Rename NameAndValue and add trailing-, per ECMA6.

[cycript.git] / Cycript.yy.in

diff --git a/Cycript.yy.in b/Cycript.yy.in
index 02d2f0140953ae9ca59eba7a9622ff371fb45a5d..9b9a05c09157f4d3e1004c3834bc9216a9aa6ade 100644 (file)
--- a/Cycript.yy.in
+++ b/Cycript.yy.in
@@ -161,6 +161,7 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %token Equal "="
 %token EqualEqual "=="
 %token EqualEqualEqual "==="
+%token EqualRight "=>"
 %token Exclamation "!"
 %token ExclamationEqual "!="
 %token ExclamationEqualEqual "!=="
@@ -307,6 +308,7 @@ int cylex(YYSTYPE *, cy::location *, void *);
 
 // Woah?!
 %token <identifier_> Each "each"
+%token <identifier_> Of "of"
 
 @begin E4X
 // E4X Conditional
@@ -327,6 +329,8 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <argument_> ArgumentListOpt
 %type <argument_> Arguments
 %type <literal_> ArrayLiteral
+%type <expression_> ArrowFunction
+%type <functionParameter_> ArrowParameters
 %type <expression_> AssignmentExpression
 %type <identifier_> BindingIdentifier
 %type <expression_> BitwiseANDExpression
@@ -348,12 +352,12 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <comprehension_> ComprehensionListOpt
 %type <expression_> ConditionalExpression
 %type <statement_> ContinueStatement
+%type <statement_> ConciseBody
 %type <statement_> DebuggerStatement
 %type <statement_> Declaration__
 %type <statement_> Declaration_
 %type <statement_> Declaration
 %type <clause_> DefaultClause
-%type <statement_> DoWhileStatement
 %type <expression_> Element
 %type <expression_> ElementOpt
 %type <element_> ElementList
@@ -362,14 +366,12 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <statement_> EmptyStatement
 %type <expression_> EqualityExpression
 %type <compound_> Expression_
-%type <expression_> Expression
+%type <compound_> Expression
 %type <expression_> ExpressionOpt
 %type <statement_> ExpressionStatement
 %type <finally_> FinallyOpt
 %type <comprehension_> ForComprehension
-%type <statement_> ForStatement
 %type <for_> ForStatementInitialiser
-%type <statement_> ForInStatement
 %type <forin_> ForInStatementInitialiser
 %type <declaration_> FormalParameter
 %type <functionParameter_> FormalParameterList_
@@ -380,6 +382,7 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <expression_> FunctionExpression
 %type <identifier_> Identifier
 %type <identifier_> IdentifierOpt
+%type <word_> IdentifierName
 %type <comprehension_> IfComprehension
 %type <statement_> IfStatement
 %type <expression_> Initialiser
@@ -400,7 +403,8 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <expression_> NewExpression
 %type <null_> NullLiteral
 %type <literal_> ObjectLiteral
-%type <expression_> Parenthetical
+%type <compound_> Parenthetical
+%type <compound_> ParentheticalOpt
 %type <expression_> PostfixExpression
 %type <expression_> PrimaryExpression
 %type <statement_> Program
@@ -408,9 +412,10 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <statement_> ProgramBodyOpt
 %type <propertyName_> PropertyName_
 %type <propertyName_> PropertyName
-%type <property_> PropertyNameAndValueList_
-%type <property_> PropertyNameAndValueList
-%type <property_> PropertyNameAndValueListOpt
+%type <property_> PropertyDefinition
+%type <property_> PropertyDefinitionList_
+%type <property_> PropertyDefinitionList
+%type <property_> PropertyDefinitionListOpt
 %type <expression_> RelationalExpression
 %type <statement_> ReturnStatement
 %type <rubyProc_> RubyProcExpression
@@ -435,8 +440,9 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <declarations_> VariableDeclarationList_
 %type <declarations_> VariableDeclarationList
 %type <statement_> VariableStatement
-%type <statement_> WhileStatement
 %type <statement_> WithStatement
+%type <word_> Word
+%type <word_> WordOpt
 
 @begin ObjectiveC
 %type <statement_> CategoryStatement
@@ -466,8 +472,6 @@ int cylex(YYSTYPE *, cy::location *, void *);
 %type <word_> SelectorWordOpt
 %type <expression_> TypeOpt
 %type <argument_> VariadicCall
-%type <word_> Word
-%type <word_> WordOpt
 @end
 
 @begin E4X
@@ -518,17 +522,16 @@ LexSetRegExp
     : { driver.SetCondition(CYDriver::RegExpCondition); }
     ;
 
-LexSetStatement
-    : { switch (yychar) {
-        case token::Function:
-            yychar = token::Function_;
-        break;
+LexNoBrace
+    : { if (yychar == yyempty_) driver.nobrace_ = true; else if (yychar == token::OpenBrace || yychar == token::OpenBrace_) yychar = token::OpenBrace__; }
+    ;
 
-        case token::OpenBrace:
-        case token::OpenBrace_:
-            yychar = token::OpenBrace__;
-        break;
-    } }
+LexNoFunction
+    : { if (yychar == token::Function) yychar = token::Function_; }
+    ;
+
+LexSetStatement
+    : LexNoBrace LexNoFunction
     ;
 /* }}} */
 
@@ -541,18 +544,13 @@ StrictSemi
     : { driver.Warning(yylloc, "warning, automatic semi-colon insertion required"); }
     ;
 
-Terminator_
-    : ";"
-    | "\n" StrictSemi
-    ;
-
 Terminator
-    : Terminator_
-    | error { if (yychar != 0 && yychar != token::CloseBrace && !yylval.newline_) YYABORT; else { yyerrok; driver.errors_.pop_back(); } } StrictSemi
+    : ";"
+    | error { if (yychar != yyeof_ && yychar != token::CloseBrace && !yylval.newline_) YYABORT; else { yyerrok; driver.errors_.pop_back(); } } StrictSemi
     ;
 
 TerminatorOpt
-    : Terminator_
+    : ";"
     | error { yyerrok; driver.errors_.pop_back(); } StrictSemi
     ;
 
@@ -561,12 +559,15 @@ TerminatorOpt
     |
     ;*/
 
-@begin ObjectiveC
 NewLineOpt
     : "\n"
     |
     ;
 
+IdentifierName
+    : Word { $$ = $1; }
+    ;
+
 Word
     : Identifier { $$ = $1; }
     | "break" NewLineOpt { $$ = $1; }
@@ -590,7 +591,12 @@ Word
     | "if" { $$ = $1; }
     | "import" { $$ = $1; }
     /* XXX: | "in" { $$ = $1; } */
+    | "!in" { $$ = $1; }
     /* XXX: | "instanceof" { $$ = $1; } */
+
+    // XXX: as it currently is not an Identifier
+    | "let" { $$ = $1; }
+
     | "new" { $$ = $1; }
     | "null" { $$ = $1; }
     | "return" NewLineOpt { $$ = $1; }
@@ -612,6 +618,7 @@ WordOpt
     | { $$ = NULL; }
     ;
 
+@begin ObjectiveC
 PrimaryExpression
     : "@" LiteralNoRE { $$ = CYNew CYBox($2); }
     | "@" ArrayLiteral { $$ = CYNew CYBox($2); }
@@ -648,10 +655,13 @@ Identifier
     | "transient" { $$ = $1; }
     | "volatile" { $$ = $1; }
 
-    // XXX: is this allowed?! | "let" { $$ = $1; }
+    // XXX: currently I only have this as Word
+    // | "let" { $$ = $1; }
+
     | "yield" { $$ = $1; }
 
     | "each" { $$ = $1; }
+    | "of" { $$ = $1; }
     ;
 
 IdentifierOpt
@@ -685,6 +695,11 @@ Parenthetical
     : "(" LexPushInOff Expression LexPopIn ")" { $$ = $3; }
     ;
 
+ParentheticalOpt
+    : Parenthetical { $$ = $1; }
+    | { $$ = NULL; }
+    ;
+
 PrimaryExpression
     : "this" { $$ = $1; }
     | Identifier { $$ = CYNew CYVariable($1); }
@@ -722,25 +737,32 @@ ElementListOpt
 /* }}} */
 /* 11.1.5 Object Initialiser {{{ */
 ObjectLiteral
-    : BRACE LexPushInOff PropertyNameAndValueListOpt LexPopIn "}" { $$ = CYNew CYObject($3); }
+    : BRACE LexPushInOff PropertyDefinitionListOpt LexPopIn "}" { $$ = CYNew CYObject($3); }
     ;
 
-PropertyNameAndValueList_
-    : "," PropertyNameAndValueList { $$ = $2; }
+PropertyDefinitionList_
+    : "," PropertyDefinitionList { $$ = $2; }
+    | "," { $$ = NULL; }
     | { $$ = NULL; }
     ;
 
-PropertyNameAndValueList
-    : PropertyName ":" AssignmentExpression PropertyNameAndValueList_ { $$ = CYNew CYProperty($1, $3, $4); }
+PropertyDefinitionList
+    : PropertyDefinition PropertyDefinitionList_ { $1->SetNext($2); $$ = $1; }
     ;
 
-PropertyNameAndValueListOpt
-    : PropertyNameAndValueList { $$ = $1; }
+PropertyDefinitionListOpt
+    : PropertyDefinitionList { $$ = $1; }
     | { $$ = NULL; }
     ;
 
+PropertyDefinition
+    //: IdentifierName { $$ = CYNew CYProperty($1, CYNew CYVariable($1)); }
+    : PropertyName ":" AssignmentExpression { $$ = CYNew CYProperty($1, $3); }
+    //| MethodDefinition
+    ;
+
 PropertyName_
-    : Identifier { $$ = $1; }
+    : IdentifierName { $$ = $1; }
     | StringLiteral { $$ = $1; }
     | NumericLiteral { $$ = $1; }
     ;
@@ -753,7 +775,7 @@ PropertyName
 /* 11.2 Left-Hand-Side Expressions {{{ */
 MemberAccess
     : "[" LexPushInOff Expression LexPopIn "]" { $$ = CYNew CYDirectMember(NULL, $3); }
-    | "." Identifier { $$ = CYNew CYDirectMember(NULL, CYNew CYString($2)); }
+    | "." IdentifierName { $$ = CYNew CYDirectMember(NULL, CYNew CYString($2)); }
     | "." AutoComplete { driver.mode_ = CYDriver::AutoDirect; YYACCEPT; }
     ;
 
@@ -912,6 +934,7 @@ ConditionalExpression
 /* 11.13 Assignment Operators {{{ */
 AssignmentExpression
     : ConditionalExpression { $$ = $1; }
+    | ArrowFunction { $$ = $1; }
     | LeftHandSideExpression "=" AssignmentExpression { $$ = CYNew CYAssign($1, $3); }
     | LeftHandSideExpression "*=" AssignmentExpression { $$ = CYNew CYMultiplyAssign($1, $3); }
     | LeftHandSideExpression "/=" AssignmentExpression { $$ = CYNew CYDivideAssign($1, $3); }
@@ -928,12 +951,12 @@ AssignmentExpression
 /* }}} */
 /* 11.14 Comma Operator {{{ */
 Expression_
-    : "," Expression { $$ = CYNew CYCompound($2); }
-    | { $$ = NULL; }
+    : "," Expression { $$ = $2; }
+    | { $$ = CYNew CYCompound(); }
     ;
 
 Expression
-    : AssignmentExpression Expression_ { if ($2) { $2->AddPrev($1); $$ = $2; } else $$ = $1; }
+    : AssignmentExpression Expression_ { $2->AddPrev($1); $$ = $2; }
     ;
 
 ExpressionOpt
@@ -1086,26 +1109,18 @@ IfStatement
     ;
 /* }}} */
 
-/* 12.6 Iteration Statements {{{ */
-IterationStatement
-    : DoWhileStatement { $$ = $1; }
-    | WhileStatement { $$ = $1; }
-    | ForStatement { $$ = $1; }
-    | ForInStatement { $$ = $1; }
-    ;
-/* }}} */
 /* 12.6.1 The do-while Statement {{{ */
-DoWhileStatement
+IterationStatement
     : "do" Statement "while" "(" Expression ")" TerminatorOpt { $$ = CYNew CYDoWhile($5, $2); }
     ;
 /* }}} */
 /* 12.6.2 The while Statement {{{ */
-WhileStatement
+IterationStatement
     : "while" "(" Expression ")" Statement { $$ = CYNew CYWhile($3, $5); }
     ;
 /* }}} */
 /* 12.6.3 The for Statement {{{ */
-ForStatement
+IterationStatement
     : "for" "(" LexPushInOn ForStatementInitialiser LexPopIn ";" ExpressionOpt ";" ExpressionOpt ")" Statement { $$ = CYNew CYFor($4, $7, $9, $11); }
     ;
 
@@ -1114,9 +1129,10 @@ ForStatementInitialiser
     | LexSetRegExp "var" VariableDeclarationList { $$ = CYNew CYForDeclarations($3); }
     ;
 /* }}} */
-/* 12.6.4 The for-in Statement {{{ */
-ForInStatement
+/* 12.6.4 The for-in and for-of Statements {{{ */
+IterationStatement
     : "for" "(" LexPushInOn ForInStatementInitialiser LexPopIn "!in" Expression ")" Statement { $$ = CYNew CYForIn($4, $7, $9); }
+    | "for" "(" LexPushInOn ForInStatementInitialiser LexPopIn "of" Expression ")" Statement { $$ = CYNew CYForOf($4, $7, $9); }
     ;
 
 ForInStatementInitialiser
@@ -1127,17 +1143,20 @@ ForInStatementInitialiser
 
 /* 12.7 The continue Statement {{{ */
 ContinueStatement
-    : "continue" IdentifierOpt Terminator { $$ = CYNew CYContinue($2); }
+    : "continue" "\n" StrictSemi { $$ = CYNew CYContinue(NULL); }
+    | "continue" IdentifierOpt Terminator { $$ = CYNew CYContinue($2); }
     ;
 /* }}} */
 /* 12.8 The break Statement {{{ */
 BreakStatement
-    : "break" IdentifierOpt Terminator { $$ = CYNew CYBreak($2); }
+    : "break" "\n" StrictSemi { $$ = CYNew CYBreak(NULL); }
+    | "break" IdentifierOpt Terminator { $$ = CYNew CYBreak($2); }
     ;
 /* }}} */
 /* 12.9 The return Statement {{{ */
 ReturnStatement
-    : "return" ExpressionOpt Terminator { $$ = CYNew CYReturn($2); }
+    : "return" "\n" StrictSemi { $$ = CYNew CYReturn(NULL); }
+    | "return" ExpressionOpt Terminator { $$ = CYNew CYReturn($2); }
     ;
 /* }}} */
 /* 12.10 The with Statement {{{ */
@@ -1176,7 +1195,8 @@ LabelledStatement
 /* }}} */
 /* 12.13 The throw Statement {{{ */
 ThrowStatement
-    : "throw" Expression Terminator { $$ = CYNew cy::Syntax::Throw($2); }
+    : "throw" "\n" StrictSemi { YYABORT; }
+    | "throw" Expression Terminator { $$ = CYNew cy::Syntax::Throw($2); }
     ;
 /* }}} */
 /* 12.14 The try Statement {{{ */
@@ -1200,7 +1220,7 @@ DebuggerStatement
     ;
 /* }}} */
 
-/* 13 Function Definition {{{ */
+/* 13.1 Function Definitions {{{ */
 FunctionDeclaration
     : ";function" Identifier "(" FormalParameterListOpt ")" BRACE FunctionBody "}" { $$ = CYNew CYFunctionStatement($2, $4, $7); }
     ;
@@ -1236,6 +1256,21 @@ FunctionBody
     : StatementListOpt { $$ = $1; }
     ;
 /* }}} */
+/* 13.2 Arrow Function Definitions {{{ */
+ArrowFunction
+    : LexSetRegExp ArrowParameters "=>" LexNoBrace ConciseBody { $$ = CYNew CYFunctionExpression(NULL, $2, $5); }
+    ;
+
+ArrowParameters
+    : BindingIdentifier { $$ = CYNew CYFunctionParameter(CYNew CYDeclaration($1)); }
+    //| ParentheticalOpt { $$ = $1; }
+    ;
+
+ConciseBody
+    : AssignmentExpression { $$ = CYNew CYReturn($1); }
+    | ";{" LexPushInOff FunctionBody LexPopIn "}" { $$ = $3; }
+    ;
+/* }}} */
 /* 14 Program {{{ */
 Program
     : ProgramBodyOpt { driver.program_ = CYNew CYProgram($1); }
@@ -1441,7 +1476,7 @@ UnaryExpression_
 
 MemberAccess
     : "->" "[" Expression "]" { $$ = CYNew CYIndirectMember(NULL, $3); }
-    | "->" Identifier { $$ = CYNew CYIndirectMember(NULL, CYNew CYString($2)); }
+    | "->" IdentifierName { $$ = CYNew CYIndirectMember(NULL, CYNew CYString($2)); }
     | "->" AutoComplete { driver.mode_ = CYDriver::AutoIndirect; YYACCEPT; }
     ;
 /* }}} */
@@ -1624,12 +1659,6 @@ Statement__
 /* }}} */
 @end
 
-/* ECMAScript5: Object Literal Trailing Comma {{{ */
-PropertyNameAndValueList_
-    : "," { $$ = NULL; }
-    ;
-/* }}} */
-
 /* JavaScript 1.7: Array Comprehensions {{{ */
 IfComprehension
     : "if" "(" Expression ")" { $$ = CYNew CYIfComprehension($3); }
@@ -1637,7 +1666,7 @@ IfComprehension
 
 ForComprehension
     : "for" "(" LexPushInOn Identifier LexPopIn "!in" Expression ")" { $$ = CYNew CYForInComprehension($4, $7); }
-    | "for" "each" "(" LexPushInOn Identifier LexPopIn "!in" Expression ")" { $$ = CYNew CYForEachInComprehension($5, $8); }
+    | "for" "each" "(" LexPushInOn Identifier LexPopIn "!in" Expression ")" { $$ = CYNew CYForOfComprehension($5, $8); }
     ;
 
 ComprehensionList
@@ -1655,8 +1684,8 @@ PrimaryExpression
     ;
 /* }}} */
 /* JavaScript 1.7: for each {{{ */
-ForInStatement
-    : "for" "each" "(" LexPushInOn ForInStatementInitialiser LexPopIn "!in" Expression ")" Statement { $$ = CYNew CYForEachIn($5, $8, $10); }
+IterationStatement
+    : "for" "each" "(" LexPushInOn ForInStatementInitialiser LexPopIn "!in" Expression ")" Statement { $$ = CYNew CYForOf($5, $8, $10); }
     ;
 /* }}} */
 /* JavaScript 1.7: let Statements {{{ */