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Fuse a bunch of WorldEdit development modules into 1, NeoForged port
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| grammar Expression; | ||
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| // Lexer tokens: | ||
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| PLUS : '+' ; | ||
| MINUS : '-' ; | ||
| TIMES : '*' ; | ||
| DIVIDE : '/' ; | ||
| MODULO : '%' ; | ||
| POWER : '^' | '**' ; | ||
| LEFT_SHIFT : '<<' ; | ||
| RIGHT_SHIFT : '>>' ; | ||
| ASSIGN : '=' ; | ||
| COMPLEMENT : '~' ; | ||
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| PLUS_ASSIGN : '+=' ; | ||
| MINUS_ASSIGN : '-=' ; | ||
| TIMES_ASSIGN : '*=' ; | ||
| DIVIDE_ASSIGN : '/=' ; | ||
| MODULO_ASSIGN : '%=' ; | ||
| POWER_ASSIGN : '^=' ; | ||
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| EQUAL : '==' ; | ||
| NOT_EQUAL : '!=' ; | ||
| NEAR : '~=' ; | ||
| LESS_THAN : '<' ; | ||
| LESS_THAN_OR_EQUAL : '<=' ; | ||
| GREATER_THAN : '>' ; | ||
| GREATER_THAN_OR_EQUAL : '>=' ; | ||
| // SC = "Short Circuit" | ||
| // Non-SC variants not currently implemented. | ||
| AND_SC : '&&' ; | ||
| OR_SC : '||' ; | ||
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| INCREMENT : '++' ; | ||
| DECREMENT : '--' ; | ||
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| COMMA : ',' ; | ||
| OPEN_PAREN : '(' ; | ||
| CLOSE_PAREN : ')' ; | ||
| OPEN_BRACKET : '{' ; | ||
| CLOSE_BRACKET : '}' ; | ||
| SEMI_COLON : ';' ; | ||
| QUESTION_MARK : '?' ; | ||
| COLON : ':' ; | ||
| EXCLAMATION_MARK : '!' ; | ||
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| IF : 'if' ; | ||
| ELSE : 'else' ; | ||
| WHILE : 'while' ; | ||
| DO : 'do' ; | ||
| FOR : 'for' ; | ||
| BREAK : 'break' ; | ||
| CONTINUE : 'continue' ; | ||
| RETURN : 'return' ; | ||
| SWITCH : 'switch' ; | ||
| CASE : 'case' ; | ||
| DEFAULT : 'default' ; | ||
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| fragment DIGIT : [0-9] ; | ||
| fragment SIGN : [+-] ; | ||
| fragment EXP_CHAR : [eE] ; | ||
| fragment EXPONENT : EXP_CHAR SIGN? DIGIT+ ; | ||
| fragment DECIMAL : '.' DIGIT+ ; | ||
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| // All numbers are treated the same. No int/dec divide. | ||
| NUMBER : ( DIGIT+ DECIMAL? | DECIMAL ) EXPONENT? ; | ||
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| ID : [A-Za-z] [0-9A-Za-z_]* ; | ||
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| WS : [ \t\r\n\u000C]+ -> skip ; | ||
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| // Parser rules: | ||
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| /** | ||
| * All statements parseable from the input. Forces consumption of EOF token. | ||
| */ | ||
| allStatements : statements EOF ; | ||
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| statements : statement+ ; | ||
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| statement | ||
| : ( block | ||
| | ifStatement | ||
| | whileStatement | ||
| | doStatement | ||
| | forStatement | ||
| | simpleForStatement | ||
| | breakStatement | ||
| | continueStatement | ||
| | returnStatement | ||
| | switchStatement | ||
| | expressionStatement | ||
| | emptyStatement | ||
| ) SEMI_COLON? | ||
| ; | ||
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| block : '{' statements '}' ; | ||
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| ifStatement : IF '(' condition=expression ')' trueBranch=statement ( ELSE falseBranch=statement )? ; | ||
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| whileStatement : WHILE '(' condition=expression ')' body=statement ; | ||
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| doStatement : DO body=statement WHILE '(' condition=expression ')' ; | ||
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| // C-Style for loop | ||
| forStatement | ||
| : FOR '(' init=expression ';' condition=expression ';' update=expression ')' body=statement ; | ||
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| // Range for loop | ||
| simpleForStatement | ||
| : FOR '(' counter=ID ASSIGN first=expression ',' last=expression ')' body=statement ; | ||
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| breakStatement : BREAK ; | ||
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| continueStatement : CONTINUE ; | ||
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| returnStatement : RETURN value=expression ; | ||
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| switchStatement : SWITCH '(' target=expression ')' '{' (labels+=switchLabel ':' bodies+=statements )+ '}' ; | ||
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| switchLabel | ||
| : CASE constant=constantExpression # Case | ||
| | DEFAULT # Default | ||
| ; | ||
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| expressionStatement : expression ; | ||
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| emptyStatement: SEMI_COLON ; | ||
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| expression : assignmentExpression ; | ||
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| assignmentExpression | ||
| : conditionalExpression | ||
| | assignment | ||
| ; | ||
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| assignment | ||
| : target=ID assignmentOperator source=expression | ||
| ; | ||
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| assignmentOperator | ||
| : ASSIGN | ||
| | POWER_ASSIGN | ||
| | TIMES_ASSIGN | ||
| | DIVIDE_ASSIGN | ||
| | MODULO_ASSIGN | ||
| | PLUS_ASSIGN | ||
| | MINUS_ASSIGN | ||
| ; | ||
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| conditionalExpression | ||
| : conditionalOrExpression # CEFallthrough | ||
| | condition=conditionalOrExpression QUESTION_MARK | ||
| trueBranch=expression COLON falseBranch=conditionalExpression # TernaryExpr | ||
| ; | ||
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| conditionalOrExpression | ||
| : conditionalAndExpression # COFallthrough | ||
| | left=conditionalOrExpression OR_SC right=conditionalAndExpression # ConditionalOrExpr | ||
| ; | ||
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| conditionalAndExpression | ||
| : equalityExpression # CAFallthrough | ||
| | left=conditionalAndExpression AND_SC right=equalityExpression # ConditionalAndExpr | ||
| ; | ||
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| equalityExpression | ||
| : relationalExpression # EqFallthrough | ||
| | left=equalityExpression | ||
| op= | ||
| ( EQUAL | ||
| | NOT_EQUAL | ||
| | NEAR | ||
| ) right=relationalExpression # EqualityExpr | ||
| ; | ||
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| relationalExpression | ||
| : shiftExpression # ReFallthrough | ||
| | left=relationalExpression | ||
| op= | ||
| ( LESS_THAN | ||
| | GREATER_THAN | ||
| | LESS_THAN_OR_EQUAL | ||
| | GREATER_THAN_OR_EQUAL | ||
| ) right=shiftExpression # RelationalExpr | ||
| ; | ||
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| shiftExpression | ||
| : additiveExpression # ShFallthrough | ||
| | left=shiftExpression op=( LEFT_SHIFT | RIGHT_SHIFT ) right=additiveExpression # ShiftExpr | ||
| ; | ||
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| additiveExpression | ||
| : multiplicativeExpression # AdFallthrough | ||
| | left=additiveExpression op=( PLUS | MINUS ) right=multiplicativeExpression # AddExpr | ||
| ; | ||
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| multiplicativeExpression | ||
| : powerExpression # MuFallthrough | ||
| | left=multiplicativeExpression | ||
| op= | ||
| ( TIMES | ||
| | DIVIDE | ||
| | MODULO | ||
| ) right=powerExpression # MultiplicativeExpr | ||
| ; | ||
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| powerExpression | ||
| : unaryExpression # PwFallthrough | ||
| | left=powerExpression POWER right=unaryExpression # PowerExpr | ||
| ; | ||
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| unaryExpression | ||
| : op=( INCREMENT | DECREMENT ) target=ID # PreCrementExpr | ||
| | op=( PLUS | MINUS ) expr=unaryExpression # PlusMinusExpr | ||
| | postfixExpression # UaFallthrough | ||
| | COMPLEMENT expr=unaryExpression # ComplementExpr | ||
| | EXCLAMATION_MARK expr=unaryExpression # NotExpr | ||
| ; | ||
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| postfixExpression | ||
| : unprioritizedExpression # PoFallthrough | ||
| | target=ID op=( INCREMENT | DECREMENT) # PostCrementExpr | ||
| | expr=postfixExpression op=EXCLAMATION_MARK # PostfixExpr | ||
| ; | ||
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| unprioritizedExpression | ||
| : functionCall # FunctionCallExpr | ||
| | constantExpression # ConstantExpr | ||
| | source=ID # IdExpr | ||
| | '(' expression ')' # WrappedExpr | ||
| ; | ||
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| constantExpression : NUMBER ; | ||
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| functionCall : name=ID '(' (args+=expression ( ',' args+=expression )*)? ')' ; |
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