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Update C# grammar for additional C# 7 and C# 8 features

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Maikel Steneker committed 2020-12-10 13:21:48 +01:00
1 parent 5fffaa90f5
commit 769cf5b316
1 file changed
+13 -7
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pmd-cs/src/main/antlr4/net/sourceforge/pmd/lang/cs/antlr4/CSharpLexer.g4
+13 -7
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@@ -19,7 +19,8 @@ private boolean verbatium;
BYTE_ORDER_MARK: '\u00EF\u00BB\u00BF';
SINGLE_LINE_DOC_COMMENT: '///' InputCharacter* -> channel(COMMENTS_CHANNEL);
DELIMITED_DOC_COMMENT: '/**' .*? '*/' -> channel(COMMENTS_CHANNEL);
EMPTY_DELIMITED_DOC_COMMENT: '/***/' -> channel(COMMENTS_CHANNEL);
DELIMITED_DOC_COMMENT: '/**' ~'/' .*? '*/' -> channel(COMMENTS_CHANNEL);
SINGLE_LINE_COMMENT: '//' InputCharacter* -> channel(COMMENTS_CHANNEL);
DELIMITED_COMMENT: '/*' .*? '*/' -> channel(COMMENTS_CHANNEL);
@@ -119,6 +120,7 @@ TYPEOF: 'typeof';
UINT: 'uint';
ULONG: 'ulong';
UNCHECKED: 'unchecked';
UNMANAGED: 'unmanaged';
UNSAFE: 'unsafe';
USHORT: 'ushort';
USING: 'using';
@@ -138,10 +140,11 @@ IDENTIFIER: '@'? IdentifierOrKeyword;
//B.1.8 Literals
// 0.Equals() would be parsed as an invalid real (1. branch) causing a lexer error
LITERAL_ACCESS: [0-9]+ IntegerTypeSuffix? '.' '@'? IdentifierOrKeyword;
INTEGER_LITERAL: [0-9]+ IntegerTypeSuffix?;
HEX_INTEGER_LITERAL: '0' [xX] HexDigit+ IntegerTypeSuffix?;
REAL_LITERAL: [0-9]* '.' [0-9]+ ExponentPart? [FfDdMm]? | [0-9]+ ([FfDdMm] | ExponentPart [FfDdMm]?);
LITERAL_ACCESS: [0-9] ('_'* [0-9])* IntegerTypeSuffix? '.' '@'? IdentifierOrKeyword;
INTEGER_LITERAL: [0-9] ('_'* [0-9])* IntegerTypeSuffix?;
HEX_INTEGER_LITERAL: '0' [xX] ('_'* HexDigit)+ IntegerTypeSuffix?;
BIN_INTEGER_LITERAL: '0' [bB] ('_'* [01])+ IntegerTypeSuffix?;
REAL_LITERAL: ([0-9] ('_'* [0-9])*)? '.' [0-9] ('_'* [0-9])* ExponentPart? [FfDdMm]? | [0-9] ('_'* [0-9])* ([FfDdMm] | ExponentPart [FfDdMm]?);
CHARACTER_LITERAL: '\'' (~['\\\r\n\u0085\u2028\u2029] | CommonCharacter) '\'';
REGULAR_STRING: '"' (~["\\\r\n\u0085\u2028\u2029] | CommonCharacter)* '"';
@@ -234,6 +237,8 @@ OP_OR_ASSIGNMENT: '|=';
OP_XOR_ASSIGNMENT: '^=';
OP_LEFT_SHIFT: '<<';
OP_LEFT_SHIFT_ASSIGNMENT: '<<=';
OP_COALESCING_ASSIGNMENT: '??=';
OP_RANGE: '..';
// https://msdn.microsoft.com/en-us/library/dn961160.aspx
mode INTERPOLATION_STRING;
@@ -271,6 +276,7 @@ WARNING: 'warning' Whitespace+ -> channel(DIREC
REGION: 'region' Whitespace* -> channel(DIRECTIVE), mode(DIRECTIVE_TEXT);
ENDREGION: 'endregion' Whitespace* -> channel(DIRECTIVE), mode(DIRECTIVE_TEXT);
PRAGMA: 'pragma' Whitespace+ -> channel(DIRECTIVE), mode(DIRECTIVE_TEXT);
NULLABLE: 'nullable' Whitespace+ -> channel(DIRECTIVE), mode(DIRECTIVE_TEXT);
DIRECTIVE_DEFAULT: 'default' -> channel(DIRECTIVE), type(DEFAULT);
DIRECTIVE_HIDDEN: 'hidden' -> channel(DIRECTIVE);
DIRECTIVE_OPEN_PARENS: '(' -> channel(DIRECTIVE), type(OPEN_PARENS);
@@ -303,7 +309,7 @@ fragment NewLineCharacter
;
fragment IntegerTypeSuffix: [lL]? [uU] | [uU]? [lL];
fragment ExponentPart: [eE] ('+' | '-')? [0-9]+;
fragment ExponentPart: [eE] ('+' | '-')? [0-9] ('_'* [0-9])*;
fragment CommonCharacter
: SimpleEscapeSequence
@@ -1102,4 +1108,4 @@ fragment UnicodeClassND
| '\uaa50'..'\uaa59'
| '\uabf0'..'\uabf9'
| '\uff10'..'\uff19'
;
;