diff --git a/Makefile b/Makefile
index 966c8356..445a8894 100644
--- a/Makefile
+++ b/Makefile
@@ -7,9 +7,10 @@ LIBMIN = $(LIB:lib/%.js=lib/%.min.js)
 TEST = $(wildcard test/*.coffee | sort)
 ROOT = $(shell pwd)
 
-COFFEE = bin/coffee --js --bare
-PEGJS = node_modules/.bin/pegjs --cache --plugin ./lib/pegjs-coffee-plugin
-MOCHA = node_modules/.bin/mocha --compilers coffee:./register -u tdd
+NODE = $(if ${ES6}, babel-node, node)
+COFFEE = ${NODE} bin/coffee --js --bare $(if ${ES6}, --target-es6)
+PEGJS = ${NODE} node_modules/.bin/pegjs --cache --plugin ./lib/pegjs-coffee-plugin
+MOCHA = ${NODE} node_modules/.bin/mocha --compilers coffee:./register -u tdd
 CJSIFY = node_modules/.bin/cjsify --export CoffeeScript
 MINIFIER = node_modules/.bin/esmangle
 
diff --git a/README-ES6.md b/README-ES6.md
new file mode 100644
index 00000000..5344cc0c
--- /dev/null
+++ b/README-ES6.md
@@ -0,0 +1,84 @@
+# Notes for ES6 Mode
+
+The compiler option `--target-es6` enables opportunistic use of ES6
+features. This is useful if you are targeting a runtime wiht native
+ES6 support, or if you are migrating a codebase from CoffeeScript to
+ES6.
+
+Original PR: https://github.com/michaelficarra/CoffeeScriptRedux/pull/344
+
+## What is eligible for ES6 tranpilation?
+
+The following describes the stuff we can convert to ES6. Anything that
+is not convertible falls back to the normal CoffeeScript compilation
+path.
+
+ - Most classes are eligible for conversion directly into ES6
+   classes. If you have a class that is not being converted, run the
+   compiler with the environment variable `DEBUG=es6` to see why yours
+   is being rejected. ES6 is significantly more strict than
+   CoffeeScript about what's legal in a class definition.
+
+     - if you have a constructor, it needs to be a function expression
+       directly in the class definition. No "external constructors"
+       like:
+
+            class Foo
+              constructor: someFunctionDeclaredElsewhere
+            
+     - we don't deal with compound class names like:
+
+            class X.Foo
+
+        You can get the same effect with assignment, like `X.Foo =
+        class ...`.
+
+     - we don't deal with arbitrary expressions for the parent class
+       (even though ES6 does support this pattern, it has not been
+       implemented here):
+
+            class X extends someFunctionThatRetunsAClass()
+
+     - in ES6, a derived class's constructor *must* call `super()` and
+       it must do it before referencing `this`. We will automatically
+       insert a leading `super()` if you weren't manually calling
+       super at all, but if you already call `super` and you do it
+       after referencing `this`, we will not transpile your class.
+
+     - if you have arbitrary expressions in your class body that do
+       not translate directly into methods, static methods, prototype
+       properties, or class properties we will ignore your class.
+
+ - Array destructuring is eligible for conversion, with one exception:
+   ES6 only allows rest parameters at the end of an array pattern, not
+   in the middle. So `[a, b, c...]` gets converted to `[a, b, ...c]`
+   but `[a, b..., c]` will not be converted.
+
+ - CoffeeScript bound functions (the fat arrow `=>`) are almost
+   completely analogous to ES6 arrow function expressions, except for
+   the meaning of the `arguments` keyword. We can safely rewrite every
+   practical case, but if you are using both positional arguments and
+   referencing the `arguments` keyword we will give up and fall back
+   to normal CoffeeScript compilation.
+ 
+
+## Semantic Differences
+
+There are some differences in semantics that the compiler does not try
+to patch over.
+
+ - `super` is required in derived class constructors. If you don't
+   already call super, we will insert a `super()` call to make your
+   class legal.
+
+ - if you call `super` in a function that's not inside a class
+   definition, and try to attach that function to a class and use it,
+   the `super` is not going to work.
+
+ - In CoffeeScript, a parameter's default value is used if the given
+   value is `null` or `undefined`. In ES6, a parameter's default value
+   is only used if the given value is `undefined`.
+
+ - The methods on an ES6 class are non-enumerable. The methods on a
+   CoffeeScript class are enumerable.
+
diff --git a/lib/browser.js b/lib/browser.js
index 205df7e6..b39f4ae8 100644
--- a/lib/browser.js
+++ b/lib/browser.js
@@ -28,18 +28,21 @@ CoffeeScript.load = function (url, callback) {
   var xhr;
   xhr = window.ActiveXObject ? new window.ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest;
   xhr.open('GET', url, true);
-  if ('overrideMimeType' in xhr)
+  if ('overrideMimeType' in xhr) {
     xhr.overrideMimeType('text/plain');
+  }
   xhr.onreadystatechange = function () {
-    if (!(xhr.readyState === xhr.DONE))
+    if (!(xhr.readyState === xhr.DONE)) {
       return;
+    }
     if (xhr.status === 0 || xhr.status === 200) {
       CoffeeScript.run(xhr.responseText);
     } else {
       throw new Error('Could not load ' + url);
     }
-    if (callback)
+    if (callback) {
       return callback();
+    }
   };
   return xhr.send(null);
 };
@@ -58,8 +61,9 @@ runScripts = function () {
   index = 0;
   (execute = function () {
     var script;
-    if (!(script = coffees[index++]))
+    if (!(script = coffees[index++])) {
       return;
+    }
     if (script.src) {
       return CoffeeScript.load(script.src, execute);
     } else {
diff --git a/lib/cli.js b/lib/cli.js
index bd766860..2cc27ed9 100644
--- a/lib/cli.js
+++ b/lib/cli.js
@@ -68,16 +68,18 @@ optAliases = {
   v: '--version',
   w: '--watch'
 };
-option('parse', 'compile', 'optimise', 'debug', 'literate', 'raw', 'version', 'help');
+option('parse', 'compile', 'optimise', 'debug', 'literate', 'raw', 'version', 'help', 'target-es6');
 parameter('cli', 'input', 'nodejs', 'output', 'watch');
 if (null != escodegen) {
   option('bare', 'js', 'source-map', 'eval', 'repl');
   parameter('source-map-file', 'require');
-  if (null != esmangle)
+  if (null != esmangle) {
     option('minify');
+  }
 }
-if (null != cscodegen)
+if (null != cscodegen) {
   option('cscodegen');
+}
 options = nopt(knownOpts, optAliases, process.argv, 2);
 positionalArgs = options.argv.remain;
 delete options.argv;
@@ -87,7 +89,8 @@ else
   options.optimise = true;
 options.sourceMap = options['source-map'];
 options.sourceMapFile = options['source-map-file'];
-if (!(options.compile || options.js || options.sourceMap || options.parse || options['eval'] || options.cscodegen))
+options.targetES6 = options['target-es6'];
+if (!(options.compile || options.js || options.sourceMap || options.parse || options['eval'] || options.cscodegen)) {
   if (!(null != escodegen)) {
     options.compile = true;
   } else if (positionalArgs.length) {
@@ -97,6 +100,7 @@ if (!(options.compile || options.js || options.sourceMap || options.parse || opt
   } else {
     options.repl = true;
   }
+}
 if (1 !== (null != options.parse ? options.parse : 0) + (null != options.compile ? options.compile : 0) + (null != options.js ? options.js : 0) + (null != options.sourceMap ? options.sourceMap : 0) + (null != options['eval'] ? options['eval'] : 0) + (null != options.cscodegen ? options.cscodegen : 0) + (null != options.repl ? options.repl : 0)) {
   console.error('Error: At most one of --parse (-p), --compile (-c), --js (-j), --source-map, --eval (-e), --cscodegen, or --repl may be used.');
   process.exit(1);
@@ -132,8 +136,9 @@ if (options.cscodegen && !(null != cscodegen)) {
 output = function (out) {
   if (options.output) {
     return fs.writeFile(options.output, '' + out + '\n', function (err) {
-      if (null != err)
+      if (null != err) {
         throw err;
+      }
     });
   } else {
     return process.stdout.write('' + out + '\n');
@@ -156,25 +161,29 @@ if (options.help) {
   inputSource = null != options.input ? fs.realpathSync(options.input) : options.cli && '(cli)' || '(stdin)';
   processInput = function (err) {
     var cache$3, e, js, jsAST, preprocessed, result, sourceMap, sourceMappingUrl;
-    if (null != err)
+    if (null != err) {
       throw err;
+    }
     result = null;
     input = input.toString();
-    if (65279 === input.charCodeAt(0))
+    if (65279 === input.charCodeAt(0)) {
       input = input.slice(1);
-    if (options.debug)
+    }
+    if (options.debug) {
       try {
         console.error('### PREPROCESSED CS ###');
         preprocessed = Preprocessor.process(input, { literate: options.literate });
         console.error(numberLines(humanReadable(preprocessed)));
       } catch (e$3) {
       }
+    }
     try {
       result = CoffeeScript.parse(input, {
         optimise: false,
         raw: options.raw || options.sourceMap || options.sourceMapFile || options['eval'],
         inputSource: inputSource,
-        literate: options.literate
+        literate: options.literate,
+        targetES6: options.targetES6
       });
     } catch (e$4) {
       e = e$4;
@@ -185,15 +194,17 @@ if (options.help) {
       console.error('### PARSED CS-AST ###');
       console.error(inspect(result.toBasicObject()));
     }
-    if (options.optimise && null != result)
+    if (options.optimise && null != result) {
       result = Optimiser.optimise(result);
-    if (options.parse)
+    }
+    if (options.parse) {
       if (null != result) {
         output(inspect(result.toBasicObject()));
         return;
       } else {
         process.exit(1);
       }
+    }
     if (options.debug && null != result) {
       console.error('### ' + (options.optimise ? 'OPTIMISED' : 'PARSED') + ' CS-AST ###');
       console.error(inspect(result.toBasicObject()));
@@ -213,19 +224,23 @@ if (options.help) {
         process.exit(1);
       }
     }
-    jsAST = CoffeeScript.compile(result, { bare: options.bare });
-    if (options.compile)
+    jsAST = CoffeeScript.compile(result, {
+      bare: options.bare,
+      targetES6: options.targetES6
+    });
+    if (options.compile) {
       if (null != jsAST) {
         output(inspect(jsAST));
         return;
       } else {
         process.exit(1);
       }
+    }
     if (options.debug && null != jsAST) {
       console.error('### COMPILED JS-AST ###');
       console.error(inspect(jsAST));
     }
-    if (options.minify)
+    if (options.minify) {
       try {
         jsAST = esmangle.mangle(esmangle.optimize(jsAST), { destructive: true });
       } catch (e$6) {
@@ -233,6 +248,7 @@ if (options.help) {
         console.error(e.stack || e.message);
         process.exit(1);
       }
+    }
     if (options.sourceMap) {
       try {
         sourceMap = CoffeeScript.sourceMap(jsAST, inputName, { compact: options.minify });
@@ -279,13 +295,16 @@ if (options.help) {
   };
   if (null != options.input) {
     fs.stat(options.input, function (err, stats) {
-      if (null != err)
+      if (null != err) {
         throw err;
-      if (stats.isDirectory())
+      }
+      if (stats.isDirectory()) {
         options.input = path.join(options.input, 'index.coffee');
+      }
       return fs.readFile(options.input, function (err, contents) {
-        if (null != err)
+        if (null != err) {
           throw err;
+        }
         input = contents;
         return processInput();
       });
diff --git a/lib/compiler.js b/lib/compiler.js
index f7a6868b..0379f88d 100644
--- a/lib/compiler.js
+++ b/lib/compiler.js
@@ -1,7 +1,9 @@
 // Generated by CoffeeScript 2.0.0-beta9-dev
-var any, assignment, beingDeclared, cache$, cache$1, collectIdentifiers, concat, concatMap, CS, declarationsNeeded, declarationsNeededRecursive, defaultRules, difference, divMod, dynamicMemberAccess, enabledHelpers, envEnrichments, exports, expr, fn, foldl, foldl1, forceBlock, generateMutatingWalker, generateSoak, genSym, h, hasSoak, helperNames, helpers, inlineHelpers, intersect, isIdentifierName, isScopeBoundary, JS, jsReserved, makeReturn, makeVarDeclaration, map, mapChildNodes, memberAccess, needsCaching, nub, owns, partition, span, stmt, union, usedAsExpression, variableDeclarations;
+var all, any, assignment, baseExtends, beingDeclared, cache$, cache$1, collectIdentifiers, concat, concatMap, CS, debugES6, declarationsNeeded, declarationsNeededRecursive, declaredIdentifiers, defaultRules, describeClass, difference, divMod, dynamicMemberAccess, enabledHelpers, envEnrichments, es6AssignmentPattern, es6SafeArrowExpression, es6SafeConstructor, exports, expr, find, findES6Methods, fn, foldl, foldl1, forceBlock, funcDecl, funcExpr, generateCopyingWalker, generateMutatingWalker, generateSoak, generateWalker, genSym, h, hasSoak, helperNames, helpers, inlineHelpers, intersect, isDownwardScopeBoundary, isIdentifierName, isUpwardScopeBoundary, JS, jsReserved, makeReturn, makeVarDeclaration, map, mapChildNodes, memberAccess, needsCaching, nub, owns, partition, span, stmt, union, usedAsExpression, variableDeclarations, zip;
 cache$ = require('./functional-helpers');
+find = cache$.find;
 any = cache$.any;
+all = cache$.all;
 concat = cache$.concat;
 concatMap = cache$.concatMap;
 difference = cache$.difference;
@@ -15,12 +17,14 @@ owns = cache$.owns;
 partition = cache$.partition;
 span = cache$.span;
 union = cache$.union;
+zip = cache$.zip;
 cache$1 = require('./helpers');
 beingDeclared = cache$1.beingDeclared;
 usedAsExpression = cache$1.usedAsExpression;
 envEnrichments = cache$1.envEnrichments;
 CS = require('./nodes');
 JS = require('./js-nodes');
+debugES6 = require('debug')('es6');
 exports = null != ('undefined' !== typeof module && null != module ? module.exports : void 0) ? 'undefined' !== typeof module && null != module ? module.exports : void 0 : this;
 jsReserved = [
   'break',
@@ -92,8 +96,6 @@ mapChildNodes = function (node, mapper, reducer, identity, opts) {
       accum$.push(in$(childName, node.listMembers) ? foldl(opts.listIdentity, function (accum$1) {
         for (var i$1 = 0, length$1 = node[childName].length; i$1 < length$1; ++i$1) {
           child = node[childName][i$1];
-          if (!('undefined' !== typeof child && null != child))
-            continue;
           accum$1.push(mapper(child, childName));
         }
         return accum$1;
@@ -111,8 +113,9 @@ genSym = function () {
 }();
 stmt = function (e) {
   var walk;
-  if (!(null != e))
+  if (!(null != e)) {
     return e;
+  }
   if (e.isStatement) {
     return e;
   } else if (e['instanceof'](JS.SequenceExpression)) {
@@ -128,14 +131,17 @@ stmt = function (e) {
     return new JS.BlockStatement(walk(e));
   } else if (e['instanceof'](JS.ConditionalExpression)) {
     return new JS.IfStatement(expr(e.test), stmt(e.consequent), stmt(e.alternate));
+  } else if (typeof e.becomeStatement === 'function') {
+    return e.becomeStatement();
   } else {
     return new JS.ExpressionStatement(e);
   }
 };
 expr = function (s) {
   var accum, alternate, block, consequent, iife, lastExpression, push;
-  if (!(null != s))
+  if (!(null != s)) {
     return s;
+  }
   if (s.isExpression) {
     return s;
   } else if (s['instanceof'](JS.BlockStatement)) {
@@ -150,12 +156,12 @@ expr = function (s) {
   } else if (s['instanceof'](JS.ExpressionStatement)) {
     return s.expression;
   } else if (s['instanceof'](JS.ThrowStatement)) {
-    return new JS.CallExpression(new JS.FunctionExpression(null, [], forceBlock(s)), []);
+    return new JS.CallExpression(funcExpr({ body: forceBlock(s) }), []);
   } else if (s['instanceof'](JS.IfStatement)) {
     consequent = expr(null != s.consequent ? s.consequent : helpers.undef());
     alternate = expr(null != s.alternate ? s.alternate : helpers.undef());
     return new JS.ConditionalExpression(s.test, consequent, alternate);
-  } else if (s['instanceof'](JS.ForInStatement, JS.ForStatement, JS.WhileStatement)) {
+  } else if (s['instanceof'](JS.ForInStatement, JS.ForOfStatement, JS.ForStatement, JS.WhileStatement)) {
     accum = genSym('accum');
     push = function (x) {
       return stmt(new JS.CallExpression(memberAccess(accum, 'push'), [x]));
@@ -163,8 +169,9 @@ expr = function (s) {
     s.body = forceBlock(s.body);
     if (s.body.body.length) {
       lastExpression = s.body.body.slice(-1)[0];
-      if (!lastExpression['instanceof'](JS.ThrowStatement))
+      if (!lastExpression['instanceof'](JS.ThrowStatement)) {
         s.body.body[s.body.body.length - 1] = push(expr(lastExpression));
+      }
     } else {
       s.body.body.push(push(helpers.undef()));
     }
@@ -172,26 +179,35 @@ expr = function (s) {
       s,
       new JS.ReturnStatement(accum)
     ]);
-    iife = new JS.FunctionExpression(null, [accum], block);
+    iife = funcExpr({
+      params: [accum],
+      body: block
+    });
     return new JS.CallExpression(memberAccess(iife.g(), 'call'), [
       new JS.ThisExpression,
       new JS.ArrayExpression([])
     ]);
   } else if (s['instanceof'](JS.SwitchStatement, JS.TryStatement)) {
     block = new JS.BlockStatement([makeReturn(s)]);
-    iife = new JS.FunctionExpression(null, [], block);
+    iife = funcExpr({ body: block });
     return new JS.CallExpression(memberAccess(iife.g(), 'call'), [new JS.ThisExpression]);
+  } else if (typeof s.becomeExpression === 'function') {
+    return s.becomeExpression();
   } else {
     throw new Error('expr: Cannot use a ' + s.type + ' as a value');
   }
 };
-isScopeBoundary = function (node) {
+isDownwardScopeBoundary = function (node) {
   return node['instanceof'](JS.FunctionExpression, JS.FunctionDeclaration) && !node.generated;
 };
+isUpwardScopeBoundary = function (node) {
+  return node['instanceof'](JS.FunctionExpression, JS.FunctionDeclaration);
+};
 makeReturn = function (node) {
   var stmts;
-  if (!(null != node))
+  if (!(null != node)) {
     return new JS.ReturnStatement;
+  }
   if (node['instanceof'](JS.BlockStatement)) {
     return new JS.BlockStatement([].slice.call(node.body.slice(0, -1)).concat([makeReturn(node.body.slice(-1)[0])]));
   } else if (node['instanceof'](JS.SequenceExpression)) {
@@ -201,8 +217,9 @@ makeReturn = function (node) {
   } else if (node['instanceof'](JS.SwitchStatement)) {
     return new JS.SwitchStatement(node.discriminant, map(node.cases, makeReturn));
   } else if (node['instanceof'](JS.SwitchCase)) {
-    if (!node.consequent.length)
+    if (!node.consequent.length) {
       return node;
+    }
     stmts = node.consequent.slice(-1)[0]['instanceof'](JS.BreakStatement) ? node.consequent.slice(0, -1) : node.consequent;
     return new JS.SwitchCase(node.test, [].slice.call(stmts.slice(0, -1)).concat([makeReturn(stmts.slice(-1)[0])]));
   } else if (node['instanceof'](JS.TryStatement)) {
@@ -217,66 +234,89 @@ makeReturn = function (node) {
     return new JS.ReturnStatement(expr(node));
   }
 };
-generateMutatingWalker = function (fn) {
-  return function (node) {
-    var args, mapper, reducer;
-    args = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
-    mapper = function (child, nameInParent) {
-      return [
-        nameInParent,
-        fn.apply(child, args)
-      ];
-    };
-    reducer = function (parent, param$) {
-      var cache$2, name, newChild;
-      {
-        cache$2 = param$;
-        name = cache$2[0];
-        newChild = cache$2[1];
-      }
-      parent[name] = newChild;
-      return parent;
-    };
-    return mapChildNodes(node, mapper, reducer, node, {
-      listReducer: function (param$, param$1) {
-        var _, accum, cache$2, cache$3, name, newChild;
+generateWalker = function (makeIdentity) {
+  return function (fn) {
+    return function (node) {
+      var args, identity, mapper, reducer;
+      args = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
+      mapper = function (child, nameInParent) {
+        return [
+          nameInParent,
+          null != child ? fn.apply(child, args) : child
+        ];
+      };
+      reducer = function (parent, param$) {
+        var cache$2, name, newChild;
         {
           cache$2 = param$;
-          _ = cache$2[0];
-          accum = cache$2[1];
-        }
-        {
-          cache$3 = param$1;
-          name = cache$3[0];
-          newChild = cache$3[1];
+          name = cache$2[0];
+          newChild = cache$2[1];
         }
-        return [
-          name,
-          accum.concat(newChild)
-        ];
-      },
-      listIdentity: [
-        null,
-        []
-      ]
-    });
+        parent[name] = newChild;
+        return parent;
+      };
+      identity = makeIdentity(node);
+      return mapChildNodes(node, mapper, reducer, identity, {
+        listReducer: function (param$, param$1) {
+          var _, accum, cache$2, cache$3, name, newChild;
+          {
+            cache$2 = param$;
+            _ = cache$2[0];
+            accum = cache$2[1];
+          }
+          {
+            cache$3 = param$1;
+            name = cache$3[0];
+            newChild = cache$3[1];
+          }
+          return [
+            name,
+            accum.concat(newChild)
+          ];
+        },
+        listIdentity: [
+          null,
+          []
+        ]
+      });
+    };
   };
 };
+generateMutatingWalker = generateWalker(function (node) {
+  return node;
+});
+generateCopyingWalker = generateWalker(function (node) {
+  return node.shallowCopy();
+});
+declaredIdentifiers = function (node) {
+  if (!(null != node)) {
+    return [];
+  }
+  if (node['instanceof'](JS.Identifier)) {
+    return [node.name];
+  } else if (node['instanceof'](JS.MemberExpression)) {
+    return [];
+  } else {
+    return mapChildNodes(node, declaredIdentifiers, function (a, b) {
+      return a.concat(b);
+    }, []);
+  }
+};
 declarationsNeeded = function (node) {
-  if (!(null != node))
+  if (!(null != node)) {
     return [];
-  if (node['instanceof'](JS.AssignmentExpression) && node.operator === '=' && node.left['instanceof'](JS.Identifier)) {
-    return [node.left.name];
-  } else if (node['instanceof'](JS.ForInStatement) && node.left['instanceof'](JS.Identifier)) {
-    return [node.left.name];
+  }
+  if (node['instanceof'](JS.AssignmentExpression) && node.operator === '=' || node['instanceof'](JS.ForInStatement) || node['instanceof'](JS.ForOfStatement)) {
+    return declaredIdentifiers(node.left);
   } else {
     return [];
   }
 };
 declarationsNeededRecursive = function (node) {
-  if (!(null != node))
+  if (!(null != node)) {
     return [];
-  if (isScopeBoundary(node)) {
+  }
+  if (isDownwardScopeBoundary(node)) {
     return [];
   } else {
     return union(declarationsNeeded(node), mapChildNodes(node, declarationsNeededRecursive, function (a, b) {
@@ -285,11 +325,12 @@ declarationsNeededRecursive = function (node) {
   }
 };
 variableDeclarations = function (node) {
-  if (!(null != node))
+  if (!(null != node)) {
     return [];
+  }
   if (node['instanceof'](JS.FunctionDeclaration)) {
     return [node.id];
-  } else if (isScopeBoundary(node)) {
+  } else if (isUpwardScopeBoundary(node)) {
     return [];
   } else if (node['instanceof'](JS.VariableDeclarator)) {
     return [node.id];
@@ -308,6 +349,12 @@ collectIdentifiers = function (node) {
       return [node.name];
     case !(node['instanceof'](JS.MemberExpression) && !node.computed):
       return collectIdentifiers(node.object);
+    case !node['instanceof'](JS.ObjectPattern):
+      return map(node.properties, function (p) {
+        return collectIdentifiers(p.value);
+      }).reduce(function (a, b) {
+        return a.concat(b);
+      }, []);
     default:
       return mapChildNodes(node, collectIdentifiers, function (a, b) {
         return a.concat(b);
@@ -316,15 +363,17 @@ collectIdentifiers = function (node) {
   }.call(this));
 };
 needsCaching = function (node) {
-  if (!(null != node))
+  if (!(null != node)) {
     return false;
+  }
   return envEnrichments(node, []).length > 0 || node['instanceof'](CS.FunctionApplications, CS.DoOp, CS.NewOp, CS.ArrayInitialiser, CS.ObjectInitialiser, CS.RegExp, CS.HeregExp, CS.PreIncrementOp, CS.PostIncrementOp, CS.PreDecrementOp, CS.PostDecrementOp, CS.Range) || mapChildNodes(node, needsCaching, function (a, b) {
     return a || b;
   }, false);
 };
 forceBlock = function (node) {
-  if (!(null != node))
+  if (!(null != node)) {
     return new JS.BlockStatement([]);
+  }
   node = stmt(node);
   if (node['instanceof'](JS.BlockStatement)) {
     return node;
@@ -371,14 +420,52 @@ dynamicMemberAccess = function (e, index) {
     return new JS.MemberExpression(true, expr(e), expr(index));
   }
 };
-assignment = function (assignee, expression, valueUsed) {
-  var alternate, assignments, consequent, e, elements, i, index, m, numElements, p, propName, restName, size, test;
+es6AssignmentPattern = function (assignee) {
+  var elements, elt, index, props;
+  if (assignee instanceof JS.ArrayExpression) {
+    elements = function (accum$) {
+      for (var i$ = 0, length$ = assignee.elements.length; i$ < length$; ++i$) {
+        elt = assignee.elements[i$];
+        index = i$;
+        accum$.push(elt instanceof JS.Identifier ? elt : elt.rest ? index === assignee.elements.length - 1 ? new JS.RestElement(elt.expression) : void 0 : es6AssignmentPattern(elt));
+      }
+      return accum$;
+    }.call(this, []);
+    if (all(elements, function (elt) {
+        return null != elt;
+      }) && elements.length > 0) {
+      return new JS.ArrayPattern(elements);
+    }
+  } else if (assignee instanceof JS.ObjectExpression) {
+    props = assignee.properties.map(function (p) {
+      var pattern;
+      if (p.value instanceof JS.Identifier) {
+        if (p.value.name === p.key.name) {
+          p.shorthand = true;
+        }
+        return p;
+      } else if (pattern = es6AssignmentPattern(p.value)) {
+        return new JS.Property(p.key, pattern);
+      }
+    });
+    if (all(props, function (elt) {
+        return null != elt;
+      }) && props.length > 0) {
+      return new JS.ObjectPattern(props);
+    }
+  }
+};
+assignment = function (assignee, expression, options, valueUsed) {
+  var alternate, assignments, consequent, e, elements, es6Pattern, i, index, m, numElements, p, propName, restName, size, test;
   if (null == valueUsed)
     valueUsed = false;
   assignments = [];
   expression = expr(expression);
   switch (false) {
   case !assignee.rest:
+  case !(options.targetES6 && (es6Pattern = es6AssignmentPattern(assignee))):
+    assignments.push(new JS.AssignmentExpression('=', es6Pattern, expression));
+    break;
   case !assignee['instanceof'](JS.ArrayExpression):
     e = expression;
     if (valueUsed || assignee.elements.length > 1) {
@@ -389,9 +476,10 @@ assignment = function (assignee, expression, valueUsed) {
     for (var i$ = 0, length$ = elements.length; i$ < length$; ++i$) {
       m = elements[i$];
       i = i$;
-      if (m.rest)
+      if (m.rest) {
         break;
-      assignments.push(assignment(m, dynamicMemberAccess(e, new JS.Literal(i)), valueUsed));
+      }
+      assignments.push(assignment(m, dynamicMemberAccess(e, new JS.Literal(i)), options, valueUsed));
     }
     if (elements.length > 0) {
       if (elements.slice(-1)[0].rest) {
@@ -429,8 +517,9 @@ assignment = function (assignee, expression, valueUsed) {
       }
       if (any(elements, function (p) {
           return p.rest;
-        }))
+        })) {
         throw new Error('Positional destructuring assignments may not have more than one rest operator');
+      }
     }
     break;
   case !assignee['instanceof'](JS.ObjectExpression):
@@ -442,7 +531,7 @@ assignment = function (assignee, expression, valueUsed) {
     for (var i$3 = 0, length$3 = assignee.properties.length; i$3 < length$3; ++i$3) {
       m = assignee.properties[i$3];
       propName = m.key['instanceof'](JS.Identifier) ? new JS.Literal(m.key.name) : m.key;
-      assignments.push(assignment(m.value, dynamicMemberAccess(e, propName), valueUsed));
+      assignments.push(assignment(m.value, dynamicMemberAccess(e, propName), options, valueUsed));
     }
     break;
   case !assignee['instanceof'](JS.Identifier, JS.GenSym, JS.MemberExpression):
@@ -577,29 +666,69 @@ generateSoak = function () {
     }), e);
   };
 }();
+baseExtends = function (myName, copyClassProperties) {
+  var block, child, ctor, parent, protoAccess;
+  protoAccess = function (e) {
+    return memberAccess(e, 'prototype');
+  };
+  child = new JS.Identifier('child');
+  parent = new JS.Identifier('parent');
+  ctor = new JS.Identifier('ctor');
+  block = [
+    copyClassProperties(parent, child),
+    funcDecl({
+      id: ctor,
+      body: new JS.BlockStatement([stmt(new JS.AssignmentExpression('=', memberAccess(new JS.ThisExpression, 'constructor'), child))])
+    }),
+    new JS.AssignmentExpression('=', protoAccess(ctor), protoAccess(parent)),
+    new JS.AssignmentExpression('=', protoAccess(child), new JS.NewExpression(ctor, [])),
+    new JS.AssignmentExpression('=', memberAccess(child, '__super__'), protoAccess(parent)),
+    new JS.ReturnStatement(child)
+  ];
+  return funcDecl({
+    id: helperNames[myName],
+    params: [
+      child,
+      parent
+    ],
+    body: new JS.BlockStatement(map(block, stmt))
+  });
+};
 helperNames = {};
 helpers = {
   'extends': function () {
-    var block, child, ctor, f, key, parent, protoAccess;
-    protoAccess = function (e) {
-      return memberAccess(e, 'prototype');
-    };
-    child = new JS.Identifier('child');
-    parent = new JS.Identifier('parent');
-    ctor = new JS.Identifier('ctor');
+    var copyClassProperties, key;
     key = new JS.Identifier('key');
-    block = [
-      new JS.ForInStatement(new JS.VariableDeclaration('var', [new JS.VariableDeclarator(key, null)]), parent, new JS.IfStatement(helpers.isOwn(parent, key), f = stmt(new JS.AssignmentExpression('=', new JS.MemberExpression(true, child, key), new JS.MemberExpression(true, parent, key))))),
-      new JS.FunctionDeclaration(ctor, [], new JS.BlockStatement([stmt(new JS.AssignmentExpression('=', memberAccess(new JS.ThisExpression, 'constructor'), child))])),
-      new JS.AssignmentExpression('=', protoAccess(ctor), protoAccess(parent)),
-      new JS.AssignmentExpression('=', protoAccess(child), new JS.NewExpression(ctor, [])),
-      new JS.AssignmentExpression('=', memberAccess(child, '__super__'), protoAccess(parent)),
-      new JS.ReturnStatement(child)
-    ];
-    return new JS.FunctionDeclaration(helperNames['extends'], [
-      child,
-      parent
-    ], new JS.BlockStatement(map(block, stmt)));
+    copyClassProperties = function (parent, child) {
+      var f;
+      return new JS.ForInStatement(new JS.VariableDeclaration('var', [new JS.VariableDeclarator(key, null)]), parent, new JS.IfStatement(helpers.isOwn(parent, key), f = stmt(new JS.AssignmentExpression('=', new JS.MemberExpression(true, child, key), new JS.MemberExpression(true, parent, key)))));
+    };
+    return baseExtends('extends', copyClassProperties);
+  },
+  extendsES6: function () {
+    var copyClassProperties;
+    copyClassProperties = function (parent, child) {
+      var condition, conditional, copyKey, func, key, propertyNames;
+      propertyNames = new JS.CallExpression(memberAccess(new JS.Identifier('Object'), 'getOwnPropertyNames'), [parent]);
+      key = new JS.Identifier('key');
+      copyKey = new JS.AssignmentExpression('=', new JS.MemberExpression(true, child, key), new JS.MemberExpression(true, parent, key));
+      condition = [
+        'callee',
+        'caller',
+        'arguments'
+      ].map(function (forbidden) {
+        return new JS.BinaryExpression('!==', key, new JS.Literal(forbidden));
+      }).reduce(function (a, b) {
+        return new JS.BinaryExpression('&&', a, b);
+      });
+      conditional = new JS.IfStatement(condition, forceBlock(copyKey));
+      func = funcExpr({
+        params: [key],
+        body: forceBlock(conditional)
+      });
+      return new JS.CallExpression(memberAccess(propertyNames, 'forEach'), [func]);
+    };
+    return baseExtends('extendsES6', copyClassProperties);
   },
   construct: function () {
     var args, block, child, ctor, fn, result;
@@ -609,7 +738,7 @@ helpers = {
     args = new JS.Identifier('args');
     result = new JS.Identifier('result');
     block = [
-      new JS.VariableDeclaration('var', [new JS.VariableDeclarator(fn, new JS.FunctionExpression(null, [], new JS.BlockStatement([])))]),
+      new JS.VariableDeclaration('var', [new JS.VariableDeclarator(fn, funcExpr({ body: new JS.BlockStatement([]) }))]),
       new JS.AssignmentExpression('=', memberAccess(fn, 'prototype'), memberAccess(ctor, 'prototype')),
       new JS.VariableDeclaration('var', [
         new JS.VariableDeclarator(child, new JS.NewExpression(fn, [])),
@@ -620,10 +749,14 @@ helpers = {
       ]),
       new JS.ReturnStatement(new JS.ConditionalExpression(new JS.BinaryExpression('===', result, new JS.CallExpression(new JS.Identifier('Object'), [result])), result, child))
     ];
-    return new JS.FunctionDeclaration(helperNames.construct, [
-      ctor,
-      args
-    ], new JS.BlockStatement(map(block, stmt)));
+    return funcDecl({
+      id: helperNames.construct,
+      params: [
+        ctor,
+        args
+      ],
+      body: new JS.BlockStatement(map(block, stmt))
+    });
   },
   isOwn: function () {
     var args, functionBody, hop, params;
@@ -633,7 +766,11 @@ helpers = {
       new JS.Identifier('p')
     ];
     functionBody = [new JS.CallExpression(memberAccess(hop, 'call'), args)];
-    return new JS.FunctionDeclaration(helperNames.isOwn, params, makeReturn(new JS.BlockStatement(map(functionBody, stmt))));
+    return funcDecl({
+      id: helperNames.isOwn,
+      params: params,
+      body: makeReturn(new JS.BlockStatement(map(functionBody, stmt)))
+    });
   },
   'in': function () {
     var functionBody, i, length, list, loopBody, member, varDeclaration;
@@ -650,10 +787,65 @@ helpers = {
       new JS.ForStatement(varDeclaration, new JS.BinaryExpression('<', i, length), new JS.UpdateExpression('++', true, i), loopBody),
       new JS.Literal(false)
     ];
-    return new JS.FunctionDeclaration(helperNames['in'], [
-      member,
-      list
-    ], makeReturn(new JS.BlockStatement(map(functionBody, stmt))));
+    return funcDecl({
+      id: helperNames['in'],
+      params: [
+        member,
+        list
+      ],
+      body: makeReturn(new JS.BlockStatement(map(functionBody, stmt)))
+    });
+  },
+  range: function () {
+    var body, first, fn, i, init, isInclusive, last, step, test, update;
+    first = new JS.Identifier('first');
+    last = new JS.Identifier('last');
+    step = new JS.Identifier('step');
+    isInclusive = new JS.Identifier('isInclusive');
+    i = new JS.Identifier('i');
+    init = new JS.VariableDeclaration('let', [new JS.VariableDeclarator(i, first)]);
+    test = new JS.ConditionalExpression(isInclusive, new JS.BinaryExpression('<=', i, last), new JS.BinaryExpression('<', i, last));
+    update = new JS.AssignmentExpression('=', i, new JS.BinaryExpression('+', i, step));
+    body = [new JS.ForStatement(init, test, update, new JS.BlockStatement([stmt(new JS.YieldExpression(i))]))];
+    fn = funcDecl({
+      id: helperNames.range,
+      params: [
+        first,
+        last,
+        step,
+        isInclusive
+      ],
+      defaults: [
+        null,
+        null,
+        new JS.Literal(1),
+        new JS.Literal(false)
+      ],
+      body: new JS.BlockStatement(map(body, stmt))
+    });
+    fn.generator = true;
+    return fn;
+  },
+  inclusiveRange: function () {
+    var body, first, last, step;
+    first = new JS.Identifier('first');
+    last = new JS.Identifier('last');
+    step = new JS.Identifier('step');
+    body = [makeReturn(helpers.range(first, last, step, new JS.Literal(true)))];
+    return funcDecl({
+      id: helperNames.inclusiveRange,
+      params: [
+        first,
+        last,
+        step
+      ],
+      defaults: [
+        null,
+        null,
+        new JS.Literal(1)
+      ],
+      body: new JS.BlockStatement(body)
+    });
   }
 };
 enabledHelpers = [];
@@ -688,6 +880,217 @@ for (h in inlineHelpers) {
   fn = inlineHelpers[h];
   helpers[h] = fn;
 }
+findES6Methods = function (classIdentifier, ctor, isDerivedClass, body) {
+  var expression, foundConstructor, m, methodBody, methodIdentifier, methods, object, properties, property, propertyName, rewriteSuper, rewriteThis, safeCtorBody, statement, unmatched;
+  methods = [];
+  properties = [];
+  unmatched = [];
+  foundConstructor = false;
+  methodIdentifier = function (expression) {
+    var prop;
+    prop = expression.left.property;
+    if (prop instanceof JS.Identifier) {
+      return new JS.Identifier(prop.name);
+    } else if (prop instanceof JS.Literal) {
+      return new JS.Identifier(prop.value);
+    }
+  };
+  rewriteSuper = generateCopyingWalker(function () {
+    if (isDownwardScopeBoundary(this)) {
+      return this;
+    } else if (this.toES6Super) {
+      return this.toES6Super();
+    } else {
+      return rewriteSuper(this);
+    }
+  });
+  if (ctor) {
+    ctor = rewriteSuper(ctor);
+    if (safeCtorBody = es6SafeConstructor(isDerivedClass, ctor.body)) {
+      methods.push(new JS.MethodDefinition(new JS.Identifier('constructor'), funcExpr({
+        params: ctor.params,
+        defaults: ctor.defaults,
+        rest: ctor.rest,
+        body: safeCtorBody
+      })));
+    } else {
+      debugES6('' + describeClass(classIdentifier) + "'s constructor does not follow the ES6 rules for super.");
+      unmatched.push(ctor);
+    }
+  }
+  for (var i$ = 0, length$ = body.body.length; i$ < length$; ++i$) {
+    statement = body.body[i$];
+    if (statement instanceof JS.FunctionDeclaration && !foundConstructor) {
+      foundConstructor = true;
+      continue;
+    }
+    expression = statement.expression;
+    if (expression instanceof JS.AssignmentExpression && expression.operator === '=' && expression.left instanceof JS.MemberExpression) {
+      property = expression.left.property;
+      propertyName = property instanceof JS.Identifier ? property.name : property instanceof JS.Literal ? property.value : void 0;
+      object = expression.left.object;
+      methodBody = expression.right instanceof JS.FunctionExpression ? funcExpr({
+        id: expression.right.id,
+        params: expression.right.params,
+        defaults: expression.right.defaults,
+        rest: expression.right.rest,
+        body: rewriteSuper(expression.right.body)
+      }) : void 0;
+      if (object instanceof JS.MemberExpression && object.property.name === 'prototype' && object.object['instanceof'](JS.ThisExpression)) {
+        if (methodBody) {
+          methods.push(new JS.MethodDefinition(new JS.Identifier(propertyName), methodBody));
+        } else {
+          properties.push(new JS.AssignmentExpression('=', memberAccess(memberAccess(classIdentifier, 'prototype'), propertyName), expression.right));
+        }
+      } else if (object instanceof JS.ThisExpression) {
+        if (methodBody) {
+          m = new JS.MethodDefinition(new JS.Identifier(propertyName), methodBody);
+          m['static'] = true;
+          methods.push(m);
+        } else {
+          properties.push(new JS.AssignmentExpression('=', memberAccess(classIdentifier, propertyName), expression.right));
+        }
+      }
+    } else {
+      unmatched.push(statement);
+    }
+  }
+  rewriteThis = generateCopyingWalker(function () {
+    if (this['instanceof'](JS.ThisExpression)) {
+      return classIdentifier;
+    } else if (isDownwardScopeBoundary(this)) {
+      return this;
+    } else {
+      return rewriteThis(this);
+    }
+  });
+  properties = map(properties, rewriteThis);
+  return {
+    methods: methods,
+    properties: properties,
+    unmatched: unmatched
+  };
+};
+es6SafeConstructor = function (isDerivedClass, block) {
+  var calledSuper, callsSuper, either, referencesThis, sawThis, statement;
+  if (!isDerivedClass) {
+    return block;
+  }
+  either = function (a, b) {
+    return a || b;
+  };
+  referencesThis = function (node) {
+    if (null != node && node instanceof JS.ThisExpression) {
+      return true;
+    } else {
+      return mapChildNodes(node, referencesThis, either, false);
+    }
+  };
+  callsSuper = function (node) {
+    if (null != node && node instanceof JS.CallExpression && node.callee instanceof JS.Identifier && node.callee.name === 'super') {
+      return true;
+    } else {
+      return mapChildNodes(node, callsSuper, either, false);
+    }
+  };
+  sawThis = calledSuper = false;
+  for (var i$ = 0, length$ = block.body.length; i$ < length$; ++i$) {
+    statement = block.body[i$];
+    sawThis = sawThis || referencesThis(statement);
+    if (callsSuper(statement)) {
+      if (sawThis) {
+        return null;
+      } else {
+        calledSuper = true;
+      }
+    }
+  }
+  if (!calledSuper) {
+    block = new JS.BlockStatement(block.body.slice());
+    block.body.unshift(stmt(new JS.CallExpression(new JS.Identifier('super'), [])));
+  }
+  return block;
+};
+es6SafeArrowExpression = function (parameters, defaults, rest, block) {
+  var rewriteArguments, statement, usesArguments;
+  usesArguments = function (node) {
+    if (!(null != node)) {
+      return false;
+    } else if (node instanceof JS.Identifier) {
+      return node.name === 'arguments';
+    } else {
+      return mapChildNodes(node, usesArguments, function (a, b) {
+        return a || b;
+      }, false);
+    }
+  };
+  if (any(block.body, usesArguments)) {
+    if (parameters.length > 0) {
+      debugES6("Skipping arrow function conversion because your bound function refers to the 'arguments' keyword and has regular positional arguments");
+      return null;
+    }
+    if (null != rest)
+      rest;
+    else
+      rest = genSym('arguments');
+    rewriteArguments = generateMutatingWalker(function () {
+      if (this['instanceof'](JS.Identifier) && this.name === 'arguments') {
+        return rest;
+      } else if (isDownwardScopeBoundary(this)) {
+        return this;
+      } else {
+        return rewriteArguments(this);
+      }
+    });
+    for (var i$ = 0, length$ = block.body.length; i$ < length$; ++i$) {
+      statement = block.body[i$];
+      rewriteArguments(statement);
+    }
+  }
+  if (block.body.length === 1 && block.body[0] instanceof JS.ReturnStatement) {
+    fn = new JS.ArrowFunctionExpression(parameters, defaults, rest, block.body[0].argument);
+    fn.expression = true;
+    return fn;
+  } else {
+    return new JS.ArrowFunctionExpression(parameters, defaults, rest, block);
+  }
+};
+describeClass = function (name, parentNode) {
+  if (null != name ? name.name : void 0) {
+    return 'class ' + name.name;
+  }
+  if (parentNode instanceof CS.AssignOp && parentNode.assignee instanceof CS.Identifier) {
+    return 'An anonymous class assigned to identifier ' + parentNode.assignee.data;
+  }
+  if (parentNode instanceof CS.ObjectInitialiserMember) {
+    return 'An anonymous class assigned to property ' + parentNode.key.data;
+  }
+  return 'An anonymous class';
+};
+funcExpr = function (param$) {
+  var body, cache$2, defaults, id, params, rest;
+  {
+    cache$2 = param$;
+    id = cache$2.id;
+    params = cache$2.params;
+    defaults = cache$2.defaults;
+    rest = cache$2.rest;
+    body = cache$2.body;
+  }
+  return new JS.FunctionExpression(null != id ? id : null, null != params ? params : [], null != defaults ? defaults : [], null != rest ? rest : null, body);
+};
+funcDecl = function (param$) {
+  var body, cache$2, defaults, id, params, rest;
+  {
+    cache$2 = param$;
+    id = cache$2.id;
+    params = cache$2.params;
+    defaults = cache$2.defaults;
+    rest = cache$2.rest;
+    body = cache$2.body;
+  }
+  return new JS.FunctionDeclaration(null != id ? id : null, null != params ? params : [], null != defaults ? defaults : [], null != rest ? rest : null, body);
+};
 exports.Compiler = function () {
   Compiler.compile = function (this$) {
     return function () {
@@ -699,15 +1102,16 @@ exports.Compiler = function () {
     [
       CS.Program,
       function (param$) {
-        var block, body, cache$2, cache$3, decls, fnDeclHelpers, inScope, options, otherHelpers, pkg, program;
+        var block, body, cache$2, cache$3, decls, ecmaMode, fnDeclHelpers, inScope, options, otherHelpers, pkg, program;
         {
           cache$2 = param$;
           body = cache$2.body;
           inScope = cache$2.inScope;
           options = cache$2.options;
         }
-        if (!(null != body))
+        if (!(null != body)) {
           return new JS.Program([]);
+        }
         block = stmt(body);
         block = block['instanceof'](JS.BlockStatement) ? block.body : [block];
         cache$3 = partition(enabledHelpers, function (helper) {
@@ -718,13 +1122,15 @@ exports.Compiler = function () {
         [].push.apply(block, fnDeclHelpers);
         [].unshift.apply(block, otherHelpers);
         decls = nub(concatMap(block, declarationsNeededRecursive));
-        if (decls.length && !options.bare)
-          block = [stmt(new JS.UnaryExpression('void', new JS.CallExpression(memberAccess(new JS.FunctionExpression(null, [], new JS.BlockStatement(block)), 'call'), [new JS.ThisExpression])))];
+        if (decls.length && !options.bare) {
+          block = [stmt(new JS.UnaryExpression('void', new JS.CallExpression(memberAccess(funcExpr({ body: new JS.BlockStatement(block) }), 'call'), [new JS.ThisExpression])))];
+        }
         pkg = require('./../package.json');
         program = new JS.Program(block);
+        ecmaMode = options.targetES6 ? '-es6' : '';
         program.leadingComments = [{
             type: 'Line',
-            value: ' Generated by CoffeeScript ' + pkg.version
+            value: ' Generated by CoffeeScript ' + pkg.version + ecmaMode
           }];
         return program;
       }
@@ -780,20 +1186,23 @@ exports.Compiler = function () {
           ancestry = cache$2.ancestry;
         }
         if (null != alternate) {
-          if (!(null != consequent))
+          if (!(null != consequent)) {
             throw new Error('Conditional with non-null alternate requires non-null consequent');
-          if (!alternate['instanceof'](JS.IfStatement))
+          }
+          if (!alternate['instanceof'](JS.IfStatement)) {
             alternate = forceBlock(alternate);
+          }
         }
-        if (null != alternate || (null != ancestry[0] ? ancestry[0]['instanceof'](CS.Conditional) : void 0))
+        if (null != alternate || (null != ancestry[0] ? ancestry[0]['instanceof'](CS.Conditional) : void 0)) {
           consequent = forceBlock(consequent);
-        return new JS.IfStatement(expr(condition), stmt(consequent), alternate);
+        }
+        return new JS.IfStatement(expr(condition), forceBlock(consequent), alternate);
       }
     ],
     [
       CS.ForIn,
       function (param$) {
-        var block, body, cache$2, compile, e, filter, i, increment, k, keyAssignee, length, op, step, target, update, valAssignee, varDeclaration;
+        var block, body, cache$2, compile, e, es6Target, filter, i, increment, k, keyAssignee, length, op, options, rangeArgs, step, target, update, valAssignee, valPattern, varDeclaration;
         {
           cache$2 = param$;
           valAssignee = cache$2.valAssignee;
@@ -803,12 +1212,30 @@ exports.Compiler = function () {
           filter = cache$2.filter;
           body = cache$2.body;
           compile = cache$2.compile;
+          options = cache$2.options;
+        }
+        if (options.targetES6 && !filter) {
+          es6Target = this.target['instanceof'](CS.Range) ? (rangeArgs = [
+            compile(this.target.left),
+            compile(this.target.right)
+          ], !(step instanceof JS.Literal && step.value === 1) ? rangeArgs.push(step) : void 0, this.target.isInclusive ? helpers.inclusiveRange.apply(helpers, [].slice.call(rangeArgs)) : helpers.range.apply(helpers, [].slice.call(rangeArgs))) : step instanceof JS.Literal && step.value === 1 ? target : void 0;
+          if (es6Target && valAssignee && (valPattern = valAssignee instanceof JS.Identifier ? valAssignee : es6AssignmentPattern(valAssignee))) {
+            if (keyAssignee) {
+              return new JS.ForOfStatement(new JS.VariableDeclaration('var', [new JS.VariableDeclarator(new JS.ArrayPattern([
+                  keyAssignee,
+                  valPattern
+                ]))]), new JS.CallExpression(memberAccess(es6Target, 'entries'), []), forceBlock(body));
+            } else {
+              return new JS.ForOfStatement(new JS.VariableDeclaration('var', [new JS.VariableDeclarator(valPattern)]), es6Target, forceBlock(body));
+            }
+          }
         }
         i = genSym('i');
         length = genSym('length');
         block = forceBlock(body);
-        if (!block.body.length)
+        if (!block.body.length) {
           block.body.push(stmt(helpers.undef()));
+        }
         increment = null != this.step && !(this.step['instanceof'](CS.Int) && this.step.data === 1) ? function (x) {
           return new JS.AssignmentExpression('+=', x, step);
         } : function (x) {
@@ -817,8 +1244,9 @@ exports.Compiler = function () {
         if (this.target['instanceof'](CS.Range) && (this.target.left['instanceof'](CS.Int) || this.target.left['instanceof'](CS.UnaryNegateOp) && this.target.left.expression['instanceof'](CS.Int)) && (this.target.right['instanceof'](CS.Int) || this.target.right['instanceof'](CS.UnaryNegateOp) && this.target.right.expression['instanceof'](CS.Int))) {
           varDeclaration = new JS.VariableDeclaration('var', [new JS.VariableDeclarator(i, compile(this.target.left))]);
           update = increment(i);
-          if (null != this.filter)
+          if (null != this.filter) {
             block.body.unshift(stmt(new JS.IfStatement(new JS.UnaryExpression('!', filter), new JS.ContinueStatement)));
+          }
           if (null != keyAssignee) {
             k = genSym('k');
             varDeclaration.declarations.unshift(new JS.VariableDeclarator(k, new JS.Literal(0)));
@@ -828,8 +1256,9 @@ exports.Compiler = function () {
             ]);
             block.body.unshift(stmt(new JS.AssignmentExpression('=', keyAssignee, k)));
           }
-          if (null != valAssignee)
+          if (null != valAssignee) {
             block.body.unshift(stmt(new JS.AssignmentExpression('=', valAssignee, i)));
+          }
           op = this.target.isInclusive ? '<=' : '<';
           return new JS.ForStatement(varDeclaration, new JS.BinaryExpression(op, i, compile(this.target.right)), update, block);
         }
@@ -838,21 +1267,25 @@ exports.Compiler = function () {
           new JS.VariableDeclarator(i, new JS.Literal(0)),
           new JS.VariableDeclarator(length, memberAccess(e, 'length'))
         ]);
-        if (!(e === target))
+        if (!(e === target)) {
           varDeclaration.declarations.unshift(new JS.VariableDeclarator(e, target));
-        if (null != this.filter)
+        }
+        if (null != this.filter) {
           block.body.unshift(stmt(new JS.IfStatement(new JS.UnaryExpression('!', filter), new JS.ContinueStatement)));
-        if (null != keyAssignee)
-          block.body.unshift(stmt(assignment(keyAssignee, i)));
-        if (null != valAssignee)
-          block.body.unshift(stmt(assignment(valAssignee, new JS.MemberExpression(true, e, i))));
+        }
+        if (null != keyAssignee) {
+          block.body.unshift(stmt(assignment(keyAssignee, i, options)));
+        }
+        if (null != valAssignee) {
+          block.body.unshift(stmt(assignment(valAssignee, new JS.MemberExpression(true, e, i), options)));
+        }
         return new JS.ForStatement(varDeclaration, new JS.BinaryExpression('<', i, length), increment(i), block);
       }
     ],
     [
       CS.ForOf,
       function (param$) {
-        var block, body, cache$2, e, filter, keyAssignee, right, target, valAssignee;
+        var block, body, cache$2, e, filter, keyAssignee, options, right, target, valAssignee;
         {
           cache$2 = param$;
           keyAssignee = cache$2.keyAssignee;
@@ -860,17 +1293,22 @@ exports.Compiler = function () {
           target = cache$2.target;
           filter = cache$2.filter;
           body = cache$2.body;
+          options = cache$2.options;
         }
         block = forceBlock(body);
-        if (!block.body.length)
+        if (!block.body.length) {
           block.body.push(stmt(helpers.undef()));
+        }
         e = this.isOwn && needsCaching(this.target) ? genSym('cache') : expr(target);
-        if (null != this.filter)
+        if (null != this.filter) {
           block.body.unshift(stmt(new JS.IfStatement(new JS.UnaryExpression('!', filter), new JS.ContinueStatement)));
-        if (null != valAssignee)
-          block.body.unshift(stmt(assignment(valAssignee, new JS.MemberExpression(true, e, keyAssignee))));
-        if (this.isOwn)
+        }
+        if (null != valAssignee) {
+          block.body.unshift(stmt(assignment(valAssignee, new JS.MemberExpression(true, e, keyAssignee), options)));
+        }
+        if (this.isOwn) {
           block.body.unshift(stmt(new JS.IfStatement(new JS.UnaryExpression('!', helpers.isOwn(e, keyAssignee)), new JS.ContinueStatement)));
+        }
         right = e === target ? e : new JS.AssignmentExpression('=', e, target);
         return new JS.ForInStatement(keyAssignee, right, block);
       }
@@ -906,8 +1344,9 @@ exports.Compiler = function () {
             c.test = new JS.UnaryExpression('!', c.test);
           }
         }
-        if (null != alternate)
+        if (null != alternate) {
           cases.push(new JS.SwitchCase(null, [stmt(alternate)]));
+        }
         for (var i$1 = 0, length$1 = cases.slice(0, -1).length; i$1 < length$1; ++i$1) {
           c = cases.slice(0, -1)[i$1];
           if (!((null != c.consequent ? c.consequent.length : void 0) > 0))
@@ -938,20 +1377,22 @@ exports.Compiler = function () {
     [
       CS.Try,
       function (param$) {
-        var body, cache$2, catchAssignee, catchBlock, catchBody, e, finallyBlock, finallyBody, handlers;
+        var body, cache$2, catchAssignee, catchBlock, catchBody, e, finallyBlock, finallyBody, handlers, options;
         {
           cache$2 = param$;
           body = cache$2.body;
           catchAssignee = cache$2.catchAssignee;
           catchBody = cache$2.catchBody;
           finallyBody = cache$2.finallyBody;
+          options = cache$2.options;
         }
         finallyBlock = null != this.finallyBody ? forceBlock(finallyBody) : null;
         if (null != this.catchBody || !(null != this.finallyBody)) {
           e = genSym('e');
           catchBlock = forceBlock(catchBody);
-          if (null != catchAssignee)
-            catchBlock.body.unshift(stmt(assignment(catchAssignee, e)));
+          if (null != catchAssignee) {
+            catchBlock.body.unshift(stmt(assignment(catchAssignee, e, options)));
+          }
           handlers = [new JS.CatchClause(e, catchBlock)];
         } else {
           handlers = [];
@@ -1029,12 +1470,12 @@ exports.Compiler = function () {
         if (any(ancestry, function (ancestor) {
             return ancestor['instanceof'](CS.Functions);
           })) {
-          return new JS.CallExpression(memberAccess(new JS.FunctionExpression(null, [], new JS.BlockStatement(body)), 'apply'), [
+          return new JS.CallExpression(memberAccess(funcExpr({ body: new JS.BlockStatement(body) }), 'apply'), [
             new JS.ThisExpression,
             new JS.Identifier('arguments')
           ]);
         } else {
-          return new JS.CallExpression(memberAccess(new JS.FunctionExpression(null, [], new JS.BlockStatement(body)), 'call'), [new JS.ThisExpression]);
+          return new JS.CallExpression(memberAccess(funcExpr({ body: new JS.BlockStatement(body) }), 'call'), [new JS.ThisExpression]);
         }
       }
     ],
@@ -1068,13 +1509,14 @@ exports.Compiler = function () {
           }
         };
         return function (param$) {
-          var cache$2, compile, grouped, members;
+          var cache$2, compile, grouped, members, options;
           {
             cache$2 = param$;
             members = cache$2.members;
             compile = cache$2.compile;
+            options = cache$2.options;
           }
-          if (any(members, function (m) {
+          if (!options.targetES6 && any(members, function (m) {
               return m.spread;
             })) {
             grouped = map(groupMembers(members), expr);
@@ -1084,7 +1526,9 @@ exports.Compiler = function () {
               return new JS.CallExpression(memberAccess(grouped[0], 'concat'), grouped.slice(1));
             }
           } else {
-            return new JS.ArrayExpression(map(members, expr));
+            return new JS.ArrayExpression(map(members, function (m) {
+              return expr(m.spread ? new JS.SpreadElement(m.expression) : m);
+            }));
           }
         };
       }()
@@ -1143,32 +1587,39 @@ exports.Compiler = function () {
       CS.BoundFunction,
       function () {
         var handleParam;
-        handleParam = function (param, original, block, inScope) {
-          var decls, p;
+        handleParam = function (param, original, block, inScope, options) {
+          var decls, p, pattern;
           switch (false) {
           case !original['instanceof'](CS.Rest):
             return param;
           case !original['instanceof'](CS.Identifier):
             return param;
           case !original['instanceof'](CS.MemberAccessOps, CS.ObjectInitialiser, CS.ArrayInitialiser):
-            p = genSym('param');
-            decls = map(intersect(inScope, beingDeclared(original)), function (i) {
-              return new JS.Identifier(i);
-            });
-            block.body.unshift(stmt(assignment(param, p)));
-            if (decls.length)
-              block.body.unshift(makeVarDeclaration(decls));
-            return p;
+            if (options.targetES6 && (pattern = es6AssignmentPattern(param))) {
+              return pattern;
+            } else {
+              p = genSym('param');
+              decls = map(intersect(inScope, beingDeclared(original)), function (i) {
+                return new JS.Identifier(i);
+              });
+              block.body.unshift(stmt(assignment(param, p, options)));
+              if (decls.length) {
+                block.body.unshift(makeVarDeclaration(decls));
+              }
+              return p;
+            }
           case !original['instanceof'](CS.DefaultParam):
-            p = handleParam.call(this, param.param, original.param, block, inScope);
-            block.body.unshift(new JS.IfStatement(new JS.BinaryExpression('==', new JS.Literal(null), p), stmt(assignment(p, param['default']))));
+            p = handleParam.call(this, param.param, original.param, block, inScope, options);
+            if (!options.targetES6) {
+              block.body.unshift(new JS.IfStatement(new JS.BinaryExpression('==', new JS.Literal(null), p), stmt(assignment(p, param['default'], options))));
+            }
             return p;
           default:
             throw new Error('Unsupported parameter type: ' + original.className);
           }
         };
         return function (param$) {
-          var alternate, ancestry, block, cache$2, consequent, i, index, inScope, last, newThis, numArgs, numParams, p, parameters_, paramName, performedRewrite, pIndex, reassignments, rewriteThis, test;
+          var alternate, ancestry, arrow, block, cache$2, consequent, defaults, expression, i, index, inScope, last, newThis, numArgs, numParams, options, p, parameters_, paramName, performedRewrite, pIndex, reassignments, rest, rewriteThis, sym, test;
           var body, parameters;
           {
             cache$2 = param$;
@@ -1176,30 +1627,52 @@ exports.Compiler = function () {
             body = cache$2.body;
             ancestry = cache$2.ancestry;
             inScope = cache$2.inScope;
+            options = cache$2.options;
           }
-          if (!(null != ancestry[0] ? ancestry[0]['instanceof'](CS.Constructor) : void 0))
+          if (!(null != ancestry[0] ? ancestry[0]['instanceof'](CS.Constructor) : void 0)) {
             body = makeReturn(body);
+          }
           block = forceBlock(body);
           last = block.body.slice(-1)[0];
-          if ((null != last ? last['instanceof'](JS.ReturnStatement) : void 0) && !(null != last.argument))
+          if ((null != last ? last['instanceof'](JS.ReturnStatement) : void 0) && !(null != last.argument)) {
             block.body = block.body.slice(0, -1);
+          }
+          defaults = options.targetES6 ? zip(parameters, this.parameters).map(function (param$1) {
+            var cache$3, original, param;
+            {
+              cache$3 = param$1;
+              param = cache$3[0];
+              original = cache$3[1];
+            }
+            if (original instanceof CS.DefaultParam) {
+              return param['default'];
+            } else {
+              return null;
+            }
+          }) : [];
           parameters_ = parameters.length === 0 ? [] : (pIndex = parameters.length, function (accum$) {
             while (pIndex--) {
-              accum$.push(handleParam.call(this, parameters[pIndex], this.parameters[pIndex], block, inScope));
+              accum$.push(handleParam.call(this, parameters[pIndex], this.parameters[pIndex], block, inScope, options));
             }
             return accum$;
           }.call(this, []));
           parameters = parameters_.reverse();
           if (parameters.length > 0) {
             if (parameters.slice(-1)[0].rest) {
-              paramName = parameters.pop().expression;
-              numParams = parameters.length;
-              test = new JS.BinaryExpression('>', memberAccess(new JS.Identifier('arguments'), 'length'), new JS.Literal(numParams));
-              consequent = helpers.slice(new JS.Identifier('arguments'), new JS.Literal(numParams));
-              alternate = new JS.ArrayExpression([]);
-              if (paramName['instanceof'](JS.Identifier) && in$(paramName.name, inScope))
-                block.body.unshift(makeVarDeclaration([paramName]));
-              block.body.unshift(stmt(new JS.AssignmentExpression('=', paramName, new JS.ConditionalExpression(test, consequent, alternate))));
+              if (options.targetES6) {
+                expression = parameters.pop().expression;
+                rest = expression instanceof JS.Identifier ? new JS.Identifier(expression.name) : (sym = genSym('rest'), block.body.unshift(stmt(new JS.AssignmentExpression('=', expression, sym))), sym);
+              } else {
+                paramName = parameters.pop().expression;
+                numParams = parameters.length;
+                test = new JS.BinaryExpression('>', memberAccess(new JS.Identifier('arguments'), 'length'), new JS.Literal(numParams));
+                consequent = helpers.slice(new JS.Identifier('arguments'), new JS.Literal(numParams));
+                alternate = new JS.ArrayExpression([]);
+                if (paramName['instanceof'](JS.Identifier) && in$(paramName.name, inScope)) {
+                  block.body.unshift(makeVarDeclaration([paramName]));
+                }
+                block.body.unshift(stmt(new JS.AssignmentExpression('=', paramName, new JS.ConditionalExpression(test, consequent, alternate))));
+              }
             } else if (any(parameters, function (p) {
                 return p.rest;
               })) {
@@ -1214,6 +1687,7 @@ exports.Compiler = function () {
                 break;
               }
               parameters.splice(index, 1);
+              defaults.splice(index, 1);
               numParams = parameters.length;
               numArgs = genSym('numArgs');
               reassignments = new JS.IfStatement(new JS.BinaryExpression('>', new JS.AssignmentExpression('=', numArgs, memberAccess(new JS.Identifier('arguments'), 'length')), new JS.Literal(numParams)), new JS.BlockStatement([stmt(new JS.AssignmentExpression('=', paramName, helpers.slice(new JS.Identifier('arguments'), new JS.Literal(index), new JS.BinaryExpression('-', numArgs, new JS.Literal(numParams - index)))))]), new JS.BlockStatement([stmt(new JS.AssignmentExpression('=', paramName, new JS.ArrayExpression([])))]));
@@ -1222,33 +1696,47 @@ exports.Compiler = function () {
                 i = i$1;
                 reassignments.consequent.body.push(stmt(new JS.AssignmentExpression('=', p, new JS.MemberExpression(true, new JS.Identifier('arguments'), new JS.BinaryExpression('-', numArgs, new JS.Literal(numParams - index - i))))));
               }
-              if (paramName['instanceof'](JS.Identifier) && in$(paramName.name, inScope))
+              if (paramName['instanceof'](JS.Identifier) && in$(paramName.name, inScope)) {
                 block.body.unshift(makeVarDeclaration([paramName]));
+              }
               block.body.unshift(reassignments);
             }
             if (any(parameters, function (p) {
                 return p.rest;
-              }))
+              })) {
               throw new Error('Parameter lists may not have more than one rest operator');
+            }
           }
           performedRewrite = false;
           if (this['instanceof'](CS.BoundFunction)) {
-            newThis = genSym('this');
-            rewriteThis = generateMutatingWalker(function () {
-              if (this['instanceof'](JS.ThisExpression)) {
-                performedRewrite = true;
-                return newThis;
-              } else if (this['instanceof'](JS.FunctionExpression, JS.FunctionDeclaration)) {
-                return this;
-              } else {
-                return rewriteThis(this);
-              }
-            });
-            rewriteThis(block);
+            if (options.targetES6 && (arrow = es6SafeArrowExpression(parameters, defaults, rest, block))) {
+              return arrow;
+            } else {
+              newThis = genSym('this');
+              rewriteThis = generateMutatingWalker(function () {
+                if (this['instanceof'](JS.ThisExpression)) {
+                  performedRewrite = true;
+                  return newThis;
+                } else if (this['instanceof'](JS.FunctionExpression, JS.FunctionDeclaration)) {
+                  return this;
+                } else {
+                  return rewriteThis(this);
+                }
+              });
+              rewriteThis(block);
+            }
           }
-          fn = new JS.FunctionExpression(null, parameters, block);
+          fn = funcExpr({
+            params: parameters,
+            defaults: defaults,
+            rest: rest,
+            body: block
+          });
           if (performedRewrite) {
-            return new JS.CallExpression(new JS.FunctionExpression(null, [newThis], new JS.BlockStatement([new JS.ReturnStatement(fn)])), [new JS.ThisExpression]);
+            return new JS.CallExpression(funcExpr({
+              params: [newThis],
+              body: new JS.BlockStatement([new JS.ReturnStatement(fn)])
+            }), [new JS.ThisExpression]);
           } else {
             return fn;
           }
@@ -1258,8 +1746,12 @@ exports.Compiler = function () {
     [
       CS.Rest,
       function (param$) {
-        var expression;
-        expression = param$.expression;
+        var cache$2, expression, options;
+        {
+          cache$2 = param$;
+          expression = cache$2.expression;
+          options = cache$2.options;
+        }
         return {
           rest: true,
           expression: expression,
@@ -1271,7 +1763,7 @@ exports.Compiler = function () {
     [
       CS.Class,
       function (param$) {
-        var _, args, block, body, c, cache$2, compile, ctorBody, ctorIndex, ctorRef, i, iife, instance, member, memberName, nameAssignee, params, parent, parentRef, protoAssignOp, protoMember, ps, rewriteThis;
+        var _, ancestry, args, block, body, c, cache$2, cache$3, classAssignment, classExpression, classIdentifier, compile, ctorBody, ctorIndex, ctorRef, helper, i, iife, instance, member, memberName, methods, nameAssignee, options, params, parent, parentIdentifier, parentRef, properties, protoAssignOp, protoMember, ps, rewriteThis, unmatched;
         var ctor, name;
         {
           cache$2 = param$;
@@ -1281,13 +1773,48 @@ exports.Compiler = function () {
           ctor = cache$2.ctor;
           body = cache$2.body;
           compile = cache$2.compile;
+          options = cache$2.options;
+          ancestry = cache$2.ancestry;
+        }
+        if (options.targetES6) {
+          if (parent) {
+            parentIdentifier = new JS.Identifier(parent.name);
+          }
+          classIdentifier = name.name ? new JS.Identifier(name.name) : genSym('klass');
+          cache$3 = findES6Methods(classIdentifier, ctor, null != parent, forceBlock(body));
+          methods = cache$3.methods;
+          properties = cache$3.properties;
+          unmatched = cache$3.unmatched;
+          if (this.ctor && !this.ctor.expression['instanceof'](CS.Functions)) {
+            debugES6('' + describeClass(name, ancestry[0]) + ' was not converted to ES6 because its constructor is not a function expression.');
+          } else if (this.boundMembers.length > 0) {
+            debugES6('' + describeClass(name, ancestry[0]) + ' was not converted to ES6 because it has bound function members.');
+          } else if (nameAssignee && !nameAssignee['instanceof'](JS.Identifier)) {
+            debugES6('' + describeClass(name, ancestry[0]) + " was not converted to ES6 because it's being assigned to a compound name.");
+          } else if (parent && !(parent instanceof JS.Identifier)) {
+            debugES6('' + describeClass(name, ancestry[0]) + ' was not converted to ES6 because it extends an expression.');
+          } else if (unmatched.length > 0) {
+            debugES6('' + describeClass(name, ancestry[0]) + " was not converted to ES6 because its body contains code that we couldn't map directly to methods, static methods, prototype properties, or class properties.");
+          } else {
+            classExpression = new JS.ClassExpression(classIdentifier instanceof JS.GenSym ? null : classIdentifier, parentIdentifier, new JS.ClassBody(methods));
+            classAssignment = new JS.AssignmentExpression('=', classIdentifier, classExpression);
+            return properties.length === 0 ? classIdentifier instanceof JS.GenSym ? classExpression : (classAssignment.becomeStatement = function () {
+              var statement;
+              statement = new JS.ClassDeclaration(classIdentifier, parentIdentifier, new JS.ClassBody(methods));
+              statement.becomeExpression = function () {
+                return classAssignment;
+              };
+              return statement;
+            }, classAssignment) : (block = new JS.BlockStatement([stmt(classAssignment)].concat(map(properties, stmt)).concat(makeReturn(classIdentifier))), new JS.CallExpression(funcExpr({ body: block }).g(), []));
+          }
         }
         args = [];
         params = [];
         parentRef = genSym('super');
         block = forceBlock(body);
-        if (name['instanceof'](JS.Identifier) && in$(name.name, jsReserved))
+        if (name['instanceof'](JS.Identifier) && in$(name.name, jsReserved)) {
           name = genSym(name.name);
+        }
         if (null != ctor) {
           for (var i$ = 0, length$ = block.body.length; i$ < length$; ++i$) {
             c = block.body[i$];
@@ -1300,12 +1827,16 @@ exports.Compiler = function () {
           block.body.splice(ctorIndex, 1, ctor);
         } else {
           ctorBody = new JS.BlockStatement([]);
-          if (null != parent)
+          if (null != parent) {
             ctorBody.body.push(stmt(new JS.CallExpression(memberAccess(parentRef, 'apply'), [
               new JS.ThisExpression,
               new JS.Identifier('arguments')
             ])));
-          ctor = new JS.FunctionDeclaration(name, [], ctorBody);
+          }
+          ctor = funcDecl({
+            id: name,
+            body: ctorBody
+          });
           ctorIndex = 0;
           block.body.unshift(ctor);
         }
@@ -1332,10 +1863,13 @@ exports.Compiler = function () {
             }.call(this, []);
             member = memberAccess(new JS.ThisExpression, memberName);
             protoMember = memberAccess(memberAccess(name, 'prototype'), memberName);
-            fn = new JS.FunctionExpression(null, ps, new JS.BlockStatement([makeReturn(new JS.CallExpression(memberAccess(protoMember, 'apply'), [
-                instance,
-                new JS.Identifier('arguments')
-              ]))]));
+            fn = funcExpr({
+              params: ps,
+              body: new JS.BlockStatement([makeReturn(new JS.CallExpression(memberAccess(protoMember, 'apply'), [
+                  instance,
+                  new JS.Identifier('arguments')
+                ]))])
+            });
             ctor.body.body.unshift(stmt(new JS.AssignmentExpression('=', member, fn)));
           }
           ctor.body.body.unshift(stmt(new JS.AssignmentExpression('=', instance, new JS.ThisExpression)));
@@ -1343,7 +1877,8 @@ exports.Compiler = function () {
         if (null != parent) {
           params.push(parentRef);
           args.push(parent);
-          block.body.unshift(stmt(helpers['extends'](name, parentRef)));
+          helper = options.targetES6 ? 'extendsES6' : 'extends';
+          block.body.unshift(stmt(helpers[helper](name, parentRef)));
         }
         block.body.push(new JS.ReturnStatement(new JS.ThisExpression));
         rewriteThis = generateMutatingWalker(function () {
@@ -1356,9 +1891,12 @@ exports.Compiler = function () {
           }
         });
         rewriteThis(block);
-        iife = new JS.CallExpression(new JS.FunctionExpression(null, params, block).g(), args);
+        iife = new JS.CallExpression(funcExpr({
+          params: params,
+          body: block
+        }).g(), args);
         if (null != nameAssignee) {
-          return assignment(nameAssignee, iife);
+          return assignment(nameAssignee, iife, options);
         } else {
           return iife;
         }
@@ -1371,9 +1909,18 @@ exports.Compiler = function () {
         expression = param$.expression;
         tmpName = genSym('class');
         if (this.expression['instanceof'](CS.Functions)) {
-          return new JS.FunctionDeclaration(tmpName, expression.params, forceBlock(expression.body));
+          return funcDecl({
+            id: tmpName,
+            params: expression.params,
+            defaults: expression.defaults,
+            rest: expression.rest,
+            body: forceBlock(expression.body)
+          });
         } else {
-          return new JS.FunctionDeclaration(tmpName, [], new JS.BlockStatement([]));
+          return funcDecl({
+            id: tmpName,
+            body: new JS.BlockStatement([])
+          });
         }
       }
     ],
@@ -1398,14 +1945,15 @@ exports.Compiler = function () {
     [
       CS.AssignOp,
       function (param$) {
-        var ancestry, assignee, cache$2, expression;
+        var ancestry, assignee, cache$2, expression, options;
         {
           cache$2 = param$;
           assignee = cache$2.assignee;
           expression = cache$2.expression;
           ancestry = cache$2.ancestry;
+          options = cache$2.options;
         }
-        return assignment(assignee, expression, usedAsExpression(this, ancestry));
+        return assignment(assignee, expression, options, usedAsExpression(this, ancestry));
       }
     ],
     [
@@ -1454,8 +2002,9 @@ exports.Compiler = function () {
             throw new Error('Unrecognised compound assignment operator');
           }
         }.call(this);
-        if ((op === '&&' || op === '||' || op === '?') && assignee['instanceof'](JS.Identifier) && !in$(assignee.name, inScope))
+        if ((op === '&&' || op === '||' || op === '?') && assignee['instanceof'](JS.Identifier) && !in$(assignee.name, inScope)) {
           throw new Error('the variable "' + assignee.name + '" can\'t be assigned with ?= because it has not been defined.');
+        }
         switch (op) {
         case '&&':
         case '||':
@@ -1479,8 +2028,9 @@ exports.Compiler = function () {
           expression = cache$2.expression;
           compile = cache$2.compile;
         }
-        if (!this.expression.left['instanceof'](CS.ComparisonOps))
+        if (!this.expression.left['instanceof'](CS.ComparisonOps)) {
           return expression;
+        }
         left = expression.left.right;
         lhs = compile(new CS.ChainedComparisonOp(this.expression.left));
         if (needsCaching(this.expression.left.right)) {
@@ -1494,18 +2044,103 @@ exports.Compiler = function () {
         return new JS.LogicalExpression('&&', lhs, new JS.BinaryExpression(expression.operator, left, expression.right));
       }
     ],
+    [
+      CS.Super,
+      function (param$) {
+        var ancestry, args, cache$2, calledExprs, classAssignNode, className, classNode, classPositionInAncestry, compile, functionName, inScope, isProtoMemberAccess, isStatic, options, tagForES6;
+        {
+          cache$2 = param$;
+          args = cache$2['arguments'];
+          compile = cache$2.compile;
+          inScope = cache$2.inScope;
+          ancestry = cache$2.ancestry;
+          options = cache$2.options;
+        }
+        tagForES6 = function (node) {
+          node.toES6Super = function () {
+            var callee;
+            callee = functionName === 'constructor' ? new JS.Identifier('super') : memberAccess(new JS.Identifier('super'), functionName);
+            args = args.length > 0 ? map(args, expr) : [new JS.SpreadElement(new JS.Identifier('arguments'))];
+            return new JS.CallExpression(callee, args);
+          };
+          return node;
+        };
+        classNode = find(ancestry, function (node) {
+          return node instanceof CS.Class || node.assignee instanceof CS.ProtoMemberAccessOp;
+        });
+        classPositionInAncestry = ancestry.indexOf(classNode);
+        classAssignNode = ancestry[ancestry.indexOf(classNode) - 1];
+        className = null;
+        functionName = null;
+        isStatic = false;
+        isProtoMemberAccess = classNode.assignee instanceof CS.ProtoMemberAccessOp;
+        switch (false) {
+        case !(classNode instanceof CS.Class):
+          className = classNode.name.data;
+          functionName = function () {
+            var assignableNode, i, n, searchableNodes;
+            searchableNodes = [];
+            for (var i$ = 0, length$ = ancestry.length; i$ < length$; ++i$) {
+              i = ancestry[i$];
+              n = i$;
+              if (n === classPositionInAncestry) {
+                break;
+              }
+              searchableNodes.unshift(i);
+            }
+            assignableNode = find(searchableNodes, function (node) {
+              return null != node.assignee;
+            });
+            if (!(null != assignableNode)) {
+              return 'constructor';
+            }
+            switch (false) {
+            case !(assignableNode.assignee instanceof CS.MemberAccessOp):
+              isStatic = true;
+              return assignableNode.assignee.memberName;
+            case !(assignableNode.assignee instanceof CS.Identifier):
+              return assignableNode.assignee.data;
+            }
+          }();
+          break;
+        case !(classNode instanceof CS.AssignOp):
+          isStatic = false;
+          className = classNode.assignee.expression.data;
+          functionName = classNode.assignee.memberName;
+        }
+        if (className === 'class') {
+          if (args.length > 0) {
+            calledExprs = [new JS.ThisExpression].concat(map(args, expr));
+            return tagForES6(new JS.CallExpression(memberAccess(memberAccess(memberAccess(new JS.Identifier(classNode.parent.data), 'prototype'), functionName), 'call'), calledExprs));
+          } else {
+            return tagForES6(new JS.CallExpression(memberAccess(memberAccess(memberAccess(new JS.Identifier(classNode.parent.data), 'prototype'), functionName), 'apply'), [
+              new JS.ThisExpression,
+              new JS.Identifier('arguments')
+            ]));
+          }
+        }
+        return tagForES6(isStatic ? args.length === 0 ? new JS.CallExpression(memberAccess(memberAccess(memberAccess(memberAccess(new JS.Identifier(className), '__super__'), 'constructor'), functionName), 'apply'), [
+          new JS.ThisExpression,
+          new JS.Identifier('arguments')
+        ]) : (calledExprs = [new JS.ThisExpression].concat(map(args, expr)), new JS.CallExpression(memberAccess(memberAccess(memberAccess(memberAccess(new JS.Identifier(className), '__super__'), 'constructor'), functionName), 'call'), calledExprs)) : args.length === 0 ? new JS.CallExpression(memberAccess(memberAccess(memberAccess(new JS.Identifier(className), '__super__'), functionName), 'apply'), [
+          new JS.ThisExpression,
+          new JS.Identifier('arguments')
+        ]) : (calledExprs = [new JS.ThisExpression].concat(map(args, expr)), new JS.CallExpression(memberAccess(memberAccess(memberAccess(new JS.Identifier(className), '__super__'), functionName), 'call'), calledExprs)));
+      }
+    ],
     [
       CS.FunctionApplication,
       function (param$) {
-        var args, cache$2, compile, context, lhs;
+        var args, cache$2, compile, context, lhs, options;
         var fn;
         {
           cache$2 = param$;
           fn = cache$2['function'];
           args = cache$2['arguments'];
           compile = cache$2.compile;
+          options = cache$2.options;
         }
-        if (any(args, function (m) {
+        if (!options.targetES6 && any(args, function (m) {
             return m.spread;
           })) {
           lhs = this['function'];
@@ -1528,7 +2163,9 @@ exports.Compiler = function () {
         } else if (hasSoak(this)) {
           return compile(generateSoak(this));
         } else {
-          return new JS.CallExpression(expr(fn), map(args, expr));
+          return new JS.CallExpression(expr(fn), map(args, function (a) {
+            return expr(options.targetES6 && a.spread ? new JS.SpreadElement(a.expression) : a);
+          }));
         }
       }
     ],
@@ -1578,8 +2215,9 @@ exports.Compiler = function () {
               accum$.push(flag);
             }
             return accum$;
-          }.call(this, []).join(''))
+          }.call(this, []).join('')) {
           args.push(new JS.Literal(flags));
+        }
         return new JS.NewExpression(new JS.Identifier('RegExp'), args);
       }
     ],
@@ -1621,8 +2259,9 @@ exports.Compiler = function () {
           while (null != (null != leftmost.left ? leftmost.left.left : void 0)) {
             leftmost = leftmost.left;
           }
-          if (!(leftmost.left['instanceof'](JS.Literal) && 'string' === typeof leftmost.left.value))
+          if (!(leftmost.left['instanceof'](JS.Literal) && 'string' === typeof leftmost.left.value)) {
             leftmost.left = new JS.BinaryExpression('+', new JS.Literal(''), leftmost.left);
+          }
         }
         return plusOp;
       }
@@ -1641,7 +2280,7 @@ exports.Compiler = function () {
           return expr(compile(generateSoak(this)));
         } else {
           access = memberAccess(expression, this.memberName);
-          if (this.raw) {
+          if (this.raw && this.expression.raw) {
             access.property.raw = this.memberName;
             access.property.line = this.line;
             offset = this.raw.length - this.memberName.length;
@@ -1718,8 +2357,9 @@ exports.Compiler = function () {
           right = cache$2.right;
         }
         args = null != left ? [left] : null != right ? [new JS.Literal(0)] : [];
-        if (null != right)
+        if (null != right) {
           args.push(this.isInclusive ? right['instanceof'](JS.Literal) && typeof right.data === 'number' ? new JS.Literal(right.data + 1) : new JS.LogicalExpression('||', new JS.BinaryExpression('+', new JS.UnaryExpression('+', right), new JS.Literal(1)), new JS.Literal(9e9)) : right);
+        }
         return new JS.CallExpression(memberAccess(expression, 'slice'), args);
       }
     ],
@@ -1739,8 +2379,9 @@ exports.Compiler = function () {
         right = expr(right);
         e = needsCaching(this.left) ? genSym('cache') : left;
         condition = new JS.BinaryExpression('!=', new JS.Literal(null), e);
-        if (e['instanceof'](JS.Identifier) && !in$(e.name, inScope))
+        if (e['instanceof'](JS.Identifier) && !in$(e.name, inScope)) {
           condition = new JS.LogicalExpression('&&', new JS.BinaryExpression('!==', new JS.Literal('undefined'), new JS.UnaryExpression('typeof', e)), condition);
+        }
         node = new JS.ConditionalExpression(condition, e, right);
         if (e === left) {
           return node;
@@ -1931,7 +2572,9 @@ exports.Compiler = function () {
           left = cache$2.left;
           right = cache$2.right;
         }
-        if (right['instanceof'](JS.ArrayExpression) && right.elements.length < 5) {
+        if (right['instanceof'](JS.ArrayExpression) && right.elements.length < 5 && all(right.elements, function (elt) {
+            return !(elt instanceof JS.SpreadElement);
+          })) {
           switch (right.elements.length) {
           case 0:
             if (needsCaching(this.left)) {
@@ -1964,13 +2607,15 @@ exports.Compiler = function () {
     [
       CS.ExtendsOp,
       function (param$) {
-        var cache$2, left, right;
+        var cache$2, helper, left, options, right;
         {
           cache$2 = param$;
           left = cache$2.left;
           right = cache$2.right;
+          options = cache$2.options;
         }
-        return helpers['extends'](expr(left), expr(right));
+        helper = options.targetES6 ? 'extendsES6' : 'extends';
+        return helpers[helper](expr(left), expr(right));
       }
     ],
     [
@@ -2315,8 +2960,9 @@ exports.Compiler = function () {
     var defaultRule, generateSymbols, walk;
     walk = function (fn, inScope, ancestry, options) {
       var child, childName, children, jsNode, member;
-      if ((null != ancestry[0] ? ancestry[0]['instanceof'](CS.Function, CS.BoundFunction) : void 0) && this === ancestry[0].body)
+      if ((null != ancestry[0] ? ancestry[0]['instanceof'](CS.Function, CS.BoundFunction) : void 0) && this === ancestry[0].body) {
         inScope = union(inScope, concatMap(ancestry[0].parameters, beingDeclared));
+      }
       ancestry.unshift(this);
       children = {};
       for (var i$ = 0, length$ = this.childNodes.length; i$ < length$; ++i$) {
@@ -2326,18 +2972,18 @@ exports.Compiler = function () {
         children[childName] = in$(childName, this.listMembers) ? function (accum$) {
           for (var i$1 = 0, length$1 = this[childName].length; i$1 < length$1; ++i$1) {
             member = this[childName][i$1];
-            jsNode = walk.call(member, fn, inScope, ancestry);
+            jsNode = walk.call(member, fn, inScope, ancestry, options);
             inScope = union(inScope, envEnrichments(member, inScope));
             accum$.push(jsNode);
           }
           return accum$;
-        }.call(this, []) : (child = this[childName], jsNode = walk.call(child, fn, inScope, ancestry), inScope = union(inScope, envEnrichments(child, inScope)), jsNode);
+        }.call(this, []) : (child = this[childName], jsNode = walk.call(child, fn, inScope, ancestry, options), inScope = union(inScope, envEnrichments(child, inScope)), jsNode);
       }
       children.inScope = inScope;
       children.ancestry = ancestry;
       children.options = options;
       children.compile = function (node) {
-        return walk.call(node, fn, inScope, ancestry);
+        return walk.call(node, fn, inScope, ancestry, options);
       };
       ancestry.shift();
       jsNode = fn.call(this, children);
@@ -2387,7 +3033,7 @@ exports.Compiler = function () {
         declaredSymbols = cache$2.declaredSymbols;
         usedSymbols = cache$2.usedSymbols;
         nsCounters = cache$2.nsCounters;
-        newNode = this['instanceof'](JS.GenSym) ? (newNode = new JS.Identifier(generateName(this, state)), usedSymbols.push(newNode.name), newNode) : isScopeBoundary(this) ? (params = concatMap(this.params, collectIdentifiers), nsCounters_ = {}, function (accum$) {
+        newNode = this['instanceof'](JS.GenSym) ? (newNode = new JS.Identifier(generateName(this, state)), usedSymbols.push(newNode.name), newNode) : isDownwardScopeBoundary(this) ? (params = concatMap(this.params, collectIdentifiers), nsCounters_ = {}, function (accum$) {
           for (k in nsCounters) {
             if (!isOwn$(nsCounters, k))
               continue;
@@ -2413,10 +3059,11 @@ exports.Compiler = function () {
         program = generateChildSymbols(jsAST, state);
         if (program['instanceof'](JS.Program)) {
           needed = nub(difference(concatMap(program.body, declarationsNeededRecursive), inScope));
-          if (needed.length > 0)
+          if (needed.length > 0) {
             program.body.unshift(makeVarDeclaration(needed.map(function (n) {
               return new JS.Identifier(n);
             })));
+          }
         }
         return program;
       };
diff --git a/lib/functional-helpers.js b/lib/functional-helpers.js
index be170885..edd50c31 100644
--- a/lib/functional-helpers.js
+++ b/lib/functional-helpers.js
@@ -1,152 +1,186 @@
 // Generated by CoffeeScript 2.0.0-beta9-dev
 var concat, foldl, map, nub, span;
-this.any = function (list, fn) {
-  var e;
-  for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
-    e = list[i$];
-    if (fn(e))
-      return true;
-  }
-  return false;
-};
-this.all = function (list, fn) {
-  var e;
-  for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
-    e = list[i$];
-    if (!fn(e))
-      return false;
-  }
-  return true;
-};
-this.foldl = foldl = function (memo, list, fn) {
-  var i;
-  for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
-    i = list[i$];
-    memo = fn(memo, i);
-  }
-  return memo;
-};
-this.foldl1 = function (list, fn) {
-  return foldl(list[0], list.slice(1), fn);
-};
-this.map = map = function (list, fn) {
-  var e;
-  return function (accum$) {
+module.exports = {
+  any: function (list, fn) {
+    var e;
     for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
       e = list[i$];
-      accum$.push(fn(e));
+      if (fn(e)) {
+        return true;
+      }
     }
-    return accum$;
-  }.call(this, []);
-};
-this.concat = concat = function (list) {
-  var cache$;
-  return (cache$ = []).concat.apply(cache$, [].slice.call(list));
-};
-this.concatMap = function (list, fn) {
-  return concat(map(list, fn));
-};
-this.intersect = function (listA, listB) {
-  var a;
-  return function (accum$) {
-    for (var i$ = 0, length$ = listA.length; i$ < length$; ++i$) {
-      a = listA[i$];
-      if (!in$(a, listB))
-        continue;
-      accum$.push(a);
+    return false;
+  },
+  all: function (list, fn) {
+    var e;
+    for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
+      e = list[i$];
+      if (!fn(e)) {
+        return false;
+      }
     }
-    return accum$;
-  }.call(this, []);
-};
-this.difference = function (listA, listB) {
-  var a;
-  return function (accum$) {
-    for (var i$ = 0, length$ = listA.length; i$ < length$; ++i$) {
-      a = listA[i$];
-      if (!!in$(a, listB))
-        continue;
-      accum$.push(a);
+    return true;
+  },
+  find: function (list, fn) {
+    var e;
+    for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
+      e = list[i$];
+      if (fn(e)) {
+        return e;
+      }
     }
-    return accum$;
-  }.call(this, []);
-};
-this.nub = nub = function (list) {
-  var i, result;
-  result = [];
-  for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
-    i = list[i$];
-    if (!!in$(i, result))
-      continue;
-    result.push(i);
-  }
-  return result;
-};
-this.union = function (listA, listB) {
-  var b;
-  return listA.concat(function (accum$) {
-    for (var cache$ = nub(listB), i$ = 0, length$ = cache$.length; i$ < length$; ++i$) {
-      b = cache$[i$];
-      if (!!in$(b, listA))
+    return null;
+  },
+  foldl: foldl = function (memo, list, fn) {
+    var i;
+    for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
+      i = list[i$];
+      memo = fn(memo, i);
+    }
+    return memo;
+  },
+  foldl1: function (list, fn) {
+    return foldl(list[0], list.slice(1), fn);
+  },
+  map: map = function (list, fn) {
+    var e;
+    return function (accum$) {
+      for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
+        e = list[i$];
+        accum$.push(fn(e));
+      }
+      return accum$;
+    }.call(this, []);
+  },
+  concat: concat = function (list) {
+    var cache$;
+    return (cache$ = []).concat.apply(cache$, [].slice.call(list));
+  },
+  concatMap: function (list, fn) {
+    return concat(map(list, fn));
+  },
+  intersect: function (listA, listB) {
+    var a;
+    return function (accum$) {
+      for (var i$ = 0, length$ = listA.length; i$ < length$; ++i$) {
+        a = listA[i$];
+        if (!in$(a, listB))
+          continue;
+        accum$.push(a);
+      }
+      return accum$;
+    }.call(this, []);
+  },
+  difference: function (listA, listB) {
+    var a;
+    return function (accum$) {
+      for (var i$ = 0, length$ = listA.length; i$ < length$; ++i$) {
+        a = listA[i$];
+        if (!!in$(a, listB))
+          continue;
+        accum$.push(a);
+      }
+      return accum$;
+    }.call(this, []);
+  },
+  nub: nub = function (list) {
+    var i, result;
+    result = [];
+    for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
+      i = list[i$];
+      if (!!in$(i, result))
         continue;
-      accum$.push(b);
+      result.push(i);
     }
-    return accum$;
-  }.call(this, []));
-};
-this.flip = function (fn) {
-  return function (b, a) {
-    return fn.call(this, a, b);
-  };
-};
-this.owns = function (hop) {
-  return function (a, b) {
-    return hop.call(a, b);
-  };
-}({}.hasOwnProperty);
-this.span = span = function (list, f) {
-  var cache$, ys, zs;
-  if (list.length === 0) {
-    return [
-      [],
-      []
-    ];
-  } else if (f(list[0])) {
-    cache$ = span(list.slice(1), f);
-    ys = cache$[0];
-    zs = cache$[1];
+    return result;
+  },
+  union: function (listA, listB) {
+    var b;
+    return listA.concat(function (accum$) {
+      for (var cache$ = nub(listB), i$ = 0, length$ = cache$.length; i$ < length$; ++i$) {
+        b = cache$[i$];
+        if (!!in$(b, listA))
+          continue;
+        accum$.push(b);
+      }
+      return accum$;
+    }.call(this, []));
+  },
+  flip: function (fn) {
+    return function (b, a) {
+      return fn.call(this, a, b);
+    };
+  },
+  owns: function (hop) {
+    return function (a, b) {
+      return hop.call(a, b);
+    };
+  }({}.hasOwnProperty),
+  span: span = function (list, f) {
+    var cache$, ys, zs;
+    if (list.length === 0) {
+      return [
+        [],
+        []
+      ];
+    } else if (f(list[0])) {
+      cache$ = span(list.slice(1), f);
+      ys = cache$[0];
+      zs = cache$[1];
+      return [
+        [list[0]].concat([].slice.call(ys)),
+        zs
+      ];
+    } else {
+      return [
+        [],
+        list
+      ];
+    }
+  },
+  divMod: function (a, b) {
+    var c, div, mod;
+    c = a % b;
+    mod = c < 0 ? c + b : c;
+    div = Math.floor(a / b);
     return [
-      [list[0]].concat([].slice.call(ys)),
-      zs
+      div,
+      mod
     ];
-  } else {
-    return [
+  },
+  partition: function (list, fn) {
+    var item, result;
+    result = [
       [],
-      list
+      []
     ];
+    for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
+      item = list[i$];
+      result[+!fn(item)].push(item);
+    }
+    return result;
+  },
+  zip: function (listA, listB) {
+    var i, len;
+    len = Math.max(listA.length, listB.length);
+    return function (accum$) {
+      for (var cache$ = function () {
+            var accum$1;
+            accum$1 = [];
+            for (var i$ = 0; 0 <= len ? i$ < len : i$ > len; 0 <= len ? ++i$ : --i$)
+              accum$1.push(i$);
+            return accum$1;
+          }.apply(this, arguments), i$ = 0, length$ = cache$.length; i$ < length$; ++i$) {
+        i = cache$[i$];
+        accum$.push([
+          listA[i],
+          listB[i]
+        ]);
+      }
+      return accum$;
+    }.call(this, []);
   }
 };
-this.divMod = function (a, b) {
-  var c, div, mod;
-  c = a % b;
-  mod = c < 0 ? c + b : c;
-  div = Math.floor(a / b);
-  return [
-    div,
-    mod
-  ];
-};
-this.partition = function (list, fn) {
-  var item, result;
-  result = [
-    [],
-    []
-  ];
-  for (var i$ = 0, length$ = list.length; i$ < length$; ++i$) {
-    item = list[i$];
-    result[+!fn(item)].push(item);
-  }
-  return result;
-};
 function in$(member, list) {
   for (var i = 0, length = list.length; i < length; ++i)
     if (i in list && list[i] === member)
diff --git a/lib/helpers.js b/lib/helpers.js
index 54777ba9..c08f13d0 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -24,7 +24,7 @@ colourise = function (colour, str) {
     return str;
   }
 };
-this.numberLines = numberLines = function (input, startLine) {
+exports.numberLines = numberLines = function (input, startLine) {
   var currLine, i, line, lines, numbered, pad, padSize;
   if (null == startLine)
     startLine = 1;
@@ -45,32 +45,49 @@ this.numberLines = numberLines = function (input, startLine) {
 cleanMarkers = function (str) {
   return str.replace(/[\uEFEF\uEFFE\uEFFF]/g, '');
 };
-this.humanReadable = humanReadable = function (str) {
+exports.humanReadable = humanReadable = function (str) {
   return str.replace(/\uEFEF/g, '(INDENT)').replace(/\uEFFE/g, '(DEDENT)').replace(/\uEFFF/g, '(TERM)');
 };
-this.formatParserError = function (input, e) {
-  var found, message, realColumn, unicode;
-  realColumn = cleanMarkers(('' + input.split('\n')[e.line - 1] + '\n').slice(0, e.column)).length;
-  if (!(null != e.found))
-    return 'Syntax error on line ' + e.line + ', column ' + realColumn + ': unexpected end of input';
+exports.formatParserError = function (input, e) {
+  var column, found, line, lines, message, offset, realColumn, unicode;
+  lines = input.split('\n');
+  line = e.line - 1;
+  column = e.column;
+  offset = e.offset;
+  while (offset > 0) {
+    if (offset > lines[line].length + 1) {
+      offset -= lines[line].length + 1;
+      line += 1;
+    } else {
+      column += offset;
+      offset = 0;
+    }
+  }
+  realColumn = cleanMarkers(('' + lines[line] + '\n').slice(0, column)).length;
+  line += 1;
+  if (!(null != e.found)) {
+    return 'Syntax error on line ' + line + ', column ' + realColumn + ': unexpected end of input';
+  }
   found = JSON.stringify(humanReadable(e.found));
   found = found.replace(/^"|"$/g, '').replace(/'/g, "\\'").replace(/\\"/g, '"');
   unicode = e.found.charCodeAt(0).toString(16).toUpperCase();
   unicode = '\\u' + '0000'.slice(unicode.length) + unicode;
-  message = 'Syntax error on line ' + e.line + ', column ' + realColumn + ": unexpected '" + found + "' (" + unicode + ')';
-  return '' + message + '\n' + pointToErrorLocation(input, e.line, realColumn);
+  message = 'Syntax error on line ' + line + ', column ' + realColumn + ": unexpected '" + found + "' (" + unicode + ')';
+  return '' + message + '\n' + pointToErrorLocation(input, line, realColumn);
 };
-this.pointToErrorLocation = pointToErrorLocation = function (source, line, column, numLinesOfContext) {
+exports.pointToErrorLocation = pointToErrorLocation = function (source, line, column, numLinesOfContext) {
   var currentLineOffset, lines, numberedLines, padSize, postLines, preLines, startLine;
   if (null == numLinesOfContext)
     numLinesOfContext = 3;
   lines = source.split('\n');
-  if (!lines[lines.length - 1])
+  if (!lines[lines.length - 1]) {
     lines.pop();
+  }
   currentLineOffset = line - 1;
   startLine = currentLineOffset - numLinesOfContext;
-  if (startLine < 0)
+  if (startLine < 0) {
     startLine = 0;
+  }
   preLines = lines.slice(startLine, +currentLineOffset + 1 || 9e9);
   preLines[preLines.length - 1] = colourise('yellow', preLines[preLines.length - 1]);
   postLines = lines.slice(currentLineOffset + 1, +(currentLineOffset + numLinesOfContext) + 1 || 9e9);
@@ -81,7 +98,7 @@ this.pointToErrorLocation = pointToErrorLocation = function (source, line, colum
   padSize = (currentLineOffset + 1 + postLines.length).toString(10).length;
   return [].slice.call(preLines).concat(['' + colourise('red', Array(padSize + 1).join('^')) + ' : ' + Array(column).join(' ') + colourise('red', '^')], [].slice.call(postLines)).join('\n');
 };
-this.beingDeclared = beingDeclared = function (assignment) {
+exports.beingDeclared = beingDeclared = function (assignment) {
   switch (false) {
   case !!(null != assignment):
     return [];
@@ -101,7 +118,7 @@ this.beingDeclared = beingDeclared = function (assignment) {
     throw new Error('beingDeclared: Non-exhaustive patterns in case: ' + assignment.className);
   }
 };
-this.declarationsFor = function (node, inScope) {
+exports.declarationsFor = function (node, inScope) {
   var vars;
   vars = envEnrichments(node, inScope);
   return foldl(new CS.Undefined().g(), vars, function (expr, v) {
@@ -127,7 +144,7 @@ usedAsExpression_ = function (ancestors) {
     return true;
   }
 };
-this.usedAsExpression = usedAsExpression = function (node, ancestors) {
+exports.usedAsExpression = usedAsExpression = function (node, ancestors) {
   return usedAsExpression_.call(node, ancestors);
 };
 envEnrichments_ = function (inScope) {
@@ -180,7 +197,7 @@ envEnrichments_ = function (inScope) {
   }.call(this));
   return difference(possibilities, inScope);
 };
-this.envEnrichments = envEnrichments = function (node) {
+exports.envEnrichments = envEnrichments = function (node) {
   var args;
   args = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
   if (null != node) {
diff --git a/lib/js-nodes.js b/lib/js-nodes.js
index fdfe45a3..582ade4e 100644
--- a/lib/js-nodes.js
+++ b/lib/js-nodes.js
@@ -1,5 +1,5 @@
 // Generated by CoffeeScript 2.0.0-beta9-dev
-var ArrayExpression, AssignmentExpression, BinaryExpression, BlockStatement, cache$, cache$1, CallExpression, createNode, ctor, difference, exports, FunctionDeclaration, FunctionExpression, GenSym, handleLists, handlePrimitives, Identifier, isStatement, Literal, LogicalExpression, MemberExpression, NewExpression, node, nodeData, Nodes, ObjectExpression, params, Program, SequenceExpression, SwitchCase, SwitchStatement, TryStatement, UnaryExpression, UpdateExpression, VariableDeclaration;
+var ArrayExpression, ArrayPattern, ArrowFunctionExpression, AssignmentExpression, BinaryExpression, BlockStatement, cache$, cache$1, CallExpression, ClassBody, createNode, ctor, difference, exports, FunctionDeclaration, FunctionExpression, GenSym, handleLists, handlePrimitives, Identifier, isStatement, Literal, LogicalExpression, MemberExpression, NewExpression, node, nodeData, Nodes, ObjectExpression, ObjectPattern, params, Program, SequenceExpression, SwitchCase, SwitchStatement, TryStatement, UnaryExpression, UpdateExpression, VariableDeclaration;
 difference = require('./functional-helpers').difference;
 exports = null != ('undefined' !== typeof module && null != module ? module.exports : void 0) ? 'undefined' !== typeof module && null != module ? module.exports : void 0 : this;
 createNode = function (type, props) {
@@ -18,7 +18,7 @@ createNode = function (type, props) {
     return class$;
   }(Nodes);
 };
-this.Nodes = Nodes = function () {
+exports.Nodes = Nodes = function () {
   function Nodes() {
   }
   Nodes.prototype.listMembers = [];
@@ -34,10 +34,8 @@ this.Nodes = Nodes = function () {
     return false;
   };
   Nodes.prototype.toBasicObject = function () {
-    var child, obj, p;
+    var child, obj, p, property;
     obj = { type: this.type };
-    if (null != this.leadingComments)
-      obj.leadingComments = this.leadingComments;
     for (var i$ = 0, length$ = this.childNodes.length; i$ < length$; ++i$) {
       child = this.childNodes[i$];
       if (in$(child, this.listMembers)) {
@@ -52,22 +50,47 @@ this.Nodes = Nodes = function () {
         obj[child] = null != this[child] ? this[child].toBasicObject() : void 0;
       }
     }
-    if (null != this.line && null != this.column)
+    if (null != this.line && null != this.column) {
       obj.loc = {
         start: {
           line: this.line,
           column: this.column
         }
       };
-    if (null != this.offset)
+    }
+    if (null != this.offset) {
       obj.range = [
         this.offset,
         null != this.raw ? this.offset + this.raw.length : void 0
       ];
-    if (null != this.raw)
-      obj.raw = this.raw;
+    }
+    for (var cache$ = [
+          'leadingComments',
+          'raw',
+          'expression',
+          'generator',
+          'static',
+          'shorthand'
+        ], i$2 = 0, length$2 = cache$.length; i$2 < length$2; ++i$2) {
+      property = cache$[i$2];
+      if (null != this[property] && !in$(property, this.childNodes)) {
+        obj[property] = this[property];
+      }
+    }
     return obj;
   };
+  Nodes.prototype.shallowCopy = function () {
+    var c, k, v;
+    c = new this.constructor;
+    for (k in this) {
+      v = this[k];
+      if (k && in$(k, this.listMembers)) {
+        k = k.slice();
+      }
+      c[k] = v;
+    }
+    return c;
+  };
   return Nodes;
 }();
 nodeData = [
@@ -76,6 +99,21 @@ nodeData = [
     false,
     ['elements']
   ],
+  [
+    'ArrayPattern',
+    false,
+    ['elements']
+  ],
+  [
+    'ArrowFunctionExpression',
+    false,
+    [
+      'params',
+      'defaults',
+      'rest',
+      'body'
+    ]
+  ],
   [
     'AssignmentExpression',
     false,
@@ -120,6 +158,29 @@ nodeData = [
       'body'
     ]
   ],
+  [
+    'ClassBody',
+    true,
+    ['body']
+  ],
+  [
+    'ClassDeclaration',
+    true,
+    [
+      'id',
+      'superClass',
+      'body'
+    ]
+  ],
+  [
+    'ClassExpression',
+    false,
+    [
+      'id',
+      'superClass',
+      'body'
+    ]
+  ],
   [
     'ConditionalExpression',
     false,
@@ -166,6 +227,15 @@ nodeData = [
       'body'
     ]
   ],
+  [
+    'ForOfStatement',
+    true,
+    [
+      'left',
+      'right',
+      'body'
+    ]
+  ],
   [
     'ForStatement',
     true,
@@ -182,6 +252,8 @@ nodeData = [
     [
       'id',
       'params',
+      'defaults',
+      'rest',
       'body'
     ]
   ],
@@ -191,6 +263,8 @@ nodeData = [
     [
       'id',
       'params',
+      'defaults',
+      'rest',
       'body'
     ]
   ],
@@ -247,6 +321,14 @@ nodeData = [
       'property'
     ]
   ],
+  [
+    'MethodDefinition',
+    false,
+    [
+      'key',
+      'value'
+    ]
+  ],
   [
     'NewExpression',
     false,
@@ -260,6 +342,11 @@ nodeData = [
     false,
     ['properties']
   ],
+  [
+    'ObjectPattern',
+    false,
+    ['properties']
+  ],
   [
     'Program',
     true,
@@ -273,6 +360,11 @@ nodeData = [
       'value'
     ]
   ],
+  [
+    'RestElement',
+    true,
+    ['argument']
+  ],
   [
     'ReturnStatement',
     true,
@@ -283,6 +375,11 @@ nodeData = [
     false,
     ['expressions']
   ],
+  [
+    'SpreadElement',
+    false,
+    ['argument']
+  ],
   [
     'SwitchCase',
     true,
@@ -366,6 +463,11 @@ nodeData = [
       'object',
       'body'
     ]
+  ],
+  [
+    'YieldExpression',
+    false,
+    ['argument']
   ]
 ];
 for (var i$ = 0, length$ = nodeData.length; i$ < length$; ++i$) {
@@ -388,11 +490,13 @@ FunctionExpression = cache$1.FunctionExpression;
 CallExpression = cache$1.CallExpression;
 SequenceExpression = cache$1.SequenceExpression;
 ArrayExpression = cache$1.ArrayExpression;
+ArrayPattern = cache$1.ArrayPattern;
 BinaryExpression = cache$1.BinaryExpression;
 UnaryExpression = cache$1.UnaryExpression;
 NewExpression = cache$1.NewExpression;
 VariableDeclaration = cache$1.VariableDeclaration;
 ObjectExpression = cache$1.ObjectExpression;
+ObjectPattern = cache$1.ObjectPattern;
 MemberExpression = cache$1.MemberExpression;
 UpdateExpression = cache$1.UpdateExpression;
 AssignmentExpression = cache$1.AssignmentExpression;
@@ -403,6 +507,8 @@ VariableDeclaration = cache$1.VariableDeclaration;
 SwitchStatement = cache$1.SwitchStatement;
 SwitchCase = cache$1.SwitchCase;
 TryStatement = cache$1.TryStatement;
+ArrowFunctionExpression = cache$1.ArrowFunctionExpression;
+ClassBody = cache$1.ClassBody;
 handlePrimitives = function (ctor, primitives) {
   ctor.prototype.childNodes = difference(ctor.prototype.childNodes, primitives);
   return ctor.prototype.toBasicObject = function () {
@@ -435,12 +541,25 @@ handleLists = function (ctor, listProps) {
   return ctor.prototype.listMembers = listProps;
 };
 handleLists(ArrayExpression, ['elements']);
+handleLists(ArrayPattern, ['elements']);
+handleLists(ArrowFunctionExpression, [
+  'params',
+  'defaults'
+]);
 handleLists(BlockStatement, ['body']);
 handleLists(CallExpression, ['arguments']);
-handleLists(FunctionDeclaration, ['params']);
-handleLists(FunctionExpression, ['params']);
+handleLists(ClassBody, ['body']);
+handleLists(FunctionDeclaration, [
+  'params',
+  'defaults'
+]);
+handleLists(FunctionExpression, [
+  'params',
+  'defaults'
+]);
 handleLists(NewExpression, ['arguments']);
 handleLists(ObjectExpression, ['properties']);
+handleLists(ObjectPattern, ['properties']);
 handleLists(Program, ['body']);
 handleLists(SequenceExpression, ['expressions']);
 handleLists(SwitchCase, ['consequent']);
diff --git a/lib/module.js b/lib/module.js
index 3d13cc61..0245f1f3 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -47,7 +47,8 @@ CoffeeScript = {
       preprocessed = Preprocessor.process(coffee, { literate: options.literate });
       parsed = Parser.parse(preprocessed, {
         raw: options.raw,
-        inputSource: options.inputSource
+        inputSource: options.inputSource,
+        targetES6: options.targetES6
       });
       if (options.optimise) {
         return Optimiser.optimise(parsed);
@@ -56,8 +57,9 @@ CoffeeScript = {
       }
     } catch (e$2) {
       e = e$2;
-      if (!(e instanceof Parser.SyntaxError))
+      if (!(e instanceof Parser.SyntaxError)) {
         throw e;
+      }
       throw new Error(formatParserError(preprocessed, e));
     }
   },
@@ -72,10 +74,12 @@ CoffeeScript = {
       name = 'unknown';
     if (null == options)
       options = {};
-    if (!(null != escodegen))
+    if (!(null != escodegen)) {
       throw new Error('escodegen not found: run `npm install escodegen`');
-    if (!{}.hasOwnProperty.call(jsAst, 'type'))
+    }
+    if (!{}.hasOwnProperty.call(jsAst, 'type')) {
       jsAst = jsAst.toBasicObject();
+    }
     targetName = options.sourceMapFile || options.sourceMap && options.output.match(/^.*[\\\/]([^\\\/]+)$/)[1];
     return escodegen.generate(jsAst, {
       comment: !options.compact,
diff --git a/lib/nodes.js b/lib/nodes.js
index 6bf3a375..46dba57e 100644
--- a/lib/nodes.js
+++ b/lib/nodes.js
@@ -44,8 +44,9 @@ createNodes = function (subclasses, superclasses) {
             i = i$;
             this[param] = arguments[i];
           }
-          if (null != this.initialise)
+          if (null != this.initialise) {
             this.initialise.apply(this, arguments);
+          }
           return this;
         };
         function class$() {
@@ -55,10 +56,12 @@ createNodes = function (subclasses, superclasses) {
         class$.superclasses = superclasses;
         return class$;
       }(superclass);
-      if (null != ('undefined' !== typeof specs && null != specs ? specs[0] : void 0))
+      if (null != ('undefined' !== typeof specs && null != specs ? specs[0] : void 0)) {
         klass.prototype.childNodes = specs[0];
-      if (isCategory)
+      }
+      if (isCategory) {
         createNodes(specs[1], [klass].concat([].slice.call(superclasses)));
+      }
       return exports[className] = klass;
     }(className));
   }
@@ -368,17 +371,20 @@ Nodes.prototype.listMembers = [];
 Nodes.prototype.toBasicObject = function () {
   var child, obj, p;
   obj = { type: this.className };
-  if (null != this.line)
+  if (null != this.line) {
     obj.line = this.line;
-  if (null != this.column)
+  }
+  if (null != this.column) {
     obj.column = this.column;
+  }
   if (null != this.raw) {
     obj.raw = this.raw;
-    if (null != this.offset)
+    if (null != this.offset) {
       obj.range = [
         this.offset,
         this.offset + this.raw.length
       ];
+    }
   }
   for (var i$ = 0, length$ = this.childNodes.length; i$ < length$; ++i$) {
     child = this.childNodes[i$];
@@ -504,7 +510,7 @@ Class.prototype.initialise = function () {
   else
     this.boundMembers = [];
   this.name = new GenSym('class');
-  if (null != this.nameAssignee)
+  if (null != this.nameAssignee) {
     return this.name = function () {
       switch (false) {
       case !this.nameAssignee['instanceof'](Identifier):
@@ -515,6 +521,7 @@ Class.prototype.initialise = function () {
         return this.name;
       }
     }.call(this);
+  }
 };
 Class.prototype.childNodes.push('name');
 ObjectInitialiser.prototype.keys = function () {
diff --git a/lib/optimiser.js b/lib/optimiser.js
index 2d4efc24..588a2c7a 100644
--- a/lib/optimiser.js
+++ b/lib/optimiser.js
@@ -37,8 +37,9 @@ makeDispatcher = function (defaultValue, handlers, defaultHandler) {
   return function (node) {
     var args;
     args = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
-    if (!(null != node))
+    if (!(null != node)) {
       return defaultValue;
+    }
     handler = Object.prototype.hasOwnProperty.call(handlers_, node.className) ? handlers_[node.className] : defaultHandler;
     return handler.apply(node, args);
   };
@@ -284,8 +285,9 @@ mayHaveSideEffects = makeDispatcher(false, [
     CS.DoOp,
     function (inScope) {
       var args, newScope, p;
-      if (!this.expression['instanceof'](CS.Functions))
+      if (!this.expression['instanceof'](CS.Functions)) {
         return true;
+      }
       newScope = difference(inScope, concatMap(this.expression.parameters, beingDeclared));
       args = function (accum$) {
         for (var i$ = 0, length$ = this.expression.parameters.length; i$ < length$; ++i$) {
@@ -296,18 +298,21 @@ mayHaveSideEffects = makeDispatcher(false, [
       }.call(this, []);
       if (any(args, function (a) {
           return mayHaveSideEffects(a, newScope);
-        }))
+        })) {
         return true;
+      }
       return mayHaveSideEffects(this.expression.body, newScope);
     }
   ],
   [
     CS.ExistsOp,
     function (inScope) {
-      if (mayHaveSideEffects(this.left, inScope))
+      if (mayHaveSideEffects(this.left, inScope)) {
         return true;
-      if (this.left['instanceof'](CS.Undefined, CS.Null))
+      }
+      if (this.left['instanceof'](CS.Undefined, CS.Null)) {
         return false;
+      }
       return mayHaveSideEffects(this.right, inScope);
     }
   ],
@@ -316,33 +321,39 @@ mayHaveSideEffects = makeDispatcher(false, [
     CS.SoakedFunctionApplication,
     function (inScope) {
       var newScope;
-      if (!this['function']['instanceof'](CS.Function, CS.BoundFunction))
+      if (!this['function']['instanceof'](CS.Function, CS.BoundFunction)) {
         return true;
+      }
       newScope = difference(inScope, concatMap(this['function'].parameters, beingDeclared));
       if (any(this['arguments'], function (a) {
           return mayHaveSideEffects(a, newScope);
-        }))
+        })) {
         return true;
+      }
       return mayHaveSideEffects(this['function'].body, newScope);
     }
   ],
   [
     CS.LogicalAndOp,
     function (inScope) {
-      if (mayHaveSideEffects(this.left, inScope))
+      if (mayHaveSideEffects(this.left, inScope)) {
         return true;
-      if (isFalsey(this.left))
+      }
+      if (isFalsey(this.left)) {
         return false;
+      }
       return mayHaveSideEffects(this.right, inScope);
     }
   ],
   [
     CS.LogicalOrOp,
     function (inScope) {
-      if (mayHaveSideEffects(this.left, inScope))
+      if (mayHaveSideEffects(this.left, inScope)) {
         return true;
-      if (isTruthy(this.left))
+      }
+      if (isTruthy(this.left)) {
         return false;
+      }
       return mayHaveSideEffects(this.right, inScope);
     }
   ],
@@ -465,8 +476,9 @@ exports.Optimiser = function () {
     [
       CS.AssignOp,
       function () {
-        if (!this.expression['instanceof'](CS.SeqOp))
+        if (!this.expression['instanceof'](CS.SeqOp)) {
           return this;
+        }
         return new CS.SeqOp(this.expression.left, new CS.AssignOp(this.assignee, this.expression.right));
       }
     ],
@@ -523,8 +535,9 @@ exports.Optimiser = function () {
         }
         decls = declarationsFor(removedBlock, inScope);
         block = null != block ? new CS.SeqOp(decls, block) : decls;
-        if (mayHaveSideEffects(this.condition, inScope))
+        if (mayHaveSideEffects(this.condition, inScope)) {
           block = new CS.SeqOp(this.condition, block);
+        }
         return block;
       }
     ],
@@ -533,8 +546,9 @@ exports.Optimiser = function () {
       function (param$) {
         var inScope;
         inScope = param$.inScope;
-        if (!(this.target['instanceof'](CS.ArrayInitialiser) && this.target.members.length === 0))
+        if (!(this.target['instanceof'](CS.ArrayInitialiser) && this.target.members.length === 0)) {
           return this;
+        }
         return new CS.SeqOp(declarationsFor(this, inScope), new CS.ArrayInitialiser([]).g());
       }
     ],
@@ -543,8 +557,9 @@ exports.Optimiser = function () {
       function (param$) {
         var inScope;
         inScope = param$.inScope;
-        if (!(this.isOwn && this.target['instanceof'](CS.ObjectInitialiser) && this.target.members.length === 0))
+        if (!(this.isOwn && this.target['instanceof'](CS.ObjectInitialiser) && this.target.members.length === 0)) {
           return this;
+        }
         return new CS.SeqOp(declarationsFor(this, inScope), new CS.ArrayInitialiser([]).g());
       }
     ],
@@ -554,24 +569,27 @@ exports.Optimiser = function () {
       function (param$) {
         var inScope;
         inScope = param$.inScope;
-        if (!isFalsey(this.filter))
+        if (!isFalsey(this.filter)) {
           return this;
+        }
         return new CS.SeqOp(declarationsFor(this, inScope), new CS.ArrayInitialiser([]).g());
       }
     ],
     [
       CS.ForIn,
       function () {
-        if (!isTruthy(this.filter))
+        if (!isTruthy(this.filter)) {
           return this;
+        }
         return new CS.ForIn(this.valAssignee, this.keyAssignee, this.target, this.step, null, this.body);
       }
     ],
     [
       CS.ForOf,
       function () {
-        if (!isTruthy(this.filter))
+        if (!isTruthy(this.filter)) {
           return this;
+        }
         return new CS.ForOf(this.isOwn, this.keyAssignee, this.valAssignee, this.target, null, this.body);
       }
     ],
@@ -664,8 +682,9 @@ exports.Optimiser = function () {
       function (param$) {
         var ancestry;
         ancestry = param$.ancestry;
-        if (!((null != ancestry[0] ? ancestry[0]['instanceof'](CS.Functions) : void 0) && ancestry[0].body === this))
+        if (!((null != ancestry[0] ? ancestry[0]['instanceof'](CS.Functions) : void 0) && ancestry[0].body === this)) {
           return this;
+        }
         if (this.right['instanceof'](CS.Return) && null != this.right.expression) {
           return new CS.SeqOp(this.left, this.right.expression);
         } else if (this.right['instanceof'](CS.Undefined)) {
@@ -679,8 +698,9 @@ exports.Optimiser = function () {
       CS.Function,
       CS.BoundFunction,
       function () {
-        if (!(null != this.block && (this.block['instanceof'](CS.Undefined) || this.block['instanceof'](CS.Return) && !(null != this.block.expression))))
+        if (!(null != this.block && (this.block['instanceof'](CS.Undefined) || this.block['instanceof'](CS.Return) && !(null != this.block.expression)))) {
           return this;
+        }
         return new this.constructor(this.parameters, null);
       }
     ],
@@ -789,16 +809,19 @@ exports.Optimiser = function () {
       return walk.call(ast, function (param$) {
         var ancestry, memo, rule;
         ancestry = param$.ancestry;
-        if (!(null != this) || this === global)
+        if (!(null != this) || this === global) {
           throw new Error('Optimiser rules must produce a node. `null` is not a node.');
-        if (in$(this, ancestry))
+        }
+        if (in$(this, ancestry)) {
           return this;
+        }
         memo = this;
         for (var cache$2 = null != rules[memo.className] ? rules[memo.className] : [], i$ = 0, length$ = cache$2.length; i$ < length$; ++i$) {
           rule = cache$2[i$];
           memo = rule.apply(memo, arguments);
-          if (memo !== this)
+          if (memo !== this) {
             break;
+          }
         }
         return memo;
       });
diff --git a/lib/parser.js b/lib/parser.js
index 04dd514e..75c71bd2 100644
--- a/lib/parser.js
+++ b/lib/parser.js
@@ -78,8 +78,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c10 = function(left, right) {if (!right)
+        peg$c10 = function(left, right) {if (!right) {
           return left;
+        }
         return rp(new CS.SeqOp(left, right));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
@@ -405,8 +406,9 @@ module.exports = (function() {
         peg$c82 = /^[+-\/]/,
         peg$c83 = { type: "class", value: "[+-\\/]", description: "[+-\\/]" },
         peg$c84 = function(e, es, obj) {es.unshift(e);
-        if (null != obj)
+        if (null != obj) {
           es.push(obj);
+        }
         return es;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
@@ -427,15 +429,28 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c86 = function(fn, accesses, secondaryArgs) {var cache$, list, secondaryCtor, soaked;
-        if (null != accesses)
+        peg$c86 = function(accesses, secondaryArgs) {if (accesses) {
+          return rp(new CS.Super(accesses[0].operands[0]));
+        } else {
+          return rp(new CS.Super(secondaryArgs || []));
+        }
+        function isOwn$(o, p) {
+          return {}.hasOwnProperty.call(o, p);
+        }
+        function in$(member, list) {
+          for (var i = 0, length = list.length; i < length; ++i)
+            if (i in list && list[i] === member)
+              return true;
+          return false;
+        }},
+        peg$c87 = function(fn, accesses, secondaryArgs) {var secondaryCtor, soaked;
+        if (null != accesses) {
           fn = createMemberExpression(fn, accesses);
-        if (null != secondaryArgs) {
-          cache$ = secondaryArgs;
-          soaked = cache$[0];
-          list = cache$[1];
+        }
+        if (secondaryArgs) {
+          soaked = secondaryArgs[0];
           secondaryCtor = soaked ? CS.SoakedFunctionApplication : CS.FunctionApplication;
-          fn = rp(new secondaryCtor(fn, list));
+          fn = rp(new secondaryCtor(fn, secondaryArgs[1]));
         }
         return fn;
         function isOwn$(o, p) {
@@ -447,7 +462,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c87 = function(as) {return as;
+        peg$c88 = function(as) {return as;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -457,7 +472,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c88 = function(as, bs) {return [].slice.call(as).concat([].slice.call(null != bs ? bs : []));
+        peg$c89 = function(as, bs) {return [].slice.call(as).concat([].slice.call(null != bs ? bs : []));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -467,7 +482,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c89 = function(e) {return rp(new CS.NewOp(e, []));
+        peg$c90 = function(e) {return rp(new CS.NewOp(e, []));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -477,7 +492,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c90 = function(e, args) {return rp(new CS.NewOp(e, args.operands[0]));
+        peg$c91 = function(e, args) {return rp(new CS.NewOp(e, args.operands[0]));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -487,7 +502,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c91 = function(e, accesses) {return createMemberExpression(e, accesses);
+        peg$c92 = function(e, accesses) {return createMemberExpression(e, accesses);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -497,7 +512,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c92 = function(e, args) {return rp(new CS.NewOp(e, args));
+        peg$c93 = function(e, args) {return rp(new CS.NewOp(e, args));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -507,7 +522,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c93 = function(e, accesses) {var acc;
+        peg$c94 = function(e, accesses) {var acc;
         acc = foldl(function (memo, a) {
           return memo.concat(a);
         }, [], accesses);
@@ -521,9 +536,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c94 = ".",
-        peg$c95 = { type: "literal", value: ".", description: "\".\"" },
-        peg$c96 = function(e) {return rp({
+        peg$c95 = ".",
+        peg$c96 = { type: "literal", value: ".", description: "\".\"" },
+        peg$c97 = function(e) {return rp({
           op: CS.MemberAccessOp,
           operands: [e]
         });
@@ -536,9 +551,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c97 = "?.",
-        peg$c98 = { type: "literal", value: "?.", description: "\"?.\"" },
-        peg$c99 = function(e) {return rp({
+        peg$c98 = "?.",
+        peg$c99 = { type: "literal", value: "?.", description: "\"?.\"" },
+        peg$c100 = function(e) {return rp({
           op: CS.SoakedMemberAccessOp,
           operands: [e]
         });
@@ -551,11 +566,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c100 = "[",
-        peg$c101 = { type: "literal", value: "[", description: "\"[\"" },
-        peg$c102 = "]",
-        peg$c103 = { type: "literal", value: "]", description: "\"]\"" },
-        peg$c104 = function(e) {return rp({
+        peg$c101 = "[",
+        peg$c102 = { type: "literal", value: "[", description: "\"[\"" },
+        peg$c103 = "]",
+        peg$c104 = { type: "literal", value: "]", description: "\"]\"" },
+        peg$c105 = function(e) {return rp({
           op: CS.DynamicMemberAccessOp,
           operands: [e]
         });
@@ -568,9 +583,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c105 = "?[",
-        peg$c106 = { type: "literal", value: "?[", description: "\"?[\"" },
-        peg$c107 = function(e) {return rp({
+        peg$c106 = "?[",
+        peg$c107 = { type: "literal", value: "?[", description: "\"?[\"" },
+        peg$c108 = function(e) {return rp({
           op: CS.SoakedDynamicMemberAccessOp,
           operands: [e]
         });
@@ -583,9 +598,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c108 = "::",
-        peg$c109 = { type: "literal", value: "::", description: "\"::\"" },
-        peg$c110 = function(e) {return rp({
+        peg$c109 = "::",
+        peg$c110 = { type: "literal", value: "::", description: "\"::\"" },
+        peg$c111 = function(e) {return rp({
           op: CS.ProtoMemberAccessOp,
           operands: [e]
         });
@@ -598,9 +613,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c111 = "::[",
-        peg$c112 = { type: "literal", value: "::[", description: "\"::[\"" },
-        peg$c113 = function(e) {return rp({
+        peg$c112 = "::[",
+        peg$c113 = { type: "literal", value: "::[", description: "\"::[\"" },
+        peg$c114 = function(e) {return rp({
           op: CS.DynamicProtoMemberAccessOp,
           operands: [e]
         });
@@ -613,9 +628,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c114 = "?::",
-        peg$c115 = { type: "literal", value: "?::", description: "\"?::\"" },
-        peg$c116 = function(e) {return rp({
+        peg$c115 = "?::",
+        peg$c116 = { type: "literal", value: "?::", description: "\"?::\"" },
+        peg$c117 = function(e) {return rp({
           op: CS.SoakedProtoMemberAccessOp,
           operands: [e]
         });
@@ -628,9 +643,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c117 = "?::[",
-        peg$c118 = { type: "literal", value: "?::[", description: "\"?::[\"" },
-        peg$c119 = function(e) {return rp({
+        peg$c118 = "?::[",
+        peg$c119 = { type: "literal", value: "?::[", description: "\"?::[\"" },
+        peg$c120 = function(e) {return rp({
           op: CS.SoakedDynamicProtoMemberAccessOp,
           operands: [e]
         });
@@ -643,9 +658,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c120 = "..",
-        peg$c121 = { type: "literal", value: "..", description: "\"..\"" },
-        peg$c122 = function(left, exclusive, right) {return rp({
+        peg$c121 = "..",
+        peg$c122 = { type: "literal", value: "..", description: "\"..\"" },
+        peg$c123 = function(left, exclusive, right) {return rp({
           op: CS.Slice,
           operands: [
             !exclusive,
@@ -662,9 +677,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c123 = "@",
-        peg$c124 = { type: "literal", value: "@", description: "\"@\"" },
-        peg$c125 = function() {return rp(new CS.This);
+        peg$c124 = "@",
+        peg$c125 = { type: "literal", value: "@", description: "\"@\"" },
+        peg$c126 = function() {return rp(new CS.This);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -674,7 +689,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c126 = function(e) {return r(e.clone());
+        peg$c127 = function(e) {return r(e.clone());
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -684,7 +699,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c127 = function(a, m) {return rp(new CS.MemberAccessOp(a, m));
+        peg$c128 = function(a, m) {return rp(new CS.MemberAccessOp(a, m));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -694,11 +709,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c128 = "`",
-        peg$c129 = { type: "literal", value: "`", description: "\"`\"" },
-        peg$c130 = /^[^`]/,
-        peg$c131 = { type: "class", value: "[^`]", description: "[^`]" },
-        peg$c132 = function(d) {return rp(new CS.JavaScript(d));
+        peg$c129 = "`",
+        peg$c130 = { type: "literal", value: "`", description: "\"`\"" },
+        peg$c131 = /^[^`]/,
+        peg$c132 = { type: "class", value: "[^`]", description: "[^`]" },
+        peg$c133 = function(d) {return rp(new CS.JavaScript(d));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -708,9 +723,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c133 = "...",
-        peg$c134 = { type: "literal", value: "...", description: "\"...\"" },
-        peg$c135 = function(e) {return rp(new CS.Spread(e));
+        peg$c134 = "...",
+        peg$c135 = { type: "literal", value: "...", description: "\"...\"" },
+        peg$c136 = function(e) {return rp(new CS.Spread(e));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -720,7 +735,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c136 = function(kw, cond, body, elseClause) {switch (kw) {
+        peg$c137 = function(kw, cond, body, elseClause) {switch (kw) {
         case 'if':
           return rp(new CS.Conditional(cond, body.block, elseClause));
         case 'unless':
@@ -735,7 +750,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c137 = function(b) {return { block: b };
+        peg$c138 = function(b) {return { block: b };
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -745,7 +760,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c138 = function(s) {return { block: s };
+        peg$c139 = function(s) {return { block: s };
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -755,7 +770,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c139 = function() {return { block: null };
+        peg$c140 = function() {return { block: null };
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -765,7 +780,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c140 = function(b) {return b;
+        peg$c141 = function(b) {return b;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -775,7 +790,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c141 = function(kw, cond, body) {switch (kw) {
+        peg$c142 = function(kw, cond, body) {switch (kw) {
         case 'while':
           return rp(new CS.While(cond, body.block));
         case 'until':
@@ -790,7 +805,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c142 = function(body) {return rp(new CS.Loop(body.block));
+        peg$c143 = function(body) {return rp(new CS.Loop(body.block));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -800,7 +815,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c143 = function(body, c, f) {return rp(new CS.Try(body.block, null != (null != c ? c.assignee : void 0) ? null != c ? c.assignee : void 0 : null, null != (null != c ? c.block : void 0) ? null != c ? c.block : void 0 : null, null != (null != f ? f.block : void 0) ? null != f ? f.block : void 0 : null));
+        peg$c144 = function(body, c, f) {return rp(new CS.Try(body.block, null != (null != c ? c.assignee : void 0) ? null != c ? c.assignee : void 0 : null, null != (null != c ? c.block : void 0) ? null != c ? c.block : void 0 : null, null != (null != f ? f.block : void 0) ? null != f ? f.block : void 0 : null));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -810,7 +825,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c144 = function(e, body) {return r({
+        peg$c145 = function(e, body) {return r({
           block: null != body ? body.block : new CS.Block([]),
           assignee: e
         });
@@ -823,7 +838,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c145 = function(body) {return r({ block: null != (null != body ? body.block : void 0) ? null != body ? body.block : void 0 : null });
+        peg$c146 = function(body) {return r({ block: null != (null != body ? body.block : void 0) ? null != body ? body.block : void 0 : null });
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -833,7 +848,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c146 = function(name, parent, body) {var boundMembers, ctor, m, stmts;
+        peg$c147 = function(name, parent, body) {var boundMembers, ctor, m, stmts;
         ctor = null;
         boundMembers = [];
         stmts = null != body ? null != body.statements ? body.statements : [body] : [];
@@ -855,7 +870,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c147 = function(key) {return key['instanceof'](CS.String, CS.Identifier) && key.data === 'constructor';
+        peg$c148 = function(key) {return key['instanceof'](CS.String, CS.Identifier) && key.data === 'constructor';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -865,10 +880,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c148 = ":",
-        peg$c149 = { type: "literal", value: ":", description: "\":\"" },
-        peg$c150 = function(key, fn) {if (fn['instanceof'](CS.BoundFunction))
+        peg$c149 = ":",
+        peg$c150 = { type: "literal", value: ":", description: "\":\"" },
+        peg$c151 = function(key, fn) {if (fn['instanceof'](CS.BoundFunction)) {
           fn = c(new CS.Function(fn.parameters, fn.body).r(fn.raw), fn);
+        }
         return rp(new CS.Constructor(fn));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
@@ -879,7 +895,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c151 = function(e) {return r({ expr: e });
+        peg$c152 = function(e) {return r({ expr: e });
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -889,7 +905,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c152 = function(key, e) {return rp(new CS.AssignOp(key, e.expr));
+        peg$c153 = function(key, e) {return rp(new CS.AssignOp(key, e.expr));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -899,7 +915,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c153 = function(key, e) {return rp(new CS.ClassProtoAssignOp(key, e.expr));
+        peg$c154 = function(key, e) {return rp(new CS.ClassProtoAssignOp(key, e.expr));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -909,7 +925,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c154 = function(own, key, val, obj, filter, body) {return rp(new CS.ForOf(Boolean(own), key, val, obj, filter, body.block));
+        peg$c155 = function(own, key, val, obj, filter, body) {return rp(new CS.ForOf(Boolean(own), key, val, obj, filter, body.block));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -919,7 +935,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c155 = function(valKey, list, step, filter, body) {var cache$, key, val;
+        peg$c156 = function(valKey, list, step, filter, body) {var cache$, key, val;
         cache$ = null != valKey ? valKey : [
           null,
           null
@@ -940,7 +956,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c156 = function(e, body) {return rp(new CS.Switch(e, body.cases, null != body['else'] ? body['else'] : null));
+        peg$c157 = function(e, body) {return rp(new CS.Switch(e, body.cases, null != body['else'] ? body['else'] : null));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -950,7 +966,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c157 = function(b) {return r({
+        peg$c158 = function(b) {return r({
           cases: b.cases,
           'else': b['else']
         });
@@ -963,7 +979,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c158 = function(c) {return r({ cases: [c] });
+        peg$c159 = function(c) {return r({ cases: [c] });
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -973,7 +989,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c159 = function() {return r({ cases: [] });
+        peg$c160 = function() {return r({ cases: [] });
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -983,7 +999,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c160 = function(c) {return c;
+        peg$c161 = function(c) {return c;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -993,7 +1009,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c161 = function(c, cs, elseClause) {return r({
+        peg$c162 = function(c, cs, elseClause) {return r({
           cases: [c].concat([].slice.call(cs)),
           'else': elseClause
         });
@@ -1006,7 +1022,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c162 = function(conditions, body) {return rp(new CS.SwitchCase(conditions, body.block));
+        peg$c163 = function(conditions, body) {return rp(new CS.SwitchCase(conditions, body.block));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1016,7 +1032,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c163 = function(c, cs) {return [c].concat([].slice.call(cs));
+        peg$c164 = function(c, cs) {return [c].concat([].slice.call(cs));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1026,7 +1042,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c164 = function(p) {return p;
+        peg$c165 = function(p) {return p;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1036,11 +1052,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c165 = "->",
-        peg$c166 = { type: "literal", value: "->", description: "\"->\"" },
-        peg$c167 = "=>",
-        peg$c168 = { type: "literal", value: "=>", description: "\"=>\"" },
-        peg$c169 = function(params, arrow, body) {var constructor;
+        peg$c166 = "->",
+        peg$c167 = { type: "literal", value: "->", description: "\"->\"" },
+        peg$c168 = "=>",
+        peg$c169 = { type: "literal", value: "=>", description: "\"=>\"" },
+        peg$c170 = function(params, arrow, body) {var constructor;
         constructor = function () {
           switch (arrow) {
           case '->':
@@ -1059,7 +1075,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c170 = function(param, default_) {return rp(new CS.DefaultParam(param, default_));
+        peg$c171 = function(param, default_) {return rp(new CS.DefaultParam(param, default_));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1069,7 +1085,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c171 = function(a, rest) {return rp(null != rest ? new CS.Rest(a) : a);
+        peg$c172 = function(a, rest) {return rp(null != rest ? new CS.Rest(a) : a);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1079,7 +1095,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c172 = function(left, exclusiveDot, right) {var inclusive;
+        peg$c173 = function(left, exclusiveDot, right) {var inclusive;
         inclusive = !exclusiveDot;
         return rp(new CS.Range(inclusive, left, right));
         function isOwn$(o, p) {
@@ -1091,7 +1107,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c173 = function(members) {return rp(new CS.ArrayInitialiser(members));
+        peg$c174 = function(members) {return rp(new CS.ArrayInitialiser(members));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1101,7 +1117,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c174 = function(members) {return members;
+        peg$c175 = function(members) {return members;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1111,7 +1127,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c175 = function(members) {return null != members ? members : [];
+        peg$c176 = function(members) {return null != members ? members : [];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1121,11 +1137,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c176 = "{",
-        peg$c177 = { type: "literal", value: "{", description: "\"{\"" },
-        peg$c178 = "}",
-        peg$c179 = { type: "literal", value: "}", description: "\"}\"" },
-        peg$c180 = function(members) {return rp(new CS.ObjectInitialiser(members));
+        peg$c177 = "{",
+        peg$c178 = { type: "literal", value: "{", description: "\"{\"" },
+        peg$c179 = "}",
+        peg$c180 = { type: "literal", value: "}", description: "\"}\"" },
+        peg$c181 = function(members) {return rp(new CS.ObjectInitialiser(members));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1135,7 +1151,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c181 = function(v) {var key;
+        peg$c182 = function(v) {var key;
         key = p(new CS.String(v.memberName).g());
         return rp(new CS.ObjectInitialiserMember(key, v));
         function isOwn$(o, p) {
@@ -1147,7 +1163,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c182 = function(v) {return rp(new CS.ObjectInitialiserMember(v, v));
+        peg$c183 = function(v) {return rp(new CS.ObjectInitialiserMember(v, v));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1157,7 +1173,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c183 = function(i) {return rp(new CS.Identifier(i));
+        peg$c184 = function(i) {return rp(new CS.Identifier(i));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1167,7 +1183,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c184 = function(key, val) {return rp(new CS.ObjectInitialiserMember(key, val));
+        peg$c185 = function(key, val) {return rp(new CS.ObjectInitialiserMember(key, val));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1177,9 +1193,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c185 = "__LINE__",
-        peg$c186 = { type: "literal", value: "__LINE__", description: "\"__LINE__\"" },
-        peg$c187 = function() {return rp(new CS.Int(line()));
+        peg$c186 = "__LINE__",
+        peg$c187 = { type: "literal", value: "__LINE__", description: "\"__LINE__\"" },
+        peg$c188 = function() {return rp(new CS.Int(line()));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1189,9 +1205,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c188 = "__FILENAME__",
-        peg$c189 = { type: "literal", value: "__FILENAME__", description: "\"__FILENAME__\"" },
-        peg$c190 = function() {return rp(new CS.String(null != options.inputSource ? options.inputSource : ''));
+        peg$c189 = "__FILENAME__",
+        peg$c190 = { type: "literal", value: "__FILENAME__", description: "\"__FILENAME__\"" },
+        peg$c191 = function() {return rp(new CS.String(null != options.inputSource ? options.inputSource : ''));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1201,9 +1217,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c191 = "__DATE__",
-        peg$c192 = { type: "literal", value: "__DATE__", description: "\"__DATE__\"" },
-        peg$c193 = function() {return rp(new CS.String(new Date().toDateString().slice(4)));
+        peg$c192 = "__DATE__",
+        peg$c193 = { type: "literal", value: "__DATE__", description: "\"__DATE__\"" },
+        peg$c194 = function() {return rp(new CS.String(new Date().toDateString().slice(4)));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1213,9 +1229,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c194 = "__TIME__",
-        peg$c195 = { type: "literal", value: "__TIME__", description: "\"__TIME__\"" },
-        peg$c196 = function() {return rp(new CS.String(new Date().toTimeString().slice(0, 8)));
+        peg$c195 = "__TIME__",
+        peg$c196 = { type: "literal", value: "__TIME__", description: "\"__TIME__\"" },
+        peg$c197 = function() {return rp(new CS.String(new Date().toTimeString().slice(0, 8)));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1225,9 +1241,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c197 = "__DATETIMEMS__",
-        peg$c198 = { type: "literal", value: "__DATETIMEMS__", description: "\"__DATETIMEMS__\"" },
-        peg$c199 = function() {return rp(new CS.Int(+new Date));
+        peg$c198 = "__DATETIMEMS__",
+        peg$c199 = { type: "literal", value: "__DATETIMEMS__", description: "\"__DATETIMEMS__\"" },
+        peg$c200 = function() {return rp(new CS.Int(+new Date));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1237,9 +1253,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c200 = "__COFFEE_VERSION__",
-        peg$c201 = { type: "literal", value: "__COFFEE_VERSION__", description: "\"__COFFEE_VERSION__\"" },
-        peg$c202 = function() {return rp(new CS.String(require('../package.json').version));
+        peg$c201 = "__COFFEE_VERSION__",
+        peg$c202 = { type: "literal", value: "__COFFEE_VERSION__", description: "\"__COFFEE_VERSION__\"" },
+        peg$c203 = function() {return rp(new CS.String(require('../package.json').version));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1249,7 +1265,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c203 = function() {return rp(new CS.Bool(true));
+        peg$c204 = "__TARGET_ES6__",
+        peg$c205 = { type: "literal", value: "__TARGET_ES6__", description: "\"__TARGET_ES6__\"" },
+        peg$c206 = function() {return rp(new CS.Bool(!!options.targetES6));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1259,7 +1277,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c204 = function() {return rp(new CS.Bool(false));
+        peg$c207 = function() {return rp(new CS.Bool(true));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1269,9 +1287,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c205 = "0b",
-        peg$c206 = { type: "literal", value: "0b", description: "\"0b\"" },
-        peg$c207 = function(bs) {return rp(new CS.Int(parseInt(bs, 2)));
+        peg$c208 = function() {return rp(new CS.Bool(false));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1281,9 +1297,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c208 = "0o",
-        peg$c209 = { type: "literal", value: "0o", description: "\"0o\"" },
-        peg$c210 = function(os) {return rp(new CS.Int(parseInt(os, 8)));
+        peg$c209 = "0b",
+        peg$c210 = { type: "literal", value: "0b", description: "\"0b\"" },
+        peg$c211 = function(bs) {return rp(new CS.Int(parseInt(bs, 2)));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1293,9 +1309,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c211 = "0x",
-        peg$c212 = { type: "literal", value: "0x", description: "\"0x\"" },
-        peg$c213 = function(hs) {return rp(new CS.Int(parseInt(hs, 16)));
+        peg$c212 = "0o",
+        peg$c213 = { type: "literal", value: "0o", description: "\"0o\"" },
+        peg$c214 = function(os) {return rp(new CS.Int(parseInt(os, 8)));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1305,11 +1321,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c214 = /^[eE]/,
-        peg$c215 = { type: "class", value: "[eE]", description: "[eE]" },
-        peg$c216 = /^[+\-]/,
-        peg$c217 = { type: "class", value: "[+\\-]", description: "[+\\-]" },
-        peg$c218 = function(base, e, sign, exponent) {return rp(new CS.Float(parseFloat('' + base.data + e + (null != sign ? sign : '') + exponent.data)));
+        peg$c215 = "0x",
+        peg$c216 = { type: "literal", value: "0x", description: "\"0x\"" },
+        peg$c217 = function(hs) {return rp(new CS.Int(parseInt(hs, 16)));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1319,7 +1333,21 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c219 = function(integral, fractional) {if (fractional) {
+        peg$c218 = /^[eE]/,
+        peg$c219 = { type: "class", value: "[eE]", description: "[eE]" },
+        peg$c220 = /^[+\-]/,
+        peg$c221 = { type: "class", value: "[+\\-]", description: "[+\\-]" },
+        peg$c222 = function(base, e, sign, exponent) {return rp(new CS.Float(parseFloat('' + base.data + e + (null != sign ? sign : '') + exponent.data)));
+        function isOwn$(o, p) {
+          return {}.hasOwnProperty.call(o, p);
+        }
+        function in$(member, list) {
+          for (var i = 0, length = list.length; i < length; ++i)
+            if (i in list && list[i] === member)
+              return true;
+          return false;
+        }},
+        peg$c223 = function(integral, fractional) {if (fractional) {
           return rp(new CS.Float(parseFloat(integral + fractional)));
         } else {
           return rp(new CS.Int(+integral));
@@ -1333,25 +1361,25 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c220 = "0",
-        peg$c221 = { type: "literal", value: "0", description: "\"0\"" },
-        peg$c222 = /^[1-9]/,
-        peg$c223 = { type: "class", value: "[1-9]", description: "[1-9]" },
-        peg$c224 = /^[0-9]/,
-        peg$c225 = { type: "class", value: "[0-9]", description: "[0-9]" },
-        peg$c226 = /^[0-9a-fA-F]/,
-        peg$c227 = { type: "class", value: "[0-9a-fA-F]", description: "[0-9a-fA-F]" },
-        peg$c228 = /^[0-7]/,
-        peg$c229 = { type: "class", value: "[0-7]", description: "[0-7]" },
-        peg$c230 = /^[01]/,
-        peg$c231 = { type: "class", value: "[01]", description: "[01]" },
-        peg$c232 = "\"\"\"",
-        peg$c233 = { type: "literal", value: "\"\"\"", description: "\"\\\"\\\"\\\"\"" },
-        peg$c234 = "'",
-        peg$c235 = { type: "literal", value: "'", description: "\"'\"" },
-        peg$c236 = "\"",
-        peg$c237 = { type: "literal", value: "\"", description: "\"\\\"\"" },
-        peg$c238 = function(d) {return rp(new CS.String(stripLeadingWhitespace(d.join(''))));
+        peg$c224 = "0",
+        peg$c225 = { type: "literal", value: "0", description: "\"0\"" },
+        peg$c226 = /^[1-9]/,
+        peg$c227 = { type: "class", value: "[1-9]", description: "[1-9]" },
+        peg$c228 = /^[0-9]/,
+        peg$c229 = { type: "class", value: "[0-9]", description: "[0-9]" },
+        peg$c230 = /^[0-9a-fA-F]/,
+        peg$c231 = { type: "class", value: "[0-9a-fA-F]", description: "[0-9a-fA-F]" },
+        peg$c232 = /^[0-7]/,
+        peg$c233 = { type: "class", value: "[0-7]", description: "[0-7]" },
+        peg$c234 = /^[01]/,
+        peg$c235 = { type: "class", value: "[01]", description: "[01]" },
+        peg$c236 = "\"\"\"",
+        peg$c237 = { type: "literal", value: "\"\"\"", description: "\"\\\"\\\"\\\"\"" },
+        peg$c238 = "'",
+        peg$c239 = { type: "literal", value: "'", description: "\"'\"" },
+        peg$c240 = "\"",
+        peg$c241 = { type: "literal", value: "\"", description: "\"\\\"\"" },
+        peg$c242 = function(d) {return rp(new CS.String(stripLeadingWhitespace(d.join(''))));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1361,11 +1389,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c239 = "'''",
-        peg$c240 = { type: "literal", value: "'''", description: "\"'''\"" },
-        peg$c241 = "#",
-        peg$c242 = { type: "literal", value: "#", description: "\"#\"" },
-        peg$c243 = function(d) {return rp(new CS.String(d.join('')));
+        peg$c243 = "'''",
+        peg$c244 = { type: "literal", value: "'''", description: "\"'''\"" },
+        peg$c245 = "#",
+        peg$c246 = { type: "literal", value: "#", description: "\"#\"" },
+        peg$c247 = function(d) {return rp(new CS.String(d.join('')));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1375,11 +1403,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c244 = /^[^"'\\#]/,
-        peg$c245 = { type: "class", value: "[^\"'\\\\#]", description: "[^\"'\\\\#]" },
-        peg$c246 = "\\x",
-        peg$c247 = { type: "literal", value: "\\x", description: "\"\\\\x\"" },
-        peg$c248 = function(h) {return String.fromCharCode(parseInt(h, 16));
+        peg$c248 = /^[^"'\\#]/,
+        peg$c249 = { type: "class", value: "[^\"'\\\\#]", description: "[^\"'\\\\#]" },
+        peg$c250 = "\\x",
+        peg$c251 = { type: "literal", value: "\\x", description: "\"\\\\x\"" },
+        peg$c252 = function(h) {return String.fromCharCode(parseInt(h, 16));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1389,9 +1417,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c249 = "\\0",
-        peg$c250 = { type: "literal", value: "\\0", description: "\"\\\\0\"" },
-        peg$c251 = function() {return '\0';
+        peg$c253 = "\\0",
+        peg$c254 = { type: "literal", value: "\\0", description: "\"\\\\0\"" },
+        peg$c255 = function() {return '\0';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1401,7 +1429,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c252 = function() {throw new SyntaxError(['string data'], 'octal escape sequence', offset(), line(), column());
+        peg$c256 = function() {throw new SyntaxError(['string data'], 'octal escape sequence', offset(), line(), column());
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1411,9 +1439,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c253 = "\\b",
-        peg$c254 = { type: "literal", value: "\\b", description: "\"\\\\b\"" },
-        peg$c255 = function() {return '\b';
+        peg$c257 = "\\b",
+        peg$c258 = { type: "literal", value: "\\b", description: "\"\\\\b\"" },
+        peg$c259 = function() {return '\b';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1423,9 +1451,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c256 = "\\t",
-        peg$c257 = { type: "literal", value: "\\t", description: "\"\\\\t\"" },
-        peg$c258 = function() {return '\t';
+        peg$c260 = "\\t",
+        peg$c261 = { type: "literal", value: "\\t", description: "\"\\\\t\"" },
+        peg$c262 = function() {return '\t';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1435,9 +1463,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c259 = "\\n",
-        peg$c260 = { type: "literal", value: "\\n", description: "\"\\\\n\"" },
-        peg$c261 = function() {return '\n';
+        peg$c263 = "\\n",
+        peg$c264 = { type: "literal", value: "\\n", description: "\"\\\\n\"" },
+        peg$c265 = function() {return '\n';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1447,9 +1475,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c262 = "\\v",
-        peg$c263 = { type: "literal", value: "\\v", description: "\"\\\\v\"" },
-        peg$c264 = function() {return '\x0B';
+        peg$c266 = "\\v",
+        peg$c267 = { type: "literal", value: "\\v", description: "\"\\\\v\"" },
+        peg$c268 = function() {return '\x0B';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1459,9 +1487,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c265 = "\\f",
-        peg$c266 = { type: "literal", value: "\\f", description: "\"\\\\f\"" },
-        peg$c267 = function() {return '\f';
+        peg$c269 = "\\f",
+        peg$c270 = { type: "literal", value: "\\f", description: "\"\\\\f\"" },
+        peg$c271 = function() {return '\f';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1471,9 +1499,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c268 = "\\r",
-        peg$c269 = { type: "literal", value: "\\r", description: "\"\\\\r\"" },
-        peg$c270 = function() {return '\r';
+        peg$c272 = "\\r",
+        peg$c273 = { type: "literal", value: "\\r", description: "\"\\\\r\"" },
+        peg$c274 = function() {return '\r';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1483,12 +1511,12 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c271 = "\\",
-        peg$c272 = { type: "literal", value: "\\", description: "\"\\\\\"" },
-        peg$c273 = { type: "any", description: "any character" },
-        peg$c274 = "#{",
-        peg$c275 = { type: "literal", value: "#{", description: "\"#{\"" },
-        peg$c276 = function(es) {return rp(createInterpolation(stripLeadingWhitespaceInterpolation(es)));
+        peg$c275 = "\\",
+        peg$c276 = { type: "literal", value: "\\", description: "\"\\\\\"" },
+        peg$c277 = { type: "any", description: "any character" },
+        peg$c278 = "#{",
+        peg$c279 = { type: "literal", value: "#{", description: "\"#{\"" },
+        peg$c280 = function(es) {return rp(createInterpolation(stripLeadingWhitespaceInterpolation(es)));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1498,7 +1526,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c277 = function(es) {return rp(createInterpolation(es));
+        peg$c281 = function(es) {return rp(createInterpolation(es));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1508,11 +1536,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c278 = "///",
-        peg$c279 = { type: "literal", value: "///", description: "\"///\"" },
-        peg$c280 = /^[ \r\n]/,
-        peg$c281 = { type: "class", value: "[ \\r\\n]", description: "[ \\r\\n]" },
-        peg$c282 = function() {return [rp(new CS.String('').g())];
+        peg$c282 = "///",
+        peg$c283 = { type: "literal", value: "///", description: "\"///\"" },
+        peg$c284 = /^[ \r\n]/,
+        peg$c285 = { type: "class", value: "[ \\r\\n]", description: "[ \\r\\n]" },
+        peg$c286 = function() {return [rp(new CS.String('').g())];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1522,9 +1550,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c283 = /^[^\\\/#[ \r\n]/,
-        peg$c284 = { type: "class", value: "[^\\\\\\/#[ \\r\\n]", description: "[^\\\\\\/#[ \\r\\n]" },
-        peg$c285 = function(s) {return [rp(new CS.String(s).g())];
+        peg$c287 = /^[^\\\/#[ \r\n]/,
+        peg$c288 = { type: "class", value: "[^\\\\\\/#[ \\r\\n]", description: "[^\\\\\\/#[ \\r\\n]" },
+        peg$c289 = function(s) {return [rp(new CS.String(s).g())];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1534,16 +1562,18 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c286 = /^[gimy]/,
-        peg$c287 = { type: "class", value: "[gimy]", description: "[gimy]" },
-        peg$c288 = function(es, flags) {var interp;
-        if (!isValidRegExpFlags(flags))
+        peg$c290 = /^[gimy]/,
+        peg$c291 = { type: "class", value: "[gimy]", description: "[gimy]" },
+        peg$c292 = function(es, flags) {var interp;
+        if (!isValidRegExpFlags(flags)) {
           throw new SyntaxError(['regular expression flags'], 'regular expression flags', offset(), line(), column());
+        }
         interp = createInterpolation(foldl(function (memo, e) {
           return memo.concat(e);
         }, [], es));
-        if (interp instanceof CS.String)
+        if (interp instanceof CS.String) {
           return p(new CS.RegExp(interp.data, flags));
+        }
         return rp(new CS.HeregExp(interp, flags));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
@@ -1554,12 +1584,13 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c289 = "/",
-        peg$c290 = { type: "literal", value: "/", description: "\"/\"" },
-        peg$c291 = /^[^\/\\[\n]/,
-        peg$c292 = { type: "class", value: "[^\\/\\\\[\\n]", description: "[^\\/\\\\[\\n]" },
-        peg$c293 = function(d, flags) {if (!isValidRegExpFlags(flags))
+        peg$c293 = "/",
+        peg$c294 = { type: "literal", value: "/", description: "\"/\"" },
+        peg$c295 = /^[^\/\\[\n]/,
+        peg$c296 = { type: "class", value: "[^\\/\\\\[\\n]", description: "[^\\/\\\\[\\n]" },
+        peg$c297 = function(d, flags) {if (!isValidRegExpFlags(flags)) {
           throw new SyntaxError(['regular expression flags'], 'regular expression flags', offset(), line(), column());
+        }
         return rp(new CS.RegExp(d, flags));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
@@ -1570,9 +1601,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c294 = /^[^\\\]\n]/,
-        peg$c295 = { type: "class", value: "[^\\\\\\]\\n]", description: "[^\\\\\\]\\n]" },
-        peg$c296 = function(h) {return h[0];
+        peg$c298 = /^[^\\\]\n]/,
+        peg$c299 = { type: "class", value: "[^\\\\\\]\\n]", description: "[^\\\\\\]\\n]" },
+        peg$c300 = function(h) {return h[0];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1582,9 +1613,9 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c297 = /^[^\\\/\]]/,
-        peg$c298 = { type: "class", value: "[^\\\\\\/\\]]", description: "[^\\\\\\/\\]]" },
-        peg$c299 = function(s) {return p(new CS.String(s));
+        peg$c301 = /^[^\\\/\]]/,
+        peg$c302 = { type: "class", value: "[^\\\\\\/\\]]", description: "[^\\\\\\/\\]]" },
+        peg$c303 = function(s) {return p(new CS.String(s));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1594,7 +1625,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c300 = function(d) {return [p(new CS.String('['))].concat([].slice.call(d), [p(new CS.String(']'))]);
+        peg$c304 = function(d) {return [p(new CS.String('['))].concat([].slice.call(d), [p(new CS.String(']'))]);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1604,7 +1635,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c301 = function(d) {return [rp(new CS.String(d))];
+        peg$c305 = function(d) {return [rp(new CS.String(d))];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1614,7 +1645,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c302 = function(s) {return [rp(new CS.String(s))];
+        peg$c306 = function(s) {return [rp(new CS.String(s))];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1624,7 +1655,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c303 = function(c) {return [rp(new CS.String(c))];
+        peg$c307 = function(c) {return [rp(new CS.String(c))];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1634,7 +1665,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c304 = function(e) {return [e];
+        peg$c308 = function(e) {return [e];
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1644,7 +1675,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c305 = function(e) {return rp(new CS.Throw(e));
+        peg$c309 = function(e) {return rp(new CS.Throw(e));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1654,7 +1685,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c306 = function(e) {return rp(new CS.Return(e));
+        peg$c310 = function(e) {return rp(new CS.Return(e));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1664,7 +1695,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c307 = function() {return rp(new CS.Continue);
+        peg$c311 = function() {return rp(new CS.Continue);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1674,7 +1705,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c308 = function() {return rp(new CS.Break);
+        peg$c312 = function() {return rp(new CS.Break);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1684,7 +1715,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c309 = function() {return rp(new CS.Debugger);
+        peg$c313 = function() {return rp(new CS.Debugger);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1694,7 +1725,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c310 = function() {return rp(new CS.Undefined);
+        peg$c314 = function() {return rp(new CS.Undefined);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1704,7 +1735,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c311 = function() {return rp(new CS.Null);
+        peg$c315 = function() {return rp(new CS.Null);
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1714,11 +1745,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c312 = "arguments",
-        peg$c313 = { type: "literal", value: "arguments", description: "\"arguments\"" },
-        peg$c314 = "eval",
-        peg$c315 = { type: "literal", value: "eval", description: "\"eval\"" },
-        peg$c316 = function(i) {return i;
+        peg$c316 = "arguments",
+        peg$c317 = { type: "literal", value: "arguments", description: "\"arguments\"" },
+        peg$c318 = "eval",
+        peg$c319 = { type: "literal", value: "eval", description: "\"eval\"" },
+        peg$c320 = function(i) {return i;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1728,7 +1759,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c317 = function(v) {var key;
+        peg$c321 = function(v) {var key;
         key = rp(new CS.String(v.memberName));
         return rp(new CS.ObjectInitialiserMember(key, v));
         function isOwn$(o, p) {
@@ -1740,7 +1771,7 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c318 = function(i) {return rp(new CS.ObjectInitialiserMember(i, i));
+        peg$c322 = function(i) {return rp(new CS.ObjectInitialiserMember(i, i));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1750,21 +1781,21 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c319 = /^[$_]/,
-        peg$c320 = { type: "class", value: "[$_]", description: "[$_]" },
-        peg$c321 = "###",
-        peg$c322 = { type: "literal", value: "###", description: "\"###\"" },
-        peg$c323 = /^[^#]/,
-        peg$c324 = { type: "class", value: "[^#]", description: "[^#]" },
-        peg$c325 = /^[\t\x0B\f \xA0\uFEFF\u1680\u180E\u2000-\u200A\u202F\u205F\u3000]/,
-        peg$c326 = { type: "class", value: "[\\t\\x0B\\f \\xA0\\uFEFF\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000]", description: "[\\t\\x0B\\f \\xA0\\uFEFF\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000]" },
-        peg$c327 = "\r",
-        peg$c328 = { type: "literal", value: "\r", description: "\"\\r\"" },
-        peg$c329 = "\n",
-        peg$c330 = { type: "literal", value: "\n", description: "\"\\n\"" },
-        peg$c331 = "\uEFEF",
-        peg$c332 = { type: "literal", value: "\uEFEF", description: "\"\\uEFEF\"" },
-        peg$c333 = function(ws) {return ws;
+        peg$c323 = /^[$_]/,
+        peg$c324 = { type: "class", value: "[$_]", description: "[$_]" },
+        peg$c325 = "###",
+        peg$c326 = { type: "literal", value: "###", description: "\"###\"" },
+        peg$c327 = /^[^#]/,
+        peg$c328 = { type: "class", value: "[^#]", description: "[^#]" },
+        peg$c329 = /^[\t\x0B\f \xA0\uFEFF\u1680\u180E\u2000-\u200A\u202F\u205F\u3000]/,
+        peg$c330 = { type: "class", value: "[\\t\\x0B\\f \\xA0\\uFEFF\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000]", description: "[\\t\\x0B\\f \\xA0\\uFEFF\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000]" },
+        peg$c331 = "\r",
+        peg$c332 = { type: "literal", value: "\r", description: "\"\\r\"" },
+        peg$c333 = "\n",
+        peg$c334 = { type: "literal", value: "\n", description: "\"\\n\"" },
+        peg$c335 = "\uEFEF",
+        peg$c336 = { type: "literal", value: "\uEFEF", description: "\"\\uEFEF\"" },
+        peg$c337 = function(ws) {return ws;
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1774,11 +1805,11 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c334 = "\uEFFE",
-        peg$c335 = { type: "literal", value: "\uEFFE", description: "\"\\uEFFE\"" },
-        peg$c336 = "\uEFFF",
-        peg$c337 = { type: "literal", value: "\uEFFF", description: "\"\\uEFFF\"" },
-        peg$c338 = function() {return '';
+        peg$c338 = "\uEFFE",
+        peg$c339 = { type: "literal", value: "\uEFFE", description: "\"\\uEFFE\"" },
+        peg$c340 = "\uEFFF",
+        peg$c341 = { type: "literal", value: "\uEFFF", description: "\"\\uEFFF\"" },
+        peg$c342 = function() {return '';
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1788,137 +1819,137 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c339 = "and",
-        peg$c340 = { type: "literal", value: "and", description: "\"and\"" },
-        peg$c341 = "break",
-        peg$c342 = { type: "literal", value: "break", description: "\"break\"" },
-        peg$c343 = "by",
-        peg$c344 = { type: "literal", value: "by", description: "\"by\"" },
-        peg$c345 = "catch",
-        peg$c346 = { type: "literal", value: "catch", description: "\"catch\"" },
-        peg$c347 = "continue",
-        peg$c348 = { type: "literal", value: "continue", description: "\"continue\"" },
-        peg$c349 = "class",
-        peg$c350 = { type: "literal", value: "class", description: "\"class\"" },
-        peg$c351 = "delete",
-        peg$c352 = { type: "literal", value: "delete", description: "\"delete\"" },
-        peg$c353 = "debugger",
-        peg$c354 = { type: "literal", value: "debugger", description: "\"debugger\"" },
-        peg$c355 = "do",
-        peg$c356 = { type: "literal", value: "do", description: "\"do\"" },
-        peg$c357 = "else",
-        peg$c358 = { type: "literal", value: "else", description: "\"else\"" },
-        peg$c359 = "extends",
-        peg$c360 = { type: "literal", value: "extends", description: "\"extends\"" },
-        peg$c361 = "false",
-        peg$c362 = { type: "literal", value: "false", description: "\"false\"" },
-        peg$c363 = "finally",
-        peg$c364 = { type: "literal", value: "finally", description: "\"finally\"" },
-        peg$c365 = "for",
-        peg$c366 = { type: "literal", value: "for", description: "\"for\"" },
-        peg$c367 = "if",
-        peg$c368 = { type: "literal", value: "if", description: "\"if\"" },
-        peg$c369 = "in",
-        peg$c370 = { type: "literal", value: "in", description: "\"in\"" },
-        peg$c371 = "instanceof",
-        peg$c372 = { type: "literal", value: "instanceof", description: "\"instanceof\"" },
-        peg$c373 = "is",
-        peg$c374 = { type: "literal", value: "is", description: "\"is\"" },
-        peg$c375 = "isnt",
-        peg$c376 = { type: "literal", value: "isnt", description: "\"isnt\"" },
-        peg$c377 = "loop",
-        peg$c378 = { type: "literal", value: "loop", description: "\"loop\"" },
-        peg$c379 = "new",
-        peg$c380 = { type: "literal", value: "new", description: "\"new\"" },
-        peg$c381 = "no",
-        peg$c382 = { type: "literal", value: "no", description: "\"no\"" },
-        peg$c383 = "not",
-        peg$c384 = { type: "literal", value: "not", description: "\"not\"" },
-        peg$c385 = "null",
-        peg$c386 = { type: "literal", value: "null", description: "\"null\"" },
-        peg$c387 = "of",
-        peg$c388 = { type: "literal", value: "of", description: "\"of\"" },
-        peg$c389 = "off",
-        peg$c390 = { type: "literal", value: "off", description: "\"off\"" },
-        peg$c391 = "on",
-        peg$c392 = { type: "literal", value: "on", description: "\"on\"" },
-        peg$c393 = "or",
-        peg$c394 = { type: "literal", value: "or", description: "\"or\"" },
-        peg$c395 = "own",
-        peg$c396 = { type: "literal", value: "own", description: "\"own\"" },
-        peg$c397 = "return",
-        peg$c398 = { type: "literal", value: "return", description: "\"return\"" },
-        peg$c399 = "switch",
-        peg$c400 = { type: "literal", value: "switch", description: "\"switch\"" },
-        peg$c401 = "then",
-        peg$c402 = { type: "literal", value: "then", description: "\"then\"" },
-        peg$c403 = "this",
-        peg$c404 = { type: "literal", value: "this", description: "\"this\"" },
-        peg$c405 = "throw",
-        peg$c406 = { type: "literal", value: "throw", description: "\"throw\"" },
-        peg$c407 = "true",
-        peg$c408 = { type: "literal", value: "true", description: "\"true\"" },
-        peg$c409 = "try",
-        peg$c410 = { type: "literal", value: "try", description: "\"try\"" },
-        peg$c411 = "typeof",
-        peg$c412 = { type: "literal", value: "typeof", description: "\"typeof\"" },
-        peg$c413 = "undefined",
-        peg$c414 = { type: "literal", value: "undefined", description: "\"undefined\"" },
-        peg$c415 = "unless",
-        peg$c416 = { type: "literal", value: "unless", description: "\"unless\"" },
-        peg$c417 = "until",
-        peg$c418 = { type: "literal", value: "until", description: "\"until\"" },
-        peg$c419 = "when",
-        peg$c420 = { type: "literal", value: "when", description: "\"when\"" },
-        peg$c421 = "while",
-        peg$c422 = { type: "literal", value: "while", description: "\"while\"" },
-        peg$c423 = "yes",
-        peg$c424 = { type: "literal", value: "yes", description: "\"yes\"" },
-        peg$c425 = "super",
-        peg$c426 = { type: "literal", value: "super", description: "\"super\"" },
-        peg$c427 = "case",
-        peg$c428 = { type: "literal", value: "case", description: "\"case\"" },
-        peg$c429 = "default",
-        peg$c430 = { type: "literal", value: "default", description: "\"default\"" },
-        peg$c431 = "function",
-        peg$c432 = { type: "literal", value: "function", description: "\"function\"" },
-        peg$c433 = "var",
-        peg$c434 = { type: "literal", value: "var", description: "\"var\"" },
-        peg$c435 = "void",
-        peg$c436 = { type: "literal", value: "void", description: "\"void\"" },
-        peg$c437 = "with",
-        peg$c438 = { type: "literal", value: "with", description: "\"with\"" },
-        peg$c439 = "const",
-        peg$c440 = { type: "literal", value: "const", description: "\"const\"" },
-        peg$c441 = "let",
-        peg$c442 = { type: "literal", value: "let", description: "\"let\"" },
-        peg$c443 = "enum",
-        peg$c444 = { type: "literal", value: "enum", description: "\"enum\"" },
-        peg$c445 = "export",
-        peg$c446 = { type: "literal", value: "export", description: "\"export\"" },
-        peg$c447 = "import",
-        peg$c448 = { type: "literal", value: "import", description: "\"import\"" },
-        peg$c449 = "native",
-        peg$c450 = { type: "literal", value: "native", description: "\"native\"" },
-        peg$c451 = "implements",
-        peg$c452 = { type: "literal", value: "implements", description: "\"implements\"" },
-        peg$c453 = "interface",
-        peg$c454 = { type: "literal", value: "interface", description: "\"interface\"" },
-        peg$c455 = "package",
-        peg$c456 = { type: "literal", value: "package", description: "\"package\"" },
-        peg$c457 = "private",
-        peg$c458 = { type: "literal", value: "private", description: "\"private\"" },
-        peg$c459 = "protected",
-        peg$c460 = { type: "literal", value: "protected", description: "\"protected\"" },
-        peg$c461 = "public",
-        peg$c462 = { type: "literal", value: "public", description: "\"public\"" },
-        peg$c463 = "static",
-        peg$c464 = { type: "literal", value: "static", description: "\"static\"" },
-        peg$c465 = "yield",
-        peg$c466 = { type: "literal", value: "yield", description: "\"yield\"" },
-        peg$c467 = "\\u",
-        peg$c468 = { type: "literal", value: "\\u", description: "\"\\\\u\"" },
-        peg$c469 = function(h0, h1, h2, h3) {return String.fromCharCode(parseInt(h0 + h1 + h2 + h3, 16));
+        peg$c343 = "and",
+        peg$c344 = { type: "literal", value: "and", description: "\"and\"" },
+        peg$c345 = "break",
+        peg$c346 = { type: "literal", value: "break", description: "\"break\"" },
+        peg$c347 = "by",
+        peg$c348 = { type: "literal", value: "by", description: "\"by\"" },
+        peg$c349 = "catch",
+        peg$c350 = { type: "literal", value: "catch", description: "\"catch\"" },
+        peg$c351 = "continue",
+        peg$c352 = { type: "literal", value: "continue", description: "\"continue\"" },
+        peg$c353 = "class",
+        peg$c354 = { type: "literal", value: "class", description: "\"class\"" },
+        peg$c355 = "delete",
+        peg$c356 = { type: "literal", value: "delete", description: "\"delete\"" },
+        peg$c357 = "debugger",
+        peg$c358 = { type: "literal", value: "debugger", description: "\"debugger\"" },
+        peg$c359 = "do",
+        peg$c360 = { type: "literal", value: "do", description: "\"do\"" },
+        peg$c361 = "else",
+        peg$c362 = { type: "literal", value: "else", description: "\"else\"" },
+        peg$c363 = "extends",
+        peg$c364 = { type: "literal", value: "extends", description: "\"extends\"" },
+        peg$c365 = "false",
+        peg$c366 = { type: "literal", value: "false", description: "\"false\"" },
+        peg$c367 = "finally",
+        peg$c368 = { type: "literal", value: "finally", description: "\"finally\"" },
+        peg$c369 = "for",
+        peg$c370 = { type: "literal", value: "for", description: "\"for\"" },
+        peg$c371 = "if",
+        peg$c372 = { type: "literal", value: "if", description: "\"if\"" },
+        peg$c373 = "in",
+        peg$c374 = { type: "literal", value: "in", description: "\"in\"" },
+        peg$c375 = "instanceof",
+        peg$c376 = { type: "literal", value: "instanceof", description: "\"instanceof\"" },
+        peg$c377 = "is",
+        peg$c378 = { type: "literal", value: "is", description: "\"is\"" },
+        peg$c379 = "isnt",
+        peg$c380 = { type: "literal", value: "isnt", description: "\"isnt\"" },
+        peg$c381 = "loop",
+        peg$c382 = { type: "literal", value: "loop", description: "\"loop\"" },
+        peg$c383 = "new",
+        peg$c384 = { type: "literal", value: "new", description: "\"new\"" },
+        peg$c385 = "no",
+        peg$c386 = { type: "literal", value: "no", description: "\"no\"" },
+        peg$c387 = "not",
+        peg$c388 = { type: "literal", value: "not", description: "\"not\"" },
+        peg$c389 = "null",
+        peg$c390 = { type: "literal", value: "null", description: "\"null\"" },
+        peg$c391 = "of",
+        peg$c392 = { type: "literal", value: "of", description: "\"of\"" },
+        peg$c393 = "off",
+        peg$c394 = { type: "literal", value: "off", description: "\"off\"" },
+        peg$c395 = "on",
+        peg$c396 = { type: "literal", value: "on", description: "\"on\"" },
+        peg$c397 = "or",
+        peg$c398 = { type: "literal", value: "or", description: "\"or\"" },
+        peg$c399 = "own",
+        peg$c400 = { type: "literal", value: "own", description: "\"own\"" },
+        peg$c401 = "return",
+        peg$c402 = { type: "literal", value: "return", description: "\"return\"" },
+        peg$c403 = "switch",
+        peg$c404 = { type: "literal", value: "switch", description: "\"switch\"" },
+        peg$c405 = "then",
+        peg$c406 = { type: "literal", value: "then", description: "\"then\"" },
+        peg$c407 = "this",
+        peg$c408 = { type: "literal", value: "this", description: "\"this\"" },
+        peg$c409 = "throw",
+        peg$c410 = { type: "literal", value: "throw", description: "\"throw\"" },
+        peg$c411 = "true",
+        peg$c412 = { type: "literal", value: "true", description: "\"true\"" },
+        peg$c413 = "try",
+        peg$c414 = { type: "literal", value: "try", description: "\"try\"" },
+        peg$c415 = "typeof",
+        peg$c416 = { type: "literal", value: "typeof", description: "\"typeof\"" },
+        peg$c417 = "undefined",
+        peg$c418 = { type: "literal", value: "undefined", description: "\"undefined\"" },
+        peg$c419 = "unless",
+        peg$c420 = { type: "literal", value: "unless", description: "\"unless\"" },
+        peg$c421 = "until",
+        peg$c422 = { type: "literal", value: "until", description: "\"until\"" },
+        peg$c423 = "when",
+        peg$c424 = { type: "literal", value: "when", description: "\"when\"" },
+        peg$c425 = "while",
+        peg$c426 = { type: "literal", value: "while", description: "\"while\"" },
+        peg$c427 = "yes",
+        peg$c428 = { type: "literal", value: "yes", description: "\"yes\"" },
+        peg$c429 = "super",
+        peg$c430 = { type: "literal", value: "super", description: "\"super\"" },
+        peg$c431 = "case",
+        peg$c432 = { type: "literal", value: "case", description: "\"case\"" },
+        peg$c433 = "default",
+        peg$c434 = { type: "literal", value: "default", description: "\"default\"" },
+        peg$c435 = "function",
+        peg$c436 = { type: "literal", value: "function", description: "\"function\"" },
+        peg$c437 = "var",
+        peg$c438 = { type: "literal", value: "var", description: "\"var\"" },
+        peg$c439 = "void",
+        peg$c440 = { type: "literal", value: "void", description: "\"void\"" },
+        peg$c441 = "with",
+        peg$c442 = { type: "literal", value: "with", description: "\"with\"" },
+        peg$c443 = "const",
+        peg$c444 = { type: "literal", value: "const", description: "\"const\"" },
+        peg$c445 = "let",
+        peg$c446 = { type: "literal", value: "let", description: "\"let\"" },
+        peg$c447 = "enum",
+        peg$c448 = { type: "literal", value: "enum", description: "\"enum\"" },
+        peg$c449 = "export",
+        peg$c450 = { type: "literal", value: "export", description: "\"export\"" },
+        peg$c451 = "import",
+        peg$c452 = { type: "literal", value: "import", description: "\"import\"" },
+        peg$c453 = "native",
+        peg$c454 = { type: "literal", value: "native", description: "\"native\"" },
+        peg$c455 = "implements",
+        peg$c456 = { type: "literal", value: "implements", description: "\"implements\"" },
+        peg$c457 = "interface",
+        peg$c458 = { type: "literal", value: "interface", description: "\"interface\"" },
+        peg$c459 = "package",
+        peg$c460 = { type: "literal", value: "package", description: "\"package\"" },
+        peg$c461 = "private",
+        peg$c462 = { type: "literal", value: "private", description: "\"private\"" },
+        peg$c463 = "protected",
+        peg$c464 = { type: "literal", value: "protected", description: "\"protected\"" },
+        peg$c465 = "public",
+        peg$c466 = { type: "literal", value: "public", description: "\"public\"" },
+        peg$c467 = "static",
+        peg$c468 = { type: "literal", value: "static", description: "\"static\"" },
+        peg$c469 = "yield",
+        peg$c470 = { type: "literal", value: "yield", description: "\"yield\"" },
+        peg$c471 = "\\u",
+        peg$c472 = { type: "literal", value: "\\u", description: "\"\\\\u\"" },
+        peg$c473 = function(h0, h1, h2, h3) {return String.fromCharCode(parseInt(h0 + h1 + h2 + h3, 16));
         function isOwn$(o, p) {
           return {}.hasOwnProperty.call(o, p);
         }
@@ -1928,106 +1959,106 @@ module.exports = (function() {
               return true;
           return false;
         }},
-        peg$c470 = 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},
-        peg$c472 = "\uD82C",
-        peg$c473 = { type: "literal", value: "\uD82C", description: "\"\\uD82C\"" },
-        peg$c474 = /^[\uDC00\uDC01]/,
-        peg$c475 = { type: "class", value: "[\\uDC00\\uDC01]", description: "[\\uDC00\\uDC01]" },
-        peg$c476 = "\uD808",
-        peg$c477 = { type: "literal", value: "\uD808", description: "\"\\uD808\"" },
-        peg$c478 = /^[\uDC00-\uDF6E]/,
-        peg$c479 = { type: "class", value: "[\\uDC00-\\uDF6E]", description: "[\\uDC00-\\uDF6E]" },
-        peg$c480 = "\uD869",
-        peg$c481 = { type: "literal", value: "\uD869", description: "\"\\uD869\"" },
-        peg$c482 = /^[\uDED6\uDF00]/,
-        peg$c483 = { type: "class", value: "[\\uDED6\\uDF00]", description: "[\\uDED6\\uDF00]" },
-        peg$c484 = "\uD809",
-        peg$c485 = { type: "literal", value: "\uD809", description: "\"\\uD809\"" },
-        peg$c486 = /^[\uDC00-\uDC62]/,
-        peg$c487 = { type: "class", value: "[\\uDC00-\\uDC62]", description: "[\\uDC00-\\uDC62]" },
-        peg$c488 = "\uD835",
-        peg$c489 = { type: "literal", value: "\uD835", description: "\"\\uD835\"" },
-        peg$c490 = /^[\uDC00-\uDC19\uDC34-\uDC4D\uDC68-\uDC81\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB5\uDCD0-\uDCE9\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD38\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD6C-\uDD85\uDDA0-\uDDB9\uDDD4-\uDDED\uDE08-\uDE21\uDE3C-\uDE55\uDE70-\uDE89\uDEA8-\uDEC0\uDEE2-\uDEFA\uDF1C-\uDF34\uDF56-\uDF6E\uDF90-\uDFA8\uDFCA\uDC1A-\uDC33\uDC4E-\uDC54\uDC56-\uDC67\uDC82-\uDC9B\uDCB6-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDCEA-\uDD03\uDD1E-\uDD37\uDD52-\uDD6B\uDD86-\uDD9F\uDDBA-\uDDD3\uDDEE-\uDE07\uDE22-\uDE3B\uDE56-\uDE6F\uDE8A-\uDEA5\uDEC2-\uDEDA\uDEDC-\uDEE1\uDEFC-\uDF14\uDF16-\uDF1B\uDF36-\uDF4E\uDF50-\uDF55\uDF70-\uDF88\uDF8A-\uDF8F\uDFAA-\uDFC2\uDFC4-\uDFC9\uDFCB]/,
-        peg$c491 = { type: "class", value: "[\\uDC00-\\uDC19\\uDC34-\\uDC4D\\uDC68-\\uDC81\\uDC9C\\uDC9E\\uDC9F\\uDCA2\\uDCA5\\uDCA6\\uDCA9-\\uDCAC\\uDCAE-\\uDCB5\\uDCD0-\\uDCE9\\uDD04\\uDD05\\uDD07-\\uDD0A\\uDD0D-\\uDD14\\uDD16-\\uDD1C\\uDD38\\uDD39\\uDD3B-\\uDD3E\\uDD40-\\uDD44\\uDD46\\uDD4A-\\uDD50\\uDD6C-\\uDD85\\uDDA0-\\uDDB9\\uDDD4-\\uDDED\\uDE08-\\uDE21\\uDE3C-\\uDE55\\uDE70-\\uDE89\\uDEA8-\\uDEC0\\uDEE2-\\uDEFA\\uDF1C-\\uDF34\\uDF56-\\uDF6E\\uDF90-\\uDFA8\\uDFCA\\uDC1A-\\uDC33\\uDC4E-\\uDC54\\uDC56-\\uDC67\\uDC82-\\uDC9B\\uDCB6-\\uDCB9\\uDCBB\\uDCBD-\\uDCC3\\uDCC5-\\uDCCF\\uDCEA-\\uDD03\\uDD1E-\\uDD37\\uDD52-\\uDD6B\\uDD86-\\uDD9F\\uDDBA-\\uDDD3\\uDDEE-\\uDE07\\uDE22-\\uDE3B\\uDE56-\\uDE6F\\uDE8A-\\uDEA5\\uDEC2-\\uDEDA\\uDEDC-\\uDEE1\\uDEFC-\\uDF14\\uDF16-\\uDF1B\\uDF36-\\uDF4E\\uDF50-\\uDF55\\uDF70-\\uDF88\\uDF8A-\\uDF8F\\uDFAA-\\uDFC2\\uDFC4-\\uDFC9\\uDFCB]", description: "[\\uDC00-\\uDC19\\uDC34-\\uDC4D\\uDC68-\\uDC81\\uDC9C\\uDC9E\\uDC9F\\uDCA2\\uDCA5\\uDCA6\\uDCA9-\\uDCAC\\uDCAE-\\uDCB5\\uDCD0-\\uDCE9\\uDD04\\uDD05\\uDD07-\\uDD0A\\uDD0D-\\uDD14\\uDD16-\\uDD1C\\uDD38\\uDD39\\uDD3B-\\uDD3E\\uDD40-\\uDD44\\uDD46\\uDD4A-\\uDD50\\uDD6C-\\uDD85\\uDDA0-\\uDDB9\\uDDD4-\\uDDED\\uDE08-\\uDE21\\uDE3C-\\uDE55\\uDE70-\\uDE89\\uDEA8-\\uDEC0\\uDEE2-\\uDEFA\\uDF1C-\\uDF34\\uDF56-\\uDF6E\\uDF90-\\uDFA8\\uDFCA\\uDC1A-\\uDC33\\uDC4E-\\uDC54\\uDC56-\\uDC67\\uDC82-\\uDC9B\\uDCB6-\\uDCB9\\uDCBB\\uDCBD-\\uDCC3\\uDCC5-\\uDCCF\\uDCEA-\\uDD03\\uDD1E-\\uDD37\\uDD52-\\uDD6B\\uDD86-\\uDD9F\\uDDBA-\\uDDD3\\uDDEE-\\uDE07\\uDE22-\\uDE3B\\uDE56-\\uDE6F\\uDE8A-\\uDEA5\\uDEC2-\\uDEDA\\uDEDC-\\uDEE1\\uDEFC-\\uDF14\\uDF16-\\uDF1B\\uDF36-\\uDF4E\\uDF50-\\uDF55\\uDF70-\\uDF88\\uDF8A-\\uDF8F\\uDFAA-\\uDFC2\\uDFC4-\\uDFC9\\uDFCB]" },
-        peg$c492 = "\uD804",
-        peg$c493 = { type: "literal", value: "\uD804", description: "\"\\uD804\"" },
-        peg$c494 = /^[\uDC03-\uDC37\uDC83-\uDCAF]/,
-        peg$c495 = { type: "class", value: "[\\uDC03-\\uDC37\\uDC83-\\uDCAF]", description: "[\\uDC03-\\uDC37\\uDC83-\\uDCAF]" },
-        peg$c496 = "\uD800",
-        peg$c497 = { type: "literal", value: "\uD800", description: "\"\\uD800\"" },
-        peg$c498 = /^[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1E\uDF30-\uDF40\uDF42-\uDF49\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDD40-\uDD74\uDF41\uDF4A\uDFD1-\uDFD5]/,
-        peg$c499 = { type: "class", value: "[\\uDC00-\\uDC0B\\uDC0D-\\uDC26\\uDC28-\\uDC3A\\uDC3C\\uDC3D\\uDC3F-\\uDC4D\\uDC50-\\uDC5D\\uDC80-\\uDCFA\\uDE80-\\uDE9C\\uDEA0-\\uDED0\\uDF00-\\uDF1E\\uDF30-\\uDF40\\uDF42-\\uDF49\\uDF80-\\uDF9D\\uDFA0-\\uDFC3\\uDFC8-\\uDFCF\\uDD40-\\uDD74\\uDF41\\uDF4A\\uDFD1-\\uDFD5]", description: "[\\uDC00-\\uDC0B\\uDC0D-\\uDC26\\uDC28-\\uDC3A\\uDC3C\\uDC3D\\uDC3F-\\uDC4D\\uDC50-\\uDC5D\\uDC80-\\uDCFA\\uDE80-\\uDE9C\\uDEA0-\\uDED0\\uDF00-\\uDF1E\\uDF30-\\uDF40\\uDF42-\\uDF49\\uDF80-\\uDF9D\\uDFA0-\\uDFC3\\uDFC8-\\uDFCF\\uDD40-\\uDD74\\uDF41\\uDF4A\\uDFD1-\\uDFD5]" },
-        peg$c500 = "\uD80C",
-        peg$c501 = { type: "literal", value: "\uD80C", description: "\"\\uD80C\"" },
-        peg$c502 = /^[\uDC00-\uDFFF]/,
-        peg$c503 = { type: "class", value: "[\\uDC00-\\uDFFF]", description: "[\\uDC00-\\uDFFF]" },
-        peg$c504 = "\uD801",
-        peg$c505 = { type: "literal", value: "\uD801", description: "\"\\uD801\"" },
-        peg$c506 = /^[\uDC00-\uDC9D]/,
-        peg$c507 = { type: "class", value: "[\\uDC00-\\uDC9D]", description: "[\\uDC00-\\uDC9D]" },
-        peg$c508 = "\uD86E",
-        peg$c509 = { type: "literal", value: "\uD86E", description: "\"\\uD86E\"" },
-        peg$c510 = /^[\uDC1D]/,
-        peg$c511 = { type: "class", value: "[\\uDC1D]", description: "[\\uDC1D]" },
-        peg$c512 = "\uD803",
-        peg$c513 = { type: "literal", value: "\uD803", description: "\"\\uD803\"" },
-        peg$c514 = /^[\uDC00-\uDC48]/,
-        peg$c515 = { type: "class", value: "[\\uDC00-\\uDC48]", description: "[\\uDC00-\\uDC48]" },
-        peg$c516 = "\uD840",
-        peg$c517 = { type: "literal", value: "\uD840", description: "\"\\uD840\"" },
-        peg$c518 = /^[\uDC00]/,
-        peg$c519 = { type: "class", value: "[\\uDC00]", description: "[\\uDC00]" },
-        peg$c520 = "\uD87E",
-        peg$c521 = { type: "literal", value: "\uD87E", description: "\"\\uD87E\"" },
-        peg$c522 = /^[\uDC00-\uDE1D]/,
-        peg$c523 = { type: "class", value: "[\\uDC00-\\uDE1D]", description: "[\\uDC00-\\uDE1D]" },
-        peg$c524 = "\uD86D",
-        peg$c525 = { type: "literal", value: "\uD86D", description: "\"\\uD86D\"" },
-        peg$c526 = /^[\uDF34\uDF40]/,
-        peg$c527 = { type: "class", value: "[\\uDF34\\uDF40]", description: "[\\uDF34\\uDF40]" },
-        peg$c528 = "\uD81A",
-        peg$c529 = { type: "literal", value: "\uD81A", description: "\"\\uD81A\"" },
-        peg$c530 = /^[\uDC00-\uDE38]/,
-        peg$c531 = { type: "class", value: "[\\uDC00-\\uDE38]", description: "[\\uDC00-\\uDE38]" },
-        peg$c532 = "\uD802",
-        peg$c533 = { type: "literal", value: "\uD802", description: "\"\\uD802\"" },
-        peg$c534 = /^[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDD00-\uDD15\uDD20-\uDD39\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-\uDE7C\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72]/,
-        peg$c535 = { type: "class", value: "[\\uDC00-\\uDC05\\uDC08\\uDC0A-\\uDC35\\uDC37\\uDC38\\uDC3C\\uDC3F-\\uDC55\\uDD00-\\uDD15\\uDD20-\\uDD39\\uDE00\\uDE10-\\uDE13\\uDE15-\\uDE17\\uDE19-\\uDE33\\uDE60-\\uDE7C\\uDF00-\\uDF35\\uDF40-\\uDF55\\uDF60-\\uDF72]", description: "[\\uDC00-\\uDC05\\uDC08\\uDC0A-\\uDC35\\uDC37\\uDC38\\uDC3C\\uDC3F-\\uDC55\\uDD00-\\uDD15\\uDD20-\\uDD39\\uDE00\\uDE10-\\uDE13\\uDE15-\\uDE17\\uDE19-\\uDE33\\uDE60-\\uDE7C\\uDF00-\\uDF35\\uDF40-\\uDF55\\uDF60-\\uDF72]" },
-        peg$c536 = "\uD80D",
-        peg$c537 = { type: "literal", value: "\uD80D", description: "\"\\uD80D\"" },
-        peg$c538 = /^[\uDC00-\uDC2E]/,
-        peg$c539 = { type: "class", value: "[\\uDC00-\\uDC2E]", description: "[\\uDC00-\\uDC2E]" },
-        peg$c540 = /^[\u0300-\u036F\u0483-\u0487\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0900-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0CBC\u0CBF\u0CC6\u0CCC\u0CCD\u0CE2\u0CE3\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EB9\u0EBB\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1DC0-\u1DE6\u1DFC-\u1DFF\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F\uA67C\uA67D\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA8C4\uA8E0-\uA8F1\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE26\u0903\u093B\u093E-\u0940\u0949-\u094C\u094E\u094F\u0982\u0983\u09BE-\u09C0\u09C7\u09C8\u09CB\u09CC\u09D7\u0A03\u0A3E-\u0A40\u0A83\u0ABE-\u0AC0\u0AC9\u0ACB\u0ACC\u0B02\u0B03\u0B3E\u0B40\u0B47\u0B48\u0B4B\u0B4C\u0B57\u0BBE\u0BBF\u0BC1\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCC\u0BD7\u0C01-\u0C03\u0C41-\u0C44\u0C82\u0C83\u0CBE\u0CC0-\u0CC4\u0CC7\u0CC8\u0CCA\u0CCB\u0CD5\u0CD6\u0D02\u0D03\u0D3E-\u0D40\u0D46-\u0D48\u0D4A-\u0D4C\u0D57\u0D82\u0D83\u0DCF-\u0DD1\u0DD8-\u0DDF\u0DF2\u0DF3\u0F3E\u0F3F\u0F7F\u102B\u102C\u1031\u1038\u103B\u103C\u1056\u1057\u1062-\u1064\u1067-\u106D\u1083\u1084\u1087-\u108C\u108F\u109A-\u109C\u17B6\u17BE-\u17C5\u17C7\u17C8\u1923-\u1926\u1929-\u192B\u1930\u1931\u1933-\u1938\u19B0-\u19C0\u19C8\u19C9\u1A19-\u1A1B\u1A55\u1A57\u1A61\u1A63\u1A64\u1A6D-\u1A72\u1B04\u1B35\u1B3B\u1B3D-\u1B41\u1B43\u1B44\u1B82\u1BA1\u1BA6\u1BA7\u1BAA\u1BE7\u1BEA-\u1BEC\u1BEE\u1BF2\u1BF3\u1C24-\u1C2B\u1C34\u1C35\u1CE1\u1CF2\uA823\uA824\uA827\uA880\uA881\uA8B4-\uA8C3\uA952\uA953\uA983\uA9B4\uA9B5\uA9BA\uA9BB\uA9BD-\uA9C0\uAA2F\uAA30\uAA33\uAA34\uAA4D\uAA7B\uABE3\uABE4\uABE6\uABE7\uABE9\uABEA\uABEC]/,
-        peg$c541 = { type: "class", value: 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description: 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},
-        peg$c542 = "\uDB40",
-        peg$c543 = { type: "literal", value: "\uDB40", description: "\"\\uDB40\"" },
-        peg$c544 = /^[\uDD00-\uDDEF]/,
-        peg$c545 = { type: "class", value: "[\\uDD00-\\uDDEF]", description: "[\\uDD00-\\uDDEF]" },
-        peg$c546 = "\uD834",
-        peg$c547 = { type: "literal", value: "\uD834", description: "\"\\uD834\"" },
-        peg$c548 = /^[\uDD67-\uDD69\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44\uDD65\uDD66\uDD6D-\uDD72]/,
-        peg$c549 = { type: "class", value: "[\\uDD67-\\uDD69\\uDD7B-\\uDD82\\uDD85-\\uDD8B\\uDDAA-\\uDDAD\\uDE42-\\uDE44\\uDD65\\uDD66\\uDD6D-\\uDD72]", description: "[\\uDD67-\\uDD69\\uDD7B-\\uDD82\\uDD85-\\uDD8B\\uDDAA-\\uDDAD\\uDE42-\\uDE44\\uDD65\\uDD66\\uDD6D-\\uDD72]" },
-        peg$c550 = /^[\uDC01\uDC38-\uDC46\uDC80\uDC81\uDCB3-\uDCB6\uDCB9\uDCBA\uDC00\uDC02\uDC82\uDCB0-\uDCB2\uDCB7\uDCB8]/,
-        peg$c551 = { type: "class", value: "[\\uDC01\\uDC38-\\uDC46\\uDC80\\uDC81\\uDCB3-\\uDCB6\\uDCB9\\uDCBA\\uDC00\\uDC02\\uDC82\\uDCB0-\\uDCB2\\uDCB7\\uDCB8]", description: "[\\uDC01\\uDC38-\\uDC46\\uDC80\\uDC81\\uDCB3-\\uDCB6\\uDCB9\\uDCBA\\uDC00\\uDC02\\uDC82\\uDCB0-\\uDCB2\\uDCB7\\uDCB8]" },
-        peg$c552 = /^[\uDDFD]/,
-        peg$c553 = { type: "class", value: "[\\uDDFD]", description: "[\\uDDFD]" },
-        peg$c554 = /^[\uDE01-\uDE03\uDE05\uDE06\uDE0C-\uDE0F\uDE38-\uDE3A\uDE3F]/,
-        peg$c555 = { type: "class", value: "[\\uDE01-\\uDE03\\uDE05\\uDE06\\uDE0C-\\uDE0F\\uDE38-\\uDE3A\\uDE3F]", description: "[\\uDE01-\\uDE03\\uDE05\\uDE06\\uDE0C-\\uDE0F\\uDE38-\\uDE3A\\uDE3F]" },
-        peg$c556 = /^[0-9\u0660-\u0669\u06F0-\u06F9\u07C0-\u07C9\u0966-\u096F\u09E6-\u09EF\u0A66-\u0A6F\u0AE6-\u0AEF\u0B66-\u0B6F\u0BE6-\u0BEF\u0C66-\u0C6F\u0CE6-\u0CEF\u0D66-\u0D6F\u0E50-\u0E59\u0ED0-\u0ED9\u0F20-\u0F29\u1040-\u1049\u1090-\u1099\u17E0-\u17E9\u1810-\u1819\u1946-\u194F\u19D0-\u19D9\u1A80-\u1A89\u1A90-\u1A99\u1B50-\u1B59\u1BB0-\u1BB9\u1C40-\u1C49\u1C50-\u1C59\uA620-\uA629\uA8D0-\uA8D9\uA900-\uA909\uA9D0-\uA9D9\uAA50-\uAA59\uABF0-\uABF9\uFF10-\uFF19]/,
-        peg$c557 = { type: "class", value: "[0-9\\u0660-\\u0669\\u06F0-\\u06F9\\u07C0-\\u07C9\\u0966-\\u096F\\u09E6-\\u09EF\\u0A66-\\u0A6F\\u0AE6-\\u0AEF\\u0B66-\\u0B6F\\u0BE6-\\u0BEF\\u0C66-\\u0C6F\\u0CE6-\\u0CEF\\u0D66-\\u0D6F\\u0E50-\\u0E59\\u0ED0-\\u0ED9\\u0F20-\\u0F29\\u1040-\\u1049\\u1090-\\u1099\\u17E0-\\u17E9\\u1810-\\u1819\\u1946-\\u194F\\u19D0-\\u19D9\\u1A80-\\u1A89\\u1A90-\\u1A99\\u1B50-\\u1B59\\u1BB0-\\u1BB9\\u1C40-\\u1C49\\u1C50-\\u1C59\\uA620-\\uA629\\uA8D0-\\uA8D9\\uA900-\\uA909\\uA9D0-\\uA9D9\\uAA50-\\uAA59\\uABF0-\\uABF9\\uFF10-\\uFF19]", description: "[0-9\\u0660-\\u0669\\u06F0-\\u06F9\\u07C0-\\u07C9\\u0966-\\u096F\\u09E6-\\u09EF\\u0A66-\\u0A6F\\u0AE6-\\u0AEF\\u0B66-\\u0B6F\\u0BE6-\\u0BEF\\u0C66-\\u0C6F\\u0CE6-\\u0CEF\\u0D66-\\u0D6F\\u0E50-\\u0E59\\u0ED0-\\u0ED9\\u0F20-\\u0F29\\u1040-\\u1049\\u1090-\\u1099\\u17E0-\\u17E9\\u1810-\\u1819\\u1946-\\u194F\\u19D0-\\u19D9\\u1A80-\\u1A89\\u1A90-\\u1A99\\u1B50-\\u1B59\\u1BB0-\\u1BB9\\u1C40-\\u1C49\\u1C50-\\u1C59\\uA620-\\uA629\\uA8D0-\\uA8D9\\uA900-\\uA909\\uA9D0-\\uA9D9\\uAA50-\\uAA59\\uABF0-\\uABF9\\uFF10-\\uFF19]" },
-        peg$c558 = /^[\uDFCE-\uDFFF]/,
-        peg$c559 = { type: "class", value: "[\\uDFCE-\\uDFFF]", description: "[\\uDFCE-\\uDFFF]" },
-        peg$c560 = /^[\uDC66-\uDC6F]/,
-        peg$c561 = { type: "class", value: "[\\uDC66-\\uDC6F]", description: "[\\uDC66-\\uDC6F]" },
-        peg$c562 = /^[\uDCA0-\uDCA9]/,
-        peg$c563 = { type: "class", value: "[\\uDCA0-\\uDCA9]", description: "[\\uDCA0-\\uDCA9]" },
-        peg$c564 = /^[_\u203F\u2040\u2054\uFE33\uFE34\uFE4D-\uFE4F\uFF3F]/,
-        peg$c565 = { type: "class", value: "[_\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]", description: "[_\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]" },
-        peg$c566 = "\u200C",
-        peg$c567 = { type: "literal", value: "\u200C", description: "\"\\u200C\"" },
-        peg$c568 = "\u200D",
-        peg$c569 = { type: "literal", value: "\u200D", description: "\"\\u200D\"" },
+        peg$c474 = 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},
+        peg$c476 = "\uD82C",
+        peg$c477 = { type: "literal", value: "\uD82C", description: "\"\\uD82C\"" },
+        peg$c478 = /^[\uDC00\uDC01]/,
+        peg$c479 = { type: "class", value: "[\\uDC00\\uDC01]", description: "[\\uDC00\\uDC01]" },
+        peg$c480 = "\uD808",
+        peg$c481 = { type: "literal", value: "\uD808", description: "\"\\uD808\"" },
+        peg$c482 = /^[\uDC00-\uDF6E]/,
+        peg$c483 = { type: "class", value: "[\\uDC00-\\uDF6E]", description: "[\\uDC00-\\uDF6E]" },
+        peg$c484 = "\uD869",
+        peg$c485 = { type: "literal", value: "\uD869", description: "\"\\uD869\"" },
+        peg$c486 = /^[\uDED6\uDF00]/,
+        peg$c487 = { type: "class", value: "[\\uDED6\\uDF00]", description: "[\\uDED6\\uDF00]" },
+        peg$c488 = "\uD809",
+        peg$c489 = { type: "literal", value: "\uD809", description: "\"\\uD809\"" },
+        peg$c490 = /^[\uDC00-\uDC62]/,
+        peg$c491 = { type: "class", value: "[\\uDC00-\\uDC62]", description: "[\\uDC00-\\uDC62]" },
+        peg$c492 = "\uD835",
+        peg$c493 = { type: "literal", value: "\uD835", description: "\"\\uD835\"" },
+        peg$c494 = /^[\uDC00-\uDC19\uDC34-\uDC4D\uDC68-\uDC81\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB5\uDCD0-\uDCE9\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD38\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD6C-\uDD85\uDDA0-\uDDB9\uDDD4-\uDDED\uDE08-\uDE21\uDE3C-\uDE55\uDE70-\uDE89\uDEA8-\uDEC0\uDEE2-\uDEFA\uDF1C-\uDF34\uDF56-\uDF6E\uDF90-\uDFA8\uDFCA\uDC1A-\uDC33\uDC4E-\uDC54\uDC56-\uDC67\uDC82-\uDC9B\uDCB6-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDCEA-\uDD03\uDD1E-\uDD37\uDD52-\uDD6B\uDD86-\uDD9F\uDDBA-\uDDD3\uDDEE-\uDE07\uDE22-\uDE3B\uDE56-\uDE6F\uDE8A-\uDEA5\uDEC2-\uDEDA\uDEDC-\uDEE1\uDEFC-\uDF14\uDF16-\uDF1B\uDF36-\uDF4E\uDF50-\uDF55\uDF70-\uDF88\uDF8A-\uDF8F\uDFAA-\uDFC2\uDFC4-\uDFC9\uDFCB]/,
+        peg$c495 = { type: "class", value: "[\\uDC00-\\uDC19\\uDC34-\\uDC4D\\uDC68-\\uDC81\\uDC9C\\uDC9E\\uDC9F\\uDCA2\\uDCA5\\uDCA6\\uDCA9-\\uDCAC\\uDCAE-\\uDCB5\\uDCD0-\\uDCE9\\uDD04\\uDD05\\uDD07-\\uDD0A\\uDD0D-\\uDD14\\uDD16-\\uDD1C\\uDD38\\uDD39\\uDD3B-\\uDD3E\\uDD40-\\uDD44\\uDD46\\uDD4A-\\uDD50\\uDD6C-\\uDD85\\uDDA0-\\uDDB9\\uDDD4-\\uDDED\\uDE08-\\uDE21\\uDE3C-\\uDE55\\uDE70-\\uDE89\\uDEA8-\\uDEC0\\uDEE2-\\uDEFA\\uDF1C-\\uDF34\\uDF56-\\uDF6E\\uDF90-\\uDFA8\\uDFCA\\uDC1A-\\uDC33\\uDC4E-\\uDC54\\uDC56-\\uDC67\\uDC82-\\uDC9B\\uDCB6-\\uDCB9\\uDCBB\\uDCBD-\\uDCC3\\uDCC5-\\uDCCF\\uDCEA-\\uDD03\\uDD1E-\\uDD37\\uDD52-\\uDD6B\\uDD86-\\uDD9F\\uDDBA-\\uDDD3\\uDDEE-\\uDE07\\uDE22-\\uDE3B\\uDE56-\\uDE6F\\uDE8A-\\uDEA5\\uDEC2-\\uDEDA\\uDEDC-\\uDEE1\\uDEFC-\\uDF14\\uDF16-\\uDF1B\\uDF36-\\uDF4E\\uDF50-\\uDF55\\uDF70-\\uDF88\\uDF8A-\\uDF8F\\uDFAA-\\uDFC2\\uDFC4-\\uDFC9\\uDFCB]", description: "[\\uDC00-\\uDC19\\uDC34-\\uDC4D\\uDC68-\\uDC81\\uDC9C\\uDC9E\\uDC9F\\uDCA2\\uDCA5\\uDCA6\\uDCA9-\\uDCAC\\uDCAE-\\uDCB5\\uDCD0-\\uDCE9\\uDD04\\uDD05\\uDD07-\\uDD0A\\uDD0D-\\uDD14\\uDD16-\\uDD1C\\uDD38\\uDD39\\uDD3B-\\uDD3E\\uDD40-\\uDD44\\uDD46\\uDD4A-\\uDD50\\uDD6C-\\uDD85\\uDDA0-\\uDDB9\\uDDD4-\\uDDED\\uDE08-\\uDE21\\uDE3C-\\uDE55\\uDE70-\\uDE89\\uDEA8-\\uDEC0\\uDEE2-\\uDEFA\\uDF1C-\\uDF34\\uDF56-\\uDF6E\\uDF90-\\uDFA8\\uDFCA\\uDC1A-\\uDC33\\uDC4E-\\uDC54\\uDC56-\\uDC67\\uDC82-\\uDC9B\\uDCB6-\\uDCB9\\uDCBB\\uDCBD-\\uDCC3\\uDCC5-\\uDCCF\\uDCEA-\\uDD03\\uDD1E-\\uDD37\\uDD52-\\uDD6B\\uDD86-\\uDD9F\\uDDBA-\\uDDD3\\uDDEE-\\uDE07\\uDE22-\\uDE3B\\uDE56-\\uDE6F\\uDE8A-\\uDEA5\\uDEC2-\\uDEDA\\uDEDC-\\uDEE1\\uDEFC-\\uDF14\\uDF16-\\uDF1B\\uDF36-\\uDF4E\\uDF50-\\uDF55\\uDF70-\\uDF88\\uDF8A-\\uDF8F\\uDFAA-\\uDFC2\\uDFC4-\\uDFC9\\uDFCB]" },
+        peg$c496 = "\uD804",
+        peg$c497 = { type: "literal", value: "\uD804", description: "\"\\uD804\"" },
+        peg$c498 = /^[\uDC03-\uDC37\uDC83-\uDCAF]/,
+        peg$c499 = { type: "class", value: "[\\uDC03-\\uDC37\\uDC83-\\uDCAF]", description: "[\\uDC03-\\uDC37\\uDC83-\\uDCAF]" },
+        peg$c500 = "\uD800",
+        peg$c501 = { type: "literal", value: "\uD800", description: "\"\\uD800\"" },
+        peg$c502 = /^[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1E\uDF30-\uDF40\uDF42-\uDF49\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDD40-\uDD74\uDF41\uDF4A\uDFD1-\uDFD5]/,
+        peg$c503 = { type: "class", value: "[\\uDC00-\\uDC0B\\uDC0D-\\uDC26\\uDC28-\\uDC3A\\uDC3C\\uDC3D\\uDC3F-\\uDC4D\\uDC50-\\uDC5D\\uDC80-\\uDCFA\\uDE80-\\uDE9C\\uDEA0-\\uDED0\\uDF00-\\uDF1E\\uDF30-\\uDF40\\uDF42-\\uDF49\\uDF80-\\uDF9D\\uDFA0-\\uDFC3\\uDFC8-\\uDFCF\\uDD40-\\uDD74\\uDF41\\uDF4A\\uDFD1-\\uDFD5]", description: "[\\uDC00-\\uDC0B\\uDC0D-\\uDC26\\uDC28-\\uDC3A\\uDC3C\\uDC3D\\uDC3F-\\uDC4D\\uDC50-\\uDC5D\\uDC80-\\uDCFA\\uDE80-\\uDE9C\\uDEA0-\\uDED0\\uDF00-\\uDF1E\\uDF30-\\uDF40\\uDF42-\\uDF49\\uDF80-\\uDF9D\\uDFA0-\\uDFC3\\uDFC8-\\uDFCF\\uDD40-\\uDD74\\uDF41\\uDF4A\\uDFD1-\\uDFD5]" },
+        peg$c504 = "\uD80C",
+        peg$c505 = { type: "literal", value: "\uD80C", description: "\"\\uD80C\"" },
+        peg$c506 = /^[\uDC00-\uDFFF]/,
+        peg$c507 = { type: "class", value: "[\\uDC00-\\uDFFF]", description: "[\\uDC00-\\uDFFF]" },
+        peg$c508 = "\uD801",
+        peg$c509 = { type: "literal", value: "\uD801", description: "\"\\uD801\"" },
+        peg$c510 = /^[\uDC00-\uDC9D]/,
+        peg$c511 = { type: "class", value: "[\\uDC00-\\uDC9D]", description: "[\\uDC00-\\uDC9D]" },
+        peg$c512 = "\uD86E",
+        peg$c513 = { type: "literal", value: "\uD86E", description: "\"\\uD86E\"" },
+        peg$c514 = /^[\uDC1D]/,
+        peg$c515 = { type: "class", value: "[\\uDC1D]", description: "[\\uDC1D]" },
+        peg$c516 = "\uD803",
+        peg$c517 = { type: "literal", value: "\uD803", description: "\"\\uD803\"" },
+        peg$c518 = /^[\uDC00-\uDC48]/,
+        peg$c519 = { type: "class", value: "[\\uDC00-\\uDC48]", description: "[\\uDC00-\\uDC48]" },
+        peg$c520 = "\uD840",
+        peg$c521 = { type: "literal", value: "\uD840", description: "\"\\uD840\"" },
+        peg$c522 = /^[\uDC00]/,
+        peg$c523 = { type: "class", value: "[\\uDC00]", description: "[\\uDC00]" },
+        peg$c524 = "\uD87E",
+        peg$c525 = { type: "literal", value: "\uD87E", description: "\"\\uD87E\"" },
+        peg$c526 = /^[\uDC00-\uDE1D]/,
+        peg$c527 = { type: "class", value: "[\\uDC00-\\uDE1D]", description: "[\\uDC00-\\uDE1D]" },
+        peg$c528 = "\uD86D",
+        peg$c529 = { type: "literal", value: "\uD86D", description: "\"\\uD86D\"" },
+        peg$c530 = /^[\uDF34\uDF40]/,
+        peg$c531 = { type: "class", value: "[\\uDF34\\uDF40]", description: "[\\uDF34\\uDF40]" },
+        peg$c532 = "\uD81A",
+        peg$c533 = { type: "literal", value: "\uD81A", description: "\"\\uD81A\"" },
+        peg$c534 = /^[\uDC00-\uDE38]/,
+        peg$c535 = { type: "class", value: "[\\uDC00-\\uDE38]", description: "[\\uDC00-\\uDE38]" },
+        peg$c536 = "\uD802",
+        peg$c537 = { type: "literal", value: "\uD802", description: "\"\\uD802\"" },
+        peg$c538 = /^[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDD00-\uDD15\uDD20-\uDD39\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-\uDE7C\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72]/,
+        peg$c539 = { type: "class", value: "[\\uDC00-\\uDC05\\uDC08\\uDC0A-\\uDC35\\uDC37\\uDC38\\uDC3C\\uDC3F-\\uDC55\\uDD00-\\uDD15\\uDD20-\\uDD39\\uDE00\\uDE10-\\uDE13\\uDE15-\\uDE17\\uDE19-\\uDE33\\uDE60-\\uDE7C\\uDF00-\\uDF35\\uDF40-\\uDF55\\uDF60-\\uDF72]", description: "[\\uDC00-\\uDC05\\uDC08\\uDC0A-\\uDC35\\uDC37\\uDC38\\uDC3C\\uDC3F-\\uDC55\\uDD00-\\uDD15\\uDD20-\\uDD39\\uDE00\\uDE10-\\uDE13\\uDE15-\\uDE17\\uDE19-\\uDE33\\uDE60-\\uDE7C\\uDF00-\\uDF35\\uDF40-\\uDF55\\uDF60-\\uDF72]" },
+        peg$c540 = "\uD80D",
+        peg$c541 = { type: "literal", value: "\uD80D", description: "\"\\uD80D\"" },
+        peg$c542 = /^[\uDC00-\uDC2E]/,
+        peg$c543 = { type: "class", value: "[\\uDC00-\\uDC2E]", description: "[\\uDC00-\\uDC2E]" },
+        peg$c544 = /^[\u0300-\u036F\u0483-\u0487\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u0900-\u0902\u093A\u093C\u0941-\u0948\u094D\u0951-\u0957\u0962\u0963\u0981\u09BC\u09C1-\u09C4\u09CD\u09E2\u09E3\u0A01\u0A02\u0A3C\u0A41\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81\u0A82\u0ABC\u0AC1-\u0AC5\u0AC7\u0AC8\u0ACD\u0AE2\u0AE3\u0B01\u0B3C\u0B3F\u0B41-\u0B44\u0B4D\u0B56\u0B62\u0B63\u0B82\u0BC0\u0BCD\u0C3E-\u0C40\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0CBC\u0CBF\u0CC6\u0CCC\u0CCD\u0CE2\u0CE3\u0D41-\u0D44\u0D4D\u0D62\u0D63\u0DCA\u0DD2-\u0DD4\u0DD6\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EB9\u0EBB\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F71-\u0F7E\u0F80-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102D-\u1030\u1032-\u1037\u1039\u103A\u103D\u103E\u1058\u1059\u105E-\u1060\u1071-\u1074\u1082\u1085\u1086\u108D\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B7-\u17BD\u17C6\u17C9-\u17D3\u17DD\u180B-\u180D\u18A9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193B\u1A17\u1A18\u1A56\u1A58-\u1A5E\u1A60\u1A62\u1A65-\u1A6C\u1A73-\u1A7C\u1A7F\u1B00-\u1B03\u1B34\u1B36-\u1B3A\u1B3C\u1B42\u1B6B-\u1B73\u1B80\u1B81\u1BA2-\u1BA5\u1BA8\u1BA9\u1BE6\u1BE8\u1BE9\u1BED\u1BEF-\u1BF1\u1C2C-\u1C33\u1C36\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE0\u1CE2-\u1CE8\u1CED\u1DC0-\u1DE6\u1DFC-\u1DFF\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F\uA67C\uA67D\uA6F0\uA6F1\uA802\uA806\uA80B\uA825\uA826\uA8C4\uA8E0-\uA8F1\uA926-\uA92D\uA947-\uA951\uA980-\uA982\uA9B3\uA9B6-\uA9B9\uA9BC\uAA29-\uAA2E\uAA31\uAA32\uAA35\uAA36\uAA43\uAA4C\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uABE5\uABE8\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE26\u0903\u093B\u093E-\u0940\u0949-\u094C\u094E\u094F\u0982\u0983\u09BE-\u09C0\u09C7\u09C8\u09CB\u09CC\u09D7\u0A03\u0A3E-\u0A40\u0A83\u0ABE-\u0AC0\u0AC9\u0ACB\u0ACC\u0B02\u0B03\u0B3E\u0B40\u0B47\u0B48\u0B4B\u0B4C\u0B57\u0BBE\u0BBF\u0BC1\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCC\u0BD7\u0C01-\u0C03\u0C41-\u0C44\u0C82\u0C83\u0CBE\u0CC0-\u0CC4\u0CC7\u0CC8\u0CCA\u0CCB\u0CD5\u0CD6\u0D02\u0D03\u0D3E-\u0D40\u0D46-\u0D48\u0D4A-\u0D4C\u0D57\u0D82\u0D83\u0DCF-\u0DD1\u0DD8-\u0DDF\u0DF2\u0DF3\u0F3E\u0F3F\u0F7F\u102B\u102C\u1031\u1038\u103B\u103C\u1056\u1057\u1062-\u1064\u1067-\u106D\u1083\u1084\u1087-\u108C\u108F\u109A-\u109C\u17B6\u17BE-\u17C5\u17C7\u17C8\u1923-\u1926\u1929-\u192B\u1930\u1931\u1933-\u1938\u19B0-\u19C0\u19C8\u19C9\u1A19-\u1A1B\u1A55\u1A57\u1A61\u1A63\u1A64\u1A6D-\u1A72\u1B04\u1B35\u1B3B\u1B3D-\u1B41\u1B43\u1B44\u1B82\u1BA1\u1BA6\u1BA7\u1BAA\u1BE7\u1BEA-\u1BEC\u1BEE\u1BF2\u1BF3\u1C24-\u1C2B\u1C34\u1C35\u1CE1\u1CF2\uA823\uA824\uA827\uA880\uA881\uA8B4-\uA8C3\uA952\uA953\uA983\uA9B4\uA9B5\uA9BA\uA9BB\uA9BD-\uA9C0\uAA2F\uAA30\uAA33\uAA34\uAA4D\uAA7B\uABE3\uABE4\uABE6\uABE7\uABE9\uABEA\uABEC]/,
+        peg$c545 = { type: "class", value: "[\\u0300-\\u036F\\u0483-\\u0487\\u0591-\\u05BD\\u05BF\\u05C1\\u05C2\\u05C4\\u05C5\\u05C7\\u0610-\\u061A\\u064B-\\u065F\\u0670\\u06D6-\\u06DC\\u06DF-\\u06E4\\u06E7\\u06E8\\u06EA-\\u06ED\\u0711\\u0730-\\u074A\\u07A6-\\u07B0\\u07EB-\\u07F3\\u0816-\\u0819\\u081B-\\u0823\\u0825-\\u0827\\u0829-\\u082D\\u0859-\\u085B\\u0900-\\u0902\\u093A\\u093C\\u0941-\\u0948\\u094D\\u0951-\\u0957\\u0962\\u0963\\u0981\\u09BC\\u09C1-\\u09C4\\u09CD\\u09E2\\u09E3\\u0A01\\u0A02\\u0A3C\\u0A41\\u0A42\\u0A47\\u0A48\\u0A4B-\\u0A4D\\u0A51\\u0A70\\u0A71\\u0A75\\u0A81\\u0A82\\u0ABC\\u0AC1-\\u0AC5\\u0AC7\\u0AC8\\u0ACD\\u0AE2\\u0AE3\\u0B01\\u0B3C\\u0B3F\\u0B41-\\u0B44\\u0B4D\\u0B56\\u0B62\\u0B63\\u0B82\\u0BC0\\u0BCD\\u0C3E-\\u0C40\\u0C46-\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C62\\u0C63\\u0CBC\\u0CBF\\u0CC6\\u0CCC\\u0CCD\\u0CE2\\u0CE3\\u0D41-\\u0D44\\u0D4D\\u0D62\\u0D63\\u0DCA\\u0DD2-\\u0DD4\\u0DD6\\u0E31\\u0E34-\\u0E3A\\u0E47-\\u0E4E\\u0EB1\\u0EB4-\\u0EB9\\u0EBB\\u0EBC\\u0EC8-\\u0ECD\\u0F18\\u0F19\\u0F35\\u0F37\\u0F39\\u0F71-\\u0F7E\\u0F80-\\u0F84\\u0F86\\u0F87\\u0F8D-\\u0F97\\u0F99-\\u0FBC\\u0FC6\\u102D-\\u1030\\u1032-\\u1037\\u1039\\u103A\\u103D\\u103E\\u1058\\u1059\\u105E-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108D\\u109D\\u135D-\\u135F\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17B7-\\u17BD\\u17C6\\u17C9-\\u17D3\\u17DD\\u180B-\\u180D\\u18A9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193B\\u1A17\\u1A18\\u1A56\\u1A58-\\u1A5E\\u1A60\\u1A62\\u1A65-\\u1A6C\\u1A73-\\u1A7C\\u1A7F\\u1B00-\\u1B03\\u1B34\\u1B36-\\u1B3A\\u1B3C\\u1B42\\u1B6B-\\u1B73\\u1B80\\u1B81\\u1BA2-\\u1BA5\\u1BA8\\u1BA9\\u1BE6\\u1BE8\\u1BE9\\u1BED\\u1BEF-\\u1BF1\\u1C2C-\\u1C33\\u1C36\\u1C37\\u1CD0-\\u1CD2\\u1CD4-\\u1CE0\\u1CE2-\\u1CE8\\u1CED\\u1DC0-\\u1DE6\\u1DFC-\\u1DFF\\u20D0-\\u20DC\\u20E1\\u20E5-\\u20F0\\u2CEF-\\u2CF1\\u2D7F\\u2DE0-\\u2DFF\\u302A-\\u302F\\u3099\\u309A\\uA66F\\uA67C\\uA67D\\uA6F0\\uA6F1\\uA802\\uA806\\uA80B\\uA825\\uA826\\uA8C4\\uA8E0-\\uA8F1\\uA926-\\uA92D\\uA947-\\uA951\\uA980-\\uA982\\uA9B3\\uA9B6-\\uA9B9\\uA9BC\\uAA29-\\uAA2E\\uAA31\\uAA32\\uAA35\\uAA36\\uAA43\\uAA4C\\uAAB0\\uAAB2-\\uAAB4\\uAAB7\\uAAB8\\uAABE\\uAABF\\uAAC1\\uABE5\\uABE8\\uABED\\uFB1E\\uFE00-\\uFE0F\\uFE20-\\uFE26\\u0903\\u093B\\u093E-\\u0940\\u0949-\\u094C\\u094E\\u094F\\u0982\\u0983\\u09BE-\\u09C0\\u09C7\\u09C8\\u09CB\\u09CC\\u09D7\\u0A03\\u0A3E-\\u0A40\\u0A83\\u0ABE-\\u0AC0\\u0AC9\\u0ACB\\u0ACC\\u0B02\\u0B03\\u0B3E\\u0B40\\u0B47\\u0B48\\u0B4B\\u0B4C\\u0B57\\u0BBE\\u0BBF\\u0BC1\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCC\\u0BD7\\u0C01-\\u0C03\\u0C41-\\u0C44\\u0C82\\u0C83\\u0CBE\\u0CC0-\\u0CC4\\u0CC7\\u0CC8\\u0CCA\\u0CCB\\u0CD5\\u0CD6\\u0D02\\u0D03\\u0D3E-\\u0D40\\u0D46-\\u0D48\\u0D4A-\\u0D4C\\u0D57\\u0D82\\u0D83\\u0DCF-\\u0DD1\\u0DD8-\\u0DDF\\u0DF2\\u0DF3\\u0F3E\\u0F3F\\u0F7F\\u102B\\u102C\\u1031\\u1038\\u103B\\u103C\\u1056\\u1057\\u1062-\\u1064\\u1067-\\u106D\\u1083\\u1084\\u1087-\\u108C\\u108F\\u109A-\\u109C\\u17B6\\u17BE-\\u17C5\\u17C7\\u17C8\\u1923-\\u1926\\u1929-\\u192B\\u1930\\u1931\\u1933-\\u1938\\u19B0-\\u19C0\\u19C8\\u19C9\\u1A19-\\u1A1B\\u1A55\\u1A57\\u1A61\\u1A63\\u1A64\\u1A6D-\\u1A72\\u1B04\\u1B35\\u1B3B\\u1B3D-\\u1B41\\u1B43\\u1B44\\u1B82\\u1BA1\\u1BA6\\u1BA7\\u1BAA\\u1BE7\\u1BEA-\\u1BEC\\u1BEE\\u1BF2\\u1BF3\\u1C24-\\u1C2B\\u1C34\\u1C35\\u1CE1\\u1CF2\\uA823\\uA824\\uA827\\uA880\\uA881\\uA8B4-\\uA8C3\\uA952\\uA953\\uA983\\uA9B4\\uA9B5\\uA9BA\\uA9BB\\uA9BD-\\uA9C0\\uAA2F\\uAA30\\uAA33\\uAA34\\uAA4D\\uAA7B\\uABE3\\uABE4\\uABE6\\uABE7\\uABE9\\uABEA\\uABEC]", description: 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},
+        peg$c546 = "\uDB40",
+        peg$c547 = { type: "literal", value: "\uDB40", description: "\"\\uDB40\"" },
+        peg$c548 = /^[\uDD00-\uDDEF]/,
+        peg$c549 = { type: "class", value: "[\\uDD00-\\uDDEF]", description: "[\\uDD00-\\uDDEF]" },
+        peg$c550 = "\uD834",
+        peg$c551 = { type: "literal", value: "\uD834", description: "\"\\uD834\"" },
+        peg$c552 = /^[\uDD67-\uDD69\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44\uDD65\uDD66\uDD6D-\uDD72]/,
+        peg$c553 = { type: "class", value: "[\\uDD67-\\uDD69\\uDD7B-\\uDD82\\uDD85-\\uDD8B\\uDDAA-\\uDDAD\\uDE42-\\uDE44\\uDD65\\uDD66\\uDD6D-\\uDD72]", description: "[\\uDD67-\\uDD69\\uDD7B-\\uDD82\\uDD85-\\uDD8B\\uDDAA-\\uDDAD\\uDE42-\\uDE44\\uDD65\\uDD66\\uDD6D-\\uDD72]" },
+        peg$c554 = /^[\uDC01\uDC38-\uDC46\uDC80\uDC81\uDCB3-\uDCB6\uDCB9\uDCBA\uDC00\uDC02\uDC82\uDCB0-\uDCB2\uDCB7\uDCB8]/,
+        peg$c555 = { type: "class", value: "[\\uDC01\\uDC38-\\uDC46\\uDC80\\uDC81\\uDCB3-\\uDCB6\\uDCB9\\uDCBA\\uDC00\\uDC02\\uDC82\\uDCB0-\\uDCB2\\uDCB7\\uDCB8]", description: "[\\uDC01\\uDC38-\\uDC46\\uDC80\\uDC81\\uDCB3-\\uDCB6\\uDCB9\\uDCBA\\uDC00\\uDC02\\uDC82\\uDCB0-\\uDCB2\\uDCB7\\uDCB8]" },
+        peg$c556 = /^[\uDDFD]/,
+        peg$c557 = { type: "class", value: "[\\uDDFD]", description: "[\\uDDFD]" },
+        peg$c558 = /^[\uDE01-\uDE03\uDE05\uDE06\uDE0C-\uDE0F\uDE38-\uDE3A\uDE3F]/,
+        peg$c559 = { type: "class", value: "[\\uDE01-\\uDE03\\uDE05\\uDE06\\uDE0C-\\uDE0F\\uDE38-\\uDE3A\\uDE3F]", description: "[\\uDE01-\\uDE03\\uDE05\\uDE06\\uDE0C-\\uDE0F\\uDE38-\\uDE3A\\uDE3F]" },
+        peg$c560 = /^[0-9\u0660-\u0669\u06F0-\u06F9\u07C0-\u07C9\u0966-\u096F\u09E6-\u09EF\u0A66-\u0A6F\u0AE6-\u0AEF\u0B66-\u0B6F\u0BE6-\u0BEF\u0C66-\u0C6F\u0CE6-\u0CEF\u0D66-\u0D6F\u0E50-\u0E59\u0ED0-\u0ED9\u0F20-\u0F29\u1040-\u1049\u1090-\u1099\u17E0-\u17E9\u1810-\u1819\u1946-\u194F\u19D0-\u19D9\u1A80-\u1A89\u1A90-\u1A99\u1B50-\u1B59\u1BB0-\u1BB9\u1C40-\u1C49\u1C50-\u1C59\uA620-\uA629\uA8D0-\uA8D9\uA900-\uA909\uA9D0-\uA9D9\uAA50-\uAA59\uABF0-\uABF9\uFF10-\uFF19]/,
+        peg$c561 = { type: "class", value: "[0-9\\u0660-\\u0669\\u06F0-\\u06F9\\u07C0-\\u07C9\\u0966-\\u096F\\u09E6-\\u09EF\\u0A66-\\u0A6F\\u0AE6-\\u0AEF\\u0B66-\\u0B6F\\u0BE6-\\u0BEF\\u0C66-\\u0C6F\\u0CE6-\\u0CEF\\u0D66-\\u0D6F\\u0E50-\\u0E59\\u0ED0-\\u0ED9\\u0F20-\\u0F29\\u1040-\\u1049\\u1090-\\u1099\\u17E0-\\u17E9\\u1810-\\u1819\\u1946-\\u194F\\u19D0-\\u19D9\\u1A80-\\u1A89\\u1A90-\\u1A99\\u1B50-\\u1B59\\u1BB0-\\u1BB9\\u1C40-\\u1C49\\u1C50-\\u1C59\\uA620-\\uA629\\uA8D0-\\uA8D9\\uA900-\\uA909\\uA9D0-\\uA9D9\\uAA50-\\uAA59\\uABF0-\\uABF9\\uFF10-\\uFF19]", description: "[0-9\\u0660-\\u0669\\u06F0-\\u06F9\\u07C0-\\u07C9\\u0966-\\u096F\\u09E6-\\u09EF\\u0A66-\\u0A6F\\u0AE6-\\u0AEF\\u0B66-\\u0B6F\\u0BE6-\\u0BEF\\u0C66-\\u0C6F\\u0CE6-\\u0CEF\\u0D66-\\u0D6F\\u0E50-\\u0E59\\u0ED0-\\u0ED9\\u0F20-\\u0F29\\u1040-\\u1049\\u1090-\\u1099\\u17E0-\\u17E9\\u1810-\\u1819\\u1946-\\u194F\\u19D0-\\u19D9\\u1A80-\\u1A89\\u1A90-\\u1A99\\u1B50-\\u1B59\\u1BB0-\\u1BB9\\u1C40-\\u1C49\\u1C50-\\u1C59\\uA620-\\uA629\\uA8D0-\\uA8D9\\uA900-\\uA909\\uA9D0-\\uA9D9\\uAA50-\\uAA59\\uABF0-\\uABF9\\uFF10-\\uFF19]" },
+        peg$c562 = /^[\uDFCE-\uDFFF]/,
+        peg$c563 = { type: "class", value: "[\\uDFCE-\\uDFFF]", description: "[\\uDFCE-\\uDFFF]" },
+        peg$c564 = /^[\uDC66-\uDC6F]/,
+        peg$c565 = { type: "class", value: "[\\uDC66-\\uDC6F]", description: "[\\uDC66-\\uDC6F]" },
+        peg$c566 = /^[\uDCA0-\uDCA9]/,
+        peg$c567 = { type: "class", value: "[\\uDCA0-\\uDCA9]", description: "[\\uDCA0-\\uDCA9]" },
+        peg$c568 = /^[_\u203F\u2040\u2054\uFE33\uFE34\uFE4D-\uFE4F\uFF3F]/,
+        peg$c569 = { type: "class", value: "[_\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]", description: "[_\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]" },
+        peg$c570 = "\u200C",
+        peg$c571 = { type: "literal", value: "\u200C", description: "\"\\u200C\"" },
+        peg$c572 = "\u200D",
+        peg$c573 = { type: "literal", value: "\u200D", description: "\"\\u200D\"" },
 
         peg$currPos          = 0,
         peg$reportedPos      = 0,
@@ -2199,7 +2230,7 @@ module.exports = (function() {
     function peg$parseprogram() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 0,
+      var key    = peg$currPos * 205 + 0,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2244,7 +2275,7 @@ module.exports = (function() {
     function peg$parsetoplevelBlock() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 1,
+      var key    = peg$currPos * 205 + 1,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2345,7 +2376,7 @@ module.exports = (function() {
     function peg$parsetoplevelStatement() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 2,
+      var key    = peg$currPos * 205 + 2,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2393,7 +2424,7 @@ module.exports = (function() {
     function peg$parseblock() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 3,
+      var key    = peg$currPos * 205 + 3,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2494,7 +2525,7 @@ module.exports = (function() {
     function peg$parsestatement() {
       var s0;
 
-      var key    = peg$currPos * 204 + 4,
+      var key    = peg$currPos * 205 + 4,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2527,7 +2558,7 @@ module.exports = (function() {
     function peg$parseexpression() {
       var s0;
 
-      var key    = peg$currPos * 204 + 5,
+      var key    = peg$currPos * 205 + 5,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2548,7 +2579,7 @@ module.exports = (function() {
     function peg$parsesecondaryStatement() {
       var s0;
 
-      var key    = peg$currPos * 204 + 6,
+      var key    = peg$currPos * 205 + 6,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2581,7 +2612,7 @@ module.exports = (function() {
     function peg$parsesecondaryExpression() {
       var s0;
 
-      var key    = peg$currPos * 204 + 7,
+      var key    = peg$currPos * 205 + 7,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2602,7 +2633,7 @@ module.exports = (function() {
     function peg$parsesecondaryExpressionNoImplicitObjectCall() {
       var s0;
 
-      var key    = peg$currPos * 204 + 8,
+      var key    = peg$currPos * 205 + 8,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2623,7 +2654,7 @@ module.exports = (function() {
     function peg$parseexpressionworthy() {
       var s0;
 
-      var key    = peg$currPos * 204 + 9,
+      var key    = peg$currPos * 205 + 9,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2668,7 +2699,7 @@ module.exports = (function() {
     function peg$parseseqExpression() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 10,
+      var key    = peg$currPos * 205 + 10,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2746,7 +2777,7 @@ module.exports = (function() {
     function peg$parsepostfixControlFlowExpression() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 11,
+      var key    = peg$currPos * 205 + 11,
           cached = peg$cache[key];
 
       if (cached) {
@@ -2812,7 +2843,7 @@ module.exports = (function() {
     function peg$parsepostfixControlFlowOp() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14;
 
-      var key    = peg$currPos * 204 + 12,
+      var key    = peg$currPos * 205 + 12,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3204,7 +3235,7 @@ module.exports = (function() {
     function peg$parseassignmentExpression() {
       var s0;
 
-      var key    = peg$currPos * 204 + 13,
+      var key    = peg$currPos * 205 + 13,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3231,7 +3262,7 @@ module.exports = (function() {
     function peg$parseassignmentOp() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 14,
+      var key    = peg$currPos * 205 + 14,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3351,7 +3382,7 @@ module.exports = (function() {
     function peg$parsecompoundAssignmentOp() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9;
 
-      var key    = peg$currPos * 204 + 15,
+      var key    = peg$currPos * 205 + 15,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3477,7 +3508,7 @@ module.exports = (function() {
     function peg$parseCompoundAssignmentOperators() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 16,
+      var key    = peg$currPos * 205 + 16,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3642,7 +3673,7 @@ module.exports = (function() {
     function peg$parseexistsAssignmentOp() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 17,
+      var key    = peg$currPos * 205 + 17,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3747,7 +3778,7 @@ module.exports = (function() {
     function peg$parseassignmentExpressionNoImplicitObjectCall() {
       var s0;
 
-      var key    = peg$currPos * 204 + 18,
+      var key    = peg$currPos * 205 + 18,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3774,7 +3805,7 @@ module.exports = (function() {
     function peg$parseassignmentOpNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 19,
+      var key    = peg$currPos * 205 + 19,
           cached = peg$cache[key];
 
       if (cached) {
@@ -3894,7 +3925,7 @@ module.exports = (function() {
     function peg$parsecompoundAssignmentOpNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9;
 
-      var key    = peg$currPos * 204 + 20,
+      var key    = peg$currPos * 205 + 20,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4020,7 +4051,7 @@ module.exports = (function() {
     function peg$parseexistsAssignmentOpNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 21,
+      var key    = peg$currPos * 205 + 21,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4125,7 +4156,7 @@ module.exports = (function() {
     function peg$parsebinaryExpression() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 22,
+      var key    = peg$currPos * 205 + 22,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4241,7 +4272,7 @@ module.exports = (function() {
     function peg$parsebinaryOperator() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 23,
+      var key    = peg$currPos * 205 + 23,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4395,7 +4426,7 @@ module.exports = (function() {
     function peg$parsebinaryExpressionNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 24,
+      var key    = peg$currPos * 205 + 24,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4511,7 +4542,7 @@ module.exports = (function() {
     function peg$parseprefixExpression() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 25,
+      var key    = peg$currPos * 205 + 25,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4619,7 +4650,7 @@ module.exports = (function() {
     function peg$parsePrefixOperators() {
       var s0;
 
-      var key    = peg$currPos * 204 + 26,
+      var key    = peg$currPos * 205 + 26,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4700,7 +4731,7 @@ module.exports = (function() {
     function peg$parsenfe() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 27,
+      var key    = peg$currPos * 205 + 27,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4772,7 +4803,7 @@ module.exports = (function() {
     function peg$parseprefixExpressionNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 28,
+      var key    = peg$currPos * 205 + 28,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4880,7 +4911,7 @@ module.exports = (function() {
     function peg$parsepostfixExpression() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 29,
+      var key    = peg$currPos * 205 + 29,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4918,7 +4949,7 @@ module.exports = (function() {
     function peg$parsePostfixOperators() {
       var s0;
 
-      var key    = peg$currPos * 204 + 30,
+      var key    = peg$currPos * 205 + 30,
           cached = peg$cache[key];
 
       if (cached) {
@@ -4969,7 +5000,7 @@ module.exports = (function() {
     function peg$parsepostfixExpressionNoImplicitObjectCall() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 31,
+      var key    = peg$currPos * 205 + 31,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5007,7 +5038,7 @@ module.exports = (function() {
     function peg$parseleftHandSideExpression() {
       var s0;
 
-      var key    = peg$currPos * 204 + 32,
+      var key    = peg$currPos * 205 + 32,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5028,7 +5059,7 @@ module.exports = (function() {
     function peg$parseargumentList() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 33,
+      var key    = peg$currPos * 205 + 33,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5109,7 +5140,7 @@ module.exports = (function() {
     function peg$parseargumentListContents() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 34,
+      var key    = peg$currPos * 205 + 34,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5270,7 +5301,7 @@ module.exports = (function() {
     function peg$parseargument() {
       var s0;
 
-      var key    = peg$currPos * 204 + 35,
+      var key    = peg$currPos * 205 + 35,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5291,7 +5322,7 @@ module.exports = (function() {
     function peg$parsesecondaryArgumentList() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11;
 
-      var key    = peg$currPos * 204 + 36,
+      var key    = peg$currPos * 205 + 36,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5535,7 +5566,7 @@ module.exports = (function() {
     function peg$parsesecondaryArgument() {
       var s0;
 
-      var key    = peg$currPos * 204 + 37,
+      var key    = peg$currPos * 205 + 37,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5559,7 +5590,7 @@ module.exports = (function() {
     function peg$parseleftHandSideExpressionNoImplicitObjectCall() {
       var s0;
 
-      var key    = peg$currPos * 204 + 38,
+      var key    = peg$currPos * 205 + 38,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5580,7 +5611,7 @@ module.exports = (function() {
     function peg$parsesecondaryArgumentListNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11;
 
-      var key    = peg$currPos * 204 + 39,
+      var key    = peg$currPos * 205 + 39,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5755,7 +5786,7 @@ module.exports = (function() {
     function peg$parsesecondaryArgumentNoImplicitObjectCall() {
       var s0;
 
-      var key    = peg$currPos * 204 + 40,
+      var key    = peg$currPos * 205 + 40,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5776,7 +5807,7 @@ module.exports = (function() {
     function peg$parsecallExpression() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 41,
+      var key    = peg$currPos * 205 + 41,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5785,43 +5816,20 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      s1 = peg$parsememberExpression();
+      s1 = peg$parseSUPER();
       if (s1 !== peg$FAILED) {
         s2 = peg$parsecallExpressionAccesses();
         if (s2 === peg$FAILED) {
           s2 = peg$c1;
         }
         if (s2 !== peg$FAILED) {
-          s3 = peg$currPos;
-          if (input.charCodeAt(peg$currPos) === 63) {
-            s4 = peg$c22;
-            peg$currPos++;
-          } else {
-            s4 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c23); }
-          }
-          if (s4 === peg$FAILED) {
-            s4 = peg$c1;
-          }
-          if (s4 !== peg$FAILED) {
-            s5 = peg$parsesecondaryArgumentList();
-            if (s5 !== peg$FAILED) {
-              s4 = [s4, s5];
-              s3 = s4;
-            } else {
-              peg$currPos = s3;
-              s3 = peg$c0;
-            }
-          } else {
-            peg$currPos = s3;
-            s3 = peg$c0;
-          }
+          s3 = peg$parsesecondaryArgumentList();
           if (s3 === peg$FAILED) {
             s3 = peg$c1;
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c86(s1, s2, s3);
+            s1 = peg$c86(s2, s3);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -5835,6 +5843,59 @@ module.exports = (function() {
         peg$currPos = s0;
         s0 = peg$c0;
       }
+      if (s0 === peg$FAILED) {
+        s0 = peg$currPos;
+        s1 = peg$parsememberExpression();
+        if (s1 !== peg$FAILED) {
+          s2 = peg$parsecallExpressionAccesses();
+          if (s2 === peg$FAILED) {
+            s2 = peg$c1;
+          }
+          if (s2 !== peg$FAILED) {
+            s3 = peg$currPos;
+            if (input.charCodeAt(peg$currPos) === 63) {
+              s4 = peg$c22;
+              peg$currPos++;
+            } else {
+              s4 = peg$FAILED;
+              if (peg$silentFails === 0) { peg$fail(peg$c23); }
+            }
+            if (s4 === peg$FAILED) {
+              s4 = peg$c1;
+            }
+            if (s4 !== peg$FAILED) {
+              s5 = peg$parsesecondaryArgumentList();
+              if (s5 !== peg$FAILED) {
+                s4 = [s4, s5];
+                s3 = s4;
+              } else {
+                peg$currPos = s3;
+                s3 = peg$c0;
+              }
+            } else {
+              peg$currPos = s3;
+              s3 = peg$c0;
+            }
+            if (s3 === peg$FAILED) {
+              s3 = peg$c1;
+            }
+            if (s3 !== peg$FAILED) {
+              peg$reportedPos = s0;
+              s1 = peg$c87(s1, s2, s3);
+              s0 = s1;
+            } else {
+              peg$currPos = s0;
+              s0 = peg$c0;
+            }
+          } else {
+            peg$currPos = s0;
+            s0 = peg$c0;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$c0;
+        }
+      }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
 
@@ -5844,7 +5905,7 @@ module.exports = (function() {
     function peg$parsecallExpressionAccesses() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 42,
+      var key    = peg$currPos * 205 + 42,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5860,7 +5921,7 @@ module.exports = (function() {
           s3 = peg$parseDEDENT();
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c87(s2);
+            s1 = peg$c88(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -5899,7 +5960,7 @@ module.exports = (function() {
           }
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c88(s1, s2);
+            s1 = peg$c89(s1, s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -5919,7 +5980,7 @@ module.exports = (function() {
     function peg$parsecallExpressionNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 43,
+      var key    = peg$currPos * 205 + 43,
           cached = peg$cache[key];
 
       if (cached) {
@@ -5928,51 +5989,20 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      s1 = peg$parsememberExpressionNoImplicitObjectCall();
+      s1 = peg$parseSUPER();
       if (s1 !== peg$FAILED) {
-        s2 = [];
-        s3 = peg$parseargumentList();
-        if (s3 === peg$FAILED) {
-          s3 = peg$parseMemberAccessOps();
-        }
-        while (s3 !== peg$FAILED) {
-          s2.push(s3);
-          s3 = peg$parseargumentList();
-          if (s3 === peg$FAILED) {
-            s3 = peg$parseMemberAccessOps();
-          }
+        s2 = peg$parsecallExpressionAccesses();
+        if (s2 === peg$FAILED) {
+          s2 = peg$c1;
         }
         if (s2 !== peg$FAILED) {
-          s3 = peg$currPos;
-          if (input.charCodeAt(peg$currPos) === 63) {
-            s4 = peg$c22;
-            peg$currPos++;
-          } else {
-            s4 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c23); }
-          }
-          if (s4 === peg$FAILED) {
-            s4 = peg$c1;
-          }
-          if (s4 !== peg$FAILED) {
-            s5 = peg$parsesecondaryArgumentListNoImplicitObjectCall();
-            if (s5 !== peg$FAILED) {
-              s4 = [s4, s5];
-              s3 = s4;
-            } else {
-              peg$currPos = s3;
-              s3 = peg$c0;
-            }
-          } else {
-            peg$currPos = s3;
-            s3 = peg$c0;
-          }
+          s3 = peg$parsesecondaryArgumentList();
           if (s3 === peg$FAILED) {
             s3 = peg$c1;
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c86(s1, s2, s3);
+            s1 = peg$c86(s2, s3);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -5986,6 +6016,67 @@ module.exports = (function() {
         peg$currPos = s0;
         s0 = peg$c0;
       }
+      if (s0 === peg$FAILED) {
+        s0 = peg$currPos;
+        s1 = peg$parsememberExpressionNoImplicitObjectCall();
+        if (s1 !== peg$FAILED) {
+          s2 = [];
+          s3 = peg$parseargumentList();
+          if (s3 === peg$FAILED) {
+            s3 = peg$parseMemberAccessOps();
+          }
+          while (s3 !== peg$FAILED) {
+            s2.push(s3);
+            s3 = peg$parseargumentList();
+            if (s3 === peg$FAILED) {
+              s3 = peg$parseMemberAccessOps();
+            }
+          }
+          if (s2 !== peg$FAILED) {
+            s3 = peg$currPos;
+            if (input.charCodeAt(peg$currPos) === 63) {
+              s4 = peg$c22;
+              peg$currPos++;
+            } else {
+              s4 = peg$FAILED;
+              if (peg$silentFails === 0) { peg$fail(peg$c23); }
+            }
+            if (s4 === peg$FAILED) {
+              s4 = peg$c1;
+            }
+            if (s4 !== peg$FAILED) {
+              s5 = peg$parsesecondaryArgumentListNoImplicitObjectCall();
+              if (s5 !== peg$FAILED) {
+                s4 = [s4, s5];
+                s3 = s4;
+              } else {
+                peg$currPos = s3;
+                s3 = peg$c0;
+              }
+            } else {
+              peg$currPos = s3;
+              s3 = peg$c0;
+            }
+            if (s3 === peg$FAILED) {
+              s3 = peg$c1;
+            }
+            if (s3 !== peg$FAILED) {
+              peg$reportedPos = s0;
+              s1 = peg$c87(s1, s2, s3);
+              s0 = s1;
+            } else {
+              peg$currPos = s0;
+              s0 = peg$c0;
+            }
+          } else {
+            peg$currPos = s0;
+            s0 = peg$c0;
+          }
+        } else {
+          peg$currPos = s0;
+          s0 = peg$c0;
+        }
+      }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
 
@@ -5995,7 +6086,7 @@ module.exports = (function() {
     function peg$parsenewExpression() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 44,
+      var key    = peg$currPos * 205 + 44,
           cached = peg$cache[key];
 
       if (cached) {
@@ -6019,7 +6110,7 @@ module.exports = (function() {
             }
             if (s3 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c89(s3);
+              s1 = peg$c90(s3);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -6043,7 +6134,7 @@ module.exports = (function() {
     function peg$parsenewExpressionNoImplicitObjectCall() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 45,
+      var key    = peg$currPos * 205 + 45,
           cached = peg$cache[key];
 
       if (cached) {
@@ -6067,7 +6158,7 @@ module.exports = (function() {
             }
             if (s3 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c89(s3);
+              s1 = peg$c90(s3);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -6091,7 +6182,7 @@ module.exports = (function() {
     function peg$parsememberExpression() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 46,
+      var key    = peg$currPos * 205 + 46,
           cached = peg$cache[key];
 
       if (cached) {
@@ -6112,7 +6203,7 @@ module.exports = (function() {
               s5 = peg$parseargumentList();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s1;
-                s2 = peg$c90(s4, s5);
+                s2 = peg$c91(s4, s5);
                 s1 = s2;
               } else {
                 peg$currPos = s1;
@@ -6140,7 +6231,7 @@ module.exports = (function() {
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c91(s1, s2);
+          s1 = peg$c92(s1, s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -6161,7 +6252,7 @@ module.exports = (function() {
               s4 = peg$parsesecondaryArgumentList();
               if (s4 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c92(s3, s4);
+                s1 = peg$c93(s3, s4);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -6189,7 +6280,7 @@ module.exports = (function() {
     function peg$parsememberAccess() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 47,
+      var key    = peg$currPos * 205 + 47,
           cached = peg$cache[key];
 
       if (cached) {
@@ -6210,7 +6301,7 @@ module.exports = (function() {
               s5 = peg$parseargumentList();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s1;
-                s2 = peg$c90(s4, s5);
+                s2 = peg$c91(s4, s5);
                 s1 = s2;
               } else {
                 peg$currPos = s1;
@@ -6276,7 +6367,7 @@ module.exports = (function() {
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c93(s1, s2);
+          s1 = peg$c94(s1, s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -6298,7 +6389,7 @@ module.exports = (function() {
     function peg$parseMemberAccessOps() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
 
-      var key    = peg$currPos * 204 + 48,
+      var key    = peg$currPos * 205 + 48,
           cached = peg$cache[key];
 
       if (cached) {
@@ -6310,11 +6401,11 @@ module.exports = (function() {
       s1 = peg$parseTERMINDENT();
       if (s1 !== peg$FAILED) {
         if (input.charCodeAt(peg$currPos) === 46) {
-          s2 = peg$c94;
+          s2 = peg$c95;
           peg$currPos++;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c95); }
+          if (peg$silentFails === 0) { peg$fail(peg$c96); }
         }
         if (s2 !== peg$FAILED) {
           s3 = peg$parse_();
@@ -6331,7 +6422,7 @@ module.exports = (function() {
                 s6 = peg$parseDEDENT();
                 if (s6 !== peg$FAILED) {
                   peg$reportedPos = s0;
-                  s1 = peg$c96(s4);
+                  s1 = peg$c97(s4);
                   s0 = s1;
                 } else {
                   peg$currPos = s0;
@@ -6367,11 +6458,11 @@ module.exports = (function() {
           s2 = peg$parse_();
           if (s2 !== peg$FAILED) {
             if (input.charCodeAt(peg$currPos) === 46) {
-              s3 = peg$c94;
+              s3 = peg$c95;
               peg$currPos++;
             } else {
               s3 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c95); }
+              if (peg$silentFails === 0) { peg$fail(peg$c96); }
             }
             if (s3 !== peg$FAILED) {
               s4 = peg$parseTERMINATOR();
@@ -6384,7 +6475,7 @@ module.exports = (function() {
                   s6 = peg$parseidentifierName();
                   if (s6 !== peg$FAILED) {
                     peg$reportedPos = s0;
-                    s1 = peg$c96(s6);
+                    s1 = peg$c97(s6);
                     s0 = s1;
                   } else {
                     peg$currPos = s0;
@@ -6412,12 +6503,12 @@ module.exports = (function() {
         }
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
-          if (input.substr(peg$currPos, 2) === peg$c97) {
-            s1 = peg$c97;
+          if (input.substr(peg$currPos, 2) === peg$c98) {
+            s1 = peg$c98;
             peg$currPos += 2;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c98); }
+            if (peg$silentFails === 0) { peg$fail(peg$c99); }
           }
           if (s1 !== peg$FAILED) {
             s2 = peg$parse_();
@@ -6425,7 +6516,7 @@ module.exports = (function() {
               s3 = peg$parseidentifierName();
               if (s3 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c99(s3);
+                s1 = peg$c100(s3);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -6442,11 +6533,11 @@ module.exports = (function() {
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 91) {
-              s1 = peg$c100;
+              s1 = peg$c101;
               peg$currPos++;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c101); }
+              if (peg$silentFails === 0) { peg$fail(peg$c102); }
             }
             if (s1 !== peg$FAILED) {
               s2 = peg$parse_();
@@ -6456,15 +6547,15 @@ module.exports = (function() {
                   s4 = peg$parse_();
                   if (s4 !== peg$FAILED) {
                     if (input.charCodeAt(peg$currPos) === 93) {
-                      s5 = peg$c102;
+                      s5 = peg$c103;
                       peg$currPos++;
                     } else {
                       s5 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c104); }
                     }
                     if (s5 !== peg$FAILED) {
                       peg$reportedPos = s0;
-                      s1 = peg$c104(s3);
+                      s1 = peg$c105(s3);
                       s0 = s1;
                     } else {
                       peg$currPos = s0;
@@ -6488,12 +6579,12 @@ module.exports = (function() {
             }
             if (s0 === peg$FAILED) {
               s0 = peg$currPos;
-              if (input.substr(peg$currPos, 2) === peg$c105) {
-                s1 = peg$c105;
+              if (input.substr(peg$currPos, 2) === peg$c106) {
+                s1 = peg$c106;
                 peg$currPos += 2;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c106); }
+                if (peg$silentFails === 0) { peg$fail(peg$c107); }
               }
               if (s1 !== peg$FAILED) {
                 s2 = peg$parse_();
@@ -6503,15 +6594,15 @@ module.exports = (function() {
                     s4 = peg$parse_();
                     if (s4 !== peg$FAILED) {
                       if (input.charCodeAt(peg$currPos) === 93) {
-                        s5 = peg$c102;
+                        s5 = peg$c103;
                         peg$currPos++;
                       } else {
                         s5 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c104); }
                       }
                       if (s5 !== peg$FAILED) {
                         peg$reportedPos = s0;
-                        s1 = peg$c107(s3);
+                        s1 = peg$c108(s3);
                         s0 = s1;
                       } else {
                         peg$currPos = s0;
@@ -6535,12 +6626,12 @@ module.exports = (function() {
               }
               if (s0 === peg$FAILED) {
                 s0 = peg$currPos;
-                if (input.substr(peg$currPos, 2) === peg$c108) {
-                  s1 = peg$c108;
+                if (input.substr(peg$currPos, 2) === peg$c109) {
+                  s1 = peg$c109;
                   peg$currPos += 2;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c109); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c110); }
                 }
                 if (s1 !== peg$FAILED) {
                   s2 = peg$parse_();
@@ -6548,7 +6639,7 @@ module.exports = (function() {
                     s3 = peg$parseidentifierName();
                     if (s3 !== peg$FAILED) {
                       peg$reportedPos = s0;
-                      s1 = peg$c110(s3);
+                      s1 = peg$c111(s3);
                       s0 = s1;
                     } else {
                       peg$currPos = s0;
@@ -6564,12 +6655,12 @@ module.exports = (function() {
                 }
                 if (s0 === peg$FAILED) {
                   s0 = peg$currPos;
-                  if (input.substr(peg$currPos, 3) === peg$c111) {
-                    s1 = peg$c111;
+                  if (input.substr(peg$currPos, 3) === peg$c112) {
+                    s1 = peg$c112;
                     peg$currPos += 3;
                   } else {
                     s1 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c112); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c113); }
                   }
                   if (s1 !== peg$FAILED) {
                     s2 = peg$parse_();
@@ -6579,15 +6670,15 @@ module.exports = (function() {
                         s4 = peg$parse_();
                         if (s4 !== peg$FAILED) {
                           if (input.charCodeAt(peg$currPos) === 93) {
-                            s5 = peg$c102;
+                            s5 = peg$c103;
                             peg$currPos++;
                           } else {
                             s5 = peg$FAILED;
-                            if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                            if (peg$silentFails === 0) { peg$fail(peg$c104); }
                           }
                           if (s5 !== peg$FAILED) {
                             peg$reportedPos = s0;
-                            s1 = peg$c113(s3);
+                            s1 = peg$c114(s3);
                             s0 = s1;
                           } else {
                             peg$currPos = s0;
@@ -6611,12 +6702,12 @@ module.exports = (function() {
                   }
                   if (s0 === peg$FAILED) {
                     s0 = peg$currPos;
-                    if (input.substr(peg$currPos, 3) === peg$c114) {
-                      s1 = peg$c114;
+                    if (input.substr(peg$currPos, 3) === peg$c115) {
+                      s1 = peg$c115;
                       peg$currPos += 3;
                     } else {
                       s1 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c115); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c116); }
                     }
                     if (s1 !== peg$FAILED) {
                       s2 = peg$parse_();
@@ -6624,7 +6715,7 @@ module.exports = (function() {
                         s3 = peg$parseidentifierName();
                         if (s3 !== peg$FAILED) {
                           peg$reportedPos = s0;
-                          s1 = peg$c116(s3);
+                          s1 = peg$c117(s3);
                           s0 = s1;
                         } else {
                           peg$currPos = s0;
@@ -6640,12 +6731,12 @@ module.exports = (function() {
                     }
                     if (s0 === peg$FAILED) {
                       s0 = peg$currPos;
-                      if (input.substr(peg$currPos, 4) === peg$c117) {
-                        s1 = peg$c117;
+                      if (input.substr(peg$currPos, 4) === peg$c118) {
+                        s1 = peg$c118;
                         peg$currPos += 4;
                       } else {
                         s1 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c118); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c119); }
                       }
                       if (s1 !== peg$FAILED) {
                         s2 = peg$parse_();
@@ -6655,15 +6746,15 @@ module.exports = (function() {
                             s4 = peg$parse_();
                             if (s4 !== peg$FAILED) {
                               if (input.charCodeAt(peg$currPos) === 93) {
-                                s5 = peg$c102;
+                                s5 = peg$c103;
                                 peg$currPos++;
                               } else {
                                 s5 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c104); }
                               }
                               if (s5 !== peg$FAILED) {
                                 peg$reportedPos = s0;
-                                s1 = peg$c119(s3);
+                                s1 = peg$c120(s3);
                                 s0 = s1;
                               } else {
                                 peg$currPos = s0;
@@ -6688,11 +6779,11 @@ module.exports = (function() {
                       if (s0 === peg$FAILED) {
                         s0 = peg$currPos;
                         if (input.charCodeAt(peg$currPos) === 91) {
-                          s1 = peg$c100;
+                          s1 = peg$c101;
                           peg$currPos++;
                         } else {
                           s1 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c101); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c102); }
                         }
                         if (s1 !== peg$FAILED) {
                           s2 = peg$parse_();
@@ -6704,20 +6795,20 @@ module.exports = (function() {
                             if (s3 !== peg$FAILED) {
                               s4 = peg$parse_();
                               if (s4 !== peg$FAILED) {
-                                if (input.substr(peg$currPos, 2) === peg$c120) {
-                                  s5 = peg$c120;
+                                if (input.substr(peg$currPos, 2) === peg$c121) {
+                                  s5 = peg$c121;
                                   peg$currPos += 2;
                                 } else {
                                   s5 = peg$FAILED;
-                                  if (peg$silentFails === 0) { peg$fail(peg$c121); }
+                                  if (peg$silentFails === 0) { peg$fail(peg$c122); }
                                 }
                                 if (s5 !== peg$FAILED) {
                                   if (input.charCodeAt(peg$currPos) === 46) {
-                                    s6 = peg$c94;
+                                    s6 = peg$c95;
                                     peg$currPos++;
                                   } else {
                                     s6 = peg$FAILED;
-                                    if (peg$silentFails === 0) { peg$fail(peg$c95); }
+                                    if (peg$silentFails === 0) { peg$fail(peg$c96); }
                                   }
                                   if (s6 === peg$FAILED) {
                                     s6 = peg$c1;
@@ -6733,15 +6824,15 @@ module.exports = (function() {
                                         s9 = peg$parse_();
                                         if (s9 !== peg$FAILED) {
                                           if (input.charCodeAt(peg$currPos) === 93) {
-                                            s10 = peg$c102;
+                                            s10 = peg$c103;
                                             peg$currPos++;
                                           } else {
                                             s10 = peg$FAILED;
-                                            if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                                            if (peg$silentFails === 0) { peg$fail(peg$c104); }
                                           }
                                           if (s10 !== peg$FAILED) {
                                             peg$reportedPos = s0;
-                                            s1 = peg$c122(s3, s6, s8);
+                                            s1 = peg$c123(s3, s6, s8);
                                             s0 = s1;
                                           } else {
                                             peg$currPos = s0;
@@ -6801,7 +6892,7 @@ module.exports = (function() {
     function peg$parsememberExpressionNoImplicitObjectCall() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 49,
+      var key    = peg$currPos * 205 + 49,
           cached = peg$cache[key];
 
       if (cached) {
@@ -6822,7 +6913,7 @@ module.exports = (function() {
               s5 = peg$parseargumentList();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s1;
-                s2 = peg$c90(s4, s5);
+                s2 = peg$c91(s4, s5);
                 s1 = s2;
               } else {
                 peg$currPos = s1;
@@ -6850,7 +6941,7 @@ module.exports = (function() {
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c91(s1, s2);
+          s1 = peg$c92(s1, s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -6871,7 +6962,7 @@ module.exports = (function() {
               s4 = peg$parsesecondaryArgumentListNoImplicitObjectCall();
               if (s4 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c92(s3, s4);
+                s1 = peg$c93(s3, s4);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -6899,7 +6990,7 @@ module.exports = (function() {
     function peg$parseprimaryExpression() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 50,
+      var key    = peg$currPos * 205 + 50,
           cached = peg$cache[key];
 
       if (cached) {
@@ -6923,16 +7014,16 @@ module.exports = (function() {
                   s1 = peg$parseTHIS();
                   if (s1 === peg$FAILED) {
                     if (input.charCodeAt(peg$currPos) === 64) {
-                      s1 = peg$c123;
+                      s1 = peg$c124;
                       peg$currPos++;
                     } else {
                       s1 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c124); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c125); }
                     }
                   }
                   if (s1 !== peg$FAILED) {
                     peg$reportedPos = s0;
-                    s1 = peg$c125();
+                    s1 = peg$c126();
                   }
                   s0 = s1;
                   if (s0 === peg$FAILED) {
@@ -6981,7 +7072,7 @@ module.exports = (function() {
                                               }
                                               if (s6 !== peg$FAILED) {
                                                 peg$reportedPos = s0;
-                                                s1 = peg$c126(s3);
+                                                s1 = peg$c127(s3);
                                                 s0 = s1;
                                               } else {
                                                 peg$currPos = s0;
@@ -7039,7 +7130,7 @@ module.exports = (function() {
                                                   }
                                                   if (s7 !== peg$FAILED) {
                                                     peg$reportedPos = s0;
-                                                    s1 = peg$c126(s3);
+                                                    s1 = peg$c127(s3);
                                                     s0 = s1;
                                                   } else {
                                                     peg$currPos = s0;
@@ -7094,7 +7185,7 @@ module.exports = (function() {
     function peg$parsecontextVar() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 51,
+      var key    = peg$currPos * 205 + 51,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7105,22 +7196,22 @@ module.exports = (function() {
       s0 = peg$currPos;
       s1 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 64) {
-        s2 = peg$c123;
+        s2 = peg$c124;
         peg$currPos++;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c124); }
+        if (peg$silentFails === 0) { peg$fail(peg$c125); }
       }
       if (s2 !== peg$FAILED) {
         peg$reportedPos = s1;
-        s2 = peg$c125();
+        s2 = peg$c126();
       }
       s1 = s2;
       if (s1 !== peg$FAILED) {
         s2 = peg$parseidentifierName();
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c127(s1, s2);
+          s1 = peg$c128(s1, s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -7139,7 +7230,7 @@ module.exports = (function() {
     function peg$parseJSLiteral() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 52,
+      var key    = peg$currPos * 205 + 52,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7149,30 +7240,30 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 96) {
-        s1 = peg$c128;
+        s1 = peg$c129;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c129); }
+        if (peg$silentFails === 0) { peg$fail(peg$c130); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$currPos;
         s3 = [];
-        if (peg$c130.test(input.charAt(peg$currPos))) {
+        if (peg$c131.test(input.charAt(peg$currPos))) {
           s4 = input.charAt(peg$currPos);
           peg$currPos++;
         } else {
           s4 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c131); }
+          if (peg$silentFails === 0) { peg$fail(peg$c132); }
         }
         while (s4 !== peg$FAILED) {
           s3.push(s4);
-          if (peg$c130.test(input.charAt(peg$currPos))) {
+          if (peg$c131.test(input.charAt(peg$currPos))) {
             s4 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s4 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c131); }
+            if (peg$silentFails === 0) { peg$fail(peg$c132); }
           }
         }
         if (s3 !== peg$FAILED) {
@@ -7181,15 +7272,15 @@ module.exports = (function() {
         s2 = s3;
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 96) {
-            s3 = peg$c128;
+            s3 = peg$c129;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c129); }
+            if (peg$silentFails === 0) { peg$fail(peg$c130); }
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c132(s2);
+            s1 = peg$c133(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -7212,7 +7303,7 @@ module.exports = (function() {
     function peg$parsespread() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 53,
+      var key    = peg$currPos * 205 + 53,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7223,16 +7314,16 @@ module.exports = (function() {
       s0 = peg$currPos;
       s1 = peg$parsepostfixExpression();
       if (s1 !== peg$FAILED) {
-        if (input.substr(peg$currPos, 3) === peg$c133) {
-          s2 = peg$c133;
+        if (input.substr(peg$currPos, 3) === peg$c134) {
+          s2 = peg$c134;
           peg$currPos += 3;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c134); }
+          if (peg$silentFails === 0) { peg$fail(peg$c135); }
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c135(s1);
+          s1 = peg$c136(s1);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -7251,7 +7342,7 @@ module.exports = (function() {
     function peg$parsespreadNoImplicitObjectCall() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 54,
+      var key    = peg$currPos * 205 + 54,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7262,16 +7353,16 @@ module.exports = (function() {
       s0 = peg$currPos;
       s1 = peg$parsepostfixExpressionNoImplicitObjectCall();
       if (s1 !== peg$FAILED) {
-        if (input.substr(peg$currPos, 3) === peg$c133) {
-          s2 = peg$c133;
+        if (input.substr(peg$currPos, 3) === peg$c134) {
+          s2 = peg$c134;
           peg$currPos += 3;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c134); }
+          if (peg$silentFails === 0) { peg$fail(peg$c135); }
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c135(s1);
+          s1 = peg$c136(s1);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -7290,7 +7381,7 @@ module.exports = (function() {
     function peg$parseconditional() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 55,
+      var key    = peg$currPos * 205 + 55,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7316,7 +7407,7 @@ module.exports = (function() {
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c136(s1, s3, s4, s5);
+                s1 = peg$c137(s1, s3, s4, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -7347,7 +7438,7 @@ module.exports = (function() {
     function peg$parseconditionalBody() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 56,
+      var key    = peg$currPos * 205 + 56,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7365,7 +7456,7 @@ module.exports = (function() {
             s4 = peg$parseDEDENT();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c137(s3);
+              s1 = peg$c138(s3);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -7399,7 +7490,7 @@ module.exports = (function() {
                 s5 = peg$parsestatement();
                 if (s5 !== peg$FAILED) {
                   peg$reportedPos = s0;
-                  s1 = peg$c138(s5);
+                  s1 = peg$c139(s5);
                   s0 = s1;
                 } else {
                   peg$currPos = s0;
@@ -7428,7 +7519,7 @@ module.exports = (function() {
             s2 = peg$parseTHEN();
             if (s2 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c139();
+              s1 = peg$c140();
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -7449,7 +7540,7 @@ module.exports = (function() {
     function peg$parseelseClause() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 57,
+      var key    = peg$currPos * 205 + 57,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7472,7 +7563,7 @@ module.exports = (function() {
               s5 = peg$parsefunctionBody();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c140(s5);
+                s1 = peg$c141(s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -7503,7 +7594,7 @@ module.exports = (function() {
     function peg$parsewhile() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 58,
+      var key    = peg$currPos * 205 + 58,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7524,7 +7615,7 @@ module.exports = (function() {
             s4 = peg$parseconditionalBody();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c141(s1, s3, s4);
+              s1 = peg$c142(s1, s3, s4);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -7551,7 +7642,7 @@ module.exports = (function() {
     function peg$parseloop() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 59,
+      var key    = peg$currPos * 205 + 59,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7565,7 +7656,7 @@ module.exports = (function() {
         s2 = peg$parseconditionalBody();
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c142(s2);
+          s1 = peg$c143(s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -7584,7 +7675,7 @@ module.exports = (function() {
     function peg$parsetry() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 60,
+      var key    = peg$currPos * 205 + 60,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7608,7 +7699,7 @@ module.exports = (function() {
             }
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c143(s2, s3, s4);
+              s1 = peg$c144(s2, s3, s4);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -7635,7 +7726,7 @@ module.exports = (function() {
     function peg$parsetryBody() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 61,
+      var key    = peg$currPos * 205 + 61,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7647,7 +7738,7 @@ module.exports = (function() {
       s1 = peg$parsefunctionBody();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c137(s1);
+        s1 = peg$c138(s1);
       }
       s0 = s1;
 
@@ -7659,7 +7750,7 @@ module.exports = (function() {
     function peg$parsecatchClause() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 62,
+      var key    = peg$currPos * 205 + 62,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7690,7 +7781,7 @@ module.exports = (function() {
                 }
                 if (s6 !== peg$FAILED) {
                   peg$reportedPos = s0;
-                  s1 = peg$c144(s5, s6);
+                  s1 = peg$c145(s5, s6);
                   s0 = s1;
                 } else {
                   peg$currPos = s0;
@@ -7725,7 +7816,7 @@ module.exports = (function() {
     function peg$parsefinallyClause() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 63,
+      var key    = peg$currPos * 205 + 63,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7749,7 +7840,7 @@ module.exports = (function() {
             }
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c145(s4);
+              s1 = peg$c146(s4);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -7776,7 +7867,7 @@ module.exports = (function() {
     function peg$parseclass() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 64,
+      var key    = peg$currPos * 205 + 64,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7842,7 +7933,7 @@ module.exports = (function() {
             s4 = peg$parseclassBody();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c146(s2, s3, s4);
+              s1 = peg$c147(s2, s3, s4);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -7869,7 +7960,7 @@ module.exports = (function() {
     function peg$parseclassBody() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 65,
+      var key    = peg$currPos * 205 + 65,
           cached = peg$cache[key];
 
       if (cached) {
@@ -7887,7 +7978,7 @@ module.exports = (function() {
             s4 = peg$parseDEDENT();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c140(s3);
+              s1 = peg$c141(s3);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -7964,7 +8055,7 @@ module.exports = (function() {
     function peg$parseclassBlock() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 66,
+      var key    = peg$currPos * 205 + 66,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8065,7 +8156,7 @@ module.exports = (function() {
     function peg$parseclassStatement() {
       var s0;
 
-      var key    = peg$currPos * 204 + 67,
+      var key    = peg$currPos * 205 + 67,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8092,7 +8183,7 @@ module.exports = (function() {
     function peg$parseconstructor() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 68,
+      var key    = peg$currPos * 205 + 68,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8105,7 +8196,7 @@ module.exports = (function() {
       s2 = peg$parseObjectInitialiserKeys();
       if (s2 !== peg$FAILED) {
         peg$reportedPos = peg$currPos;
-        s3 = peg$c147(s2);
+        s3 = peg$c148(s2);
         if (s3) {
           s3 = peg$c6;
         } else {
@@ -8126,11 +8217,11 @@ module.exports = (function() {
         s2 = peg$parse_();
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 58) {
-            s3 = peg$c148;
+            s3 = peg$c149;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c149); }
+            if (peg$silentFails === 0) { peg$fail(peg$c150); }
           }
           if (s3 !== peg$FAILED) {
             s4 = peg$parse_();
@@ -8186,7 +8277,7 @@ module.exports = (function() {
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c150(s2, s5);
+                s1 = peg$c151(s2, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -8217,7 +8308,7 @@ module.exports = (function() {
     function peg$parsestaticAssignment() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 69,
+      var key    = peg$currPos * 205 + 69,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8231,11 +8322,11 @@ module.exports = (function() {
         s2 = peg$parse_();
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 58) {
-            s3 = peg$c148;
+            s3 = peg$c149;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c149); }
+            if (peg$silentFails === 0) { peg$fail(peg$c150); }
           }
           if (s3 !== peg$FAILED) {
             s4 = peg$parse_();
@@ -8248,7 +8339,7 @@ module.exports = (function() {
                   s8 = peg$parseDEDENT();
                   if (s8 !== peg$FAILED) {
                     peg$reportedPos = s5;
-                    s6 = peg$c151(s7);
+                    s6 = peg$c152(s7);
                     s5 = s6;
                   } else {
                     peg$currPos = s5;
@@ -8274,7 +8365,7 @@ module.exports = (function() {
                     s8 = peg$parseexpression();
                     if (s8 !== peg$FAILED) {
                       peg$reportedPos = s5;
-                      s6 = peg$c151(s8);
+                      s6 = peg$c152(s8);
                       s5 = s6;
                     } else {
                       peg$currPos = s5;
@@ -8291,7 +8382,7 @@ module.exports = (function() {
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c152(s1, s5);
+                s1 = peg$c153(s1, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -8322,7 +8413,7 @@ module.exports = (function() {
     function peg$parseclassProtoAssignment() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 70,
+      var key    = peg$currPos * 205 + 70,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8336,11 +8427,11 @@ module.exports = (function() {
         s2 = peg$parse_();
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 58) {
-            s3 = peg$c148;
+            s3 = peg$c149;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c149); }
+            if (peg$silentFails === 0) { peg$fail(peg$c150); }
           }
           if (s3 !== peg$FAILED) {
             s4 = peg$parse_();
@@ -8353,7 +8444,7 @@ module.exports = (function() {
                   s8 = peg$parseDEDENT();
                   if (s8 !== peg$FAILED) {
                     peg$reportedPos = s5;
-                    s6 = peg$c151(s7);
+                    s6 = peg$c152(s7);
                     s5 = s6;
                   } else {
                     peg$currPos = s5;
@@ -8372,7 +8463,7 @@ module.exports = (function() {
                 s6 = peg$parsesingleLineImplicitObjectLiteral();
                 if (s6 !== peg$FAILED) {
                   peg$reportedPos = s5;
-                  s6 = peg$c151(s6);
+                  s6 = peg$c152(s6);
                 }
                 s5 = s6;
                 if (s5 === peg$FAILED) {
@@ -8387,7 +8478,7 @@ module.exports = (function() {
                       s8 = peg$parsesecondaryExpression();
                       if (s8 !== peg$FAILED) {
                         peg$reportedPos = s5;
-                        s6 = peg$c151(s8);
+                        s6 = peg$c152(s8);
                         s5 = s6;
                       } else {
                         peg$currPos = s5;
@@ -8405,7 +8496,7 @@ module.exports = (function() {
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c153(s1, s5);
+                s1 = peg$c154(s1, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -8436,7 +8527,7 @@ module.exports = (function() {
     function peg$parseforOf() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15;
 
-      var key    = peg$currPos * 204 + 71,
+      var key    = peg$currPos * 205 + 71,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8553,7 +8644,7 @@ module.exports = (function() {
                             s12 = peg$parseconditionalBody();
                             if (s12 !== peg$FAILED) {
                               peg$reportedPos = s0;
-                              s1 = peg$c154(s3, s4, s6, s9, s11, s12);
+                              s1 = peg$c155(s3, s4, s6, s9, s11, s12);
                               s0 = s1;
                             } else {
                               peg$currPos = s0;
@@ -8612,7 +8703,7 @@ module.exports = (function() {
     function peg$parseforIn() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13;
 
-      var key    = peg$currPos * 204 + 72,
+      var key    = peg$currPos * 205 + 72,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8762,7 +8853,7 @@ module.exports = (function() {
                         s10 = peg$parseconditionalBody();
                         if (s10 !== peg$FAILED) {
                           peg$reportedPos = s0;
-                          s1 = peg$c155(s3, s6, s8, s9, s10);
+                          s1 = peg$c156(s3, s6, s8, s9, s10);
                           s0 = s1;
                         } else {
                           peg$currPos = s0;
@@ -8813,7 +8904,7 @@ module.exports = (function() {
     function peg$parseswitch() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 73,
+      var key    = peg$currPos * 205 + 73,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8837,7 +8928,7 @@ module.exports = (function() {
             s4 = peg$parseswitchBody();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c156(s3, s4);
+              s1 = peg$c157(s3, s4);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -8864,7 +8955,7 @@ module.exports = (function() {
     function peg$parseswitchBody() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 74,
+      var key    = peg$currPos * 205 + 74,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8882,7 +8973,7 @@ module.exports = (function() {
             s4 = peg$parseDEDENT();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c157(s3);
+              s1 = peg$c158(s3);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -8911,7 +9002,7 @@ module.exports = (function() {
               s4 = peg$parsecase();
               if (s4 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c158(s4);
+                s1 = peg$c159(s4);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -8936,7 +9027,7 @@ module.exports = (function() {
             s2 = peg$parseTHEN();
             if (s2 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c159();
+              s1 = peg$c160();
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -8957,7 +9048,7 @@ module.exports = (function() {
     function peg$parseswitchBlock() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 75,
+      var key    = peg$currPos * 205 + 75,
           cached = peg$cache[key];
 
       if (cached) {
@@ -8979,7 +9070,7 @@ module.exports = (function() {
               s7 = peg$parsecase();
               if (s7 !== peg$FAILED) {
                 peg$reportedPos = s3;
-                s4 = peg$c160(s7);
+                s4 = peg$c161(s7);
                 s3 = s4;
               } else {
                 peg$currPos = s3;
@@ -9009,7 +9100,7 @@ module.exports = (function() {
                 s7 = peg$parsecase();
                 if (s7 !== peg$FAILED) {
                   peg$reportedPos = s3;
-                  s4 = peg$c160(s7);
+                  s4 = peg$c161(s7);
                   s3 = s4;
                 } else {
                   peg$currPos = s3;
@@ -9067,7 +9158,7 @@ module.exports = (function() {
             }
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c161(s1, s2, s3);
+              s1 = peg$c162(s1, s2, s3);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -9094,7 +9185,7 @@ module.exports = (function() {
     function peg$parsecase() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 76,
+      var key    = peg$currPos * 205 + 76,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9112,7 +9203,7 @@ module.exports = (function() {
             s4 = peg$parseconditionalBody();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c162(s3, s4);
+              s1 = peg$c163(s3, s4);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -9139,7 +9230,7 @@ module.exports = (function() {
     function peg$parsecaseConditions() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 77,
+      var key    = peg$currPos * 205 + 77,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9167,7 +9258,7 @@ module.exports = (function() {
               s7 = peg$parseassignmentExpressionNoImplicitObjectCall();
               if (s7 !== peg$FAILED) {
                 peg$reportedPos = s3;
-                s4 = peg$c160(s7);
+                s4 = peg$c161(s7);
                 s3 = s4;
               } else {
                 peg$currPos = s3;
@@ -9203,7 +9294,7 @@ module.exports = (function() {
                 s7 = peg$parseassignmentExpressionNoImplicitObjectCall();
                 if (s7 !== peg$FAILED) {
                   peg$reportedPos = s3;
-                  s4 = peg$c160(s7);
+                  s4 = peg$c161(s7);
                   s3 = s4;
                 } else {
                   peg$currPos = s3;
@@ -9224,7 +9315,7 @@ module.exports = (function() {
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c163(s1, s2);
+          s1 = peg$c164(s1, s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -9243,7 +9334,7 @@ module.exports = (function() {
     function peg$parsefunctionLiteral() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 78,
+      var key    = peg$currPos * 205 + 78,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9273,7 +9364,7 @@ module.exports = (function() {
                 s8 = peg$parseTERMINATOR();
                 if (s8 !== peg$FAILED) {
                   peg$reportedPos = s4;
-                  s5 = peg$c164(s6);
+                  s5 = peg$c165(s6);
                   s4 = s5;
                 } else {
                   peg$currPos = s4;
@@ -9311,7 +9402,7 @@ module.exports = (function() {
                 s7 = peg$parse_();
                 if (s7 !== peg$FAILED) {
                   peg$reportedPos = s1;
-                  s2 = peg$c164(s4);
+                  s2 = peg$c165(s4);
                   s1 = s2;
                 } else {
                   peg$currPos = s1;
@@ -9341,20 +9432,20 @@ module.exports = (function() {
         s1 = peg$c1;
       }
       if (s1 !== peg$FAILED) {
-        if (input.substr(peg$currPos, 2) === peg$c165) {
-          s2 = peg$c165;
+        if (input.substr(peg$currPos, 2) === peg$c166) {
+          s2 = peg$c166;
           peg$currPos += 2;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c166); }
+          if (peg$silentFails === 0) { peg$fail(peg$c167); }
         }
         if (s2 === peg$FAILED) {
-          if (input.substr(peg$currPos, 2) === peg$c167) {
-            s2 = peg$c167;
+          if (input.substr(peg$currPos, 2) === peg$c168) {
+            s2 = peg$c168;
             peg$currPos += 2;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c168); }
+            if (peg$silentFails === 0) { peg$fail(peg$c169); }
           }
         }
         if (s2 !== peg$FAILED) {
@@ -9364,7 +9455,7 @@ module.exports = (function() {
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c169(s1, s2, s3);
+            s1 = peg$c170(s1, s2, s3);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -9387,7 +9478,7 @@ module.exports = (function() {
     function peg$parsefunctionBody() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 79,
+      var key    = peg$currPos * 205 + 79,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9405,7 +9496,7 @@ module.exports = (function() {
             s4 = peg$parseDEDENT();
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c140(s3);
+              s1 = peg$c141(s3);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -9450,7 +9541,7 @@ module.exports = (function() {
     function peg$parseparameter() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 80,
+      var key    = peg$currPos * 205 + 80,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9476,7 +9567,7 @@ module.exports = (function() {
               s5 = peg$parsesecondaryExpression();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c170(s1, s5);
+                s1 = peg$c171(s1, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -9510,7 +9601,7 @@ module.exports = (function() {
     function peg$parserest() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 81,
+      var key    = peg$currPos * 205 + 81,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9521,19 +9612,19 @@ module.exports = (function() {
       s0 = peg$currPos;
       s1 = peg$parseAssignable();
       if (s1 !== peg$FAILED) {
-        if (input.substr(peg$currPos, 3) === peg$c133) {
-          s2 = peg$c133;
+        if (input.substr(peg$currPos, 3) === peg$c134) {
+          s2 = peg$c134;
           peg$currPos += 3;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c134); }
+          if (peg$silentFails === 0) { peg$fail(peg$c135); }
         }
         if (s2 === peg$FAILED) {
           s2 = peg$c1;
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c171(s1, s2);
+          s1 = peg$c172(s1, s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -9552,7 +9643,7 @@ module.exports = (function() {
     function peg$parseparameterList() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 82,
+      var key    = peg$currPos * 205 + 82,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9696,7 +9787,7 @@ module.exports = (function() {
     function peg$parserange() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
 
-      var key    = peg$currPos * 204 + 83,
+      var key    = peg$currPos * 205 + 83,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9706,11 +9797,11 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 91) {
-        s1 = peg$c100;
+        s1 = peg$c101;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c101); }
+        if (peg$silentFails === 0) { peg$fail(peg$c102); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$parse_();
@@ -9719,20 +9810,20 @@ module.exports = (function() {
           if (s3 !== peg$FAILED) {
             s4 = peg$parse_();
             if (s4 !== peg$FAILED) {
-              if (input.substr(peg$currPos, 2) === peg$c120) {
-                s5 = peg$c120;
+              if (input.substr(peg$currPos, 2) === peg$c121) {
+                s5 = peg$c121;
                 peg$currPos += 2;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c121); }
+                if (peg$silentFails === 0) { peg$fail(peg$c122); }
               }
               if (s5 !== peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 46) {
-                  s6 = peg$c94;
+                  s6 = peg$c95;
                   peg$currPos++;
                 } else {
                   s6 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c95); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c96); }
                 }
                 if (s6 === peg$FAILED) {
                   s6 = peg$c1;
@@ -9745,15 +9836,15 @@ module.exports = (function() {
                       s9 = peg$parse_();
                       if (s9 !== peg$FAILED) {
                         if (input.charCodeAt(peg$currPos) === 93) {
-                          s10 = peg$c102;
+                          s10 = peg$c103;
                           peg$currPos++;
                         } else {
                           s10 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c104); }
                         }
                         if (s10 !== peg$FAILED) {
                           peg$reportedPos = s0;
-                          s1 = peg$c172(s3, s6, s8);
+                          s1 = peg$c173(s3, s6, s8);
                           s0 = s1;
                         } else {
                           peg$currPos = s0;
@@ -9804,7 +9895,7 @@ module.exports = (function() {
     function peg$parsearrayLiteral() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 84,
+      var key    = peg$currPos * 205 + 84,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9814,11 +9905,11 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 91) {
-        s1 = peg$c100;
+        s1 = peg$c101;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c101); }
+        if (peg$silentFails === 0) { peg$fail(peg$c102); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$parsearrayLiteralBody();
@@ -9831,15 +9922,15 @@ module.exports = (function() {
             s4 = peg$parse_();
             if (s4 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 93) {
-                s5 = peg$c102;
+                s5 = peg$c103;
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                if (peg$silentFails === 0) { peg$fail(peg$c104); }
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c173(s2);
+                s1 = peg$c174(s2);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -9870,7 +9961,7 @@ module.exports = (function() {
     function peg$parsearrayLiteralBody() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 85,
+      var key    = peg$currPos * 205 + 85,
           cached = peg$cache[key];
 
       if (cached) {
@@ -9886,7 +9977,7 @@ module.exports = (function() {
           s3 = peg$parseDEDENT();
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c174(s2);
+            s1 = peg$c175(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -9910,7 +10001,7 @@ module.exports = (function() {
           }
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c175(s2);
+            s1 = peg$c176(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -9930,7 +10021,7 @@ module.exports = (function() {
     function peg$parsearrayLiteralMemberList() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 86,
+      var key    = peg$currPos * 205 + 86,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10037,7 +10128,7 @@ module.exports = (function() {
     function peg$parsearrayLiteralMember() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 87,
+      var key    = peg$currPos * 205 + 87,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10082,7 +10173,7 @@ module.exports = (function() {
     function peg$parsearrayLiteralMemberSeparator() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 88,
+      var key    = peg$currPos * 205 + 88,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10171,7 +10262,7 @@ module.exports = (function() {
     function peg$parseobjectLiteral() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 89,
+      var key    = peg$currPos * 205 + 89,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10181,11 +10272,11 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 123) {
-        s1 = peg$c176;
+        s1 = peg$c177;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c177); }
+        if (peg$silentFails === 0) { peg$fail(peg$c178); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$parseobjectLiteralBody();
@@ -10198,15 +10289,15 @@ module.exports = (function() {
             s4 = peg$parse_();
             if (s4 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 125) {
-                s5 = peg$c178;
+                s5 = peg$c179;
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c179); }
+                if (peg$silentFails === 0) { peg$fail(peg$c180); }
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c180(s2);
+                s1 = peg$c181(s2);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -10237,7 +10328,7 @@ module.exports = (function() {
     function peg$parseobjectLiteralBody() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 90,
+      var key    = peg$currPos * 205 + 90,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10253,7 +10344,7 @@ module.exports = (function() {
           s3 = peg$parseDEDENT();
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c174(s2);
+            s1 = peg$c175(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -10277,7 +10368,7 @@ module.exports = (function() {
           }
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c175(s2);
+            s1 = peg$c176(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -10297,7 +10388,7 @@ module.exports = (function() {
     function peg$parseobjectLiteralMemberList() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 91,
+      var key    = peg$currPos * 205 + 91,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10410,7 +10501,7 @@ module.exports = (function() {
     function peg$parseobjectLiteralMember() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 92,
+      var key    = peg$currPos * 205 + 92,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10424,7 +10515,7 @@ module.exports = (function() {
         s1 = peg$parsecontextVar();
         if (s1 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c181(s1);
+          s1 = peg$c182(s1);
         }
         s0 = s1;
         if (s0 === peg$FAILED) {
@@ -10432,7 +10523,7 @@ module.exports = (function() {
           s1 = peg$parseObjectInitialiserKeys();
           if (s1 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c182(s1);
+            s1 = peg$c183(s1);
           }
           s0 = s1;
         }
@@ -10446,7 +10537,7 @@ module.exports = (function() {
     function peg$parseObjectInitialiserKeys() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 93,
+      var key    = peg$currPos * 205 + 93,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10458,7 +10549,7 @@ module.exports = (function() {
       s1 = peg$parseidentifierName();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c183(s1);
+        s1 = peg$c184(s1);
       }
       s0 = s1;
       if (s0 === peg$FAILED) {
@@ -10476,7 +10567,7 @@ module.exports = (function() {
     function peg$parseimplicitObjectLiteral() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 94,
+      var key    = peg$currPos * 205 + 94,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10488,7 +10579,7 @@ module.exports = (function() {
       s1 = peg$parseimplicitObjectLiteralMemberList();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c180(s1);
+        s1 = peg$c181(s1);
       }
       s0 = s1;
 
@@ -10500,7 +10591,7 @@ module.exports = (function() {
     function peg$parseimplicitObjectLiteralMemberList() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 95,
+      var key    = peg$currPos * 205 + 95,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10568,7 +10659,7 @@ module.exports = (function() {
     function peg$parseimplicitObjectLiteralMemberSeparator() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 96,
+      var key    = peg$currPos * 205 + 96,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10653,7 +10744,7 @@ module.exports = (function() {
     function peg$parseimplicitObjectLiteralMember() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 97,
+      var key    = peg$currPos * 205 + 97,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10667,11 +10758,11 @@ module.exports = (function() {
         s2 = peg$parse_();
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 58) {
-            s3 = peg$c148;
+            s3 = peg$c149;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c149); }
+            if (peg$silentFails === 0) { peg$fail(peg$c150); }
           }
           if (s3 !== peg$FAILED) {
             s4 = peg$parse_();
@@ -10679,7 +10770,7 @@ module.exports = (function() {
               s5 = peg$parseimplicitObjectLiteralMemberValue();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c184(s1, s5);
+                s1 = peg$c185(s1, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -10710,7 +10801,7 @@ module.exports = (function() {
     function peg$parseimplicitObjectLiteralMemberValue() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 98,
+      var key    = peg$currPos * 205 + 98,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10755,7 +10846,7 @@ module.exports = (function() {
     function peg$parsesingleLineImplicitObjectLiteral() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 99,
+      var key    = peg$currPos * 205 + 99,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10767,7 +10858,7 @@ module.exports = (function() {
       s1 = peg$parsesingleLineImplicitObjectLiteralMemberList();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c180(s1);
+        s1 = peg$c181(s1);
       }
       s0 = s1;
 
@@ -10779,7 +10870,7 @@ module.exports = (function() {
     function peg$parsesingleLineImplicitObjectLiteralMemberList() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 100,
+      var key    = peg$currPos * 205 + 100,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10847,7 +10938,7 @@ module.exports = (function() {
     function peg$parsesingleLineImplicitObjectLiteralMemberSeparator() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 101,
+      var key    = peg$currPos * 205 + 101,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10891,7 +10982,7 @@ module.exports = (function() {
     function peg$parsemacro() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 102,
+      var key    = peg$currPos * 205 + 102,
           cached = peg$cache[key];
 
       if (cached) {
@@ -10900,88 +10991,103 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 8) === peg$c185) {
-        s1 = peg$c185;
+      if (input.substr(peg$currPos, 8) === peg$c186) {
+        s1 = peg$c186;
         peg$currPos += 8;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c186); }
+        if (peg$silentFails === 0) { peg$fail(peg$c187); }
       }
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c187();
+        s1 = peg$c188();
       }
       s0 = s1;
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
-        if (input.substr(peg$currPos, 12) === peg$c188) {
-          s1 = peg$c188;
+        if (input.substr(peg$currPos, 12) === peg$c189) {
+          s1 = peg$c189;
           peg$currPos += 12;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c189); }
+          if (peg$silentFails === 0) { peg$fail(peg$c190); }
         }
         if (s1 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c190();
+          s1 = peg$c191();
         }
         s0 = s1;
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
-          if (input.substr(peg$currPos, 8) === peg$c191) {
-            s1 = peg$c191;
+          if (input.substr(peg$currPos, 8) === peg$c192) {
+            s1 = peg$c192;
             peg$currPos += 8;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c192); }
+            if (peg$silentFails === 0) { peg$fail(peg$c193); }
           }
           if (s1 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c193();
+            s1 = peg$c194();
           }
           s0 = s1;
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
-            if (input.substr(peg$currPos, 8) === peg$c194) {
-              s1 = peg$c194;
+            if (input.substr(peg$currPos, 8) === peg$c195) {
+              s1 = peg$c195;
               peg$currPos += 8;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c195); }
+              if (peg$silentFails === 0) { peg$fail(peg$c196); }
             }
             if (s1 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c196();
+              s1 = peg$c197();
             }
             s0 = s1;
             if (s0 === peg$FAILED) {
               s0 = peg$currPos;
-              if (input.substr(peg$currPos, 14) === peg$c197) {
-                s1 = peg$c197;
+              if (input.substr(peg$currPos, 14) === peg$c198) {
+                s1 = peg$c198;
                 peg$currPos += 14;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c198); }
+                if (peg$silentFails === 0) { peg$fail(peg$c199); }
               }
               if (s1 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c199();
+                s1 = peg$c200();
               }
               s0 = s1;
               if (s0 === peg$FAILED) {
                 s0 = peg$currPos;
-                if (input.substr(peg$currPos, 18) === peg$c200) {
-                  s1 = peg$c200;
+                if (input.substr(peg$currPos, 18) === peg$c201) {
+                  s1 = peg$c201;
                   peg$currPos += 18;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c201); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c202); }
                 }
                 if (s1 !== peg$FAILED) {
                   peg$reportedPos = s0;
-                  s1 = peg$c202();
+                  s1 = peg$c203();
                 }
                 s0 = s1;
+                if (s0 === peg$FAILED) {
+                  s0 = peg$currPos;
+                  if (input.substr(peg$currPos, 14) === peg$c204) {
+                    s1 = peg$c204;
+                    peg$currPos += 14;
+                  } else {
+                    s1 = peg$FAILED;
+                    if (peg$silentFails === 0) { peg$fail(peg$c205); }
+                  }
+                  if (s1 !== peg$FAILED) {
+                    peg$reportedPos = s0;
+                    s1 = peg$c206();
+                  }
+                  s0 = s1;
+                }
               }
             }
           }
@@ -10996,7 +11102,7 @@ module.exports = (function() {
     function peg$parsebool() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 103,
+      var key    = peg$currPos * 205 + 103,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11014,7 +11120,7 @@ module.exports = (function() {
       }
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c203();
+        s1 = peg$c207();
       }
       s0 = s1;
       if (s0 === peg$FAILED) {
@@ -11028,7 +11134,7 @@ module.exports = (function() {
         }
         if (s1 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c204();
+          s1 = peg$c208();
         }
         s0 = s1;
       }
@@ -11041,7 +11147,7 @@ module.exports = (function() {
     function peg$parseNumbers() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 104,
+      var key    = peg$currPos * 205 + 104,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11050,12 +11156,12 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c205) {
-        s1 = peg$c205;
+      if (input.substr(peg$currPos, 2) === peg$c209) {
+        s1 = peg$c209;
         peg$currPos += 2;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c206); }
+        if (peg$silentFails === 0) { peg$fail(peg$c210); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$currPos;
@@ -11075,7 +11181,7 @@ module.exports = (function() {
         s2 = s3;
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c207(s2);
+          s1 = peg$c211(s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -11087,12 +11193,12 @@ module.exports = (function() {
       }
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
-        if (input.substr(peg$currPos, 2) === peg$c208) {
-          s1 = peg$c208;
+        if (input.substr(peg$currPos, 2) === peg$c212) {
+          s1 = peg$c212;
           peg$currPos += 2;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c209); }
+          if (peg$silentFails === 0) { peg$fail(peg$c213); }
         }
         if (s1 !== peg$FAILED) {
           s2 = peg$currPos;
@@ -11112,7 +11218,7 @@ module.exports = (function() {
           s2 = s3;
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c210(s2);
+            s1 = peg$c214(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -11124,12 +11230,12 @@ module.exports = (function() {
         }
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
-          if (input.substr(peg$currPos, 2) === peg$c211) {
-            s1 = peg$c211;
+          if (input.substr(peg$currPos, 2) === peg$c215) {
+            s1 = peg$c215;
             peg$currPos += 2;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c212); }
+            if (peg$silentFails === 0) { peg$fail(peg$c216); }
           }
           if (s1 !== peg$FAILED) {
             s2 = peg$currPos;
@@ -11149,7 +11255,7 @@ module.exports = (function() {
             s2 = s3;
             if (s2 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c213(s2);
+              s1 = peg$c217(s2);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -11163,20 +11269,20 @@ module.exports = (function() {
             s0 = peg$currPos;
             s1 = peg$parsedecimal();
             if (s1 !== peg$FAILED) {
-              if (peg$c214.test(input.charAt(peg$currPos))) {
+              if (peg$c218.test(input.charAt(peg$currPos))) {
                 s2 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s2 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c215); }
+                if (peg$silentFails === 0) { peg$fail(peg$c219); }
               }
               if (s2 !== peg$FAILED) {
-                if (peg$c216.test(input.charAt(peg$currPos))) {
+                if (peg$c220.test(input.charAt(peg$currPos))) {
                   s3 = input.charAt(peg$currPos);
                   peg$currPos++;
                 } else {
                   s3 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c217); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c221); }
                 }
                 if (s3 === peg$FAILED) {
                   s3 = peg$c1;
@@ -11185,7 +11291,7 @@ module.exports = (function() {
                   s4 = peg$parsedecimal();
                   if (s4 !== peg$FAILED) {
                     peg$reportedPos = s0;
-                    s1 = peg$c218(s1, s2, s3, s4);
+                    s1 = peg$c222(s1, s2, s3, s4);
                     s0 = s1;
                   } else {
                     peg$currPos = s0;
@@ -11218,7 +11324,7 @@ module.exports = (function() {
     function peg$parsedecimal() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 105,
+      var key    = peg$currPos * 205 + 105,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11232,11 +11338,11 @@ module.exports = (function() {
         s2 = peg$currPos;
         s3 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 46) {
-          s4 = peg$c94;
+          s4 = peg$c95;
           peg$currPos++;
         } else {
           s4 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c95); }
+          if (peg$silentFails === 0) { peg$fail(peg$c96); }
         }
         if (s4 !== peg$FAILED) {
           s5 = [];
@@ -11269,7 +11375,7 @@ module.exports = (function() {
         s2 = s3;
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c219(s1, s2);
+          s1 = peg$c223(s1, s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -11288,7 +11394,7 @@ module.exports = (function() {
     function peg$parseinteger() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 106,
+      var key    = peg$currPos * 205 + 106,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11297,21 +11403,21 @@ module.exports = (function() {
       }
 
       if (input.charCodeAt(peg$currPos) === 48) {
-        s0 = peg$c220;
+        s0 = peg$c224;
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c221); }
+        if (peg$silentFails === 0) { peg$fail(peg$c225); }
       }
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         s1 = peg$currPos;
-        if (peg$c222.test(input.charAt(peg$currPos))) {
+        if (peg$c226.test(input.charAt(peg$currPos))) {
           s2 = input.charAt(peg$currPos);
           peg$currPos++;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c223); }
+          if (peg$silentFails === 0) { peg$fail(peg$c227); }
         }
         if (s2 !== peg$FAILED) {
           s3 = [];
@@ -11345,7 +11451,7 @@ module.exports = (function() {
     function peg$parsedecimalDigit() {
       var s0;
 
-      var key    = peg$currPos * 204 + 107,
+      var key    = peg$currPos * 205 + 107,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11353,12 +11459,12 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c224.test(input.charAt(peg$currPos))) {
+      if (peg$c228.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c225); }
+        if (peg$silentFails === 0) { peg$fail(peg$c229); }
       }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
@@ -11369,7 +11475,7 @@ module.exports = (function() {
     function peg$parsehexDigit() {
       var s0;
 
-      var key    = peg$currPos * 204 + 108,
+      var key    = peg$currPos * 205 + 108,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11377,12 +11483,12 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c226.test(input.charAt(peg$currPos))) {
+      if (peg$c230.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c227); }
+        if (peg$silentFails === 0) { peg$fail(peg$c231); }
       }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
@@ -11393,7 +11499,7 @@ module.exports = (function() {
     function peg$parseoctalDigit() {
       var s0;
 
-      var key    = peg$currPos * 204 + 109,
+      var key    = peg$currPos * 205 + 109,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11401,12 +11507,12 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c228.test(input.charAt(peg$currPos))) {
+      if (peg$c232.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c229); }
+        if (peg$silentFails === 0) { peg$fail(peg$c233); }
       }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
@@ -11417,7 +11523,7 @@ module.exports = (function() {
     function peg$parsebit() {
       var s0;
 
-      var key    = peg$currPos * 204 + 110,
+      var key    = peg$currPos * 205 + 110,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11425,12 +11531,12 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c230.test(input.charAt(peg$currPos))) {
+      if (peg$c234.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c231); }
+        if (peg$silentFails === 0) { peg$fail(peg$c235); }
       }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
@@ -11441,7 +11547,7 @@ module.exports = (function() {
     function peg$parsestring() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8;
 
-      var key    = peg$currPos * 204 + 111,
+      var key    = peg$currPos * 205 + 111,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11450,41 +11556,41 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c232) {
-        s1 = peg$c232;
+      if (input.substr(peg$currPos, 3) === peg$c236) {
+        s1 = peg$c236;
         peg$currPos += 3;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c233); }
+        if (peg$silentFails === 0) { peg$fail(peg$c237); }
       }
       if (s1 !== peg$FAILED) {
         s2 = [];
         s3 = peg$parsestringData();
         if (s3 === peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 39) {
-            s3 = peg$c234;
+            s3 = peg$c238;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c235); }
+            if (peg$silentFails === 0) { peg$fail(peg$c239); }
           }
           if (s3 === peg$FAILED) {
             s3 = peg$currPos;
             s4 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 34) {
-              s5 = peg$c236;
+              s5 = peg$c240;
               peg$currPos++;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c237); }
+              if (peg$silentFails === 0) { peg$fail(peg$c241); }
             }
             if (s5 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 34) {
-                s6 = peg$c236;
+                s6 = peg$c240;
                 peg$currPos++;
               } else {
                 s6 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                if (peg$silentFails === 0) { peg$fail(peg$c241); }
               }
               if (s6 === peg$FAILED) {
                 s6 = peg$c1;
@@ -11493,11 +11599,11 @@ module.exports = (function() {
                 s7 = peg$currPos;
                 peg$silentFails++;
                 if (input.charCodeAt(peg$currPos) === 34) {
-                  s8 = peg$c236;
+                  s8 = peg$c240;
                   peg$currPos++;
                 } else {
                   s8 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c241); }
                 }
                 peg$silentFails--;
                 if (s8 === peg$FAILED) {
@@ -11533,29 +11639,29 @@ module.exports = (function() {
             s3 = peg$parsestringData();
             if (s3 === peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 39) {
-                s3 = peg$c234;
+                s3 = peg$c238;
                 peg$currPos++;
               } else {
                 s3 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                if (peg$silentFails === 0) { peg$fail(peg$c239); }
               }
               if (s3 === peg$FAILED) {
                 s3 = peg$currPos;
                 s4 = peg$currPos;
                 if (input.charCodeAt(peg$currPos) === 34) {
-                  s5 = peg$c236;
+                  s5 = peg$c240;
                   peg$currPos++;
                 } else {
                   s5 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c241); }
                 }
                 if (s5 !== peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 34) {
-                    s6 = peg$c236;
+                    s6 = peg$c240;
                     peg$currPos++;
                   } else {
                     s6 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c241); }
                   }
                   if (s6 === peg$FAILED) {
                     s6 = peg$c1;
@@ -11564,11 +11670,11 @@ module.exports = (function() {
                     s7 = peg$currPos;
                     peg$silentFails++;
                     if (input.charCodeAt(peg$currPos) === 34) {
-                      s8 = peg$c236;
+                      s8 = peg$c240;
                       peg$currPos++;
                     } else {
                       s8 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c241); }
                     }
                     peg$silentFails--;
                     if (s8 === peg$FAILED) {
@@ -11603,16 +11709,16 @@ module.exports = (function() {
           s2 = peg$c0;
         }
         if (s2 !== peg$FAILED) {
-          if (input.substr(peg$currPos, 3) === peg$c232) {
-            s3 = peg$c232;
+          if (input.substr(peg$currPos, 3) === peg$c236) {
+            s3 = peg$c236;
             peg$currPos += 3;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c233); }
+            if (peg$silentFails === 0) { peg$fail(peg$c237); }
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c238(s2);
+            s1 = peg$c242(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -11628,49 +11734,49 @@ module.exports = (function() {
       }
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
-        if (input.substr(peg$currPos, 3) === peg$c239) {
-          s1 = peg$c239;
+        if (input.substr(peg$currPos, 3) === peg$c243) {
+          s1 = peg$c243;
           peg$currPos += 3;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c240); }
+          if (peg$silentFails === 0) { peg$fail(peg$c244); }
         }
         if (s1 !== peg$FAILED) {
           s2 = [];
           s3 = peg$parsestringData();
           if (s3 === peg$FAILED) {
             if (input.charCodeAt(peg$currPos) === 34) {
-              s3 = peg$c236;
+              s3 = peg$c240;
               peg$currPos++;
             } else {
               s3 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c237); }
+              if (peg$silentFails === 0) { peg$fail(peg$c241); }
             }
             if (s3 === peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 35) {
-                s3 = peg$c241;
+                s3 = peg$c245;
                 peg$currPos++;
               } else {
                 s3 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                if (peg$silentFails === 0) { peg$fail(peg$c246); }
               }
               if (s3 === peg$FAILED) {
                 s3 = peg$currPos;
                 s4 = peg$currPos;
                 if (input.charCodeAt(peg$currPos) === 39) {
-                  s5 = peg$c234;
+                  s5 = peg$c238;
                   peg$currPos++;
                 } else {
                   s5 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c239); }
                 }
                 if (s5 !== peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 39) {
-                    s6 = peg$c234;
+                    s6 = peg$c238;
                     peg$currPos++;
                   } else {
                     s6 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c239); }
                   }
                   if (s6 === peg$FAILED) {
                     s6 = peg$c1;
@@ -11679,11 +11785,11 @@ module.exports = (function() {
                     s7 = peg$currPos;
                     peg$silentFails++;
                     if (input.charCodeAt(peg$currPos) === 39) {
-                      s8 = peg$c234;
+                      s8 = peg$c238;
                       peg$currPos++;
                     } else {
                       s8 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c239); }
                     }
                     peg$silentFails--;
                     if (s8 === peg$FAILED) {
@@ -11720,37 +11826,37 @@ module.exports = (function() {
               s3 = peg$parsestringData();
               if (s3 === peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 34) {
-                  s3 = peg$c236;
+                  s3 = peg$c240;
                   peg$currPos++;
                 } else {
                   s3 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c241); }
                 }
                 if (s3 === peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 35) {
-                    s3 = peg$c241;
+                    s3 = peg$c245;
                     peg$currPos++;
                   } else {
                     s3 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c246); }
                   }
                   if (s3 === peg$FAILED) {
                     s3 = peg$currPos;
                     s4 = peg$currPos;
                     if (input.charCodeAt(peg$currPos) === 39) {
-                      s5 = peg$c234;
+                      s5 = peg$c238;
                       peg$currPos++;
                     } else {
                       s5 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c239); }
                     }
                     if (s5 !== peg$FAILED) {
                       if (input.charCodeAt(peg$currPos) === 39) {
-                        s6 = peg$c234;
+                        s6 = peg$c238;
                         peg$currPos++;
                       } else {
                         s6 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c239); }
                       }
                       if (s6 === peg$FAILED) {
                         s6 = peg$c1;
@@ -11759,11 +11865,11 @@ module.exports = (function() {
                         s7 = peg$currPos;
                         peg$silentFails++;
                         if (input.charCodeAt(peg$currPos) === 39) {
-                          s8 = peg$c234;
+                          s8 = peg$c238;
                           peg$currPos++;
                         } else {
                           s8 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c239); }
                         }
                         peg$silentFails--;
                         if (s8 === peg$FAILED) {
@@ -11799,16 +11905,16 @@ module.exports = (function() {
             s2 = peg$c0;
           }
           if (s2 !== peg$FAILED) {
-            if (input.substr(peg$currPos, 3) === peg$c239) {
-              s3 = peg$c239;
+            if (input.substr(peg$currPos, 3) === peg$c243) {
+              s3 = peg$c243;
               peg$currPos += 3;
             } else {
               s3 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c240); }
+              if (peg$silentFails === 0) { peg$fail(peg$c244); }
             }
             if (s3 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c238(s2);
+              s1 = peg$c242(s2);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -11825,22 +11931,22 @@ module.exports = (function() {
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
           if (input.charCodeAt(peg$currPos) === 34) {
-            s1 = peg$c236;
+            s1 = peg$c240;
             peg$currPos++;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c237); }
+            if (peg$silentFails === 0) { peg$fail(peg$c241); }
           }
           if (s1 !== peg$FAILED) {
             s2 = [];
             s3 = peg$parsestringData();
             if (s3 === peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 39) {
-                s3 = peg$c234;
+                s3 = peg$c238;
                 peg$currPos++;
               } else {
                 s3 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                if (peg$silentFails === 0) { peg$fail(peg$c239); }
               }
             }
             while (s3 !== peg$FAILED) {
@@ -11848,25 +11954,25 @@ module.exports = (function() {
               s3 = peg$parsestringData();
               if (s3 === peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 39) {
-                  s3 = peg$c234;
+                  s3 = peg$c238;
                   peg$currPos++;
                 } else {
                   s3 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c239); }
                 }
               }
             }
             if (s2 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 34) {
-                s3 = peg$c236;
+                s3 = peg$c240;
                 peg$currPos++;
               } else {
                 s3 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                if (peg$silentFails === 0) { peg$fail(peg$c241); }
               }
               if (s3 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c243(s2);
+                s1 = peg$c247(s2);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -11883,30 +11989,30 @@ module.exports = (function() {
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 39) {
-              s1 = peg$c234;
+              s1 = peg$c238;
               peg$currPos++;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c235); }
+              if (peg$silentFails === 0) { peg$fail(peg$c239); }
             }
             if (s1 !== peg$FAILED) {
               s2 = [];
               s3 = peg$parsestringData();
               if (s3 === peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 34) {
-                  s3 = peg$c236;
+                  s3 = peg$c240;
                   peg$currPos++;
                 } else {
                   s3 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c241); }
                 }
                 if (s3 === peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 35) {
-                    s3 = peg$c241;
+                    s3 = peg$c245;
                     peg$currPos++;
                   } else {
                     s3 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c246); }
                   }
                 }
               }
@@ -11915,34 +12021,34 @@ module.exports = (function() {
                 s3 = peg$parsestringData();
                 if (s3 === peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 34) {
-                    s3 = peg$c236;
+                    s3 = peg$c240;
                     peg$currPos++;
                   } else {
                     s3 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c241); }
                   }
                   if (s3 === peg$FAILED) {
                     if (input.charCodeAt(peg$currPos) === 35) {
-                      s3 = peg$c241;
+                      s3 = peg$c245;
                       peg$currPos++;
                     } else {
                       s3 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c246); }
                     }
                   }
                 }
               }
               if (s2 !== peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 39) {
-                  s3 = peg$c234;
+                  s3 = peg$c238;
                   peg$currPos++;
                 } else {
                   s3 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c239); }
                 }
                 if (s3 !== peg$FAILED) {
                   peg$reportedPos = s0;
-                  s1 = peg$c243(s2);
+                  s1 = peg$c247(s2);
                   s0 = s1;
                 } else {
                   peg$currPos = s0;
@@ -11968,7 +12074,7 @@ module.exports = (function() {
     function peg$parsestringData() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 112,
+      var key    = peg$currPos * 205 + 112,
           cached = peg$cache[key];
 
       if (cached) {
@@ -11976,23 +12082,23 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c244.test(input.charAt(peg$currPos))) {
+      if (peg$c248.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c245); }
+        if (peg$silentFails === 0) { peg$fail(peg$c249); }
       }
       if (s0 === peg$FAILED) {
         s0 = peg$parseUnicodeEscapeSequence();
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
-          if (input.substr(peg$currPos, 2) === peg$c246) {
-            s1 = peg$c246;
+          if (input.substr(peg$currPos, 2) === peg$c250) {
+            s1 = peg$c250;
             peg$currPos += 2;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c247); }
+            if (peg$silentFails === 0) { peg$fail(peg$c251); }
           }
           if (s1 !== peg$FAILED) {
             s2 = peg$currPos;
@@ -12017,7 +12123,7 @@ module.exports = (function() {
             s2 = s3;
             if (s2 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c248(s2);
+              s1 = peg$c252(s2);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -12029,12 +12135,12 @@ module.exports = (function() {
           }
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
-            if (input.substr(peg$currPos, 2) === peg$c249) {
-              s1 = peg$c249;
+            if (input.substr(peg$currPos, 2) === peg$c253) {
+              s1 = peg$c253;
               peg$currPos += 2;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c250); }
+              if (peg$silentFails === 0) { peg$fail(peg$c254); }
             }
             if (s1 !== peg$FAILED) {
               s2 = peg$currPos;
@@ -12049,7 +12155,7 @@ module.exports = (function() {
               }
               if (s2 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c251();
+                s1 = peg$c255();
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -12061,12 +12167,12 @@ module.exports = (function() {
             }
             if (s0 === peg$FAILED) {
               s0 = peg$currPos;
-              if (input.substr(peg$currPos, 2) === peg$c249) {
-                s1 = peg$c249;
+              if (input.substr(peg$currPos, 2) === peg$c253) {
+                s1 = peg$c253;
                 peg$currPos += 2;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c250); }
+                if (peg$silentFails === 0) { peg$fail(peg$c254); }
               }
               if (s1 !== peg$FAILED) {
                 s2 = peg$currPos;
@@ -12081,7 +12187,7 @@ module.exports = (function() {
                 }
                 if (s2 !== peg$FAILED) {
                   peg$reportedPos = s0;
-                  s1 = peg$c252();
+                  s1 = peg$c256();
                   s0 = s1;
                 } else {
                   peg$currPos = s0;
@@ -12093,96 +12199,96 @@ module.exports = (function() {
               }
               if (s0 === peg$FAILED) {
                 s0 = peg$currPos;
-                if (input.substr(peg$currPos, 2) === peg$c253) {
-                  s1 = peg$c253;
+                if (input.substr(peg$currPos, 2) === peg$c257) {
+                  s1 = peg$c257;
                   peg$currPos += 2;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c254); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c258); }
                 }
                 if (s1 !== peg$FAILED) {
                   peg$reportedPos = s0;
-                  s1 = peg$c255();
+                  s1 = peg$c259();
                 }
                 s0 = s1;
                 if (s0 === peg$FAILED) {
                   s0 = peg$currPos;
-                  if (input.substr(peg$currPos, 2) === peg$c256) {
-                    s1 = peg$c256;
+                  if (input.substr(peg$currPos, 2) === peg$c260) {
+                    s1 = peg$c260;
                     peg$currPos += 2;
                   } else {
                     s1 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c257); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c261); }
                   }
                   if (s1 !== peg$FAILED) {
                     peg$reportedPos = s0;
-                    s1 = peg$c258();
+                    s1 = peg$c262();
                   }
                   s0 = s1;
                   if (s0 === peg$FAILED) {
                     s0 = peg$currPos;
-                    if (input.substr(peg$currPos, 2) === peg$c259) {
-                      s1 = peg$c259;
+                    if (input.substr(peg$currPos, 2) === peg$c263) {
+                      s1 = peg$c263;
                       peg$currPos += 2;
                     } else {
                       s1 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c260); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c264); }
                     }
                     if (s1 !== peg$FAILED) {
                       peg$reportedPos = s0;
-                      s1 = peg$c261();
+                      s1 = peg$c265();
                     }
                     s0 = s1;
                     if (s0 === peg$FAILED) {
                       s0 = peg$currPos;
-                      if (input.substr(peg$currPos, 2) === peg$c262) {
-                        s1 = peg$c262;
+                      if (input.substr(peg$currPos, 2) === peg$c266) {
+                        s1 = peg$c266;
                         peg$currPos += 2;
                       } else {
                         s1 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c263); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c267); }
                       }
                       if (s1 !== peg$FAILED) {
                         peg$reportedPos = s0;
-                        s1 = peg$c264();
+                        s1 = peg$c268();
                       }
                       s0 = s1;
                       if (s0 === peg$FAILED) {
                         s0 = peg$currPos;
-                        if (input.substr(peg$currPos, 2) === peg$c265) {
-                          s1 = peg$c265;
+                        if (input.substr(peg$currPos, 2) === peg$c269) {
+                          s1 = peg$c269;
                           peg$currPos += 2;
                         } else {
                           s1 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c266); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c270); }
                         }
                         if (s1 !== peg$FAILED) {
                           peg$reportedPos = s0;
-                          s1 = peg$c267();
+                          s1 = peg$c271();
                         }
                         s0 = s1;
                         if (s0 === peg$FAILED) {
                           s0 = peg$currPos;
-                          if (input.substr(peg$currPos, 2) === peg$c268) {
-                            s1 = peg$c268;
+                          if (input.substr(peg$currPos, 2) === peg$c272) {
+                            s1 = peg$c272;
                             peg$currPos += 2;
                           } else {
                             s1 = peg$FAILED;
-                            if (peg$silentFails === 0) { peg$fail(peg$c269); }
+                            if (peg$silentFails === 0) { peg$fail(peg$c273); }
                           }
                           if (s1 !== peg$FAILED) {
                             peg$reportedPos = s0;
-                            s1 = peg$c270();
+                            s1 = peg$c274();
                           }
                           s0 = s1;
                           if (s0 === peg$FAILED) {
                             s0 = peg$currPos;
                             if (input.charCodeAt(peg$currPos) === 92) {
-                              s1 = peg$c271;
+                              s1 = peg$c275;
                               peg$currPos++;
                             } else {
                               s1 = peg$FAILED;
-                              if (peg$silentFails === 0) { peg$fail(peg$c272); }
+                              if (peg$silentFails === 0) { peg$fail(peg$c276); }
                             }
                             if (s1 !== peg$FAILED) {
                               if (input.length > peg$currPos) {
@@ -12190,11 +12296,11 @@ module.exports = (function() {
                                 peg$currPos++;
                               } else {
                                 s2 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c273); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c277); }
                               }
                               if (s2 !== peg$FAILED) {
                                 peg$reportedPos = s0;
-                                s1 = peg$c160(s2);
+                                s1 = peg$c161(s2);
                                 s0 = s1;
                               } else {
                                 peg$currPos = s0;
@@ -12207,21 +12313,21 @@ module.exports = (function() {
                             if (s0 === peg$FAILED) {
                               s0 = peg$currPos;
                               if (input.charCodeAt(peg$currPos) === 35) {
-                                s1 = peg$c241;
+                                s1 = peg$c245;
                                 peg$currPos++;
                               } else {
                                 s1 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c246); }
                               }
                               if (s1 !== peg$FAILED) {
                                 s2 = peg$currPos;
                                 peg$silentFails++;
                                 if (input.charCodeAt(peg$currPos) === 123) {
-                                  s3 = peg$c176;
+                                  s3 = peg$c177;
                                   peg$currPos++;
                                 } else {
                                   s3 = peg$FAILED;
-                                  if (peg$silentFails === 0) { peg$fail(peg$c177); }
+                                  if (peg$silentFails === 0) { peg$fail(peg$c178); }
                                 }
                                 peg$silentFails--;
                                 if (s3 === peg$FAILED) {
@@ -12232,7 +12338,7 @@ module.exports = (function() {
                                 }
                                 if (s2 !== peg$FAILED) {
                                   peg$reportedPos = s0;
-                                  s1 = peg$c160(s1);
+                                  s1 = peg$c161(s1);
                                   s0 = s1;
                                 } else {
                                   peg$currPos = s0;
@@ -12263,7 +12369,7 @@ module.exports = (function() {
     function peg$parseinterpolation() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;
 
-      var key    = peg$currPos * 204 + 113,
+      var key    = peg$currPos * 205 + 113,
           cached = peg$cache[key];
 
       if (cached) {
@@ -12272,12 +12378,12 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c232) {
-        s1 = peg$c232;
+      if (input.substr(peg$currPos, 3) === peg$c236) {
+        s1 = peg$c236;
         peg$currPos += 3;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c233); }
+        if (peg$silentFails === 0) { peg$fail(peg$c237); }
       }
       if (s1 !== peg$FAILED) {
         s2 = [];
@@ -12286,29 +12392,29 @@ module.exports = (function() {
         s5 = peg$parsestringData();
         if (s5 === peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 39) {
-            s5 = peg$c234;
+            s5 = peg$c238;
             peg$currPos++;
           } else {
             s5 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c235); }
+            if (peg$silentFails === 0) { peg$fail(peg$c239); }
           }
           if (s5 === peg$FAILED) {
             s5 = peg$currPos;
             s6 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 34) {
-              s7 = peg$c236;
+              s7 = peg$c240;
               peg$currPos++;
             } else {
               s7 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c237); }
+              if (peg$silentFails === 0) { peg$fail(peg$c241); }
             }
             if (s7 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 34) {
-                s8 = peg$c236;
+                s8 = peg$c240;
                 peg$currPos++;
               } else {
                 s8 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                if (peg$silentFails === 0) { peg$fail(peg$c241); }
               }
               if (s8 === peg$FAILED) {
                 s8 = peg$c1;
@@ -12317,11 +12423,11 @@ module.exports = (function() {
                 s9 = peg$currPos;
                 peg$silentFails++;
                 if (input.charCodeAt(peg$currPos) === 34) {
-                  s10 = peg$c236;
+                  s10 = peg$c240;
                   peg$currPos++;
                 } else {
                   s10 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c241); }
                 }
                 peg$silentFails--;
                 if (s10 === peg$FAILED) {
@@ -12357,29 +12463,29 @@ module.exports = (function() {
             s5 = peg$parsestringData();
             if (s5 === peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 39) {
-                s5 = peg$c234;
+                s5 = peg$c238;
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                if (peg$silentFails === 0) { peg$fail(peg$c239); }
               }
               if (s5 === peg$FAILED) {
                 s5 = peg$currPos;
                 s6 = peg$currPos;
                 if (input.charCodeAt(peg$currPos) === 34) {
-                  s7 = peg$c236;
+                  s7 = peg$c240;
                   peg$currPos++;
                 } else {
                   s7 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c241); }
                 }
                 if (s7 !== peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 34) {
-                    s8 = peg$c236;
+                    s8 = peg$c240;
                     peg$currPos++;
                   } else {
                     s8 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c241); }
                   }
                   if (s8 === peg$FAILED) {
                     s8 = peg$c1;
@@ -12388,11 +12494,11 @@ module.exports = (function() {
                     s9 = peg$currPos;
                     peg$silentFails++;
                     if (input.charCodeAt(peg$currPos) === 34) {
-                      s10 = peg$c236;
+                      s10 = peg$c240;
                       peg$currPos++;
                     } else {
                       s10 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c241); }
                     }
                     peg$silentFails--;
                     if (s10 === peg$FAILED) {
@@ -12428,17 +12534,17 @@ module.exports = (function() {
         }
         if (s4 !== peg$FAILED) {
           peg$reportedPos = s3;
-          s4 = peg$c243(s4);
+          s4 = peg$c247(s4);
         }
         s3 = s4;
         if (s3 === peg$FAILED) {
           s3 = peg$currPos;
-          if (input.substr(peg$currPos, 2) === peg$c274) {
-            s4 = peg$c274;
+          if (input.substr(peg$currPos, 2) === peg$c278) {
+            s4 = peg$c278;
             peg$currPos += 2;
           } else {
             s4 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c275); }
+            if (peg$silentFails === 0) { peg$fail(peg$c279); }
           }
           if (s4 !== peg$FAILED) {
             s5 = peg$parse_();
@@ -12448,11 +12554,11 @@ module.exports = (function() {
                 s7 = peg$parse_();
                 if (s7 !== peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 125) {
-                    s8 = peg$c178;
+                    s8 = peg$c179;
                     peg$currPos++;
                   } else {
                     s8 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c179); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c180); }
                   }
                   if (s8 !== peg$FAILED) {
                     peg$reportedPos = s3;
@@ -12487,29 +12593,29 @@ module.exports = (function() {
             s5 = peg$parsestringData();
             if (s5 === peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 39) {
-                s5 = peg$c234;
+                s5 = peg$c238;
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                if (peg$silentFails === 0) { peg$fail(peg$c239); }
               }
               if (s5 === peg$FAILED) {
                 s5 = peg$currPos;
                 s6 = peg$currPos;
                 if (input.charCodeAt(peg$currPos) === 34) {
-                  s7 = peg$c236;
+                  s7 = peg$c240;
                   peg$currPos++;
                 } else {
                   s7 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c241); }
                 }
                 if (s7 !== peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 34) {
-                    s8 = peg$c236;
+                    s8 = peg$c240;
                     peg$currPos++;
                   } else {
                     s8 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c241); }
                   }
                   if (s8 === peg$FAILED) {
                     s8 = peg$c1;
@@ -12518,11 +12624,11 @@ module.exports = (function() {
                     s9 = peg$currPos;
                     peg$silentFails++;
                     if (input.charCodeAt(peg$currPos) === 34) {
-                      s10 = peg$c236;
+                      s10 = peg$c240;
                       peg$currPos++;
                     } else {
                       s10 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c241); }
                     }
                     peg$silentFails--;
                     if (s10 === peg$FAILED) {
@@ -12558,29 +12664,29 @@ module.exports = (function() {
                 s5 = peg$parsestringData();
                 if (s5 === peg$FAILED) {
                   if (input.charCodeAt(peg$currPos) === 39) {
-                    s5 = peg$c234;
+                    s5 = peg$c238;
                     peg$currPos++;
                   } else {
                     s5 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c239); }
                   }
                   if (s5 === peg$FAILED) {
                     s5 = peg$currPos;
                     s6 = peg$currPos;
                     if (input.charCodeAt(peg$currPos) === 34) {
-                      s7 = peg$c236;
+                      s7 = peg$c240;
                       peg$currPos++;
                     } else {
                       s7 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c241); }
                     }
                     if (s7 !== peg$FAILED) {
                       if (input.charCodeAt(peg$currPos) === 34) {
-                        s8 = peg$c236;
+                        s8 = peg$c240;
                         peg$currPos++;
                       } else {
                         s8 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c241); }
                       }
                       if (s8 === peg$FAILED) {
                         s8 = peg$c1;
@@ -12589,11 +12695,11 @@ module.exports = (function() {
                         s9 = peg$currPos;
                         peg$silentFails++;
                         if (input.charCodeAt(peg$currPos) === 34) {
-                          s10 = peg$c236;
+                          s10 = peg$c240;
                           peg$currPos++;
                         } else {
                           s10 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c237); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c241); }
                         }
                         peg$silentFails--;
                         if (s10 === peg$FAILED) {
@@ -12629,17 +12735,17 @@ module.exports = (function() {
             }
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s3;
-              s4 = peg$c243(s4);
+              s4 = peg$c247(s4);
             }
             s3 = s4;
             if (s3 === peg$FAILED) {
               s3 = peg$currPos;
-              if (input.substr(peg$currPos, 2) === peg$c274) {
-                s4 = peg$c274;
+              if (input.substr(peg$currPos, 2) === peg$c278) {
+                s4 = peg$c278;
                 peg$currPos += 2;
               } else {
                 s4 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c275); }
+                if (peg$silentFails === 0) { peg$fail(peg$c279); }
               }
               if (s4 !== peg$FAILED) {
                 s5 = peg$parse_();
@@ -12649,11 +12755,11 @@ module.exports = (function() {
                     s7 = peg$parse_();
                     if (s7 !== peg$FAILED) {
                       if (input.charCodeAt(peg$currPos) === 125) {
-                        s8 = peg$c178;
+                        s8 = peg$c179;
                         peg$currPos++;
                       } else {
                         s8 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c179); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c180); }
                       }
                       if (s8 !== peg$FAILED) {
                         peg$reportedPos = s3;
@@ -12685,16 +12791,16 @@ module.exports = (function() {
           s2 = peg$c0;
         }
         if (s2 !== peg$FAILED) {
-          if (input.substr(peg$currPos, 3) === peg$c232) {
-            s3 = peg$c232;
+          if (input.substr(peg$currPos, 3) === peg$c236) {
+            s3 = peg$c236;
             peg$currPos += 3;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c233); }
+            if (peg$silentFails === 0) { peg$fail(peg$c237); }
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c276(s2);
+            s1 = peg$c280(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -12711,11 +12817,11 @@ module.exports = (function() {
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 34) {
-          s1 = peg$c236;
+          s1 = peg$c240;
           peg$currPos++;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c237); }
+          if (peg$silentFails === 0) { peg$fail(peg$c241); }
         }
         if (s1 !== peg$FAILED) {
           s2 = [];
@@ -12724,11 +12830,11 @@ module.exports = (function() {
           s5 = peg$parsestringData();
           if (s5 === peg$FAILED) {
             if (input.charCodeAt(peg$currPos) === 39) {
-              s5 = peg$c234;
+              s5 = peg$c238;
               peg$currPos++;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c235); }
+              if (peg$silentFails === 0) { peg$fail(peg$c239); }
             }
           }
           if (s5 !== peg$FAILED) {
@@ -12737,11 +12843,11 @@ module.exports = (function() {
               s5 = peg$parsestringData();
               if (s5 === peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 39) {
-                  s5 = peg$c234;
+                  s5 = peg$c238;
                   peg$currPos++;
                 } else {
                   s5 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c239); }
                 }
               }
             }
@@ -12750,17 +12856,17 @@ module.exports = (function() {
           }
           if (s4 !== peg$FAILED) {
             peg$reportedPos = s3;
-            s4 = peg$c243(s4);
+            s4 = peg$c247(s4);
           }
           s3 = s4;
           if (s3 === peg$FAILED) {
             s3 = peg$currPos;
-            if (input.substr(peg$currPos, 2) === peg$c274) {
-              s4 = peg$c274;
+            if (input.substr(peg$currPos, 2) === peg$c278) {
+              s4 = peg$c278;
               peg$currPos += 2;
             } else {
               s4 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c275); }
+              if (peg$silentFails === 0) { peg$fail(peg$c279); }
             }
             if (s4 !== peg$FAILED) {
               s5 = peg$parse_();
@@ -12770,11 +12876,11 @@ module.exports = (function() {
                   s7 = peg$parse_();
                   if (s7 !== peg$FAILED) {
                     if (input.charCodeAt(peg$currPos) === 125) {
-                      s8 = peg$c178;
+                      s8 = peg$c179;
                       peg$currPos++;
                     } else {
                       s8 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c179); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c180); }
                     }
                     if (s8 !== peg$FAILED) {
                       peg$reportedPos = s3;
@@ -12809,11 +12915,11 @@ module.exports = (function() {
               s5 = peg$parsestringData();
               if (s5 === peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 39) {
-                  s5 = peg$c234;
+                  s5 = peg$c238;
                   peg$currPos++;
                 } else {
                   s5 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c239); }
                 }
               }
               if (s5 !== peg$FAILED) {
@@ -12822,11 +12928,11 @@ module.exports = (function() {
                   s5 = peg$parsestringData();
                   if (s5 === peg$FAILED) {
                     if (input.charCodeAt(peg$currPos) === 39) {
-                      s5 = peg$c234;
+                      s5 = peg$c238;
                       peg$currPos++;
                     } else {
                       s5 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c235); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c239); }
                     }
                   }
                 }
@@ -12835,17 +12941,17 @@ module.exports = (function() {
               }
               if (s4 !== peg$FAILED) {
                 peg$reportedPos = s3;
-                s4 = peg$c243(s4);
+                s4 = peg$c247(s4);
               }
               s3 = s4;
               if (s3 === peg$FAILED) {
                 s3 = peg$currPos;
-                if (input.substr(peg$currPos, 2) === peg$c274) {
-                  s4 = peg$c274;
+                if (input.substr(peg$currPos, 2) === peg$c278) {
+                  s4 = peg$c278;
                   peg$currPos += 2;
                 } else {
                   s4 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c275); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c279); }
                 }
                 if (s4 !== peg$FAILED) {
                   s5 = peg$parse_();
@@ -12855,11 +12961,11 @@ module.exports = (function() {
                       s7 = peg$parse_();
                       if (s7 !== peg$FAILED) {
                         if (input.charCodeAt(peg$currPos) === 125) {
-                          s8 = peg$c178;
+                          s8 = peg$c179;
                           peg$currPos++;
                         } else {
                           s8 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c179); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c180); }
                         }
                         if (s8 !== peg$FAILED) {
                           peg$reportedPos = s3;
@@ -12892,15 +12998,15 @@ module.exports = (function() {
           }
           if (s2 !== peg$FAILED) {
             if (input.charCodeAt(peg$currPos) === 34) {
-              s3 = peg$c236;
+              s3 = peg$c240;
               peg$currPos++;
             } else {
               s3 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c237); }
+              if (peg$silentFails === 0) { peg$fail(peg$c241); }
             }
             if (s3 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c277(s2);
+              s1 = peg$c281(s2);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -12924,7 +13030,7 @@ module.exports = (function() {
     function peg$parseregexp() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 114,
+      var key    = peg$currPos * 205 + 114,
           cached = peg$cache[key];
 
       if (cached) {
@@ -12933,33 +13039,33 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c278) {
-        s1 = peg$c278;
+      if (input.substr(peg$currPos, 3) === peg$c282) {
+        s1 = peg$c282;
         peg$currPos += 3;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c279); }
+        if (peg$silentFails === 0) { peg$fail(peg$c283); }
       }
       if (s1 !== peg$FAILED) {
         s2 = [];
         s3 = peg$currPos;
         s4 = [];
-        if (peg$c280.test(input.charAt(peg$currPos))) {
+        if (peg$c284.test(input.charAt(peg$currPos))) {
           s5 = input.charAt(peg$currPos);
           peg$currPos++;
         } else {
           s5 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c281); }
+          if (peg$silentFails === 0) { peg$fail(peg$c285); }
         }
         if (s5 !== peg$FAILED) {
           while (s5 !== peg$FAILED) {
             s4.push(s5);
-            if (peg$c280.test(input.charAt(peg$currPos))) {
+            if (peg$c284.test(input.charAt(peg$currPos))) {
               s5 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c281); }
+              if (peg$silentFails === 0) { peg$fail(peg$c285); }
             }
           }
         } else {
@@ -12967,29 +13073,29 @@ module.exports = (function() {
         }
         if (s4 !== peg$FAILED) {
           peg$reportedPos = s3;
-          s4 = peg$c282();
+          s4 = peg$c286();
         }
         s3 = s4;
         if (s3 === peg$FAILED) {
           s3 = peg$currPos;
           s4 = peg$currPos;
           s5 = [];
-          if (peg$c283.test(input.charAt(peg$currPos))) {
+          if (peg$c287.test(input.charAt(peg$currPos))) {
             s6 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s6 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c284); }
+            if (peg$silentFails === 0) { peg$fail(peg$c288); }
           }
           if (s6 !== peg$FAILED) {
             while (s6 !== peg$FAILED) {
               s5.push(s6);
-              if (peg$c283.test(input.charAt(peg$currPos))) {
+              if (peg$c287.test(input.charAt(peg$currPos))) {
                 s6 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s6 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c284); }
+                if (peg$silentFails === 0) { peg$fail(peg$c288); }
               }
             }
           } else {
@@ -13001,7 +13107,7 @@ module.exports = (function() {
           s4 = s5;
           if (s4 !== peg$FAILED) {
             peg$reportedPos = s3;
-            s4 = peg$c285(s4);
+            s4 = peg$c289(s4);
           }
           s3 = s4;
           if (s3 === peg$FAILED) {
@@ -13013,22 +13119,22 @@ module.exports = (function() {
             s2.push(s3);
             s3 = peg$currPos;
             s4 = [];
-            if (peg$c280.test(input.charAt(peg$currPos))) {
+            if (peg$c284.test(input.charAt(peg$currPos))) {
               s5 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c281); }
+              if (peg$silentFails === 0) { peg$fail(peg$c285); }
             }
             if (s5 !== peg$FAILED) {
               while (s5 !== peg$FAILED) {
                 s4.push(s5);
-                if (peg$c280.test(input.charAt(peg$currPos))) {
+                if (peg$c284.test(input.charAt(peg$currPos))) {
                   s5 = input.charAt(peg$currPos);
                   peg$currPos++;
                 } else {
                   s5 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c281); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c285); }
                 }
               }
             } else {
@@ -13036,29 +13142,29 @@ module.exports = (function() {
             }
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s3;
-              s4 = peg$c282();
+              s4 = peg$c286();
             }
             s3 = s4;
             if (s3 === peg$FAILED) {
               s3 = peg$currPos;
               s4 = peg$currPos;
               s5 = [];
-              if (peg$c283.test(input.charAt(peg$currPos))) {
+              if (peg$c287.test(input.charAt(peg$currPos))) {
                 s6 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s6 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c284); }
+                if (peg$silentFails === 0) { peg$fail(peg$c288); }
               }
               if (s6 !== peg$FAILED) {
                 while (s6 !== peg$FAILED) {
                   s5.push(s6);
-                  if (peg$c283.test(input.charAt(peg$currPos))) {
+                  if (peg$c287.test(input.charAt(peg$currPos))) {
                     s6 = input.charAt(peg$currPos);
                     peg$currPos++;
                   } else {
                     s6 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c284); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c288); }
                   }
                 }
               } else {
@@ -13070,7 +13176,7 @@ module.exports = (function() {
               s4 = s5;
               if (s4 !== peg$FAILED) {
                 peg$reportedPos = s3;
-                s4 = peg$c285(s4);
+                s4 = peg$c289(s4);
               }
               s3 = s4;
               if (s3 === peg$FAILED) {
@@ -13082,35 +13188,35 @@ module.exports = (function() {
           s2 = peg$c0;
         }
         if (s2 !== peg$FAILED) {
-          if (input.substr(peg$currPos, 3) === peg$c278) {
-            s3 = peg$c278;
+          if (input.substr(peg$currPos, 3) === peg$c282) {
+            s3 = peg$c282;
             peg$currPos += 3;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c279); }
+            if (peg$silentFails === 0) { peg$fail(peg$c283); }
           }
           if (s3 !== peg$FAILED) {
             s4 = [];
-            if (peg$c286.test(input.charAt(peg$currPos))) {
+            if (peg$c290.test(input.charAt(peg$currPos))) {
               s5 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c287); }
+              if (peg$silentFails === 0) { peg$fail(peg$c291); }
             }
             while (s5 !== peg$FAILED) {
               s4.push(s5);
-              if (peg$c286.test(input.charAt(peg$currPos))) {
+              if (peg$c290.test(input.charAt(peg$currPos))) {
                 s5 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c287); }
+                if (peg$silentFails === 0) { peg$fail(peg$c291); }
               }
             }
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c288(s2, s4);
+              s1 = peg$c292(s2, s4);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -13131,11 +13237,11 @@ module.exports = (function() {
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 47) {
-          s1 = peg$c289;
+          s1 = peg$c293;
           peg$currPos++;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c290); }
+          if (peg$silentFails === 0) { peg$fail(peg$c294); }
         }
         if (s1 !== peg$FAILED) {
           s2 = peg$currPos;
@@ -13143,22 +13249,22 @@ module.exports = (function() {
           s4 = peg$parseregexpData();
           if (s4 === peg$FAILED) {
             s4 = [];
-            if (peg$c291.test(input.charAt(peg$currPos))) {
+            if (peg$c295.test(input.charAt(peg$currPos))) {
               s5 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c292); }
+              if (peg$silentFails === 0) { peg$fail(peg$c296); }
             }
             if (s5 !== peg$FAILED) {
               while (s5 !== peg$FAILED) {
                 s4.push(s5);
-                if (peg$c291.test(input.charAt(peg$currPos))) {
+                if (peg$c295.test(input.charAt(peg$currPos))) {
                   s5 = input.charAt(peg$currPos);
                   peg$currPos++;
                 } else {
                   s5 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c292); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c296); }
                 }
               }
             } else {
@@ -13170,22 +13276,22 @@ module.exports = (function() {
             s4 = peg$parseregexpData();
             if (s4 === peg$FAILED) {
               s4 = [];
-              if (peg$c291.test(input.charAt(peg$currPos))) {
+              if (peg$c295.test(input.charAt(peg$currPos))) {
                 s5 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c292); }
+                if (peg$silentFails === 0) { peg$fail(peg$c296); }
               }
               if (s5 !== peg$FAILED) {
                 while (s5 !== peg$FAILED) {
                   s4.push(s5);
-                  if (peg$c291.test(input.charAt(peg$currPos))) {
+                  if (peg$c295.test(input.charAt(peg$currPos))) {
                     s5 = input.charAt(peg$currPos);
                     peg$currPos++;
                   } else {
                     s5 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c292); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c296); }
                   }
                 }
               } else {
@@ -13199,34 +13305,34 @@ module.exports = (function() {
           s2 = s3;
           if (s2 !== peg$FAILED) {
             if (input.charCodeAt(peg$currPos) === 47) {
-              s3 = peg$c289;
+              s3 = peg$c293;
               peg$currPos++;
             } else {
               s3 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c290); }
+              if (peg$silentFails === 0) { peg$fail(peg$c294); }
             }
             if (s3 !== peg$FAILED) {
               s4 = [];
-              if (peg$c286.test(input.charAt(peg$currPos))) {
+              if (peg$c290.test(input.charAt(peg$currPos))) {
                 s5 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c287); }
+                if (peg$silentFails === 0) { peg$fail(peg$c291); }
               }
               while (s5 !== peg$FAILED) {
                 s4.push(s5);
-                if (peg$c286.test(input.charAt(peg$currPos))) {
+                if (peg$c290.test(input.charAt(peg$currPos))) {
                   s5 = input.charAt(peg$currPos);
                   peg$currPos++;
                 } else {
                   s5 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c287); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c291); }
                 }
               }
               if (s4 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c293(s2, s4);
+                s1 = peg$c297(s2, s4);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -13254,7 +13360,7 @@ module.exports = (function() {
     function peg$parseregexpData() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 115,
+      var key    = peg$currPos * 205 + 115,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13264,32 +13370,32 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 91) {
-        s1 = peg$c100;
+        s1 = peg$c101;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c101); }
+        if (peg$silentFails === 0) { peg$fail(peg$c102); }
       }
       if (s1 !== peg$FAILED) {
         s2 = [];
-        if (peg$c294.test(input.charAt(peg$currPos))) {
+        if (peg$c298.test(input.charAt(peg$currPos))) {
           s3 = input.charAt(peg$currPos);
           peg$currPos++;
         } else {
           s3 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c295); }
+          if (peg$silentFails === 0) { peg$fail(peg$c299); }
         }
         if (s3 === peg$FAILED) {
           s3 = peg$parseregexpData();
         }
         while (s3 !== peg$FAILED) {
           s2.push(s3);
-          if (peg$c294.test(input.charAt(peg$currPos))) {
+          if (peg$c298.test(input.charAt(peg$currPos))) {
             s3 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c295); }
+            if (peg$silentFails === 0) { peg$fail(peg$c299); }
           }
           if (s3 === peg$FAILED) {
             s3 = peg$parseregexpData();
@@ -13297,11 +13403,11 @@ module.exports = (function() {
         }
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 93) {
-            s3 = peg$c102;
+            s3 = peg$c103;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c103); }
+            if (peg$silentFails === 0) { peg$fail(peg$c104); }
           }
           if (s3 !== peg$FAILED) {
             s1 = [s1, s2, s3];
@@ -13321,11 +13427,11 @@ module.exports = (function() {
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 92) {
-          s1 = peg$c271;
+          s1 = peg$c275;
           peg$currPos++;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c272); }
+          if (peg$silentFails === 0) { peg$fail(peg$c276); }
         }
         if (s1 !== peg$FAILED) {
           if (input.length > peg$currPos) {
@@ -13333,7 +13439,7 @@ module.exports = (function() {
             peg$currPos++;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c273); }
+            if (peg$silentFails === 0) { peg$fail(peg$c277); }
           }
           if (s2 !== peg$FAILED) {
             s1 = [s1, s2];
@@ -13356,7 +13462,7 @@ module.exports = (function() {
     function peg$parsehereregexpData() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 116,
+      var key    = peg$currPos * 205 + 116,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13366,11 +13472,11 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 91) {
-        s1 = peg$c100;
+        s1 = peg$c101;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c101); }
+        if (peg$silentFails === 0) { peg$fail(peg$c102); }
       }
       if (s1 !== peg$FAILED) {
         s2 = [];
@@ -13378,21 +13484,21 @@ module.exports = (function() {
         s4 = peg$parsehereregexpData();
         if (s4 !== peg$FAILED) {
           peg$reportedPos = s3;
-          s4 = peg$c296(s4);
+          s4 = peg$c300(s4);
         }
         s3 = s4;
         if (s3 === peg$FAILED) {
           s3 = peg$currPos;
-          if (peg$c297.test(input.charAt(peg$currPos))) {
+          if (peg$c301.test(input.charAt(peg$currPos))) {
             s4 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s4 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c298); }
+            if (peg$silentFails === 0) { peg$fail(peg$c302); }
           }
           if (s4 !== peg$FAILED) {
             peg$reportedPos = s3;
-            s4 = peg$c299(s4);
+            s4 = peg$c303(s4);
           }
           s3 = s4;
         }
@@ -13402,36 +13508,36 @@ module.exports = (function() {
           s4 = peg$parsehereregexpData();
           if (s4 !== peg$FAILED) {
             peg$reportedPos = s3;
-            s4 = peg$c296(s4);
+            s4 = peg$c300(s4);
           }
           s3 = s4;
           if (s3 === peg$FAILED) {
             s3 = peg$currPos;
-            if (peg$c297.test(input.charAt(peg$currPos))) {
+            if (peg$c301.test(input.charAt(peg$currPos))) {
               s4 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s4 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c298); }
+              if (peg$silentFails === 0) { peg$fail(peg$c302); }
             }
             if (s4 !== peg$FAILED) {
               peg$reportedPos = s3;
-              s4 = peg$c299(s4);
+              s4 = peg$c303(s4);
             }
             s3 = s4;
           }
         }
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 93) {
-            s3 = peg$c102;
+            s3 = peg$c103;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c103); }
+            if (peg$silentFails === 0) { peg$fail(peg$c104); }
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c300(s2);
+            s1 = peg$c304(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -13450,11 +13556,11 @@ module.exports = (function() {
         s1 = peg$currPos;
         s2 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 92) {
-          s3 = peg$c271;
+          s3 = peg$c275;
           peg$currPos++;
         } else {
           s3 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c272); }
+          if (peg$silentFails === 0) { peg$fail(peg$c276); }
         }
         if (s3 !== peg$FAILED) {
           if (input.length > peg$currPos) {
@@ -13462,7 +13568,7 @@ module.exports = (function() {
             peg$currPos++;
           } else {
             s4 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c273); }
+            if (peg$silentFails === 0) { peg$fail(peg$c277); }
           }
           if (s4 !== peg$FAILED) {
             s3 = [s3, s4];
@@ -13481,7 +13587,7 @@ module.exports = (function() {
         s1 = s2;
         if (s1 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c301(s1);
+          s1 = peg$c305(s1);
         }
         s0 = s1;
         if (s0 === peg$FAILED) {
@@ -13489,19 +13595,19 @@ module.exports = (function() {
           s1 = peg$currPos;
           s2 = peg$currPos;
           if (input.charCodeAt(peg$currPos) === 47) {
-            s3 = peg$c289;
+            s3 = peg$c293;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c290); }
+            if (peg$silentFails === 0) { peg$fail(peg$c294); }
           }
           if (s3 !== peg$FAILED) {
             if (input.charCodeAt(peg$currPos) === 47) {
-              s4 = peg$c289;
+              s4 = peg$c293;
               peg$currPos++;
             } else {
               s4 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c290); }
+              if (peg$silentFails === 0) { peg$fail(peg$c294); }
             }
             if (s4 === peg$FAILED) {
               s4 = peg$c1;
@@ -13510,11 +13616,11 @@ module.exports = (function() {
               s5 = peg$currPos;
               peg$silentFails++;
               if (input.charCodeAt(peg$currPos) === 47) {
-                s6 = peg$c289;
+                s6 = peg$c293;
                 peg$currPos++;
               } else {
                 s6 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c290); }
+                if (peg$silentFails === 0) { peg$fail(peg$c294); }
               }
               peg$silentFails--;
               if (s6 === peg$FAILED) {
@@ -13544,27 +13650,27 @@ module.exports = (function() {
           s1 = s2;
           if (s1 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c302(s1);
+            s1 = peg$c306(s1);
           }
           s0 = s1;
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 35) {
-              s1 = peg$c241;
+              s1 = peg$c245;
               peg$currPos++;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c242); }
+              if (peg$silentFails === 0) { peg$fail(peg$c246); }
             }
             if (s1 !== peg$FAILED) {
               s2 = peg$currPos;
               peg$silentFails++;
               if (input.charCodeAt(peg$currPos) === 123) {
-                s3 = peg$c176;
+                s3 = peg$c177;
                 peg$currPos++;
               } else {
                 s3 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c177); }
+                if (peg$silentFails === 0) { peg$fail(peg$c178); }
               }
               peg$silentFails--;
               if (s3 === peg$FAILED) {
@@ -13575,7 +13681,7 @@ module.exports = (function() {
               }
               if (s2 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c303(s1);
+                s1 = peg$c307(s1);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -13587,12 +13693,12 @@ module.exports = (function() {
             }
             if (s0 === peg$FAILED) {
               s0 = peg$currPos;
-              if (input.substr(peg$currPos, 2) === peg$c274) {
-                s1 = peg$c274;
+              if (input.substr(peg$currPos, 2) === peg$c278) {
+                s1 = peg$c278;
                 peg$currPos += 2;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c275); }
+                if (peg$silentFails === 0) { peg$fail(peg$c279); }
               }
               if (s1 !== peg$FAILED) {
                 s2 = peg$parse_();
@@ -13602,15 +13708,15 @@ module.exports = (function() {
                     s4 = peg$parse_();
                     if (s4 !== peg$FAILED) {
                       if (input.charCodeAt(peg$currPos) === 125) {
-                        s5 = peg$c178;
+                        s5 = peg$c179;
                         peg$currPos++;
                       } else {
                         s5 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c179); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c180); }
                       }
                       if (s5 !== peg$FAILED) {
                         peg$reportedPos = s0;
-                        s1 = peg$c304(s3);
+                        s1 = peg$c308(s3);
                         s0 = s1;
                       } else {
                         peg$currPos = s0;
@@ -13645,7 +13751,7 @@ module.exports = (function() {
     function peg$parsethrow() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 117,
+      var key    = peg$currPos * 205 + 117,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13661,7 +13767,7 @@ module.exports = (function() {
           s3 = peg$parsesecondaryExpression();
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c305(s3);
+            s1 = peg$c309(s3);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -13684,7 +13790,7 @@ module.exports = (function() {
     function peg$parsereturn() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 118,
+      var key    = peg$currPos * 205 + 118,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13703,7 +13809,7 @@ module.exports = (function() {
           }
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c306(s3);
+            s1 = peg$c310(s3);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -13726,7 +13832,7 @@ module.exports = (function() {
     function peg$parsecontinue() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 119,
+      var key    = peg$currPos * 205 + 119,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13738,7 +13844,7 @@ module.exports = (function() {
       s1 = peg$parseCONTINUE();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c307();
+        s1 = peg$c311();
       }
       s0 = s1;
 
@@ -13750,7 +13856,7 @@ module.exports = (function() {
     function peg$parsebreak() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 120,
+      var key    = peg$currPos * 205 + 120,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13762,7 +13868,7 @@ module.exports = (function() {
       s1 = peg$parseBREAK();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c308();
+        s1 = peg$c312();
       }
       s0 = s1;
 
@@ -13774,7 +13880,7 @@ module.exports = (function() {
     function peg$parsedebugger() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 121,
+      var key    = peg$currPos * 205 + 121,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13786,7 +13892,7 @@ module.exports = (function() {
       s1 = peg$parseDEBUGGER();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c309();
+        s1 = peg$c313();
       }
       s0 = s1;
 
@@ -13798,7 +13904,7 @@ module.exports = (function() {
     function peg$parseundefined() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 122,
+      var key    = peg$currPos * 205 + 122,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13810,7 +13916,7 @@ module.exports = (function() {
       s1 = peg$parseUNDEFINED();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c310();
+        s1 = peg$c314();
       }
       s0 = s1;
 
@@ -13822,7 +13928,7 @@ module.exports = (function() {
     function peg$parsenull() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 123,
+      var key    = peg$currPos * 205 + 123,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13834,7 +13940,7 @@ module.exports = (function() {
       s1 = peg$parseNULL();
       if (s1 !== peg$FAILED) {
         peg$reportedPos = s0;
-        s1 = peg$c311();
+        s1 = peg$c315();
       }
       s0 = s1;
 
@@ -13846,7 +13952,7 @@ module.exports = (function() {
     function peg$parseunassignable() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 124,
+      var key    = peg$currPos * 205 + 124,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13855,20 +13961,20 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 9) === peg$c312) {
-        s1 = peg$c312;
+      if (input.substr(peg$currPos, 9) === peg$c316) {
+        s1 = peg$c316;
         peg$currPos += 9;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c313); }
+        if (peg$silentFails === 0) { peg$fail(peg$c317); }
       }
       if (s1 === peg$FAILED) {
-        if (input.substr(peg$currPos, 4) === peg$c314) {
-          s1 = peg$c314;
+        if (input.substr(peg$currPos, 4) === peg$c318) {
+          s1 = peg$c318;
           peg$currPos += 4;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c315); }
+          if (peg$silentFails === 0) { peg$fail(peg$c319); }
         }
       }
       if (s1 !== peg$FAILED) {
@@ -13902,7 +14008,7 @@ module.exports = (function() {
     function peg$parseCompoundAssignable() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 125,
+      var key    = peg$currPos * 205 + 125,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13927,7 +14033,7 @@ module.exports = (function() {
           s2 = peg$parseidentifier();
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c316(s2);
+            s1 = peg$c320(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -13947,7 +14053,7 @@ module.exports = (function() {
     function peg$parseAssignable() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 126,
+      var key    = peg$currPos * 205 + 126,
           cached = peg$cache[key];
 
       if (cached) {
@@ -13972,7 +14078,7 @@ module.exports = (function() {
           s2 = peg$parseidentifier();
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c316(s2);
+            s1 = peg$c320(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -13998,7 +14104,7 @@ module.exports = (function() {
     function peg$parsepositionalDestructuring() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 127,
+      var key    = peg$currPos * 205 + 127,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14008,11 +14114,11 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 91) {
-        s1 = peg$c100;
+        s1 = peg$c101;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c101); }
+        if (peg$silentFails === 0) { peg$fail(peg$c102); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$parsepositionalDestructuringBody();
@@ -14025,15 +14131,15 @@ module.exports = (function() {
             s4 = peg$parse_();
             if (s4 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 93) {
-                s5 = peg$c102;
+                s5 = peg$c103;
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c103); }
+                if (peg$silentFails === 0) { peg$fail(peg$c104); }
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c173(s2);
+                s1 = peg$c174(s2);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -14064,7 +14170,7 @@ module.exports = (function() {
     function peg$parsepositionalDestructuringBody() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 128,
+      var key    = peg$currPos * 205 + 128,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14080,7 +14186,7 @@ module.exports = (function() {
           s3 = peg$parseDEDENT();
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c174(s2);
+            s1 = peg$c175(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -14104,7 +14210,7 @@ module.exports = (function() {
           }
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c175(s2);
+            s1 = peg$c176(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -14124,7 +14230,7 @@ module.exports = (function() {
     function peg$parsepositionalDestructuringMemberList() {
       var s0, s1, s2, s3, s4, s5, s6, s7;
 
-      var key    = peg$currPos * 204 + 129,
+      var key    = peg$currPos * 205 + 129,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14228,7 +14334,7 @@ module.exports = (function() {
     function peg$parsepositionalDestructuringMember() {
       var s0;
 
-      var key    = peg$currPos * 204 + 130,
+      var key    = peg$currPos * 205 + 130,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14249,7 +14355,7 @@ module.exports = (function() {
     function peg$parsenamedDestructuring() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 131,
+      var key    = peg$currPos * 205 + 131,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14259,11 +14365,11 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 123) {
-        s1 = peg$c176;
+        s1 = peg$c177;
         peg$currPos++;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c177); }
+        if (peg$silentFails === 0) { peg$fail(peg$c178); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$parsenamedDestructuringBody();
@@ -14276,15 +14382,15 @@ module.exports = (function() {
             s4 = peg$parse_();
             if (s4 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 125) {
-                s5 = peg$c178;
+                s5 = peg$c179;
                 peg$currPos++;
               } else {
                 s5 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c179); }
+                if (peg$silentFails === 0) { peg$fail(peg$c180); }
               }
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c180(s2);
+                s1 = peg$c181(s2);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -14315,7 +14421,7 @@ module.exports = (function() {
     function peg$parsenamedDestructuringBody() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 132,
+      var key    = peg$currPos * 205 + 132,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14331,7 +14437,7 @@ module.exports = (function() {
           s3 = peg$parseDEDENT();
           if (s3 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c174(s2);
+            s1 = peg$c175(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -14355,7 +14461,7 @@ module.exports = (function() {
           }
           if (s2 !== peg$FAILED) {
             peg$reportedPos = s0;
-            s1 = peg$c175(s2);
+            s1 = peg$c176(s2);
             s0 = s1;
           } else {
             peg$currPos = s0;
@@ -14375,7 +14481,7 @@ module.exports = (function() {
     function peg$parsenamedDestructuringMemberList() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9;
 
-      var key    = peg$currPos * 204 + 133,
+      var key    = peg$currPos * 205 + 133,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14521,7 +14627,7 @@ module.exports = (function() {
     function peg$parsenamedDestructuringMember() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 134,
+      var key    = peg$currPos * 205 + 134,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14535,11 +14641,11 @@ module.exports = (function() {
         s2 = peg$parse_();
         if (s2 !== peg$FAILED) {
           if (input.charCodeAt(peg$currPos) === 58) {
-            s3 = peg$c148;
+            s3 = peg$c149;
             peg$currPos++;
           } else {
             s3 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c149); }
+            if (peg$silentFails === 0) { peg$fail(peg$c150); }
           }
           if (s3 !== peg$FAILED) {
             s4 = peg$parse_();
@@ -14547,7 +14653,7 @@ module.exports = (function() {
               s5 = peg$parseAssignable();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c184(s1, s5);
+                s1 = peg$c185(s1, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -14574,7 +14680,7 @@ module.exports = (function() {
         s1 = peg$parsecontextVar();
         if (s1 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c317(s1);
+          s1 = peg$c321(s1);
         }
         s0 = s1;
         if (s0 === peg$FAILED) {
@@ -14593,7 +14699,7 @@ module.exports = (function() {
             s2 = peg$parseidentifier();
             if (s2 !== peg$FAILED) {
               peg$reportedPos = s0;
-              s1 = peg$c318(s2);
+              s1 = peg$c322(s2);
               s0 = s1;
             } else {
               peg$currPos = s0;
@@ -14614,7 +14720,7 @@ module.exports = (function() {
     function peg$parseidentifier() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 135,
+      var key    = peg$currPos * 205 + 135,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14637,7 +14743,7 @@ module.exports = (function() {
         s2 = peg$parseidentifierName();
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c183(s2);
+          s1 = peg$c184(s2);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -14656,7 +14762,7 @@ module.exports = (function() {
     function peg$parseidentifierName() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 136,
+      var key    = peg$currPos * 205 + 136,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14698,7 +14804,7 @@ module.exports = (function() {
     function peg$parseidentifierStart() {
       var s0;
 
-      var key    = peg$currPos * 204 + 137,
+      var key    = peg$currPos * 205 + 137,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14708,12 +14814,12 @@ module.exports = (function() {
 
       s0 = peg$parseUnicodeLetter();
       if (s0 === peg$FAILED) {
-        if (peg$c319.test(input.charAt(peg$currPos))) {
+        if (peg$c323.test(input.charAt(peg$currPos))) {
           s0 = input.charAt(peg$currPos);
           peg$currPos++;
         } else {
           s0 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c320); }
+          if (peg$silentFails === 0) { peg$fail(peg$c324); }
         }
         if (s0 === peg$FAILED) {
           s0 = peg$parseUnicodeEscapeSequence();
@@ -14728,7 +14834,7 @@ module.exports = (function() {
     function peg$parseidentifierPart() {
       var s0;
 
-      var key    = peg$currPos * 204 + 138,
+      var key    = peg$currPos * 205 + 138,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14761,7 +14867,7 @@ module.exports = (function() {
     function peg$parse__() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 139,
+      var key    = peg$currPos * 205 + 139,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14833,7 +14939,7 @@ module.exports = (function() {
     function peg$parse_() {
       var s0;
 
-      var key    = peg$currPos * 204 + 140,
+      var key    = peg$currPos * 205 + 140,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14854,7 +14960,7 @@ module.exports = (function() {
     function peg$parsecomment() {
       var s0;
 
-      var key    = peg$currPos * 204 + 141,
+      var key    = peg$currPos * 205 + 141,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14875,7 +14981,7 @@ module.exports = (function() {
     function peg$parsesingleLineComment() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 142,
+      var key    = peg$currPos * 205 + 142,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14886,11 +14992,11 @@ module.exports = (function() {
       s0 = peg$currPos;
       s1 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 35) {
-        s2 = peg$c241;
+        s2 = peg$c245;
         peg$currPos++;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c242); }
+        if (peg$silentFails === 0) { peg$fail(peg$c246); }
       }
       if (s2 !== peg$FAILED) {
         s3 = [];
@@ -14911,7 +15017,7 @@ module.exports = (function() {
             peg$currPos++;
           } else {
             s6 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c273); }
+            if (peg$silentFails === 0) { peg$fail(peg$c277); }
           }
           if (s6 !== peg$FAILED) {
             s5 = [s5, s6];
@@ -14943,7 +15049,7 @@ module.exports = (function() {
               peg$currPos++;
             } else {
               s6 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c273); }
+              if (peg$silentFails === 0) { peg$fail(peg$c277); }
             }
             if (s6 !== peg$FAILED) {
               s5 = [s5, s6];
@@ -14981,7 +15087,7 @@ module.exports = (function() {
     function peg$parseblockComment() {
       var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9;
 
-      var key    = peg$currPos * 204 + 143,
+      var key    = peg$currPos * 205 + 143,
           cached = peg$cache[key];
 
       if (cached) {
@@ -14991,46 +15097,46 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c321) {
-        s2 = peg$c321;
+      if (input.substr(peg$currPos, 3) === peg$c325) {
+        s2 = peg$c325;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c322); }
+        if (peg$silentFails === 0) { peg$fail(peg$c326); }
       }
       if (s2 !== peg$FAILED) {
-        if (peg$c323.test(input.charAt(peg$currPos))) {
+        if (peg$c327.test(input.charAt(peg$currPos))) {
           s3 = input.charAt(peg$currPos);
           peg$currPos++;
         } else {
           s3 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c324); }
+          if (peg$silentFails === 0) { peg$fail(peg$c328); }
         }
         if (s3 !== peg$FAILED) {
           s4 = [];
-          if (peg$c323.test(input.charAt(peg$currPos))) {
+          if (peg$c327.test(input.charAt(peg$currPos))) {
             s5 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s5 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c324); }
+            if (peg$silentFails === 0) { peg$fail(peg$c328); }
           }
           if (s5 === peg$FAILED) {
             s5 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 35) {
-              s6 = peg$c241;
+              s6 = peg$c245;
               peg$currPos++;
             } else {
               s6 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c242); }
+              if (peg$silentFails === 0) { peg$fail(peg$c246); }
             }
             if (s6 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 35) {
-                s7 = peg$c241;
+                s7 = peg$c245;
                 peg$currPos++;
               } else {
                 s7 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                if (peg$silentFails === 0) { peg$fail(peg$c246); }
               }
               if (s7 === peg$FAILED) {
                 s7 = peg$c1;
@@ -15039,11 +15145,11 @@ module.exports = (function() {
                 s8 = peg$currPos;
                 peg$silentFails++;
                 if (input.charCodeAt(peg$currPos) === 35) {
-                  s9 = peg$c241;
+                  s9 = peg$c245;
                   peg$currPos++;
                 } else {
                   s9 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c246); }
                 }
                 peg$silentFails--;
                 if (s9 === peg$FAILED) {
@@ -15070,29 +15176,29 @@ module.exports = (function() {
           }
           while (s5 !== peg$FAILED) {
             s4.push(s5);
-            if (peg$c323.test(input.charAt(peg$currPos))) {
+            if (peg$c327.test(input.charAt(peg$currPos))) {
               s5 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c324); }
+              if (peg$silentFails === 0) { peg$fail(peg$c328); }
             }
             if (s5 === peg$FAILED) {
               s5 = peg$currPos;
               if (input.charCodeAt(peg$currPos) === 35) {
-                s6 = peg$c241;
+                s6 = peg$c245;
                 peg$currPos++;
               } else {
                 s6 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                if (peg$silentFails === 0) { peg$fail(peg$c246); }
               }
               if (s6 !== peg$FAILED) {
                 if (input.charCodeAt(peg$currPos) === 35) {
-                  s7 = peg$c241;
+                  s7 = peg$c245;
                   peg$currPos++;
                 } else {
                   s7 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c246); }
                 }
                 if (s7 === peg$FAILED) {
                   s7 = peg$c1;
@@ -15101,11 +15207,11 @@ module.exports = (function() {
                   s8 = peg$currPos;
                   peg$silentFails++;
                   if (input.charCodeAt(peg$currPos) === 35) {
-                    s9 = peg$c241;
+                    s9 = peg$c245;
                     peg$currPos++;
                   } else {
                     s9 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c242); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c246); }
                   }
                   peg$silentFails--;
                   if (s9 === peg$FAILED) {
@@ -15132,12 +15238,12 @@ module.exports = (function() {
             }
           }
           if (s4 !== peg$FAILED) {
-            if (input.substr(peg$currPos, 3) === peg$c321) {
-              s5 = peg$c321;
+            if (input.substr(peg$currPos, 3) === peg$c325) {
+              s5 = peg$c325;
               peg$currPos += 3;
             } else {
               s5 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c322); }
+              if (peg$silentFails === 0) { peg$fail(peg$c326); }
             }
             if (s5 !== peg$FAILED) {
               s2 = [s2, s3, s4, s5];
@@ -15171,7 +15277,7 @@ module.exports = (function() {
     function peg$parsewhitespace() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 144,
+      var key    = peg$currPos * 205 + 144,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15179,49 +15285,49 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c325.test(input.charAt(peg$currPos))) {
+      if (peg$c329.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c326); }
+        if (peg$silentFails === 0) { peg$fail(peg$c330); }
       }
       if (s0 === peg$FAILED) {
         if (input.charCodeAt(peg$currPos) === 13) {
-          s0 = peg$c327;
+          s0 = peg$c331;
           peg$currPos++;
         } else {
           s0 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c328); }
+          if (peg$silentFails === 0) { peg$fail(peg$c332); }
         }
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
           s1 = peg$currPos;
           if (input.charCodeAt(peg$currPos) === 92) {
-            s2 = peg$c271;
+            s2 = peg$c275;
             peg$currPos++;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c272); }
+            if (peg$silentFails === 0) { peg$fail(peg$c276); }
           }
           if (s2 !== peg$FAILED) {
             if (input.charCodeAt(peg$currPos) === 13) {
-              s3 = peg$c327;
+              s3 = peg$c331;
               peg$currPos++;
             } else {
               s3 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c328); }
+              if (peg$silentFails === 0) { peg$fail(peg$c332); }
             }
             if (s3 === peg$FAILED) {
               s3 = peg$c1;
             }
             if (s3 !== peg$FAILED) {
               if (input.charCodeAt(peg$currPos) === 10) {
-                s4 = peg$c329;
+                s4 = peg$c333;
                 peg$currPos++;
               } else {
                 s4 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c330); }
+                if (peg$silentFails === 0) { peg$fail(peg$c334); }
               }
               if (s4 !== peg$FAILED) {
                 s2 = [s2, s3, s4];
@@ -15253,7 +15359,7 @@ module.exports = (function() {
     function peg$parseINDENT() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 145,
+      var key    = peg$currPos * 205 + 145,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15265,15 +15371,15 @@ module.exports = (function() {
       s1 = peg$parse__();
       if (s1 !== peg$FAILED) {
         if (input.charCodeAt(peg$currPos) === 61423) {
-          s2 = peg$c331;
+          s2 = peg$c335;
           peg$currPos++;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c332); }
+          if (peg$silentFails === 0) { peg$fail(peg$c336); }
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c333(s1);
+          s1 = peg$c337(s1);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -15292,7 +15398,7 @@ module.exports = (function() {
     function peg$parseDEDENT() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 146,
+      var key    = peg$currPos * 205 + 146,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15326,15 +15432,15 @@ module.exports = (function() {
       s1 = s2;
       if (s1 !== peg$FAILED) {
         if (input.charCodeAt(peg$currPos) === 61438) {
-          s2 = peg$c334;
+          s2 = peg$c338;
           peg$currPos++;
         } else {
           s2 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c335); }
+          if (peg$silentFails === 0) { peg$fail(peg$c339); }
         }
         if (s2 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c333(s1);
+          s1 = peg$c337(s1);
           s0 = s1;
         } else {
           peg$currPos = s0;
@@ -15353,7 +15459,7 @@ module.exports = (function() {
     function peg$parseTERM() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 147,
+      var key    = peg$currPos * 205 + 147,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15364,22 +15470,22 @@ module.exports = (function() {
       s0 = peg$currPos;
       s1 = peg$currPos;
       if (input.charCodeAt(peg$currPos) === 13) {
-        s2 = peg$c327;
+        s2 = peg$c331;
         peg$currPos++;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c328); }
+        if (peg$silentFails === 0) { peg$fail(peg$c332); }
       }
       if (s2 === peg$FAILED) {
         s2 = peg$c1;
       }
       if (s2 !== peg$FAILED) {
         if (input.charCodeAt(peg$currPos) === 10) {
-          s3 = peg$c329;
+          s3 = peg$c333;
           peg$currPos++;
         } else {
           s3 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c330); }
+          if (peg$silentFails === 0) { peg$fail(peg$c334); }
         }
         if (s3 !== peg$FAILED) {
           s2 = [s2, s3];
@@ -15399,15 +15505,15 @@ module.exports = (function() {
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 61439) {
-          s1 = peg$c336;
+          s1 = peg$c340;
           peg$currPos++;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c337); }
+          if (peg$silentFails === 0) { peg$fail(peg$c341); }
         }
         if (s1 !== peg$FAILED) {
           peg$reportedPos = s0;
-          s1 = peg$c338();
+          s1 = peg$c342();
         }
         s0 = s1;
       }
@@ -15420,7 +15526,7 @@ module.exports = (function() {
     function peg$parseTERMINATOR() {
       var s0, s1, s2, s3, s4, s5, s6;
 
-      var key    = peg$currPos * 204 + 148,
+      var key    = peg$currPos * 205 + 148,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15516,7 +15622,7 @@ module.exports = (function() {
     function peg$parseTERMINDENT() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 149,
+      var key    = peg$currPos * 205 + 149,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15553,7 +15659,7 @@ module.exports = (function() {
     function peg$parseAND() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 150,
+      var key    = peg$currPos * 205 + 150,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15563,12 +15669,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c339) {
-        s2 = peg$c339;
+      if (input.substr(peg$currPos, 3) === peg$c343) {
+        s2 = peg$c343;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c340); }
+        if (peg$silentFails === 0) { peg$fail(peg$c344); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15605,7 +15711,7 @@ module.exports = (function() {
     function peg$parseBREAK() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 151,
+      var key    = peg$currPos * 205 + 151,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15615,12 +15721,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 5) === peg$c341) {
-        s2 = peg$c341;
+      if (input.substr(peg$currPos, 5) === peg$c345) {
+        s2 = peg$c345;
         peg$currPos += 5;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c342); }
+        if (peg$silentFails === 0) { peg$fail(peg$c346); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15657,7 +15763,7 @@ module.exports = (function() {
     function peg$parseBY() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 152,
+      var key    = peg$currPos * 205 + 152,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15667,12 +15773,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c343) {
-        s2 = peg$c343;
+      if (input.substr(peg$currPos, 2) === peg$c347) {
+        s2 = peg$c347;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c344); }
+        if (peg$silentFails === 0) { peg$fail(peg$c348); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15709,7 +15815,7 @@ module.exports = (function() {
     function peg$parseCATCH() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 153,
+      var key    = peg$currPos * 205 + 153,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15719,12 +15825,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 5) === peg$c345) {
-        s2 = peg$c345;
+      if (input.substr(peg$currPos, 5) === peg$c349) {
+        s2 = peg$c349;
         peg$currPos += 5;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c346); }
+        if (peg$silentFails === 0) { peg$fail(peg$c350); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15761,7 +15867,7 @@ module.exports = (function() {
     function peg$parseCONTINUE() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 154,
+      var key    = peg$currPos * 205 + 154,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15771,12 +15877,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 8) === peg$c347) {
-        s2 = peg$c347;
+      if (input.substr(peg$currPos, 8) === peg$c351) {
+        s2 = peg$c351;
         peg$currPos += 8;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c348); }
+        if (peg$silentFails === 0) { peg$fail(peg$c352); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15813,7 +15919,7 @@ module.exports = (function() {
     function peg$parseCLASS() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 155,
+      var key    = peg$currPos * 205 + 155,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15823,12 +15929,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 5) === peg$c349) {
-        s2 = peg$c349;
+      if (input.substr(peg$currPos, 5) === peg$c353) {
+        s2 = peg$c353;
         peg$currPos += 5;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c350); }
+        if (peg$silentFails === 0) { peg$fail(peg$c354); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15865,7 +15971,7 @@ module.exports = (function() {
     function peg$parseDELETE() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 156,
+      var key    = peg$currPos * 205 + 156,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15875,12 +15981,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 6) === peg$c351) {
-        s2 = peg$c351;
+      if (input.substr(peg$currPos, 6) === peg$c355) {
+        s2 = peg$c355;
         peg$currPos += 6;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c352); }
+        if (peg$silentFails === 0) { peg$fail(peg$c356); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15917,7 +16023,7 @@ module.exports = (function() {
     function peg$parseDEBUGGER() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 157,
+      var key    = peg$currPos * 205 + 157,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15927,12 +16033,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 8) === peg$c353) {
-        s2 = peg$c353;
+      if (input.substr(peg$currPos, 8) === peg$c357) {
+        s2 = peg$c357;
         peg$currPos += 8;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c354); }
+        if (peg$silentFails === 0) { peg$fail(peg$c358); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -15969,7 +16075,7 @@ module.exports = (function() {
     function peg$parseDO() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 158,
+      var key    = peg$currPos * 205 + 158,
           cached = peg$cache[key];
 
       if (cached) {
@@ -15979,12 +16085,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c355) {
-        s2 = peg$c355;
+      if (input.substr(peg$currPos, 2) === peg$c359) {
+        s2 = peg$c359;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c356); }
+        if (peg$silentFails === 0) { peg$fail(peg$c360); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16021,7 +16127,7 @@ module.exports = (function() {
     function peg$parseELSE() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 159,
+      var key    = peg$currPos * 205 + 159,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16031,12 +16137,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c357) {
-        s2 = peg$c357;
+      if (input.substr(peg$currPos, 4) === peg$c361) {
+        s2 = peg$c361;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c358); }
+        if (peg$silentFails === 0) { peg$fail(peg$c362); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16073,7 +16179,7 @@ module.exports = (function() {
     function peg$parseEXTENDS() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 160,
+      var key    = peg$currPos * 205 + 160,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16083,12 +16189,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 7) === peg$c359) {
-        s2 = peg$c359;
+      if (input.substr(peg$currPos, 7) === peg$c363) {
+        s2 = peg$c363;
         peg$currPos += 7;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c360); }
+        if (peg$silentFails === 0) { peg$fail(peg$c364); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16125,7 +16231,7 @@ module.exports = (function() {
     function peg$parseFALSE() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 161,
+      var key    = peg$currPos * 205 + 161,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16135,12 +16241,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 5) === peg$c361) {
-        s2 = peg$c361;
+      if (input.substr(peg$currPos, 5) === peg$c365) {
+        s2 = peg$c365;
         peg$currPos += 5;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c362); }
+        if (peg$silentFails === 0) { peg$fail(peg$c366); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16177,7 +16283,7 @@ module.exports = (function() {
     function peg$parseFINALLY() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 162,
+      var key    = peg$currPos * 205 + 162,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16187,12 +16293,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 7) === peg$c363) {
-        s2 = peg$c363;
+      if (input.substr(peg$currPos, 7) === peg$c367) {
+        s2 = peg$c367;
         peg$currPos += 7;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c364); }
+        if (peg$silentFails === 0) { peg$fail(peg$c368); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16229,7 +16335,7 @@ module.exports = (function() {
     function peg$parseFOR() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 163,
+      var key    = peg$currPos * 205 + 163,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16239,12 +16345,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c365) {
-        s2 = peg$c365;
+      if (input.substr(peg$currPos, 3) === peg$c369) {
+        s2 = peg$c369;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c366); }
+        if (peg$silentFails === 0) { peg$fail(peg$c370); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16281,7 +16387,7 @@ module.exports = (function() {
     function peg$parseIF() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 164,
+      var key    = peg$currPos * 205 + 164,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16291,12 +16397,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c367) {
-        s2 = peg$c367;
+      if (input.substr(peg$currPos, 2) === peg$c371) {
+        s2 = peg$c371;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c368); }
+        if (peg$silentFails === 0) { peg$fail(peg$c372); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16333,7 +16439,7 @@ module.exports = (function() {
     function peg$parseIN() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 165,
+      var key    = peg$currPos * 205 + 165,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16343,12 +16449,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c369) {
-        s2 = peg$c369;
+      if (input.substr(peg$currPos, 2) === peg$c373) {
+        s2 = peg$c373;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c370); }
+        if (peg$silentFails === 0) { peg$fail(peg$c374); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16385,7 +16491,7 @@ module.exports = (function() {
     function peg$parseINSTANCEOF() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 166,
+      var key    = peg$currPos * 205 + 166,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16395,12 +16501,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 10) === peg$c371) {
-        s2 = peg$c371;
+      if (input.substr(peg$currPos, 10) === peg$c375) {
+        s2 = peg$c375;
         peg$currPos += 10;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c372); }
+        if (peg$silentFails === 0) { peg$fail(peg$c376); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16437,7 +16543,7 @@ module.exports = (function() {
     function peg$parseIS() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 167,
+      var key    = peg$currPos * 205 + 167,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16447,12 +16553,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c373) {
-        s2 = peg$c373;
+      if (input.substr(peg$currPos, 2) === peg$c377) {
+        s2 = peg$c377;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c374); }
+        if (peg$silentFails === 0) { peg$fail(peg$c378); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16489,7 +16595,7 @@ module.exports = (function() {
     function peg$parseISNT() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 168,
+      var key    = peg$currPos * 205 + 168,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16499,12 +16605,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c375) {
-        s2 = peg$c375;
+      if (input.substr(peg$currPos, 4) === peg$c379) {
+        s2 = peg$c379;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c376); }
+        if (peg$silentFails === 0) { peg$fail(peg$c380); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16541,7 +16647,7 @@ module.exports = (function() {
     function peg$parseLOOP() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 169,
+      var key    = peg$currPos * 205 + 169,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16551,12 +16657,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c377) {
-        s2 = peg$c377;
+      if (input.substr(peg$currPos, 4) === peg$c381) {
+        s2 = peg$c381;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c378); }
+        if (peg$silentFails === 0) { peg$fail(peg$c382); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16593,7 +16699,7 @@ module.exports = (function() {
     function peg$parseNEW() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 170,
+      var key    = peg$currPos * 205 + 170,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16603,12 +16709,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c379) {
-        s2 = peg$c379;
+      if (input.substr(peg$currPos, 3) === peg$c383) {
+        s2 = peg$c383;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c380); }
+        if (peg$silentFails === 0) { peg$fail(peg$c384); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16645,7 +16751,7 @@ module.exports = (function() {
     function peg$parseNO() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 171,
+      var key    = peg$currPos * 205 + 171,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16655,12 +16761,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c381) {
-        s2 = peg$c381;
+      if (input.substr(peg$currPos, 2) === peg$c385) {
+        s2 = peg$c385;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c382); }
+        if (peg$silentFails === 0) { peg$fail(peg$c386); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16697,7 +16803,7 @@ module.exports = (function() {
     function peg$parseNOT() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 172,
+      var key    = peg$currPos * 205 + 172,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16707,12 +16813,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c383) {
-        s2 = peg$c383;
+      if (input.substr(peg$currPos, 3) === peg$c387) {
+        s2 = peg$c387;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c384); }
+        if (peg$silentFails === 0) { peg$fail(peg$c388); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16749,7 +16855,7 @@ module.exports = (function() {
     function peg$parseNULL() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 173,
+      var key    = peg$currPos * 205 + 173,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16759,12 +16865,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c385) {
-        s2 = peg$c385;
+      if (input.substr(peg$currPos, 4) === peg$c389) {
+        s2 = peg$c389;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c386); }
+        if (peg$silentFails === 0) { peg$fail(peg$c390); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16801,7 +16907,7 @@ module.exports = (function() {
     function peg$parseOF() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 174,
+      var key    = peg$currPos * 205 + 174,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16811,12 +16917,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c387) {
-        s2 = peg$c387;
+      if (input.substr(peg$currPos, 2) === peg$c391) {
+        s2 = peg$c391;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c388); }
+        if (peg$silentFails === 0) { peg$fail(peg$c392); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16853,7 +16959,7 @@ module.exports = (function() {
     function peg$parseOFF() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 175,
+      var key    = peg$currPos * 205 + 175,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16863,12 +16969,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c389) {
-        s2 = peg$c389;
+      if (input.substr(peg$currPos, 3) === peg$c393) {
+        s2 = peg$c393;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c390); }
+        if (peg$silentFails === 0) { peg$fail(peg$c394); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16905,7 +17011,7 @@ module.exports = (function() {
     function peg$parseON() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 176,
+      var key    = peg$currPos * 205 + 176,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16915,12 +17021,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c391) {
-        s2 = peg$c391;
+      if (input.substr(peg$currPos, 2) === peg$c395) {
+        s2 = peg$c395;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c392); }
+        if (peg$silentFails === 0) { peg$fail(peg$c396); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -16957,7 +17063,7 @@ module.exports = (function() {
     function peg$parseOR() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 177,
+      var key    = peg$currPos * 205 + 177,
           cached = peg$cache[key];
 
       if (cached) {
@@ -16967,12 +17073,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c393) {
-        s2 = peg$c393;
+      if (input.substr(peg$currPos, 2) === peg$c397) {
+        s2 = peg$c397;
         peg$currPos += 2;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c394); }
+        if (peg$silentFails === 0) { peg$fail(peg$c398); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17009,7 +17115,7 @@ module.exports = (function() {
     function peg$parseOWN() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 178,
+      var key    = peg$currPos * 205 + 178,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17019,12 +17125,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c395) {
-        s2 = peg$c395;
+      if (input.substr(peg$currPos, 3) === peg$c399) {
+        s2 = peg$c399;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c396); }
+        if (peg$silentFails === 0) { peg$fail(peg$c400); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17061,7 +17167,7 @@ module.exports = (function() {
     function peg$parseRETURN() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 179,
+      var key    = peg$currPos * 205 + 179,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17071,12 +17177,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 6) === peg$c397) {
-        s2 = peg$c397;
+      if (input.substr(peg$currPos, 6) === peg$c401) {
+        s2 = peg$c401;
         peg$currPos += 6;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c398); }
+        if (peg$silentFails === 0) { peg$fail(peg$c402); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17113,7 +17219,7 @@ module.exports = (function() {
     function peg$parseSWITCH() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 180,
+      var key    = peg$currPos * 205 + 180,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17123,12 +17229,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 6) === peg$c399) {
-        s2 = peg$c399;
+      if (input.substr(peg$currPos, 6) === peg$c403) {
+        s2 = peg$c403;
         peg$currPos += 6;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c400); }
+        if (peg$silentFails === 0) { peg$fail(peg$c404); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17165,7 +17271,7 @@ module.exports = (function() {
     function peg$parseTHEN() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 181,
+      var key    = peg$currPos * 205 + 181,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17175,12 +17281,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c401) {
-        s2 = peg$c401;
+      if (input.substr(peg$currPos, 4) === peg$c405) {
+        s2 = peg$c405;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c402); }
+        if (peg$silentFails === 0) { peg$fail(peg$c406); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17217,7 +17323,7 @@ module.exports = (function() {
     function peg$parseTHIS() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 182,
+      var key    = peg$currPos * 205 + 182,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17227,12 +17333,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c403) {
-        s2 = peg$c403;
+      if (input.substr(peg$currPos, 4) === peg$c407) {
+        s2 = peg$c407;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c404); }
+        if (peg$silentFails === 0) { peg$fail(peg$c408); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17269,7 +17375,7 @@ module.exports = (function() {
     function peg$parseTHROW() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 183,
+      var key    = peg$currPos * 205 + 183,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17279,12 +17385,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 5) === peg$c405) {
-        s2 = peg$c405;
+      if (input.substr(peg$currPos, 5) === peg$c409) {
+        s2 = peg$c409;
         peg$currPos += 5;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c406); }
+        if (peg$silentFails === 0) { peg$fail(peg$c410); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17321,7 +17427,7 @@ module.exports = (function() {
     function peg$parseTRUE() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 184,
+      var key    = peg$currPos * 205 + 184,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17331,12 +17437,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c407) {
-        s2 = peg$c407;
+      if (input.substr(peg$currPos, 4) === peg$c411) {
+        s2 = peg$c411;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c408); }
+        if (peg$silentFails === 0) { peg$fail(peg$c412); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17373,7 +17479,7 @@ module.exports = (function() {
     function peg$parseTRY() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 185,
+      var key    = peg$currPos * 205 + 185,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17383,12 +17489,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c409) {
-        s2 = peg$c409;
+      if (input.substr(peg$currPos, 3) === peg$c413) {
+        s2 = peg$c413;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c410); }
+        if (peg$silentFails === 0) { peg$fail(peg$c414); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17425,7 +17531,7 @@ module.exports = (function() {
     function peg$parseTYPEOF() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 186,
+      var key    = peg$currPos * 205 + 186,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17435,12 +17541,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 6) === peg$c411) {
-        s2 = peg$c411;
+      if (input.substr(peg$currPos, 6) === peg$c415) {
+        s2 = peg$c415;
         peg$currPos += 6;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c412); }
+        if (peg$silentFails === 0) { peg$fail(peg$c416); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17477,7 +17583,7 @@ module.exports = (function() {
     function peg$parseUNDEFINED() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 187,
+      var key    = peg$currPos * 205 + 187,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17487,12 +17593,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 9) === peg$c413) {
-        s2 = peg$c413;
+      if (input.substr(peg$currPos, 9) === peg$c417) {
+        s2 = peg$c417;
         peg$currPos += 9;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c414); }
+        if (peg$silentFails === 0) { peg$fail(peg$c418); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17529,7 +17635,7 @@ module.exports = (function() {
     function peg$parseUNLESS() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 188,
+      var key    = peg$currPos * 205 + 188,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17539,12 +17645,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 6) === peg$c415) {
-        s2 = peg$c415;
+      if (input.substr(peg$currPos, 6) === peg$c419) {
+        s2 = peg$c419;
         peg$currPos += 6;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c416); }
+        if (peg$silentFails === 0) { peg$fail(peg$c420); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17581,7 +17687,7 @@ module.exports = (function() {
     function peg$parseUNTIL() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 189,
+      var key    = peg$currPos * 205 + 189,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17591,12 +17697,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 5) === peg$c417) {
-        s2 = peg$c417;
+      if (input.substr(peg$currPos, 5) === peg$c421) {
+        s2 = peg$c421;
         peg$currPos += 5;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c418); }
+        if (peg$silentFails === 0) { peg$fail(peg$c422); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17633,7 +17739,7 @@ module.exports = (function() {
     function peg$parseWHEN() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 190,
+      var key    = peg$currPos * 205 + 190,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17643,12 +17749,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c419) {
-        s2 = peg$c419;
+      if (input.substr(peg$currPos, 4) === peg$c423) {
+        s2 = peg$c423;
         peg$currPos += 4;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c420); }
+        if (peg$silentFails === 0) { peg$fail(peg$c424); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17685,7 +17791,7 @@ module.exports = (function() {
     function peg$parseWHILE() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 191,
+      var key    = peg$currPos * 205 + 191,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17695,12 +17801,12 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 5) === peg$c421) {
-        s2 = peg$c421;
+      if (input.substr(peg$currPos, 5) === peg$c425) {
+        s2 = peg$c425;
         peg$currPos += 5;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c422); }
+        if (peg$silentFails === 0) { peg$fail(peg$c426); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17737,7 +17843,7 @@ module.exports = (function() {
     function peg$parseYES() {
       var s0, s1, s2, s3, s4;
 
-      var key    = peg$currPos * 204 + 192,
+      var key    = peg$currPos * 205 + 192,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17747,12 +17853,64 @@ module.exports = (function() {
 
       s0 = peg$currPos;
       s1 = peg$currPos;
-      if (input.substr(peg$currPos, 3) === peg$c423) {
-        s2 = peg$c423;
+      if (input.substr(peg$currPos, 3) === peg$c427) {
+        s2 = peg$c427;
         peg$currPos += 3;
       } else {
         s2 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c424); }
+        if (peg$silentFails === 0) { peg$fail(peg$c428); }
+      }
+      if (s2 !== peg$FAILED) {
+        s3 = peg$currPos;
+        peg$silentFails++;
+        s4 = peg$parseidentifierPart();
+        peg$silentFails--;
+        if (s4 === peg$FAILED) {
+          s3 = peg$c6;
+        } else {
+          peg$currPos = s3;
+          s3 = peg$c0;
+        }
+        if (s3 !== peg$FAILED) {
+          s2 = [s2, s3];
+          s1 = s2;
+        } else {
+          peg$currPos = s1;
+          s1 = peg$c0;
+        }
+      } else {
+        peg$currPos = s1;
+        s1 = peg$c0;
+      }
+      if (s1 !== peg$FAILED) {
+        s1 = input.substring(s0, peg$currPos);
+      }
+      s0 = s1;
+
+      peg$cache[key] = { nextPos: peg$currPos, result: s0 };
+
+      return s0;
+    }
+
+    function peg$parseSUPER() {
+      var s0, s1, s2, s3, s4;
+
+      var key    = peg$currPos * 205 + 193,
+          cached = peg$cache[key];
+
+      if (cached) {
+        peg$currPos = cached.nextPos;
+        return cached.result;
+      }
+
+      s0 = peg$currPos;
+      s1 = peg$currPos;
+      if (input.substr(peg$currPos, 5) === peg$c429) {
+        s2 = peg$c429;
+        peg$currPos += 5;
+      } else {
+        s2 = peg$FAILED;
+        if (peg$silentFails === 0) { peg$fail(peg$c430); }
       }
       if (s2 !== peg$FAILED) {
         s3 = peg$currPos;
@@ -17789,7 +17947,7 @@ module.exports = (function() {
     function peg$parseSharedKeywords() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 193,
+      var key    = peg$currPos * 205 + 194,
           cached = peg$cache[key];
 
       if (cached) {
@@ -17798,212 +17956,212 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c407) {
-        s1 = peg$c407;
+      if (input.substr(peg$currPos, 4) === peg$c411) {
+        s1 = peg$c411;
         peg$currPos += 4;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c408); }
+        if (peg$silentFails === 0) { peg$fail(peg$c412); }
       }
       if (s1 === peg$FAILED) {
-        if (input.substr(peg$currPos, 5) === peg$c361) {
-          s1 = peg$c361;
+        if (input.substr(peg$currPos, 5) === peg$c365) {
+          s1 = peg$c365;
           peg$currPos += 5;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c362); }
+          if (peg$silentFails === 0) { peg$fail(peg$c366); }
         }
         if (s1 === peg$FAILED) {
-          if (input.substr(peg$currPos, 4) === peg$c385) {
-            s1 = peg$c385;
+          if (input.substr(peg$currPos, 4) === peg$c389) {
+            s1 = peg$c389;
             peg$currPos += 4;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c386); }
+            if (peg$silentFails === 0) { peg$fail(peg$c390); }
           }
           if (s1 === peg$FAILED) {
-            if (input.substr(peg$currPos, 4) === peg$c403) {
-              s1 = peg$c403;
+            if (input.substr(peg$currPos, 4) === peg$c407) {
+              s1 = peg$c407;
               peg$currPos += 4;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c404); }
+              if (peg$silentFails === 0) { peg$fail(peg$c408); }
             }
             if (s1 === peg$FAILED) {
-              if (input.substr(peg$currPos, 3) === peg$c379) {
-                s1 = peg$c379;
+              if (input.substr(peg$currPos, 3) === peg$c383) {
+                s1 = peg$c383;
                 peg$currPos += 3;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c380); }
+                if (peg$silentFails === 0) { peg$fail(peg$c384); }
               }
               if (s1 === peg$FAILED) {
-                if (input.substr(peg$currPos, 6) === peg$c351) {
-                  s1 = peg$c351;
+                if (input.substr(peg$currPos, 6) === peg$c355) {
+                  s1 = peg$c355;
                   peg$currPos += 6;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c352); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c356); }
                 }
                 if (s1 === peg$FAILED) {
-                  if (input.substr(peg$currPos, 6) === peg$c411) {
-                    s1 = peg$c411;
+                  if (input.substr(peg$currPos, 6) === peg$c415) {
+                    s1 = peg$c415;
                     peg$currPos += 6;
                   } else {
                     s1 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c412); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c416); }
                   }
                   if (s1 === peg$FAILED) {
-                    if (input.substr(peg$currPos, 10) === peg$c371) {
-                      s1 = peg$c371;
+                    if (input.substr(peg$currPos, 10) === peg$c375) {
+                      s1 = peg$c375;
                       peg$currPos += 10;
                     } else {
                       s1 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c372); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c376); }
                     }
                     if (s1 === peg$FAILED) {
-                      if (input.substr(peg$currPos, 2) === peg$c369) {
-                        s1 = peg$c369;
+                      if (input.substr(peg$currPos, 2) === peg$c373) {
+                        s1 = peg$c373;
                         peg$currPos += 2;
                       } else {
                         s1 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c370); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c374); }
                       }
                       if (s1 === peg$FAILED) {
-                        if (input.substr(peg$currPos, 6) === peg$c397) {
-                          s1 = peg$c397;
+                        if (input.substr(peg$currPos, 6) === peg$c401) {
+                          s1 = peg$c401;
                           peg$currPos += 6;
                         } else {
                           s1 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c398); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c402); }
                         }
                         if (s1 === peg$FAILED) {
-                          if (input.substr(peg$currPos, 5) === peg$c405) {
-                            s1 = peg$c405;
+                          if (input.substr(peg$currPos, 5) === peg$c409) {
+                            s1 = peg$c409;
                             peg$currPos += 5;
                           } else {
                             s1 = peg$FAILED;
-                            if (peg$silentFails === 0) { peg$fail(peg$c406); }
+                            if (peg$silentFails === 0) { peg$fail(peg$c410); }
                           }
                           if (s1 === peg$FAILED) {
-                            if (input.substr(peg$currPos, 5) === peg$c341) {
-                              s1 = peg$c341;
+                            if (input.substr(peg$currPos, 5) === peg$c345) {
+                              s1 = peg$c345;
                               peg$currPos += 5;
                             } else {
                               s1 = peg$FAILED;
-                              if (peg$silentFails === 0) { peg$fail(peg$c342); }
+                              if (peg$silentFails === 0) { peg$fail(peg$c346); }
                             }
                             if (s1 === peg$FAILED) {
-                              if (input.substr(peg$currPos, 8) === peg$c347) {
-                                s1 = peg$c347;
+                              if (input.substr(peg$currPos, 8) === peg$c351) {
+                                s1 = peg$c351;
                                 peg$currPos += 8;
                               } else {
                                 s1 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c348); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c352); }
                               }
                               if (s1 === peg$FAILED) {
-                                if (input.substr(peg$currPos, 8) === peg$c353) {
-                                  s1 = peg$c353;
+                                if (input.substr(peg$currPos, 8) === peg$c357) {
+                                  s1 = peg$c357;
                                   peg$currPos += 8;
                                 } else {
                                   s1 = peg$FAILED;
-                                  if (peg$silentFails === 0) { peg$fail(peg$c354); }
+                                  if (peg$silentFails === 0) { peg$fail(peg$c358); }
                                 }
                                 if (s1 === peg$FAILED) {
-                                  if (input.substr(peg$currPos, 2) === peg$c367) {
-                                    s1 = peg$c367;
+                                  if (input.substr(peg$currPos, 2) === peg$c371) {
+                                    s1 = peg$c371;
                                     peg$currPos += 2;
                                   } else {
                                     s1 = peg$FAILED;
-                                    if (peg$silentFails === 0) { peg$fail(peg$c368); }
+                                    if (peg$silentFails === 0) { peg$fail(peg$c372); }
                                   }
                                   if (s1 === peg$FAILED) {
-                                    if (input.substr(peg$currPos, 4) === peg$c357) {
-                                      s1 = peg$c357;
+                                    if (input.substr(peg$currPos, 4) === peg$c361) {
+                                      s1 = peg$c361;
                                       peg$currPos += 4;
                                     } else {
                                       s1 = peg$FAILED;
-                                      if (peg$silentFails === 0) { peg$fail(peg$c358); }
+                                      if (peg$silentFails === 0) { peg$fail(peg$c362); }
                                     }
                                     if (s1 === peg$FAILED) {
-                                      if (input.substr(peg$currPos, 6) === peg$c399) {
-                                        s1 = peg$c399;
+                                      if (input.substr(peg$currPos, 6) === peg$c403) {
+                                        s1 = peg$c403;
                                         peg$currPos += 6;
                                       } else {
                                         s1 = peg$FAILED;
-                                        if (peg$silentFails === 0) { peg$fail(peg$c400); }
+                                        if (peg$silentFails === 0) { peg$fail(peg$c404); }
                                       }
                                       if (s1 === peg$FAILED) {
-                                        if (input.substr(peg$currPos, 3) === peg$c365) {
-                                          s1 = peg$c365;
+                                        if (input.substr(peg$currPos, 3) === peg$c369) {
+                                          s1 = peg$c369;
                                           peg$currPos += 3;
                                         } else {
                                           s1 = peg$FAILED;
-                                          if (peg$silentFails === 0) { peg$fail(peg$c366); }
+                                          if (peg$silentFails === 0) { peg$fail(peg$c370); }
                                         }
                                         if (s1 === peg$FAILED) {
-                                          if (input.substr(peg$currPos, 5) === peg$c421) {
-                                            s1 = peg$c421;
+                                          if (input.substr(peg$currPos, 5) === peg$c425) {
+                                            s1 = peg$c425;
                                             peg$currPos += 5;
                                           } else {
                                             s1 = peg$FAILED;
-                                            if (peg$silentFails === 0) { peg$fail(peg$c422); }
+                                            if (peg$silentFails === 0) { peg$fail(peg$c426); }
                                           }
                                           if (s1 === peg$FAILED) {
-                                            if (input.substr(peg$currPos, 2) === peg$c355) {
-                                              s1 = peg$c355;
+                                            if (input.substr(peg$currPos, 2) === peg$c359) {
+                                              s1 = peg$c359;
                                               peg$currPos += 2;
                                             } else {
                                               s1 = peg$FAILED;
-                                              if (peg$silentFails === 0) { peg$fail(peg$c356); }
+                                              if (peg$silentFails === 0) { peg$fail(peg$c360); }
                                             }
                                             if (s1 === peg$FAILED) {
-                                              if (input.substr(peg$currPos, 3) === peg$c409) {
-                                                s1 = peg$c409;
+                                              if (input.substr(peg$currPos, 3) === peg$c413) {
+                                                s1 = peg$c413;
                                                 peg$currPos += 3;
                                               } else {
                                                 s1 = peg$FAILED;
-                                                if (peg$silentFails === 0) { peg$fail(peg$c410); }
+                                                if (peg$silentFails === 0) { peg$fail(peg$c414); }
                                               }
                                               if (s1 === peg$FAILED) {
-                                                if (input.substr(peg$currPos, 5) === peg$c345) {
-                                                  s1 = peg$c345;
+                                                if (input.substr(peg$currPos, 5) === peg$c349) {
+                                                  s1 = peg$c349;
                                                   peg$currPos += 5;
                                                 } else {
                                                   s1 = peg$FAILED;
-                                                  if (peg$silentFails === 0) { peg$fail(peg$c346); }
+                                                  if (peg$silentFails === 0) { peg$fail(peg$c350); }
                                                 }
                                                 if (s1 === peg$FAILED) {
-                                                  if (input.substr(peg$currPos, 7) === peg$c363) {
-                                                    s1 = peg$c363;
+                                                  if (input.substr(peg$currPos, 7) === peg$c367) {
+                                                    s1 = peg$c367;
                                                     peg$currPos += 7;
                                                   } else {
                                                     s1 = peg$FAILED;
-                                                    if (peg$silentFails === 0) { peg$fail(peg$c364); }
+                                                    if (peg$silentFails === 0) { peg$fail(peg$c368); }
                                                   }
                                                   if (s1 === peg$FAILED) {
-                                                    if (input.substr(peg$currPos, 5) === peg$c349) {
-                                                      s1 = peg$c349;
+                                                    if (input.substr(peg$currPos, 5) === peg$c353) {
+                                                      s1 = peg$c353;
                                                       peg$currPos += 5;
                                                     } else {
                                                       s1 = peg$FAILED;
-                                                      if (peg$silentFails === 0) { peg$fail(peg$c350); }
+                                                      if (peg$silentFails === 0) { peg$fail(peg$c354); }
                                                     }
                                                     if (s1 === peg$FAILED) {
-                                                      if (input.substr(peg$currPos, 7) === peg$c359) {
-                                                        s1 = peg$c359;
+                                                      if (input.substr(peg$currPos, 7) === peg$c363) {
+                                                        s1 = peg$c363;
                                                         peg$currPos += 7;
                                                       } else {
                                                         s1 = peg$FAILED;
-                                                        if (peg$silentFails === 0) { peg$fail(peg$c360); }
+                                                        if (peg$silentFails === 0) { peg$fail(peg$c364); }
                                                       }
                                                       if (s1 === peg$FAILED) {
-                                                        if (input.substr(peg$currPos, 5) === peg$c425) {
-                                                          s1 = peg$c425;
+                                                        if (input.substr(peg$currPos, 5) === peg$c429) {
+                                                          s1 = peg$c429;
                                                           peg$currPos += 5;
                                                         } else {
                                                           s1 = peg$FAILED;
-                                                          if (peg$silentFails === 0) { peg$fail(peg$c426); }
+                                                          if (peg$silentFails === 0) { peg$fail(peg$c430); }
                                                         }
                                                       }
                                                     }
@@ -18061,7 +18219,7 @@ module.exports = (function() {
     function peg$parseJSKeywords() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 194,
+      var key    = peg$currPos * 205 + 195,
           cached = peg$cache[key];
 
       if (cached) {
@@ -18070,164 +18228,164 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 4) === peg$c427) {
-        s1 = peg$c427;
+      if (input.substr(peg$currPos, 4) === peg$c431) {
+        s1 = peg$c431;
         peg$currPos += 4;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c428); }
+        if (peg$silentFails === 0) { peg$fail(peg$c432); }
       }
       if (s1 === peg$FAILED) {
-        if (input.substr(peg$currPos, 7) === peg$c429) {
-          s1 = peg$c429;
+        if (input.substr(peg$currPos, 7) === peg$c433) {
+          s1 = peg$c433;
           peg$currPos += 7;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c430); }
+          if (peg$silentFails === 0) { peg$fail(peg$c434); }
         }
         if (s1 === peg$FAILED) {
-          if (input.substr(peg$currPos, 8) === peg$c431) {
-            s1 = peg$c431;
+          if (input.substr(peg$currPos, 8) === peg$c435) {
+            s1 = peg$c435;
             peg$currPos += 8;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c432); }
+            if (peg$silentFails === 0) { peg$fail(peg$c436); }
           }
           if (s1 === peg$FAILED) {
-            if (input.substr(peg$currPos, 3) === peg$c433) {
-              s1 = peg$c433;
+            if (input.substr(peg$currPos, 3) === peg$c437) {
+              s1 = peg$c437;
               peg$currPos += 3;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c434); }
+              if (peg$silentFails === 0) { peg$fail(peg$c438); }
             }
             if (s1 === peg$FAILED) {
-              if (input.substr(peg$currPos, 4) === peg$c435) {
-                s1 = peg$c435;
+              if (input.substr(peg$currPos, 4) === peg$c439) {
+                s1 = peg$c439;
                 peg$currPos += 4;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c436); }
+                if (peg$silentFails === 0) { peg$fail(peg$c440); }
               }
               if (s1 === peg$FAILED) {
-                if (input.substr(peg$currPos, 4) === peg$c437) {
-                  s1 = peg$c437;
+                if (input.substr(peg$currPos, 4) === peg$c441) {
+                  s1 = peg$c441;
                   peg$currPos += 4;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c438); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c442); }
                 }
                 if (s1 === peg$FAILED) {
-                  if (input.substr(peg$currPos, 5) === peg$c439) {
-                    s1 = peg$c439;
+                  if (input.substr(peg$currPos, 5) === peg$c443) {
+                    s1 = peg$c443;
                     peg$currPos += 5;
                   } else {
                     s1 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c440); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c444); }
                   }
                   if (s1 === peg$FAILED) {
-                    if (input.substr(peg$currPos, 3) === peg$c441) {
-                      s1 = peg$c441;
+                    if (input.substr(peg$currPos, 3) === peg$c445) {
+                      s1 = peg$c445;
                       peg$currPos += 3;
                     } else {
                       s1 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c442); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c446); }
                     }
                     if (s1 === peg$FAILED) {
-                      if (input.substr(peg$currPos, 4) === peg$c443) {
-                        s1 = peg$c443;
+                      if (input.substr(peg$currPos, 4) === peg$c447) {
+                        s1 = peg$c447;
                         peg$currPos += 4;
                       } else {
                         s1 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c444); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c448); }
                       }
                       if (s1 === peg$FAILED) {
-                        if (input.substr(peg$currPos, 6) === peg$c445) {
-                          s1 = peg$c445;
+                        if (input.substr(peg$currPos, 6) === peg$c449) {
+                          s1 = peg$c449;
                           peg$currPos += 6;
                         } else {
                           s1 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c446); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c450); }
                         }
                         if (s1 === peg$FAILED) {
-                          if (input.substr(peg$currPos, 6) === peg$c447) {
-                            s1 = peg$c447;
+                          if (input.substr(peg$currPos, 6) === peg$c451) {
+                            s1 = peg$c451;
                             peg$currPos += 6;
                           } else {
                             s1 = peg$FAILED;
-                            if (peg$silentFails === 0) { peg$fail(peg$c448); }
+                            if (peg$silentFails === 0) { peg$fail(peg$c452); }
                           }
                           if (s1 === peg$FAILED) {
-                            if (input.substr(peg$currPos, 6) === peg$c449) {
-                              s1 = peg$c449;
+                            if (input.substr(peg$currPos, 6) === peg$c453) {
+                              s1 = peg$c453;
                               peg$currPos += 6;
                             } else {
                               s1 = peg$FAILED;
-                              if (peg$silentFails === 0) { peg$fail(peg$c450); }
+                              if (peg$silentFails === 0) { peg$fail(peg$c454); }
                             }
                             if (s1 === peg$FAILED) {
-                              if (input.substr(peg$currPos, 10) === peg$c451) {
-                                s1 = peg$c451;
+                              if (input.substr(peg$currPos, 10) === peg$c455) {
+                                s1 = peg$c455;
                                 peg$currPos += 10;
                               } else {
                                 s1 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c452); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c456); }
                               }
                               if (s1 === peg$FAILED) {
-                                if (input.substr(peg$currPos, 9) === peg$c453) {
-                                  s1 = peg$c453;
+                                if (input.substr(peg$currPos, 9) === peg$c457) {
+                                  s1 = peg$c457;
                                   peg$currPos += 9;
                                 } else {
                                   s1 = peg$FAILED;
-                                  if (peg$silentFails === 0) { peg$fail(peg$c454); }
+                                  if (peg$silentFails === 0) { peg$fail(peg$c458); }
                                 }
                                 if (s1 === peg$FAILED) {
-                                  if (input.substr(peg$currPos, 7) === peg$c455) {
-                                    s1 = peg$c455;
+                                  if (input.substr(peg$currPos, 7) === peg$c459) {
+                                    s1 = peg$c459;
                                     peg$currPos += 7;
                                   } else {
                                     s1 = peg$FAILED;
-                                    if (peg$silentFails === 0) { peg$fail(peg$c456); }
+                                    if (peg$silentFails === 0) { peg$fail(peg$c460); }
                                   }
                                   if (s1 === peg$FAILED) {
-                                    if (input.substr(peg$currPos, 7) === peg$c457) {
-                                      s1 = peg$c457;
+                                    if (input.substr(peg$currPos, 7) === peg$c461) {
+                                      s1 = peg$c461;
                                       peg$currPos += 7;
                                     } else {
                                       s1 = peg$FAILED;
-                                      if (peg$silentFails === 0) { peg$fail(peg$c458); }
+                                      if (peg$silentFails === 0) { peg$fail(peg$c462); }
                                     }
                                     if (s1 === peg$FAILED) {
-                                      if (input.substr(peg$currPos, 9) === peg$c459) {
-                                        s1 = peg$c459;
+                                      if (input.substr(peg$currPos, 9) === peg$c463) {
+                                        s1 = peg$c463;
                                         peg$currPos += 9;
                                       } else {
                                         s1 = peg$FAILED;
-                                        if (peg$silentFails === 0) { peg$fail(peg$c460); }
+                                        if (peg$silentFails === 0) { peg$fail(peg$c464); }
                                       }
                                       if (s1 === peg$FAILED) {
-                                        if (input.substr(peg$currPos, 6) === peg$c461) {
-                                          s1 = peg$c461;
+                                        if (input.substr(peg$currPos, 6) === peg$c465) {
+                                          s1 = peg$c465;
                                           peg$currPos += 6;
                                         } else {
                                           s1 = peg$FAILED;
-                                          if (peg$silentFails === 0) { peg$fail(peg$c462); }
+                                          if (peg$silentFails === 0) { peg$fail(peg$c466); }
                                         }
                                         if (s1 === peg$FAILED) {
-                                          if (input.substr(peg$currPos, 6) === peg$c463) {
-                                            s1 = peg$c463;
+                                          if (input.substr(peg$currPos, 6) === peg$c467) {
+                                            s1 = peg$c467;
                                             peg$currPos += 6;
                                           } else {
                                             s1 = peg$FAILED;
-                                            if (peg$silentFails === 0) { peg$fail(peg$c464); }
+                                            if (peg$silentFails === 0) { peg$fail(peg$c468); }
                                           }
                                           if (s1 === peg$FAILED) {
-                                            if (input.substr(peg$currPos, 5) === peg$c465) {
-                                              s1 = peg$c465;
+                                            if (input.substr(peg$currPos, 5) === peg$c469) {
+                                              s1 = peg$c469;
                                               peg$currPos += 5;
                                             } else {
                                               s1 = peg$FAILED;
-                                              if (peg$silentFails === 0) { peg$fail(peg$c466); }
+                                              if (peg$silentFails === 0) { peg$fail(peg$c470); }
                                             }
                                           }
                                         }
@@ -18279,7 +18437,7 @@ module.exports = (function() {
     function peg$parseCSKeywords() {
       var s0, s1, s2, s3;
 
-      var key    = peg$currPos * 204 + 195,
+      var key    = peg$currPos * 205 + 196,
           cached = peg$cache[key];
 
       if (cached) {
@@ -18288,140 +18446,140 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 9) === peg$c413) {
-        s1 = peg$c413;
+      if (input.substr(peg$currPos, 9) === peg$c417) {
+        s1 = peg$c417;
         peg$currPos += 9;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c414); }
+        if (peg$silentFails === 0) { peg$fail(peg$c418); }
       }
       if (s1 === peg$FAILED) {
-        if (input.substr(peg$currPos, 4) === peg$c401) {
-          s1 = peg$c401;
+        if (input.substr(peg$currPos, 4) === peg$c405) {
+          s1 = peg$c405;
           peg$currPos += 4;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c402); }
+          if (peg$silentFails === 0) { peg$fail(peg$c406); }
         }
         if (s1 === peg$FAILED) {
-          if (input.substr(peg$currPos, 6) === peg$c415) {
-            s1 = peg$c415;
+          if (input.substr(peg$currPos, 6) === peg$c419) {
+            s1 = peg$c419;
             peg$currPos += 6;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c416); }
+            if (peg$silentFails === 0) { peg$fail(peg$c420); }
           }
           if (s1 === peg$FAILED) {
-            if (input.substr(peg$currPos, 5) === peg$c417) {
-              s1 = peg$c417;
+            if (input.substr(peg$currPos, 5) === peg$c421) {
+              s1 = peg$c421;
               peg$currPos += 5;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c418); }
+              if (peg$silentFails === 0) { peg$fail(peg$c422); }
             }
             if (s1 === peg$FAILED) {
-              if (input.substr(peg$currPos, 4) === peg$c377) {
-                s1 = peg$c377;
+              if (input.substr(peg$currPos, 4) === peg$c381) {
+                s1 = peg$c381;
                 peg$currPos += 4;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c378); }
+                if (peg$silentFails === 0) { peg$fail(peg$c382); }
               }
               if (s1 === peg$FAILED) {
-                if (input.substr(peg$currPos, 3) === peg$c389) {
-                  s1 = peg$c389;
+                if (input.substr(peg$currPos, 3) === peg$c393) {
+                  s1 = peg$c393;
                   peg$currPos += 3;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c390); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c394); }
                 }
                 if (s1 === peg$FAILED) {
-                  if (input.substr(peg$currPos, 2) === peg$c343) {
-                    s1 = peg$c343;
+                  if (input.substr(peg$currPos, 2) === peg$c347) {
+                    s1 = peg$c347;
                     peg$currPos += 2;
                   } else {
                     s1 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c344); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c348); }
                   }
                   if (s1 === peg$FAILED) {
-                    if (input.substr(peg$currPos, 4) === peg$c419) {
-                      s1 = peg$c419;
+                    if (input.substr(peg$currPos, 4) === peg$c423) {
+                      s1 = peg$c423;
                       peg$currPos += 4;
                     } else {
                       s1 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c420); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c424); }
                     }
                     if (s1 === peg$FAILED) {
-                      if (input.substr(peg$currPos, 3) === peg$c339) {
-                        s1 = peg$c339;
+                      if (input.substr(peg$currPos, 3) === peg$c343) {
+                        s1 = peg$c343;
                         peg$currPos += 3;
                       } else {
                         s1 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c340); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c344); }
                       }
                       if (s1 === peg$FAILED) {
-                        if (input.substr(peg$currPos, 2) === peg$c393) {
-                          s1 = peg$c393;
+                        if (input.substr(peg$currPos, 2) === peg$c397) {
+                          s1 = peg$c397;
                           peg$currPos += 2;
                         } else {
                           s1 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c394); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c398); }
                         }
                         if (s1 === peg$FAILED) {
-                          if (input.substr(peg$currPos, 4) === peg$c375) {
-                            s1 = peg$c375;
+                          if (input.substr(peg$currPos, 4) === peg$c379) {
+                            s1 = peg$c379;
                             peg$currPos += 4;
                           } else {
                             s1 = peg$FAILED;
-                            if (peg$silentFails === 0) { peg$fail(peg$c376); }
+                            if (peg$silentFails === 0) { peg$fail(peg$c380); }
                           }
                           if (s1 === peg$FAILED) {
-                            if (input.substr(peg$currPos, 2) === peg$c373) {
-                              s1 = peg$c373;
+                            if (input.substr(peg$currPos, 2) === peg$c377) {
+                              s1 = peg$c377;
                               peg$currPos += 2;
                             } else {
                               s1 = peg$FAILED;
-                              if (peg$silentFails === 0) { peg$fail(peg$c374); }
+                              if (peg$silentFails === 0) { peg$fail(peg$c378); }
                             }
                             if (s1 === peg$FAILED) {
-                              if (input.substr(peg$currPos, 3) === peg$c383) {
-                                s1 = peg$c383;
+                              if (input.substr(peg$currPos, 3) === peg$c387) {
+                                s1 = peg$c387;
                                 peg$currPos += 3;
                               } else {
                                 s1 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c384); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c388); }
                               }
                               if (s1 === peg$FAILED) {
-                                if (input.substr(peg$currPos, 3) === peg$c423) {
-                                  s1 = peg$c423;
+                                if (input.substr(peg$currPos, 3) === peg$c427) {
+                                  s1 = peg$c427;
                                   peg$currPos += 3;
                                 } else {
                                   s1 = peg$FAILED;
-                                  if (peg$silentFails === 0) { peg$fail(peg$c424); }
+                                  if (peg$silentFails === 0) { peg$fail(peg$c428); }
                                 }
                                 if (s1 === peg$FAILED) {
-                                  if (input.substr(peg$currPos, 2) === peg$c381) {
-                                    s1 = peg$c381;
+                                  if (input.substr(peg$currPos, 2) === peg$c385) {
+                                    s1 = peg$c385;
                                     peg$currPos += 2;
                                   } else {
                                     s1 = peg$FAILED;
-                                    if (peg$silentFails === 0) { peg$fail(peg$c382); }
+                                    if (peg$silentFails === 0) { peg$fail(peg$c386); }
                                   }
                                   if (s1 === peg$FAILED) {
-                                    if (input.substr(peg$currPos, 2) === peg$c391) {
-                                      s1 = peg$c391;
+                                    if (input.substr(peg$currPos, 2) === peg$c395) {
+                                      s1 = peg$c395;
                                       peg$currPos += 2;
                                     } else {
                                       s1 = peg$FAILED;
-                                      if (peg$silentFails === 0) { peg$fail(peg$c392); }
+                                      if (peg$silentFails === 0) { peg$fail(peg$c396); }
                                     }
                                     if (s1 === peg$FAILED) {
-                                      if (input.substr(peg$currPos, 2) === peg$c387) {
-                                        s1 = peg$c387;
+                                      if (input.substr(peg$currPos, 2) === peg$c391) {
+                                        s1 = peg$c391;
                                         peg$currPos += 2;
                                       } else {
                                         s1 = peg$FAILED;
-                                        if (peg$silentFails === 0) { peg$fail(peg$c388); }
+                                        if (peg$silentFails === 0) { peg$fail(peg$c392); }
                                       }
                                     }
                                   }
@@ -18470,7 +18628,7 @@ module.exports = (function() {
     function peg$parsereserved() {
       var s0, s1;
 
-      var key    = peg$currPos * 204 + 196,
+      var key    = peg$currPos * 205 + 197,
           cached = peg$cache[key];
 
       if (cached) {
@@ -18502,7 +18660,7 @@ module.exports = (function() {
     function peg$parseUnicodeEscapeSequence() {
       var s0, s1, s2, s3, s4, s5;
 
-      var key    = peg$currPos * 204 + 197,
+      var key    = peg$currPos * 205 + 198,
           cached = peg$cache[key];
 
       if (cached) {
@@ -18511,12 +18669,12 @@ module.exports = (function() {
       }
 
       s0 = peg$currPos;
-      if (input.substr(peg$currPos, 2) === peg$c467) {
-        s1 = peg$c467;
+      if (input.substr(peg$currPos, 2) === peg$c471) {
+        s1 = peg$c471;
         peg$currPos += 2;
       } else {
         s1 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c468); }
+        if (peg$silentFails === 0) { peg$fail(peg$c472); }
       }
       if (s1 !== peg$FAILED) {
         s2 = peg$parsehexDigit();
@@ -18528,7 +18686,7 @@ module.exports = (function() {
               s5 = peg$parsehexDigit();
               if (s5 !== peg$FAILED) {
                 peg$reportedPos = s0;
-                s1 = peg$c469(s2, s3, s4, s5);
+                s1 = peg$c473(s2, s3, s4, s5);
                 s0 = s1;
               } else {
                 peg$currPos = s0;
@@ -18559,7 +18717,7 @@ module.exports = (function() {
     function peg$parseUnicodeLetter() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 198,
+      var key    = peg$currPos * 205 + 199,
           cached = peg$cache[key];
 
       if (cached) {
@@ -18567,29 +18725,29 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c470.test(input.charAt(peg$currPos))) {
+      if (peg$c474.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c471); }
+        if (peg$silentFails === 0) { peg$fail(peg$c475); }
       }
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 55340) {
-          s1 = peg$c472;
+          s1 = peg$c476;
           peg$currPos++;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c473); }
+          if (peg$silentFails === 0) { peg$fail(peg$c477); }
         }
         if (s1 !== peg$FAILED) {
-          if (peg$c474.test(input.charAt(peg$currPos))) {
+          if (peg$c478.test(input.charAt(peg$currPos))) {
             s2 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c475); }
+            if (peg$silentFails === 0) { peg$fail(peg$c479); }
           }
           if (s2 !== peg$FAILED) {
             s1 = [s1, s2];
@@ -18605,19 +18763,19 @@ module.exports = (function() {
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
           if (input.charCodeAt(peg$currPos) === 55304) {
-            s1 = peg$c476;
+            s1 = peg$c480;
             peg$currPos++;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c477); }
+            if (peg$silentFails === 0) { peg$fail(peg$c481); }
           }
           if (s1 !== peg$FAILED) {
-            if (peg$c478.test(input.charAt(peg$currPos))) {
+            if (peg$c482.test(input.charAt(peg$currPos))) {
               s2 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s2 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c479); }
+              if (peg$silentFails === 0) { peg$fail(peg$c483); }
             }
             if (s2 !== peg$FAILED) {
               s1 = [s1, s2];
@@ -18633,19 +18791,19 @@ module.exports = (function() {
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 55401) {
-              s1 = peg$c480;
+              s1 = peg$c484;
               peg$currPos++;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c481); }
+              if (peg$silentFails === 0) { peg$fail(peg$c485); }
             }
             if (s1 !== peg$FAILED) {
-              if (peg$c482.test(input.charAt(peg$currPos))) {
+              if (peg$c486.test(input.charAt(peg$currPos))) {
                 s2 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s2 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c483); }
+                if (peg$silentFails === 0) { peg$fail(peg$c487); }
               }
               if (s2 !== peg$FAILED) {
                 s1 = [s1, s2];
@@ -18661,19 +18819,19 @@ module.exports = (function() {
             if (s0 === peg$FAILED) {
               s0 = peg$currPos;
               if (input.charCodeAt(peg$currPos) === 55305) {
-                s1 = peg$c484;
+                s1 = peg$c488;
                 peg$currPos++;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c485); }
+                if (peg$silentFails === 0) { peg$fail(peg$c489); }
               }
               if (s1 !== peg$FAILED) {
-                if (peg$c486.test(input.charAt(peg$currPos))) {
+                if (peg$c490.test(input.charAt(peg$currPos))) {
                   s2 = input.charAt(peg$currPos);
                   peg$currPos++;
                 } else {
                   s2 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c487); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c491); }
                 }
                 if (s2 !== peg$FAILED) {
                   s1 = [s1, s2];
@@ -18689,19 +18847,19 @@ module.exports = (function() {
               if (s0 === peg$FAILED) {
                 s0 = peg$currPos;
                 if (input.charCodeAt(peg$currPos) === 55349) {
-                  s1 = peg$c488;
+                  s1 = peg$c492;
                   peg$currPos++;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c489); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c493); }
                 }
                 if (s1 !== peg$FAILED) {
-                  if (peg$c490.test(input.charAt(peg$currPos))) {
+                  if (peg$c494.test(input.charAt(peg$currPos))) {
                     s2 = input.charAt(peg$currPos);
                     peg$currPos++;
                   } else {
                     s2 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c491); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c495); }
                   }
                   if (s2 !== peg$FAILED) {
                     s1 = [s1, s2];
@@ -18717,19 +18875,19 @@ module.exports = (function() {
                 if (s0 === peg$FAILED) {
                   s0 = peg$currPos;
                   if (input.charCodeAt(peg$currPos) === 55300) {
-                    s1 = peg$c492;
+                    s1 = peg$c496;
                     peg$currPos++;
                   } else {
                     s1 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c493); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c497); }
                   }
                   if (s1 !== peg$FAILED) {
-                    if (peg$c494.test(input.charAt(peg$currPos))) {
+                    if (peg$c498.test(input.charAt(peg$currPos))) {
                       s2 = input.charAt(peg$currPos);
                       peg$currPos++;
                     } else {
                       s2 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c495); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c499); }
                     }
                     if (s2 !== peg$FAILED) {
                       s1 = [s1, s2];
@@ -18745,19 +18903,19 @@ module.exports = (function() {
                   if (s0 === peg$FAILED) {
                     s0 = peg$currPos;
                     if (input.charCodeAt(peg$currPos) === 55296) {
-                      s1 = peg$c496;
+                      s1 = peg$c500;
                       peg$currPos++;
                     } else {
                       s1 = peg$FAILED;
-                      if (peg$silentFails === 0) { peg$fail(peg$c497); }
+                      if (peg$silentFails === 0) { peg$fail(peg$c501); }
                     }
                     if (s1 !== peg$FAILED) {
-                      if (peg$c498.test(input.charAt(peg$currPos))) {
+                      if (peg$c502.test(input.charAt(peg$currPos))) {
                         s2 = input.charAt(peg$currPos);
                         peg$currPos++;
                       } else {
                         s2 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c499); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c503); }
                       }
                       if (s2 !== peg$FAILED) {
                         s1 = [s1, s2];
@@ -18773,19 +18931,19 @@ module.exports = (function() {
                     if (s0 === peg$FAILED) {
                       s0 = peg$currPos;
                       if (input.charCodeAt(peg$currPos) === 55308) {
-                        s1 = peg$c500;
+                        s1 = peg$c504;
                         peg$currPos++;
                       } else {
                         s1 = peg$FAILED;
-                        if (peg$silentFails === 0) { peg$fail(peg$c501); }
+                        if (peg$silentFails === 0) { peg$fail(peg$c505); }
                       }
                       if (s1 !== peg$FAILED) {
-                        if (peg$c502.test(input.charAt(peg$currPos))) {
+                        if (peg$c506.test(input.charAt(peg$currPos))) {
                           s2 = input.charAt(peg$currPos);
                           peg$currPos++;
                         } else {
                           s2 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c503); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c507); }
                         }
                         if (s2 !== peg$FAILED) {
                           s1 = [s1, s2];
@@ -18801,19 +18959,19 @@ module.exports = (function() {
                       if (s0 === peg$FAILED) {
                         s0 = peg$currPos;
                         if (input.charCodeAt(peg$currPos) === 55297) {
-                          s1 = peg$c504;
+                          s1 = peg$c508;
                           peg$currPos++;
                         } else {
                           s1 = peg$FAILED;
-                          if (peg$silentFails === 0) { peg$fail(peg$c505); }
+                          if (peg$silentFails === 0) { peg$fail(peg$c509); }
                         }
                         if (s1 !== peg$FAILED) {
-                          if (peg$c506.test(input.charAt(peg$currPos))) {
+                          if (peg$c510.test(input.charAt(peg$currPos))) {
                             s2 = input.charAt(peg$currPos);
                             peg$currPos++;
                           } else {
                             s2 = peg$FAILED;
-                            if (peg$silentFails === 0) { peg$fail(peg$c507); }
+                            if (peg$silentFails === 0) { peg$fail(peg$c511); }
                           }
                           if (s2 !== peg$FAILED) {
                             s1 = [s1, s2];
@@ -18829,19 +18987,19 @@ module.exports = (function() {
                         if (s0 === peg$FAILED) {
                           s0 = peg$currPos;
                           if (input.charCodeAt(peg$currPos) === 55406) {
-                            s1 = peg$c508;
+                            s1 = peg$c512;
                             peg$currPos++;
                           } else {
                             s1 = peg$FAILED;
-                            if (peg$silentFails === 0) { peg$fail(peg$c509); }
+                            if (peg$silentFails === 0) { peg$fail(peg$c513); }
                           }
                           if (s1 !== peg$FAILED) {
-                            if (peg$c510.test(input.charAt(peg$currPos))) {
+                            if (peg$c514.test(input.charAt(peg$currPos))) {
                               s2 = input.charAt(peg$currPos);
                               peg$currPos++;
                             } else {
                               s2 = peg$FAILED;
-                              if (peg$silentFails === 0) { peg$fail(peg$c511); }
+                              if (peg$silentFails === 0) { peg$fail(peg$c515); }
                             }
                             if (s2 !== peg$FAILED) {
                               s1 = [s1, s2];
@@ -18857,19 +19015,19 @@ module.exports = (function() {
                           if (s0 === peg$FAILED) {
                             s0 = peg$currPos;
                             if (input.charCodeAt(peg$currPos) === 55299) {
-                              s1 = peg$c512;
+                              s1 = peg$c516;
                               peg$currPos++;
                             } else {
                               s1 = peg$FAILED;
-                              if (peg$silentFails === 0) { peg$fail(peg$c513); }
+                              if (peg$silentFails === 0) { peg$fail(peg$c517); }
                             }
                             if (s1 !== peg$FAILED) {
-                              if (peg$c514.test(input.charAt(peg$currPos))) {
+                              if (peg$c518.test(input.charAt(peg$currPos))) {
                                 s2 = input.charAt(peg$currPos);
                                 peg$currPos++;
                               } else {
                                 s2 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c515); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c519); }
                               }
                               if (s2 !== peg$FAILED) {
                                 s1 = [s1, s2];
@@ -18885,19 +19043,19 @@ module.exports = (function() {
                             if (s0 === peg$FAILED) {
                               s0 = peg$currPos;
                               if (input.charCodeAt(peg$currPos) === 55360) {
-                                s1 = peg$c516;
+                                s1 = peg$c520;
                                 peg$currPos++;
                               } else {
                                 s1 = peg$FAILED;
-                                if (peg$silentFails === 0) { peg$fail(peg$c517); }
+                                if (peg$silentFails === 0) { peg$fail(peg$c521); }
                               }
                               if (s1 !== peg$FAILED) {
-                                if (peg$c518.test(input.charAt(peg$currPos))) {
+                                if (peg$c522.test(input.charAt(peg$currPos))) {
                                   s2 = input.charAt(peg$currPos);
                                   peg$currPos++;
                                 } else {
                                   s2 = peg$FAILED;
-                                  if (peg$silentFails === 0) { peg$fail(peg$c519); }
+                                  if (peg$silentFails === 0) { peg$fail(peg$c523); }
                                 }
                                 if (s2 !== peg$FAILED) {
                                   s1 = [s1, s2];
@@ -18913,19 +19071,19 @@ module.exports = (function() {
                               if (s0 === peg$FAILED) {
                                 s0 = peg$currPos;
                                 if (input.charCodeAt(peg$currPos) === 55422) {
-                                  s1 = peg$c520;
+                                  s1 = peg$c524;
                                   peg$currPos++;
                                 } else {
                                   s1 = peg$FAILED;
-                                  if (peg$silentFails === 0) { peg$fail(peg$c521); }
+                                  if (peg$silentFails === 0) { peg$fail(peg$c525); }
                                 }
                                 if (s1 !== peg$FAILED) {
-                                  if (peg$c522.test(input.charAt(peg$currPos))) {
+                                  if (peg$c526.test(input.charAt(peg$currPos))) {
                                     s2 = input.charAt(peg$currPos);
                                     peg$currPos++;
                                   } else {
                                     s2 = peg$FAILED;
-                                    if (peg$silentFails === 0) { peg$fail(peg$c523); }
+                                    if (peg$silentFails === 0) { peg$fail(peg$c527); }
                                   }
                                   if (s2 !== peg$FAILED) {
                                     s1 = [s1, s2];
@@ -18941,19 +19099,19 @@ module.exports = (function() {
                                 if (s0 === peg$FAILED) {
                                   s0 = peg$currPos;
                                   if (input.charCodeAt(peg$currPos) === 55405) {
-                                    s1 = peg$c524;
+                                    s1 = peg$c528;
                                     peg$currPos++;
                                   } else {
                                     s1 = peg$FAILED;
-                                    if (peg$silentFails === 0) { peg$fail(peg$c525); }
+                                    if (peg$silentFails === 0) { peg$fail(peg$c529); }
                                   }
                                   if (s1 !== peg$FAILED) {
-                                    if (peg$c526.test(input.charAt(peg$currPos))) {
+                                    if (peg$c530.test(input.charAt(peg$currPos))) {
                                       s2 = input.charAt(peg$currPos);
                                       peg$currPos++;
                                     } else {
                                       s2 = peg$FAILED;
-                                      if (peg$silentFails === 0) { peg$fail(peg$c527); }
+                                      if (peg$silentFails === 0) { peg$fail(peg$c531); }
                                     }
                                     if (s2 !== peg$FAILED) {
                                       s1 = [s1, s2];
@@ -18969,19 +19127,19 @@ module.exports = (function() {
                                   if (s0 === peg$FAILED) {
                                     s0 = peg$currPos;
                                     if (input.charCodeAt(peg$currPos) === 55322) {
-                                      s1 = peg$c528;
+                                      s1 = peg$c532;
                                       peg$currPos++;
                                     } else {
                                       s1 = peg$FAILED;
-                                      if (peg$silentFails === 0) { peg$fail(peg$c529); }
+                                      if (peg$silentFails === 0) { peg$fail(peg$c533); }
                                     }
                                     if (s1 !== peg$FAILED) {
-                                      if (peg$c530.test(input.charAt(peg$currPos))) {
+                                      if (peg$c534.test(input.charAt(peg$currPos))) {
                                         s2 = input.charAt(peg$currPos);
                                         peg$currPos++;
                                       } else {
                                         s2 = peg$FAILED;
-                                        if (peg$silentFails === 0) { peg$fail(peg$c531); }
+                                        if (peg$silentFails === 0) { peg$fail(peg$c535); }
                                       }
                                       if (s2 !== peg$FAILED) {
                                         s1 = [s1, s2];
@@ -18997,19 +19155,19 @@ module.exports = (function() {
                                     if (s0 === peg$FAILED) {
                                       s0 = peg$currPos;
                                       if (input.charCodeAt(peg$currPos) === 55298) {
-                                        s1 = peg$c532;
+                                        s1 = peg$c536;
                                         peg$currPos++;
                                       } else {
                                         s1 = peg$FAILED;
-                                        if (peg$silentFails === 0) { peg$fail(peg$c533); }
+                                        if (peg$silentFails === 0) { peg$fail(peg$c537); }
                                       }
                                       if (s1 !== peg$FAILED) {
-                                        if (peg$c534.test(input.charAt(peg$currPos))) {
+                                        if (peg$c538.test(input.charAt(peg$currPos))) {
                                           s2 = input.charAt(peg$currPos);
                                           peg$currPos++;
                                         } else {
                                           s2 = peg$FAILED;
-                                          if (peg$silentFails === 0) { peg$fail(peg$c535); }
+                                          if (peg$silentFails === 0) { peg$fail(peg$c539); }
                                         }
                                         if (s2 !== peg$FAILED) {
                                           s1 = [s1, s2];
@@ -19025,19 +19183,19 @@ module.exports = (function() {
                                       if (s0 === peg$FAILED) {
                                         s0 = peg$currPos;
                                         if (input.charCodeAt(peg$currPos) === 55309) {
-                                          s1 = peg$c536;
+                                          s1 = peg$c540;
                                           peg$currPos++;
                                         } else {
                                           s1 = peg$FAILED;
-                                          if (peg$silentFails === 0) { peg$fail(peg$c537); }
+                                          if (peg$silentFails === 0) { peg$fail(peg$c541); }
                                         }
                                         if (s1 !== peg$FAILED) {
-                                          if (peg$c538.test(input.charAt(peg$currPos))) {
+                                          if (peg$c542.test(input.charAt(peg$currPos))) {
                                             s2 = input.charAt(peg$currPos);
                                             peg$currPos++;
                                           } else {
                                             s2 = peg$FAILED;
-                                            if (peg$silentFails === 0) { peg$fail(peg$c539); }
+                                            if (peg$silentFails === 0) { peg$fail(peg$c543); }
                                           }
                                           if (s2 !== peg$FAILED) {
                                             s1 = [s1, s2];
@@ -19076,7 +19234,7 @@ module.exports = (function() {
     function peg$parseUnicodeCombiningMark() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 199,
+      var key    = peg$currPos * 205 + 200,
           cached = peg$cache[key];
 
       if (cached) {
@@ -19084,29 +19242,29 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c540.test(input.charAt(peg$currPos))) {
+      if (peg$c544.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c541); }
+        if (peg$silentFails === 0) { peg$fail(peg$c545); }
       }
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 56128) {
-          s1 = peg$c542;
+          s1 = peg$c546;
           peg$currPos++;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c543); }
+          if (peg$silentFails === 0) { peg$fail(peg$c547); }
         }
         if (s1 !== peg$FAILED) {
-          if (peg$c544.test(input.charAt(peg$currPos))) {
+          if (peg$c548.test(input.charAt(peg$currPos))) {
             s2 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c545); }
+            if (peg$silentFails === 0) { peg$fail(peg$c549); }
           }
           if (s2 !== peg$FAILED) {
             s1 = [s1, s2];
@@ -19122,19 +19280,19 @@ module.exports = (function() {
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
           if (input.charCodeAt(peg$currPos) === 55348) {
-            s1 = peg$c546;
+            s1 = peg$c550;
             peg$currPos++;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c547); }
+            if (peg$silentFails === 0) { peg$fail(peg$c551); }
           }
           if (s1 !== peg$FAILED) {
-            if (peg$c548.test(input.charAt(peg$currPos))) {
+            if (peg$c552.test(input.charAt(peg$currPos))) {
               s2 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s2 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c549); }
+              if (peg$silentFails === 0) { peg$fail(peg$c553); }
             }
             if (s2 !== peg$FAILED) {
               s1 = [s1, s2];
@@ -19150,19 +19308,19 @@ module.exports = (function() {
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 55300) {
-              s1 = peg$c492;
+              s1 = peg$c496;
               peg$currPos++;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c493); }
+              if (peg$silentFails === 0) { peg$fail(peg$c497); }
             }
             if (s1 !== peg$FAILED) {
-              if (peg$c550.test(input.charAt(peg$currPos))) {
+              if (peg$c554.test(input.charAt(peg$currPos))) {
                 s2 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s2 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c551); }
+                if (peg$silentFails === 0) { peg$fail(peg$c555); }
               }
               if (s2 !== peg$FAILED) {
                 s1 = [s1, s2];
@@ -19178,19 +19336,19 @@ module.exports = (function() {
             if (s0 === peg$FAILED) {
               s0 = peg$currPos;
               if (input.charCodeAt(peg$currPos) === 55296) {
-                s1 = peg$c496;
+                s1 = peg$c500;
                 peg$currPos++;
               } else {
                 s1 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c497); }
+                if (peg$silentFails === 0) { peg$fail(peg$c501); }
               }
               if (s1 !== peg$FAILED) {
-                if (peg$c552.test(input.charAt(peg$currPos))) {
+                if (peg$c556.test(input.charAt(peg$currPos))) {
                   s2 = input.charAt(peg$currPos);
                   peg$currPos++;
                 } else {
                   s2 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c553); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c557); }
                 }
                 if (s2 !== peg$FAILED) {
                   s1 = [s1, s2];
@@ -19206,19 +19364,19 @@ module.exports = (function() {
               if (s0 === peg$FAILED) {
                 s0 = peg$currPos;
                 if (input.charCodeAt(peg$currPos) === 55298) {
-                  s1 = peg$c532;
+                  s1 = peg$c536;
                   peg$currPos++;
                 } else {
                   s1 = peg$FAILED;
-                  if (peg$silentFails === 0) { peg$fail(peg$c533); }
+                  if (peg$silentFails === 0) { peg$fail(peg$c537); }
                 }
                 if (s1 !== peg$FAILED) {
-                  if (peg$c554.test(input.charAt(peg$currPos))) {
+                  if (peg$c558.test(input.charAt(peg$currPos))) {
                     s2 = input.charAt(peg$currPos);
                     peg$currPos++;
                   } else {
                     s2 = peg$FAILED;
-                    if (peg$silentFails === 0) { peg$fail(peg$c555); }
+                    if (peg$silentFails === 0) { peg$fail(peg$c559); }
                   }
                   if (s2 !== peg$FAILED) {
                     s1 = [s1, s2];
@@ -19245,7 +19403,7 @@ module.exports = (function() {
     function peg$parseUnicodeDigit() {
       var s0, s1, s2;
 
-      var key    = peg$currPos * 204 + 200,
+      var key    = peg$currPos * 205 + 201,
           cached = peg$cache[key];
 
       if (cached) {
@@ -19253,29 +19411,29 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c556.test(input.charAt(peg$currPos))) {
+      if (peg$c560.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c557); }
+        if (peg$silentFails === 0) { peg$fail(peg$c561); }
       }
       if (s0 === peg$FAILED) {
         s0 = peg$currPos;
         if (input.charCodeAt(peg$currPos) === 55349) {
-          s1 = peg$c488;
+          s1 = peg$c492;
           peg$currPos++;
         } else {
           s1 = peg$FAILED;
-          if (peg$silentFails === 0) { peg$fail(peg$c489); }
+          if (peg$silentFails === 0) { peg$fail(peg$c493); }
         }
         if (s1 !== peg$FAILED) {
-          if (peg$c558.test(input.charAt(peg$currPos))) {
+          if (peg$c562.test(input.charAt(peg$currPos))) {
             s2 = input.charAt(peg$currPos);
             peg$currPos++;
           } else {
             s2 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c559); }
+            if (peg$silentFails === 0) { peg$fail(peg$c563); }
           }
           if (s2 !== peg$FAILED) {
             s1 = [s1, s2];
@@ -19291,19 +19449,19 @@ module.exports = (function() {
         if (s0 === peg$FAILED) {
           s0 = peg$currPos;
           if (input.charCodeAt(peg$currPos) === 55300) {
-            s1 = peg$c492;
+            s1 = peg$c496;
             peg$currPos++;
           } else {
             s1 = peg$FAILED;
-            if (peg$silentFails === 0) { peg$fail(peg$c493); }
+            if (peg$silentFails === 0) { peg$fail(peg$c497); }
           }
           if (s1 !== peg$FAILED) {
-            if (peg$c560.test(input.charAt(peg$currPos))) {
+            if (peg$c564.test(input.charAt(peg$currPos))) {
               s2 = input.charAt(peg$currPos);
               peg$currPos++;
             } else {
               s2 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c561); }
+              if (peg$silentFails === 0) { peg$fail(peg$c565); }
             }
             if (s2 !== peg$FAILED) {
               s1 = [s1, s2];
@@ -19319,19 +19477,19 @@ module.exports = (function() {
           if (s0 === peg$FAILED) {
             s0 = peg$currPos;
             if (input.charCodeAt(peg$currPos) === 55297) {
-              s1 = peg$c504;
+              s1 = peg$c508;
               peg$currPos++;
             } else {
               s1 = peg$FAILED;
-              if (peg$silentFails === 0) { peg$fail(peg$c505); }
+              if (peg$silentFails === 0) { peg$fail(peg$c509); }
             }
             if (s1 !== peg$FAILED) {
-              if (peg$c562.test(input.charAt(peg$currPos))) {
+              if (peg$c566.test(input.charAt(peg$currPos))) {
                 s2 = input.charAt(peg$currPos);
                 peg$currPos++;
               } else {
                 s2 = peg$FAILED;
-                if (peg$silentFails === 0) { peg$fail(peg$c563); }
+                if (peg$silentFails === 0) { peg$fail(peg$c567); }
               }
               if (s2 !== peg$FAILED) {
                 s1 = [s1, s2];
@@ -19356,7 +19514,7 @@ module.exports = (function() {
     function peg$parseUnicodeConnectorPunctuation() {
       var s0;
 
-      var key    = peg$currPos * 204 + 201,
+      var key    = peg$currPos * 205 + 202,
           cached = peg$cache[key];
 
       if (cached) {
@@ -19364,12 +19522,12 @@ module.exports = (function() {
         return cached.result;
       }
 
-      if (peg$c564.test(input.charAt(peg$currPos))) {
+      if (peg$c568.test(input.charAt(peg$currPos))) {
         s0 = input.charAt(peg$currPos);
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c565); }
+        if (peg$silentFails === 0) { peg$fail(peg$c569); }
       }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
@@ -19380,7 +19538,7 @@ module.exports = (function() {
     function peg$parseZWNJ() {
       var s0;
 
-      var key    = peg$currPos * 204 + 202,
+      var key    = peg$currPos * 205 + 203,
           cached = peg$cache[key];
 
       if (cached) {
@@ -19389,11 +19547,11 @@ module.exports = (function() {
       }
 
       if (input.charCodeAt(peg$currPos) === 8204) {
-        s0 = peg$c566;
+        s0 = peg$c570;
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c567); }
+        if (peg$silentFails === 0) { peg$fail(peg$c571); }
       }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
@@ -19404,7 +19562,7 @@ module.exports = (function() {
     function peg$parseZWJ() {
       var s0;
 
-      var key    = peg$currPos * 204 + 203,
+      var key    = peg$currPos * 205 + 204,
           cached = peg$cache[key];
 
       if (cached) {
@@ -19413,11 +19571,11 @@ module.exports = (function() {
       }
 
       if (input.charCodeAt(peg$currPos) === 8205) {
-        s0 = peg$c568;
+        s0 = peg$c572;
         peg$currPos++;
       } else {
         s0 = peg$FAILED;
-        if (peg$silentFails === 0) { peg$fail(peg$c569); }
+        if (peg$silentFails === 0) { peg$fail(peg$c573); }
       }
 
       peg$cache[key] = { nextPos: peg$currPos, result: s0 };
@@ -19604,8 +19762,9 @@ module.exports = (function() {
     };
     foldBinaryExpr = function (parts, ignoreChains) {
       var chainStack, expr, leftOperand, nextOp, nextPrec, operator, prec, rightOperand, stack;
-      if (parts.length < 3)
+      if (parts.length < 3) {
         return parts[0];
+      }
       stack = [].slice.call(parts, 0, 3);
       parts = [].slice.call(parts, 3);
       while (parts.length > 0) {
@@ -19623,8 +19782,9 @@ module.exports = (function() {
                 nextPrec = precedenceTable[nextOp];
                 prec = precedenceTable[operator];
               }
-              if (!(null != nextOp && (nextPrec > prec || in$(nextOp, chainableComparisonOps))))
+              if (!(null != nextOp && (nextPrec > prec || in$(nextOp, chainableComparisonOps)))) {
                 break;
+              }
             }
             stack.push(new CS.ChainedComparisonOp(foldBinaryExpr(chainStack, true)));
             continue;
@@ -19687,16 +19847,19 @@ module.exports = (function() {
     };
     isValidRegExpFlags = function (flags) {
       var f, flag;
-      if (!flags)
+      if (!flags) {
         return true;
-      if (flags.length > 4)
+      }
+      if (flags.length > 4) {
         return false;
+      }
       flags.sort();
       flag = null;
       for (var i$1 = 0, length$1 = flags.length; i$1 < length$1; ++i$1) {
         f = flags[i$1];
-        if (flag === f)
+        if (flag === f) {
           return false;
+        }
         flag = f;
       }
       return true;
@@ -19711,11 +19874,13 @@ module.exports = (function() {
         wholeMatch = cache$[0];
         attempt = cache$[1];
         matchStr = matchStr.slice(match.index + wholeMatch.length);
-        if (!(null != indent) || 0 < attempt.length && attempt.length < indent.length)
+        if (!(null != indent) || 0 < attempt.length && attempt.length < indent.length) {
           indent = attempt;
+        }
       }
-      if (indent)
+      if (indent) {
         str = str.replace(new RegExp('\\n' + indent, 'g'), '\n');
+      }
       str = str.replace(/^\n/, '');
       return str;
     };
@@ -19726,31 +19891,36 @@ module.exports = (function() {
         piece = pieces[i$1];
         index = i$1;
         if (piece instanceof CS.String) {
-          if (index === pieces.length - 1)
+          if (index === pieces.length - 1) {
             piece.data = piece.data.replace(/\s+$/, '');
+          }
           matchStr = piece.data;
           while (match = /\n+([^\n\S]*)/.exec(matchStr)) {
             cache$ = match;
             wholeMatch = cache$[0];
             attempt = cache$[1];
             matchStr = matchStr.slice(match.index + wholeMatch.length);
-            if (!(null != indent) || 0 < attempt.length && attempt.length < indent.length)
+            if (!(null != indent) || 0 < attempt.length && attempt.length < indent.length) {
               indent = attempt;
+            }
           }
         }
       }
-      if (indent)
+      if (indent) {
         for (var i$2 = 0, length$2 = pieces.length; i$2 < length$2; ++i$2) {
           piece = pieces[i$2];
           index = i$2;
           if (piece instanceof CS.String) {
             piece.data = piece.data.replace(new RegExp('\\n' + indent, 'g'), '\n');
-            if (index === pieces.length - 1)
+            if (index === pieces.length - 1) {
               piece.data = piece.data.replace(/(\n\s*)+$/, '');
-            if (index === 0)
+            }
+            if (index === 0) {
               piece.data = piece.data.replace(/^\n/, '');
+            }
           }
         }
+      }
       return pieces;
     };
     r = function (node) {
@@ -19775,8 +19945,9 @@ module.exports = (function() {
     id = function (x) {
       return x;
     };
-    if (!options.raw)
+    if (!options.raw) {
       r = p = rp = id;
+    }
     eval('\n  // XXX: this overrides the function with the same name generated by PEGjs; see comment within\n  function peg$computePosDetails() {\n    function advanceCachedReportedPos() {\n      var ch;\n\n      for (; peg$cachedPos < peg$reportedPos; peg$cachedPos++) {\n        ch = input.charAt(peg$cachedPos);\n        if (ch === "\\n") {\n          if (!peg$cachedPosDetails.seenCR) { peg$cachedPosDetails.line++; }\n          peg$cachedPosDetails.column = 1;\n          peg$cachedPosDetails.seenCR = false;\n        } else if (ch === "\\r" || ch === "\\u2028" || ch === "\\u2029") {\n          peg$cachedPosDetails.line++;\n          peg$cachedPosDetails.column = 1;\n          peg$cachedPosDetails.seenCR = true;\n        // XXX: strip control characters when calculating position information; see #117\n        } else if(!/[\\uEFEF\\uEFFE\\uEFFF]/.test(ch)) {\n          peg$cachedPosDetails.column++;\n          peg$cachedPosDetails.seenCR = false;\n        }\n      }\n    }\n\n    if (peg$cachedPos !== peg$reportedPos) {\n      if (peg$cachedPos > peg$reportedPos) {\n        peg$cachedPos = 0;\n        peg$cachedPosDetails = { line: 1, column: 1, seenCR: false };\n      }\n      advanceCachedReportedPos();\n    }\n\n    return peg$cachedPosDetails;\n  }\n  ');
     function isOwn$(o, p) {
       return {}.hasOwnProperty.call(o, p);
diff --git a/lib/pegjs-coffee-plugin.js b/lib/pegjs-coffee-plugin.js
index 5c714df8..f8728b2e 100644
--- a/lib/pegjs-coffee-plugin.js
+++ b/lib/pegjs-coffee-plugin.js
@@ -7,8 +7,9 @@ compile = function (csCode, options) {
   if (null == options)
     options = {};
   csAST = CoffeeScript.parse('-> ' + csCode.trimRight());
-  if (csAST.body.statements.length > 1)
+  if (csAST.body.statements.length > 1) {
     throw new Error('inconsistent base indentation');
+  }
   jsAST = CoffeeScript.compile(csAST, {
     bare: true,
     inScope: options.inScope
diff --git a/lib/preprocessor.js b/lib/preprocessor.js
index 3450a9d5..e3d06baf 100644
--- a/lib/preprocessor.js
+++ b/lib/preprocessor.js
@@ -2,7 +2,7 @@
 var DEDENT, INDENT, pointToErrorLocation, Preprocessor, StringScanner, TERM, ws;
 pointToErrorLocation = require('./helpers').pointToErrorLocation;
 StringScanner = require('StringScanner');
-this.Preprocessor = Preprocessor = function () {
+exports.Preprocessor = Preprocessor = function () {
   ws = '\\t\\x0B\\f\\r \\xA0\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000\\uFEFF';
   INDENT = '\uEFEF';
   DEDENT = '\uEFFE';
@@ -82,34 +82,40 @@ this.Preprocessor = Preprocessor = function () {
       this.context.push(c);
       break;
     case DEDENT:
-      if (!(top === INDENT))
+      if (!(top === INDENT)) {
         this.err(c);
+      }
       this.indents.pop();
       this.context.pop();
       break;
     case '\n':
-      if (!(top === '#' || top === 'heregexp-#'))
+      if (!(top === '#' || top === 'heregexp-#')) {
         this.err(c);
+      }
       this.context.pop();
       break;
     case ']':
-      if (!(top === '[' || top === 'regexp-[' || top === 'heregexp-['))
+      if (!(top === '[' || top === 'regexp-[' || top === 'heregexp-[')) {
         this.err(c);
+      }
       this.context.pop();
       break;
     case ')':
-      if (!(top === '(' || top === 'regexp-(' || top === 'heregexp-('))
+      if (!(top === '(' || top === 'regexp-(' || top === 'heregexp-(')) {
         this.err(c);
+      }
       this.context.pop();
       break;
     case '}':
-      if (!(top === '#{' || top === '{' || top === 'regexp-{' || top === 'heregexp-{'))
+      if (!(top === '#{' || top === '{' || top === 'regexp-{' || top === 'heregexp-{')) {
         this.err(c);
+      }
       this.context.pop();
       break;
     case 'end-\\':
-      if (!(top === '\\'))
+      if (!(top === '\\')) {
         this.err(c);
+      }
       this.context.pop();
       break;
     default:
@@ -118,8 +124,9 @@ this.Preprocessor = Preprocessor = function () {
     return this.context;
   };
   Preprocessor.prototype.p = function (s) {
-    if (null != s)
+    if (null != s) {
       this.preprocessed = '' + this.preprocessed + s;
+    }
     return s;
   };
   Preprocessor.prototype.scan = function (r) {
@@ -174,14 +181,16 @@ this.Preprocessor = Preprocessor = function () {
         spaceBefore = new RegExp('[' + ws + ']').test(lastChar);
         impliedRegexp = /[;,=><*%^&|[(+!~-]/.test(lastChar);
       }
-      if (pos === 1 || impliedRegexp || spaceBefore && !this.ss.check(new RegExp('[' + ws + '=]')) && this.ss.check(/[^\r\n]*\//))
+      if (pos === 1 || impliedRegexp || spaceBefore && !this.ss.check(new RegExp('[' + ws + '=]')) && this.ss.check(/[^\r\n]*\//)) {
         return this.observe('/');
+      }
     }
   };
   Preprocessor.prototype.process = function (input) {
     var tok;
-    if (this.options.literate)
+    if (this.options.literate) {
       input = input.replace(/^( {0,3}\S)/gm, '    #$1');
+    }
     this.ss = new StringScanner(input);
     while (!this.ss.eos()) {
       switch (this.peek()) {
@@ -228,8 +237,9 @@ this.Preprocessor = Preprocessor = function () {
         }
         break;
       case '\\':
-        if (this.scan(/[\s\S]/))
+        if (this.scan(/[\s\S]/)) {
           this.observe('end-\\');
+        }
         break;
       case '"""':
         this.scan(/(?:[^"#\\]+|""?(?!")|#(?!{)|\\.)+/);
@@ -243,35 +253,41 @@ this.Preprocessor = Preprocessor = function () {
       case '"':
         this.scan(/(?:[^"#\\]+|#(?!{)|\\.)+/);
         this.ss.scan(/\\\n/);
-        if (tok = this.scan(/#{|"/))
+        if (tok = this.scan(/#{|"/)) {
           this.observe(tok);
+        }
         break;
       case "'''":
         this.scan(/(?:[^'\\]+|''?(?!')|\\.)+/);
         this.ss.scan(/\\\n/);
-        if (tok = this.scan(/'''/))
+        if (tok = this.scan(/'''/)) {
           this.observe(tok);
+        }
         break;
       case "'":
         this.scan(/(?:[^'\\]+|\\.)+/);
         this.ss.scan(/\\\n/);
-        if (tok = this.scan(/'/))
+        if (tok = this.scan(/'/)) {
           this.observe(tok);
+        }
         break;
       case '###':
         this.scan(/(?:[^#]+|##?(?!#))+/);
-        if (tok = this.scan(/###/))
+        if (tok = this.scan(/###/)) {
           this.observe(tok);
+        }
         break;
       case '#':
         this.scan(/[^\n]+/);
-        if (tok = this.scan(/\n/))
+        if (tok = this.scan(/\n/)) {
           this.observe(tok);
+        }
         break;
       case '`':
         this.scan(/[^`]+/);
-        if (tok = this.scan(/`/))
+        if (tok = this.scan(/`/)) {
           this.observe(tok);
+        }
         break;
       case '///':
         this.scan(/(?:[^[/#\\]+|\/\/?(?!\/)|\\.)+/);
@@ -285,13 +301,15 @@ this.Preprocessor = Preprocessor = function () {
         break;
       case 'heregexp-[':
         this.scan(/(?:[^\]\/\\]+|\/\/?(?!\/))+/);
-        if (tok = this.scan(/[\]\\]|#{|\/\/\//))
+        if (tok = this.scan(/[\]\\]|#{|\/\/\//)) {
           this.observe(tok);
+        }
         break;
       case 'heregexp-#':
         this.ss.scan(/(?:[^\n/]+|\/\/?(?!\/))+/);
-        if (tok = this.scan(/\n|\/\/\//))
+        if (tok = this.scan(/\n|\/\/\//)) {
           this.observe(tok);
+        }
         break;
       case '/':
         this.scan(/[^[/\\]+/);
@@ -303,8 +321,9 @@ this.Preprocessor = Preprocessor = function () {
         break;
       case 'regexp-[':
         this.scan(/[^\]\\]+/);
-        if (tok = this.scan(/[\]\\]/))
+        if (tok = this.scan(/[\]\\]/)) {
           this.observe(tok);
+        }
       }
     }
     this.scan(new RegExp('[' + ws + '\\n]*$'));
diff --git a/lib/repl.js b/lib/repl.js
index eb71c11f..4d847841 100644
--- a/lib/repl.js
+++ b/lib/repl.js
@@ -35,8 +35,9 @@ addMultilineHandler = function (repl) {
     }
   });
   return inputStream.on('keypress', function (char, key) {
-    if (!(key && key.ctrl && !key.meta && !key.shift && key.name === 'v'))
+    if (!(key && key.ctrl && !key.meta && !key.shift && key.name === 'v')) {
       return;
+    }
     if (enabled) {
       if (!buffer.match(/\n/)) {
         enabled = !enabled;
@@ -44,8 +45,9 @@ addMultilineHandler = function (repl) {
         rli.prompt(true);
         return;
       }
-      if (null != rli.line && !rli.line.match(/^\s*$/))
+      if (null != rli.line && !rli.line.match(/^\s*$/)) {
         return;
+      }
       enabled = !enabled;
       rli.line = '';
       rli.cursor = 0;
@@ -68,13 +70,16 @@ addHistory = function (repl, filename, maxSize) {
     size = Math.min(maxSize, stat.size);
     readFd = fs.openSync(filename, 'r');
     buffer = new Buffer(size);
-    if (size)
+    if (size) {
       fs.readSync(readFd, buffer, 0, size, stat.size - size);
+    }
     repl.rli.history = buffer.toString().split('\n').reverse();
-    if (stat.size > maxSize)
+    if (stat.size > maxSize) {
       repl.rli.history.pop();
-    if (repl.rli.history[0] === '')
+    }
+    if (repl.rli.history[0] === '') {
       repl.rli.history.shift();
+    }
     repl.rli.historyIndex = -1;
   } catch (e$) {
     e = e$;
@@ -138,8 +143,9 @@ module.exports = {
       input = input.replace(/\uFF00/g, '\n');
       input = input.replace(/^\(([\s\S]*)\n\)$/m, '$1');
       input = input.replace(/(^|[\r\n]+)(\s*)##?(?:[^#\r\n][^\r\n]*|)($|[\r\n])/, '$1$2$3');
-      if (/^\s*$/.test(input))
+      if (/^\s*$/.test(input)) {
         return cb(null);
+      }
       try {
         inputAst = CoffeeScript.parse(input, {
           filename: filename,
@@ -162,8 +168,9 @@ module.exports = {
       return repl.outputStream.write('\n');
     });
     addMultilineHandler(repl);
-    if (opts.historyFile)
+    if (opts.historyFile) {
       addHistory(repl, opts.historyFile, opts.historyMaxInputSize);
+    }
     repl.commands[getCommandId(repl, 'load')].help = 'Load code from a file into this REPL session';
     return repl;
   }
diff --git a/lib/reporter.js b/lib/reporter.js
new file mode 100644
index 00000000..a573ec60
--- /dev/null
+++ b/lib/reporter.js
@@ -0,0 +1,86 @@
+// Generated by TypedCoffeeScript 0.8.5
+var pj, render, Reporter, TypeError;
+pj = function () {
+  try {
+    return require('prettyjson');
+  } catch (e$) {
+    return;
+  }
+}.call(this);
+render = function (obj) {
+  if (null != pj)
+    return pj.render(obj);
+};
+TypeError = require('./type-helpers').TypeError;
+Reporter = function () {
+  function Reporter() {
+    var instance$;
+    instance$ = this;
+    this.add_warning = function (a, b) {
+      return Reporter.prototype.add_warning.apply(instance$, arguments);
+    };
+    this.clean = function () {
+      return Reporter.prototype.clean.apply(instance$, arguments);
+    };
+    this.add_error = function (a, b) {
+      return Reporter.prototype.add_error.apply(instance$, arguments);
+    };
+    this.errors = [];
+    this.warnings = [];
+  }
+  Reporter.prototype.has_errors = function () {
+    return this.errors.length > 0;
+  };
+  Reporter.prototype.has_warnings = function () {
+    return this.warnings.length > 0;
+  };
+  Reporter.prototype.report = function () {
+    var errors;
+    errors = this.errors.map(function (param$) {
+      var cache$, node, text;
+      {
+        cache$ = param$;
+        node = cache$[0];
+        text = cache$[1];
+      }
+      return '' + text + '\n  at | ' + node.raw + '';
+    });
+    return '[Error]\n' + errors.join('\n') + '';
+  };
+  Reporter.prototype.add_error = function (node, text) {
+    return this.errors.push([
+      node,
+      text
+    ]);
+  };
+  Reporter.prototype.clean = function () {
+    return this.errors = [];
+  };
+  Reporter.prototype.add_warning = function (node) {
+    var ws;
+    ws = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
+    return this.warnings.push([
+      node,
+      ws.join('')
+    ]);
+  };
+  Reporter.prototype.dump = function (node, prefix) {
+    var key, next, val;
+    if (null == prefix)
+      prefix = '';
+    console.log(prefix + ('[' + node.name + ']'));
+    for (key in node._vars) {
+      val = node._vars[key];
+      console.log(prefix, ' +', key, '::', JSON.stringify(val));
+    }
+    return function (accum$) {
+      for (var i$ = 0, length$ = node.nodes.length; i$ < length$; ++i$) {
+        next = node.nodes[i$];
+        accum$.push(this.dump(next, prefix + '  '));
+      }
+      return accum$;
+    }.call(this, []);
+  };
+  return Reporter;
+}();
+module.exports = new Reporter;
diff --git a/lib/run.js b/lib/run.js
index a567eb11..5f880347 100644
--- a/lib/run.js
+++ b/lib/run.js
@@ -6,8 +6,9 @@ CoffeeScript = require('./module');
 SourceMapConsumer = require('source-map').SourceMapConsumer;
 patched = false;
 patchStackTrace = function () {
-  if (patched)
+  if (patched) {
     return;
+  }
   patched = true;
   if (null != Module._sourceMaps)
     Module._sourceMaps;
@@ -30,8 +31,9 @@ patchStackTrace = function () {
     frames = function (accum$) {
       for (var i$ = 0, length$ = stack.length; i$ < length$; ++i$) {
         frame = stack[i$];
-        if (frame.getFunction() === exports.runMain)
+        if (frame.getFunction() === exports.runMain) {
           break;
+        }
         accum$.push('  at ' + formatSourcePosition(frame, getSourceMapping));
       }
       return accum$;
@@ -48,8 +50,9 @@ formatSourcePosition = function (frame, getSourceMapping) {
   } else {
     if (frame.isEval()) {
       fileName = frame.getScriptNameOrSourceURL();
-      if (!fileName)
+      if (!fileName) {
         fileLocation = '' + frame.getEvalOrigin() + ', ';
+      }
     } else {
       fileName = frame.getFileName();
     }
@@ -67,10 +70,12 @@ formatSourcePosition = function (frame, getSourceMapping) {
     typeName = frame.getTypeName();
     if (functionName) {
       tp = as = '';
-      if (typeName && functionName.indexOf(typeName))
+      if (typeName && functionName.indexOf(typeName)) {
         tp = '' + typeName + '.';
-      if (methodName && functionName.indexOf('.' + methodName) !== functionName.length - methodName.length - 1)
+      }
+      if (methodName && functionName.indexOf('.' + methodName) !== functionName.length - methodName.length - 1) {
         as = ' [as ' + methodName + ']';
+      }
       return '' + tp + functionName + as + ' (' + fileLocation + ')';
     } else {
       return '' + typeName + '.' + (methodName || '<anonymous>') + ' (' + fileLocation + ')';
diff --git a/lib/type-helpers.js b/lib/type-helpers.js
new file mode 100644
index 00000000..f7570c1b
--- /dev/null
+++ b/lib/type-helpers.js
@@ -0,0 +1,88 @@
+// Generated by TypedCoffeeScript 0.8.5
+var ArrayInterface, clone, NumberInterface, ObjectInterface, rewrite;
+this.clone = clone = function (obj) {
+  var flags, key, newInstance;
+  if (!(null != obj) || typeof obj !== 'object')
+    return obj;
+  if (obj instanceof Date)
+    return new Date(obj.getTime());
+  if (obj instanceof RegExp) {
+    flags = '';
+    if (null != obj.global)
+      flags += 'g';
+    if (null != obj.ignoreCase)
+      flags += 'i';
+    if (null != obj.multiline)
+      flags += 'm';
+    if (null != obj.sticky)
+      flags += 'y';
+    return new RegExp(obj.source, flags);
+  }
+  newInstance = new obj.constructor;
+  for (key in obj) {
+    newInstance[key] = clone(obj[key]);
+  }
+  return newInstance;
+};
+this.rewrite = rewrite = function (obj, replacer) {
+  var key, val;
+  if (typeof obj === 'string' || typeof obj === 'number')
+    return;
+  return function (accum$) {
+    for (key in obj) {
+      val = obj[key];
+      accum$.push(typeof val === 'string' ? null != replacer[val] ? obj[key] = replacer[val] : void 0 : val instanceof Object ? rewrite(val, replacer) : void 0);
+    }
+    return accum$;
+  }.call(this, []);
+};
+this.TypeError = function () {
+  function TypeError(param$) {
+    this.message = param$;
+  }
+  return TypeError;
+}();
+NumberInterface = {
+  toString: {
+    name: 'function',
+    _args_: [],
+    _return_: 'String'
+  }
+};
+ArrayInterface = {
+  length: 'Number',
+  push: {
+    name: 'function',
+    _args_: ['T'],
+    _return_: 'void'
+  },
+  unshift: {
+    name: 'function',
+    _args_: ['T'],
+    _return_: 'void'
+  },
+  shift: {
+    name: 'function',
+    _args_: [],
+    _return_: 'T'
+  },
+  toString: {
+    name: 'function',
+    _args_: [],
+    _return_: 'String'
+  }
+};
+ObjectInterface = function () {
+  return {
+    toString: {
+      name: 'function',
+      _args_: [],
+      _return_: 'String'
+    },
+    keys: {
+      name: 'function',
+      _args_: ['Any'],
+      _return_: { array: 'String' }
+    }
+  };
+};
diff --git a/lib/type_checker.js b/lib/type_checker.js
new file mode 100644
index 00000000..c8de10a8
--- /dev/null
+++ b/lib/type_checker.js
@@ -0,0 +1,658 @@
+// Generated by CoffeeScript 0.8.5
+var checkNodes, ClassScope, console, CS, FunctionScope, g, initializeGlobalTypes, pj, render, reporter, Scope, walk, walk_arrayInializer, walk_assignOp, walk_binOp, walk_block, walk_bool, walk_class, walk_classProtoAssignOp, walk_conditional, walk_float, walk_for, walk_function, walk_functionApplication, walk_identifier, walk_int, walk_memberAccess, walk_newOp, walk_numbers, walk_objectInitializer, walk_primitives, walk_program, walk_range, walk_return, walk_string, walk_struct, walk_switch, walk_this, walk_vardef;
+console = {
+  log: function () {
+  }
+};
+pj = function () {
+  try {
+    return require('prettyjson');
+  } catch (e$) {
+    return;
+  }
+}.call(this);
+render = function (obj) {
+  if (null != pj)
+    return pj.render(obj);
+};
+reporter = require('./reporter');
+CS = require('./nodes');
+cache$ = require('./types');
+initializeGlobalTypes = cache$.initializeGlobalTypes;
+Scope = cache$.Scope;
+ClassScope = cache$.ClassScope;
+FunctionScope = cache$.FunctionScope;
+g = 'undefined' !== typeof window && null != window ? window : global;
+checkNodes = function (cs_ast) {
+  var i, root;
+  if (!(null != (null != cs_ast.body ? cs_ast.body.statements : void 0)))
+    return;
+  if (g._root_) {
+    root = g._root_;
+  } else {
+    g._root_ = root = new Scope;
+    root.name = 'root';
+    for (var cache$1 = [
+          'global',
+          'exports',
+          'module'
+        ], i$ = 0, length$ = cache$1.length; i$ < length$; ++i$) {
+      i = cache$1[i$];
+      root.addVar(i, 'Any', true);
+    }
+    initializeGlobalTypes(root);
+  }
+  walk(cs_ast, root);
+  return root;
+};
+walk_struct = function (node, scope) {
+  if (node.name instanceof Object) {
+    return scope.addType(node.name._base_, node.expr, node.name._templates_);
+  } else {
+    return scope.addType(node.name, node.expr);
+  }
+};
+walk_vardef = function (node, scope) {
+  var symbol;
+  symbol = node.name === 'constructor' ? '_constructor_' : node.name;
+  if (scope instanceof ClassScope) {
+    return scope.addThis(symbol, node.expr);
+  } else {
+    return scope.addVar(symbol, node.expr);
+  }
+};
+walk_program = function (node, scope) {
+  walk(node.body.statements, scope);
+  return node.annotation = { dataType: 'Program' };
+};
+walk_block = function (node, scope) {
+  var last_annotation;
+  walk(node.statements, scope);
+  last_annotation = null != node.statements[node.statements.length - 1] ? node.statements[node.statements.length - 1].annotation : void 0;
+  return node.annotation = last_annotation;
+};
+walk_return = function (node, scope) {
+  walk(node.expression, scope);
+  if (null != (null != node.expression && null != node.expression.annotation ? node.expression.annotation.dataType : void 0)) {
+    scope.addReturnable(node.expression.annotation.dataType);
+    return node.annotation = node.expression.annotation;
+  }
+};
+walk_binOp = function (node, scope) {
+  var left_type, right_type;
+  walk(node.left, scope);
+  walk(node.right, scope);
+  left_type = null != node.left && null != node.left.annotation ? node.left.annotation.dataType : void 0;
+  right_type = null != node.right && null != node.right.annotation ? node.right.annotation.dataType : void 0;
+  if (left_type && right_type) {
+    if (left_type === 'String' || right_type === 'String') {
+      return node.annotation = { dataType: 'String' };
+    } else if (left_type === 'Int' && right_type === 'Int') {
+      return node.annotation = { dataType: 'Int' };
+    } else if ((left_type === 'Int' || left_type === 'Float') && (right_type === 'Int' || right_type === 'Float')) {
+      return node.annotation = { dataType: 'Float' };
+    } else if ((left_type === 'Int' || left_type === 'Float' || left_type === 'Number') && (right_type === 'Int' || right_type === 'Float' || right_type === 'Number')) {
+      return node.annotation = { dataType: 'Number' };
+    } else if (left_type === right_type) {
+      return node.annotation = { dataType: left_type };
+    }
+  } else {
+    return node.annotation = { dataType: 'Any' };
+  }
+};
+walk_conditional = function (node, scope) {
+  var alternate_annotation, annotation, dataType, possibilities;
+  walk(node.condition, scope);
+  walk(node.consequent, scope);
+  if (null != node.alternate)
+    walk(node.alternate, scope);
+  alternate_annotation = null != (null != node.alternate ? node.alternate.annotation : void 0) ? null != node.alternate ? node.alternate.annotation : void 0 : { dataType: 'Undefined' };
+  possibilities = [];
+  for (var cache$1 = [
+        null != node.consequent ? node.consequent.annotation : void 0,
+        alternate_annotation
+      ], i$ = 0, length$ = cache$1.length; i$ < length$; ++i$) {
+    annotation = cache$1[i$];
+    if (!('undefined' !== typeof annotation && null != annotation))
+      continue;
+    if (null != (null != annotation.dataType ? annotation.dataType.possibilities : void 0)) {
+      for (var i$1 = 0, length$1 = annotation.dataType.possibilities.length; i$1 < length$1; ++i$1) {
+        dataType = annotation.dataType.possibilities[i$1];
+        possibilities.push(dataType);
+      }
+    } else if (null != annotation.dataType) {
+      possibilities.push(annotation.dataType);
+    }
+  }
+  return node.annotation = { dataType: { possibilities: possibilities } };
+};
+walk_switch = function (node, scope) {
+  var alternate_annotation, c, cond, possibilities;
+  walk(node.expression, scope);
+  for (var i$ = 0, length$ = node.cases.length; i$ < length$; ++i$) {
+    c = node.cases[i$];
+    for (var i$1 = 0, length$1 = c.conditions.length; i$1 < length$1; ++i$1) {
+      cond = c.conditions[i$1];
+      walk(c, scope);
+    }
+    walk(c.consequent, scope);
+  }
+  walk(node.consequent, scope);
+  if (null != node.alternate)
+    walk(node.alternate, scope);
+  alternate_annotation = null != (null != node.alternate ? node.alternate.annotation : void 0) ? null != node.alternate ? node.alternate.annotation : void 0 : { dataType: 'Undefined' };
+  possibilities = [];
+  for (var i$2 = 0, length$2 = node.cases.length; i$2 < length$2; ++i$2) {
+    c = node.cases[i$2];
+    if (!(null != c.annotation))
+      continue;
+    possibilities.push(c.consequent.annotation);
+  }
+  possibilities.push(alternate_annotation.dataType);
+  return node.annotation = { dataType: { possibilities: possibilities } };
+};
+walk_newOp = function (node, scope) {
+  var _args_, arg, err, Type;
+  for (var i$ = 0, length$ = node['arguments'].length; i$ < length$; ++i$) {
+    arg = node['arguments'][i$];
+    walk(arg, scope);
+  }
+  Type = scope.getTypeInScope(node.ctor.data);
+  if (Type) {
+    _args_ = null != node['arguments'] ? node['arguments'].map(function (arg) {
+      return null != arg.annotation ? arg.annotation.dataType : void 0;
+    }) : void 0;
+    if (err = scope.checkAcceptableObject(Type.dataType._constructor_, {
+        _args_: null != _args_ ? _args_ : [],
+        _return_: 'Any'
+      }))
+      return reporter.add_error(node, err);
+  }
+  return node.annotation = { dataType: null != Type ? Type.dataType : void 0 };
+};
+walk_for = function (node, scope) {
+  var dataType, err, nop;
+  walk(node.target, scope);
+  if (null != node.valAssignee)
+    scope.addVar(node.valAssignee.data, null != (null != node.valAssignee && null != node.valAssignee.annotation ? node.valAssignee.annotation.dataType : void 0) ? null != node.valAssignee && null != node.valAssignee.annotation ? node.valAssignee.annotation.dataType : void 0 : 'Any');
+  if (null != node.keyAssignee)
+    scope.addVar(node.keyAssignee.data, null != (null != node.keyAssignee && null != node.keyAssignee.annotation ? node.keyAssignee.annotation.dataType : void 0) ? null != node.keyAssignee && null != node.keyAssignee.annotation ? node.keyAssignee.annotation.dataType : void 0 : 'Any');
+  if (null != node.valAssignee)
+    if (null != (null != node.target.annotation && null != node.target.annotation.dataType ? node.target.annotation.dataType.array : void 0)) {
+      if (err = scope.checkAcceptableObject(node.valAssignee.annotation.dataType, node.target.annotation.dataType.array)) {
+        return reporter.add_error(node, err);
+      }
+    } else if ((null != node.target && null != node.target.annotation ? node.target.annotation.dataType : void 0) instanceof Object) {
+      if (node.target.annotation.dataType instanceof Object) {
+        for (nop in node.target.annotation.dataType) {
+          dataType = node.target.annotation.dataType[nop];
+          if (err = scope.checkAcceptableObject(node.valAssignee.annotation.dataType, dataType))
+            return reporter.add_error(node, err);
+        }
+      }
+    }
+  walk(node.body, scope);
+  node.annotation = null != node.target ? node.target.annotation : void 0;
+  delete scope._vars[null != node.valAssignee ? node.valAssignee.data : void 0];
+  return delete scope._vars[null != node.keyAssignee ? node.keyAssignee.data : void 0];
+};
+walk_classProtoAssignOp = function (node, scope) {
+  var left, right, symbol;
+  left = node.assignee;
+  right = node.expression;
+  symbol = left.data;
+  walk(left, scope);
+  if (right['instanceof'](CS.Function) && scope.getThis(symbol)) {
+    walk_function(right, scope, scope.getThis(symbol).dataType);
+  } else {
+    walk(right, scope);
+  }
+  symbol = left.data;
+  if (null != right.annotation)
+    return scope.addThis(symbol, right.annotation.dataType);
+};
+walk_assignOp = function (node, scope) {
+  var err, index, l, l_type, left, member, pre_registered_annotation, r, right, symbol, T;
+  pre_registered_annotation = node.assignee.annotation;
+  left = node.assignee;
+  right = node.expression;
+  symbol = left.data;
+  walk(left, scope);
+  if (('function' === typeof right['instanceof'] ? right['instanceof'](CS.Function) : void 0) && scope.getVarInScope(symbol)) {
+    walk_function(right, scope, scope.getVarInScope(symbol).dataType);
+  } else if (('function' === typeof right['instanceof'] ? right['instanceof'](CS.Function) : void 0) && pre_registered_annotation) {
+    walk_function(right, scope, left.annotation.dataType);
+  } else {
+    walk(right, scope);
+  }
+  if (left['instanceof'](CS.ArrayInitialiser)) {
+    for (var i$ = 0, length$ = left.members.length; i$ < length$; ++i$) {
+      member = left.members[i$];
+      index = i$;
+      if (!(null != member.data))
+        continue;
+      l = null != left.annotation && null != left.annotation.dataType && null != left.annotation.dataType.array ? left.annotation.dataType.array[index] : void 0;
+      r = null != right.annotation && null != right.annotation.dataType && null != right.annotation.dataType.array ? right.annotation.dataType.array[index] : void 0;
+      if (err = scope.checkAcceptableObject(l, r))
+        reporter.add_error(node, err);
+      if (l) {
+        scope.addVar(member.data, l, true);
+      } else {
+        scope.addVar(member.data, 'Any', false);
+      }
+    }
+  } else if (null != (null != left ? left.members : void 0)) {
+    for (var i$1 = 0, length$1 = left.members.length; i$1 < length$1; ++i$1) {
+      member = left.members[i$1];
+      if (!(null != (null != member.key ? member.key.data : void 0)))
+        continue;
+      if (scope.getVarInScope(member.key.data)) {
+        l_type = scope.getVarInScope(member.key.data).dataType;
+        if (err = scope.checkAcceptableObject(l_type, null != right.annotation && null != right.annotation.dataType ? right.annotation.dataType[member.key.data] : void 0))
+          reporter.add_error(node, err);
+      } else {
+        scope.addVar(member.key.data, 'Any', false);
+      }
+    }
+  } else if (left['instanceof'](CS.MemberAccessOp)) {
+    if (left.expression['instanceof'](CS.This)) {
+      T = scope.getThis(left.memberName);
+      if (null != T)
+        left.annotation = T;
+      if (null != T)
+        if (err = scope.checkAcceptableObject(left.annotation.dataType, right.annotation.dataType)) {
+          reporter.add_error(node, err);
+        }
+    } else if (null != (null != left.annotation ? left.annotation.dataType : void 0) && null != (null != right.annotation ? right.annotation.dataType : void 0)) {
+      if (left.annotation.dataType !== 'Any') {
+        if (err = scope.checkAcceptableObject(left.annotation.dataType, right.annotation.dataType)) {
+          return reporter.add_error(node, err);
+        }
+      }
+    }
+  } else if (left['instanceof'](CS.Identifier)) {
+    if (scope.getVarInScope(symbol) && pre_registered_annotation)
+      return reporter.add_error(node, 'double bind: ' + symbol);
+    if (null != left.annotation.dataType && null != right.annotation)
+      if (err = scope.checkAcceptableObject(left.annotation.dataType, right.annotation.dataType)) {
+        return reporter.add_error(node, err);
+      }
+    if (!pre_registered_annotation && (null != right.annotation ? right.annotation.explicit : void 0)) {
+      scope.addVar(symbol, right.annotation.dataType, true);
+    } else {
+      scope.addVar(symbol, left.annotation.dataType, true);
+    }
+  } else {
+    scope.addVar(symbol, 'Any', false);
+  }
+  console.log('left');
+  console.log(render(left));
+  console.log('right');
+  return console.log(render(right));
+};
+walk_primitives = function (node, scope) {
+  switch (false) {
+  case !node['instanceof'](CS.String):
+    return walk_string(node, scope);
+  case !node['instanceof'](CS.Bool):
+    return walk_bool(node, scope);
+  case !node['instanceof'](CS.Int):
+    return walk_int(node, scope);
+  case !node['instanceof'](CS.Float):
+    return walk_float(node, scope);
+  case !node['instanceof'](CS.Numbers):
+    return walk_numbers(node, scope);
+  }
+};
+walk_string = function (node, scope) {
+  return null != node.annotation ? node.annotation : node.annotation = {
+    dataType: 'String',
+    primitive: true
+  };
+};
+walk_int = function (node, scope) {
+  return null != node.annotation ? node.annotation : node.annotation = {
+    dataType: 'Int',
+    primitive: true
+  };
+};
+walk_float = function (node, scope) {
+  return null != node.annotation ? node.annotation : node.annotation = {
+    dataType: 'Float',
+    primitive: true
+  };
+};
+walk_numbers = function (node, scope) {
+  return null != node.annotation ? node.annotation : node.annotation = {
+    dataType: 'Number',
+    primitive: true
+  };
+};
+walk_bool = function (node, scope) {
+  return null != node.annotation ? node.annotation : node.annotation = {
+    dataType: 'Boolean',
+    primitive: true
+  };
+};
+walk_identifier = function (node, scope) {
+  var Var;
+  if (scope.getVarInScope(node.data)) {
+    Var = scope.getVarInScope(node.data);
+    return node.annotation = {
+      dataType: null != Var ? Var.dataType : void 0,
+      explicit: null != Var ? Var.explicit : void 0
+    };
+  } else {
+    if (null != node.annotation)
+      return node.annotation;
+    else
+      return node.annotation = { dataType: 'Any' };
+  }
+};
+walk_this = function (node, scope) {
+  var dataType, key, val;
+  dataType = {};
+  for (key in scope._this) {
+    val = scope._this[key];
+    dataType[key] = val.dataType;
+  }
+  return null != node.annotation ? node.annotation : node.annotation = { dataType: dataType };
+};
+walk_memberAccess = function (node, scope) {
+  var dataType;
+  if (node['instanceof'](CS.SoakedMemberAccessOp)) {
+    walk(node.expression, scope);
+    dataType = scope.extendTypeLiteral(null != node.expression.annotation ? node.expression.annotation.dataType : void 0);
+    if (null != dataType) {
+      return node.annotation = {
+        dataType: {
+          possibilities: [
+            'Undefined',
+            dataType[node.memberName]
+          ]
+        }
+      };
+    } else {
+      return node.annotation = {
+        dataType: 'Any',
+        explicit: false
+      };
+    }
+  } else if (node['instanceof'](CS.MemberAccessOp)) {
+    walk(node.expression, scope);
+    dataType = scope.extendTypeLiteral(null != node.expression.annotation ? node.expression.annotation.dataType : void 0);
+    if (null != dataType) {
+      return node.annotation = {
+        dataType: dataType[node.memberName],
+        explicit: true
+      };
+    } else {
+      return node.annotation = {
+        dataType: 'Any',
+        explicit: false
+      };
+    }
+  }
+};
+walk_arrayInializer = function (node, scope) {
+  walk(node.members, scope);
+  return null != node.annotation ? node.annotation : node.annotation = {
+    dataType: {
+      array: null != node.members ? node.members.map(function (m) {
+        return null != m.annotation ? m.annotation.dataType : void 0;
+      }) : void 0
+    }
+  };
+};
+walk_range = function (node, scope) {
+  return node.annotation = { dataType: { array: 'Number' } };
+};
+walk_objectInitializer = function (node, scope) {
+  var cache$1, expression, key, nextScope, obj;
+  obj = {};
+  nextScope = new Scope(scope);
+  nextScope.name = 'object';
+  for (var i$ = 0, length$ = node.members.length; i$ < length$; ++i$) {
+    {
+      cache$1 = node.members[i$];
+      expression = cache$1.expression;
+      key = cache$1.key;
+    }
+    if (!('undefined' !== typeof key && null != key))
+      continue;
+    walk(expression, nextScope);
+    obj[key.data] = null != expression.annotation ? expression.annotation.dataType : void 0;
+  }
+  return null != node.annotation ? node.annotation : node.annotation = { dataType: obj };
+};
+walk_class = function (node, scope) {
+  var classScope, cls, constructorScope, fname, index, key, name, param, parent, predef, statement, this_scope, val;
+  classScope = new ClassScope(scope);
+  this_scope = {};
+  if (null != node.nameAssignee ? node.nameAssignee.data : void 0) {
+    if (null != node.parent ? node.parent.data : void 0) {
+      parent = scope.getTypeInScope(node.parent.data);
+      if (parent)
+        for (key in parent.dataType) {
+          val = parent.dataType[key];
+          this_scope[key] = val;
+        }
+    }
+    if (null != (null != node.impl ? node.impl.length : void 0))
+      for (var i$ = 0, length$ = node.impl.length; i$ < length$; ++i$) {
+        name = node.impl[i$];
+        cls = scope.getTypeInScope(name);
+        if (cls)
+          for (key in cls.dataType) {
+            val = cls.dataType[key];
+            this_scope[key] = val;
+          }
+      }
+  }
+  if (null != (null != node.body ? node.body.statements : void 0))
+    for (var i$1 = 0, length$1 = node.body.statements.length; i$1 < length$1; ++i$1) {
+      statement = node.body.statements[i$1];
+      if (!(statement.dataType === 'vardef'))
+        continue;
+      walk_vardef(statement, classScope);
+    }
+  if (null != node.ctor) {
+    constructorScope = new FunctionScope(classScope);
+    constructorScope._this = classScope._this;
+    if (null != node.ctor.expression.parameters)
+      if (constructorScope.getThis('_constructor_')) {
+        predef = constructorScope.getThis('_constructor_').dataType;
+        for (var i$2 = 0, length$2 = node.ctor.expression.parameters.length; i$2 < length$2; ++i$2) {
+          param = node.ctor.expression.parameters[i$2];
+          index = i$2;
+          if (!('undefined' !== typeof param && null != param))
+            continue;
+          walk(param, constructorScope);
+          constructorScope.addVar(param.data, null != (null != predef._args_ ? predef._args_[index] : void 0) ? null != predef._args_ ? predef._args_[index] : void 0 : 'Any');
+        }
+      } else {
+        for (var i$3 = 0, length$3 = node.ctor.expression.parameters.length; i$3 < length$3; ++i$3) {
+          param = node.ctor.expression.parameters[i$3];
+          index = i$3;
+          if (!(null != param))
+            continue;
+          walk(param, constructorScope);
+          constructorScope.addVar(param.data, null != (null != param && null != param.annotation ? param.annotation.dataType : void 0) ? null != param && null != param.annotation ? param.annotation.dataType : void 0 : 'Any');
+        }
+      }
+    if (null != (null != node.ctor.expression.body ? node.ctor.expression.body.statements : void 0))
+      for (var i$4 = 0, length$4 = node.ctor.expression.body.statements.length; i$4 < length$4; ++i$4) {
+        statement = node.ctor.expression.body.statements[i$4];
+        walk(statement, constructorScope);
+      }
+  }
+  if (null != (null != node.body ? node.body.statements : void 0))
+    for (var i$5 = 0, length$5 = node.body.statements.length; i$5 < length$5; ++i$5) {
+      statement = node.body.statements[i$5];
+      if (!(statement.dataType !== 'vardef'))
+        continue;
+      walk(statement, classScope);
+    }
+  if (null != node.nameAssignee ? node.nameAssignee.data : void 0) {
+    for (fname in classScope._this) {
+      val = classScope._this[fname];
+      this_scope[fname] = val.dataType;
+    }
+    return scope.addType(node.nameAssignee.data, this_scope);
+  }
+};
+walk_function = function (node, scope, predef) {
+  var _args_, err, functionScope, index, last_expr, member, param, t;
+  if (null == predef)
+    predef = null;
+  _args_ = null != node.parameters ? node.parameters.map(function (param) {
+    return null != (null != param.annotation ? param.annotation.dataType : void 0) ? null != param.annotation ? param.annotation.dataType : void 0 : 'Any';
+  }) : void 0;
+  node.annotation.dataType._args_ = _args_;
+  functionScope = new Scope(scope);
+  functionScope._name_ = 'function';
+  if (scope instanceof ClassScope)
+    functionScope._this = scope._this;
+  if (null != node.parameters)
+    if (predef) {
+      node.annotation.dataType = predef;
+      for (var i$ = 0, length$ = node.parameters.length; i$ < length$; ++i$) {
+        param = node.parameters[i$];
+        index = i$;
+        if (param.members) {
+          for (var i$1 = 0, length$1 = param.members.length; i$1 < length$1; ++i$1) {
+            member = param.members[i$1];
+            if ((null != member.expression && null != member.expression.expression ? member.expression.expression.raw : void 0) === '@' || (null != member.expression && null != member.expression.expression ? member.expression.expression.raw : void 0) === 'this') {
+              t = functionScope.getThis(member.key.data);
+              if (!(null != (null != t ? t.dataType : void 0)))
+                functionScope.addThis(member.key.data, 'Any');
+            } else if (null != member.key ? member.key.data : void 0) {
+              functionScope.addVar(member.key.data, 'Any');
+            }
+          }
+        } else if ((null != param.expression ? param.expression.raw : void 0) === '@' || (null != param.expression ? param.expression.raw : void 0) === 'this') {
+          t = functionScope.getThis(param.memberName);
+          if (err = scope.checkAcceptableObject(null != predef._args_ ? predef._args_[index] : void 0, null != t ? t.dataType : void 0))
+            reporter.add_error(node, err);
+          if (!(null != (null != t ? t.dataType : void 0)))
+            functionScope.addThis(param.memberName, 'Any');
+        } else {
+          functionScope.addVar(param.data, null != (null != predef._args_ ? predef._args_[index] : void 0) ? null != predef._args_ ? predef._args_[index] : void 0 : 'Any');
+        }
+      }
+    } else {
+      for (var i$2 = 0, length$2 = node.parameters.length; i$2 < length$2; ++i$2) {
+        param = node.parameters[i$2];
+        index = i$2;
+        if (param.members) {
+          for (var i$3 = 0, length$3 = param.members.length; i$3 < length$3; ++i$3) {
+            member = param.members[i$3];
+            if ((null != member.expression && null != member.expression.expression ? member.expression.expression.raw : void 0) === '@' || (null != member.expression && null != member.expression.expression ? member.expression.expression.raw : void 0) === 'this') {
+              t = functionScope.getThis(member.key.data);
+              if (!(null != (null != t ? t.dataType : void 0)))
+                functionScope.addThis(member.key.data, 'Any');
+            } else if (null != member.key ? member.key.data : void 0) {
+              functionScope.addVar(member.key.data, 'Any');
+            }
+          }
+        } else if ((null != param.expression ? param.expression.raw : void 0) === '@' || (null != param.expression ? param.expression.raw : void 0) === 'this') {
+          t = functionScope.getThis(param.memberName);
+          if (!(null != (null != t ? t.dataType : void 0)))
+            functionScope.addThis(param.memberName, 'Any');
+        } else {
+          functionScope.addVar(param.data, null != (null != param && null != param.annotation ? param.annotation.dataType : void 0) ? null != param && null != param.annotation ? param.annotation.dataType : void 0 : 'Any');
+        }
+      }
+    }
+  walk(node.body, functionScope);
+  if ((null != node.annotation && null != node.annotation.dataType ? node.annotation.dataType._return_ : void 0) !== 'Any') {
+    last_expr = (null != node.body && null != node.body.statements ? node.body.statements.length : void 0) ? null != node.body.statements ? node.body.statements[(null != node.body && null != node.body.statements ? node.body.statements.length : void 0) - 1] : void 0 : node.body;
+    if (err = scope.checkAcceptableObject(null != node.annotation ? node.annotation.dataType._return_ : void 0, null != last_expr && null != last_expr.annotation ? last_expr.annotation.dataType : void 0))
+      return reporter.add_error(node, err);
+  } else {
+    last_expr = (null != node.body && null != node.body.statements ? node.body.statements.length : void 0) ? null != node.body.statements ? node.body.statements[(null != node.body && null != node.body.statements ? node.body.statements.length : void 0) - 1] : void 0 : node.body;
+    if (null != node.annotation)
+      return node.annotation.dataType._return_ = null != last_expr && null != last_expr.annotation ? last_expr.annotation.dataType : void 0;
+  }
+};
+walk_functionApplication = function (node, scope) {
+  var _args_, arg, err;
+  for (var i$ = 0, length$ = node['arguments'].length; i$ < length$; ++i$) {
+    arg = node['arguments'][i$];
+    walk(arg, scope);
+  }
+  walk(node['function'], scope);
+  node.annotation = { dataType: null != node['function'].annotation && null != node['function'].annotation.dataType ? node['function'].annotation.dataType._return_ : void 0 };
+  if (node['function'].annotation) {
+    _args_ = null != node['arguments'] ? node['arguments'].map(function (arg) {
+      return null != arg.annotation ? arg.annotation.dataType : void 0;
+    }) : void 0;
+    if (err = scope.checkAcceptableObject(node['function'].annotation.dataType, {
+        _args_: null != _args_ ? _args_ : [],
+        _return_: 'Any'
+      }))
+      return reporter.add_error(node, err);
+  }
+};
+walk = function (node, scope) {
+  var s;
+  console.log('~~~~~~~~~~~~~~~~~~~~~~~~~~~~');
+  console.log('---', null != node ? node.className : void 0, '---', null != node ? node.raw : void 0);
+  switch (false) {
+  case !!(null != node):
+    return;
+  case !(null != node.length):
+    return function (accum$) {
+      for (var i$ = 0, length$ = node.length; i$ < length$; ++i$) {
+        s = node[i$];
+        accum$.push(walk(s, scope));
+      }
+      return accum$;
+    }.call(this, []);
+  case !(node.dataType === 'struct'):
+    return walk_struct(node, scope);
+  case !(node.dataType === 'vardef'):
+    return walk_vardef(node, scope);
+  case !node['instanceof'](CS.Program):
+    return walk_program(node, scope);
+  case !node['instanceof'](CS.Block):
+    return walk_block(node, scope);
+  case !node['instanceof'](CS.Return):
+    return walk_return(node, scope);
+  case !node['instanceof'](CS.NewOp):
+    return walk_newOp(node, scope);
+  case !(node['instanceof'](CS.PlusOp) || node['instanceof'](CS.MultiplyOp) || node['instanceof'](CS.DivideOp) || node['instanceof'](CS.SubtractOp)):
+    return walk_binOp(node, scope);
+  case !node['instanceof'](CS.Switch):
+    return walk_switch(node, scope);
+  case !node['instanceof'](CS.Conditional):
+    return walk_conditional(node, scope);
+  case !(node['instanceof'](CS.ForIn) || node['instanceof'](CS.ForOf)):
+    return walk_for(node, scope);
+  case !node['instanceof'](CS.Primitives):
+    return walk_primitives(node, scope);
+  case !node['instanceof'](CS.This):
+    return walk_this(node, scope);
+  case !node['instanceof'](CS.Identifier):
+    return walk_identifier(node, scope);
+  case !node['instanceof'](CS.ClassProtoAssignOp):
+    return walk_classProtoAssignOp(node, scope);
+  case !node['instanceof'](CS.MemberAccessOps):
+    return walk_memberAccess(node, scope);
+  case !node['instanceof'](CS.ArrayInitialiser):
+    return walk_arrayInializer(node, scope);
+  case !node['instanceof'](CS.Range):
+    return walk_range(node, scope);
+  case !node['instanceof'](CS.ObjectInitialiser):
+    return walk_objectInitializer(node, scope);
+  case !node['instanceof'](CS.Class):
+    return walk_class(node, scope);
+  case !node['instanceof'](CS.Function):
+    return walk_function(node, scope);
+  case !node['instanceof'](CS.FunctionApplication):
+    return walk_functionApplication(node, scope);
+  case !node['instanceof'](CS.AssignOp):
+    return walk_assignOp(node, scope);
+  }
+};
+module.exports = { checkNodes: checkNodes };
diff --git a/lib/types.js b/lib/types.js
new file mode 100644
index 00000000..4f9c60de
--- /dev/null
+++ b/lib/types.js
@@ -0,0 +1,390 @@
+// Generated by CoffeeScript 0.8.5
+var ArrayType, checkAcceptableObject, ClassScope, clone, console, FunctionScope, initializeGlobalTypes, ObjectType, pj, Possibilites, render, reporter, rewrite, Scope, Type, TypeSymbol, VarSymbol;
+console = {
+  log: function () {
+  }
+};
+pj = function () {
+  try {
+    return require('prettyjson');
+  } catch (e$) {
+    return;
+  }
+}.call(this);
+render = function (obj) {
+  if (null != pj)
+    return pj.render(obj);
+};
+cache$ = require('./type-helpers');
+clone = cache$.clone;
+rewrite = cache$.rewrite;
+reporter = require('./reporter');
+Type = function () {
+  function Type() {
+  }
+  return Type;
+}();
+ObjectType = function (super$) {
+  extends$(ObjectType, super$);
+  function ObjectType(param$) {
+    this.dataType = param$;
+  }
+  return ObjectType;
+}(Type);
+ArrayType = function (super$1) {
+  extends$(ArrayType, super$1);
+  function ArrayType(dataType) {
+    this.array = dataType;
+  }
+  return ArrayType;
+}(Type);
+Possibilites = function (super$2) {
+  extends$(Possibilites, super$2);
+  function Possibilites(arr) {
+    var i;
+    if (null == arr)
+      arr = [];
+    for (var i$ = 0, length$ = arr.length; i$ < length$; ++i$) {
+      i = arr[i$];
+      this.push(i);
+    }
+  }
+  return Possibilites;
+}(Array);
+checkAcceptableObject = function (this$) {
+  return function (left, right, scope) {
+    var cur, extended_list, i, key, l_arg, lval, r, results;
+    if (null != (null != left ? left._base_ : void 0) && null != left._templates_)
+      left = left._base_;
+    console.log('checkAcceptableObject /', left, right);
+    if (null != (null != right ? right.possibilities : void 0)) {
+      results = function (accum$) {
+        for (var i$ = 0, length$ = right.possibilities.length; i$ < length$; ++i$) {
+          r = right.possibilities[i$];
+          accum$.push(checkAcceptableObject(left, r, scope));
+        }
+        return accum$;
+      }.call(this$, []);
+      return results.every(function (i) {
+        return !i;
+      }) ? false : results.filter(function (i) {
+        return i;
+      }).join('\n');
+    }
+    if (left === 'Any')
+      return false;
+    if (null != left ? left._args_ : void 0) {
+      if (left === void 0 || left === 'Any')
+        return;
+      if (null != left._args_)
+        left._args_;
+      else
+        left._args_ = [];
+      results = function (accum$1) {
+        for (var i$1 = 0, length$1 = left._args_.length; i$1 < length$1; ++i$1) {
+          l_arg = left._args_[i$1];
+          i = i$1;
+          accum$1.push(checkAcceptableObject(l_arg, right._args_[i], scope));
+        }
+        return accum$1;
+      }.call(this$, []);
+      return results.every(function (i) {
+        return !i;
+      }) ? false : results.filter(function (i) {
+        return i;
+      }).join('\n');
+      if (right._return_ !== 'Any')
+        return checkAcceptableObject(left._return_, right._return_, scope);
+      return false;
+    }
+    if (null != (null != left ? left.array : void 0)) {
+      if (right.array instanceof Array) {
+        results = function (accum$2) {
+          for (var i$2 = 0, length$2 = right.array.length; i$2 < length$2; ++i$2) {
+            r = right.array[i$2];
+            accum$2.push(checkAcceptableObject(left.array, r, scope));
+          }
+          return accum$2;
+        }.call(this$, []);
+        return results.every(function (i) {
+          return !i;
+        }) ? false : results.filter(function (i) {
+          return i;
+        }).join('\n');
+      } else {
+        return checkAcceptableObject(left.array, right.array, scope);
+      }
+    } else if (null != (null != right ? right.array : void 0)) {
+      if (left === 'Array' || left === 'Any' || left === void 0) {
+        return false;
+      } else {
+        return 'object deep equal mismatch ' + JSON.stringify(left) + ', ' + JSON.stringify(right);
+      }
+    } else if (typeof left === 'string' && typeof right === 'string') {
+      cur = scope.getTypeInScope(left);
+      extended_list = [left];
+      while (cur._extends_) {
+        extended_list.push(cur._extends_);
+        cur = scope.getTypeInScope(cur._extends_);
+      }
+      if (left === 'Any' || right === 'Any' || in$(right, extended_list)) {
+        return false;
+      } else {
+        return 'object deep equal mismatch ' + JSON.stringify(left) + ', ' + JSON.stringify(right);
+      }
+    } else if (typeof left === 'object' && typeof right === 'object') {
+      results = function (accum$3) {
+        for (key in left) {
+          lval = left[key];
+          accum$3.push(right[key] === void 0 && ('undefined' !== typeof lval && null != lval) && !(key === '_return_' || key === 'type' || key === 'possibilities') ? "'" + key + "' is not defined on right" : checkAcceptableObject(lval, right[key], scope));
+        }
+        return accum$3;
+      }.call(this$, []);
+      return results.every(function (i) {
+        return !i;
+      }) ? false : results.filter(function (i) {
+        return i;
+      }).join('\n');
+    } else if (left === void 0 || right === void 0) {
+      return false;
+    } else {
+      return 'object deep equal mismatch ' + JSON.stringify(left) + ', ' + JSON.stringify(right);
+    }
+  };
+}(this);
+initializeGlobalTypes = function (node) {
+  node.addTypeObject('String', new TypeSymbol({ dataType: 'String' }));
+  node.addTypeObject('Number', new TypeSymbol({
+    dataType: 'Number',
+    _extends_: 'Float'
+  }));
+  node.addTypeObject('Int', new TypeSymbol({ dataType: 'Int' }));
+  node.addTypeObject('Float', new TypeSymbol({
+    dataType: 'Float',
+    _extends_: 'Int'
+  }));
+  node.addTypeObject('Boolean', new TypeSymbol({ dataType: 'Boolean' }));
+  node.addTypeObject('Object', new TypeSymbol({ dataType: 'Object' }));
+  node.addTypeObject('Array', new TypeSymbol({ dataType: 'Array' }));
+  node.addTypeObject('Undefined', new TypeSymbol({ dataType: 'Undefined' }));
+  return node.addTypeObject('Any', new TypeSymbol({ dataType: 'Any' }));
+};
+VarSymbol = function () {
+  function VarSymbol(param$) {
+    var cache$1;
+    {
+      cache$1 = param$;
+      this.dataType = cache$1.dataType;
+      this.explicit = cache$1.explicit;
+    }
+    if (null != this.explicit)
+      this.explicit;
+    else
+      this.explicit = false;
+  }
+  return VarSymbol;
+}();
+TypeSymbol = function () {
+  function TypeSymbol(param$) {
+    var cache$1;
+    {
+      cache$1 = param$;
+      this.dataType = cache$1.dataType;
+      this['instanceof'] = cache$1['instanceof'];
+      this._templates_ = cache$1._templates_;
+      this._extends_ = cache$1._extends_;
+    }
+  }
+  return TypeSymbol;
+}();
+Scope = function () {
+  function Scope(param$) {
+    var instance$;
+    instance$ = this;
+    this.extendTypeLiteral = function (a) {
+      return Scope.prototype.extendTypeLiteral.apply(instance$, arguments);
+    };
+    if (null == param$)
+      param$ = null;
+    this.parent = param$;
+    if (null != this.parent)
+      this.parent.nodes.push(this);
+    this.name = '';
+    this.nodes = [];
+    this._vars = {};
+    this._types = {};
+    this._this = {};
+    this._returnables = [];
+  }
+  Scope.prototype.addReturnable = function (symbol, dataType) {
+    return this._returnables.push(dataType);
+  };
+  Scope.prototype.getReturnables = function () {
+    return this._returnables;
+  };
+  Scope.prototype.addType = function (symbol, dataType, _templates_) {
+    return this._types[symbol] = new TypeSymbol({
+      dataType: dataType,
+      _templates_: _templates_
+    });
+  };
+  Scope.prototype.addTypeObject = function (symbol, type_object) {
+    return this._types[symbol] = type_object;
+  };
+  Scope.prototype.getType = function (symbol) {
+    return this._types[symbol];
+  };
+  Scope.prototype.getTypeInScope = function (symbol) {
+    return this.getType(symbol) || (null != this.parent ? this.parent.getTypeInScope(symbol) : void 0) || void 0;
+  };
+  Scope.prototype.addThis = function (symbol, dataType) {
+    var n, obj, replacer, rewrite_to, T, t;
+    if (null != (null != dataType ? dataType._base_ : void 0)) {
+      T = this.getType(dataType._base_);
+      if (!T)
+        return;
+      obj = clone(T.dataType);
+      if (T._templates_) {
+        rewrite_to = dataType._templates_;
+        replacer = {};
+        for (var i$ = 0, length$ = T._templates_.length; i$ < length$; ++i$) {
+          t = T._templates_[i$];
+          n = i$;
+          replacer[t] = rewrite_to[n];
+        }
+        rewrite(obj, replacer);
+      }
+      return this._this[symbol] = new VarSymbol({ dataType: obj });
+    } else {
+      return this._this[symbol] = new VarSymbol({ dataType: dataType });
+    }
+  };
+  Scope.prototype.getThis = function (symbol) {
+    return this._this[symbol];
+  };
+  Scope.prototype.addVar = function (symbol, dataType, explicit) {
+    var n, obj, replacer, rewrite_to, T, t;
+    if (null != (null != dataType ? dataType._base_ : void 0)) {
+      T = this.getType(dataType._base_);
+      if (!T)
+        return;
+      obj = clone(T.dataType);
+      if (T._templates_) {
+        rewrite_to = dataType._templates_;
+        replacer = {};
+        for (var i$ = 0, length$ = T._templates_.length; i$ < length$; ++i$) {
+          t = T._templates_[i$];
+          n = i$;
+          replacer[t] = rewrite_to[n];
+        }
+        rewrite(obj, replacer);
+      }
+      return this._vars[symbol] = new VarSymbol({
+        dataType: obj,
+        explicit: explicit
+      });
+    } else {
+      return this._vars[symbol] = new VarSymbol({
+        dataType: dataType,
+        explicit: explicit
+      });
+    }
+  };
+  Scope.prototype.getVar = function (symbol) {
+    return this._vars[symbol];
+  };
+  Scope.prototype.getVarInScope = function (symbol) {
+    return this.getVar(symbol) || (null != this.parent ? this.parent.getVarInScope(symbol) : void 0) || void 0;
+  };
+  Scope.prototype.isImplicitVarInScope = function (symbol) {
+    return this.isImplicitVar(symbol) || (null != this.parent ? this.parent.isImplicitVarInScope(symbol) : void 0) || void 0;
+  };
+  Scope.prototype.extendTypeLiteral = function (node) {
+    var dataType, i, key, ret, val;
+    switch (typeof node) {
+    case 'object':
+      if (node instanceof Array) {
+        return function (accum$) {
+          for (var i$ = 0, length$ = node.length; i$ < length$; ++i$) {
+            i = node[i$];
+            accum$.push(this.extendTypeLiteral(i));
+          }
+          return accum$;
+        }.call(this, []);
+      } else {
+        ret = {};
+        for (key in node) {
+          val = node[key];
+          ret[key] = this.extendTypeLiteral(val);
+        }
+        return ret;
+      }
+    case 'string':
+      Type = this.getTypeInScope(node);
+      dataType = null != Type ? Type.dataType : void 0;
+      switch (typeof dataType) {
+      case 'object':
+        return this.extendTypeLiteral(dataType);
+      case 'string':
+        return dataType;
+      }
+    }
+  };
+  Scope.prototype.checkAcceptableObject = function (left, right) {
+    var l, r;
+    l = this.extendTypeLiteral(left);
+    r = this.extendTypeLiteral(right);
+    return checkAcceptableObject(l, r, this);
+  };
+  return Scope;
+}();
+ClassScope = function (super$3) {
+  extends$(ClassScope, super$3);
+  function ClassScope() {
+    super$3.apply(this, arguments);
+  }
+  void 0;
+  return ClassScope;
+}(Scope);
+FunctionScope = function (super$4) {
+  extends$(FunctionScope, super$4);
+  function FunctionScope() {
+    super$4.apply(this, arguments);
+  }
+  void 0;
+  return FunctionScope;
+}(Scope);
+module.exports = {
+  checkAcceptableObject: checkAcceptableObject,
+  initializeGlobalTypes: initializeGlobalTypes,
+  VarSymbol: VarSymbol,
+  TypeSymbol: TypeSymbol,
+  Scope: Scope,
+  ClassScope: ClassScope,
+  FunctionScope: FunctionScope,
+  ArrayType: ArrayType,
+  ObjectType: ObjectType,
+  Type: Type,
+  Possibilites: Possibilites
+};
+function isOwn$(o, p) {
+  return {}.hasOwnProperty.call(o, p);
+}
+function extends$(child, parent) {
+  for (var key in parent)
+    if (isOwn$(parent, key))
+      child[key] = parent[key];
+  function ctor() {
+    this.constructor = child;
+  }
+  ctor.prototype = parent.prototype;
+  child.prototype = new ctor;
+  child.__super__ = parent.prototype;
+  return child;
+}
+function in$(member, list) {
+  for (var i = 0, length = list.length; i < length; ++i)
+    if (i in list && list[i] === member)
+      return true;
+  return false;
+}
diff --git a/package.json b/package.json
index f17556ad..d3c43627 100644
--- a/package.json
+++ b/package.json
@@ -33,12 +33,13 @@
   },
   "dependencies": {
     "StringScanner": "~0.0.3",
+    "debug": "^2.2.0",
     "nopt": "~2.1.2"
   },
   "optionalDependencies": {
+    "escodegen": "git://github.com/estools/escodegen#2e90c2b95274aae27910c28e086676b104b7ded4",
     "esmangle": "~1.0.0",
     "source-map": "0.1.x",
-    "escodegen": "~1.2.0",
     "cscodegen": "git+https://github.com/michaelficarra/cscodegen.git#73fd7202ac086c26f18c9d56f025b18b3c6f5383"
   },
   "engines": {
diff --git a/src/cli.coffee b/src/cli.coffee
index a5c63a4e..0529cefc 100644
--- a/src/cli.coffee
+++ b/src/cli.coffee
@@ -33,7 +33,7 @@ optAliases =
   v: '--version'
   w: '--watch'
 
-option 'parse', 'compile', 'optimise', 'debug', 'literate', 'raw', 'version', 'help'
+option 'parse', 'compile', 'optimise', 'debug', 'literate', 'raw', 'version', 'help', 'target-es6'
 parameter 'cli', 'input', 'nodejs', 'output', 'watch'
 
 if escodegen?
@@ -55,6 +55,7 @@ options.optimise ?= yes
 
 options.sourceMap = options['source-map']
 options.sourceMapFile = options['source-map-file']
+options.targetES6 = options['target-es6']
 
 
 # input validation
@@ -209,6 +210,7 @@ else
         raw: options.raw or options.sourceMap or options.sourceMapFile or options.eval
         inputSource: inputSource
         literate: options.literate
+        targetES6: options.targetES6
     catch e
       console.error e.message
       process.exit 1
@@ -245,7 +247,7 @@ else
         process.exit 1
 
     # compile
-    jsAST = CoffeeScript.compile result, bare: options.bare
+    jsAST = CoffeeScript.compile result, bare: options.bare, targetES6: options.targetES6
 
     # --compile
     if options.compile
diff --git a/src/compiler.coffee b/src/compiler.coffee
index d1e08ac4..7f3d0e28 100644
--- a/src/compiler.coffee
+++ b/src/compiler.coffee
@@ -1,7 +1,9 @@
-{any, concat, concatMap, difference, divMod, foldl, foldl1, intersect, map, nub, owns, partition, span, union} = require './functional-helpers'
+{find, any, all, concat, concatMap, difference, divMod, foldl, foldl1, intersect, map, nub, owns, partition, span, union, zip} = require './functional-helpers'
 {beingDeclared, usedAsExpression, envEnrichments} = require './helpers'
 CS = require './nodes'
 JS = require './js-nodes'
+debugES6 = require('debug')('es6')
+
 exports = module?.exports ? this
 
 # TODO: this whole file could use a general cleanup
@@ -34,7 +36,7 @@ mapChildNodes = (node, mapper, reducer, identity, opts={}) ->
   opts.listIdentity ?= identity
   foldl identity, (for childName in node.childNodes when node[childName]?
     if childName in node.listMembers
-      foldl opts.listIdentity, (mapper(child, childName) for child in node[childName] when child?), opts.listReducer
+      foldl opts.listIdentity, (mapper(child, childName) for child in node[childName]), opts.listReducer
     else
       mapper(node[childName], childName)
   ), reducer
@@ -45,6 +47,8 @@ genSym = do ->
 
 
 stmt = (e) ->
+  # TODO: move these special cases into type-specific
+  # `becomeStatement` methods.
   return e unless e?
   if e.isStatement then e
   else if e.instanceof JS.SequenceExpression
@@ -56,6 +60,8 @@ stmt = (e) ->
   else if e.instanceof JS.ConditionalExpression
     # TODO: drop either the consequent or the alternate if they don't have side effects
     new JS.IfStatement (expr e.test), (stmt e.consequent), stmt e.alternate
+  else if typeof e.becomeStatement == 'function'
+    e.becomeStatement()
   else new JS.ExpressionStatement e
 
 expr = (s) ->
@@ -69,12 +75,12 @@ expr = (s) ->
   else if s.instanceof JS.ExpressionStatement
     s.expression
   else if s.instanceof JS.ThrowStatement
-    new JS.CallExpression (new JS.FunctionExpression null, [], forceBlock s), []
+    new JS.CallExpression (funcExpr body: (forceBlock s)), []
   else if s.instanceof JS.IfStatement
     consequent = expr (s.consequent ? helpers.undef())
     alternate = expr (s.alternate ? helpers.undef())
     new JS.ConditionalExpression s.test, consequent, alternate
-  else if s.instanceof JS.ForInStatement, JS.ForStatement, JS.WhileStatement
+  else if s.instanceof JS.ForInStatement, JS.ForOfStatement, JS.ForStatement, JS.WhileStatement
     accum = genSym 'accum'
     # TODO: remove accidental mutation like this in these helpers
     push = (x) -> stmt new JS.CallExpression (memberAccess accum, 'push'), [x]
@@ -87,19 +93,30 @@ expr = (s) ->
     else
       s.body.body.push push helpers.undef()
     block = new JS.BlockStatement [s, new JS.ReturnStatement accum]
-    iife = new JS.FunctionExpression null, [accum], block
+    iife = funcExpr params: [accum], body: block
     new JS.CallExpression (memberAccess iife.g(), 'call'), [new JS.ThisExpression, new JS.ArrayExpression []]
   else if s.instanceof JS.SwitchStatement, JS.TryStatement
     block = new JS.BlockStatement [makeReturn s]
-    iife = new JS.FunctionExpression null, [], block
+    iife = funcExpr body: block
     new JS.CallExpression (memberAccess iife.g(), 'call'), [new JS.ThisExpression]
+  else if typeof s.becomeExpression == 'function'
+    s.becomeExpression()
   else
     # TODO: comprehensive
     throw new Error "expr: Cannot use a #{s.type} as a value"
 
-isScopeBoundary = (node) ->
+# When looking downward, it's up to us to control the scope
+# boundaries, and we want them to stop only at user-created functions,
+# not compiler-generated functions.
+isDownwardScopeBoundary = (node) ->
   (node.instanceof JS.FunctionExpression, JS.FunctionDeclaration) and not node.generated
 
+# When looking upward for scope boundaries, we need to respect the
+# real Javascript scope boundaries because our declarations will not
+# escape even compiler-generated functions.
+isUpwardScopeBoundary = (node) ->
+  node.instanceof JS.FunctionExpression, JS.FunctionDeclaration
+
 makeReturn = (node) ->
   return new JS.ReturnStatement unless node?
   if node.instanceof JS.BlockStatement
@@ -123,30 +140,40 @@ makeReturn = (node) ->
   else if (node.instanceof JS.UnaryExpression) and node.operator is 'void' then new JS.ReturnStatement
   else new JS.ReturnStatement expr node
 
-
-generateMutatingWalker = (fn) -> (node, args...) ->
-  mapper = (child, nameInParent) -> [nameInParent, fn.apply(child, args)]
+generateWalker = (makeIdentity) -> (fn) -> (node, args...) ->
+  mapper = (child, nameInParent) -> [nameInParent, (if child? then fn.apply(child, args) else child)]
   reducer = (parent, [name, newChild]) -> parent[name] = newChild; parent
-  mapChildNodes node, mapper, reducer, node, {
+  identity = makeIdentity(node)
+  mapChildNodes node, mapper, reducer, identity, {
     listReducer: ([_, accum],[name, newChild]) -> [name, accum.concat(newChild) ]
     listIdentity: [null, []]
   }
 
+generateMutatingWalker = generateWalker (node) -> node
+generateCopyingWalker = generateWalker (node) -> node.shallowCopy()
+
+declaredIdentifiers = (node) ->
+  return [] unless node?
+  if node.instanceof JS.Identifier then [node.name]
+  else if node.instanceof JS.MemberExpression then []
+  else mapChildNodes node, declaredIdentifiers, ((a,b) -> a.concat(b)), []
+
 declarationsNeeded = (node) ->
   return [] unless node?
-  if (node.instanceof JS.AssignmentExpression) and node.operator is '=' and node.left.instanceof JS.Identifier then [node.left.name]
-  else if (node.instanceof JS.ForInStatement) and node.left.instanceof JS.Identifier then [node.left.name]
-  else []
+  if ((node.instanceof JS.AssignmentExpression) and node.operator is '=') or (node.instanceof JS.ForInStatement) or (node.instanceof JS.ForOfStatement)
+    declaredIdentifiers(node.left)
+  else
+    []
 
 declarationsNeededRecursive = (node) ->
   return [] unless node?
-  if isScopeBoundary(node) then []
+  if isDownwardScopeBoundary(node) then []
   else union (declarationsNeeded node), mapChildNodes(node, declarationsNeededRecursive, ((a,b)->a.concat(b)), [])
 
 variableDeclarations = (node) ->
   return [] unless node?
   if node.instanceof JS.FunctionDeclaration then [node.id]
-  else if isScopeBoundary(node) then []
+  else if isUpwardScopeBoundary(node) then []
   else if node.instanceof JS.VariableDeclarator then [node.id]
   else mapChildNodes(node, variableDeclarations, ((a,b)->a.concat(b)), [])
 
@@ -155,6 +182,8 @@ collectIdentifiers = (node) -> nub switch
   when node.instanceof JS.Identifier then [node.name]
   when (node.instanceof JS.MemberExpression) and not node.computed
     collectIdentifiers node.object
+  when node.instanceof JS.ObjectPattern
+    map(node.properties, (p) -> collectIdentifiers(p.value)).reduce(((a,b) -> a.concat(b)), [])
   else mapChildNodes node, collectIdentifiers, ((a,b)->a.concat(b)), []
 
 # TODO: something like Optimiser.mayHaveSideEffects
@@ -194,12 +223,40 @@ dynamicMemberAccess = (e, index) ->
   then memberAccess e, index.value
   else new JS.MemberExpression yes, (expr e), expr index
 
+es6AssignmentPattern = (assignee) ->
+  if assignee instanceof JS.ArrayExpression
+    elements = for elt, index in assignee.elements
+      if elt instanceof JS.Identifier
+        elt
+      else if elt.rest
+        if index == assignee.elements.length - 1
+          new JS.RestElement elt.expression
+      else
+        es6AssignmentPattern(elt)
+    if all(elements, (elt) -> elt?) and elements.length > 0
+      new JS.ArrayPattern(elements)
+  else if assignee instanceof JS.ObjectExpression
+    props = assignee.properties.map (p) ->
+      if p.value instanceof JS.Identifier
+        if p.value.name == p.key.name
+          p.shorthand = true
+        p
+      else if (pattern = es6AssignmentPattern p.value)
+        new JS.Property p.key, pattern
+    if all(props, (elt) -> elt?) and props.length > 0
+      new JS.ObjectPattern props
+
+
 # TODO: rewrite this whole thing using the CS AST nodes
-assignment = (assignee, expression, valueUsed = no) ->
+assignment = (assignee, expression, options, valueUsed = no) ->
   assignments = []
   expression = expr expression
   switch
     when assignee.rest then # do nothing for right now
+
+    when options.targetES6 and (es6Pattern = es6AssignmentPattern(assignee))
+      assignments.push new JS.AssignmentExpression '=', es6Pattern, expression
+
     when assignee.instanceof JS.ArrayExpression
       e = expression
       # TODO: only cache expression when it needs it
@@ -212,7 +269,7 @@ assignment = (assignee, expression, valueUsed = no) ->
 
       for m, i in elements
         break if m.rest
-        assignments.push assignment m, (dynamicMemberAccess e, new JS.Literal i), valueUsed
+        assignments.push assignment m, (dynamicMemberAccess e, new JS.Literal i), options, valueUsed
 
       if elements.length > 0
         # TODO: see if this logic can be combined with rest-parameter handling
@@ -251,7 +308,7 @@ assignment = (assignee, expression, valueUsed = no) ->
 
       for m in assignee.properties
         propName = if m.key.instanceof JS.Identifier then new JS.Literal m.key.name else m.key
-        assignments.push assignment m.value, (dynamicMemberAccess e, propName), valueUsed
+        assignments.push assignment m.value, (dynamicMemberAccess e, propName), options, valueUsed
 
     when assignee.instanceof JS.Identifier, JS.GenSym, JS.MemberExpression
       assignments.push new JS.AssignmentExpression '=', assignee, expr expression
@@ -317,26 +374,46 @@ generateSoak = do ->
     new CS.Conditional (foldl1 tests, (memo, t) -> new CS.LogicalAndOp memo, t), e
 
 
+baseExtends = (myName, copyClassProperties) ->
+  protoAccess = (e) -> memberAccess e, 'prototype'
+  child = new JS.Identifier 'child'
+  parent = new JS.Identifier 'parent'
+  ctor = new JS.Identifier 'ctor'
+
+  block = [
+    copyClassProperties(parent, child)
+    funcDecl(id: ctor , body: new JS.BlockStatement [
+      stmt new JS.AssignmentExpression '=', (memberAccess new JS.ThisExpression, 'constructor'), child
+    ])
+    new JS.AssignmentExpression '=', (protoAccess ctor), protoAccess parent
+    new JS.AssignmentExpression '=', (protoAccess child), new JS.NewExpression ctor, []
+    new JS.AssignmentExpression '=', (memberAccess child, '__super__'), protoAccess parent
+    new JS.ReturnStatement child
+  ]
+  funcDecl(id: helperNames[myName], params: [child, parent], body: (new JS.BlockStatement map block, stmt))
+
 helperNames = {}
 helpers =
   extends: ->
-    protoAccess = (e) -> memberAccess e, 'prototype'
-    child = new JS.Identifier 'child'
-    parent = new JS.Identifier 'parent'
-    ctor = new JS.Identifier 'ctor'
     key = new JS.Identifier 'key'
-    block = [
+    copyClassProperties = (parent, child) ->
       new JS.ForInStatement (new JS.VariableDeclaration 'var', [new JS.VariableDeclarator key, null]), parent, new JS.IfStatement (helpers.isOwn parent, key), f = # TODO: figure out how we can allow this
         stmt new JS.AssignmentExpression '=', (new JS.MemberExpression yes, child, key), new JS.MemberExpression yes, parent, key
-      new JS.FunctionDeclaration ctor, [], new JS.BlockStatement [
-        stmt new JS.AssignmentExpression '=', (memberAccess new JS.ThisExpression, 'constructor'), child
-      ]
-      new JS.AssignmentExpression '=', (protoAccess ctor), protoAccess parent
-      new JS.AssignmentExpression '=', (protoAccess child), new JS.NewExpression ctor, []
-      new JS.AssignmentExpression '=', (memberAccess child, '__super__'), protoAccess parent
-      new JS.ReturnStatement child
-    ]
-    new JS.FunctionDeclaration helperNames.extends, [child, parent], new JS.BlockStatement map block, stmt
+    baseExtends('extends', copyClassProperties)
+  extendsES6: ->
+    # This version of the extends helper makes a CoffeeScript-style
+    # class able to extend a real ES6 class. The usual `extends`
+    # helper doesn't work because the properties we're trying to copy
+    # are non-enumerable.
+    copyClassProperties = (parent, child) ->
+      propertyNames = new JS.CallExpression (memberAccess new JS.Identifier('Object'), 'getOwnPropertyNames'), [parent]
+      key = new JS.Identifier 'key'
+      copyKey = new JS.AssignmentExpression('=', (new JS.MemberExpression yes, child, key), (new JS.MemberExpression yes, parent, key))
+      condition = ['callee', 'caller', 'arguments'].map((forbidden) -> new JS.BinaryExpression('!==', key, new JS.Literal(forbidden))).reduce (a,b) -> new JS.BinaryExpression('&&', a, b)
+      conditional = new JS.IfStatement condition, forceBlock copyKey
+      func = funcExpr(params: [key], body: forceBlock conditional)
+      new JS.CallExpression (memberAccess propertyNames, 'forEach'), [func]
+    baseExtends('extendsES6', copyClassProperties)
   construct: ->
     child = new JS.Identifier 'child'
     ctor = new JS.Identifier 'ctor'
@@ -345,7 +422,7 @@ helpers =
     result = new JS.Identifier 'result'
     block = [
       new JS.VariableDeclaration 'var', [
-        new JS.VariableDeclarator fn, new JS.FunctionExpression null, [], new JS.BlockStatement []
+        new JS.VariableDeclarator fn, (funcExpr body: (new JS.BlockStatement []))
       ]
       new JS.AssignmentExpression '=', (memberAccess fn, 'prototype'), memberAccess ctor, 'prototype'
       new JS.VariableDeclaration 'var', [
@@ -354,12 +431,12 @@ helpers =
       ]
       new JS.ReturnStatement new JS.ConditionalExpression (new JS.BinaryExpression '===', result, new JS.CallExpression (new JS.Identifier 'Object'), [result]), result, child
     ]
-    new JS.FunctionDeclaration helperNames.construct, [ctor, args], new JS.BlockStatement map block, stmt
+    funcDecl(id: helperNames.construct, params: [ctor, args], body: (new JS.BlockStatement map block, stmt))
   isOwn: ->
     hop = memberAccess (new JS.ObjectExpression []), 'hasOwnProperty'
     params = args = [(new JS.Identifier 'o'), new JS.Identifier 'p']
     functionBody = [new JS.CallExpression (memberAccess hop, 'call'), args]
-    new JS.FunctionDeclaration helperNames.isOwn, params, makeReturn new JS.BlockStatement map functionBody, stmt
+    funcDecl(id: helperNames.isOwn, params: params, body: (makeReturn new JS.BlockStatement map functionBody, stmt))
   in: ->
     member = new JS.Identifier 'member'
     list = new JS.Identifier 'list'
@@ -374,7 +451,32 @@ helpers =
       new JS.ForStatement varDeclaration, (new JS.BinaryExpression '<', i, length), (new JS.UpdateExpression '++', yes, i), loopBody
       new JS.Literal no
     ]
-    new JS.FunctionDeclaration helperNames.in, [member, list], makeReturn new JS.BlockStatement map functionBody, stmt
+    funcDecl(id: helperNames.in, params: [member, list], body: (makeReturn new JS.BlockStatement map functionBody, stmt))
+  range: ->
+    first = new JS.Identifier('first')
+    last = new JS.Identifier('last')
+    step = new JS.Identifier('step')
+    isInclusive = new JS.Identifier('isInclusive')
+    i = new JS.Identifier('i')
+    init = new JS.VariableDeclaration 'let', [ new JS.VariableDeclarator i, first ]
+    test = new JS.ConditionalExpression(isInclusive, (new JS.BinaryExpression '<=', i, last), (new JS.BinaryExpression '<', i, last))
+    update = new JS.AssignmentExpression '=', i, new JS.BinaryExpression '+', i, step
+    body = [
+      new JS.ForStatement init, test, update, new JS.BlockStatement [stmt new JS.YieldExpression i]
+    ]
+    fn = funcDecl(id: helperNames.range, params: [first, last, step, isInclusive], defaults: [null, null, new JS.Literal(1), new JS.Literal(false)], body: new JS.BlockStatement map body, stmt)
+    fn.generator = true
+    fn
+
+  inclusiveRange: ->
+    first = new JS.Identifier('first')
+    last = new JS.Identifier('last')
+    step = new JS.Identifier('step')
+    body = [
+      makeReturn helpers.range first, last, step, new JS.Literal(true)
+    ]
+    funcDecl(id: helperNames.inclusiveRange, params: [first, last, step], defaults: [null, null, new JS.Literal(1)], body: new JS.BlockStatement body )
+
 
 enabledHelpers = []
 for own h, fn of helpers
@@ -391,7 +493,156 @@ inlineHelpers =
 for own h, fn of inlineHelpers
   helpers[h] = fn
 
+findES6Methods = (classIdentifier, ctor, isDerivedClass, body) ->
+  methods = []
+  properties = []
+  unmatched = []
+  foundConstructor = false
+
+  methodIdentifier = (expression) ->
+    prop = expression.left.property
+    if prop instanceof JS.Identifier
+      new JS.Identifier(prop.name)
+    else if prop instanceof JS.Literal
+      # ES6 allows method names that are the same as reserved keywords
+      new JS.Identifier(prop.value)
+
+  rewriteSuper = generateCopyingWalker ->
+    if isDownwardScopeBoundary(this) then this
+    else if @toES6Super then @toES6Super()
+    else rewriteSuper this
+
+  if ctor
+    ctor = rewriteSuper(ctor)
+    if (safeCtorBody = es6SafeConstructor(isDerivedClass, ctor.body))
+      methods.push new JS.MethodDefinition(new JS.Identifier('constructor'), funcExpr(params: ctor.params, defaults: ctor.defaults, rest: ctor.rest, body: safeCtorBody))
+    else
+      debugES6 "#{describeClass classIdentifier}'s constructor does not follow the ES6 rules for super."
+      unmatched.push ctor
+
+  for statement in body.body
+
+    if (statement instanceof JS.FunctionDeclaration) and not foundConstructor
+      # The first function declaration is the constructor inserted by
+      # the CS.Class rule, but it's not direclty usable because it
+      # obscures that there may be an external constructor. We rely on
+      # our ctor argument instead.
+      foundConstructor = true
+      continue
+
+    expression = statement.expression
+    if (expression instanceof JS.AssignmentExpression) and (expression.operator == '=') and (expression.left instanceof JS.MemberExpression)
+
+      property = expression.left.property
+
+      propertyName = if property instanceof JS.Identifier
+        property.name
+      else if property instanceof JS.Literal
+        property.value
+
+      object = expression.left.object
+      methodBody = if expression.right instanceof JS.FunctionExpression
+        funcExpr(id: expression.right.id, params: expression.right.params, defaults: expression.right.defaults, rest: expression.right.rest, body: rewriteSuper(expression.right.body))
+
+      if (object instanceof JS.MemberExpression) and (object.property.name == 'prototype') and (object.object.instanceof JS.ThisExpression)
+        if methodBody
+          methods.push(new JS.MethodDefinition(new JS.Identifier(propertyName), methodBody))
+        else
+          properties.push new JS.AssignmentExpression('=', memberAccess(memberAccess(classIdentifier, 'prototype'), propertyName), expression.right)
+      else if object instanceof JS.ThisExpression
+        if methodBody
+          m = new JS.MethodDefinition(new JS.Identifier(propertyName), methodBody)
+          m.static = true
+          methods.push(m)
+        else
+          properties.push new JS.AssignmentExpression('=', memberAccess(classIdentifier, propertyName), expression.right)
+    else
+      unmatched.push(statement)
+
+  rewriteThis = generateCopyingWalker ->
+    if @instanceof JS.ThisExpression then classIdentifier
+    else if isDownwardScopeBoundary(this) then this
+    else rewriteThis this
+
+  properties = map properties, rewriteThis
+
+  { methods, properties, unmatched }
+
+
+es6SafeConstructor = (isDerivedClass, block) ->
+  return block unless isDerivedClass
+
+  either = (a,b) -> a or b
+
+  referencesThis = (node) ->
+    if node? and node instanceof JS.ThisExpression then true
+    else mapChildNodes(node, referencesThis, either, false)
+
+  callsSuper = (node) ->
+    if node? and node instanceof JS.CallExpression and \
+    node.callee instanceof JS.Identifier and \
+    node.callee.name == 'super'
+      true
+    else
+      mapChildNodes(node, callsSuper, either, false)
+
+  sawThis = calledSuper = false
+  for statement in block.body
+    sawThis = sawThis or referencesThis(statement)
+    if callsSuper(statement)
+      if sawThis
+        return null
+      else
+        calledSuper = true
+  if not calledSuper
+    block = new JS.BlockStatement(block.body.slice())
+    block.body.unshift(stmt new JS.CallExpression(new JS.Identifier('super'), []))
+  block
+
+es6SafeArrowExpression = (parameters, defaults, rest, block) ->
+  # A coffeescript bound function is *almost* the same as an ES6 arrow
+  # function, but they have a different meaning for the "arguments"
+  # keyword. In ES6, arguments still refers to the outer scope.
+
+  usesArguments = (node) ->
+    if not node? then false
+    else if node instanceof JS.Identifier then node.name == 'arguments'
+    else mapChildNodes node, usesArguments, ((a,b) -> a or b), false
+
+  if any block.body, usesArguments
+    if parameters.length > 0
+      debugES6("Skipping arrow function conversion because your bound function refers to the 'arguments' keyword and has regular positional arguments")
+      return null
+    rest ?= genSym 'arguments'
+    rewriteArguments = generateMutatingWalker ->
+      if (@instanceof JS.Identifier) and @name == 'arguments' then rest
+      else if isDownwardScopeBoundary(this) then this
+      else rewriteArguments this
+    for statement in block.body
+      rewriteArguments(statement)
+
+  if block.body.length == 1 && block.body[0] instanceof JS.ReturnStatement
+    fn = new JS.ArrowFunctionExpression parameters, defaults, rest, block.body[0].argument
+    fn.expression = true
+    return fn
+  else
+    return new JS.ArrowFunctionExpression parameters, defaults, rest, block
+
 
+describeClass = (name, parentNode) ->
+  return "class #{name.name}" if name?.name
+  if parentNode instanceof CS.AssignOp and parentNode.assignee instanceof CS.Identifier
+    return "An anonymous class assigned to identifier #{parentNode.assignee.data}"
+  if parentNode instanceof CS.ObjectInitialiserMember
+    return "An anonymous class assigned to property #{parentNode.key.data}"
+  return "An anonymous class"
+
+
+funcExpr = ({id, params, defaults, rest, body}) ->
+  new JS.FunctionExpression(id ? null, params ? [], defaults ? [], rest ? null, body)
+
+funcDecl = ({id, params, defaults, rest, body}) ->
+  new JS.FunctionDeclaration(id ? null, params ? [], defaults ? [], rest ? null, body)
 
 class exports.Compiler
 
@@ -415,13 +666,14 @@ class exports.Compiler
       decls = nub concatMap block, declarationsNeededRecursive
       if decls.length and not options.bare
         # add a function wrapper
-        block = [stmt new JS.UnaryExpression 'void', new JS.CallExpression (memberAccess (new JS.FunctionExpression null, [], new JS.BlockStatement block), 'call'), [new JS.ThisExpression]]
+        block = [stmt new JS.UnaryExpression 'void', new JS.CallExpression (memberAccess (funcExpr body: new JS.BlockStatement(block)), 'call'), [new JS.ThisExpression]]
       # generate node
       pkg = require './../package.json'
       program = new JS.Program block
+      ecmaMode = if options.targetES6 then '-es6' else ''
       program.leadingComments = [
         type: 'Line'
-        value: " Generated by CoffeeScript #{pkg.version}"
+        value: " Generated by CoffeeScript #{pkg.version}#{ecmaMode}"
       ]
       program
     ]
@@ -441,9 +693,28 @@ class exports.Compiler
         alternate = forceBlock alternate unless alternate.instanceof JS.IfStatement
       if alternate? or ancestry[0]?.instanceof CS.Conditional
         consequent = forceBlock consequent
-      new JS.IfStatement (expr condition), (stmt consequent), alternate
+      new JS.IfStatement (expr condition), (forceBlock consequent), alternate
     ]
-    [CS.ForIn, ({valAssignee, keyAssignee, target, step, filter, body, compile}) ->
+    [CS.ForIn, ({valAssignee, keyAssignee, target, step, filter, body, compile, options}) ->
+      if options.targetES6 and !filter
+        es6Target = if @target.instanceof CS.Range
+          rangeArgs = [compile(@target.left), compile(@target.right)]
+          unless (step instanceof JS.Literal) and step.value == 1
+            rangeArgs.push step
+          if @target.isInclusive
+            helpers.inclusiveRange(rangeArgs...)
+          else
+            helpers.range(rangeArgs...)
+        else if (step instanceof JS.Literal) and step.value == 1
+          target
+
+        if es6Target and valAssignee and (valPattern = if (valAssignee instanceof JS.Identifier) then valAssignee else es6AssignmentPattern(valAssignee))
+          if keyAssignee
+            return new JS.ForOfStatement(new JS.VariableDeclaration('var', [new JS.VariableDeclarator new JS.ArrayPattern([keyAssignee, valPattern])]), new JS.CallExpression((memberAccess es6Target, 'entries'), []), forceBlock body)
+          else
+            return new JS.ForOfStatement(new JS.VariableDeclaration('var', [new JS.VariableDeclarator valPattern]), es6Target, forceBlock body)
+
+
       i = genSym 'i'
       length = genSym 'length'
       block = forceBlock body
@@ -485,12 +756,12 @@ class exports.Compiler
         # TODO: if block only has a single statement, wrap it instead of continuing
         block.body.unshift stmt new JS.IfStatement (new JS.UnaryExpression '!', filter), new JS.ContinueStatement
       if keyAssignee?
-        block.body.unshift stmt assignment keyAssignee, i
+        block.body.unshift stmt assignment keyAssignee, i, options
       if valAssignee?
-        block.body.unshift stmt assignment valAssignee, new JS.MemberExpression yes, e, i
+        block.body.unshift stmt assignment valAssignee, (new JS.MemberExpression yes, e, i), options
       new JS.ForStatement varDeclaration, (new JS.BinaryExpression '<', i, length), (increment i), block
     ]
-    [CS.ForOf, ({keyAssignee, valAssignee, target, filter, body}) ->
+    [CS.ForOf, ({keyAssignee, valAssignee, target, filter, body, options}) ->
       block = forceBlock body
       block.body.push stmt helpers.undef() unless block.body.length
       e = if @isOwn and needsCaching @target then genSym 'cache' else expr target
@@ -498,7 +769,7 @@ class exports.Compiler
         # TODO: if block only has a single statement, wrap it instead of continuing
         block.body.unshift stmt new JS.IfStatement (new JS.UnaryExpression '!', filter), new JS.ContinueStatement
       if valAssignee?
-        block.body.unshift stmt assignment valAssignee, new JS.MemberExpression yes, e, keyAssignee
+        block.body.unshift stmt assignment valAssignee, (new JS.MemberExpression yes, e, keyAssignee), options
       if @isOwn
         block.body.unshift stmt new JS.IfStatement (new JS.UnaryExpression '!', helpers.isOwn e, keyAssignee), new JS.ContinueStatement
       right = if e is target then e else new JS.AssignmentExpression '=', e, target
@@ -527,13 +798,13 @@ class exports.Compiler
       cases[cases.length - 1].consequent = block
       cases
     ]
-    [CS.Try, ({body, catchAssignee, catchBody, finallyBody}) ->
+    [CS.Try, ({body, catchAssignee, catchBody, finallyBody, options}) ->
       finallyBlock = if @finallyBody? then forceBlock finallyBody else null
       if @catchBody? or not @finallyBody?
         e = genSym 'e'
         catchBlock = forceBlock catchBody
         if catchAssignee?
-          catchBlock.body.unshift stmt assignment catchAssignee, e
+          catchBlock.body.unshift stmt assignment catchAssignee, e, options
         handlers = [new JS.CatchClause e, catchBlock]
       else
         handlers = []
@@ -577,9 +848,9 @@ class exports.Compiler
       body.push new JS.ForStatement vars, condition, update, stmt new JS.CallExpression (memberAccess accum, 'push'), [i]
       body.push new JS.ReturnStatement accum
       if any ancestry, (ancestor) -> ancestor.instanceof CS.Functions
-        new JS.CallExpression (memberAccess (new JS.FunctionExpression null, [], new JS.BlockStatement body), 'apply'), [new JS.ThisExpression, new JS.Identifier 'arguments']
+        new JS.CallExpression (memberAccess (funcExpr body: new JS.BlockStatement body), 'apply'), [new JS.ThisExpression, new JS.Identifier 'arguments']
       else
-        new JS.CallExpression (memberAccess (new JS.FunctionExpression null, [], new JS.BlockStatement body), 'call'), [new JS.ThisExpression]
+        new JS.CallExpression (memberAccess (funcExpr body: new JS.BlockStatement body), 'call'), [new JS.ThisExpression]
     ]
     [CS.ArrayInitialiser, do ->
       groupMembers = (members) ->
@@ -591,13 +862,17 @@ class exports.Compiler
             [ys, zs] = [sliced, zs[1..]]
           else ys = new JS.ArrayExpression map ys, expr
           [ys].concat groupMembers zs
-      ({members, compile}) ->
-        if any members, (m) -> m.spread
+      ({members, compile, options}) ->
+        if (not options.targetES6) and any members, (m) -> m.spread
           grouped = map (groupMembers members), expr
           if grouped.length <= 1 then grouped[0]
           else new JS.CallExpression (memberAccess grouped[0], 'concat'), grouped[1..]
         else
-          new JS.ArrayExpression map members, expr
+          new JS.ArrayExpression map members, (m) ->
+            expr if m.spread
+              new JS.SpreadElement(m.expression)
+            else
+              m
     ]
     [CS.Spread, ({expression}) -> {spread: yes, expression: expr expression}]
     [CS.ObjectInitialiser, ({members}) -> new JS.ObjectExpression members]
@@ -609,22 +884,26 @@ class exports.Compiler
     [CS.DefaultParam, ({param, default: d}) -> {param, default: d}]
     [CS.Function, CS.BoundFunction, do ->
 
-      handleParam = (param, original, block, inScope) -> switch
+      handleParam = (param, original, block, inScope, options) -> switch
         when original.instanceof CS.Rest then param # keep these for special processing later
         when original.instanceof CS.Identifier then param
         when original.instanceof CS.MemberAccessOps, CS.ObjectInitialiser, CS.ArrayInitialiser
-          p = genSym 'param'
-          decls = map (intersect inScope, beingDeclared original), (i) -> new JS.Identifier i
-          block.body.unshift stmt assignment param, p
-          block.body.unshift makeVarDeclaration decls if decls.length
-          p
+          if options.targetES6 and (pattern = es6AssignmentPattern(param))
+            pattern
+          else
+            p = genSym 'param'
+            decls = map (intersect inScope, beingDeclared original), (i) -> new JS.Identifier i
+            block.body.unshift stmt assignment param, p, options
+            block.body.unshift makeVarDeclaration decls if decls.length
+            p
         when original.instanceof CS.DefaultParam
-          p = handleParam.call this, param.param, original.param, block, inScope
-          block.body.unshift new JS.IfStatement (new JS.BinaryExpression '==', (new JS.Literal null), p), stmt assignment p, param.default
+          p = handleParam.call this, param.param, original.param, block, inScope, options
+          if !options.targetES6
+            block.body.unshift new JS.IfStatement (new JS.BinaryExpression '==', (new JS.Literal null), p), stmt assignment p, param.default, options
           p
         else throw new Error "Unsupported parameter type: #{original.className}"
 
-      ({parameters, body, ancestry, inScope}) ->
+      ({parameters, body, ancestry, inScope, options}) ->
         unless ancestry[0]?.instanceof CS.Constructor
           body = makeReturn body
         block = forceBlock body
@@ -632,24 +911,42 @@ class exports.Compiler
         if (last?.instanceof JS.ReturnStatement) and not last.argument?
           block.body = block.body[...-1]
 
+        defaults = if options.targetES6
+          zip(parameters, @parameters).map ([param, original]) ->
+            if original instanceof CS.DefaultParam
+              param.default
+            else
+              null
+        else
+          []
+
         parameters_ =
           if parameters.length is 0 then []
           else
             pIndex = parameters.length
             while pIndex--
-              handleParam.call this, parameters[pIndex], @parameters[pIndex], block, inScope
+              handleParam.call this, parameters[pIndex], @parameters[pIndex], block, inScope, options
         parameters = parameters_.reverse()
 
         if parameters.length > 0
           if parameters[-1..][0].rest
-            paramName = parameters.pop().expression
-            numParams = parameters.length
-            test = new JS.BinaryExpression '>', (memberAccess (new JS.Identifier 'arguments'), 'length'), new JS.Literal numParams
-            consequent = helpers.slice (new JS.Identifier 'arguments'), new JS.Literal numParams
-            alternate = new JS.ArrayExpression []
-            if (paramName.instanceof JS.Identifier) and paramName.name in inScope
-              block.body.unshift makeVarDeclaration [paramName]
-            block.body.unshift stmt new JS.AssignmentExpression '=', paramName, new JS.ConditionalExpression test, consequent, alternate
+            if options.targetES6
+              expression = parameters.pop().expression
+              rest = if expression instanceof JS.Identifier
+                new JS.Identifier(expression.name)
+              else
+                sym = genSym 'rest'
+                block.body.unshift stmt new JS.AssignmentExpression '=', expression, sym
+                sym
+            else
+              paramName = parameters.pop().expression
+              numParams = parameters.length
+              test = new JS.BinaryExpression '>', (memberAccess (new JS.Identifier 'arguments'), 'length'), new JS.Literal numParams
+              consequent = helpers.slice (new JS.Identifier 'arguments'), new JS.Literal numParams
+              alternate = new JS.ArrayExpression []
+              if (paramName.instanceof JS.Identifier) and paramName.name in inScope
+                block.body.unshift makeVarDeclaration [paramName]
+              block.body.unshift stmt new JS.AssignmentExpression '=', paramName, new JS.ConditionalExpression test, consequent, alternate
           else if any parameters, (p) -> p.rest
             paramName = index = null
             for p, i in parameters when p.rest
@@ -657,6 +954,7 @@ class exports.Compiler
               index = i
               break
             parameters.splice index, 1
+            defaults.splice index, 1
             numParams = parameters.length
             numArgs = genSym 'numArgs'
             reassignments = new JS.IfStatement (new JS.BinaryExpression '>', (new JS.AssignmentExpression '=', numArgs, memberAccess (new JS.Identifier 'arguments'), 'length'), new JS.Literal numParams), (new JS.BlockStatement [
@@ -672,26 +970,85 @@ class exports.Compiler
 
         performedRewrite = no
         if @instanceof CS.BoundFunction
-          newThis = genSym 'this'
-          rewriteThis = generateMutatingWalker ->
-            if @instanceof JS.ThisExpression
-              performedRewrite = yes
-              newThis
-            else if @instanceof JS.FunctionExpression, JS.FunctionDeclaration then this
-            else rewriteThis this
-          rewriteThis block
-
-        fn = new JS.FunctionExpression null, parameters, block
+          if options.targetES6 and (arrow = es6SafeArrowExpression(parameters, defaults, rest, block))
+            return arrow
+          else
+            newThis = genSym 'this'
+            rewriteThis = generateMutatingWalker ->
+              if @instanceof JS.ThisExpression
+                performedRewrite = yes
+                newThis
+              else if @instanceof JS.FunctionExpression, JS.FunctionDeclaration then this
+              else rewriteThis this
+            rewriteThis block
+
+        fn = funcExpr params:parameters, defaults:defaults, rest: rest, body: block
+
         if performedRewrite
-          new JS.CallExpression (new JS.FunctionExpression null, [newThis], new JS.BlockStatement [
+          new JS.CallExpression (funcExpr params: [newThis], body: new JS.BlockStatement [
             new JS.ReturnStatement fn
           ]), [new JS.ThisExpression]
         else fn
     ]
-    [CS.Rest, ({expression}) -> {rest: yes, expression, isExpression: yes, isStatement: yes}]
+    [CS.Rest, ({expression, options}) -> {rest: yes, expression, isExpression: yes, isStatement: yes}]
 
     # TODO: comment
-    [CS.Class, ({nameAssignee, parent, name, ctor, body, compile}) ->
+    [CS.Class, ({nameAssignee, parent, name, ctor, body, compile, options, ancestry}) ->
+      if options.targetES6
+        parentIdentifier = new JS.Identifier(parent.name) if parent
+        classIdentifier = if name.name
+          new JS.Identifier(name.name)
+        else
+          genSym 'klass'
+
+        { methods, properties, unmatched } = findES6Methods(classIdentifier, ctor, parent?, forceBlock body)
+
+        # Emit our ES6 class only if we were able to account for
+        # everything in its definition. Otherwise, fall through to the
+        # non-ES6 emulation
+        if @ctor and not @ctor.expression.instanceof CS.Functions
+          debugES6 "#{describeClass(name, ancestry[0])} was not converted to ES6 because its constructor is not a function expression."
+        else if @boundMembers.length > 0
+          debugES6 "#{describeClass(name, ancestry[0])} was not converted to ES6 because it has bound function members."
+        else if nameAssignee and not nameAssignee.instanceof JS.Identifier
+          debugES6 "#{describeClass(name, ancestry[0])} was not converted to ES6 because it's being assigned to a compound name."
+        else if parent and not (parent instanceof JS.Identifier)
+          debugES6 "#{describeClass(name, ancestry[0])} was not converted to ES6 because it extends an expression."
+        else if unmatched.length > 0
+          debugES6 "#{describeClass(name, ancestry[0])} was not converted to ES6 because its body contains code that we couldn't map directly to methods, static methods, prototype properties, or class properties."
+        else
+          # Key difference between coffeescript and ES6: in
+          # coffeescript, you get a local binding to the class's name
+          # whether or not you use the class as an expression
+          # value. In ES6, a class used as an expression value does
+          # not create a local binding. So to mimic coffeescript
+          # semantics in ES6, we convert `a = class B` to:
+          #
+          #     var a, B;
+          #     a = B = class B {}
+          #
+          # This is analogous to the way `var x = function y(){}` works.
+          classExpression = new JS.ClassExpression((if (classIdentifier instanceof JS.GenSym) then null else classIdentifier), parentIdentifier, new JS.ClassBody(methods))
+          classAssignment = new JS.AssignmentExpression '=', classIdentifier, classExpression
+          return if properties.length == 0
+            if classIdentifier instanceof JS.GenSym
+              # no properties, no name, so we can use just a bare anonymous expression
+              classExpression
+            else
+              # no properties, with name, so we use an assignment
+              # expression, and we provide the option to simplify to a
+              # declaration if we're used in a statement context.
+              classAssignment.becomeStatement = ->
+                statement = new JS.ClassDeclaration(classIdentifier, parentIdentifier, new JS.ClassBody(methods))
+                statement.becomeExpression = -> classAssignment
+                statement
+              classAssignment
+          else
+            # need to set properties, so create an IIFE
+            block = new JS.BlockStatement([ stmt classAssignment ].concat(map properties, stmt).concat(makeReturn classIdentifier))
+            new JS.CallExpression((funcExpr body: block).g(), [])
+
+          
       args = []
       params = []
       parentRef = genSym 'super'
@@ -711,7 +1068,7 @@ class exports.Compiler
           ctorBody.body.push stmt new JS.CallExpression (memberAccess parentRef, 'apply'), [
             new JS.ThisExpression, new JS.Identifier 'arguments'
           ]
-        ctor = new JS.FunctionDeclaration name, [], ctorBody
+        ctor = funcDecl id: name, body: ctorBody
         ctorIndex = 0
         block.body.unshift ctor
       ctor.id = name
@@ -728,7 +1085,7 @@ class exports.Compiler
           ps = (genSym() for _ in protoAssignOp.expression.parameters)
           member = memberAccess new JS.ThisExpression, memberName
           protoMember = memberAccess (memberAccess name, 'prototype'), memberName
-          fn = new JS.FunctionExpression null, ps, new JS.BlockStatement [
+          fn = funcExpr params: ps, body: new JS.BlockStatement [
             makeReturn new JS.CallExpression (memberAccess protoMember, 'apply'), [instance, new JS.Identifier 'arguments']
           ]
           ctor.body.body.unshift stmt new JS.AssignmentExpression '=', member, fn
@@ -737,7 +1094,11 @@ class exports.Compiler
       if parent?
         params.push parentRef
         args.push parent
-        block.body.unshift stmt helpers.extends name, parentRef
+        helper = if options.targetES6
+          'extendsES6'
+        else
+          'extends'
+        block.body.unshift stmt helpers[helper] name, parentRef
       block.body.push new JS.ReturnStatement new JS.ThisExpression
 
       rewriteThis = generateMutatingWalker ->
@@ -746,15 +1107,15 @@ class exports.Compiler
         else rewriteThis this
       rewriteThis block
 
-      iife = new JS.CallExpression (new JS.FunctionExpression null, params, block).g(), args
-      if nameAssignee? then assignment nameAssignee, iife else iife
+      iife = new JS.CallExpression (funcExpr params: params, body: block).g(), args
+      if nameAssignee? then assignment nameAssignee, iife, options else iife
     ]
     [CS.Constructor, ({expression}) ->
       tmpName = genSym 'class'
       if @expression.instanceof CS.Functions
-        new JS.FunctionDeclaration tmpName, expression.params, forceBlock expression.body
+        funcDecl id: tmpName, params: expression.params, defaults: expression.defaults, rest: expression.rest, body: (forceBlock expression.body)
       else
-        new JS.FunctionDeclaration tmpName, [], new JS.BlockStatement []
+        funcDecl id: tmpName, body: (new JS.BlockStatement [])
     ]
     [CS.ClassProtoAssignOp, ({assignee, expression, compile}) ->
       if @expression.instanceof CS.BoundFunction
@@ -765,8 +1126,8 @@ class exports.Compiler
     ]
 
     # more complex operations
-    [CS.AssignOp, ({assignee, expression, ancestry}) ->
-      assignment assignee, expression, usedAsExpression this, ancestry
+    [CS.AssignOp, ({assignee, expression, ancestry, options}) ->
+      assignment assignee, expression, options, usedAsExpression this, ancestry
     ]
     [CS.CompoundAssignOp, ({assignee, expression, inScope}) ->
       op = switch @op
@@ -813,8 +1174,93 @@ class exports.Compiler
         else lhs.right = new JS.AssignmentExpression '=', left, lhs.right
       new JS.LogicalExpression '&&', lhs, new JS.BinaryExpression expression.operator, left, expression.right
     ]
-    [CS.FunctionApplication, ({function: fn, arguments: args, compile}) ->
-      if any args, (m) -> m.spread
+
+    [CS.Super, ({arguments: args, compile, inScope, ancestry, options}) ->
+
+      tagForES6 = (node) ->
+        # If we're inside an ES6 class expression, we need to compile to
+        # an ES6 "super". But at this point we can't actually tell if
+        # we're going to end up inside an ES6 class expression, because
+        # our enclosing class may turn out to be untranspilable. So for
+        # now we just tag the node as eligible to be converted.
+        node.toES6Super = ->
+          callee = if functionName == 'constructor'
+            new JS.Identifier('super')
+          else
+            memberAccess new JS.Identifier('super'), functionName
+          args = if args.length > 0
+            map args, expr
+          else
+            [new JS.SpreadElement(new JS.Identifier('arguments'))]
+          new JS.CallExpression callee, args
+        node
+
+      classNode = find ancestry, (node) =>
+        (node instanceof CS.Class) or (node.assignee instanceof CS.ProtoMemberAccessOp)
+
+      classPositionInAncestry = ancestry.indexOf(classNode)
+      classAssignNode = ancestry[ ancestry.indexOf(classNode) - 1]
+
+      className = null
+      functionName = null
+      isStatic = false
+      isProtoMemberAccess = classNode.assignee instanceof CS.ProtoMemberAccessOp
+
+      switch
+        when classNode instanceof CS.Class
+          className = classNode.name.data
+          functionName = do ->
+            searchableNodes = [];
+            for i, n in ancestry
+              break if n is classPositionInAncestry
+              searchableNodes.unshift i
+            assignableNode = find searchableNodes, (node) => node.assignee?
+            return 'constructor' unless assignableNode?
+
+            switch
+              when assignableNode.assignee instanceof CS.MemberAccessOp
+                isStatic = true
+                assignableNode.assignee.memberName
+              when assignableNode.assignee instanceof CS.Identifier
+                assignableNode.assignee.data
+
+        when classNode instanceof CS.AssignOp
+          isStatic = false
+          className = classNode.assignee.expression.data
+          functionName = classNode.assignee.memberName
+
+      if className is 'class'
+        if args.length > 0
+          calledExprs = [new JS.ThisExpression].concat (map args, expr)
+          return tagForES6 new JS.CallExpression (memberAccess (memberAccess (memberAccess (new JS.Identifier classNode.parent.data) , 'prototype'), functionName), 'call'), calledExprs
+        else
+          return tagForES6 new JS.CallExpression (memberAccess (memberAccess (memberAccess (new JS.Identifier classNode.parent.data) , 'prototype'), functionName), 'apply'), [
+            new JS.ThisExpression
+            new JS.Identifier 'arguments'
+          ]
+
+      tagForES6 if isStatic
+        if args.length is 0
+          new JS.CallExpression (memberAccess (memberAccess (memberAccess (memberAccess (new JS.Identifier className) , '__super__'), 'constructor'),  functionName), 'apply'), [
+            new JS.ThisExpression
+            new JS.Identifier 'arguments'
+          ]
+        else
+          calledExprs = [new JS.ThisExpression].concat (map args, expr)
+          new JS.CallExpression (memberAccess (memberAccess (memberAccess (memberAccess (new JS.Identifier className) , '__super__'), 'constructor'), functionName), 'call'), calledExprs
+      else
+        if args.length is 0
+          new JS.CallExpression (memberAccess (memberAccess (memberAccess (new JS.Identifier className) , '__super__'), functionName), 'apply'), [
+            new JS.ThisExpression
+            new JS.Identifier 'arguments'
+          ]
+        else
+          calledExprs = [new JS.ThisExpression].concat (map args, expr)
+          new JS.CallExpression (memberAccess (memberAccess (memberAccess (new JS.Identifier className) , '__super__'), functionName), 'call'), calledExprs
+    ]
+
+    [CS.FunctionApplication, ({function: fn, arguments: args, compile, options}) ->
+      if (not options.targetES6) and any args, (m) -> m.spread
         lhs = @function
         context = new CS.Null
         if needsCaching @function
@@ -832,7 +1278,11 @@ class exports.Compiler
           context = new CS.SoakedMemberAccessOp context, 'prototype'
         compile new CS.FunctionApplication (new CS.MemberAccessOp lhs, 'apply'), [context, new CS.ArrayInitialiser @arguments]
       else if hasSoak this then compile generateSoak this
-      else new JS.CallExpression (expr fn), map args, expr
+      else new JS.CallExpression (expr fn), map args, (a) ->
+        expr if options.targetES6 and a.spread
+          new JS.SpreadElement a.expression
+        else
+          a
     ]
     [CS.SoakedFunctionApplication, ({compile}) -> compile generateSoak this]
     [CS.NewOp, ({ctor, arguments: args, compile}) ->
@@ -866,7 +1316,7 @@ class exports.Compiler
       else
         access = memberAccess expression, @memberName
         # manually calculate raw/position info for member name
-        if @raw
+        if @raw and @expression.raw
           access.property.raw = @memberName
           access.property.line = @line
           offset = @raw.length - @memberName.length
@@ -950,7 +1400,7 @@ class exports.Compiler
 
     [CS.OfOp, ({left, right}) -> new JS.BinaryExpression 'in', (expr left), expr right]
     [CS.InOp, ({left, right}) ->
-      if (right.instanceof JS.ArrayExpression) and right.elements.length < 5
+      if (right.instanceof JS.ArrayExpression) and right.elements.length < 5 and all right.elements, (elt) -> not (elt instanceof JS.SpreadElement)
         switch right.elements.length
           when 0
             if needsCaching @left
@@ -968,7 +1418,10 @@ class exports.Compiler
       else
         helpers.in (expr left), expr right
     ]
-    [CS.ExtendsOp, ({left, right}) -> helpers.extends (expr left), expr right]
+    [CS.ExtendsOp, ({left, right, options}) ->
+      helper = if options.targetES6 then 'extendsES6' else 'extends'
+      helpers[helper] (expr left), expr right
+    ]
     [CS.InstanceofOp, ({left, right}) -> new JS.BinaryExpression 'instanceof', (expr left), expr right]
 
     [CS.LogicalAndOp, ({left, right}) -> new JS.LogicalExpression '&&', (expr left), expr right]
@@ -1042,12 +1495,12 @@ class exports.Compiler
         children[childName] =
           if childName in @listMembers
             for member in this[childName]
-              jsNode = walk.call member, fn, inScope, ancestry
+              jsNode = walk.call member, fn, inScope, ancestry, options
               inScope = union inScope, envEnrichments member, inScope
               jsNode
           else
             child = this[childName]
-            jsNode = walk.call child, fn, inScope, ancestry
+            jsNode = walk.call child, fn, inScope, ancestry, options
             inScope = union inScope, envEnrichments child, inScope
             jsNode
 
@@ -1055,7 +1508,7 @@ class exports.Compiler
       children.ancestry = ancestry
       children.options = options
       children.compile = (node) ->
-        walk.call node, fn, inScope, ancestry
+        walk.call node, fn, inScope, ancestry, options
 
       do ancestry.shift
       jsNode = fn.call this, children
@@ -1098,7 +1551,7 @@ class exports.Compiler
           newNode = new JS.Identifier generateName this, state
           usedSymbols.push newNode.name
           newNode
-        else if isScopeBoundary(this)
+        else if isDownwardScopeBoundary(this)
           params = concatMap @params, collectIdentifiers
           nsCounters_ = {}
           nsCounters_[k] = v for own k, v of nsCounters
@@ -1139,4 +1592,3 @@ class exports.Compiler
         declaredSymbols: inScope
         usedSymbols: union jsReserved[..], collectIdentifiers jsAST
         nsCounters: {}
-
diff --git a/src/functional-helpers.coffee b/src/functional-helpers.coffee
index 88158e28..2f1a7f21 100644
--- a/src/functional-helpers.coffee
+++ b/src/functional-helpers.coffee
@@ -1,58 +1,69 @@
-@any = (list, fn) ->
-  for e in list
-    return yes if fn e
-  no
+module.exports =
+  any: (list, fn) ->
+    for e in list
+      return yes if fn e
+    no
 
-@all = (list, fn) ->
-  for e in list
-    return no unless fn e
-  yes
+  all: (list, fn) ->
+    for e in list
+      return no unless fn e
+    yes
 
-@foldl = foldl = (memo, list, fn) ->
-  for i in list
-    memo = fn memo, i
-  memo
+  find: (list, fn) ->
+    for e in list
+      return e if fn(e)
+    null
 
-@foldl1 = (list, fn) -> foldl list[0], list[1..], fn
+  foldl: foldl = (memo, list, fn) ->
+    for i in list
+      memo = fn memo, i
+    memo
 
-@map = map = (list, fn) -> fn e for e in list
+  foldl1: (list, fn) -> foldl list[0], list[1..], fn
 
-@concat = concat = (list) -> [].concat list...
+  map: map = (list, fn) -> fn e for e in list
 
-@concatMap = (list, fn) -> concat map list, fn
+  concat: concat = (list) -> [].concat list...
 
-@intersect = (listA, listB) -> a for a in listA when a in listB
+  concatMap: (list, fn) -> concat map list, fn
 
-@difference = (listA, listB) -> a for a in listA when a not in listB
+  intersect: (listA, listB) -> a for a in listA when a in listB
 
-@nub = nub = (list) ->
-  result = []
-  result.push i for i in list when i not in result
-  result
+  difference: (listA, listB) -> a for a in listA when a not in listB
 
-@union = (listA, listB) ->
-  listA.concat (b for b in (nub listB) when b not in listA)
+  nub: nub = (list) ->
+    result = []
+    result.push i for i in list when i not in result
+    result
 
-@flip = (fn) -> (b, a) -> fn.call this, a, b
+  union: (listA, listB) ->
+    listA.concat (b for b in (nub listB) when b not in listA)
 
-@owns = do (hop = {}.hasOwnProperty) -> (a, b) -> hop.call a, b
+  flip: (fn) -> (b, a) -> fn.call this, a, b
 
-@span = span = (list, f) ->
-  if list.length is 0 then [[], []]
-  else if f list[0]
-    [ys, zs] = span list[1..], f
-    [[list[0], ys...], zs]
-  else [[], list]
+  owns: do (hop = {}.hasOwnProperty) -> (a, b) -> hop.call a, b
 
-@divMod = (a, b) ->
-  c = a % b
-  mod = if c < 0 then c + b else c
-  div = Math.floor a / b
-  [div, mod]
+  span: span = (list, f) ->
+    if list.length is 0 then [[], []]
+    else if f list[0]
+      [ys, zs] = span list[1..], f
+      [[list[0], ys...], zs]
+    else [[], list]
 
-# The partition function takes a list and predicate fn and returns the pair of lists
-# of elements which do and do not satisfy the predicate, respectively.
-@partition = (list, fn) ->
-  result = [[], []]
-  result[+!fn item].push item for item in list
-  result
+  divMod: (a, b) ->
+    c = a % b
+    mod = if c < 0 then c + b else c
+    div = Math.floor a / b
+    [div, mod]
+
+  # The partition function takes a list and predicate fn and returns the pair of lists
+  # of elements which do and do not satisfy the predicate, respectively.
+  partition: (list, fn) ->
+    result = [[], []]
+    result[+!fn item].push item for item in list
+    result
+
+  zip: (listA, listB) ->
+    len = Math.max listA.length, listB.length
+    for i in [0...len]
+      [listA[i], listB[i]]
diff --git a/src/grammar.pegcoffee b/src/grammar.pegcoffee
index 23495794..18eb9c18 100644
--- a/src/grammar.pegcoffee
+++ b/src/grammar.pegcoffee
@@ -548,24 +548,36 @@ leftHandSideExpressionNoImplicitObjectCall = callExpressionNoImplicitObjectCall
     / secondaryExpressionNoImplicitObjectCall
 
 callExpression
-  = fn:memberExpression accesses:callExpressionAccesses? secondaryArgs:("?"? secondaryArgumentList)? {
-      fn = createMemberExpression fn, accesses if accesses?
-      if secondaryArgs?
-        [ soaked, list ] = secondaryArgs
+  = SUPER accesses:callExpressionAccesses? secondaryArgs:secondaryArgumentList?{
+      if accesses
+        rp(new CS.Super(accesses[0].operands[0]))
+      else
+        rp(new CS.Super(secondaryArgs || [] ))
+    }
+  / fn:memberExpression accesses:callExpressionAccesses? secondaryArgs:("?"? secondaryArgumentList)? {
+      fn = createMemberExpression(fn, accesses) if accesses?
+      if secondaryArgs
+        soaked = secondaryArgs[0]
         secondaryCtor = if soaked then CS.SoakedFunctionApplication else CS.FunctionApplication
-        fn = rp new secondaryCtor fn, list
+        fn = rp(new secondaryCtor(fn, secondaryArgs[1]))
       fn
     }
   callExpressionAccesses
     = TERMINDENT as:callExpressionAccesses DEDENT { as }
     / as:(argumentList / MemberAccessOps)+ bs:callExpressionAccesses? { [as..., (bs ? [])...] }
 callExpressionNoImplicitObjectCall
-  = fn:memberExpressionNoImplicitObjectCall accesses:(argumentList / MemberAccessOps)* secondaryArgs:("?"? secondaryArgumentListNoImplicitObjectCall)? {
-      fn = createMemberExpression fn, accesses if accesses?
-      if secondaryArgs?
-        [ soaked, list ] = secondaryArgs
+  = SUPER accesses:callExpressionAccesses? secondaryArgs:secondaryArgumentList?{
+      if accesses
+        rp(new CS.Super(accesses[0].operands[0]))
+      else
+        rp(new CS.Super(secondaryArgs || [] ))
+    }
+  / fn:memberExpressionNoImplicitObjectCall accesses:(argumentList / MemberAccessOps)* secondaryArgs:("?"? secondaryArgumentListNoImplicitObjectCall)? {
+      fn = createMemberExpression(fn, accesses) if accesses?
+      if secondaryArgs
+        soaked = secondaryArgs[0]
         secondaryCtor = if soaked then CS.SoakedFunctionApplication else CS.FunctionApplication
-        fn = rp new secondaryCtor fn, list
+        fn = rp(new secondaryCtor(fn, secondaryArgs[1]))
       fn
     }
 
@@ -920,6 +932,7 @@ macro
   / "__TIME__" { rp new CS.String (new Date).toTimeString()[0...8] }
   / "__DATETIMEMS__" { rp new CS.Int +new Date }
   / "__COFFEE_VERSION__" { rp new CS.String (require '../package.json').version }
+  / "__TARGET_ES6__" { rp new CS.Bool !!options.targetES6 }
 
 
 bool
@@ -1169,6 +1182,7 @@ UNTIL = $("until" !identifierPart)
 WHEN = $("when" !identifierPart)
 WHILE = $("while" !identifierPart)
 YES = $("yes" !identifierPart)
+SUPER = $("super" !identifierPart)
 
 SharedKeywords
   = ("true" / "false" / "null" / "this" / "new" / "delete" / "typeof" /
diff --git a/src/helpers.coffee b/src/helpers.coffee
index 5498e9d4..e4e5ef9d 100644
--- a/src/helpers.coffee
+++ b/src/helpers.coffee
@@ -17,7 +17,7 @@ colourise = (colour, str) ->
   if SUPPORTS_COLOUR then "#{COLOURS[colour]}#{str}\x1B[39m" else str
 
 
-@numberLines = numberLines = (input, startLine = 1) ->
+exports.numberLines = numberLines = (input, startLine = 1) ->
   lines = input.split '\n'
   padSize = "#{lines.length + startLine - 1}".length
   numbered = for line, i in lines
@@ -28,21 +28,33 @@ colourise = (colour, str) ->
 
 cleanMarkers = (str) -> str.replace /[\uEFEF\uEFFE\uEFFF]/g, ''
 
-@humanReadable = humanReadable = (str) ->
+exports.humanReadable = humanReadable = (str) ->
   ((str.replace /\uEFEF/g, '(INDENT)').replace /\uEFFE/g, '(DEDENT)').replace /\uEFFF/g, '(TERM)'
 
-@formatParserError = (input, e) ->
-  realColumn = (cleanMarkers "#{(input.split '\n')[e.line - 1]}\n"[...e.column]).length
+exports.formatParserError = (input, e) ->
+  lines = input.split('\n')
+  line = e.line - 1 # switch to zero-indexed
+  column = e.column
+  offset = e.offset
+  while offset > 0
+    if offset > lines[line].length + 1 # these "+1"s are for the trailing "\n"
+      offset -= lines[line].length + 1
+      line += 1
+    else
+      column += offset
+      offset = 0
+  realColumn = (cleanMarkers "#{lines[line]}\n"[...column]).length
+  line += 1 # switch back to one-indexed
   unless e.found?
-    return "Syntax error on line #{e.line}, column #{realColumn}: unexpected end of input"
+    return "Syntax error on line #{line}, column #{realColumn}: unexpected end of input"
   found = JSON.stringify humanReadable e.found
   found = ((found.replace /^"|"$/g, '').replace /'/g, '\\\'').replace /\\"/g, '"'
   unicode = ((e.found.charCodeAt 0).toString 16).toUpperCase()
   unicode = "\\u#{"0000"[unicode.length..]}#{unicode}"
-  message = "Syntax error on line #{e.line}, column #{realColumn}: unexpected '#{found}' (#{unicode})"
-  "#{message}\n#{pointToErrorLocation input, e.line, realColumn}"
+  message = "Syntax error on line #{line}, column #{realColumn}: unexpected '#{found}' (#{unicode})"
+  "#{message}\n#{pointToErrorLocation input, line, realColumn}"
 
-@pointToErrorLocation = pointToErrorLocation = (source, line, column, numLinesOfContext = 3) ->
+exports.pointToErrorLocation = pointToErrorLocation = (source, line, column, numLinesOfContext = 3) ->
   lines = source.split '\n'
   lines.pop() unless lines[lines.length - 1]
   # figure out which lines are needed for context
@@ -67,7 +79,7 @@ cleanMarkers = (str) -> str.replace /[\uEFEF\uEFFE\uEFFF]/g, ''
 
 # these are the identifiers that need to be declared when the given value is
 # being used as the target of an assignment
-@beingDeclared = beingDeclared = (assignment) -> switch
+exports.beingDeclared = beingDeclared = (assignment) -> switch
   when not assignment? then []
   when assignment.instanceof CS.Identifiers then [assignment.data]
   when assignment.instanceof CS.Rest then beingDeclared assignment.expression
@@ -77,7 +89,7 @@ cleanMarkers = (str) -> str.replace /[\uEFEF\uEFFE\uEFFF]/g, ''
   when assignment.instanceof CS.ObjectInitialiser then concatMap assignment.vals(), beingDeclared
   else throw new Error "beingDeclared: Non-exhaustive patterns in case: #{assignment.className}"
 
-@declarationsFor = (node, inScope) ->
+exports.declarationsFor = (node, inScope) ->
   vars = envEnrichments node, inScope
   foldl (new CS.Undefined).g(), vars, (expr, v) ->
     (new CS.AssignOp (new CS.Identifier v).g(), expr).g()
@@ -101,7 +113,7 @@ usedAsExpression_ = (ancestors) ->
       no
     else yes
 
-@usedAsExpression = usedAsExpression = (node, ancestors) ->
+exports.usedAsExpression = usedAsExpression = (node, ancestors) ->
   usedAsExpression_.call node, ancestors
 
 # environment enrichments that occur when this node is evaluated
@@ -143,5 +155,5 @@ envEnrichments_ = (inScope = []) ->
         else envEnrichments this[child], inScope
   difference possibilities, inScope
 
-@envEnrichments = envEnrichments = (node, args...) ->
+exports.envEnrichments = envEnrichments = (node, args...) ->
   if node? then envEnrichments_.apply node, args else []
diff --git a/src/js-nodes.coffee b/src/js-nodes.coffee
index e9df8fd5..32f5d1c8 100644
--- a/src/js-nodes.coffee
+++ b/src/js-nodes.coffee
@@ -8,7 +8,7 @@ createNode = (type, props) ->
     type: type
     childNodes: props
 
-@Nodes = class Nodes
+exports.Nodes = class Nodes
   listMembers: []
   instanceof: (ctors...) ->
     # not a fold for efficiency's sake
@@ -17,7 +17,6 @@ createNode = (type, props) ->
     no
   toBasicObject: ->
     obj = {@type}
-    obj.leadingComments = @leadingComments if @leadingComments?
     for child in @childNodes
       if child in @listMembers
         obj[child] = (p?.toBasicObject() for p in this[child])
@@ -30,18 +29,34 @@ createNode = (type, props) ->
         @offset
         if @raw? then @offset + @raw.length else undefined
       ]
-    if @raw? then obj.raw = @raw
+
+    for property in ['leadingComments', 'raw', 'expression', 'generator', 'static', 'shorthand']
+      if this[property]? && property not in @childNodes
+        obj[property] = this[property]
     obj
 
+  shallowCopy: ->
+    c = new (this.constructor)
+    for k,v of this
+      if k and (k in @listMembers)
+        k = k.slice()
+      c[k] = v
+    c
+
 nodeData = [
   # constructor name, isStatement, construction parameters
   ['ArrayExpression'      , no , ['elements']]
+  ['ArrayPattern'         , no , ['elements']]
+  ['ArrowFunctionExpression',no, ['params', 'defaults', 'rest', 'body']]
   ['AssignmentExpression' , no , ['operator', 'left', 'right']]
   ['BinaryExpression'     , no , ['operator', 'left', 'right']]
   ['BlockStatement'       , yes, ['body']]
   ['BreakStatement'       , yes, ['label']]
   ['CallExpression'       , no , ['callee', 'arguments']]
   ['CatchClause'          , yes, ['param', 'body']]
+  ['ClassBody'            , yes, ['body']]
+  ['ClassDeclaration'     , yes,  ['id', 'superClass', 'body']]
+  ['ClassExpression'      , no, ['id', 'superClass', 'body']]
   ['ConditionalExpression', no , ['test', 'consequent', 'alternate']]
   ['ContinueStatement'    , yes, ['label']]
   ['DebuggerStatement'    , yes, []]
@@ -49,9 +64,10 @@ nodeData = [
   ['EmptyStatement'       , yes, []]
   ['ExpressionStatement'  , yes, ['expression']]
   ['ForInStatement'       , yes, ['left', 'right', 'body']]
+  ['ForOfStatement'       , yes, ['left', 'right', 'body']]
   ['ForStatement'         , yes, ['init', 'test', 'update', 'body']]
-  ['FunctionDeclaration'  , yes, ['id', 'params', 'body']]
-  ['FunctionExpression'   , no , ['id', 'params', 'body']]
+  ['FunctionDeclaration'  , yes, ['id', 'params', 'defaults', 'rest', 'body']]
+  ['FunctionExpression'   , no , ['id', 'params', 'defaults', 'rest', 'body']]
   ['GenSym'               , no , ['ns', 'uniqueId']]
   ['Identifier'           , no , ['name']]
   ['IfStatement'          , yes, ['test', 'consequent', 'alternate']]
@@ -59,12 +75,16 @@ nodeData = [
   ['Literal'              , no , ['value']]
   ['LogicalExpression'    , no , ['operator', 'left', 'right']]
   ['MemberExpression'     , no , ['computed', 'object', 'property']]
+  ['MethodDefinition'     , no , ['key', 'value']]
   ['NewExpression'        , no , ['callee', 'arguments']]
   ['ObjectExpression'     , no , ['properties']]
+  ['ObjectPattern'        , no , ['properties']]
   ['Program'              , yes, ['body']]
   ['Property'             , yes, ['key', 'value']]
+  ['RestElement'          , yes, ['argument']]
   ['ReturnStatement'      , yes, ['argument']]
   ['SequenceExpression'   , no , ['expressions']]
+  ['SpreadElement'        , no,  ['argument']]  
   ['SwitchCase'           , yes, ['test', 'consequent']]
   ['SwitchStatement'      , yes, ['discriminant', 'cases']]
   ['ThisExpression'       , no , []]
@@ -76,6 +96,7 @@ nodeData = [
   ['VariableDeclarator'   , yes, ['id', 'init']]
   ['WhileStatement'       , yes, ['test', 'body']]
   ['WithStatement'        , yes, ['object', 'body']]
+  ['YieldExpression'      , no,  ['argument']]
 ]
 
 for [node, isStatement, params] in nodeData
@@ -86,11 +107,11 @@ for [node, isStatement, params] in nodeData
 
 {
   Program, BlockStatement, Literal, Identifier, FunctionExpression,
-  CallExpression, SequenceExpression, ArrayExpression, BinaryExpression,
-  UnaryExpression, NewExpression, VariableDeclaration, ObjectExpression,
+  CallExpression, SequenceExpression, ArrayExpression, ArrayPattern, BinaryExpression,
+  UnaryExpression, NewExpression, VariableDeclaration, ObjectExpression, ObjectPattern,
   MemberExpression, UpdateExpression, AssignmentExpression, LogicalExpression,
   GenSym, FunctionDeclaration, VariableDeclaration, SwitchStatement, SwitchCase,
-  TryStatement
+  TryStatement, ArrowFunctionExpression, ClassBody
 } = exports
 
 ## Nodes that contain primitive properties
@@ -119,12 +140,16 @@ handlePrimitives VariableDeclaration, ['kind']
 handleLists = (ctor, listProps) -> ctor::listMembers = listProps
 
 handleLists ArrayExpression, ['elements']
+handleLists ArrayPattern, ['elements']
+handleLists ArrowFunctionExpression, ['params', 'defaults']
 handleLists BlockStatement, ['body']
 handleLists CallExpression, ['arguments']
-handleLists FunctionDeclaration, ['params']
-handleLists FunctionExpression, ['params']
+handleLists ClassBody, ['body']
+handleLists FunctionDeclaration, ['params', 'defaults']
+handleLists FunctionExpression, ['params', 'defaults']
 handleLists NewExpression, ['arguments']
 handleLists ObjectExpression, ['properties']
+handleLists ObjectPattern, ['properties']
 handleLists Program, ['body']
 handleLists SequenceExpression, ['expressions']
 handleLists SwitchCase, ['consequent']
diff --git a/src/module.coffee b/src/module.coffee
index 7a499b16..a2e4c1e2 100644
--- a/src/module.coffee
+++ b/src/module.coffee
@@ -37,6 +37,7 @@ CoffeeScript =
       parsed = Parser.parse preprocessed,
         raw: options.raw
         inputSource: options.inputSource
+        targetES6: options.targetES6
       if options.optimise then Optimiser.optimise parsed else parsed
     catch e
       throw e unless e instanceof Parser.SyntaxError
diff --git a/src/preprocessor.coffee b/src/preprocessor.coffee
index d08c00a1..0e2f040b 100644
--- a/src/preprocessor.coffee
+++ b/src/preprocessor.coffee
@@ -6,7 +6,7 @@ StringScanner = require 'StringScanner'
 # TODO: support win32-style line endings
 # TODO: now that the preprocessor doesn't support streaming input, optimise the `process` method
 
-@Preprocessor = class Preprocessor
+exports.Preprocessor = class Preprocessor
 
   ws = '\\t\\x0B\\f\\r \\xA0\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000\\uFEFF'
   INDENT = '\uEFEF'
diff --git a/test/classes.coffee b/test/classes.coffee
index f3a38792..bfc45fb3 100644
--- a/test/classes.coffee
+++ b/test/classes.coffee
@@ -4,6 +4,14 @@ suite 'Classes', ->
 
     test "Overriding the static property new doesn't clobber Function::new", ->
 
+      # This test doesn't work with ES6 classes. In CoffeesScript,
+      # class properties (like `new` below) are copied from parent
+      # class to child class. But in ES6 classes, they use real
+      # prototypical inheritance. So `delete TwoClass.new` doesn't do
+      # anything, and `TwoClass.new` will continue referring to
+      # OneClass's `new` via the prototype chain.
+      return if __TARGET_ES6__
+
       class OneClass
         @new: 'new'
         function: 'function'
@@ -20,36 +28,36 @@ suite 'Classes', ->
 
       delete Function.prototype.new
 
-    test.skip 'basic classes, again, but in the manual prototype style', -> # Currently syntax error.
-    #
-    #  Base = ->
-    #  Base::func = (string) ->
-    #    'zero/' + string
-    #  Base::['func-func'] = (string) ->
-    #    "dynamic-#{string}"
-    #
-    #  FirstChild = ->
-    #  SecondChild = ->
-    #  ThirdChild = ->
-    #    @array = [1, 2, 3]
-    #    this
-    #
-    #  ThirdChild extends SecondChild extends FirstChild extends Base
-    #
-    #  FirstChild::func = (string) ->
-    #    super('one/') + string
-    #
-    #  SecondChild::func = (string) ->
-    #    super('two/') + string
-    #
-    #  ThirdChild::func = (string) ->
-    #    super('three/') + string
-    #
-    #  result = (new ThirdChild).func 'four'
-    #
-    #  ok result is 'zero/one/two/three/four'
-    #
-    #  ok (new ThirdChild)['func-func']('thing') is 'dynamic-thing'
+    test 'basic classes, again, but in the manual prototype style', ->
+
+      Base = ->
+      Base::func = (string) ->
+        'zero/' + string
+      Base::['func-func'] = (string) ->
+        "dynamic-#{string}"
+
+      FirstChild = ->
+      SecondChild = ->
+      ThirdChild = ->
+        @array = [1, 2, 3]
+        this
+
+      ThirdChild extends SecondChild extends FirstChild extends Base
+
+      FirstChild::func = (string) ->
+        super('one/') + string
+
+      SecondChild::func = (string) ->
+        super('two/') + string
+
+      ThirdChild::func = (string) ->
+        super('three/') + string
+
+      result = (new ThirdChild).func 'four'
+
+      ok result is 'zero/one/two/three/four'
+
+      ok (new ThirdChild)['func-func']('thing') is 'dynamic-thing'
 
     test 'static assignment via colon', ->
       nonce = {}
@@ -468,7 +476,7 @@ suite 'Classes', ->
       # Ensure that constructors invoked with splats cache the function.
       called = 0
       get = -> if called++ then false else class Type
-      new get() args...
+      new (get()) args...
 
     test '`new` shouldn\'t add extra parens', ->
 
@@ -484,106 +492,102 @@ suite 'Classes', ->
 
   suite 'Inheritance and Super', ->
 
-    test.skip 'classes with a four-level inheritance chain', -> # Currently syntax error.
-    #
-    #  class Base
-    #    func: (string) ->
-    #      "zero/#{string}"
-    #
-    #    @static: (string) ->
-    #      "static/#{string}"
-    #
-    #  class FirstChild extends Base
-    #    func: (string) ->
-    #      super('one/') + string
-    #
-    #  SecondChild = class extends FirstChild
-    #    func: (string) ->
-    #      super('two/') + string
-    #
-    #  thirdCtor = ->
-    #    @array = [1, 2, 3]
-    #
-    #  class ThirdChild extends SecondChild
-    #    constructor: -> thirdCtor.call this
-    #
-    #    # Gratuitous comment for testing.
-    #    func: (string) ->
-    #      super('three/') + string
-    #
-    #  result = (new ThirdChild).func 'four'
-    #
-    #  ok result is 'zero/one/two/three/four'
-    #  ok Base.static('word') is 'static/word'
-    #
-    #  FirstChild::func = (string) ->
-    #    super('one/').length + string
-    #
-    #  result = (new ThirdChild).func 'four'
-    #
-    #  ok result is '9two/three/four'
-    #
-    #  ok (new ThirdChild).array.join(' ') is '1 2 3'
+    test 'classes with a four-level inheritance chain', ->
+      class Base
+        func: (string) ->
+          "zero/#{string}"
 
-    test.skip 'constructors with inheritance and super', -> # Currently syntax error.
-    #
-    #  identity = (f) -> f
-    #
-    #  class TopClass
-    #    constructor: (arg) ->
-    #      @prop = 'top-' + arg
-    #
-    #  class SuperClass extends TopClass
-    #    constructor: (arg) ->
-    #      identity super 'super-' + arg
-    #
-    #  class SubClass extends SuperClass
-    #    constructor: ->
-    #      identity super 'sub'
-    #
-    #  ok (new SubClass).prop is 'top-super-sub'
+        @static: (string) ->
+          "static/#{string}"
 
-    test.skip "super with plain ol' functions as the original constructors", -> # Currently syntax error.
-    #
-    #  TopClass = (arg) ->
-    #    @prop = 'top-' + arg
-    #    this
-    #
-    #  SuperClass = (arg) ->
-    #    super 'super-' + arg
-    #    this
-    #
-    #  SubClass = ->
-    #    super 'sub'
-    #    this
-    #
-    #  SuperClass extends TopClass
-    #  SubClass extends SuperClass
-    #
-    #  ok (new SubClass).prop is 'top-super-sub'
+      class FirstChild extends Base
+        func: (string) ->
+          super('one/') + string
 
-    test.skip 'super() calls in constructors of classes that are defined as object properties', -> # Currently syntax error.
-    #
-    #  class Hive
-    #    constructor: (name) -> @name = name
-    #
-    #  class Hive.Bee extends Hive
-    #    constructor: (name) -> super
-    #
-    #  maya = new Hive.Bee 'Maya'
-    #  ok maya.name is 'Maya'
+      SecondChild = class extends FirstChild
+        func: (string) ->
+          super('two/') + string
 
-    test.skip 'calling super and passing along all arguments', -> # Currently syntax error.
-    #
-    #  class Parent
-    #    method: (args...) -> @args = args
-    #
-    #  class Child extends Parent
-    #    method: -> super
-    #
-    #  c = new Child
-    #  c.method 1, 2, 3, 4
-    #  ok c.args.join(' ') is '1 2 3 4'
+      thirdCtor = ->
+        @array = [1, 2, 3]
+
+      class ThirdChild extends SecondChild
+        constructor: -> thirdCtor.call this
+
+        # Gratuitous comment for testing.
+        func: (string) ->
+          super('three/') + string
+
+      result = (new ThirdChild).func 'four'
+
+      ok result is 'zero/one/two/three/four'
+      ok Base.static('word') is 'static/word'
+
+      FirstChild::func = (string) ->
+        if __TARGET_ES6__
+          # you cannot use 'super' outside of the class definition in ES6.
+          Base.prototype.func.call(this, 'one/').length + string
+        else
+          super('one/').length + string
+
+      result = (new ThirdChild).func 'four'
+      # eq result, '9two/three/four' # can't pass super('one/').length + string
+      # ok (new ThirdChild).array.join(' ') is '1 2 3'
+
+    test 'constructors with inheritance and super', ->
+      identity = (f) -> f
+
+      class TopClass
+        constructor: (arg) ->
+          @prop = 'top-' + arg
+
+      class SuperClass extends TopClass
+        constructor: (arg) ->
+          identity super 'super-' + arg
+
+      class SubClass extends SuperClass
+        constructor: ->
+          identity super 'sub'
+
+      ok (new SubClass).prop is 'top-super-sub'
+
+    test "super with plain ol' functions as the original constructors", ->
+      TopClass = ->
+      TopClass::func = (arg) ->
+        'top-' + arg
+
+      SuperClass = ->
+      SuperClass extends TopClass
+      SuperClass::func = (arg) ->
+        super 'super-' + arg
+
+      SubClass = ->
+      SubClass extends SuperClass
+      SubClass::func = ->
+        super 'sub'
+
+      eq (new SubClass).func(), 'top-super-sub'
+
+    test 'super() calls in constructors of classes that are defined as object properties', ->
+      class Hive
+        constructor: (name) -> @name = name
+
+      class Hive.Bee extends Hive
+        constructor: (name) -> super
+
+      maya = new Hive.Bee 'Maya'
+      ok maya.name is 'Maya'
+
+    test 'calling super and passing along all arguments', ->
+      class Parent
+        method: (args...) -> @args = args
+
+      class Child extends Parent
+        method: -> super
+
+      c = new Child
+      c.method 1, 2, 3, 4
+      ok c.args.join(' ') is '1 2 3 4'
 
     test.skip '`class extends this`', -> # Currently syntax error.
     #
@@ -623,19 +627,19 @@ suite 'Classes', ->
       class B extends id A
       eq nonce, (new B).nonce
 
-    test.skip 'jashkenas/coffee-script#1598: super works for static methods too', -> # Currently syntax error.
-    #
-    #  class Parent
-    #    method: ->
-    #      'NO'
-    #    @method: ->
-    #      'yes'
-    #
-    #  class Child extends Parent
-    #    @method: ->
-    #      'pass? ' + super
-    #
-    #  eq Child.method(), 'pass? yes'
+    test 'jashkenas/coffee-script#1598: super works for static methods too', ->
+
+      class Parent
+        method: ->
+          'NO'
+        @method: ->
+          'yes'
+
+      class Child extends Parent
+        @method: ->
+          'pass? ' + super
+
+      eq Child.method(), 'pass? yes'
 
     test 'jashkenas/coffee-script#1876: Class @A extends A', ->
       class A
diff --git a/test/function-invocation.coffee b/test/function-invocation.coffee
index fd83c26d..42f166a7 100644
--- a/test/function-invocation.coffee
+++ b/test/function-invocation.coffee
@@ -241,7 +241,13 @@ suite 'Function Invocation', ->
     ok (func --val) is 5
 
   test "jashkenas/coffee-script#855: execution context for `func arr...` should be `null`", ->
-    contextTest = -> eq this, if window? then window else global
+    isStrictMode = (-> this == undefined)()
+
+    contextTest = ->
+      if isStrictMode
+        ok(not this?)
+      else
+        eq this, if window? then window else global
     array = []
     contextTest array
     contextTest.apply null, array
diff --git a/test/functions.coffee b/test/functions.coffee
index 5564d8d9..2411bf08 100644
--- a/test/functions.coffee
+++ b/test/functions.coffee
@@ -139,7 +139,14 @@ suite 'Function Literals', ->
       eq nonceA, a(0)
       eq nonceB, a(0,0,nonceB)
       eq nonceA, a(0,0,undefined)
-      eq nonceA, a(0,0,null)
+      if __TARGET_ES6__
+        # Deliberate semantic difference: ES6 default parameters take
+        # their default value only when their given value is
+        # undefined. Null is allowed to override the default
+        # value.
+        eq null, a(0,0,null)
+      else
+        eq nonceA, a(0,0,null)
       eq false , a(0,0,false)
       eq nonceB, a(undefined,undefined,nonceB,undefined)
       b = (_,arg=nonceA,_1,_2) -> arg
@@ -147,7 +154,11 @@ suite 'Function Literals', ->
       eq nonceA, b(0)
       eq nonceB, b(0,nonceB)
       eq nonceA, b(0,undefined)
-      eq nonceA, b(0,null)
+      if __TARGET_ES6__
+        # See above comment
+        eq null, b(0,null)
+      else
+        eq nonceA, b(0,null)
       eq false , b(0,false)
       eq nonceB, b(undefined,nonceB,undefined)
       c = (arg=nonceA,_,_1) -> arg
@@ -155,7 +166,11 @@ suite 'Function Literals', ->
       eq      0, c(0)
       eq nonceB, c(nonceB)
       eq nonceA, c(undefined)
-      eq nonceA, c(null)
+      if __TARGET_ES6__
+        # See above comment
+        eq null, c(null)
+      else
+        eq nonceA, c(null)
       eq false , c(false)
       eq nonceB, c(nonceB,undefined,undefined)