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grammar.y
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grammar.y
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%start Program
%nonassoc IF_WITHOUT_ELSE
%nonassoc ELSE
%%
Pattern
: OPENBRACE CLOSEBRACE
{ $$ = yy.Node('ObjectPattern', [], yy.loc([@1,@2])); }
| OPENBRACE FieldList CLOSEBRACE
{ $$ = yy.Node('ObjectPattern', $FieldList, yy.loc([@1,@3])); }
| OPENBRACE FieldList ',' CLOSEBRACE
{ $$ = yy.Node('ObjectPattern', $FieldList, yy.loc([@1,@4])); }
| '[' ']'
{ $$ = yy.Node('ArrayPattern', [], yy.loc([@1,@2])); }
/*| '[' '...' Element ']'*/
| '[' Elision ']'
{ $$ = yy.Node('ArrayPattern', [,], yy.loc([@1,@3])); }
/*| '[' Elision '...' Element ']'*/
| '[' ArrayPatternList ']'
{ $$ = yy.Node('ArrayPattern', $2, yy.loc([@1,@3])); }
/*| '[' ArrayPatternList '...' Element ']'*/
| '[' ArrayPatternList ',' ElisionOpt ']'
{ $$ = yy.Node('ArrayPattern', $2.concat($4), yy.loc([@1,@5])); }
/*| '[' ArrayPatternList ',' ElisionOpt '...' Element ']'*/
;
ArrayPatternList
: Element
{ $$ = [$1]; }
| Elision Element
{ $$ = $1; $$.push($2); }
| ArrayPatternList ',' ElisionOpt Element
{ $$ = $1.concat($3); $$.push($4); }
;
FieldList
: Field
{ $$ = [$1]; }
| FieldList ',' Field
{ $$ = $1; $$.push($3); }
;
Field
: IDENT
{ $$ = {key:yy.Node('Identifier', $1,yy.loc(@1)),value:yy.Node('Identifier', $1,yy.loc(@1)),kind: "init"}; }
| IDENT ':' Element
{ yy.locComb(@$,@3);$$ = {key:yy.Node('Identifier', $1,yy.loc(@1)),value:$3,kind: "init"}; }
| STRING ':' Element
{ yy.locComb(@$,@3);$$ = {key:yy.Node('Literal', parseString($1),yy.loc(@1)),value:$3,kind: "init"}; }
| NUMBER ':' Element
{ yy.locComb(@$,@3);$$ = {key:yy.Node('Literal', parseNum($1),yy.loc(@1)),value:$3,kind: "init"}; }
;
Element
: Pattern
| IDENT
{ $$ = yy.Node('Identifier', $1,yy.loc(@1)) }
;
/* break up keywords to workaround some LALR(1) limitations */
IdentifierName
: IDENT
| Keyword
;
Keyword
: NULLTOKEN
| TRUETOKEN
| FALSETOKEN
| BREAK
| CASE
| CATCH
| CONSTTOKEN
| CONTINUE
| DEBUGGER
| DEFAULT
| DELETETOKEN
| DO
| ELSE
| FINALLY
| FOR
| FUNCTION
| IF
| INTOKEN
| INSTANCEOF
| LET
| NEW
| RETURN
| SWITCH
| THIS
| THROW
| TRY
| TYPEOF
| VAR
| VOIDTOKEN
| WHILE
| WITH
;
Literal
: NULLTOKEN
{ $$ = yy.Node('Literal', null, yy.loc(@1), yytext); }
| TRUETOKEN
{ $$ = yy.Node('Literal', true, yy.loc(@1), yytext); }
| FALSETOKEN
{ $$ = yy.Node('Literal', false, yy.loc(@1), yytext); }
| NUMBER
{ $$ = yy.Node('Literal', parseNum($1), yy.loc(@1), yytext); }
| STRING
{ $$ = yy.Node('Literal', parseString($1), yy.loc(@1), yy.raw[yy.raw.length-1]);}
| RegularExpressionLiteralBegin REGEXP_BODY
{
var full = $1+$2;
var body = full.slice(1,full.lastIndexOf('/'));
var flags = full.slice(full.lastIndexOf('/')+1);
$$ = yy.Node('Literal', new RegExp(body, parseString(flags)), yy.loc(yy.locComb(@$,@2)), full);
}
;
RegularExpressionLiteralBegin
: '/'
{ yy.lexer.begin('regex'); /*yy.lexer.unput($1)*/; $$ = $1; }
| DIVEQUAL
{ yy.lexer.begin('regex'); /*yy.lexer.unput($1)*/; $$ = $1; }
;
Property
: IDENT /* object shorthand strawman */
{ $$ = yy.Node('Property', yy.Node('Identifier', $1,yy.loc(@1)),yy.Node('Identifier', $1,yy.loc(@1)),"init", yy.loc(@1)); }
| IDENT ':' AssignmentExpr
{ yy.locComb(@$,@3);$$ = yy.Node('Property', yy.Node('Identifier', $1,yy.loc(@1)),$3,"init", yy.loc(@$)); }
| Keyword ':' AssignmentExpr
{ yy.locComb(@$,@3);$$ = yy.Node('Property', yy.Node('Identifier', $1,yy.loc(@1)),$3,"init", yy.loc(@$)); }
| STRING ':' AssignmentExpr
{ yy.locComb(@$,@3);$$ = yy.Node('Property', yy.Node('Literal', parseString($1),yy.loc(@1), JSON.stringify($1)),$3,"init", yy.loc(@$)); }
| NUMBER ':' AssignmentExpr
{ yy.locComb(@$,@3);$$ = yy.Node('Property', yy.Node('Literal', parseNum($1),yy.loc(@1), String($1)),$3,"init", yy.loc(@$)); }
| IDENT IdentifierName '(' ')' Block
{
if ($1 !== 'get' && $1 !== 'set') throw new Error('Parse error, invalid set/get.'); // TODO: use jison ABORT when supported
@$ = yy.locComb(@1,@5);
var fun = yy.Node('FunctionExpression',null,[],$Block, false, false, yy.loc(@5));
$$ = yy.Node('Property', yy.Node('Identifier', $2,yy.loc(@2)),fun,$1, yy.loc(@$));
}
| IDENT IdentifierName '(' FormalParameterList ')' Block
{
@$ = yy.locComb(@1,@6);
if ($1 !== 'get' && $1 !== 'set') throw new Error('Parse error, invalid set/get.'); // TODO: use jison ABORT when supported
var fun = yy.Node('FunctionExpression',null,$FormalParameterList,$Block,false,false,yy.loc(@6));
$$ = yy.Node('Property', yy.Node('Identifier', $2,yy.loc(@2)),fun,$1, yy.loc(@$));
}
| IDENT KeyLiteral '(' ')' Block
{
if ($1 !== 'get' && $1 !== 'set') throw new Error('Parse error, invalid set/get.'); // TODO: use jison ABORT when supported
@$ = yy.locComb(@1,@5);
var fun = yy.Node('FunctionExpression',null,[],$Block, false, false, yy.loc(@5));
$$ = yy.Node('Property', $2,fun,$1,yy.loc(@$));
}
| IDENT KeyLiteral '(' FormalParameterList ')' Block
{
@$ = yy.locComb(@1,@6);
if ($1 !== 'get' && $1 !== 'set') throw new Error('Parse error, invalid set/get.'); // TODO: use jison ABORT when supported
var fun = yy.Node('FunctionExpression',null,$FormalParameterList,$Block,false,false,yy.loc(@6));
$$ = yy.Node('Property', $2,fun,$1,yy.loc(@$));
}
;
KeyLiteral
: NUMBER
{ $$ = yy.Node('Literal', parseNum($1), yy.loc(@1), yytext); }
| STRING
{ $$ = yy.Node('Literal', parseString($1), yy.loc(@1), yy.lexer.match); }
;
PropertyList
: Property
{ $$ = [$1]; }
| PropertyList ',' Property
{ $$ = $1; $$.push($3); }
;
PrimaryExpr
: PrimaryExprNoBrace
| OPENBRACE CLOSEBRACE
{ $$ = yy.Node('ObjectExpression',[],yy.loc([@$,@2])); }
| OPENBRACE PropertyList CLOSEBRACE
{ $$ = yy.Node('ObjectExpression',$2,yy.loc([@$,@3])); }
| OPENBRACE PropertyList ',' CLOSEBRACE
{ $$ = yy.Node('ObjectExpression',$2,yy.loc([@$,@4])); }
;
PrimaryExprNoBrace
: THISTOKEN
{ $$ = yy.Node('ThisExpression', yy.loc(@1)); }
| Literal
| ArrayLiteral
| IDENT
{ $$ = yy.Node('Identifier', String($1), yy.loc(@1)); }
| '(' Expr ')'
{ $$ = $Expr; if($$.loc){$$.loc = yy.loc([@$,@3]); $$.range = $$.loc.range; delete $$.loc.range;} }
;
ArrayLiteral
: '[' ']'
{ $$ = yy.Node('ArrayExpression',[],yy.loc([@$,@2])); }
| '[' Elision ']'
{ $$ = yy.Node('ArrayExpression',$2,yy.loc([@$,@3])); }
| '[' ElementList ']'
{ $$ = yy.Node('ArrayExpression',$2,yy.loc([@$,@3])); }
| '[' ElementList ',' ElisionOpt ']'
{ $$ = yy.Node('ArrayExpression',$2.concat($4),yy.loc([@$,@5]));}
;
ElementList
: AssignmentExpr
{ $$ = [$1]; }
| Elision AssignmentExpr
{ $$ = $1; $$.push($2); }
| ElementList ',' ElisionOpt AssignmentExpr
{ $$ = $1.concat($3); $$.push($4); }
;
ElisionOpt
:
{ $$ = []; }
| Elision
;
Elision
: ','
{ $$ = [,]; }
| Elision ','
{ $$ = $1; $$.length = $$.length+1; }
;
MemberExpr
: PrimaryExpr
| FunctionExpr
| MemberExpr '[' Expr ']'
{ $$ = yy.Node('MemberExpression',$1,$3,true,yy.loc([@$,@4])); }
| MemberExpr '.' IdentifierName
{ $$ = yy.Node('MemberExpression',$1,yy.Node('Identifier', String($3), yy.loc(@3)),false,yy.loc([@$,@3])); }
| NEW MemberExpr Arguments
{ $$ = yy.Node('NewExpression',$MemberExpr,$Arguments,yy.loc([@$,@3])); }
;
MemberExprNoBF
: PrimaryExprNoBrace
| MemberExprNoBF '[' Expr ']'
{ $$ = yy.Node('MemberExpression',$1,$3,true,yy.loc([@$,@4])); }
| MemberExprNoBF '.' IdentifierName
{ $$ = yy.Node('MemberExpression',$1,yy.Node('Identifier', String($3), yy.loc(@3)),false,yy.loc([@$,@3])); }
| NEW MemberExpr Arguments
{ $$ = yy.Node('NewExpression',$MemberExpr,$Arguments,yy.loc([@$,@3])); }
;
NewExpr
: MemberExpr
| NEW NewExpr
{ $$ = yy.Node('NewExpression',$2,[],yy.loc([@$,@2])); }
;
NewExprNoBF
: MemberExprNoBF
| NEW NewExpr
{ $$ = yy.Node('NewExpression',$2,[],yy.loc([@$,@2])); }
;
CallExpr
: MemberExpr Arguments
{ $$ = yy.Node('CallExpression',$1,$2,yy.loc([@$,@2])); }
| CallExpr Arguments
{ $$ = yy.Node('CallExpression',$1,$2,yy.loc([@$,@2])); }
| CallExpr '[' Expr ']'
{ $$ = yy.Node('MemberExpression',$1,$3,true,yy.loc([@$,@4])); }
| CallExpr '.' IdentifierName
{ $$ = yy.Node('MemberExpression',$1,yy.Node('Identifier', String($3), yy.loc(@3)),false,yy.loc([@$,@3])); }
;
CallExprNoBF
: MemberExprNoBF Arguments
{ $$ = yy.Node('CallExpression',$1,$2,yy.loc([@$,@2])); }
| CallExprNoBF Arguments
{ $$ = yy.Node('CallExpression',$1,$2,yy.loc([@$,@2])); }
| CallExprNoBF '[' Expr ']'
{ $$ = yy.Node('MemberExpression',$1,$3,true,yy.loc([@$,@4])); }
| CallExprNoBF '.' IdentifierName
{ $$ = yy.Node('MemberExpression',$1,yy.Node('Identifier', String($3), yy.loc(@3)),false,yy.loc([@$,@3])); }
;
Arguments
: '(' ')'
{ $$ = []; }
| '(' ArgumentList ')'
{ $$ = $ArgumentList; }
;
ArgumentList
: AssignmentExpr
{ $$ = [$1]; }
| ArgumentList ',' AssignmentExpr
{ $$ = $1; $$.push($3); }
;
LeftHandSideExpr
: NewExpr
| CallExpr
;
LeftHandSideExprNoBF
: NewExprNoBF
| CallExprNoBF
;
PostfixExpr
: LeftHandSideExpr
| LeftHandSideExpr PLUSPLUS
{ $$ = yy.Node('UpdateExpression','++',$1,false,yy.loc([@$,@2])); }
| LeftHandSideExpr MINUSMINUS
{ $$ = yy.Node('UpdateExpression','--',$1,false,yy.loc([@$,@2])); }
;
PostfixExprNoBF
: LeftHandSideExprNoBF
| LeftHandSideExprNoBF PLUSPLUS
{ $$ = yy.Node('UpdateExpression','++',$1,false,yy.loc([@$,@2])); }
| LeftHandSideExprNoBF MINUSMINUS
{ $$ = yy.Node('UpdateExpression','--',$1,false,yy.loc([@$,@2])); }
;
UnaryExprCommon
: DELETETOKEN UnaryExpr
{ $$ = yy.Node('UnaryExpression','delete',$2,true,yy.loc([@$,@2])); }
| VOIDTOKEN UnaryExpr
{ $$ = yy.Node('UnaryExpression','void',$2,true,yy.loc([@$,@2])); }
| TYPEOF UnaryExpr
{ $$ = yy.Node('UnaryExpression','typeof',$2,true,yy.loc([@$,@2])); }
| PLUSPLUS UnaryExpr
{ $$ = yy.Node('UpdateExpression','++',$2,true,yy.loc([@$,@2])); }
| MINUSMINUS UnaryExpr
{ $$ = yy.Node('UpdateExpression','--',$2,true,yy.loc([@$,@2])); }
| '+' UnaryExpr
{ $$ = yy.Node('UnaryExpression','+',$2,true,yy.loc([@$,@2])); }
| '-' UnaryExpr
{ $$ = yy.Node('UnaryExpression','-',$2,true,yy.loc([@$,@2])); }
| '~' UnaryExpr
{ $$ = yy.Node('UnaryExpression','~',$2,true,yy.loc([@$,@2])); }
| '!' UnaryExpr
{ $$ = yy.Node('UnaryExpression','!',$2,true,yy.loc([@$,@2])); }
;
UnaryExpr
: PostfixExpr
| UnaryExprCommon
;
UnaryExprNoBF
: PostfixExprNoBF
| UnaryExprCommon
;
MultiplicativeExpr
: UnaryExpr
| MultiplicativeExpr '*' UnaryExpr
{ $$ = yy.Node('BinaryExpression', '*', $1, $3, yy.loc([@$,@3])); }
| MultiplicativeExpr '/' UnaryExpr
{ $$ = yy.Node('BinaryExpression', '/', $1, $3,yy.loc([@$,@3])); }
| MultiplicativeExpr '%' UnaryExpr
{ $$ = yy.Node('BinaryExpression', '%', $1, $3,yy.loc([@$,@3])); }
;
MultiplicativeExprNoBF
: UnaryExprNoBF
| MultiplicativeExprNoBF '*' UnaryExpr
{ $$ = yy.Node('BinaryExpression', '*', $1, $3,yy.loc([@$,@3])); }
| MultiplicativeExprNoBF '/' UnaryExpr
{ $$ = yy.Node('BinaryExpression', '/', $1, $3,yy.loc([@$,@3])); }
| MultiplicativeExprNoBF '%' UnaryExpr
{ $$ = yy.Node('BinaryExpression', '%', $1, $3,yy.loc([@$,@3])); }
;
AdditiveExpr
: MultiplicativeExpr
| AdditiveExpr '+' MultiplicativeExpr
{ $$ = yy.Node('BinaryExpression', '+', $1, $3,yy.loc([@$,@3])); }
| AdditiveExpr '-' MultiplicativeExpr
{ $$ = yy.Node('BinaryExpression', '-', $1, $3,yy.loc([@$,@3])); }
;
AdditiveExprNoBF
: MultiplicativeExprNoBF
| AdditiveExprNoBF '+' MultiplicativeExpr
{ @$ = yy.locComb(@1,@3);
$$ = yy.Node('BinaryExpression', '+', $1, $3, yy.loc(@$)); }
| AdditiveExprNoBF '-' MultiplicativeExpr
{ @$ = yy.locComb(@1,@3);
$$ = yy.Node('BinaryExpression', '-', $1, $3, yy.loc(@$)); }
;
ShiftExpr
: AdditiveExpr
| ShiftExpr LSHIFT AdditiveExpr
{ $$ = yy.Node('BinaryExpression', '<<', $1, $3,yy.loc([@$,@3])); }
| ShiftExpr RSHIFT AdditiveExpr
{ $$ = yy.Node('BinaryExpression', '>>', $1, $3,yy.loc([@$,@3])); }
| ShiftExpr URSHIFT AdditiveExpr
{ $$ = yy.Node('BinaryExpression', '>>>', $1, $3,yy.loc([@$,@3])); }
;
ShiftExprNoBF
: AdditiveExprNoBF
| ShiftExprNoBF LSHIFT AdditiveExpr
{ $$ = yy.Node('BinaryExpression', '<<', $1, $3,yy.loc([@$,@3])); }
| ShiftExprNoBF RSHIFT AdditiveExpr
{ $$ = yy.Node('BinaryExpression', '>>', $1, $3,yy.loc([@$,@3])); }
| ShiftExprNoBF URSHIFT AdditiveExpr
{ $$ = yy.Node('BinaryExpression', '>>>', $1, $3,yy.loc([@$,@3])); }
;
RelationalExpr
: ShiftExpr
| RelationalExpr '<' ShiftExpr
{ $$ = yy.Node('BinaryExpression', '<', $1, $3,yy.loc([@$,@3])); }
| RelationalExpr '>' ShiftExpr
{ $$ = yy.Node('BinaryExpression', '>', $1, $3,yy.loc([@$,@3])); }
| RelationalExpr LE ShiftExpr
{ $$ = yy.Node('BinaryExpression', '<=', $1, $3,yy.loc([@$,@3])); }
| RelationalExpr GE ShiftExpr
{ $$ = yy.Node('BinaryExpression', '>=', $1, $3,yy.loc([@$,@3])); }
| RelationalExpr INSTANCEOF ShiftExpr
{ $$ = yy.Node('BinaryExpression', 'instanceof', $1, $3,yy.loc([@$,@3])); }
| RelationalExpr INTOKEN ShiftExpr
{ $$ = yy.Node('BinaryExpression', 'in', $1, $3,yy.loc([@$,@3])); }
;
RelationalExprNoIn
: ShiftExpr
| RelationalExprNoIn '<' ShiftExpr
{ $$ = yy.Node('BinaryExpression', '<', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoIn '>' ShiftExpr
{ $$ = yy.Node('BinaryExpression', '>', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoIn LE ShiftExpr
{ $$ = yy.Node('BinaryExpression', '<=', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoIn GE ShiftExpr
{ $$ = yy.Node('BinaryExpression', '>=', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoIn INSTANCEOF ShiftExpr
{ $$ = yy.Node('BinaryExpression', 'instanceof', $1, $3,yy.loc([@$,@3])); }
;
RelationalExprNoBF
: ShiftExprNoBF
| RelationalExprNoBF '<' ShiftExpr
{ $$ = yy.Node('BinaryExpression', '<', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoBF '>' ShiftExpr
{ $$ = yy.Node('BinaryExpression', '>', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoBF LE ShiftExpr
{ $$ = yy.Node('BinaryExpression', '<=', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoBF GE ShiftExpr
{ $$ = yy.Node('BinaryExpression', '>=', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoBF INSTANCEOF ShiftExpr
{ $$ = yy.Node('BinaryExpression', 'instanceof', $1, $3,yy.loc([@$,@3])); }
| RelationalExprNoBF INTOKEN ShiftExpr
{ $$ = yy.Node('BinaryExpression', 'in', $1, $3,yy.loc([@$,@3])); }
;
EqualityExpr
: RelationalExpr
| EqualityExpr EQEQ RelationalExpr
{ $$ = yy.Node('BinaryExpression', '==', $1, $3,yy.loc([@$,@3])); }
| EqualityExpr NE RelationalExpr
{ $$ = yy.Node('BinaryExpression', '!=', $1, $3,yy.loc([@$,@3])); }
| EqualityExpr STREQ RelationalExpr
{ $$ = yy.Node('BinaryExpression', '===', $1, $3,yy.loc([@$,@3])); }
| EqualityExpr STRNEQ RelationalExpr
{ $$ = yy.Node('BinaryExpression', '!==', $1, $3,yy.loc([@$,@3])); }
;
EqualityExprNoIn
: RelationalExprNoIn
| EqualityExprNoIn EQEQ RelationalExprNoIn
{ $$ = yy.Node('BinaryExpression', '==', $1, $3,yy.loc([@$,@3])); }
| EqualityExprNoIn NE RelationalExprNoIn
{ $$ = yy.Node('BinaryExpression', '!=', $1, $3,yy.loc([@$,@3])); }
| EqualityExprNoIn STREQ RelationalExprNoIn
{ $$ = yy.Node('BinaryExpression', '===', $1, $3,yy.loc([@$,@3])); }
| EqualityExprNoIn STRNEQ RelationalExprNoIn
{ $$ = yy.Node('BinaryExpression', '!==', $1, $3,yy.loc([@$,@3])); }
;
EqualityExprNoBF
: RelationalExprNoBF
| EqualityExprNoBF EQEQ RelationalExpr
{ $$ = yy.Node('BinaryExpression', '==', $1, $3,yy.loc([@$,@3])); }
| EqualityExprNoBF NE RelationalExpr
{ $$ = yy.Node('BinaryExpression', '!=', $1, $3,yy.loc([@$,@3])); }
| EqualityExprNoBF STREQ RelationalExpr
{ $$ = yy.Node('BinaryExpression', '===', $1, $3,yy.loc([@$,@3])); }
| EqualityExprNoBF STRNEQ RelationalExpr
{ $$ = yy.Node('BinaryExpression', '!==', $1, $3,yy.loc([@$,@3])); }
;
BitwiseANDExpr
: EqualityExpr
| BitwiseANDExpr '&' EqualityExpr
{ $$ = yy.Node('BinaryExpression', '&', $1, $3,yy.loc([@$,@3])); }
;
BitwiseANDExprNoIn
: EqualityExprNoIn
| BitwiseANDExprNoIn '&' EqualityExprNoIn
{ $$ = yy.Node('BinaryExpression', '&', $1, $3,yy.loc([@$,@3])); }
;
BitwiseANDExprNoBF
: EqualityExprNoBF
| BitwiseANDExprNoBF '&' EqualityExpr
{ $$ = yy.Node('BinaryExpression', '&', $1, $3,yy.loc([@$,@3])); }
;
BitwiseXORExpr
: BitwiseANDExpr
| BitwiseXORExpr '^' BitwiseANDExpr
{ $$ = yy.Node('BinaryExpression', '^', $1, $3,yy.loc([@$,@3])); }
;
BitwiseXORExprNoIn
: BitwiseANDExprNoIn
| BitwiseXORExprNoIn '^' BitwiseANDExprNoIn
{ $$ = yy.Node('BinaryExpression', '^', $1, $3,yy.loc([@$,@3])); }
;
BitwiseXORExprNoBF
: BitwiseANDExprNoBF
| BitwiseXORExprNoBF '^' BitwiseANDExpr
{ $$ = yy.Node('BinaryExpression', '^', $1, $3,yy.loc([@$,@3])); }
;
BitwiseORExpr
: BitwiseXORExpr
| BitwiseORExpr '|' BitwiseXORExpr
{ $$ = yy.Node('BinaryExpression', '|', $1, $3,yy.loc([@$,@3])); }
;
BitwiseORExprNoIn
: BitwiseXORExprNoIn
| BitwiseORExprNoIn '|' BitwiseXORExprNoIn
{ $$ = yy.Node('BinaryExpression', '|', $1, $3,yy.loc([@$,@3])); }
;
BitwiseORExprNoBF
: BitwiseXORExprNoBF
| BitwiseORExprNoBF '|' BitwiseXORExpr
{ $$ = yy.Node('BinaryExpression', '|', $1, $3,yy.loc([@$,@3])); }
;
LogicalANDExpr
: BitwiseORExpr
| LogicalANDExpr AND BitwiseORExpr
{ $$ = yy.Node('LogicalExpression', '&&', $1, $3,yy.loc([@$,@3])); }
;
LogicalANDExprNoIn
: BitwiseORExprNoIn
| LogicalANDExprNoIn AND BitwiseORExprNoIn
{ $$ = yy.Node('LogicalExpression', '&&', $1, $3,yy.loc([@$,@3])); }
;
LogicalANDExprNoBF
: BitwiseORExprNoBF
| LogicalANDExprNoBF AND BitwiseORExpr
{ $$ = yy.Node('LogicalExpression', '&&', $1, $3,yy.loc([@$,@3])); }
;
LogicalORExpr
: LogicalANDExpr
| LogicalORExpr OR LogicalANDExpr
{ $$ = yy.Node('LogicalExpression', '||', $1, $3,yy.loc([@$,@3])); }
;
LogicalORExprNoIn
: LogicalANDExprNoIn
| LogicalORExprNoIn OR LogicalANDExprNoIn
{ $$ = yy.Node('LogicalExpression', '||', $1, $3,yy.loc([@$,@3])); }
;
LogicalORExprNoBF
: LogicalANDExprNoBF
| LogicalORExprNoBF OR LogicalANDExpr
{ $$ = yy.Node('LogicalExpression', '||', $1, $3,yy.loc([@$,@3])); }
;
ConditionalExpr
: LogicalORExpr
| LogicalORExpr '?' AssignmentExpr ':' AssignmentExpr
{ $$ = yy.Node('ConditionalExpression', $1, $3, $5,yy.loc([@$,@5])); }
;
ConditionalExprNoIn
: LogicalORExprNoIn
| LogicalORExprNoIn '?' AssignmentExprNoIn ':' AssignmentExprNoIn
{ $$ = yy.Node('ConditionalExpression', $1, $3, $5,yy.loc([@$,@5])); }
;
ConditionalExprNoBF
: LogicalORExprNoBF
| LogicalORExprNoBF '?' AssignmentExpr ':' AssignmentExpr
{ $$ = yy.Node('ConditionalExpression', $1, $3, $5,yy.loc([@$,@5])); }
;
AssignmentExpr
: ConditionalExpr
| LeftHandSideExpr AssignmentOperator AssignmentExpr
{ $$ = yy.Node('AssignmentExpression', $2, $1, $3,yy.loc([@$,@3])); }
;
AssignmentExprNoIn
: ConditionalExprNoIn
| LeftHandSideExpr AssignmentOperator AssignmentExprNoIn
{ $$ = yy.Node('AssignmentExpression', $2, $1, $3,yy.loc([@$,@3])); }
;
AssignmentExprNoBF
: ConditionalExprNoBF
| LeftHandSideExprNoBF AssignmentOperator AssignmentExpr
{ $$ = yy.Node('AssignmentExpression', $2, $1, $3,yy.loc([@$,@3])); }
;
AssignmentOperator
: '='
| PLUSEQUAL
| MINUSEQUAL
| MULTEQUAL
| DIVEQUAL
| LSHIFTEQUAL
| RSHIFTEQUAL
| URSHIFTEQUAL
| ANDEQUAL
| XOREQUAL
| OREQUAL
| MODEQUAL
;
Expr
: AssignmentExpr
| Expr ',' AssignmentExpr
{
if ($1.type == 'SequenceExpression') {
$1.expressions.push($3);
$1.loc = yy.loc([@$,@3]);
$$ = $1;
} else
$$ = yy.Node('SequenceExpression',[$1, $3],yy.loc([@$,@3]));
}
;
ExprNoIn
: AssignmentExprNoIn
| ExprNoIn ',' AssignmentExprNoIn
{
if ($1.type == 'SequenceExpression') {
$1.expressions.push($3);
$1.loc = yy.loc([@$,@3]);
$$ = $1;
} else
$$ = yy.Node('SequenceExpression',[$1, $3],yy.loc([@$,@3]));
}
;
ExprNoBF
: AssignmentExprNoBF
| ExprNoBF ',' AssignmentExpr
{
if ($1.type == 'SequenceExpression') {
$1.expressions.push($3);
$1.loc = yy.loc([@$,@3]);
$$ = $1;
} else
$$ = yy.Node('SequenceExpression',[$1, $3],yy.loc([@$,@3]));
}
;
Statement
: Block
| VariableStatement
| FunctionDeclaration
| EmptyStatement
| ExprStatement
| IfStatement
| IterationStatement
| ContinueStatement
| BreakStatement
| ReturnStatement
| WithStatement
| SwitchStatement
| LabeledStatement
| ThrowStatement
| TryStatement
| DebuggerStatement
;
Block
: OPENBRACE CLOSEBRACE
{ $$ = yy.Node('BlockStatement',[],yy.loc([@$,@2])); }
| OPENBRACE SourceElements CLOSEBRACE
{ $$ = yy.Node('BlockStatement',$2,yy.loc([@$,@3])); }
;
ConstStatement
: CONSTTOKEN ConstDecralarionList ';'
{ $$ = yy.Node('VariableDeclaration', "const", $2, yy.loc([@$,@3])) }
| CONSTTOKEN ConstDecralarionList error
{
if ($3.length) {
@$.last_column = @3.first_column;
@$.range[1] = @3.range[0];
} else {
yy.locComb(@$, @2);
}
$$ = yy.Node('VariableDeclaration', "const", $2, yy.loc(@$));
}
;
ConstDecralarionList
: IDENT
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), null, yy.loc(@1))]; }
| IDENT Initializer
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), $2, yy.loc([@$, @2]))]; }
| Pattern Initializer
{ $$ = [yy.Node('VariableDeclarator', $1, $2, yy.loc([@$, @2]))]; }
| ConstDecralarionList ',' IDENT
{ yy.locComb(@$,@3);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), null, yy.loc(@3))); }
| ConstDecralarionList ',' IDENT Initializer
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), $4, yy.loc([@3, @4]))); }
| ConstDecralarionList ',' Pattern Initializer
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', $3, $4, yy.loc([@3, @4]))); }
;
ConstDecralarionListNoIn
: IDENT
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), null, yy.loc(@$))]; }
| IDENT InitializerNoIn
{ yy.locComb(@$,@2);
$$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), $2, yy.loc([@$, @2]))]; }
| Pattern InitializerNoIn
{ yy.locComb(@$,@2);$$ = [yy.Node('VariableDeclarator', $1, $2, yy.loc([@$, @2]))]; }
| ConstDecralarionListNoIn ',' IDENT
{ yy.locComb(@$,@3);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), null, yy.loc(@3))); }
| ConstDecralarionListNoIn ',' IDENT InitializerNoIn
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), $4, yy.loc([@3, @4]))); }
| ConstDecralarionListNoIn ',' Pattern InitializerNoIn
{ yy.locComb(@$,@4);$$ = $1; $1.push(yy.Node('VariableDeclarator', $3, $4, yy.loc([@3, @4]))); }
;
VariableStatement
: VAR VariableDeclarationList ';'
{ $$ = yy.Node('VariableDeclaration', "var", $2, yy.loc([@$, @3])) }
| VAR VariableDeclarationList error
{ errorLoc($3, @$, @2, @3);
$$ = yy.Node('VariableDeclaration', "var", $2, yy.loc(@$)) }
;
VariableDeclarationList
: IDENT
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), null, yy.loc(@1))]; }
| IDENT Initializer
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), $2, yy.loc([@$, @2]))]; }
| Pattern Initializer
{ $$ = [yy.Node('VariableDeclarator', $1, $2, yy.loc([@$, @2]))]; }
| VariableDeclarationList ',' IDENT
{ yy.locComb(@$,@3);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), null, yy.loc(@3))); }
| VariableDeclarationList ',' IDENT Initializer
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), $4, yy.loc([@3, @4]))); }
| VariableDeclarationList ',' Pattern Initializer
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', $3, $4, yy.loc([@3, @4]))); }
;
VariableDeclarationListNoIn
: IDENT
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), null, yy.loc(@$))]; }
| IDENT InitializerNoIn
{ yy.locComb(@$,@2);
$$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), $2, yy.loc([@$, @2]))]; }
| Pattern InitializerNoIn
{ yy.locComb(@$,@2);$$ = [yy.Node('VariableDeclarator', $1, $2, yy.loc(@$))]; }
| VariableDeclarationListNoIn ',' IDENT
{ yy.locComb(@$,@3);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), null, yy.loc(@3))); }
| VariableDeclarationListNoIn ',' IDENT InitializerNoIn
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), $4, yy.loc([@3, @4]))); }
| VariableDeclarationListNoIn ',' Pattern InitializerNoIn
{ yy.locComb(@$,@4);$$ = $1; $1.push(yy.Node('VariableDeclarator', $3, $4, yy.loc([@3, @4]))); }
;
LetStatement
: LET LetDeclarationList ';'
{ $$ = yy.Node('VariableDeclaration', "let", $2, yy.loc([@$,@3])) }
| LET LetDeclarationList error
{
if ($3.length) {
@$.last_column = @3.first_column;
@$.range[1] = @3.range[0];
} else {
yy.locComb(@$, @2);
}
$$ = yy.Node('VariableDeclaration', "let", $2, yy.loc(@$));
}
;
LetDeclarationList
: IDENT
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), null, yy.loc(@1))]; }
| IDENT Initializer
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1,yy.loc(@1)), $2, yy.loc([@$, @2]))]; }
| Pattern Initializer
{ $$ = [yy.Node('VariableDeclarator', $1, $2, yy.loc([@$, @2]))]; }
| LetDeclarationList ',' IDENT
{ yy.locComb(@$,@3);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), null, yy.loc(@3))); }
| LetDeclarationList ',' IDENT Initializer
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3,yy.loc(@3)), $4, yy.loc([@3, @4]))); }
| LetDeclarationList ',' Pattern Initializer
{ yy.locComb(@$,@4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', $3, $4, yy.loc([@3, @4]))); }
;
LetDeclarationListNoIn
: IDENT
{ $$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1, yy.loc(@1)), null, yy.loc(@$))]; }
| IDENT InitializerNoIn
{ yy.locComb(@$,@2);
$$ = [yy.Node('VariableDeclarator', yy.Node('Identifier', $1, yy.loc(@1)), $2, yy.loc([@$, @2]))]; }
| Pattern InitializerNoIn
{ yy.locComb(@$,@2);$$ = [yy.Node('VariableDeclarator', $1, $2, yy.loc([@$, @2]))]; }
| LetDeclarationListNoIn ',' IDENT
{ yy.locComb(@$, @3);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3, yy.loc(@3)), null, yy.loc(@3))); }
| LetDeclarationListNoIn ',' IDENT InitializerNoIn
{ yy.locComb(@$, @4);
$$ = $1; $1.push(yy.Node('VariableDeclarator', yy.Node('Identifier', $3, yy.loc(@3)), $4, yy.loc([@3, @4]))); }
| LetDeclarationListNoIn ',' Pattern InitializerNoIn
{ yy.locComb(@$, @4);$$ = $1; $1.push(yy.Node('VariableDeclarator', $3, $4, yy.loc([@3, @4]))); }
;
Initializer
: '=' AssignmentExpr
{ $$ = $2; yy.locComb(@$,@2) }
;
InitializerNoIn
: '=' AssignmentExprNoIn
{ $$ = $2; yy.locComb(@$,@2) }
;
EmptyStatement
: ';'
{ $$ = yy.Node('EmptyStatement',yy.loc(@1)); }
;
ExprStatement
: ExprNoBF ';'
{ $$ = yy.Node('ExpressionStatement', $1,yy.loc([@$,@2])); }
| ExprNoBF error
{
if (@1.last_line === @2.last_line) {
if ($2.length) {
@$.last_column = @2.first_column;
@$.range[1] = @2.range[0];
}else{
@$.last_column = @2.last_column;
@$.range[1] = @2.range[1];
}
} else {
@$.last_column = @2.last_column;
@$.last_line = @2.last_line;
@$.range[1] = @2.range[1];
/*console.log('!err', $1, @1);*/
/*console.log('!err', $2, @2);*/
}
$$ = yy.Node('ExpressionStatement', $1, yy.loc(@$));
}
;
IfStatement
: IF '(' Expr ')' Statement %prec IF_WITHOUT_ELSE
{ $$ = yy.Node('IfStatement', $Expr, $Statement, null, yy.loc([@$,@5])); }
| IF '(' Expr ')' Statement ELSE Statement
{ $$ = yy.Node('IfStatement', $Expr, $Statement1, $Statement2, yy.loc([@$,@7])); }
;
/* forces a reduction so the parser can be modified to allow ASI */
While
: WHILE
{ $$ = $1; yy.doWhile = true; }
;
IterationStatement
: DO Statement While '(' Expr ')' ';'
{ $$ = yy.Node('DoWhileStatement', $Statement, $Expr,yy.loc([@$,@7])); yy.doWhile = false; }
| DO Statement While '(' Expr ')' error
{ $$ = yy.Node('DoWhileStatement', $Statement, $Expr,yy.loc([@$, @6])); yy.doWhile = false;}
| WHILE '(' Expr ')' Statement
{ $$ = yy.Node('WhileStatement', $Expr, $Statement,yy.loc([@$,@5])); }
| FOR '(' ExprNoInOpt ';' ExprOpt ';' ExprOpt ')' Statement
{ $$ = yy.Node('ForStatement', $ExprNoInOpt, $ExprOpt1, $ExprOpt2, $Statement,yy.loc([@$,@9])); }
| FOR '(' VAR VariableDeclarationListNoIn ';' ExprOpt ';' ExprOpt ')' Statement
{ $$ = yy.Node('ForStatement',
yy.Node('VariableDeclaration',"var", $4, yy.loc([@3,@4])),
$ExprOpt1, $ExprOpt2, $Statement, yy.loc([@$,@10])); }
| FOR '(' LET LetDeclarationListNoIn ';' ExprOpt ';' ExprOpt ')' Statement
{ $$ = yy.Node('ForStatement',
yy.Node('VariableDeclaration',"let", $4, yy.loc([@3,@4])),
$ExprOpt1, $ExprOpt2, $Statement, yy.loc([@$,@10])); }
| FOR '(' CONSTTOKEN ConstDecralarionListNoIn ';' ExprOpt ';' ExprOpt ')' Statement
{ $$ = yy.Node('ForStatement',
yy.Node('VariableDeclaration',"const", $4, yy.loc([@3,@4])),
$ExprOpt1, $ExprOpt2, $Statement, yy.loc([@$,@10])); }
| FOR '(' LeftHandSideExpr INTOKEN Expr ')' Statement
{ $$ = yy.Node('ForInStatement', $LeftHandSideExpr, $Expr, $Statement, false, yy.loc([@$,@7])); }
| FOR '(' VarOrLet Expr ')' Statement
{ $$ = yy.Node('ForInStatement', $3,
$Expr, $Statement, false, yy.loc([@$,@6])); }
| FOR '(' VarOrLetInitNoIn Expr ')' Statement
{ $$ = yy.Node('ForInStatement', $3,
$Expr, $Statement, false, yy.loc([@$,@6])); }
;
VarOrLet
: VAR IDENT INTOKEN
{ $$ = yy.Node('VariableDeclaration',"var",
[yy.Node('VariableDeclarator',yy.Node('Identifier', $2,yy.loc(@2)), null, yy.loc(@2))],
yy.loc([@1,@2])) }
| VAR Pattern INTOKEN
{ $$ = yy.Node('VariableDeclaration',"var",
[yy.Node('VariableDeclarator',$2, null, yy.loc(@2))],
yy.loc([@1,@2])) }
| LET IDENT INTOKEN
{ $$ = yy.Node('VariableDeclaration',"let",
[yy.Node('VariableDeclarator',yy.Node('Identifier', $2,yy.loc(@2)), null, yy.loc(@2))],
yy.loc([@1,@2])) }
| LET Pattern INTOKEN
{ $$ = yy.Node('VariableDeclaration',"let",
[yy.Node('VariableDeclarator',$2, null, yy.loc(@2))],
yy.loc([@1,@2])) }
;
VarOrLetInitNoIn
: VAR IDENT InitializerNoIn INTOKEN
{ $$ = yy.Node('VariableDeclaration',"var",
[yy.Node('VariableDeclarator',yy.Node('Identifier', $2,yy.loc(@2)), $3, yy.loc([@2, @3]))],
yy.loc([@1,@3])) }
| VAR Pattern InitializerNoIn INTOKEN
{ $$ = yy.Node('VariableDeclaration',"var",
[yy.Node('VariableDeclarator',$2, $3, yy.loc([@2, @3]))],
yy.loc([@1,@3])) }
| LET IDENT InitializerNoIn INTOKEN
{ $$ = yy.Node('VariableDeclaration',"let",
[yy.Node('VariableDeclarator',yy.Node('Identifier', $2,yy.loc(@2)), $3, yy.loc([@2, @3]))],
yy.loc([@1,@3])) }
| LET Pattern InitializerNoIn INTOKEN
{ $$ = yy.Node('VariableDeclaration',"let",
[yy.Node('VariableDeclarator',$2, $3, yy.loc([@2, @3]))],
yy.loc([@1,@3])) }
;
ExprOpt
:
{ $$ = null }
| Expr
;
ExprNoInOpt
:
{ $$ = null }
| ExprNoIn
;
ContinueStatement
: CONTINUE ';'
{ $$ = yy.Node('ContinueStatement', null, yy.loc([@$, @2])); }
| CONTINUE error
{ $$ = yy.Node('ContinueStatement', null, yy.loc([@$, ASIloc(@1)])); }
| CONTINUE IDENT ';'
{ $$ = yy.Node('ContinueStatement', yy.Node('Identifier', $2, yy.loc(@2)), yy.loc([@$, @3])); }
| CONTINUE IDENT error
{ errorLoc($3, @$, @2, @3);
$$ = yy.Node('ContinueStatement', yy.Node('Identifier', $2, yy.loc(@2)), yy.loc(@$)); }