Clippy

benches/keyword.rs

@@ -146,7 +146,7 @@ static VALUES: [&[u8]; 136] = [
 #[bench]
 fn bench_keyword_token(b: &mut Bencher) {
     b.iter(|| {
-        for value in VALUES.iter() {
+        for value in &VALUES {
             assert!(keyword_token(value).is_some())
         }
     });

examples/sql_tokens.rs

@@ -32,7 +32,7 @@ fn main() {
                     //TK_ID => debug_assert!(),
                     //TK_VARIABLE => debug_assert!(),
                     TK_BLOB => debug_assert!(
-                        token.len() % 2 == 0 && token.iter().all(|b| b.is_ascii_hexdigit())
+                        token.len() % 2 == 0 && token.iter().all(u8::is_ascii_hexdigit)
                     ),
                     TK_INTEGER => {
                         if token.len() > 2
@@ -50,7 +50,7 @@ fn main() {
                             if res.is_err() {
                                 eprintln!("Err: {} in {}", res.unwrap_err(), arg);
                             }*/
-                            debug_assert!(token.iter().all(|b| b.is_ascii_digit()))
+                            debug_assert!(token.iter().all(u8::is_ascii_digit))
                         }
                     }
                     TK_FLOAT => {

src/dialect/mod.rs

@@ -48,7 +48,7 @@ pub(crate) const MAX_KEYWORD_LEN: usize = 17;
 pub fn keyword_token(word: &[u8]) -> Option<TokenType> {
     KEYWORDS
         .get(UncasedStr::new(unsafe { str::from_utf8_unchecked(word) }))
-        .cloned()
+        .copied()
 }
 
 pub(crate) fn is_identifier(name: &str) -> bool {

src/lexer/scan.rs

@@ -60,8 +60,8 @@ pub struct Scanner<S: Splitter> {
 
 impl<S: Splitter> Scanner<S> {
     /// Constructor
-    pub fn new(splitter: S) -> Scanner<S> {
-        Scanner {
+    pub fn new(splitter: S) -> Self {
+        Self {
             offset: 0,
             mark: (0, 0, 0),
             splitter,

src/lexer/sql/error.rs

@@ -36,60 +36,60 @@ pub enum Error {
 impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match *self {
-            Error::Io(ref err) => err.fmt(f),
-            Error::UnrecognizedToken(pos) => write!(f, "unrecognized token at {:?}", pos.unwrap()),
-            Error::UnterminatedLiteral(pos) => {
+            Self::Io(ref err) => err.fmt(f),
+            Self::UnrecognizedToken(pos) => write!(f, "unrecognized token at {:?}", pos.unwrap()),
+            Self::UnterminatedLiteral(pos) => {
                 write!(f, "non-terminated literal at {:?}", pos.unwrap())
             }
-            Error::UnterminatedBracket(pos) => {
+            Self::UnterminatedBracket(pos) => {
                 write!(f, "non-terminated bracket at {:?}", pos.unwrap())
             }
-            Error::UnterminatedBlockComment(pos) => {
+            Self::UnterminatedBlockComment(pos) => {
                 write!(f, "non-terminated block comment at {:?}", pos.unwrap())
             }
-            Error::BadVariableName(pos) => write!(f, "bad variable name at {:?}", pos.unwrap()),
-            Error::BadNumber(pos) => write!(f, "bad number at {:?}", pos.unwrap()),
-            Error::ExpectedEqualsSign(pos) => write!(f, "expected = sign at {:?}", pos.unwrap()),
-            Error::MalformedBlobLiteral(pos) => {
+            Self::BadVariableName(pos) => write!(f, "bad variable name at {:?}", pos.unwrap()),
+            Self::BadNumber(pos) => write!(f, "bad number at {:?}", pos.unwrap()),
+            Self::ExpectedEqualsSign(pos) => write!(f, "expected = sign at {:?}", pos.unwrap()),
+            Self::MalformedBlobLiteral(pos) => {
                 write!(f, "malformed blob literal at {:?}", pos.unwrap())
             }
-            Error::MalformedHexInteger(pos) => {
+            Self::MalformedHexInteger(pos) => {
                 write!(f, "malformed hex integer at {:?}", pos.unwrap())
             }
-            Error::ParserError(ref msg, Some(pos)) => write!(f, "{} at {:?}", msg, pos),
-            Error::ParserError(ref msg, _) => write!(f, "{}", msg),
+            Self::ParserError(ref msg, Some(pos)) => write!(f, "{msg} at {pos:?}"),
+            Self::ParserError(ref msg, _) => write!(f, "{msg}"),
         }
     }
 }
 
 impl error::Error for Error {}
 
 impl From<io::Error> for Error {
-    fn from(err: io::Error) -> Error {
-        Error::Io(err)
+    fn from(err: io::Error) -> Self {
+        Self::Io(err)
     }
 }
 
 impl From<ParserError> for Error {
-    fn from(err: ParserError) -> Error {
-        Error::ParserError(err, None)
+    fn from(err: ParserError) -> Self {
+        Self::ParserError(err, None)
     }
 }
 
 impl ScanError for Error {
     fn position(&mut self, line: u64, column: usize) {
         match *self {
-            Error::Io(_) => {}
-            Error::UnrecognizedToken(ref mut pos) => *pos = Some((line, column)),
-            Error::UnterminatedLiteral(ref mut pos) => *pos = Some((line, column)),
-            Error::UnterminatedBracket(ref mut pos) => *pos = Some((line, column)),
-            Error::UnterminatedBlockComment(ref mut pos) => *pos = Some((line, column)),
-            Error::BadVariableName(ref mut pos) => *pos = Some((line, column)),
-            Error::BadNumber(ref mut pos) => *pos = Some((line, column)),
-            Error::ExpectedEqualsSign(ref mut pos) => *pos = Some((line, column)),
-            Error::MalformedBlobLiteral(ref mut pos) => *pos = Some((line, column)),
-            Error::MalformedHexInteger(ref mut pos) => *pos = Some((line, column)),
-            Error::ParserError(_, ref mut pos) => *pos = Some((line, column)),
+            Self::Io(_) => {}
+            Self::UnrecognizedToken(ref mut pos) => *pos = Some((line, column)),
+            Self::UnterminatedLiteral(ref mut pos) => *pos = Some((line, column)),
+            Self::UnterminatedBracket(ref mut pos) => *pos = Some((line, column)),
+            Self::UnterminatedBlockComment(ref mut pos) => *pos = Some((line, column)),
+            Self::BadVariableName(ref mut pos) => *pos = Some((line, column)),
+            Self::BadNumber(ref mut pos) => *pos = Some((line, column)),
+            Self::ExpectedEqualsSign(ref mut pos) => *pos = Some((line, column)),
+            Self::MalformedBlobLiteral(ref mut pos) => *pos = Some((line, column)),
+            Self::MalformedHexInteger(ref mut pos) => *pos = Some((line, column)),
+            Self::ParserError(_, ref mut pos) => *pos = Some((line, column)),
         }
     }
 }

src/lexer/sql/mod.rs

@@ -33,7 +33,7 @@ pub struct Parser<'input> {
 
 impl<'input> Parser<'input> {
     /// Constructor
-    pub fn new(input: &'input [u8]) -> Parser<'input> {
+    pub fn new(input: &'input [u8]) -> Self {
         let lexer = Tokenizer::new();
         let scanner = Scanner::new(lexer);
         let ctx = Context::new(input);
@@ -253,8 +253,8 @@ pub struct Tokenizer {}
 
 impl Tokenizer {
     /// Constructor
-    pub fn new() -> Tokenizer {
-        Tokenizer {}
+    pub fn new() -> Self {
+        Self {}
     }
 }
 
@@ -401,7 +401,7 @@ impl Splitter for Tokenizer {
             b',' => Ok((Some((&data[..1], TK_COMMA)), 1)),
             b'&' => Ok((Some((&data[..1], TK_BITAND)), 1)),
             b'~' => Ok((Some((&data[..1], TK_BITNOT)), 1)),
-            quote @ b'`' | quote @ b'\'' | quote @ b'"' => literal(data, quote),
+            quote @ (b'`' | b'\'' | b'"') => literal(data, quote),
             b'.' => {
                 if let Some(b) = data.get(1) {
                     if b.is_ascii_digit() {
@@ -417,7 +417,7 @@ impl Splitter for Tokenizer {
             b'[' => {
                 if let Some(i) = memchr(b']', data) {
                     // Keep original quotes / '[' ... ’]'
-                    Ok((Some((&data[0..i + 1], TK_ID)), i + 1))
+                    Ok((Some((&data[0..=i], TK_ID)), i + 1))
                 } else {
                     Err(Error::UnterminatedBracket(None))
                 }

src/lexer/sql/test.rs

@@ -96,7 +96,7 @@ fn vtab_args() -> Result<(), Error> {
 #[test]
 fn only_semicolons_no_statements() {
     let sqls = ["", ";", ";;;"];
-    for sql in sqls.iter() {
+    for sql in &sqls {
         let r = parse(sql.as_bytes());
         assert_eq!(r.unwrap(), None);
     }
@@ -110,7 +110,7 @@ fn extra_semicolons_between_statements() {
         "; SELECT 1; SELECT 2",
         ";; SELECT 1;; SELECT 2;;",
     ];
-    for sql in sqls.iter() {
+    for sql in &sqls {
         let mut parser = Parser::new(sql.as_bytes());
         assert!(matches!(
             parser.next().unwrap(),
@@ -132,7 +132,7 @@ fn extra_comments_between_statements() {
         "/* abc */; SELECT 1 /* def */; SELECT 2 /* ghj */",
         "/* abc */;; SELECT 1;/* def */; SELECT 2; /* ghj */; /* klm */",
     ];
-    for sql in sqls.iter() {
+    for sql in &sqls {
         let mut parser = Parser::new(sql.as_bytes());
         assert!(matches!(
             parser.next().unwrap(),