Primary rule should accept this keyword (apache#5791)

As in `String(this == "x")`.
tkobayas · Jun 11, 2024 · 3a7d63c · 3a7d63c
1 parent c0004f3
commit 3a7d63c
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diff --git a/...drools-drl-parser-tests/src/test/java/org/drools/drl/parser/antlr4/DRLExprParserTest.java b/...drools-drl-parser-tests/src/test/java/org/drools/drl/parser/antlr4/DRLExprParserTest.java
@@ -317,6 +317,7 @@ public void testNestedExpression() throws Exception {
             "(long) l",
             "(float) f",
             "(double) d",
+            "this",
             "<Type>this()",
             "Object[][].class.getName()",
             "new<Integer>ArrayList<Integer>()"

diff --git a/drools-drl/drools-drl-parser/src/main/antlr4/org/drools/drl/parser/antlr4/DRL6Expressions.g4 b/drools-drl/drools-drl-parser/src/main/antlr4/org/drools/drl/parser/antlr4/DRL6Expressions.g4
@@ -671,7 +671,7 @@ primary returns [BaseDescr result]
     :	expr=parExpression {  if( buildDescr  ) { $result = $expr.result; }  }
     |   nonWildcardTypeArguments (explicitGenericInvocationSuffix | this_key arguments)
     |   literal { if( buildDescr  ) { $result = new AtomicExprDescr( $literal.text, true ); }  }
-    //|   this_key ({!helper.validateSpecialID(2)}? DOT IDENTIFIER)* ({helper.validateIdentifierSufix()}? identifierSuffix)?
+    |   this_key (DOT drlIdentifier)* identifierSuffix?
     |   super_key superSuffix
     |   new_key creator
     |   primitiveType (LBRACK RBRACK)* DOT class_key