X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/9b5527f0b979deba030328eb11c355b5785aceb5..1e7ce5572cfc83d260cbe73d66814f54e5760c37:/Cycript.y

diff --git a/Cycript.y b/Cycript.y
index 7b1399d..7fdc172 100644
--- a/Cycript.y
+++ b/Cycript.y
@@ -52,12 +52,15 @@ typedef struct {
     union {
         bool bool_;
 
+        CYDriver::Condition condition_;
+
         CYArgument *argument_;
         CYAssignment *assignment_;
         CYBoolean *boolean_;
         CYClause *clause_;
         CYCatch *catch_;
         CYClassName *className_;
+        CYComprehension *comprehension_;
         CYCompound *compound_;
         CYDeclaration *declaration_;
         CYDeclarations *declarations_;
@@ -65,6 +68,7 @@ typedef struct {
         CYExpression *expression_;
         CYFalse *false_;
         CYField *field_;
+        CYFinally *finally_;
         CYForInitialiser *for_;
         CYForInInitialiser *forin_;
         CYFunctionParameter *functionParameter_;
@@ -76,10 +80,10 @@ typedef struct {
         CYMessageParameter *messageParameter_;
         CYNull *null_;
         CYNumber *number_;
+        CYProgram *program_;
         CYProperty *property_;
         CYPropertyName *propertyName_;
         CYSelectorPart *selector_;
-        CYSource *source_;
         CYStatement *statement_;
         CYString *string_;
         CYThis *this_;
@@ -105,12 +109,16 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 
 %defines
 
-%debug
+//%glr-parser
+//%expect 1
+
 %error-verbose
 
 %parse-param { CYDriver &driver }
 %lex-param { void *scanner }
 
+%token At "@"
+
 %token Ampersand "&"
 %token AmpersandAmpersand "&&"
 %token AmpersandEqual "&="
@@ -172,6 +180,11 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %token AtSelector "@selector"
 %token AtEnd "@end"
 
+%token <false_> False "false"
+%token <null_> Null "null"
+%token <true_> True "true"
+
+// ES3/ES5/WIE/JSC Reserved
 %token <word_> Break "break"
 %token <word_> Case "case"
 %token <word_> Catch "catch"
@@ -180,7 +193,6 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %token <word_> Delete "delete"
 %token <word_> Do "do"
 %token <word_> Else "else"
-%token <false_> False "false"
 %token <word_> Finally "finally"
 %token <word_> For "for"
 %token <word_> Function "function"
@@ -188,12 +200,10 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %token <word_> In "in"
 %token <word_> InstanceOf "instanceof"
 %token <word_> New "new"
-%token <null_> Null "null"
 %token <word_> Return "return"
 %token <word_> Switch "switch"
 %token <this_> This "this"
 %token <word_> Throw "throw"
-%token <true_> True "true"
 %token <word_> Try "try"
 %token <word_> TypeOf "typeof"
 %token <word_> Var "var"
@@ -201,41 +211,58 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %token <word_> While "while"
 %token <word_> With "with"
 
-%token <word_> Abstract "abstract"
-%token <word_> Boolean "boolean"
-%token <word_> Byte "byte"
-%token <word_> Char "char"
-%token <word_> Class "class"
-%token <word_> Const "const"
+// ES3/IE6 Future, ES5/JSC Reserved
 %token <word_> Debugger "debugger"
-%token <word_> Double "double"
+
+// ES3/ES5/IE6 Future, JSC Reserved
+%token <word_> Const "const"
+
+// ES3/ES5/IE6/JSC Future
+%token <word_> Class "class"
 %token <word_> Enum "enum"
 %token <word_> Export "export"
 %token <word_> Extends "extends"
-%token <word_> Final "final"
-%token <word_> Float "float"
-%token <word_> Goto "goto"
-%token <word_> Implements "implements"
 %token <word_> Import "import"
-%token <word_> Int "int"
-%token <word_> Interface "interface"
-%token <word_> Long "long"
-%token <word_> Native "native"
-%token <word_> Package "package"
-%token <word_> Private "private"
-%token <word_> Protected "protected"
-%token <word_> Public "public"
-%token <word_> Short "short"
-%token <word_> Static "static"
 %token <word_> Super "super"
-%token <word_> Synchronized "synchronized"
-%token <word_> Throws "throws"
-%token <word_> Transient "transient"
-%token <word_> Volatile "volatile"
 
-%token <identifier_> Identifier
+// ES3 Future, ES5 Strict Future
+%token <identifier_> Implements "implements"
+%token <identifier_> Interface "interface"
+%token <identifier_> Package "package"
+%token <identifier_> Private "private"
+%token <identifier_> Protected "protected"
+%token <identifier_> Public "public"
+%token <identifier_> Static "static"
+
+// ES3 Future
+%token <identifier_> Abstract "abstract"
+%token <identifier_> Boolean "boolean"
+%token <identifier_> Byte "byte"
+%token <identifier_> Char "char"
+%token <identifier_> Double "double"
+%token <identifier_> Final "final"
+%token <identifier_> Float "float"
+%token <identifier_> Goto "goto"
+%token <identifier_> Int "int"
+%token <identifier_> Long "long"
+%token <identifier_> Native "native"
+%token <identifier_> Short "short"
+%token <identifier_> Synchronized "synchronized"
+%token <identifier_> Throws "throws"
+%token <identifier_> Transient "transient"
+%token <identifier_> Volatile "volatile"
+
+// ES5 Strict
+%token <identifier_> Let "let"
+%token <identifier_> Yield "yield"
+
+// Woah?!
+%token <identifier_> Each "each"
+
+%token <identifier_> Identifier_
 %token <number_> NumericLiteral
 %token <string_> StringLiteral
+%token <literal_> RegularExpressionLiteral
 
 %type <expression_> AdditiveExpression
 %type <expression_> AdditiveExpressionNoBF
@@ -255,6 +282,7 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %type <expression_> BitwiseANDExpressionNoBF
 %type <expression_> BitwiseANDExpressionNoIn
 %type <statement_> Block
+%type <statement_> Block_
 %type <boolean_> BooleanLiteral
 %type <expression_> BitwiseORExpression
 %type <expression_> BitwiseORExpressionNoBF
@@ -269,12 +297,17 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %type <clause_> CaseClause
 %type <clause_> CaseClausesOpt
 %type <catch_> CatchOpt
-%type <source_> ClassDeclaration
+%type <statement_> CategoryStatement
+%type <expression_> ClassExpression
 %type <message_> ClassMessageDeclaration
 %type <message_> ClassMessageDeclarationListOpt
 %type <className_> ClassName
+%type <className_> ClassNameOpt
+%type <statement_> ClassStatement
 %type <expression_> ClassSuperOpt
 %type <field_> ClassFieldList
+%type <comprehension_> ComprehensionList
+%type <comprehension_> ComprehensionListOpt
 %type <expression_> ConditionalExpression
 %type <expression_> ConditionalExpressionNoBF
 %type <expression_> ConditionalExpressionNoIn
@@ -298,17 +331,20 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %type <compound_> ExpressionNoIn_
 %type <expression_> ExpressionNoInOpt
 %type <statement_> ExpressionStatement
-%type <statement_> FinallyOpt
+%type <finally_> FinallyOpt
+%type <comprehension_> ForComprehension
 %type <statement_> ForStatement
 %type <for_> ForStatementInitialiser
 %type <statement_> ForInStatement
 %type <forin_> ForInStatementInitialiser
 %type <functionParameter_> FormalParameterList
 %type <functionParameter_> FormalParameterList_
-%type <source_> FunctionBody
-%type <source_> FunctionDeclaration
+%type <statement_> FunctionBody
+%type <statement_> FunctionDeclaration
 %type <expression_> FunctionExpression
+%type <identifier_> Identifier
 %type <identifier_> IdentifierOpt
+%type <comprehension_> IfComprehension
 %type <statement_> IfStatement
 %type <expression_> Initialiser
 %type <expression_> InitialiserOpt
@@ -318,6 +354,7 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %type <statement_> LabelledStatement
 %type <expression_> LeftHandSideExpression
 %type <expression_> LeftHandSideExpressionNoBF
+//%type <statement_> LetStatement
 %type <literal_> Literal
 %type <expression_> LogicalANDExpression
 %type <expression_> LogicalANDExpressionNoBF
@@ -346,11 +383,13 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %type <expression_> PrimaryExpression
 %type <expression_> PrimaryExpression_
 %type <expression_> PrimaryExpressionNoBF
-%type <source_> Program
+%type <statement_> Program
 %type <propertyName_> PropertyName
 %type <property_> PropertyNameAndValueList
 %type <property_> PropertyNameAndValueList_
 %type <property_> PropertyNameAndValueListOpt
+%type <literal_> RegularExpressionLiteral_
+%type <condition_> RegularExpressionToken
 %type <expression_> RelationalExpression
 %type <infix_> RelationalExpression_
 %type <expression_> RelationalExpressionNoBF
@@ -362,9 +401,10 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 %type <selector_> SelectorExpressionOpt
 %type <expression_> ShiftExpression
 %type <expression_> ShiftExpressionNoBF
-%type <source_> SourceElement
-%type <source_> SourceElements
+%type <statement_> SourceElement
+%type <statement_> SourceElements
 %type <statement_> Statement
+%type <statement_> Statement_
 %type <statement_> StatementList
 %type <statement_> StatementListOpt
 %type <statement_> SwitchStatement
@@ -412,22 +452,29 @@ int cylex(YYSTYPE *lvalp, cy::location *llocp, void *scanner);
 
 %%
 
-TerminatorOpt
+StrictSemi
+    : { driver.Warning(yylloc, "warning, automatic semi-colon insertion required"); }
+    ;
+
+Terminator_
     : ";"
-    | "\n"
-    | error { yyerrok; driver.errors_.pop_back(); }
+    | "\n" StrictSemi
+    ;
+
+TerminatorOpt
+    : Terminator_
+    | error { yyerrok; driver.errors_.pop_back(); } StrictSemi
     ;
 
 Terminator
-    : ";"
-    | "\n"
-    | error { if (yychar != 0 && yychar != cy::parser::token::CloseBrace && !yylval.newline_) YYABORT; else { yyerrok; driver.errors_.pop_back(); } }
+    : Terminator_
+    | error { if (yychar != 0 && yychar != cy::parser::token::CloseBrace && !yylval.newline_) YYABORT; else { yyerrok; driver.errors_.pop_back(); } } StrictSemi
     ;
 
-CommaOpt
+/*CommaOpt
     : ","
     |
-    ;
+    ;*/
 
 NewLineOpt
     : "\n"
@@ -441,13 +488,9 @@ WordOpt
 
 Word
     : Identifier { $$ = $1; }
-    | "abstract" { $$ = $1; }
-    | "boolean" { $$ = $1; }
     | "break" NewLineOpt { $$ = $1; }
-    | "byte" { $$ = $1; }
     | "case" { $$ = $1; }
     | "catch" { $$ = $1; }
-    | "char" { $$ = $1; }
     | "class" { $$ = $1; }
     | "const" { $$ = $1; }
     | "continue" NewLineOpt { $$ = $1; }
@@ -455,63 +498,88 @@ Word
     | "default" { $$ = $1; }
     | "delete" { $$ = $1; }
     | "do" { $$ = $1; }
-    | "double" { $$ = $1; }
     | "else" { $$ = $1; }
     | "enum" { $$ = $1; }
     | "export" { $$ = $1; }
     | "extends" { $$ = $1; }
     | "false" { $$ = $1; }
-    | "final" { $$ = $1; }
     | "finally" { $$ = $1; }
-    | "float" { $$ = $1; }
     | "for" { $$ = $1; }
     | "function" { $$ = $1; }
-    | "goto" { $$ = $1; }
     | "if" { $$ = $1; }
-    | "implements" { $$ = $1; }
     | "import" { $$ = $1; }
     /* XXX: | "in" { $$ = $1; } */
     /* XXX: | "instanceof" { $$ = $1; } */
-    | "int" { $$ = $1; }
-    | "interface" { $$ = $1; }
-    | "long" { $$ = $1; }
-    | "native" { $$ = $1; }
     | "new" { $$ = $1; }
     | "null" { $$ = $1; }
-    | "package" { $$ = $1; }
-    | "private" { $$ = $1; }
-    | "protected" { $$ = $1; }
-    | "public" { $$ = $1; }
     | "return" NewLineOpt { $$ = $1; }
-    | "short" { $$ = $1; }
-    | "static" { $$ = $1; }
     | "super" { $$ = $1; }
     | "switch" { $$ = $1; }
-    | "synchronized" { $$ = $1; }
     | "this" { $$ = $1; }
     | "throw" NewLineOpt { $$ = $1; }
-    | "throws" { $$ = $1; }
-    | "transient" { $$ = $1; }
     | "true" { $$ = $1; }
     | "try" { $$ = $1; }
     | "typeof" { $$ = $1; }
     | "var" { $$ = $1; }
     | "void" { $$ = $1; }
-    | "volatile" { $$ = $1; }
     | "while" { $$ = $1; }
     | "with" { $$ = $1; }
     ;
 
+Identifier
+    : Identifier_ { $$ = $1; }
+
+    | "implements" { $$ = $1; }
+    | "interface" { $$ = $1; }
+    | "package" { $$ = $1; }
+    | "private" { $$ = $1; }
+    | "protected" { $$ = $1; }
+    | "public" { $$ = $1; }
+    | "static" { $$ = $1; }
+
+    | "abstract" { $$ = $1; }
+    | "boolean" { $$ = $1; }
+    | "byte" { $$ = $1; }
+    | "char" { $$ = $1; }
+    | "double" { $$ = $1; }
+    | "final" { $$ = $1; }
+    | "float" { $$ = $1; }
+    | "goto" { $$ = $1; }
+    | "int" { $$ = $1; }
+    | "long" { $$ = $1; }
+    | "native" { $$ = $1; }
+    | "short" { $$ = $1; }
+    | "synchronized" { $$ = $1; }
+    | "throws" { $$ = $1; }
+    | "transient" { $$ = $1; }
+    | "volatile" { $$ = $1; }
+
+    | "let" { $$ = $1; }
+    | "yield" { $$ = $1; }
+
+    | "each" { $$ = $1; }
+    ;
+
 IdentifierOpt
     : Identifier { $$ = $1; }
     | { $$ = NULL; }
     ;
 
+RegularExpressionToken
+    : "/" { $$ = CYDriver::RegExStart; }
+    | "/=" { $$ = CYDriver::RegExRest; }
+    ;
+
+RegularExpressionLiteral_
+    : RegularExpressionToken { driver.SetCondition($1); } RegularExpressionLiteral { $$ = $3; }
+    ;
+
 Literal
     : NullLiteral { $$ = $1; }
     | BooleanLiteral { $$ = $1; }
     | NumericLiteral { $$ = $1; }
     | StringLiteral { $$ = $1; }
+    | RegularExpressionLiteral_ { $$ = $1; }
     ;
 
 NullLiteral
@@ -572,7 +640,7 @@ ObjectLiteral
 
 PropertyNameAndValueList_
     : "," PropertyNameAndValueList { $$ = $2; }
-    | CommaOpt { $$ = NULL; }
+    | { $$ = NULL; }
     ;
 
 PropertyNameAndValueListOpt
@@ -591,6 +659,7 @@ PropertyName
     ;
 /* }}} */
 
+/* 11.2 Left-Hand-Side Expressions {{{ */
 MemberExpression_
     : "new" MemberExpression Arguments { $$ = new(driver.pool_) CYNew($2, $3); }
     ;
@@ -666,7 +735,8 @@ LeftHandSideExpressionNoBF
     : NewExpressionNoBF { $$ = $1; }
     | CallExpressionNoBF { $$ = $1; }
     ;
-
+/* }}} */
+/* 11.3 Postfix Expressions {{{ */
 PostfixExpression
     : AssigneeExpression { $$ = $1; }
     | LeftHandSideExpression "++" { $$ = new(driver.pool_) CYPostIncrement($1); }
@@ -678,7 +748,8 @@ PostfixExpressionNoBF
     | LeftHandSideExpressionNoBF "++" { $$ = new(driver.pool_) CYPostIncrement($1); }
     | LeftHandSideExpressionNoBF "--" { $$ = new(driver.pool_) CYPostDecrement($1); }
     ;
-
+/* }}} */
+/* 11.4 Unary Operators {{{ */
 UnaryExpression_
     : "delete" UnaryExpression { $$ = new(driver.pool_) CYDelete($2); }
     | "void" UnaryExpression { $$ = new(driver.pool_) CYVoid($2); }
@@ -687,7 +758,7 @@ UnaryExpression_
     | "\n++" UnaryExpression { $$ = new(driver.pool_) CYPreIncrement($2); }
     | "--" UnaryExpression { $$ = new(driver.pool_) CYPreDecrement($2); }
     | "\n--" UnaryExpression { $$ = new(driver.pool_) CYPreDecrement($2); }
-    | "+" UnaryExpression { $$ = $2; }
+    | "+" UnaryExpression { $$ = new(driver.pool_) CYAffirm($2); }
     | "-" UnaryExpression { $$ = new(driver.pool_) CYNegate($2); }
     | "~" UnaryExpression { $$ = new(driver.pool_) CYBitwiseNot($2); }
     | "!" UnaryExpression { $$ = new(driver.pool_) CYLogicalNot($2); }
@@ -702,7 +773,8 @@ UnaryExpressionNoBF
     : PostfixExpressionNoBF { $$ = $1; }
     | UnaryExpression_ { $$ = $1; }
     ;
-
+/* }}} */
+/* 11.5 Multiplicative Operators {{{ */
 MultiplicativeExpression
     : UnaryExpression { $$ = $1; }
     | MultiplicativeExpression "*" UnaryExpression { $$ = new(driver.pool_) CYMultiply($1, $3); }
@@ -716,7 +788,8 @@ MultiplicativeExpressionNoBF
     | MultiplicativeExpressionNoBF "/" UnaryExpression { $$ = new(driver.pool_) CYDivide($1, $3); }
     | MultiplicativeExpressionNoBF "%" UnaryExpression { $$ = new(driver.pool_) CYModulus($1, $3); }
     ;
-
+/* }}} */
+/* 11.6 Additive Operators {{{ */
 AdditiveExpression
     : MultiplicativeExpression { $$ = $1; }
     | AdditiveExpression "+" MultiplicativeExpression { $$ = new(driver.pool_) CYAdd($1, $3); }
@@ -728,7 +801,8 @@ AdditiveExpressionNoBF
     | AdditiveExpressionNoBF "+" MultiplicativeExpression { $$ = new(driver.pool_) CYAdd($1, $3); }
     | AdditiveExpressionNoBF "-" MultiplicativeExpression { $$ = new(driver.pool_) CYSubtract($1, $3); }
     ;
-
+/* }}} */
+/* 11.7 Bitwise Shift Operators {{{ */
 ShiftExpression
     : AdditiveExpression { $$ = $1; }
     | ShiftExpression "<<" AdditiveExpression { $$ = new(driver.pool_) CYShiftLeft($1, $3); }
@@ -742,7 +816,8 @@ ShiftExpressionNoBF
     | ShiftExpressionNoBF ">>" AdditiveExpression { $$ = new(driver.pool_) CYShiftRightSigned($1, $3); }
     | ShiftExpressionNoBF ">>>" AdditiveExpression { $$ = new(driver.pool_) CYShiftRightUnsigned($1, $3); }
     ;
-
+/* }}} */
+/* 11.8 Relational Operators {{{ */
 RelationalExpressionNoIn_
     : "<" ShiftExpression { $$ = new(driver.pool_) CYLess(NULL, $2); }
     | ">" ShiftExpression { $$ = new(driver.pool_) CYGreater(NULL, $2); }
@@ -770,7 +845,8 @@ RelationalExpressionNoBF
     : ShiftExpressionNoBF { $$ = $1; }
     | RelationalExpressionNoBF RelationalExpression_ { $2->SetLeft($1); $$ = $2; }
     ;
-
+/* }}} */
+/* 11.9 Equality Operators {{{ */
 EqualityExpression
     : RelationalExpression { $$ = $1; }
     | EqualityExpression "==" RelationalExpression { $$ = new(driver.pool_) CYEqual($1, $3); }
@@ -794,7 +870,8 @@ EqualityExpressionNoBF
     | EqualityExpressionNoBF "===" RelationalExpression { $$ = new(driver.pool_) CYIdentical($1, $3); }
     | EqualityExpressionNoBF "!==" RelationalExpression { $$ = new(driver.pool_) CYNotIdentical($1, $3); }
     ;
-
+/* }}} */
+/* 11.10 Binary Bitwise Operators {{{ */
 BitwiseANDExpression
     : EqualityExpression { $$ = $1; }
     | BitwiseANDExpression "&" EqualityExpression { $$ = new(driver.pool_) CYBitwiseAnd($1, $3); }
@@ -839,7 +916,8 @@ BitwiseORExpressionNoBF
     : BitwiseXORExpressionNoBF { $$ = $1; }
     | BitwiseORExpressionNoBF "|" BitwiseXORExpression { $$ = new(driver.pool_) CYBitwiseOr($1, $3); }
     ;
-
+/* }}} */
+/* 11.11 Binary Logical Operators {{{ */
 LogicalANDExpression
     : BitwiseORExpression { $$ = $1; }
     | LogicalANDExpression "&&" BitwiseORExpression { $$ = new(driver.pool_) CYLogicalAnd($1, $3); }
@@ -869,7 +947,8 @@ LogicalORExpressionNoBF
     : LogicalANDExpressionNoBF { $$ = $1; }
     | LogicalORExpressionNoBF "||" LogicalANDExpression { $$ = new(driver.pool_) CYLogicalOr($1, $3); }
     ;
-
+/* }}} */
+/* 11.12 Conditional Operator ( ? : ) {{{ */
 ConditionalExpression
     : LogicalORExpression { $$ = $1; }
     | LogicalORExpression "?" AssignmentExpression ":" AssignmentExpression { $$ = new(driver.pool_) CYCondition($1, $3, $5); }
@@ -884,7 +963,8 @@ ConditionalExpressionNoBF
     : LogicalORExpressionNoBF { $$ = $1; }
     | LogicalORExpressionNoBF "?" AssignmentExpression ":" AssignmentExpression { $$ = new(driver.pool_) CYCondition($1, $3, $5); }
     ;
-
+/* }}} */
+/* 11.13 Assignment Operators {{{ */
 AssignmentExpression_
     : "=" AssignmentExpression { $$ = new(driver.pool_) CYAssign(NULL, $2); }
     | "*=" AssignmentExpression { $$ = new(driver.pool_) CYMultiplyAssign(NULL, $2); }
@@ -935,7 +1015,8 @@ AssignmentExpressionNoBF
     : ConditionalExpressionNoBF { $$ = $1; }
     | AssigneeExpressionNoBF AssignmentExpression_ { $2->SetLeft($1); $$ = $2; }
     ;
-
+/* }}} */
+/* 11.14 Comma Operator {{{ */
 Expression_
     : "," Expression { $$ = new(driver.pool_) CYCompound($2); }
     | { $$ = NULL; }
@@ -967,8 +1048,10 @@ ExpressionNoIn
 ExpressionNoBF
     : AssignmentExpressionNoBF Expression_ { if ($2) { $2->AddPrev($1); $$ = $2; } else $$ = $1; }
     ;
+/* }}} */
 
-Statement
+/* 12 Statements {{{ */
+Statement_
     : Block { $$ = $1; }
     | VariableStatement { $$ = $1; }
     | EmptyStatement { $$ = $1; }
@@ -985,8 +1068,17 @@ Statement
     | TryStatement { $$ = $1; }
     ;
 
+Statement
+    : Statement_ { $$ = $1; }
+    ;
+/* }}} */
+/* 12.1 Block {{{ */
+Block_
+    : "{" StatementListOpt "}" { $$ = $2; }
+    ;
+
 Block
-    : "{" StatementListOpt "}" { $$ = $2 ?: new(driver.pool_) CYEmpty(); }
+    : Block_ { if ($1) $$ = new(driver.pool_) CYBlock($1); else $$ = new(driver.pool_) CYEmpty(); }
     ;
 
 StatementList
@@ -997,9 +1089,10 @@ StatementListOpt
     : StatementList { $$ = $1; }
     | { $$ = NULL; }
     ;
-
+/* }}} */
+/* 12.2 Variable Statement {{{ */
 VariableStatement
-    : "var" VariableDeclarationList Terminator { $$ = $2; }
+    : "var" VariableDeclarationList Terminator { $$ = new(driver.pool_) CYVar($2); }
     ;
 
 VariableDeclarationList_
@@ -1045,15 +1138,18 @@ Initialiser
 InitialiserNoIn
     : "=" AssignmentExpressionNoIn { $$ = $2; }
     ;
-
+/* }}} */
+/* 12.3 Empty Statement {{{ */
 EmptyStatement
     : ";" { $$ = new(driver.pool_) CYEmpty(); }
     ;
-
+/* }}} */
+/* 12.4 Expression Statement {{{ */
 ExpressionStatement
     : ExpressionNoBF Terminator { $$ = new(driver.pool_) CYExpress($1); }
     ;
-
+/* }}} */
+/* 12.5 The if Statement {{{ */
 ElseStatementOpt
     : "else" Statement { $$ = $2; }
     | %prec "if" { $$ = NULL; }
@@ -1062,22 +1158,27 @@ ElseStatementOpt
 IfStatement
     : "if" "(" Expression ")" Statement ElseStatementOpt { $$ = new(driver.pool_) CYIf($3, $5, $6); }
     ;
+/* }}} */
 
+/* 12.6 Iteration Statements {{{ */
 IterationStatement
     : DoWhileStatement { $$ = $1; }
     | WhileStatement { $$ = $1; }
     | ForStatement { $$ = $1; }
     | ForInStatement { $$ = $1; }
     ;
-
+/* }}} */
+/* 12.6.1 The do-while Statement {{{ */
 DoWhileStatement
     : "do" Statement "while" "(" Expression ")" TerminatorOpt { $$ = new(driver.pool_) CYDoWhile($5, $2); }
     ;
-
+/* }}} */
+/* 12.6.2 The while Statement {{{ */
 WhileStatement
     : "while" "(" Expression ")" Statement { $$ = new(driver.pool_) CYWhile($3, $5); }
     ;
-
+/* }}} */
+/* 12.6.3 The for Statement {{{ */
 ForStatement
     : "for" "(" ForStatementInitialiser ";" ExpressionOpt ";" ExpressionOpt ")" Statement { $$ = new(driver.pool_) CYFor($3, $5, $7, $9); }
     ;
@@ -1086,7 +1187,8 @@ ForStatementInitialiser
     : ExpressionNoInOpt { $$ = $1; }
     | "var" VariableDeclarationListNoIn { $$ = $2; }
     ;
-
+/* }}} */
+/* 12.6.4 The for-in Statement {{{ */
 ForInStatement
     : "for" "(" ForInStatementInitialiser "in" Expression ")" Statement { $$ = new(driver.pool_) CYForIn($3, $5, $7); }
     ;
@@ -1095,23 +1197,30 @@ ForInStatementInitialiser
     : LeftHandSideExpression { $$ = $1; }
     | "var" VariableDeclarationNoIn { $$ = $2; }
     ;
+/* }}} */
 
+/* 12.7 The continue Statement {{{ */
 ContinueStatement
     : "continue" IdentifierOpt Terminator { $$ = new(driver.pool_) CYContinue($2); }
     ;
-
+/* }}} */
+/* 12.8 The break Statement {{{ */
 BreakStatement
     : "break" IdentifierOpt Terminator { $$ = new(driver.pool_) CYBreak($2); }
     ;
-
+/* }}} */
+/* 12.9 The return Statement {{{ */
 ReturnStatement
     : "return" ExpressionOpt Terminator { $$ = new(driver.pool_) CYReturn($2); }
     ;
-
+/* }}} */
+/* 12.10 The with Statement {{{ */
 WithStatement
     : "with" "(" Expression ")" Statement { $$ = new(driver.pool_) CYWith($3, $5); }
     ;
+/* }}} */
 
+/* 12.11 The switch Statement {{{ */
 SwitchStatement
     : "switch" "(" Expression ")" CaseBlock { $$ = new(driver.pool_) CYSwitch($3, $5); }
     ;
@@ -1133,35 +1242,40 @@ CaseClause
 DefaultClause
     : "default" ":" StatementListOpt { $$ = new(driver.pool_) CYClause(NULL, $3); }
     ;
-
+/* }}} */
+/* 12.12 Labelled Statements {{{ */
 LabelledStatement
-    : Identifier ":" Statement { $3->AddLabel($1); $$ = $3; }
+    : Identifier ":" Statement { $$ = new(driver.pool_) CYLabel($1, $3); }
     ;
-
+/* }}} */
+/* 12.13 The throw Statement {{{ */
 ThrowStatement
     : "throw" Expression Terminator { $$ = new(driver.pool_) CYThrow($2); }
     ;
-
+/* }}} */
+/* 12.14 The try Statement {{{ */
 TryStatement
-    : "try" Block CatchOpt FinallyOpt { $$ = new(driver.pool_) CYTry($2, $3, $4); }
+    : "try" Block_ CatchOpt FinallyOpt { $$ = new(driver.pool_) CYTry($2, $3, $4); }
     ;
 
 CatchOpt
-    : "catch" "(" Identifier ")" Block { $$ = new(driver.pool_) CYCatch($3, $5); }
+    : "catch" "(" Identifier ")" Block_ { $$ = new(driver.pool_) CYCatch($3, $5); }
     | { $$ = NULL; }
     ;
 
 FinallyOpt
-    : "finally" Block { $$ = $2; }
+    : "finally" Block_ { $$ = new(driver.pool_) CYFinally($2); }
     | { $$ = NULL; }
     ;
+/* }}} */
 
+/* 13 Function Definition {{{ */
 FunctionDeclaration
-    : "function" Identifier "(" FormalParameterList ")" "{" FunctionBody "}" { $$ = new(driver.pool_) CYFunction($2, $4, $7); }
+    : "function" Identifier "(" FormalParameterList ")" "{" FunctionBody "}" { $$ = new(driver.pool_) CYFunctionStatement($2, $4, $7); }
     ;
 
 FunctionExpression
-    : "function" IdentifierOpt "(" FormalParameterList ")" "{" FunctionBody "}" { $$ = new(driver.pool_) CYLambda($2, $4, $7); }
+    : "function" IdentifierOpt "(" FormalParameterList ")" "{" FunctionBody "}" { $$ = new(driver.pool_) CYFunctionExpression($2, $4, $7); }
     ;
 
 FormalParameterList_
@@ -1177,9 +1291,10 @@ FormalParameterList
 FunctionBody
     : SourceElements { $$ = $1; }
     ;
-
+/* }}} */
+/* 14 Program {{{ */
 Program
-    : SourceElements { driver.source_ = $1; }
+    : SourceElements { driver.program_ = new(driver.pool_) CYProgram($1); }
     ;
 
 SourceElements
@@ -1188,11 +1303,12 @@ SourceElements
     ;
 
 SourceElement
-    : Statement { $$ = $1; }
+    : Statement_ { $$ = $1; }
     | FunctionDeclaration { $$ = $1; }
     ;
+/* }}} */
 
-/* Objective-C Extensions {{{ */
+/* Cycript: @class Declaration {{{ */
 ClassSuperOpt
     : ":" MemberExpressionNoBF { $$ = $2; }
     | { $$ = NULL; }
@@ -1213,7 +1329,7 @@ TypeOpt
     ;
 
 MessageParameter
-    : Word ":" TypeOpt Identifier { $$ = new CYMessageParameter($1, $3, $4); }
+    : Word ":" TypeOpt Identifier { $$ = new(driver.pool_) CYMessageParameter($1, $3, $4); }
     ;
 
 MessageParameterListOpt
@@ -1227,11 +1343,11 @@ MessageParameterList
 
 MessageParameters
     : MessageParameterList { $$ = $1; }
-    | Word { $$ = new CYMessageParameter($1, NULL, NULL); }
+    | Word { $$ = new(driver.pool_) CYMessageParameter($1, NULL, NULL); }
     ;
 
 ClassMessageDeclaration
-    : MessageScope TypeOpt MessageParameters "{" FunctionBody "}" { $$ = new CYMessage($1, $2, $3, $5); }
+    : MessageScope TypeOpt MessageParameters "{" FunctionBody "}" { $$ = new(driver.pool_) CYMessage($1, $2, $3, $5); }
     ;
 
 ClassMessageDeclarationListOpt
@@ -1244,15 +1360,33 @@ ClassName
     | "(" AssignmentExpression ")" { $$ = $2; }
     ;
 
-ClassDeclaration
-    : "@class" Identifier ClassSuperOpt ClassFieldList ClassMessageDeclarationListOpt "@end" { $$ = new CYClass($2, $3, $4, $5); }
-    | "@class" ClassName ClassMessageDeclarationListOpt "@end" { $$ = new CYCategory($2, $3); }
+ClassNameOpt
+    : ClassName { $$ = $1; }
+    | { $$ = NULL; }
+    ;
+
+ClassExpression
+    : "@class" ClassNameOpt ClassSuperOpt ClassFieldList ClassMessageDeclarationListOpt "@end" { $$ = new(driver.pool_) CYClassExpression($2, $3, $4, $5); }
     ;
 
-SourceElement
-    : ClassDeclaration { $$ = $1; }
+ClassStatement
+    : "@class" ClassName ClassSuperOpt ClassFieldList ClassMessageDeclarationListOpt "@end" { $$ = new(driver.pool_) CYClassStatement($2, $3, $4, $5); }
     ;
 
+CategoryStatement
+    : "@class" ClassName ClassMessageDeclarationListOpt "@end" { $$ = new(driver.pool_) CYCategory($2, $3); }
+    ;
+
+PrimaryExpression
+    : ClassExpression { $$ = $1; }
+    ;
+
+Statement_
+    : ClassStatement { $$ = $1; }
+    | CategoryStatement { $$ = $1; }
+    ;
+/* }}} */
+/* Cycript: Send Message {{{ */
 VariadicCall
     : "," AssignmentExpression VariadicCall { $$ = new(driver.pool_) CYArgument(NULL, $2, $3); }
     | { $$ = NULL; }
@@ -1292,10 +1426,10 @@ SelectorExpression
 
 PrimaryExpression_
     : MessageExpression { $$ = $1; }
-    | "@selector" "(" SelectorExpression ")" { $$ = new CYSelector($3); }
+    | "@selector" "(" SelectorExpression ")" { $$ = new(driver.pool_) CYSelector($3); }
     ;
 /* }}} */
-
+/* Cycript: Pointer Indirection/Addressing {{{ */
 AssigneeExpression_
     : "*" UnaryExpression { $$ = new(driver.pool_) CYIndirect($2); }
     ;
@@ -1305,7 +1439,57 @@ UnaryExpression_
     ;
 
 MemberAccess
-    : "->" Identifier { $$ = new(driver.pool_) CYIndirectMember(NULL, new(driver.pool_) CYString($2)); }
+    : "->" "[" Expression "]" { $$ = new(driver.pool_) CYIndirectMember(NULL, $3); }
+    | "->" Identifier { $$ = new(driver.pool_) CYIndirectMember(NULL, new(driver.pool_) CYString($2)); }
+    ;
+/* }}} */
+/* ECMAScript5: Object Literal Trailing Comma {{{ */
+PropertyNameAndValueList_
+    : "," { $$ = NULL; }
     ;
+/* }}} */
+/* JavaScript 1.7: Array Comprehensions {{{ */
+IfComprehension
+    : "if" "(" Expression ")" { $$ = new(driver.pool_) CYIfComprehension($3); }
+    ;
+
+ForComprehension
+    : "for" "(" Identifier "in" Expression ")" { $$ = new(driver.pool_) CYForInComprehension($3, $5); }
+    | "for" "each" "(" Identifier "in" Expression ")" { $$ = new(driver.pool_) CYForEachInComprehension($4, $6); }
+    ;
+
+ComprehensionListOpt
+    : ComprehensionList { $$ = $1; }
+    | IfComprehension { $$ = $1; }
+    | { $$ = NULL; }
+    ;
+
+ComprehensionList
+    : ForComprehension ComprehensionListOpt { $1->SetNext($2); $$ = $1; }
+    ;
+
+PrimaryExpression_
+    : "[" AssignmentExpression ComprehensionList "]" { $$ = new(driver.pool_) CYArrayComprehension($2, $3); }
+    ;
+/* }}} */
+/* JavaScript 1.7: for each {{{ */
+ForInStatement
+    : "for" "each" "(" ForInStatementInitialiser "in" Expression ")" Statement { $$ = new(driver.pool_) CYForEachIn($4, $6, $8); }
+    ;
+/* }}} */
+/* JavaScript 1.7: let Statements {{{ *//*
+LetStatement
+    : "let" "(" VariableDeclarationList ")" Block_ { $$ = new(driver.pool_) CYLet($3, $5); }
+    ;
+
+Statement
+    : LetStatement
+    ;
+*//* }}} */
+/* JavaScript FTW: Function Statements {{{ */
+Statement
+    : FunctionDeclaration { driver.Warning(yylloc, "warning, FunctionDeclaration is a SourceElement, not a Statement"); } { $$ = $1; }
+    ;
+/* }}} */
 
 %%