518 lines
16 KiB
Text
518 lines
16 KiB
Text
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Root <- skip container_doc_comment? ContainerMembers eof
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ContainerMembers <- ContainerDeclarations (ContainerField COMMA)* (ContainerField / ContainerDeclarations)
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ContainerDeclarations
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<- TestDecl ContainerDeclarations
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/ TopLevelComptime ContainerDeclarations
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/ doc_comment? KEYWORD_pub? TopLevelDecl ContainerDeclarations
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TestDecl <- doc_comment? KEYWORD_test STRINGLITERALSINGLE? Block
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TopLevelComptime <- doc_comment? KEYWORD_comptime BlockExpr
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TopLevelDecl
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<- (KEYWORD_export / KEYWORD_extern STRINGLITERALSINGLE? / (KEYWORD_inline / KEYWORD_noinline))? FnProto (SEMICOLON / Block)
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/ (KEYWORD_export / KEYWORD_extern STRINGLITERALSINGLE?)? KEYWORD_threadlocal? VarDecl
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/ KEYWORD_usingnamespace Expr SEMICOLON
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FnProto <- KEYWORD_fn IDENTIFIER? LPAREN ParamDeclList RPAREN ByteAlign? LinkSection? CallConv? EXCLAMATIONMARK? TypeExpr
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VarDecl <- (KEYWORD_const / KEYWORD_var) IDENTIFIER (COLON TypeExpr)? ByteAlign? LinkSection? (EQUAL Expr)? SEMICOLON
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ContainerField <- doc_comment? KEYWORD_comptime? IDENTIFIER (COLON (KEYWORD_anytype / TypeExpr) ByteAlign?)? (EQUAL Expr)?
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Statement
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<- KEYWORD_comptime? VarDecl
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/ KEYWORD_comptime BlockExprStatement
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/ KEYWORD_nosuspend BlockExprStatement
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/ KEYWORD_suspend BlockExprStatement
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/ KEYWORD_defer BlockExprStatement
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/ KEYWORD_errdefer Payload? BlockExprStatement
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/ IfStatement
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/ LabeledStatement
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/ SwitchExpr
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/ AssignExpr SEMICOLON
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IfStatement
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<- IfPrefix BlockExpr ( KEYWORD_else Payload? Statement )?
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/ IfPrefix AssignExpr ( SEMICOLON / KEYWORD_else Payload? Statement )
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LabeledStatement <- BlockLabel? (Block / LoopStatement)
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LoopStatement <- KEYWORD_inline? (ForStatement / WhileStatement)
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ForStatement
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<- ForPrefix BlockExpr ( KEYWORD_else Statement )?
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/ ForPrefix AssignExpr ( SEMICOLON / KEYWORD_else Statement )
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WhileStatement
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<- WhilePrefix BlockExpr ( KEYWORD_else Payload? Statement )?
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/ WhilePrefix AssignExpr ( SEMICOLON / KEYWORD_else Payload? Statement )
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BlockExprStatement
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<- BlockExpr
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/ AssignExpr SEMICOLON
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BlockExpr <- BlockLabel? Block
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AssignExpr <- Expr (AssignOp Expr)?
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Expr <- BoolOrExpr
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BoolOrExpr <- BoolAndExpr (KEYWORD_or BoolAndExpr)*
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BoolAndExpr <- CompareExpr (KEYWORD_and CompareExpr)*
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CompareExpr <- BitwiseExpr (CompareOp BitwiseExpr)?
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BitwiseExpr <- BitShiftExpr (BitwiseOp BitShiftExpr)*
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BitShiftExpr <- AdditionExpr (BitShiftOp AdditionExpr)*
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AdditionExpr <- MultiplyExpr (AdditionOp MultiplyExpr)*
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MultiplyExpr <- PrefixExpr (MultiplyOp PrefixExpr)*
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PrefixExpr <- PrefixOp* PrimaryExpr
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PrimaryExpr
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<- AsmExpr
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/ IfExpr
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/ KEYWORD_break BreakLabel? Expr?
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/ KEYWORD_comptime Expr
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/ KEYWORD_nosuspend Expr
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/ KEYWORD_continue BreakLabel?
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/ KEYWORD_resume Expr
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/ KEYWORD_return Expr?
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/ BlockLabel? LoopExpr
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/ Block
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/ CurlySuffixExpr
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IfExpr <- IfPrefix Expr (KEYWORD_else Payload? Expr)?
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Block <- LBRACE Statement* RBRACE
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LoopExpr <- KEYWORD_inline? (ForExpr / WhileExpr)
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ForExpr <- ForPrefix Expr (KEYWORD_else Expr)?
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WhileExpr <- WhilePrefix Expr (KEYWORD_else Payload? Expr)?
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CurlySuffixExpr <- TypeExpr InitList?
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InitList
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<- LBRACE FieldInit (COMMA FieldInit)* COMMA? RBRACE
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/ LBRACE Expr (COMMA Expr)* COMMA? RBRACE
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/ LBRACE RBRACE
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TypeExpr <- PrefixTypeOp* ErrorUnionExpr
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ErrorUnionExpr <- SuffixExpr (EXCLAMATIONMARK TypeExpr)?
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SuffixExpr
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<- KEYWORD_async PrimaryTypeExpr SuffixOp* FnCallArguments
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/ PrimaryTypeExpr (SuffixOp / FnCallArguments)*
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PrimaryTypeExpr
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<- BUILTINIDENTIFIER FnCallArguments
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/ CHAR_LITERAL
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/ ContainerDecl
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/ DOT IDENTIFIER
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/ DOT InitList
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/ ErrorSetDecl
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/ FLOAT
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/ FnProto
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/ GroupedExpr
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/ LabeledTypeExpr
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/ IDENTIFIER
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/ IfTypeExpr
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/ INTEGER
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/ KEYWORD_comptime TypeExpr
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/ KEYWORD_error DOT IDENTIFIER
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/ KEYWORD_anyframe
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/ KEYWORD_unreachable
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/ STRINGLITERAL
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/ SwitchExpr
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ContainerDecl <- (KEYWORD_extern / KEYWORD_packed)? ContainerDeclAuto
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ErrorSetDecl <- KEYWORD_error LBRACE IdentifierList RBRACE
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GroupedExpr <- LPAREN Expr RPAREN
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IfTypeExpr <- IfPrefix TypeExpr (KEYWORD_else Payload? TypeExpr)?
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LabeledTypeExpr
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<- BlockLabel Block
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/ BlockLabel? LoopTypeExpr
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LoopTypeExpr <- KEYWORD_inline? (ForTypeExpr / WhileTypeExpr)
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ForTypeExpr <- ForPrefix TypeExpr (KEYWORD_else TypeExpr)?
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WhileTypeExpr <- WhilePrefix TypeExpr (KEYWORD_else Payload? TypeExpr)?
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SwitchExpr <- KEYWORD_switch LPAREN Expr RPAREN LBRACE SwitchProngList RBRACE
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AsmExpr <- KEYWORD_asm KEYWORD_volatile? LPAREN Expr AsmOutput? RPAREN
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AsmOutput <- COLON AsmOutputList AsmInput?
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AsmOutputItem <- LBRACKET IDENTIFIER RBRACKET STRINGLITERAL LPAREN (MINUSRARROW TypeExpr / IDENTIFIER) RPAREN
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AsmInput <- COLON AsmInputList AsmClobbers?
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AsmInputItem <- LBRACKET IDENTIFIER RBRACKET STRINGLITERAL LPAREN Expr RPAREN
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AsmClobbers <- COLON StringList
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BreakLabel <- COLON IDENTIFIER
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BlockLabel <- IDENTIFIER COLON
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FieldInit <- DOT IDENTIFIER EQUAL Expr
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WhileContinueExpr <- COLON LPAREN AssignExpr RPAREN
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LinkSection <- KEYWORD_linksection LPAREN Expr RPAREN
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CallConv <- KEYWORD_callconv LPAREN Expr RPAREN
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ParamDecl
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<- doc_comment? (KEYWORD_noalias / KEYWORD_comptime)? (IDENTIFIER COLON)? ParamType
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/ DOT3
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ParamType
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<- KEYWORD_anytype
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/ TypeExpr
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IfPrefix <- KEYWORD_if LPAREN Expr RPAREN PtrPayload?
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WhilePrefix <- KEYWORD_while LPAREN Expr RPAREN PtrPayload? WhileContinueExpr?
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ForPrefix <- KEYWORD_for LPAREN Expr RPAREN PtrIndexPayload
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Payload <- PIPE IDENTIFIER PIPE
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PtrPayload <- PIPE ASTERISK? IDENTIFIER PIPE
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PtrIndexPayload <- PIPE ASTERISK? IDENTIFIER (COMMA IDENTIFIER)? PIPE
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SwitchProng <- SwitchCase EQUALRARROW PtrPayload? AssignExpr
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SwitchCase
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<- SwitchItem (COMMA SwitchItem)* COMMA?
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/ KEYWORD_else
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SwitchItem <- Expr (DOT3 Expr)?
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AssignOp
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<- ASTERISKEQUAL
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/ SLASHEQUAL
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/ PERCENTEQUAL
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/ PLUSEQUAL
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/ MINUSEQUAL
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/ LARROW2EQUAL
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/ RARROW2EQUAL
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/ AMPERSANDEQUAL
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/ CARETEQUAL
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/ PIPEEQUAL
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/ ASTERISKPERCENTEQUAL
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/ PLUSPERCENTEQUAL
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/ MINUSPERCENTEQUAL
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/ EQUAL
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CompareOp
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<- EQUALEQUAL
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/ EXCLAMATIONMARKEQUAL
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/ LARROW
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/ RARROW
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/ LARROWEQUAL
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/ RARROWEQUAL
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BitwiseOp
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<- AMPERSAND
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/ CARET
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/ PIPE
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/ KEYWORD_orelse
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/ KEYWORD_catch Payload?
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BitShiftOp
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<- LARROW2
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/ RARROW2
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AdditionOp
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<- PLUS
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/ MINUS
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/ PLUS2
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/ PLUSPERCENT
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/ MINUSPERCENT
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MultiplyOp
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<- PIPE2
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/ ASTERISK
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/ SLASH
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/ PERCENT
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/ ASTERISK2
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/ ASTERISKPERCENT
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PrefixOp
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<- EXCLAMATIONMARK
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/ MINUS
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/ TILDE
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/ MINUSPERCENT
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/ AMPERSAND
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/ KEYWORD_try
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/ KEYWORD_await
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PrefixTypeOp
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<- QUESTIONMARK
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/ KEYWORD_anyframe MINUSRARROW
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/ SliceTypeStart (ByteAlign / KEYWORD_const / KEYWORD_volatile / KEYWORD_allowzero)*
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/ PtrTypeStart (KEYWORD_align LPAREN Expr (COLON INTEGER COLON INTEGER)? RPAREN / KEYWORD_const / KEYWORD_volatile / KEYWORD_allowzero)*
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/ ArrayTypeStart
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SuffixOp
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<- LBRACKET Expr (DOT2 (Expr? (COLON Expr)?)?)? RBRACKET
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/ DOT IDENTIFIER
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/ DOTASTERISK
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/ DOTQUESTIONMARK
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FnCallArguments <- LPAREN ExprList RPAREN
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SliceTypeStart <- LBRACKET (COLON Expr)? RBRACKET
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PtrTypeStart
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<- ASTERISK
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/ ASTERISK2
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/ LBRACKET ASTERISK (LETTERC / COLON Expr)? RBRACKET
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ArrayTypeStart <- LBRACKET Expr (COLON Expr)? RBRACKET
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ContainerDeclAuto <- ContainerDeclType LBRACE container_doc_comment? ContainerMembers RBRACE
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ContainerDeclType
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<- KEYWORD_struct
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/ KEYWORD_opaque
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/ KEYWORD_enum (LPAREN Expr RPAREN)?
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/ KEYWORD_union (LPAREN (KEYWORD_enum (LPAREN Expr RPAREN)? / Expr) RPAREN)?
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ByteAlign <- KEYWORD_align LPAREN Expr RPAREN
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IdentifierList <- (doc_comment? IDENTIFIER COMMA)* (doc_comment? IDENTIFIER)?
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SwitchProngList <- (SwitchProng COMMA)* SwitchProng?
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AsmOutputList <- (AsmOutputItem COMMA)* AsmOutputItem?
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AsmInputList <- (AsmInputItem COMMA)* AsmInputItem?
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StringList <- (STRINGLITERAL COMMA)* STRINGLITERAL?
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ParamDeclList <- (ParamDecl COMMA)* ParamDecl?
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ExprList <- (Expr COMMA)* Expr?
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eof <- !.
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bin <- [01]
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bin_ <- '_'? bin
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oct <- [0-7]
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oct_ <- '_'? oct
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hex <- [0-9a-fA-F]
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hex_ <- '_'? hex
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dec <- [0-9]
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dec_ <- '_'? dec
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bin_int <- bin bin_*
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oct_int <- oct oct_*
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dec_int <- dec dec_*
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hex_int <- hex hex_*
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ox80_oxBF <- [\200-\277]
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oxF4 <- '\364'
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ox80_ox8F <- [\200-\217]
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oxF1_oxF3 <- [\361-\363]
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oxF0 <- '\360'
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ox90_0xBF <- [\220-\277]
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oxEE_oxEF <- [\356-\357]
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oxED <- '\355'
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ox80_ox9F <- [\200-\237]
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oxE1_oxEC <- [\341-\354]
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oxE0 <- '\340'
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oxA0_oxBF <- [\240-\277]
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oxC2_oxDF <- [\302-\337]
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mb_utf8_literal <-
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oxF4 ox80_ox8F ox80_oxBF ox80_oxBF
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/ oxF1_oxF3 ox80_oxBF ox80_oxBF ox80_oxBF
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/ oxF0 ox90_0xBF ox80_oxBF ox80_oxBF
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/ oxEE_oxEF ox80_oxBF ox80_oxBF
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/ oxED ox80_ox9F ox80_oxBF
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/ oxE1_oxEC ox80_oxBF ox80_oxBF
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/ oxE0 oxA0_oxBF ox80_oxBF
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/ oxC2_oxDF ox80_oxBF
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ascii_char_not_nl_slash_squote <- [\000-\011\013-\046-\050-\133\135-\177]
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char_escape
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<- "\\x" hex hex
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/ "\\u{" hex+ "}"
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/ "\\" [nr\\t'"]
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char_char
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<- mb_utf8_literal
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/ char_escape
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/ ascii_char_not_nl_slash_squote
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string_char
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<- char_escape
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/ [^\\"\n]
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container_doc_comment <- ('//!' [^\n]* [ \n]*)+
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doc_comment <- ('///' [^\n]* [ \n]*)+
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line_comment <- '//' ![!/][^\n]* / '////' [^\n]*
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line_string <- ("\\\\" [^\n]* [ \n]*)+
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skip <- ([ \n] / line_comment)*
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CHAR_LITERAL <- "'" char_char "'" skip
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FLOAT
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<- "0x" hex_int "." hex_int ([pP] [-+]? dec_int)? skip
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/ dec_int "." dec_int ([eE] [-+]? dec_int)? skip
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/ "0x" hex_int [pP] [-+]? dec_int skip
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/ dec_int [eE] [-+]? dec_int skip
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INTEGER
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<- "0b" bin_int skip
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|
/ "0o" oct_int skip
|
||
|
|
/ "0x" hex_int skip
|
||
|
|
/ dec_int skip
|
||
|
|
STRINGLITERALSINGLE <- "\"" string_char* "\"" skip
|
||
|
|
STRINGLITERAL
|
||
|
|
<- STRINGLITERALSINGLE
|
||
|
|
/ (line_string skip)+
|
||
|
|
IDENTIFIER
|
||
|
|
<- !keyword [A-Za-z_] [A-Za-z0-9_]* skip
|
||
|
|
/ "@\"" string_char* "\"" skip
|
||
|
|
BUILTINIDENTIFIER <- "@"[A-Za-z_][A-Za-z0-9_]* skip
|
||
|
|
|
||
|
|
|
||
|
|
AMPERSAND <- '&' ![=] skip
|
||
|
|
AMPERSANDEQUAL <- '&=' skip
|
||
|
|
ASTERISK <- '*' ![*%=] skip
|
||
|
|
ASTERISK2 <- '**' skip
|
||
|
|
ASTERISKEQUAL <- '*=' skip
|
||
|
|
ASTERISKPERCENT <- '*%' ![=] skip
|
||
|
|
ASTERISKPERCENTEQUAL <- '*%=' skip
|
||
|
|
CARET <- '^' ![=] skip
|
||
|
|
CARETEQUAL <- '^=' skip
|
||
|
|
COLON <- ':' skip
|
||
|
|
COMMA <- ',' skip
|
||
|
|
DOT <- '.' ![*.?] skip
|
||
|
|
DOT2 <- '..' ![.] skip
|
||
|
|
DOT3 <- '...' skip
|
||
|
|
DOTASTERISK <- '.*' skip
|
||
|
|
DOTQUESTIONMARK <- '.?' skip
|
||
|
|
EQUAL <- '=' ![>=] skip
|
||
|
|
EQUALEQUAL <- '==' skip
|
||
|
|
EQUALRARROW <- '=>' skip
|
||
|
|
EXCLAMATIONMARK <- '!' ![=] skip
|
||
|
|
EXCLAMATIONMARKEQUAL <- '!=' skip
|
||
|
|
LARROW <- '<' ![<=] skip
|
||
|
|
LARROW2 <- '<<' ![=] skip
|
||
|
|
LARROW2EQUAL <- '<<=' skip
|
||
|
|
LARROWEQUAL <- '<=' skip
|
||
|
|
LBRACE <- '{' skip
|
||
|
|
LBRACKET <- '[' skip
|
||
|
|
LPAREN <- '(' skip
|
||
|
|
MINUS <- '-' ![%=>] skip
|
||
|
|
MINUSEQUAL <- '-=' skip
|
||
|
|
MINUSPERCENT <- '-%' ![=] skip
|
||
|
|
MINUSPERCENTEQUAL <- '-%=' skip
|
||
|
|
MINUSRARROW <- '->' skip
|
||
|
|
PERCENT <- '%' ![=] skip
|
||
|
|
PERCENTEQUAL <- '%=' skip
|
||
|
|
PIPE <- '|' ![|=] skip
|
||
|
|
PIPE2 <- '||' skip
|
||
|
|
PIPEEQUAL <- '|=' skip
|
||
|
|
PLUS <- '+' ![%+=] skip
|
||
|
|
PLUS2 <- '++' skip
|
||
|
|
PLUSEQUAL <- '+=' skip
|
||
|
|
PLUSPERCENT <- '+%' ![=] skip
|
||
|
|
PLUSPERCENTEQUAL <- '+%=' skip
|
||
|
|
LETTERC <- 'c' skip
|
||
|
|
QUESTIONMARK <- '?' skip
|
||
|
|
RARROW <- '>' ![>=] skip
|
||
|
|
RARROW2 <- '>>' ![=] skip
|
||
|
|
RARROW2EQUAL <- '>>=' skip
|
||
|
|
RARROWEQUAL <- '>=' skip
|
||
|
|
RBRACE <- '}' skip
|
||
|
|
RBRACKET <- ']' skip
|
||
|
|
RPAREN <- ')' skip
|
||
|
|
SEMICOLON <- ';' skip
|
||
|
|
SLASH <- '/' ![=] skip
|
||
|
|
SLASHEQUAL <- '/=' skip
|
||
|
|
TILDE <- '~' skip
|
||
|
|
|
||
|
|
end_of_word <- ![a-zA-Z0-9_] skip
|
||
|
|
KEYWORD_align <- 'align' end_of_word
|
||
|
|
KEYWORD_allowzero <- 'allowzero' end_of_word
|
||
|
|
KEYWORD_and <- 'and' end_of_word
|
||
|
|
KEYWORD_anyframe <- 'anyframe' end_of_word
|
||
|
|
KEYWORD_anytype <- 'anytype' end_of_word
|
||
|
|
KEYWORD_asm <- 'asm' end_of_word
|
||
|
|
KEYWORD_async <- 'async' end_of_word
|
||
|
|
KEYWORD_await <- 'await' end_of_word
|
||
|
|
KEYWORD_break <- 'break' end_of_word
|
||
|
|
KEYWORD_callconv <- 'callconv' end_of_word
|
||
|
|
KEYWORD_catch <- 'catch' end_of_word
|
||
|
|
KEYWORD_comptime <- 'comptime' end_of_word
|
||
|
|
KEYWORD_const <- 'const' end_of_word
|
||
|
|
KEYWORD_continue <- 'continue' end_of_word
|
||
|
|
KEYWORD_defer <- 'defer' end_of_word
|
||
|
|
KEYWORD_else <- 'else' end_of_word
|
||
|
|
KEYWORD_enum <- 'enum' end_of_word
|
||
|
|
KEYWORD_errdefer <- 'errdefer' end_of_word
|
||
|
|
KEYWORD_error <- 'error' end_of_word
|
||
|
|
KEYWORD_export <- 'export' end_of_word
|
||
|
|
KEYWORD_extern <- 'extern' end_of_word
|
||
|
|
KEYWORD_fn <- 'fn' end_of_word
|
||
|
|
KEYWORD_for <- 'for' end_of_word
|
||
|
|
KEYWORD_if <- 'if' end_of_word
|
||
|
|
KEYWORD_inline <- 'inline' end_of_word
|
||
|
|
KEYWORD_noalias <- 'noalias' end_of_word
|
||
|
|
KEYWORD_nosuspend <- 'nosuspend' end_of_word
|
||
|
|
KEYWORD_noinline <- 'noinline' end_of_word
|
||
|
|
KEYWORD_opaque <- 'opaque' end_of_word
|
||
|
|
KEYWORD_or <- 'or' end_of_word
|
||
|
|
KEYWORD_orelse <- 'orelse' end_of_word
|
||
|
|
KEYWORD_packed <- 'packed' end_of_word
|
||
|
|
KEYWORD_pub <- 'pub' end_of_word
|
||
|
|
KEYWORD_resume <- 'resume' end_of_word
|
||
|
|
KEYWORD_return <- 'return' end_of_word
|
||
|
|
KEYWORD_linksection <- 'linksection' end_of_word
|
||
|
|
KEYWORD_struct <- 'struct' end_of_word
|
||
|
|
KEYWORD_suspend <- 'suspend' end_of_word
|
||
|
|
KEYWORD_switch <- 'switch' end_of_word
|
||
|
|
KEYWORD_test <- 'test' end_of_word
|
||
|
|
KEYWORD_threadlocal <- 'threadlocal' end_of_word
|
||
|
|
KEYWORD_try <- 'try' end_of_word
|
||
|
|
KEYWORD_union <- 'union' end_of_word
|
||
|
|
KEYWORD_unreachable <- 'unreachable' end_of_word
|
||
|
|
KEYWORD_usingnamespace <- 'usingnamespace' end_of_word
|
||
|
|
KEYWORD_var <- 'var' end_of_word
|
||
|
|
KEYWORD_volatile <- 'volatile' end_of_word
|
||
|
|
KEYWORD_while <- 'while' end_of_word
|
||
|
|
|
||
|
|
keyword <- KEYWORD_align / KEYWORD_allowzero / KEYWORD_and / KEYWORD_anyframe
|
||
|
|
/ KEYWORD_anytype / KEYWORD_asm / KEYWORD_async / KEYWORD_await
|
||
|
|
/ KEYWORD_break / KEYWORD_callconv / KEYWORD_catch / KEYWORD_comptime
|
||
|
|
/ KEYWORD_const / KEYWORD_continue / KEYWORD_defer / KEYWORD_else
|
||
|
|
/ KEYWORD_enum / KEYWORD_errdefer / KEYWORD_error / KEYWORD_export
|
||
|
|
/ KEYWORD_extern / KEYWORD_fn / KEYWORD_for / KEYWORD_if
|
||
|
|
/ KEYWORD_inline / KEYWORD_noalias / KEYWORD_nosuspend / KEYWORD_noinline
|
||
|
|
/ KEYWORD_opaque / KEYWORD_or / KEYWORD_orelse / KEYWORD_packed
|
||
|
|
/ KEYWORD_pub / KEYWORD_resume / KEYWORD_return / KEYWORD_linksection
|
||
|
|
/ KEYWORD_struct / KEYWORD_suspend / KEYWORD_switch / KEYWORD_test
|
||
|
|
/ KEYWORD_threadlocal / KEYWORD_try / KEYWORD_union / KEYWORD_unreachable
|
||
|
|
/ KEYWORD_usingnamespace / KEYWORD_var / KEYWORD_volatile / KEYWORD_while
|