Throw, not print, errors in type signature parser.

[cycript.git] / Parser.ypp.in

diff --git a/Parser.ypp.in b/Parser.ypp.in
index 21db45037da31d2ddcd7708c46804b8df858a16a..0d8e87d50109910107dd4d3b02bff9953f3e0516 100644 (file)
--- a/Parser.ypp.in
+++ b/Parser.ypp.in
@@ -1,5 +1,5 @@
-/* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2015  Jay Freeman (saurik)
+/* Cycript - The Truly Universal Scripting Language
+ * Copyright (C) 2009-2016  Jay Freeman (saurik)

 */
 
 /* GNU Affero General Public License, Version 3 {{{ */
 */
 
 /* GNU Affero General Public License, Version 3 {{{ */


@@ -27,6 +27,7 @@
 #include "Driver.hpp"
 #include "Parser.hpp"
 #include "Stack.hpp"
 #include "Driver.hpp"
 #include "Parser.hpp"
 #include "Stack.hpp"

+#include "Syntax.hpp"

 #define CYNew new(driver.pool_)
 
 @begin ObjectiveC
 #define CYNew new(driver.pool_)
 
 @begin ObjectiveC


@@ -45,14 +46,16 @@
 %union { CYMember *access_; }
 %union { CYArgument *argument_; }
 %union { CYAssignment *assignment_; }
 %union { CYMember *access_; }
 %union { CYArgument *argument_; }
 %union { CYAssignment *assignment_; }

+%union { CYBinding *binding_; }
+%union { CYBindings *bindings_; }

 %union { CYBoolean *boolean_; }
 %union { CYBoolean *boolean_; }

+%union { CYBraced *braced_; }

 %union { CYClause *clause_; }
 %union { cy::Syntax::Catch *catch_; }
 %union { CYClassTail *classTail_; }
 %union { CYComprehension *comprehension_; }
 %union { CYClause *clause_; }
 %union { cy::Syntax::Catch *catch_; }
 %union { CYClassTail *classTail_; }
 %union { CYComprehension *comprehension_; }

-%union { CYDeclaration *declaration_; }
-%union { CYDeclarations *declarations_; }

 %union { CYElement *element_; }
 %union { CYElement *element_; }

+%union { CYEnumConstant *constant_; }

 %union { CYExpression *expression_; }
 %union { CYFalse *false_; }
 %union { CYVariable *variable_; }
 %union { CYExpression *expression_; }
 %union { CYFalse *false_; }
 %union { CYVariable *variable_; }


@@ -61,6 +64,7 @@
 %union { CYForInInitializer *forin_; }
 %union { CYFunctionParameter *functionParameter_; }
 %union { CYIdentifier *identifier_; }
 %union { CYForInInitializer *forin_; }
 %union { CYFunctionParameter *functionParameter_; }
 %union { CYIdentifier *identifier_; }

+%union { CYImportSpecifier *import_; }

 %union { CYInfix *infix_; }
 %union { CYLiteral *literal_; }
 %union { CYMethod *method_; }
 %union { CYInfix *infix_; }
 %union { CYLiteral *literal_; }
 %union { CYMethod *method_; }


@@ -70,7 +74,7 @@
 %union { CYParenthetical *parenthetical_; }
 %union { CYProperty *property_; }
 %union { CYPropertyName *propertyName_; }
 %union { CYParenthetical *parenthetical_; }
 %union { CYProperty *property_; }
 %union { CYPropertyName *propertyName_; }

-%union { CYRubyProc *rubyProc_; }
+%union { CYTypeSigning signing_; }

 %union { CYSpan *span_; }
 %union { CYStatement *statement_; }
 %union { CYString *string_; }
 %union { CYSpan *span_; }
 %union { CYStatement *statement_; }
 %union { CYString *string_; }


@@ -80,16 +84,22 @@
 %union { CYWord *word_; }
 
 @begin C
 %union { CYWord *word_; }
 
 @begin C

+%union { CYTypeIntegral *integral_; }
+%union { CYTypeStructField *structField_; }

 %union { CYTypeModifier *modifier_; }
 %union { CYTypeSpecifier *specifier_; }
 %union { CYTypeModifier *modifier_; }
 %union { CYTypeSpecifier *specifier_; }

-%union { CYTypedIdentifier *typedIdentifier_; }
+%union { CYTypedFormal *typedFormal_; }
+%union { CYTypedLocation *typedLocation_; }
+%union { CYTypedName *typedName_; }

 %union { CYTypedParameter *typedParameter_; }
 %union { CYTypedParameter *typedParameter_; }

+%union { CYType *typedThing_; }

 @end
 
 @begin ObjectiveC
 @end
 
 @begin ObjectiveC

+%union { CYObjCKeyValue *keyValue_; }
+%union { CYImplementationField *implementationField_; }

 %union { CYMessage *message_; }
 %union { CYMessageParameter *messageParameter_; }
 %union { CYMessage *message_; }
 %union { CYMessageParameter *messageParameter_; }

-%union { CYImplementationField *implementationField_; }

 %union { CYProtocol *protocol_; }
 %union { CYSelectorPart *selector_; }
 @end
 %union { CYProtocol *protocol_; }
 %union { CYSelectorPart *selector_; }
 @end


@@ -114,25 +124,62 @@ int cylex(YYSTYPE *, CYLocation *, void *);
 %code {
 
 #undef yylex
 %code {
 
 #undef yylex

-_finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CYDriver &driver) {
-    if (driver.mark_ == CYMarkIgnore);
-    else if (driver.mark_ == CYMarkScript) {
-        driver.mark_ = CYMarkIgnore;
-        return cy::parser::token::MarkScript;
-    } else if (driver.mark_ == CYMarkModule) {
-        driver.mark_ = CYMarkIgnore;
-        return cy::parser::token::MarkModule;
-    }

 
 

+typedef cy::parser::token tk;
+
+_finline int cylex_(cy::parser::semantic_type *semantic, CYLocation *location, CYDriver &driver) {
+    driver.newline_ = false;
+  lex:

     YYSTYPE data;
     int token(cylex(&data, location, driver.scanner_));
     *semantic = data.semantic_;
     YYSTYPE data;
     int token(cylex(&data, location, driver.scanner_));
     *semantic = data.semantic_;

+
+    switch (token) {
+        case tk::OpenBrace:
+        case tk::OpenBracket:
+        case tk::OpenParen:
+            driver.in_.push(false);
+        break;
+
+        case tk::_in_:
+            if (driver.in_.top())
+                token = tk::_in__;
+        break;
+
+        case tk::CloseBrace:
+        case tk::CloseBracket:
+        case tk::CloseParen:
+            driver.in_.pop();
+        break;
+
+
+        case tk::_yield_:
+            if (driver.yield_.top())
+                token = tk::_yield__;
+        break;
+
+        case tk::NewLine:
+            driver.newline_ = true;
+            goto lex;
+        break;
+    }
+

     return token;
 }
 
     return token;
 }
 

+#define yylex_(semantic, location, driver) ({ \
+    int type; \
+    if (driver.hold_ == cy::parser::empty_symbol) \
+        type = yytranslate_(cylex_(semantic, location, driver)); \
+    else { \
+        type = driver.hold_; \
+        driver.hold_ = cy::parser::empty_symbol; \
+    } \
+type; })
+

 #define CYLEX() do if (yyla.empty()) { \
     YYCDEBUG << "Mapping a token: "; \
 #define CYLEX() do if (yyla.empty()) { \
     YYCDEBUG << "Mapping a token: "; \

-    yyla.type = yytranslate_(yylex(&yyla.value, &yyla.location, driver)); \
+    yyla.type = yylex_(&yyla.value, &yyla.location, driver); \

     YY_SYMBOL_PRINT("Next token is", yyla); \
 } while (false)
 
     YY_SYMBOL_PRINT("Next token is", yyla); \
 } while (false)
 


@@ -142,14 +189,31 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
         yyla.type = yytranslate_(token::to); \
 } while (false)
 
         yyla.type = yytranslate_(token::to); \
 } while (false)
 

+#define CYHLD(location, token) do { \
+    if (driver.hold_ != empty_symbol) \
+        CYERR(location, "unexpected hold"); \
+    driver.hold_ = yyla.type; \
+    yyla.type = yytranslate_(token); \
+} while (false)
+

 #define CYERR(location, message) do { \
     error(location, message); \
     YYABORT; \
 } while (false)
 
 #define CYERR(location, message) do { \
     error(location, message); \
     YYABORT; \
 } while (false)
 

+#define CYEOK() do { \
+    yyerrok; \
+    driver.errors_.pop_back(); \
+} while (false)
+

 #define CYNOT(location) \
     CYERR(location, "unimplemented feature")
 
 #define CYNOT(location) \
     CYERR(location, "unimplemented feature")
 

+#define CYMPT(location) do { \
+    if (!yyla.empty() && yyla.type_get() != yyeof_) \
+        CYERR(location, "unexpected lookahead"); \
+} while (false)
+

 }
 
 %name-prefix "cy"
 }
 
 %name-prefix "cy"


@@ -158,6 +222,18 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 
 %initial-action {
     @$.begin.filename = @$.end.filename = &driver.filename_;
 
 %initial-action {
     @$.begin.filename = @$.end.filename = &driver.filename_;

+
+    switch (driver.mark_) {
+        case CYMarkScript:
+            driver.hold_ = yytranslate_(token::MarkScript);
+            break;
+        case CYMarkModule:
+            driver.hold_ = yytranslate_(token::MarkModule);
+            break;
+        case CYMarkExpression:
+            driver.hold_ = yytranslate_(token::MarkExpression);
+            break;
+    }

 };
 
 %locations
 };
 
 %locations


@@ -192,13 +268,11 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token SlashRight "/>"
 %token LeftSlash "</"
 
 %token SlashRight "/>"
 %token LeftSlash "</"
 

-%token ColonColon "::"

 %token PeriodPeriod ".."
 @end
 
 @begin E4X ObjectiveC
 %token At "@"
 %token PeriodPeriod ".."
 @end
 
 @begin E4X ObjectiveC
 %token At "@"

-%token Pound "#"

 @end
 
 %token Ampersand "&"
 @end
 
 %token Ampersand "&"


@@ -210,14 +284,12 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token EqualEqual "=="
 %token EqualEqualEqual "==="
 %token EqualRight "=>"
 %token EqualEqual "=="
 %token EqualEqualEqual "==="
 %token EqualRight "=>"

-%token EqualRight_ "\n=>"

 %token Exclamation "!"
 %token ExclamationEqual "!="
 %token ExclamationEqualEqual "!=="
 %token Hyphen "-"
 %token HyphenEqual "-="
 %token HyphenHyphen "--"
 %token Exclamation "!"
 %token ExclamationEqual "!="
 %token ExclamationEqualEqual "!=="
 %token Hyphen "-"
 %token HyphenEqual "-="
 %token HyphenHyphen "--"

-%token HyphenHyphen_ "\n--"

 %token HyphenRight "->"
 %token Left "<"
 %token LeftEqual "<="
 %token HyphenRight "->"
 %token Left "<"
 %token LeftEqual "<="


@@ -233,7 +305,6 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token Plus "+"
 %token PlusEqual "+="
 %token PlusPlus "++"
 %token Plus "+"
 %token PlusEqual "+="
 %token PlusPlus "++"

-%token PlusPlus_ "\n++"

 %token Right ">"
 %token RightEqual ">="
 %token RightRight ">>"
 %token Right ">"
 %token RightEqual ">="
 %token RightRight ">>"


@@ -247,10 +318,13 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token Tilde "~"
 
 %token Colon ":"
 %token Tilde "~"
 
 %token Colon ":"

+%token ColonColon "::"

 %token Comma ","
 %token Question "?"
 %token SemiColon ";"
 %token Comma ","
 %token Question "?"
 %token SemiColon ";"

+%token Pound "#"

 %token NewLine "\n"
 %token NewLine "\n"

+%token __ ""

 
 %token Comment
 
 
 %token Comment
 


@@ -258,11 +332,12 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token CloseParen ")"
 
 %token OpenBrace "{"
 %token CloseParen ")"
 
 %token OpenBrace "{"

-%token OpenBrace_ "\n{"
-%token OpenBrace__ ";{"
+%token OpenBrace_ ";{"
+%token OpenBrace_let "let {"

 %token CloseBrace "}"
 
 %token OpenBracket "["
 %token CloseBrace "}"
 
 %token OpenBracket "["

+%token OpenBracket_let "let ["

 %token CloseBracket "]"
 
 %token At_error_ "@error"
 %token CloseBracket "]"
 
 %token At_error_ "@error"


@@ -275,6 +350,7 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token _typedef_ "typedef"
 %token _unsigned_ "unsigned"
 %token _signed_ "signed"
 %token _typedef_ "typedef"
 %token _unsigned_ "unsigned"
 %token _signed_ "signed"

+%token _struct_ "struct"

 %token _extern_ "extern"
 @end
 
 %token _extern_ "extern"
 @end
 


@@ -300,6 +376,7 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token _null_ "null"
 %token _true_ "true"
 
 %token _null_ "null"
 %token _true_ "true"
 

+%token _as_ "as"

 %token _break_ "break"
 %token _case_ "case"
 %token _catch_ "catch"
 %token _break_ "break"
 %token _case_ "case"
 %token _catch_ "catch"


@@ -327,7 +404,6 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token _instanceof_ "instanceof"
 %token _new_ "new"
 %token _return_ "return"
 %token _instanceof_ "instanceof"
 %token _new_ "new"
 %token _return_ "return"

-%token _return__ "!return"

 %token _super_ "super"
 %token _switch_ "switch"
 %token _target_ "target"
 %token _super_ "super"
 %token _switch_ "switch"
 %token _target_ "target"


@@ -355,21 +431,27 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token _goto_ "goto"
 %token _implements_ "implements"
 %token _int_ "int"
 %token _goto_ "goto"
 %token _implements_ "implements"
 %token _int_ "int"

+%token ___int128_ "__int128"

 %token _interface_ "interface"
 %token _let_ "let"
 %token _interface_ "interface"
 %token _let_ "let"

+%token _let__ "!let"

 %token _long_ "long"
 %token _native_ "native"
 %token _package_ "package"
 %token _private_ "private"
 %token _protected_ "protected"
 %token _long_ "long"
 %token _native_ "native"
 %token _package_ "package"
 %token _private_ "private"
 %token _protected_ "protected"

+%token ___proto___ "__proto__"

 %token _prototype_ "prototype"
 %token _public_ "public"
 %token _prototype_ "prototype"
 %token _public_ "public"

+%token ___restrict_ "__restrict"
+%token _restrict_ "restrict"

 %token _set_ "set"
 %token _short_ "short"
 %token _static_ "static"
 %token _synchronized_ "synchronized"
 %token _throws_ "throws"
 %token _transient_ "transient"
 %token _set_ "set"
 %token _short_ "short"
 %token _static_ "static"
 %token _synchronized_ "synchronized"
 %token _throws_ "throws"
 %token _transient_ "transient"

+%token _typeid_ "typeid"

 %token _volatile_ "volatile"
 %token _yield_ "yield"
 %token _yield__ "!yield"
 %token _volatile_ "volatile"
 %token _yield_ "yield"
 %token _yield__ "!yield"


@@ -385,9 +467,9 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %token _SEL_ "SEL"
 @end
 
 %token _SEL_ "SEL"
 @end
 

-%token _auto_ "auto"

 %token _each_ "each"
 %token _of_ "of"
 %token _each_ "each"
 %token _of_ "of"

+%token _of__ "!of"

 
 @begin E4X
 %token _namespace_ "namespace"
 
 @begin E4X
 %token _namespace_ "namespace"


@@ -395,40 +477,43 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 @end
 
 %token AutoComplete
 @end
 
 %token AutoComplete

-%token YieldStar
+%token YieldStar "yield *"

 
 %token <identifier_> Identifier_
 %token <number_> NumericLiteral
 %token <string_> StringLiteral
 
 %token <identifier_> Identifier_
 %token <number_> NumericLiteral
 %token <string_> StringLiteral

-%token <literal_> RegularExpressionLiteral
+%token <literal_> RegularExpressionLiteral_

 
 %token <string_> NoSubstitutionTemplate
 %token <string_> TemplateHead
 %token <string_> TemplateMiddle
 %token <string_> TemplateTail
 
 
 %token <string_> NoSubstitutionTemplate
 %token <string_> TemplateHead
 %token <string_> TemplateMiddle
 %token <string_> TemplateTail
 

+%type <target_> AccessExpression

 %type <expression_> AdditiveExpression
 %type <argument_> ArgumentList_
 %type <argument_> ArgumentList
 %type <argument_> ArgumentListOpt
 %type <argument_> Arguments
 %type <target_> ArrayComprehension
 %type <expression_> AdditiveExpression
 %type <argument_> ArgumentList_
 %type <argument_> ArgumentList
 %type <argument_> ArgumentListOpt
 %type <argument_> Arguments
 %type <target_> ArrayComprehension

+%type <element_> ArrayElement

 %type <literal_> ArrayLiteral
 %type <expression_> ArrowFunction
 %type <functionParameter_> ArrowParameters
 %type <expression_> AssignmentExpression
 %type <literal_> ArrayLiteral
 %type <expression_> ArrowFunction
 %type <functionParameter_> ArrowParameters
 %type <expression_> AssignmentExpression

-%type <expression_> AssignmentExpressionOpt

 %type <identifier_> BindingIdentifier
 %type <identifier_> BindingIdentifierOpt
 %type <identifier_> BindingIdentifier
 %type <identifier_> BindingIdentifierOpt

-%type <declarations_> BindingList_
-%type <declarations_> BindingList
+%type <bindings_> BindingList_
+%type <bindings_> BindingList

 %type <expression_> BitwiseANDExpression
 %type <statement_> Block
 %type <statement_> BlockStatement
 %type <boolean_> BooleanLiteral
 %type <expression_> BitwiseANDExpression
 %type <statement_> Block
 %type <statement_> BlockStatement
 %type <boolean_> BooleanLiteral

-%type <declaration_> BindingElement
+%type <binding_> BindingElement

 %type <expression_> BitwiseORExpression
 %type <expression_> BitwiseXORExpression
 %type <expression_> BitwiseORExpression
 %type <expression_> BitwiseXORExpression

+%type <target_> BracedExpression_
+%type <target_> BracedExpression

 %type <statement_> BreakStatement
 %type <statement_> BreakableStatement
 %type <expression_> CallExpression_
 %type <statement_> BreakStatement
 %type <statement_> BreakableStatement
 %type <expression_> CallExpression_


@@ -453,10 +538,10 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <statement_> ConciseBody
 %type <parenthetical_> CoverParenthesizedExpressionAndArrowParameterList
 %type <statement_> DebuggerStatement
 %type <statement_> ConciseBody
 %type <parenthetical_> CoverParenthesizedExpressionAndArrowParameterList
 %type <statement_> DebuggerStatement

-%type <statement_> Declaration__

 %type <statement_> Declaration_
 %type <statement_> Declaration
 %type <clause_> DefaultClause
 %type <statement_> Declaration_
 %type <statement_> Declaration
 %type <clause_> DefaultClause

+%type <element_> ElementList_

 %type <element_> ElementList
 %type <element_> ElementListOpt
 %type <statement_> ElseStatementOpt
 %type <element_> ElementList
 %type <element_> ElementListOpt
 %type <statement_> ElseStatementOpt


@@ -466,15 +551,19 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <expression_> ExpressionOpt
 %type <for_> ExpressionStatement_
 %type <statement_> ExpressionStatement
 %type <expression_> ExpressionOpt
 %type <for_> ExpressionStatement_
 %type <statement_> ExpressionStatement

+%type <statement_> ExternC
+%type <statement_> ExternCStatement
+%type <statement_> ExternCStatementListOpt

 %type <finally_> Finally
 %type <finally_> Finally

-%type <declaration_> ForBinding
+%type <binding_> ForBinding

 %type <forin_> ForDeclaration
 %type <forin_> ForInStatementInitializer
 %type <for_> ForStatementInitializer
 %type <forin_> ForDeclaration
 %type <forin_> ForInStatementInitializer
 %type <for_> ForStatementInitializer

-%type <declaration_> FormalParameter
+%type <binding_> FormalParameter

 %type <functionParameter_> FormalParameterList_
 %type <functionParameter_> FormalParameterList
 %type <functionParameter_> FormalParameters
 %type <functionParameter_> FormalParameterList_
 %type <functionParameter_> FormalParameterList
 %type <functionParameter_> FormalParameters

+%type <string_> FromClause

 %type <statement_> FunctionBody
 %type <statement_> FunctionDeclaration
 %type <target_> FunctionExpression
 %type <statement_> FunctionBody
 %type <statement_> FunctionDeclaration
 %type <target_> FunctionExpression


@@ -485,10 +574,22 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <method_> GeneratorMethod
 %type <statement_> HoistableDeclaration
 %type <identifier_> Identifier
 %type <method_> GeneratorMethod
 %type <statement_> HoistableDeclaration
 %type <identifier_> Identifier

+%type <identifier_> IdentifierNoOf

 %type <identifier_> IdentifierType
 %type <identifier_> IdentifierType

+%type <identifier_> IdentifierTypeNoOf
+%type <identifier_> IdentifierTypeOpt

 %type <word_> IdentifierName
 %type <variable_> IdentifierReference
 %type <statement_> IfStatement
 %type <word_> IdentifierName
 %type <variable_> IdentifierReference
 %type <statement_> IfStatement

+%type <import_> ImportClause
+%type <statement_> ImportDeclaration
+%type <import_> ImportSpecifier
+%type <identifier_> ImportedBinding
+%type <import_> ImportedDefaultBinding
+%type <import_> ImportsList_
+%type <import_> ImportsList
+%type <import_> ImportsListOpt
+%type <target_> IndirectExpression

 %type <expression_> Initializer
 %type <expression_> InitializerOpt
 %type <statement_> IterationStatement
 %type <expression_> Initializer
 %type <expression_> InitializerOpt
 %type <statement_> IterationStatement


@@ -498,7 +599,7 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <assignment_> LeftHandSideAssignment
 %type <target_> LeftHandSideExpression
 %type <bool_> LetOrConst
 %type <assignment_> LeftHandSideAssignment
 %type <target_> LeftHandSideExpression
 %type <bool_> LetOrConst

-%type <declaration_> LexicalBinding
+%type <binding_> LexicalBinding

 %type <for_> LexicalDeclaration_
 %type <statement_> LexicalDeclaration
 %type <literal_> Literal
 %type <for_> LexicalDeclaration_
 %type <statement_> LexicalDeclaration
 %type <literal_> Literal


@@ -508,8 +609,16 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <access_> MemberAccess
 %type <target_> MemberExpression
 %type <method_> MethodDefinition
 %type <access_> MemberAccess
 %type <target_> MemberExpression
 %type <method_> MethodDefinition

+%type <statement_> ModuleBody
+%type <statement_> ModuleBodyOpt
+%type <statement_> ModuleItem
+%type <statement_> ModuleItemList
+%type <statement_> ModuleItemListOpt

 %type <module_> ModulePath
 %type <module_> ModulePath

+%type <string_> ModuleSpecifier

 %type <expression_> MultiplicativeExpression
 %type <expression_> MultiplicativeExpression

+%type <import_> NameSpaceImport
+%type <import_> NamedImports

 %type <target_> NewExpression
 %type <null_> NullLiteral
 %type <literal_> ObjectLiteral
 %type <target_> NewExpression
 %type <null_> NullLiteral
 %type <literal_> ObjectLiteral


@@ -520,10 +629,12 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <property_> PropertyDefinitionList_
 %type <property_> PropertyDefinitionList
 %type <property_> PropertyDefinitionListOpt
 %type <property_> PropertyDefinitionList_
 %type <property_> PropertyDefinitionList
 %type <property_> PropertyDefinitionListOpt

-%type <declaration_> PropertySetParameterList
+%type <functionParameter_> PropertySetParameterList
+%type <literal_> RegularExpressionLiteral
+%type <bool_> RegularExpressionSlash

 %type <expression_> RelationalExpression
 %type <statement_> ReturnStatement
 %type <expression_> RelationalExpression
 %type <statement_> ReturnStatement

-%type <rubyProc_> RubyProcExpression
+%type <braced_> BracedParameter

 %type <functionParameter_> RubyProcParameterList_
 %type <functionParameter_> RubyProcParameterList
 %type <functionParameter_> RubyProcParameters
 %type <functionParameter_> RubyProcParameterList_
 %type <functionParameter_> RubyProcParameterList
 %type <functionParameter_> RubyProcParameters


@@ -532,7 +643,7 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <statement_> ScriptBody
 %type <statement_> ScriptBodyOpt
 %type <expression_> ShiftExpression
 %type <statement_> ScriptBody
 %type <statement_> ScriptBodyOpt
 %type <expression_> ShiftExpression

-%type <declaration_> SingleNameBinding
+%type <binding_> SingleNameBinding

 %type <statement_> Statement__
 %type <statement_> Statement_
 %type <statement_> Statement
 %type <statement_> Statement__
 %type <statement_> Statement_
 %type <statement_> Statement


@@ -547,33 +658,54 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <span_> TemplateSpans
 %type <statement_> ThrowStatement
 %type <statement_> TryStatement
 %type <span_> TemplateSpans
 %type <statement_> ThrowStatement
 %type <statement_> TryStatement

+%type <statement_> TypeDefinition

 %type <expression_> UnaryExpression_
 %type <expression_> UnaryExpression
 %type <expression_> UnaryExpression_
 %type <expression_> UnaryExpression

-%type <declaration_> VariableDeclaration
-%type <declarations_> VariableDeclarationList_
-%type <declarations_> VariableDeclarationList
+%type <binding_> VariableDeclaration
+%type <bindings_> VariableDeclarationList_
+%type <bindings_> VariableDeclarationList

 %type <for_> VariableStatement_
 %type <statement_> VariableStatement
 %type <statement_> WithStatement
 %type <word_> Word
 %type <for_> VariableStatement_
 %type <statement_> VariableStatement
 %type <statement_> WithStatement
 %type <word_> Word

+%type <word_> WordNoUnary

 @begin ObjectiveC
 %type <word_> WordOpt
 @end
 %type <expression_> YieldExpression
 
 @begin C
 @begin ObjectiveC
 %type <word_> WordOpt
 @end
 %type <expression_> YieldExpression
 
 @begin C

-%type <specifier_> IntegerType
-%type <specifier_> IntegerTypeOpt
-%type <typedIdentifier_> PrefixedType
+%type <constant_> EnumConstantListOpt_
+%type <constant_> EnumConstantListOpt
+%type <number_> IntegerNumber
+%type <integral_> IntegerType
+%type <integral_> IntegerTypeOpt
+%type <typedName_> PrefixedType
+%type <specifier_> PrimitiveReference

 %type <specifier_> PrimitiveType
 %type <specifier_> PrimitiveType

-%type <typedIdentifier_> SuffixedType
-%type <typedIdentifier_> TypeSignifier
+%type <structField_> StructFieldListOpt
+%type <typedName_> SuffixedType
+%type <typedName_> SuffixedTypeOpt
+%type <typedName_> TypeSignifier
+%type <typedName_> TypeSignifierNone
+%type <typedName_> TypeSignifierOpt
+%type <signing_> TypeSigning
+%type <modifier_> ParameterTail

 %type <modifier_> TypeQualifierLeft
 %type <modifier_> TypeQualifierLeft

-%type <typedIdentifier_> TypeQualifierRight
-%type <typedIdentifier_> TypedIdentifier
-%type <typedParameter_> TypedParameterList_
-%type <typedParameter_> TypedParameterList
-%type <typedParameter_> TypedParameterListOpt
+%type <modifier_> TypeQualifierLeftOpt
+%type <typedName_> TypeQualifierRight
+%type <typedName_> TypeQualifierRightOpt
+%type <typedName_> TypedIdentifierDefinition
+%type <typedThing_> TypedIdentifierEncoding
+%type <typedName_> TypedIdentifierField
+%type <typedName_> TypedIdentifierMaybe
+%type <typedLocation_> TypedIdentifierNo
+%type <typedName_> TypedIdentifierTagged
+%type <typedName_> TypedIdentifierYes
+%type <typedFormal_> TypedParameterList_
+%type <typedFormal_> TypedParameterList
+%type <typedFormal_> TypedParameterListOpt
+%type <typedParameter_> TypedParameters

 @end
 
 @begin ObjectiveC
 @end
 
 @begin ObjectiveC


@@ -582,14 +714,16 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <statement_> CategoryStatement
 %type <expression_> ClassSuperOpt
 %type <expression_> ConditionalExpressionClassic
 %type <statement_> CategoryStatement
 %type <expression_> ClassSuperOpt
 %type <expression_> ConditionalExpressionClassic

-%type <implementationField_> ImplementationFieldListOpt
-%type <implementationField_> ImplementationFields

 %type <message_> ClassMessageDeclaration
 %type <message_> ClassMessageDeclarationListOpt
 %type <protocol_> ClassProtocolListOpt
 %type <protocol_> ClassProtocols
 %type <protocol_> ClassProtocolsOpt
 %type <message_> ClassMessageDeclaration
 %type <message_> ClassMessageDeclarationListOpt
 %type <protocol_> ClassProtocolListOpt
 %type <protocol_> ClassProtocols
 %type <protocol_> ClassProtocolsOpt

+%type <implementationField_> ImplementationFieldListOpt

 %type <statement_> ImplementationStatement
 %type <statement_> ImplementationStatement

+%type <keyValue_> KeyValuePairList_
+%type <keyValue_> KeyValuePairList
+%type <keyValue_> KeyValuePairListOpt

 %type <target_> MessageExpression
 %type <messageParameter_> MessageParameter
 %type <messageParameter_> MessageParameters
 %type <target_> MessageExpression
 %type <messageParameter_> MessageParameter
 %type <messageParameter_> MessageParameters


@@ -603,7 +737,7 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <selector_> SelectorExpressionOpt
 %type <argument_> SelectorList
 %type <word_> SelectorWordOpt
 %type <selector_> SelectorExpressionOpt
 %type <argument_> SelectorList
 %type <word_> SelectorWordOpt

-%type <typedIdentifier_> TypeOpt
+%type <typedThing_> TypeOpt

 %type <argument_> VariadicCall
 @end
 
 %type <argument_> VariadicCall
 @end
 


@@ -624,27 +758,29 @@ _finline int yylex(cy::parser::semantic_type *semantic, CYLocation *location, CY
 %type <attribute_> AttributeIdentifier
 /* XXX: %type <statement_> DefaultXMLNamespaceStatement */
 %type <expression_> PropertyIdentifier
 %type <attribute_> AttributeIdentifier
 /* XXX: %type <statement_> DefaultXMLNamespaceStatement */
 %type <expression_> PropertyIdentifier

-%type <expression_> XMLListInitialiser
-%type <expression_> XMLInitialiser
+%type <expression_> XMLListInitilizer
+%type <expression_> XMLInitilizer

 @end
 /* }}} */
 /* Token Priorities {{{ */
 @end
 /* }}} */
 /* Token Priorities {{{ */

-%nonassoc ""
-%left "++" "--" "{"
-

 %nonassoc "if"
 %nonassoc "else"
 %nonassoc "if"
 %nonassoc "else"

+
+%nonassoc ":"
+%nonassoc "!yield"

 /* }}} */
 
 %start Program
 %token MarkModule
 %token MarkScript
 /* }}} */
 
 %start Program
 %token MarkModule
 %token MarkScript

+%token MarkExpression

 
 %%
 
 Program
     : MarkScript Script
     | MarkModule Module
 
 %%
 
 Program
     : MarkScript Script
     | MarkModule Module

+    | MarkExpression Expression[expression] { driver.context_ = $expression; }

     ;
 
 /* Lexer State {{{ */
     ;
 
 /* Lexer State {{{ */


@@ -654,21 +790,23 @@ LexPopIn: { driver.in_.pop(); };
 
 LexPushReturnOn: { driver.return_.push(true); };
 LexPopReturn: { driver.return_.pop(); };
 
 LexPushReturnOn: { driver.return_.push(true); };
 LexPopReturn: { driver.return_.pop(); };

+Return: "return"[return] { if (!driver.return_.top()) CYERR(@return, "invalid return"); };

 
 LexPushSuperOn: { driver.super_.push(true); };
 LexPushSuperOff: { driver.super_.push(false); };
 LexPopSuper: { driver.super_.pop(); };
 
 LexPushSuperOn: { driver.super_.push(true); };
 LexPushSuperOff: { driver.super_.push(false); };
 LexPopSuper: { driver.super_.pop(); };

+Super: "super"[super] { if (!driver.super_.top()) CYERR(@super, "invalid super"); };

 
 LexPushYieldOn: { driver.yield_.push(true); };
 LexPushYieldOff: { driver.yield_.push(false); };
 LexPopYield: { driver.yield_.pop(); };
 
 
 LexPushYieldOn: { driver.yield_.push(true); };
 LexPushYieldOff: { driver.yield_.push(false); };
 LexPopYield: { driver.yield_.pop(); };
 

-LexSetRegExp
-    : { CYLEX(); if (yyla.type == yytranslate_(token::Slash)) { yyla.clear(); driver.SetRegEx(false); } else if (yyla.type == yytranslate_(token::SlashEqual)) { yyla.clear(); driver.SetRegEx(true); } }
+LexNewLineOrOpt
+    : { CYLEX(); if (driver.newline_) { CYHLD(@$, tk::NewLine); } }

     ;
 
     ;
 

-LexNewLine
-    : { if (!yyla.empty() && yyla.type_get() != yyeof_) CYERR(@$, "unexpected lookahead"); driver.next_ = true; }
+LexNewLineOrNot
+    : { CYLEX(); CYHLD(@$, driver.newline_ ? tk::NewLine : tk::__); }

     ;
 
 LexNoStar
     ;
 
 LexNoStar


@@ -676,7 +814,7 @@ LexNoStar
     ;
 
 LexNoBrace
     ;
 
 LexNoBrace

-    : { CYMAP(OpenBrace__, OpenBrace); CYMAP(OpenBrace__, OpenBrace_); }
+    : { CYMAP(OpenBrace_, OpenBrace); }

     ;
 
 LexNoClass
     ;
 
 LexNoClass


@@ -692,11 +830,6 @@ LexSetStatement
     ;
 /* }}} */
 /* Virtual Tokens {{{ */
     ;
 /* }}} */
 /* Virtual Tokens {{{ */

-BRACE
-    : "{"
-    | "\n{"
-    ;
-

 Var_
     : "var"
     ;
 Var_
     : "var"
     ;


@@ -704,31 +837,23 @@ Var_
 
 /* 11.6 Names and Keywords {{{ */
 IdentifierName
 
 /* 11.6 Names and Keywords {{{ */
 IdentifierName

-    : Word { $$ = $1; }
+    : Word[pass] { $$ = $pass; }

     | "for" { $$ = CYNew CYWord("for"); }
     | "in" { $$ = CYNew CYWord("in"); }
     | "for" { $$ = CYNew CYWord("for"); }
     | "in" { $$ = CYNew CYWord("in"); }

-    | "Infinity" { $$ = CYNew CYIdentifier("Infinity"); }

     | "instanceof" { $$ = CYNew CYWord("instanceof"); }
     ;
 
     | "instanceof" { $$ = CYNew CYWord("instanceof"); }
     ;
 

-NewLineOpt
-    : "\n"
-    |
-    ;
-
-Word
-    : Identifier { $$ = $1; }
-    | "auto" { $$ = CYNew CYWord("auto"); }
+WordNoUnary
+    : IdentifierNoOf[pass] { $$ = $pass; }

     | "break" { $$ = CYNew CYWord("break"); }
     | "case" { $$ = CYNew CYWord("case"); }
     | "catch" { $$ = CYNew CYWord("catch"); }
     | "break" { $$ = CYNew CYWord("break"); }
     | "case" { $$ = CYNew CYWord("case"); }
     | "catch" { $$ = CYNew CYWord("catch"); }

-    | "class" { $$ = CYNew CYWord("class"); }
+    | "class" LexOf { $$ = CYNew CYWord("class"); }

     | ";class" { $$ = CYNew CYWord("class"); }
     | "const" { $$ = CYNew CYWord("const"); }
     | "continue" { $$ = CYNew CYWord("continue"); }
     | "debugger" { $$ = CYNew CYWord("debugger"); }
     | "default" { $$ = CYNew CYWord("default"); }
     | ";class" { $$ = CYNew CYWord("class"); }
     | "const" { $$ = CYNew CYWord("const"); }
     | "continue" { $$ = CYNew CYWord("continue"); }
     | "debugger" { $$ = CYNew CYWord("debugger"); }
     | "default" { $$ = CYNew CYWord("default"); }

-    | "delete" LexSetRegExp { $$ = CYNew CYWord("delete"); }

     | "do" { $$ = CYNew CYWord("do"); }
     | "else" { $$ = CYNew CYWord("else"); }
     | "enum" { $$ = CYNew CYWord("enum"); }
     | "do" { $$ = CYNew CYWord("do"); }
     | "else" { $$ = CYNew CYWord("else"); }
     | "enum" { $$ = CYNew CYWord("enum"); }


@@ -736,36 +861,35 @@ Word
     | "extends" { $$ = CYNew CYWord("extends"); }
     | "false" { $$ = CYNew CYWord("false"); }
     | "finally" { $$ = CYNew CYWord("finally"); }
     | "extends" { $$ = CYNew CYWord("extends"); }
     | "false" { $$ = CYNew CYWord("false"); }
     | "finally" { $$ = CYNew CYWord("finally"); }

-    | "function" { $$ = CYNew CYWord("function"); }
+    | "function" LexOf { $$ = CYNew CYWord("function"); }

     | "if" { $$ = CYNew CYWord("if"); }
     | "import" { $$ = CYNew CYWord("import"); }
     | "!in" { $$ = CYNew CYWord("in"); }
     | "if" { $$ = CYNew CYWord("if"); }
     | "import" { $$ = CYNew CYWord("import"); }
     | "!in" { $$ = CYNew CYWord("in"); }

-    | "new" LexSetRegExp { $$ = CYNew CYWord("new"); }
+    | "!of" { $$ = CYNew CYWord("of"); }

     | "null" { $$ = CYNew CYWord("null"); }
     | "return" { $$ = CYNew CYWord("return"); }
     | "null" { $$ = CYNew CYWord("null"); }
     | "return" { $$ = CYNew CYWord("return"); }

-    | "!return" { $$ = CYNew CYWord("return"); }

     | "super" { $$ = CYNew CYWord("super"); }
     | "switch" { $$ = CYNew CYWord("switch"); }
     | "this" { $$ = CYNew CYWord("this"); }
     | "throw" { $$ = CYNew CYWord("throw"); }
     | "true" { $$ = CYNew CYWord("true"); }
     | "try" { $$ = CYNew CYWord("try"); }
     | "super" { $$ = CYNew CYWord("super"); }
     | "switch" { $$ = CYNew CYWord("switch"); }
     | "this" { $$ = CYNew CYWord("this"); }
     | "throw" { $$ = CYNew CYWord("throw"); }
     | "true" { $$ = CYNew CYWord("true"); }
     | "try" { $$ = CYNew CYWord("try"); }

-    | "typeof" LexSetRegExp { $$ = CYNew CYWord("typeof"); }

     | "var" { $$ = CYNew CYWord("var"); }
     | "var" { $$ = CYNew CYWord("var"); }

-    | "void" LexSetRegExp { $$ = CYNew CYWord("void"); }

     | "while" { $$ = CYNew CYWord("while"); }
     | "with" { $$ = CYNew CYWord("with"); }
     | "while" { $$ = CYNew CYWord("while"); }
     | "with" { $$ = CYNew CYWord("with"); }

-    | "yield" { $$ = CYNew CYIdentifier("yield"); }
-
-    | Yield LexSetRegExp NewLineOpt { $$ = CYNew CYIdentifier("yield"); }
+    ;

 
 

-    // XXX: should be Identifier
-    | "let" { $$ = CYNew CYIdentifier("let"); }
+Word
+    : WordNoUnary[pass] { $$ = $pass; }
+    | "delete" { $$ = CYNew CYWord("delete"); }
+    | "typeof" { $$ = CYNew CYWord("typeof"); }
+    | "void" { $$ = CYNew CYWord("void"); }
+    | "yield" { $$ = CYNew CYIdentifier("yield"); }

     ;
 
 @begin ObjectiveC
 WordOpt
     ;
 
 @begin ObjectiveC
 WordOpt

-    : Word { $$ = $1; }
+    : Word[pass] { $$ = $pass; }

     | { $$ = NULL; }
     ;
 @end
     | { $$ = NULL; }
     ;
 @end


@@ -781,20 +905,44 @@ BooleanLiteral
     | "false" { $$ = CYNew CYFalse(); }
     ;
 /* }}} */
     | "false" { $$ = CYNew CYFalse(); }
     ;
 /* }}} */

+/* 11.8.5 Regular Expression Literals {{{ */
+RegularExpressionSlash
+    : "/" { $$ = false; }
+    | "/=" { $$ = true; }
+    ;
+
+RegularExpressionLiteral
+    : RegularExpressionSlash[equals] { CYMPT(@$); driver.SetRegEx($equals); } RegularExpressionLiteral_[pass] { $$ = $pass; }
+    ;
+/* }}} */

 
 /* 11.9 Automatic Semicolon Insertion {{{ */
 StrictSemi
     : { driver.Warning(@$, "warning, automatic semi-colon insertion required"); }
     ;
 
 
 /* 11.9 Automatic Semicolon Insertion {{{ */
 StrictSemi
     : { driver.Warning(@$, "warning, automatic semi-colon insertion required"); }
     ;
 

+NewLineNot
+    : LexNewLineOrNot ""
+    ;
+
+NewLineOpt
+    : LexNewLineOrNot "\n"
+    | NewLineNot
+    ;
+

 TerminatorSoft
 TerminatorSoft

+    : LexNewLineOrNot "\n" StrictSemi
+    | NewLineNot LexOf Terminator
+    ;
+
+TerminatorHard

     : ";"
     : ";"

-    | "\n" StrictSemi
+    | error { if (yyla.type_get() != yyeof_) CYERR(@error, "required semi-colon"); else CYEOK(); } StrictSemi

     ;
 
 Terminator
     : ";"
     ;
 
 Terminator
     : ";"

-    | error { if (yyla.type_get() != yyeof_ && yyla.type != yytranslate_(token::CloseBrace) && !driver.newline_) { CYERR(@1, "required semi-colon"); } else { yyerrok; driver.errors_.pop_back(); } } StrictSemi
+    | error { if (yyla.type_get() != yyeof_ && yyla.type != yytranslate_(token::CloseBrace) && !driver.newline_) CYERR(@error, "required semi-colon"); else CYEOK(); } StrictSemi

     ;
 
 TerminatorOpt
     ;
 
 TerminatorOpt


@@ -805,28 +953,30 @@ TerminatorOpt
 
 /* 12.1 Identifiers {{{ */
 IdentifierReference
 
 /* 12.1 Identifiers {{{ */
 IdentifierReference

-    : Identifier { $$ = CYNew CYVariable($1); }
+    : Identifier[pass] { $$ = CYNew CYVariable($pass); }

     | "yield" { $$ = CYNew CYVariable(CYNew CYIdentifier("yield")); }
     ;
 
 BindingIdentifier
     | "yield" { $$ = CYNew CYVariable(CYNew CYIdentifier("yield")); }
     ;
 
 BindingIdentifier

-    : Identifier { $$ = $1; }
-    | "yield" { $$ = CYNew CYIdentifier("yield"); }
+    : LexOf IdentifierNoOf[pass] { $$ = $pass; }
+    | LexOf "!of" { $$ = CYNew CYIdentifier("of"); }
+    | LexOf "yield" { $$ = CYNew CYIdentifier("yield"); }

     ;
 
 BindingIdentifierOpt
     ;
 
 BindingIdentifierOpt

-    : BindingIdentifier { $$ = $1; }
-    | { $$ = NULL; }
+    : BindingIdentifier[pass] { $$ = $pass; }
+    | LexOf { $$ = NULL; }

     ;
 
 LabelIdentifier
     ;
 
 LabelIdentifier

-    : Identifier { $$ = $1; }
+    : Identifier[pass] { $$ = $pass; }

     | "yield" { $$ = CYNew CYIdentifier("yield"); }
     ;
 
     | "yield" { $$ = CYNew CYIdentifier("yield"); }
     ;
 

-IdentifierType
-    : Identifier_ { $$ = $1; }
+IdentifierTypeNoOf
+    : Identifier_[pass] { $$ = $pass; }

     | "abstract" { $$ = CYNew CYIdentifier("abstract"); }
     | "abstract" { $$ = CYNew CYIdentifier("abstract"); }

+    | "as" { $$ = CYNew CYIdentifier("as"); }

     | "await" { $$ = CYNew CYIdentifier("await"); }
     | "boolean" { $$ = CYNew CYIdentifier("boolean"); }
     | "byte" { $$ = CYNew CYIdentifier("byte"); }
     | "await" { $$ = CYNew CYIdentifier("await"); }
     | "boolean" { $$ = CYNew CYIdentifier("boolean"); }
     | "byte" { $$ = CYNew CYIdentifier("byte"); }


@@ -840,12 +990,15 @@ IdentifierType
     | "get" { $$ = CYNew CYIdentifier("get"); }
     | "goto" { $$ = CYNew CYIdentifier("goto"); }
     | "implements" { $$ = CYNew CYIdentifier("implements"); }
     | "get" { $$ = CYNew CYIdentifier("get"); }
     | "goto" { $$ = CYNew CYIdentifier("goto"); }
     | "implements" { $$ = CYNew CYIdentifier("implements"); }

+    | "Infinity" { $$ = CYNew CYIdentifier("Infinity"); }

     | "interface" { $$ = CYNew CYIdentifier("interface"); }
     | "interface" { $$ = CYNew CYIdentifier("interface"); }

+    | "let" { $$ = CYNew CYIdentifier("let"); }
+    | "!let" LexBind LexOf { $$ = CYNew CYIdentifier("let"); }

     | "native" { $$ = CYNew CYIdentifier("native"); }
     | "native" { $$ = CYNew CYIdentifier("native"); }

-    | "of" { $$ = CYNew CYIdentifier("of"); }

     | "package" { $$ = CYNew CYIdentifier("package"); }
     | "private" { $$ = CYNew CYIdentifier("private"); }
     | "protected" { $$ = CYNew CYIdentifier("protected"); }
     | "package" { $$ = CYNew CYIdentifier("package"); }
     | "private" { $$ = CYNew CYIdentifier("private"); }
     | "protected" { $$ = CYNew CYIdentifier("protected"); }

+    | "__proto__" { $$ = CYNew CYIdentifier("__proto__"); }

     | "prototype" { $$ = CYNew CYIdentifier("prototype"); }
     | "public" { $$ = CYNew CYIdentifier("public"); }
     | "set" { $$ = CYNew CYIdentifier("set"); }
     | "prototype" { $$ = CYNew CYIdentifier("prototype"); }
     | "public" { $$ = CYNew CYIdentifier("public"); }
     | "set" { $$ = CYNew CYIdentifier("set"); }


@@ -853,6 +1006,7 @@ IdentifierType
     | "target" { $$ = CYNew CYIdentifier("target"); }
     | "throws" { $$ = CYNew CYIdentifier("throws"); }
     | "transient" { $$ = CYNew CYIdentifier("transient"); }
     | "target" { $$ = CYNew CYIdentifier("target"); }
     | "throws" { $$ = CYNew CYIdentifier("throws"); }
     | "transient" { $$ = CYNew CYIdentifier("transient"); }

+    | "typeid" { $$ = CYNew CYIdentifier("typeid"); }

     | "undefined" { $$ = CYNew CYIdentifier("undefined"); }
 @begin ObjectiveC
     | "bool" { $$ = CYNew CYIdentifier("bool"); }
     | "undefined" { $$ = CYNew CYIdentifier("undefined"); }
 @begin ObjectiveC
     | "bool" { $$ = CYNew CYIdentifier("bool"); }


@@ -862,18 +1016,29 @@ IdentifierType
 @end
     ;
 
 @end
     ;
 

-Identifier
-    : IdentifierType
+IdentifierType
+    : IdentifierTypeNoOf[pass] { $$ = $pass; }
+    | "of" { $$ = CYNew CYIdentifier("of"); }
+    ;
+
+IdentifierTypeOpt
+    : IdentifierType[pass] { $$ = $pass; }
+    | { $$ = NULL; }
+    ;
+
+IdentifierNoOf
+    : IdentifierTypeNoOf

     | "char" { $$ = CYNew CYIdentifier("char"); }
     | "int" { $$ = CYNew CYIdentifier("int"); }
     | "char" { $$ = CYNew CYIdentifier("char"); }
     | "int" { $$ = CYNew CYIdentifier("int"); }

+    | "__int128" { $$ = CYNew CYIdentifier("__int128"); }

     | "long" { $$ = CYNew CYIdentifier("long"); }
     | "long" { $$ = CYNew CYIdentifier("long"); }

+    | "__restrict" { $$ = CYNew CYIdentifier("__restrict"); }
+    | "restrict" { $$ = CYNew CYIdentifier("restrict"); }

     | "short" { $$ = CYNew CYIdentifier("short"); }
     | "static" { $$ = CYNew CYIdentifier("static"); }
     | "volatile" { $$ = CYNew CYIdentifier("volatile"); }
 @begin C
     | "short" { $$ = CYNew CYIdentifier("short"); }
     | "static" { $$ = CYNew CYIdentifier("static"); }
     | "volatile" { $$ = CYNew CYIdentifier("volatile"); }
 @begin C

-    | "extern" { $$ = CYNew CYIdentifier("extern"); }

     | "signed" { $$ = CYNew CYIdentifier("signed"); }
     | "signed" { $$ = CYNew CYIdentifier("signed"); }

-    | "typedef" { $$ = CYNew CYIdentifier("typedef"); }

     | "unsigned" { $$ = CYNew CYIdentifier("unsigned"); }
 @end
 @begin ObjectiveC
     | "unsigned" { $$ = CYNew CYIdentifier("unsigned"); }
 @end
 @begin ObjectiveC


@@ -883,94 +1048,108 @@ Identifier
     | "YES" { $$ = CYNew CYIdentifier("YES"); }
 @end
     ;
     | "YES" { $$ = CYNew CYIdentifier("YES"); }
 @end
     ;

+
+Identifier
+    : IdentifierNoOf[pass] { $$ = $pass; }
+    | "of" { $$ = CYNew CYIdentifier("of"); }
+    | "!of" { $$ = CYNew CYIdentifier("of"); }
+    ;

 /* }}} */
 /* 12.2 Primary Expression {{{ */
 PrimaryExpression
     : "this" { $$ = CYNew CYThis(); }
 /* }}} */
 /* 12.2 Primary Expression {{{ */
 PrimaryExpression
     : "this" { $$ = CYNew CYThis(); }

-    | IdentifierReference { $$ = $1; }
-    | Literal { $$ = $1; }
-    | ArrayLiteral { $$ = $1; }
-    | ObjectLiteral { $$ = $1; }
-    | FunctionExpression { $$ = $1; }
-    | ClassExpression { $$ = $1; }
-    | GeneratorExpression { $$ = $1; }
-    | RegularExpressionLiteral { $$ = $1; }
-    | TemplateLiteral { $$ = $1; }
-    | CoverParenthesizedExpressionAndArrowParameterList { if ($1 == NULL) CYERR(@1, "invalid parenthetical"); $$ = $1; }
+    | IdentifierReference[pass] { $$ = $pass; }
+    | Literal[pass] { $$ = $pass; }
+    | ArrayLiteral[pass] { $$ = $pass; }
+    | ObjectLiteral[pass] { $$ = $pass; }
+    | FunctionExpression[pass] { $$ = $pass; }
+    | ClassExpression[pass] { $$ = $pass; }
+    | GeneratorExpression[pass] { $$ = $pass; }
+    | RegularExpressionLiteral[pass] { $$ = $pass; }
+    | TemplateLiteral[pass] { $$ = $pass; }
+    | CoverParenthesizedExpressionAndArrowParameterList[cover] { if ($cover == NULL) CYERR(@cover, "invalid parenthetical"); $$ = $cover; }

     | AutoComplete { driver.mode_ = CYDriver::AutoPrimary; YYACCEPT; }
     ;
 
 CoverParenthesizedExpressionAndArrowParameterList
     | AutoComplete { driver.mode_ = CYDriver::AutoPrimary; YYACCEPT; }
     ;
 
 CoverParenthesizedExpressionAndArrowParameterList

-    : "(" LexPushInOff Expression ")" LexPopIn { $$ = CYNew CYParenthetical($3); }
-    | "(" LexPushInOff LexSetRegExp ")" LexPopIn { $$ = NULL; }
-    | "(" LexPushInOff LexSetRegExp "..." BindingIdentifier ")" LexPopIn { CYNOT(@$); }
-    | "(" LexPushInOff Expression "," LexSetRegExp "..." BindingIdentifier ")" LexPopIn { CYNOT(@$); }
+    : "(" Expression[expression] ")" { $$ = CYNew CYParenthetical($expression); }
+    | "(" LexOf ")" { $$ = NULL; }
+    | "(" LexOf "..." BindingIdentifier ")" { CYNOT(@$); }
+    | "(" Expression "," LexOf "..." BindingIdentifier ")" { CYNOT(@$); }

     ;
 /* }}} */
 /* 12.2.4 Literals {{{ */
 Literal
     ;
 /* }}} */
 /* 12.2.4 Literals {{{ */
 Literal

-    : NullLiteral { $$ = $1; }
-    | BooleanLiteral { $$ = $1; }
-    | NumericLiteral { $$ = $1; }
-    | "Infinity" { $$ = CYNew CYNumber(std::numeric_limits<double>::infinity()); }
-    | StringLiteral { $$ = $1; }
+    : NullLiteral[pass] { $$ = $pass; }
+    | BooleanLiteral[pass] { $$ = $pass; }
+    | NumericLiteral[pass] { $$ = $pass; }
+    | StringLiteral[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 12.2.5 Array Initializer {{{ */
 ArrayLiteral
     ;
 /* }}} */
 /* 12.2.5 Array Initializer {{{ */
 ArrayLiteral

-    : "[" LexPushInOff ElementListOpt "]" LexPopIn { $$ = CYNew CYArray($3); }
+    : "[" ElementListOpt[elements] "]" { $$ = CYNew CYArray($elements); }
+    ;
+
+ArrayElement
+    : AssignmentExpression[value] { $$ = CYNew CYElementValue($value); }
+    | LexOf "..." AssignmentExpression[values] { $$ = CYNew CYElementSpread($values); }
+    ;
+
+ElementList_
+    : "," ElementListOpt[elements] { $$ = $elements; } 
+    | { $$ = NULL; }

     ;
 
 ElementList
     ;
 
 ElementList

-    : AssignmentExpressionOpt "," ElementListOpt { $$ = CYNew CYElementValue($1, $3); }
-    | LexSetRegExp "..." AssignmentExpression { $$ = CYNew CYElementSpread($3); }
-    | AssignmentExpression { $$ = CYNew CYElementValue($1, NULL); }
+    : ArrayElement[element] ElementList_[next] { $$ = $element; $$->SetNext($next); }
+    | LexOf "," ElementListOpt[next] { $$ = CYNew CYElementValue(NULL, $next); }

     ;
 
 ElementListOpt
     ;
 
 ElementListOpt

-    : ElementList { $$ = $1; }
-    | LexSetRegExp { $$ = NULL; }
+    : ElementList[pass] { $$ = $pass; }
+    | LexOf { $$ = NULL; }

     ;
 /* }}} */
 /* 12.2.6 Object Initializer {{{ */
 ObjectLiteral
     ;
 /* }}} */
 /* 12.2.6 Object Initializer {{{ */
 ObjectLiteral

-    : BRACE LexPushInOff PropertyDefinitionListOpt "}" LexPopIn { $$ = CYNew CYObject($3); }
+    : "{" PropertyDefinitionListOpt[properties] "}" { $$ = CYNew CYObject($properties); }

     ;
 
 PropertyDefinitionList_
     ;
 
 PropertyDefinitionList_

-    : "," PropertyDefinitionListOpt { $$ = $2; }
+    : "," PropertyDefinitionListOpt[properties] { $$ = $properties; }

     | { $$ = NULL; }
     ;
 
 PropertyDefinitionList
     | { $$ = NULL; }
     ;
 
 PropertyDefinitionList

-    : PropertyDefinition PropertyDefinitionList_ { $1->SetNext($2); $$ = $1; }
+    : PropertyDefinition[property] PropertyDefinitionList_[next] { $property->SetNext($next); $$ = $property; }

     ;
 
 PropertyDefinitionListOpt
     ;
 
 PropertyDefinitionListOpt

-    : LexSetRegExp PropertyDefinitionList { $$ = $2; }
-    | LexSetRegExp { $$ = NULL; }
+    : PropertyDefinitionList[properties] { $$ = $properties; }
+    | { $$ = NULL; }

     ;
 
 PropertyDefinition
     ;
 
 PropertyDefinition

-    : IdentifierReference { $$ = CYNew CYPropertyValue($1->name_, $1); }
-    | CoverInitializedName { CYNOT(@$); }
-    | PropertyName ":" AssignmentExpression { $$ = CYNew CYPropertyValue($1, $3); }
-    | MethodDefinition { $$ = $1; }
+    : IdentifierReference[value] { $$ = CYNew CYPropertyValue($value->name_, $value); }
+    | CoverInitializedName[name] { CYNOT(@$); }
+    | PropertyName[name] ":" AssignmentExpression[value] { $$ = CYNew CYPropertyValue($name, $value); }
+    | MethodDefinition[pass] { $$ = $pass; }

     ;
 
 PropertyName
     ;
 
 PropertyName

-    : LiteralPropertyName { $$ = $1; }
-    | ComputedPropertyName { $$ = $1; }
+    : LiteralPropertyName[pass] { $$ = $pass; }
+    | ComputedPropertyName[pass] { $$ = $pass; }

     ;
 
 LiteralPropertyName
     ;
 
 LiteralPropertyName

-    : IdentifierName { $$ = $1; }
-    | StringLiteral { $$ = $1; }
-    | NumericLiteral { $$ = $1; }
+    : IdentifierName[pass] { $$ = $pass; }
+    | StringLiteral[pass] { $$ = $pass; }
+    | NumericLiteral[pass] { $$ = $pass; }

     ;
 
 ComputedPropertyName
     ;
 
 ComputedPropertyName

-    : "[" AssignmentExpression "]" { $$ = CYNew CYComputed($2); }
+    : "[" AssignmentExpression[expression] "]" { $$ = CYNew CYComputed($expression); }

     ;
 
 CoverInitializedName
     ;
 
 CoverInitializedName


@@ -978,45 +1157,45 @@ CoverInitializedName
     ;
 
 Initializer
     ;
 
 Initializer

-    : "=" AssignmentExpression { $$ = $2; }
+    : "=" AssignmentExpression[initializer] { $$ = $initializer; }

     ;
 
 InitializerOpt
     ;
 
 InitializerOpt

-    : Initializer { $$ = $1; }
+    : Initializer[pass] { $$ = $pass; }

     | { $$ = NULL; }
     ;
 /* }}} */
 /* 12.2.9 Template Literals {{{ */
 TemplateLiteral
     | { $$ = NULL; }
     ;
 /* }}} */
 /* 12.2.9 Template Literals {{{ */
 TemplateLiteral

-    : NoSubstitutionTemplate { $$ = CYNew CYTemplate($1, NULL); }
-    | TemplateHead TemplateSpans { $$ = CYNew CYTemplate($1, $2); }
+    : NoSubstitutionTemplate[string] { $$ = CYNew CYTemplate($string, NULL); }
+    | TemplateHead[string] LexPushInOff TemplateSpans[spans] { $$ = CYNew CYTemplate($string, $spans); }

     ;
 
 TemplateSpans
     ;
 
 TemplateSpans

-    : Expression TemplateMiddle TemplateSpans { $$ = CYNew CYSpan($1, $2, $3); }
-    | Expression TemplateTail { $$ = CYNew CYSpan($1, $2, NULL); }
+    : Expression[value] TemplateMiddle[string] TemplateSpans[spans] { $$ = CYNew CYSpan($value, $string, $spans); }
+    | Expression[value] TemplateTail[string] LexPopIn { $$ = CYNew CYSpan($value, $string, NULL); }

     ;
 /* }}} */
 
 /* 12.3 Left-Hand-Side Expressions {{{ */
 MemberAccess
     ;
 /* }}} */
 
 /* 12.3 Left-Hand-Side Expressions {{{ */
 MemberAccess

-    : "[" LexPushInOff Expression "]" LexPopIn { $$ = CYNew CYDirectMember(NULL, $3); }
-    | "." IdentifierName { $$ = CYNew CYDirectMember(NULL, CYNew CYString($2)); }
+    : "[" Expression[property] "]" { $$ = CYNew CYDirectMember(NULL, $property); }
+    | "." IdentifierName[property] { $$ = CYNew CYDirectMember(NULL, CYNew CYString($property)); }

     | "." AutoComplete { driver.mode_ = CYDriver::AutoDirect; YYACCEPT; }
     | TemplateLiteral { CYNOT(@$); }
     ;
 
 MemberExpression
     | "." AutoComplete { driver.mode_ = CYDriver::AutoDirect; YYACCEPT; }
     | TemplateLiteral { CYNOT(@$); }
     ;
 
 MemberExpression

-    : LexSetRegExp PrimaryExpression { $$ = $2; }
-    | MemberExpression { driver.context_ = $1; } MemberAccess { $3->SetLeft($1); $$ = $3; }
-    | SuperProperty { $$ = $1; }
+    : PrimaryExpression[pass] { $$ = $pass; }
+    | MemberExpression[object] { driver.context_ = $object; } MemberAccess[member] { $member->SetLeft($object); $$ = $member; }
+    | SuperProperty[pass] { $$ = $pass; }

     | MetaProperty { CYNOT(@$); }
     | MetaProperty { CYNOT(@$); }

-    | LexSetRegExp "new" MemberExpression Arguments { $$ = CYNew cy::Syntax::New($3, $4); }
+    | "new" MemberExpression[constructor] Arguments[arguments] { $$ = CYNew cy::Syntax::New($constructor, $arguments); }

     ;
 
 SuperProperty
     ;
 
 SuperProperty

-    : LexSetRegExp "super" { if (!driver.super_.top()) CYERR(@2, "invalid super"); } "[" Expression "]" { $$ = CYNew CYSuperAccess($5); }
-    | LexSetRegExp "super" { if (!driver.super_.top()) CYERR(@2, "invalid super"); } "." IdentifierName { $$ = CYNew CYSuperAccess(CYNew CYString($5)); }
+    : Super "[" Expression[property] "]" { $$ = CYNew CYSuperAccess($property); }
+    | Super "." IdentifierName[property] { $$ = CYNew CYSuperAccess(CYNew CYString($property)); }

     ;
 
 MetaProperty
     ;
 
 MetaProperty


@@ -1024,332 +1203,338 @@ MetaProperty
     ;
 
 NewTarget
     ;
 
 NewTarget

-    : LexSetRegExp "new" LexSetRegExp "." "target"
+    : "new" "." "target"

     ;
 
 NewExpression
     ;
 
 NewExpression

-    : MemberExpression { $$ = $1; }
-    | LexSetRegExp "new" NewExpression { $$ = CYNew cy::Syntax::New($3, NULL); }
+    : MemberExpression[pass] { $$ = $pass; }
+    | "new" NewExpression[expression] { $$ = CYNew cy::Syntax::New($expression, NULL); }

     ;
 
 CallExpression_
     ;
 
 CallExpression_

-    : MemberExpression { $$ = $1; }
-    | CallExpression { $$ = $1; }
+    : MemberExpression[pass] { $$ = $pass; }
+    | CallExpression[pass] { $$ = $pass; }

     ;
 
 CallExpression
     ;
 
 CallExpression

-    : CallExpression_ Arguments { if (!$1->Eval()) $$ = CYNew CYCall($1, $2); else $$ = CYNew CYEval($2); }
-    | SuperCall { $$ = $1; }
-    | CallExpression { driver.context_ = $1; } MemberAccess { $3->SetLeft($1); $$ = $3; }
+    : CallExpression_[function] Arguments[arguments] { if (!$function->Eval()) $$ = CYNew CYCall($function, $arguments); else $$ = CYNew CYEval($arguments); }
+    | SuperCall[pass] { $$ = $pass; }
+    | CallExpression[object] { driver.context_ = $object; } MemberAccess[member] { $member->SetLeft($object); $$ = $member; }

     ;
 
 SuperCall
     ;
 
 SuperCall

-    : LexSetRegExp "super" { if (!driver.super_.top()) CYERR(@2, "invalid super"); } Arguments { $$ = CYNew CYSuperCall($4); }
+    : Super Arguments[arguments] { $$ = CYNew CYSuperCall($arguments); }

     ;
 
 Arguments
     ;
 
 Arguments

-    : "(" LexPushInOff ArgumentListOpt ")" LexPopIn { $$ = $3; }
+    : "(" ArgumentListOpt[arguments] ")" { $$ = $arguments; }

     ;
 
 ArgumentList_
     ;
 
 ArgumentList_

-    : "," ArgumentList { $$ = $2; }
+    : "," ArgumentList[arguments] { $$ = $arguments; }

     | { $$ = NULL; }
     ;
 
 ArgumentList
     | { $$ = NULL; }
     ;
 
 ArgumentList

-    : AssignmentExpression ArgumentList_ { $$ = CYNew CYArgument(NULL, $1, $2); }
-    | LexSetRegExp "..." AssignmentExpression { CYNOT(@$); }
+    : AssignmentExpression[value] ArgumentList_[next] { $$ = CYNew CYArgument(NULL, $value, $next); }
+    | LexOf "..." AssignmentExpression { CYNOT(@$); }

     ;
 
 ArgumentListOpt
     ;
 
 ArgumentListOpt

-    : ArgumentList { $$ = $1; }
-    | LexSetRegExp { $$ = NULL; }
+    : ArgumentList[pass] { $$ = $pass; }
+    | LexOf { $$ = NULL; }
+    ;
+
+AccessExpression
+    : NewExpression[pass] { $$ = $pass; }
+    | CallExpression[pass] { $$ = $pass; }

     ;
 
 LeftHandSideExpression
     ;
 
 LeftHandSideExpression

-    : NewExpression { $$ = $1; }
-    | CallExpression { $$ = $1; }
+    : BracedExpression[pass] { $$ = $pass; }
+    | IndirectExpression[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 12.4 Postfix Expressions {{{ */
 PostfixExpression
     ;
 /* }}} */
 /* 12.4 Postfix Expressions {{{ */
 PostfixExpression

-    : %prec "" LeftHandSideExpression { $$ = $1; }
-    | LeftHandSideExpression "++" { $$ = CYNew CYPostIncrement($1); }
-    | LeftHandSideExpression "--" { $$ = CYNew CYPostDecrement($1); }
+    : BracedExpression[pass] { $$ = $pass; }
+    | AccessExpression[lhs] LexNewLineOrOpt "++" { $$ = CYNew CYPostIncrement($lhs); }
+    | AccessExpression[lhs] LexNewLineOrOpt "--" { $$ = CYNew CYPostDecrement($lhs); }

     ;
 /* }}} */
 /* 12.5 Unary Operators {{{ */
 UnaryExpression_
     ;
 /* }}} */
 /* 12.5 Unary Operators {{{ */
 UnaryExpression_

-    : "delete" UnaryExpression { $$ = CYNew CYDelete($2); }
-    | "void" UnaryExpression { $$ = CYNew CYVoid($2); }
-    | "typeof" UnaryExpression { $$ = CYNew CYTypeOf($2); }
-    | "++" UnaryExpression { $$ = CYNew CYPreIncrement($2); }
-    | "\n++" UnaryExpression { $$ = CYNew CYPreIncrement($2); }
-    | "--" UnaryExpression { $$ = CYNew CYPreDecrement($2); }
-    | "\n--" UnaryExpression { $$ = CYNew CYPreDecrement($2); }
-    | "+" UnaryExpression { $$ = CYNew CYAffirm($2); }
-    | "-" UnaryExpression { $$ = CYNew CYNegate($2); }
-    | "~" UnaryExpression { $$ = CYNew CYBitwiseNot($2); }
-    | "!" UnaryExpression { $$ = CYNew CYLogicalNot($2); }
+    : "delete" UnaryExpression[rhs] { $$ = CYNew CYDelete($rhs); }
+    | "void" UnaryExpression[rhs] { $$ = CYNew CYVoid($rhs); }
+    | "typeof" UnaryExpression[rhs] { $$ = CYNew CYTypeOf($rhs); }
+    | "++" UnaryExpression[rhs] { $$ = CYNew CYPreIncrement($rhs); }
+    | "--" UnaryExpression[rhs] { $$ = CYNew CYPreDecrement($rhs); }
+    | "+" UnaryExpression[rhs] { $$ = CYNew CYAffirm($rhs); }
+    | "-" UnaryExpression[rhs] { $$ = CYNew CYNegate($rhs); }
+    | "~" UnaryExpression[rhs] { $$ = CYNew CYBitwiseNot($rhs); }
+    | "!" UnaryExpression[rhs] { $$ = CYNew CYLogicalNot($rhs); }

     ;
 
 UnaryExpression
     ;
 
 UnaryExpression

-    : %prec "" PostfixExpression { $$ = $1; }
-    | LexSetRegExp UnaryExpression_ { $$ = $2; }
+    : PostfixExpression[expression] { $$ = $expression; }
+    | UnaryExpression_[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 12.6 Multiplicative Operators {{{ */
 MultiplicativeExpression
     ;
 /* }}} */
 /* 12.6 Multiplicative Operators {{{ */
 MultiplicativeExpression

-    : UnaryExpression { $$ = $1; }
-    | MultiplicativeExpression "*" UnaryExpression { $$ = CYNew CYMultiply($1, $3); }
-    | MultiplicativeExpression "/" UnaryExpression { $$ = CYNew CYDivide($1, $3); }
-    | MultiplicativeExpression "%" UnaryExpression { $$ = CYNew CYModulus($1, $3); }
+    : UnaryExpression[pass] { $$ = $pass; }
+    | MultiplicativeExpression[lhs] "*" UnaryExpression[rhs] { $$ = CYNew CYMultiply($lhs, $rhs); }
+    | MultiplicativeExpression[lhs] "/" UnaryExpression[rhs] { $$ = CYNew CYDivide($lhs, $rhs); }
+    | MultiplicativeExpression[lhs] "%" UnaryExpression[rhs] { $$ = CYNew CYModulus($lhs, $rhs); }

     ;
 /* }}} */
 /* 12.7 Additive Operators {{{ */
 AdditiveExpression
     ;
 /* }}} */
 /* 12.7 Additive Operators {{{ */
 AdditiveExpression

-    : MultiplicativeExpression { $$ = $1; }
-    | AdditiveExpression "+" MultiplicativeExpression { $$ = CYNew CYAdd($1, $3); }
-    | AdditiveExpression "-" MultiplicativeExpression { $$ = CYNew CYSubtract($1, $3); }
+    : MultiplicativeExpression[pass] { $$ = $pass; }
+    | AdditiveExpression[lhs] "+" MultiplicativeExpression[rhs] { $$ = CYNew CYAdd($lhs, $rhs); }
+    | AdditiveExpression[lhs] "-" MultiplicativeExpression[rhs] { $$ = CYNew CYSubtract($lhs, $rhs); }

     ;
 /* }}} */
 /* 12.8 Bitwise Shift Operators {{{ */
 ShiftExpression
     ;
 /* }}} */
 /* 12.8 Bitwise Shift Operators {{{ */
 ShiftExpression

-    : AdditiveExpression { $$ = $1; }
-    | ShiftExpression "<<" AdditiveExpression { $$ = CYNew CYShiftLeft($1, $3); }
-    | ShiftExpression ">>" AdditiveExpression { $$ = CYNew CYShiftRightSigned($1, $3); }
-    | ShiftExpression ">>>" AdditiveExpression { $$ = CYNew CYShiftRightUnsigned($1, $3); }
+    : AdditiveExpression[pass] { $$ = $pass; }
+    | ShiftExpression[lhs] "<<" AdditiveExpression[rhs] { $$ = CYNew CYShiftLeft($lhs, $rhs); }
+    | ShiftExpression[lhs] ">>" AdditiveExpression[rhs] { $$ = CYNew CYShiftRightSigned($lhs, $rhs); }
+    | ShiftExpression[lhs] ">>>" AdditiveExpression[rhs] { $$ = CYNew CYShiftRightUnsigned($lhs, $rhs); }

     ;
 /* }}} */
 /* 12.9 Relational Operators {{{ */
 RelationalExpression
     ;
 /* }}} */
 /* 12.9 Relational Operators {{{ */
 RelationalExpression

-    : ShiftExpression { $$ = $1; }
-    | RelationalExpression "<" ShiftExpression { $$ = CYNew CYLess($1, $3); }
-    | RelationalExpression ">" ShiftExpression { $$ = CYNew CYGreater($1, $3); }
-    | RelationalExpression "<=" ShiftExpression { $$ = CYNew CYLessOrEqual($1, $3); }
-    | RelationalExpression ">=" ShiftExpression { $$ = CYNew CYGreaterOrEqual($1, $3); }
-    | RelationalExpression "instanceof" ShiftExpression { $$ = CYNew CYInstanceOf($1, $3); }
-    | RelationalExpression "in" ShiftExpression { $$ = CYNew CYIn($1, $3); }
+    : ShiftExpression[pass] { $$ = $pass; }
+    | RelationalExpression[lhs] "<" ShiftExpression[rhs] { $$ = CYNew CYLess($lhs, $rhs); }
+    | RelationalExpression[lhs] ">" ShiftExpression[rhs] { $$ = CYNew CYGreater($lhs, $rhs); }
+    | RelationalExpression[lhs] "<=" ShiftExpression[rhs] { $$ = CYNew CYLessOrEqual($lhs, $rhs); }
+    | RelationalExpression[lhs] ">=" ShiftExpression[rhs] { $$ = CYNew CYGreaterOrEqual($lhs, $rhs); }
+    | RelationalExpression[lhs] "instanceof" ShiftExpression[rhs] { $$ = CYNew CYInstanceOf($lhs, $rhs); }
+    | RelationalExpression[lhs] "in" ShiftExpression[rhs] { $$ = CYNew CYIn($lhs, $rhs); }

     ;
 /* }}} */
 /* 12.10 Equality Operators {{{ */
 EqualityExpression
     ;
 /* }}} */
 /* 12.10 Equality Operators {{{ */
 EqualityExpression

-    : RelationalExpression { $$ = $1; }
-    | EqualityExpression "==" RelationalExpression { $$ = CYNew CYEqual($1, $3); }
-    | EqualityExpression "!=" RelationalExpression { $$ = CYNew CYNotEqual($1, $3); }
-    | EqualityExpression "===" RelationalExpression { $$ = CYNew CYIdentical($1, $3); }
-    | EqualityExpression "!==" RelationalExpression { $$ = CYNew CYNotIdentical($1, $3); }
+    : RelationalExpression[pass] { $$ = $pass; }
+    | EqualityExpression[lhs] "==" RelationalExpression[rhs] { $$ = CYNew CYEqual($lhs, $rhs); }
+    | EqualityExpression[lhs] "!=" RelationalExpression[rhs] { $$ = CYNew CYNotEqual($lhs, $rhs); }
+    | EqualityExpression[lhs] "===" RelationalExpression[rhs] { $$ = CYNew CYIdentical($lhs, $rhs); }
+    | EqualityExpression[lhs] "!==" RelationalExpression[rhs] { $$ = CYNew CYNotIdentical($lhs, $rhs); }

     ;
 /* }}} */
 /* 12.11 Binary Bitwise Operators {{{ */
 BitwiseANDExpression
     ;
 /* }}} */
 /* 12.11 Binary Bitwise Operators {{{ */
 BitwiseANDExpression

-    : EqualityExpression { $$ = $1; }
-    | BitwiseANDExpression "&" EqualityExpression { $$ = CYNew CYBitwiseAnd($1, $3); }
+    : EqualityExpression[pass] { $$ = $pass; }
+    | BitwiseANDExpression[lhs] "&" EqualityExpression[rhs] { $$ = CYNew CYBitwiseAnd($lhs, $rhs); }

     ;
 
 BitwiseXORExpression
     ;
 
 BitwiseXORExpression

-    : BitwiseANDExpression { $$ = $1; }
-    | BitwiseXORExpression "^" BitwiseANDExpression { $$ = CYNew CYBitwiseXOr($1, $3); }
+    : BitwiseANDExpression[pass] { $$ = $pass; }
+    | BitwiseXORExpression[lhs] "^" BitwiseANDExpression[rhs] { $$ = CYNew CYBitwiseXOr($lhs, $rhs); }

     ;
 
 BitwiseORExpression
     ;
 
 BitwiseORExpression

-    : BitwiseXORExpression { $$ = $1; }
-    | BitwiseORExpression "|" BitwiseXORExpression { $$ = CYNew CYBitwiseOr($1, $3); }
+    : BitwiseXORExpression[pass] { $$ = $pass; }
+    | BitwiseORExpression[lhs] "|" BitwiseXORExpression[rhs] { $$ = CYNew CYBitwiseOr($lhs, $rhs); }

     ;
 /* }}} */
 /* 12.12 Binary Logical Operators {{{ */
 LogicalANDExpression
     ;
 /* }}} */
 /* 12.12 Binary Logical Operators {{{ */
 LogicalANDExpression

-    : BitwiseORExpression { $$ = $1; }
-    | LogicalANDExpression "&&" BitwiseORExpression { $$ = CYNew CYLogicalAnd($1, $3); }
+    : BitwiseORExpression[pass] { $$ = $pass; }
+    | LogicalANDExpression[lhs] "&&" BitwiseORExpression[rhs] { $$ = CYNew CYLogicalAnd($lhs, $rhs); }

     ;
 
 LogicalORExpression
     ;
 
 LogicalORExpression

-    : LogicalANDExpression { $$ = $1; }
-    | LogicalORExpression "||" LogicalANDExpression { $$ = CYNew CYLogicalOr($1, $3); }
+    : LogicalANDExpression[pass] { $$ = $pass; }
+    | LogicalORExpression[lhs] "||" LogicalANDExpression[rhs] { $$ = CYNew CYLogicalOr($lhs, $rhs); }

     ;
 /* }}} */
 /* 12.13 Conditional Operator ( ? : ) {{{ */
 @begin ObjectiveC
 ConditionalExpressionClassic
     ;
 /* }}} */
 /* 12.13 Conditional Operator ( ? : ) {{{ */
 @begin ObjectiveC
 ConditionalExpressionClassic

-    : LogicalORExpression { $$ = $1; }
-    | LogicalORExpression "?" LexPushInOff AssignmentExpression ":" LexPopIn AssignmentExpressionClassic { $$ = CYNew CYCondition($1, $4, $7); }
+    : LogicalORExpression[pass] { $$ = $pass; }
+    | LogicalORExpression[test] "?" LexPushInOff AssignmentExpression[true] ":" LexPopIn AssignmentExpressionClassic[false] { $$ = CYNew CYCondition($test, $true, $false); }

     ;
 @end
 
 ConditionalExpression
     ;
 @end
 
 ConditionalExpression

-    : LogicalORExpression { $$ = $1; }
-    | LogicalORExpression "?" LexPushInOff AssignmentExpression ":" LexPopIn AssignmentExpression { $$ = CYNew CYCondition($1, $4, $7); }
+    : LogicalORExpression[pass] { $$ = $pass; }
+    | LogicalORExpression[test] "?" LexPushInOff AssignmentExpression[true] ":" LexPopIn AssignmentExpression[false] { $$ = CYNew CYCondition($test, $true, $false); }

     ;
 /* }}} */
 /* 12.14 Assignment Operators {{{ */
 LeftHandSideAssignment
     ;
 /* }}} */
 /* 12.14 Assignment Operators {{{ */
 LeftHandSideAssignment

-    : LeftHandSideExpression "=" { $$ = CYNew CYAssign($1, NULL); }
-    | LeftHandSideExpression "*=" { $$ = CYNew CYMultiplyAssign($1, NULL); }
-    | LeftHandSideExpression "/=" { $$ = CYNew CYDivideAssign($1, NULL); }
-    | LeftHandSideExpression "%=" { $$ = CYNew CYModulusAssign($1, NULL); }
-    | LeftHandSideExpression "+=" { $$ = CYNew CYAddAssign($1, NULL); }
-    | LeftHandSideExpression "-=" { $$ = CYNew CYSubtractAssign($1, NULL); }
-    | LeftHandSideExpression "<<=" { $$ = CYNew CYShiftLeftAssign($1, NULL); }
-    | LeftHandSideExpression ">>=" { $$ = CYNew CYShiftRightSignedAssign($1, NULL); }
-    | LeftHandSideExpression ">>>=" { $$ = CYNew CYShiftRightUnsignedAssign($1, NULL); }
-    | LeftHandSideExpression "&=" { $$ = CYNew CYBitwiseAndAssign($1, NULL); }
-    | LeftHandSideExpression "^=" { $$ = CYNew CYBitwiseXOrAssign($1, NULL); }
-    | LeftHandSideExpression "|=" { $$ = CYNew CYBitwiseOrAssign($1, NULL); }
+    : LeftHandSideExpression[lhs] "=" { $$ = CYNew CYAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "*=" { $$ = CYNew CYMultiplyAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "/=" { $$ = CYNew CYDivideAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "%=" { $$ = CYNew CYModulusAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "+=" { $$ = CYNew CYAddAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "-=" { $$ = CYNew CYSubtractAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "<<=" { $$ = CYNew CYShiftLeftAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] ">>=" { $$ = CYNew CYShiftRightSignedAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] ">>>=" { $$ = CYNew CYShiftRightUnsignedAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "&=" { $$ = CYNew CYBitwiseAndAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "^=" { $$ = CYNew CYBitwiseXOrAssign($lhs, NULL); }
+    | LeftHandSideExpression[lhs] "|=" { $$ = CYNew CYBitwiseOrAssign($lhs, NULL); }

     ;
 
 @begin ObjectiveC
 AssignmentExpressionClassic
     ;
 
 @begin ObjectiveC
 AssignmentExpressionClassic

-    : ConditionalExpressionClassic { $$ = $1; }
-    | LeftHandSideAssignment AssignmentExpressionClassic { $1->SetRight($2); $$ = $1; }
+    : LexOf ConditionalExpressionClassic[pass] { $$ = $pass; }
+    | LexOf LeftHandSideAssignment[assignment] AssignmentExpressionClassic[rhs] { $assignment->SetRight($rhs); $$ = $assignment; }

     ;
 @end
 
 AssignmentExpression
     ;
 @end
 
 AssignmentExpression

-    : ConditionalExpression { $$ = $1; }
-    | LexSetRegExp YieldExpression { $$ = $2; }
-    | ArrowFunction { $$ = $1; }
-    | LeftHandSideAssignment AssignmentExpression { $1->SetRight($2); $$ = $1; }
-    ;
-
-AssignmentExpressionOpt
-    : AssignmentExpression { $$ = $1; }
-    | LexSetRegExp { $$ = NULL; }
+    : LexOf ConditionalExpression[pass] { $$ = $pass; }
+    | LexOf YieldExpression[pass] { $$ = $pass; }
+    | ArrowFunction[pass] { $$ = $pass; }
+    | LexOf LeftHandSideAssignment[assignment] AssignmentExpression[rhs] { $assignment->SetRight($rhs); $$ = $assignment; }

     ;
 /* }}} */
 /* 12.15 Comma Operator ( , ) {{{ */
 Expression
     ;
 /* }}} */
 /* 12.15 Comma Operator ( , ) {{{ */
 Expression

-    : AssignmentExpression { $$ = $1; }
-    | Expression "," AssignmentExpression { $$ = CYNew CYCompound($1, $3); }
+    : AssignmentExpression[pass] { $$ = $pass; }
+    | Expression[expression] "," AssignmentExpression[next] { $$ = CYNew CYCompound($expression, $next); }

     ;
 
 ExpressionOpt
     ;
 
 ExpressionOpt

-    : Expression { $$ = $1; }
-    | LexSetRegExp { $$ = NULL; }
+    : Expression[pass] { $$ = $pass; }
+    | LexOf { $$ = NULL; }

     ;
 /* }}} */
 
 /* 13 Statements and Declarations {{{ */
 Statement__
     ;
 /* }}} */
 
 /* 13 Statements and Declarations {{{ */
 Statement__

-    : BlockStatement { $$ = $1; }
-    | VariableStatement { $$ = $1; }
-    | EmptyStatement { $$ = $1; }
-    | IfStatement { $$ = $1; }
-    | BreakableStatement { $$ = $1; }
-    | ContinueStatement { $$ = $1; }
-    | BreakStatement { $$ = $1; }
-    | ReturnStatement { $$ = $1; }
-    | WithStatement { $$ = $1; }
-    | LabelledStatement { $$ = $1; }
-    | ThrowStatement { $$ = $1; }
-    | TryStatement { $$ = $1; }
-    | DebuggerStatement { $$ = $1; }
+    : BlockStatement[pass] { $$ = $pass; }
+    | VariableStatement[pass] { $$ = $pass; }
+    | EmptyStatement[pass] { $$ = $pass; }
+    | IfStatement[pass] { $$ = $pass; }
+    | BreakableStatement[pass] { $$ = $pass; }
+    | ContinueStatement[pass] { $$ = $pass; }
+    | BreakStatement[pass] { $$ = $pass; }
+    | ReturnStatement[pass] { $$ = $pass; }
+    | WithStatement[pass] { $$ = $pass; }
+    | LabelledStatement[pass] { $$ = $pass; }
+    | ThrowStatement[pass] { $$ = $pass; }
+    | TryStatement[pass] { $$ = $pass; }
+    | DebuggerStatement[pass] { $$ = $pass; }

     ;
 
 Statement_
     ;
 
 Statement_

-    : LexSetRegExp Statement__ { $$ = $2; }
-    | ExpressionStatement { $$ = $1; }
+    : LexOf Statement__[pass] { $$ = $pass; }
+    | ExpressionStatement[pass] { $$ = $pass; }

     ;
 
 Statement
     ;
 
 Statement

-    : LexSetStatement Statement_ { $$ = $2; }
-    ;
-
-Declaration__
-    : HoistableDeclaration { $$ = $1; }
-    | ClassDeclaration { $$ = $1; }
-    | LexicalDeclaration { $$ = $1; }
+    : LexSetStatement LexLet Statement_[pass] { $$ = $pass; }

     ;
 
 Declaration_
     ;
 
 Declaration_

-    : LexSetRegExp Declaration__ { $$ = $2; }
+    : HoistableDeclaration[pass] { $$ = $pass; }
+    | ClassDeclaration[pass] { $$ = $pass; }

     ;
 
 Declaration
     ;
 
 Declaration

-    : LexSetStatement Declaration_ { $$ = $2; }
+    : LexSetStatement LexLet LexOf Declaration_[pass] { $$ = $pass; }
+    | LexSetStatement LexicalDeclaration[pass] { $$ = $pass; }

     ;
 
 HoistableDeclaration
     ;
 
 HoistableDeclaration

-    : FunctionDeclaration { $$ = $1; }
-    | GeneratorDeclaration { $$ = $1; }
+    : FunctionDeclaration[pass] { $$ = $pass; }
+    | GeneratorDeclaration[pass] { $$ = $pass; }

     ;
 
 BreakableStatement
     ;
 
 BreakableStatement

-    : IterationStatement { $$ = $1; }
-    | SwitchStatement { $$ = $1; }
+    : IterationStatement[pass] { $$ = $pass; }
+    | SwitchStatement[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 13.2 Block {{{ */
 BlockStatement
     ;
 /* }}} */
 /* 13.2 Block {{{ */
 BlockStatement

-    : ";{" StatementListOpt "}" { $$ = CYNew CYBlock($2); }
+    : ";{" StatementListOpt[code] "}" { $$ = CYNew CYBlock($code); }

     ;
 
 Block
     ;
 
 Block

-    : BRACE StatementListOpt "}" { $$ = $2; }
+    : "{" StatementListOpt[code] "}" { $$ = $code; }

     ;
 
 StatementList
     ;
 
 StatementList

-    : StatementListItem StatementListOpt { $1->SetNext($2); $$ = $1; }
+    : StatementListItem[statement] StatementListOpt[next] { $$ = $statement; CYSetLast($$) = $next; }

     ;
 
 StatementListOpt
     ;
 
 StatementListOpt

-    : StatementList { $$ = $1; }
-    | LexSetStatement LexSetRegExp { $$ = NULL; }
+    : StatementList[pass] { $$ = $pass; }
+    | LexSetStatement LexLet LexOf { $$ = NULL; }

     ;
 
 StatementListItem
     ;
 
 StatementListItem

-    : Statement { $$ = $1; }
-    | Declaration { $$ = $1; }
+    : Statement[pass] { $$ = $pass; }
+    | Declaration[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 13.3 Let and Const Declarations {{{ */
 LexicalDeclaration_
     ;
 /* }}} */
 /* 13.3 Let and Const Declarations {{{ */
 LexicalDeclaration_

-    : LetOrConst BindingList { $$ = CYNew CYLet($1, $2); }
+    : LetOrConst[constant] BindingList[bindings] { $$ = CYNew CYLexical($constant, $bindings); }

     ;
 
 LexicalDeclaration
     ;
 
 LexicalDeclaration

-    : LexicalDeclaration_ Terminator { $$ = $1; }
+    : LexicalDeclaration_[statement] Terminator { $$ = $statement; }
+    ;
+
+LexLet
+    : { CYMAP(_let__, _let_); }
+    ;
+
+LexOf
+    : { CYMAP(_of__, _of_); }
+    ;
+
+LexBind
+    : { CYMAP(OpenBrace_let, OpenBrace); CYMAP(OpenBracket_let, OpenBracket); }

     ;
 
 LetOrConst
     ;
 
 LetOrConst

-    : "let" { $$ = false; }
-    | "const" { $$ = true; }
+    : LexLet LexOf "!let" LexBind LexOf { $$ = false; }
+    | LexLet LexOf "const" { $$ = true; }

     ;
 
 BindingList_
     ;
 
 BindingList_

-    : "," BindingList { $$ = $2; }
+    : "," LexBind BindingList[bindings] { $$ = $bindings; }

     | { $$ = NULL; }
     ;
 
 BindingList
     | { $$ = NULL; }
     ;
 
 BindingList

-    : LexicalBinding BindingList_ { $$ = CYNew CYDeclarations($1, $2); }
+    : LexicalBinding[binding] BindingList_[next] { $$ = CYNew CYBindings($binding, $next); }

     ;
 
 LexicalBinding
     ;
 
 LexicalBinding

-    : BindingIdentifier InitializerOpt { $$ = CYNew CYDeclaration($1, $2); }
-    | BindingPattern Initializer { CYNOT(@1); }
+    : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
+    | LexOf BindingPattern Initializer { CYNOT(@$); }

     ;
 /* }}} */
 /* 13.3.2 Variable Statement {{{ */
 VariableStatement_
     ;
 /* }}} */
 /* 13.3.2 Variable Statement {{{ */
 VariableStatement_

-    : Var_ VariableDeclarationList { $$ = CYNew CYVar($2); }
+    : Var_ VariableDeclarationList[bindings] { $$ = CYNew CYVar($bindings); }

     ;
 
 VariableStatement
     ;
 
 VariableStatement

-    : VariableStatement_ Terminator { $$ = $1; }
+    : VariableStatement_[statement] Terminator { $$ = $statement; }

     ;
 
 VariableDeclarationList_
     ;
 
 VariableDeclarationList_

-    : "," VariableDeclarationList { $$ = $2; }
+    : "," VariableDeclarationList[bindings] { $$ = $bindings; }

     | { $$ = NULL; }
     ;
 
 VariableDeclarationList
     | { $$ = NULL; }
     ;
 
 VariableDeclarationList

-    : VariableDeclaration VariableDeclarationList_ { $$ = CYNew CYDeclarations($1, $2); }
+    : LexBind VariableDeclaration[binding] VariableDeclarationList_[next] { $$ = CYNew CYBindings($binding, $next); }

     ;
 
 VariableDeclaration
     ;
 
 VariableDeclaration

-    : BindingIdentifier InitializerOpt { $$ = CYNew CYDeclaration($1, $2); }
-    | BindingPattern Initializer { CYNOT(@1); }
+    : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
+    | LexOf BindingPattern Initializer { CYNOT(@$); }

     ;
 /* }}} */
 /* 13.3.3 Destructuring Binding Patterns {{{ */
     ;
 /* }}} */
 /* 13.3.3 Destructuring Binding Patterns {{{ */


@@ -1359,11 +1544,11 @@ BindingPattern
     ;
 
 ObjectBindingPattern
     ;
 
 ObjectBindingPattern

-    : BRACE BindingPropertyListOpt "}"
+    : "let {" BindingPropertyListOpt "}"

     ;
 
 ArrayBindingPattern
     ;
 
 ArrayBindingPattern

-    : "[" { CYNOT(@$); }
+    : "let [" BindingElementListOpt "]"

     ;
 
 BindingPropertyList_
     ;
 
 BindingPropertyList_


@@ -1377,25 +1562,41 @@ BindingPropertyList
 
 BindingPropertyListOpt
     : BindingPropertyList
 
 BindingPropertyListOpt
     : BindingPropertyList

-    |
+    | LexOf
+    ;
+
+BindingElementList
+    : BindingElementOpt[element] "," BindingElementListOpt[next]
+    | BindingRestElement[element]
+    | BindingElement[element]
+    ;
+
+BindingElementListOpt
+    : BindingElementList[pass]
+    | LexBind LexOf

     ;
 
 BindingProperty
     : SingleNameBinding
     ;
 
 BindingProperty
     : SingleNameBinding

-    | PropertyName ":" BindingElement
+    | LexOf PropertyName ":" BindingElement

     ;
 
 BindingElement
     ;
 
 BindingElement

-    : SingleNameBinding { $$ = $1; }
-    | BindingPattern InitializerOpt { CYNOT(@$); }
+    : LexBind SingleNameBinding[pass] { $$ = $pass; }
+    | LexBind LexOf BindingPattern InitializerOpt[initializer] { CYNOT(@$); }
+    ;
+
+BindingElementOpt
+    : BindingElement[pass]
+    | LexBind LexOf

     ;
 
 SingleNameBinding
     ;
 
 SingleNameBinding

-    : BindingIdentifier InitializerOpt { $$ = CYNew CYDeclaration($1, $2); }
+    : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }

     ;
 
 BindingRestElement
     ;
 
 BindingRestElement

-    : "..." BindingIdentifier
+    : LexBind LexOf "..." BindingIdentifier

     ;
 /* }}} */
 /* 13.4 Empty Statement {{{ */
     ;
 /* }}} */
 /* 13.4 Empty Statement {{{ */


@@ -1405,151 +1606,136 @@ EmptyStatement
 /* }}} */
 /* 13.5 Expression Statement {{{ */
 ExpressionStatement_
 /* }}} */
 /* 13.5 Expression Statement {{{ */
 ExpressionStatement_

-    : Expression { $$ = CYNew CYExpress($1); }
+    : Expression[expression] { $$ = CYNew CYExpress($[expression]); }

 
 ExpressionStatement
 
 ExpressionStatement

-    : ExpressionStatement_ Terminator { $$ = $1; }
+    : ExpressionStatement_[statement] Terminator { $$ = $statement; }

     ;
 /* }}} */
 /* 13.6 The if Statement {{{ */
 ElseStatementOpt
     ;
 /* }}} */
 /* 13.6 The if Statement {{{ */
 ElseStatementOpt

-    : "else" Statement { $$ = $2; }
+    : "else" Statement[false] { $$ = $false; }

     | %prec "if" { $$ = NULL; }
     ;
 
 IfStatement
     | %prec "if" { $$ = NULL; }
     ;
 
 IfStatement

-    : "if" "(" Expression ")" Statement ElseStatementOpt { $$ = CYNew CYIf($3, $5, $6); }
+    : "if" "(" Expression[test] ")" Statement[true] ElseStatementOpt[false] { $$ = CYNew CYIf($test, $true, $false); }

     ;
 /* }}} */
 /* 13.7 Iteration Statements {{{ */
 IterationStatement
     ;
 /* }}} */
 /* 13.7 Iteration Statements {{{ */
 IterationStatement

-    : "do" Statement "while" "(" Expression ")" TerminatorOpt { $$ = CYNew CYDoWhile($5, $2); }
-    | "while" "(" Expression ")" Statement { $$ = CYNew CYWhile($3, $5); }
-    | "for" "(" LexPushInOn ForStatementInitializer LexPopIn ExpressionOpt ";" ExpressionOpt ")" Statement { $$ = CYNew CYFor($4, $6, $8, $10); }
-    | "for" "(" LexPushInOn LexSetRegExp Var_ BindingIdentifier Initializer "!in" LexPopIn Expression ")" Statement { $$ = CYNew CYForInitialized(CYNew CYDeclaration($6, $7), $10, $12); }
-    | "for" "(" LexPushInOn ForInStatementInitializer "!in" LexPopIn Expression ")" Statement { $$ = CYNew CYForIn($4, $7, $9); }
-    | "for" "(" LexPushInOn ForInStatementInitializer "of" LexPopIn AssignmentExpression ")" Statement { $$ = CYNew CYForOf($4, $7, $9); }
+    : "do" Statement[code] "while" "(" Expression[test] ")" TerminatorOpt { $$ = CYNew CYDoWhile($test, $code); }
+    | "while" "(" Expression[test] ")" Statement[code] { $$ = CYNew CYWhile($test, $code); }
+    | "for" "(" LexPushInOn ForStatementInitializer[initializer] LexPopIn ExpressionOpt[test] ";" ExpressionOpt[increment] ")" Statement[code] { $$ = CYNew CYFor($initializer, $test, $increment, $code); }
+    | "for" "(" LexPushInOn LexLet LexOf Var_ LexBind BindingIdentifier[identifier] Initializer[initializer] "!in" LexPopIn Expression[iterable] ")" Statement[code] { $$ = CYNew CYForInitialized(CYNew CYBinding($identifier, $initializer), $iterable, $code); }
+    | "for" "(" LexPushInOn ForInStatementInitializer[initializer] "!in" LexPopIn Expression[iterable] ")" Statement[code] { $$ = CYNew CYForIn($initializer, $iterable, $code); }
+    | "for" "(" LexPushInOn ForInStatementInitializer[initializer] "of" LexPopIn AssignmentExpression[iterable] ")" Statement[code] { $$ = CYNew CYForOf($initializer, $iterable, $code); }

     ;
 
 ForStatementInitializer
     ;
 
 ForStatementInitializer

-    : LexSetRegExp EmptyStatement { $$ = $2; }
-    | ExpressionStatement_ ";" { $$ = $1; }
-    | LexSetRegExp VariableStatement_ ";" { $$ = $2; }
-    | LexSetRegExp LexicalDeclaration_ ";" { $$ = $2; }
+    : LexLet LexOf EmptyStatement[pass] { $$ = $pass; }
+    | LexLet ExpressionStatement_[initializer] ";" { $$ = $initializer; }
+    | LexLet LexOf VariableStatement_[initializer] ";" { $$ = $initializer; }
+    | LexicalDeclaration_[initializer] ";" { $$ = $initializer; }

     ;
 
 ForInStatementInitializer
     ;
 
 ForInStatementInitializer

-    : LeftHandSideExpression { $$ = $1; }
-    | LexSetRegExp Var_ ForBinding { $$ = CYNew CYForVariable($3); }
-    | LexSetRegExp ForDeclaration { $$ = $2; }
+    : LexLet LexOf BracedExpression[pass] { $$ = $pass; }
+    | LexLet LexOf IndirectExpression[pass] { $$ = $pass; }
+    | LexLet LexOf Var_ LexBind ForBinding[binding] { $$ = CYNew CYForVariable($binding); }
+    | ForDeclaration[pass] { $$ = $pass; }

     ;
 
 ForDeclaration
     ;
 
 ForDeclaration

-    : LetOrConst ForBinding { $$ = CYNew CYForLexical($1, $2); }
+    : LetOrConst[constant] ForBinding[binding] { $$ = CYNew CYForLexical($constant, $binding); }

     ;
 
 ForBinding
     ;
 
 ForBinding

-    : BindingIdentifier { $$ = CYNew CYDeclaration($1, NULL); }
-    | BindingPattern { CYNOT(@1); }
+    : BindingIdentifier[identifier] { $$ = CYNew CYBinding($identifier, NULL); }
+    | LexOf BindingPattern { CYNOT(@$); }

     ;
 /* }}} */
 /* 13.8 The continue Statement {{{ */
     ;
 /* }}} */
 /* 13.8 The continue Statement {{{ */

-Continue
-    : "continue" LexNewLine
-    ;
-

 ContinueStatement
 ContinueStatement

-    : Continue TerminatorSoft { $$ = CYNew CYContinue(NULL); }
-    | Continue Identifier Terminator { $$ = CYNew CYContinue($2); }
+    : "continue" TerminatorSoft { $$ = CYNew CYContinue(NULL); }
+    | "continue" NewLineNot LexOf Identifier[label] Terminator { $$ = CYNew CYContinue($label); }

     ;
 /* }}} */
 /* 13.9 The break Statement {{{ */
     ;
 /* }}} */
 /* 13.9 The break Statement {{{ */

-Break
-    : "break" LexNewLine
-    ;
-

 BreakStatement
 BreakStatement

-    : Break TerminatorSoft { $$ = CYNew CYBreak(NULL); }
-    | Break Identifier Terminator { $$ = CYNew CYBreak($2); }
+    : "break" TerminatorSoft { $$ = CYNew CYBreak(NULL); }
+    | "break" NewLineNot LexOf Identifier[label] Terminator { $$ = CYNew CYBreak($label); }

     ;
 /* }}} */
 /* 13.10 The return Statement {{{ */
     ;
 /* }}} */
 /* 13.10 The return Statement {{{ */

-Return
-    : "!return" LexNewLine
-    ;
-

 ReturnStatement
 ReturnStatement

-    : Return LexSetRegExp TerminatorSoft { $$ = CYNew CYReturn(NULL); }
-    | Return Expression Terminator { $$ = CYNew CYReturn($2); }
+    : Return TerminatorSoft { $$ = CYNew CYReturn(NULL); }
+    | Return NewLineNot Expression[value] Terminator { $$ = CYNew CYReturn($value); }

     ;
 /* }}} */
 /* 13.11 The with Statement {{{ */
 WithStatement
     ;
 /* }}} */
 /* 13.11 The with Statement {{{ */
 WithStatement

-    : "with" "(" Expression ")" Statement { $$ = CYNew CYWith($3, $5); }
+    : "with" "(" Expression[scope] ")" Statement[code] { $$ = CYNew CYWith($scope, $code); }

     ;
 /* }}} */
 /* 13.12 The switch Statement {{{ */
 SwitchStatement
     ;
 /* }}} */
 /* 13.12 The switch Statement {{{ */
 SwitchStatement

-    : "switch" "(" Expression ")" CaseBlock { $$ = CYNew CYSwitch($3, $5); }
+    : "switch" "(" Expression[value] ")" CaseBlock[clauses] { $$ = CYNew CYSwitch($value, $clauses); }

     ;
 
 CaseBlock
     ;
 
 CaseBlock

-    : BRACE CaseClausesOpt "}" { $$ = $2; }
+    : "{" CaseClausesOpt[clauses] "}" { $$ = $clauses; }

     ;
 
 CaseClause
     ;
 
 CaseClause

-    : "case" Expression ":" StatementListOpt { $$ = CYNew CYClause($2, $4); }
+    : "case" Expression[value] ":" StatementListOpt[code] { $$ = CYNew CYClause($value, $code); }

     ;
 
 CaseClausesOpt
     ;
 
 CaseClausesOpt

-    : CaseClause CaseClausesOpt { $1->SetNext($2); $$ = $1; }
-    | DefaultClause CaseClausesOpt { $1->SetNext($2); $$ = $1; }
+    : CaseClause[clause] CaseClausesOpt[next] { $clause->SetNext($next); $$ = $clause; }
+    | DefaultClause[clause] CaseClausesOpt[next] { $clause->SetNext($next); $$ = $clause; }

     | { $$ = NULL; }
     ;
 
 // XXX: the standard makes certain you can only have one of these
 DefaultClause
     | { $$ = NULL; }
     ;
 
 // XXX: the standard makes certain you can only have one of these
 DefaultClause

-    : "default" ":" StatementListOpt { $$ = CYNew CYClause(NULL, $3); }
+    : "default" ":" StatementListOpt[code] { $$ = CYNew CYClause(NULL, $code); }

     ;
 /* }}} */
 /* 13.13 Labelled Statements {{{ */
 LabelledStatement
     ;
 /* }}} */
 /* 13.13 Labelled Statements {{{ */
 LabelledStatement

-    : LabelIdentifier ":" LabelledItem { $$ = CYNew CYLabel($1, $3); }
+    : LabelIdentifier[name] ":" LabelledItem[statement] { $$ = CYNew CYLabel($name, $statement); }

     ;
 
 LabelledItem
     ;
 
 LabelledItem

-    : Statement { $$ = $1; }
-    | LexSetStatement LexSetRegExp FunctionDeclaration { $$ = $3; }
+    : Statement[pass] { $$ = $pass; }
+    | LexSetStatement LexLet LexOf FunctionDeclaration[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 13.14 The throw Statement {{{ */
     ;
 /* }}} */
 /* 13.14 The throw Statement {{{ */

-Throw
-    : "throw" LexNewLine
-    ;
-

 ThrowStatement
 ThrowStatement

-    : Throw LexSetRegExp TerminatorSoft { CYERR(@1, "throw without exception"); }
-    | Throw Expression Terminator { $$ = CYNew cy::Syntax::Throw($2); }
+    : "throw"[throw] TerminatorSoft { CYERR(@throw, "throw without exception"); }
+    | "throw" NewLineNot Expression[value] Terminator { $$ = CYNew cy::Syntax::Throw($value); }

     ;
 /* }}} */
 /* 13.15 The try Statement {{{ */
 TryStatement
     ;
 /* }}} */
 /* 13.15 The try Statement {{{ */
 TryStatement

-    : "try" Block Catch { $$ = CYNew cy::Syntax::Try($2, $3, NULL); }
-    | "try" Block Finally { $$ = CYNew cy::Syntax::Try($2, NULL, $3); }
-    | "try" Block Catch Finally { $$ = CYNew cy::Syntax::Try($2, $3, $4); }
+    : "try" Block[code] Catch[catch] { $$ = CYNew cy::Syntax::Try($code, $catch, NULL); }
+    | "try" Block[code] Finally[finally] { $$ = CYNew cy::Syntax::Try($code, NULL, $finally); }
+    | "try" Block[code] Catch[catch] Finally[finally] { $$ = CYNew cy::Syntax::Try($code, $catch, $finally); }

     ;
 
 Catch
     ;
 
 Catch

-    : "catch" "(" CatchParameter ")" Block { $$ = CYNew cy::Syntax::Catch($3, $5); }
+    : "catch" "(" LexBind CatchParameter[name] ")" Block[code] { $$ = CYNew cy::Syntax::Catch($name, $code); }

     ;
 
 Finally
     ;
 
 Finally

-    : "finally" Block { $$ = CYNew CYFinally($2); }
+    : "finally" Block[code] { $$ = CYNew CYFinally($code); }

     ;
 
 CatchParameter
     ;
 
 CatchParameter

-    : BindingIdentifier { $$ = $1; }
-    | BindingPattern { CYNOT(@$); }
+    : BindingIdentifier[pass] { $$ = $pass; }
+    | LexOf BindingPattern { CYNOT(@$); }

     ;
 /* }}} */
 /* 13.16 The debugger Statement {{{ */
     ;
 /* }}} */
 /* 13.16 The debugger Statement {{{ */


@@ -1560,30 +1746,30 @@ DebuggerStatement
 
 /* 14.1 Function Definitions {{{ */
 FunctionDeclaration
 
 /* 14.1 Function Definitions {{{ */
 FunctionDeclaration

-    : ";function" BindingIdentifier "(" FormalParameters ")" BRACE LexPushSuperOff FunctionBody "}" LexPopSuper { $$ = CYNew CYFunctionStatement($2, $4, $8); }
+    : ";function" BindingIdentifier[name] "(" FormalParameters[parameters] ")" "{" LexPushSuperOff FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYFunctionStatement($name, $parameters, $code); }

     ;
 
 FunctionExpression
     ;
 
 FunctionExpression

-    : "function" BindingIdentifierOpt "(" LexPushInOff FormalParameters ")" LexPopIn BRACE LexPushSuperOff LexPushInOff FunctionBody "}" LexPopIn LexPopSuper { $$ = CYNew CYFunctionExpression($2, $5, $11); }
+    : "function" BindingIdentifierOpt[name] "(" FormalParameters[parameters] ")" "{" LexPushSuperOff FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYFunctionExpression($name, $parameters, $code); }

     ;
 
 StrictFormalParameters
     ;
 
 StrictFormalParameters

-    : FormalParameters { $$ = $1; }
+    : FormalParameters[pass] { $$ = $pass; }

     ;
 
 FormalParameters
     ;
 
 FormalParameters

-    : { $$ = NULL; }
+    : LexBind LexOf { $$ = NULL; }

     | FormalParameterList
     ;
 
 FormalParameterList_
     | FormalParameterList
     ;
 
 FormalParameterList_

-    : "," FormalParameterList { $$ = $2; }
+    : "," FormalParameterList[parameters] { $$ = $parameters; }

     | { $$ = NULL; }
     ;
 
 FormalParameterList
     : FunctionRestParameter { CYNOT(@$); }
     | { $$ = NULL; }
     ;
 
 FormalParameterList
     : FunctionRestParameter { CYNOT(@$); }

-    | FormalParameter FormalParameterList_ { $$ = CYNew CYFunctionParameter($1, $2); }
+    | FormalParameter[binding] FormalParameterList_[next] { $$ = CYNew CYFunctionParameter($binding, $next); }

     ;
 
 FunctionRestParameter
     ;
 
 FunctionRestParameter


@@ -1591,90 +1777,87 @@ FunctionRestParameter
     ;
 
 FormalParameter
     ;
 
 FormalParameter

-    : BindingElement { $$ = $1; }
+    : BindingElement[pass] { $$ = $pass; }

     ;
 
 FunctionBody
     ;
 
 FunctionBody

-    : LexPushYieldOff FunctionStatementList LexPopYield { $$ = $2; }
+    : LexPushYieldOff FunctionStatementList[code] LexPopYield { $$ = $code; }

     ;
 
 FunctionStatementList
     ;
 
 FunctionStatementList

-    : LexPushReturnOn StatementListOpt LexPopReturn { $$ = $2; }
+    : LexPushReturnOn StatementListOpt[code] LexPopReturn { $$ = $code; }

     ;
 /* }}} */
 /* 14.2 Arrow Function Definitions {{{ */
 ArrowFunction
     ;
 /* }}} */
 /* 14.2 Arrow Function Definitions {{{ */
 ArrowFunction

-    : LexSetRegExp ArrowParameters "=>" LexNoBrace ConciseBody { $$ = CYNew CYFatArrow($2, $5); }
+    : ArrowParameters[parameters] LexNewLineOrOpt "=>" LexNoBrace ConciseBody[code] { $$ = CYNew CYFatArrow($parameters, $code); }

     ;
 
 ArrowParameters
     ;
 
 ArrowParameters

-    : BindingIdentifier { $$ = CYNew CYFunctionParameter(CYNew CYDeclaration($1)); }
-    | CoverParenthesizedExpressionAndArrowParameterList { if ($1 == NULL) $$ = NULL; else { $$ = $1->expression_->Parameter(); if ($$ == NULL) CYERR(@1, "invalid parameter list"); } }
+    : BindingIdentifier[identifier] { $$ = CYNew CYFunctionParameter(CYNew CYBinding($identifier)); }
+    | LexOf CoverParenthesizedExpressionAndArrowParameterList[cover] { if ($cover == NULL) $$ = NULL; else { $$ = $cover->expression_->Parameter(); if ($$ == NULL) CYERR(@cover, "invalid parameter list"); } }

     ;
 
 ConciseBody
     ;
 
 ConciseBody

-    : AssignmentExpression { $$ = CYNew CYReturn($1); }
-    | LexSetRegExp ";{" LexPushInOff FunctionBody "}" LexPopIn { $$ = $4; }
+    : AssignmentExpression[expression] { $$ = CYNew CYReturn($expression); }
+    | LexOf ";{" FunctionBody[code] "}" { $$ = $code; }

     ;
 /* }}} */
 /* 14.3 Method Definitions {{{ */
 MethodDefinition
     ;
 /* }}} */
 /* 14.3 Method Definitions {{{ */
 MethodDefinition

-    : PropertyName "(" StrictFormalParameters ")" BRACE FunctionBody "}" { $$ = CYNew CYPropertyMethod($1, $3, $6); }
-    | GeneratorMethod { $$ = $1; }
-    | "get" PropertyName "(" ")" BRACE FunctionBody "}" { $$ = CYNew CYPropertyGetter($2, $6); }
-    | "set" PropertyName "(" PropertySetParameterList ")" BRACE FunctionBody "}" { $$ = CYNew CYPropertySetter($2, CYNew CYFunctionParameter($4), $7); }
+    : PropertyName[name] "(" StrictFormalParameters[parameters] ")" "{" FunctionBody[code] "}" { $$ = CYNew CYPropertyMethod($name, $parameters, $code); }
+    | GeneratorMethod[pass] { $$ = $pass; }
+    | "get" PropertyName[name] "(" ")" "{" FunctionBody[code] "}" { $$ = CYNew CYPropertyGetter($name, $code); }
+    | "set" PropertyName[name] "(" PropertySetParameterList[parameter] ")" "{" FunctionBody[code] "}" { $$ = CYNew CYPropertySetter($name, $parameter, $code); }

     ;
 
 PropertySetParameterList
     ;
 
 PropertySetParameterList

-    : FormalParameter { $$ = $1; }
+    : FormalParameter[binding] { $$ = CYNew CYFunctionParameter($binding); }

     ;
 /* }}} */
 /* 14.4 Generator Function Definitions {{{ */
 GeneratorMethod
     ;
 /* }}} */
 /* 14.4 Generator Function Definitions {{{ */
 GeneratorMethod

-    : "*" PropertyName "(" StrictFormalParameters ")" BRACE GeneratorBody "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorMethod($2, $4, $7); */ }
+    : "*" PropertyName[name] "(" StrictFormalParameters[parameters] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorMethod($name, $parameters, $code); */ }

     ;
 
 GeneratorDeclaration
     ;
 
 GeneratorDeclaration

-    : ";function" "*" BindingIdentifier "(" FormalParameters ")" BRACE GeneratorBody "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorStatement($3, $5, $8); */ }
+    : ";function" LexOf "*" BindingIdentifier[name] "(" FormalParameters[code] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorStatement($name, $parameters, $code); */ }

     ;
 
 GeneratorExpression
     ;
 
 GeneratorExpression

-    : "function" "*" BindingIdentifierOpt "(" FormalParameters ")" BRACE GeneratorBody "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorExpression($3, $5, $8); */ }
+    : "function" LexOf "*" BindingIdentifierOpt[name] "(" FormalParameters[parameters] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorExpression($name, $parameters, $code); */ }

     ;
 
 GeneratorBody
     ;
 
 GeneratorBody

-    : LexPushYieldOn FunctionStatementList LexPopYield { $$ = $2; }
-    ;
-
-Yield
-    : "!yield" LexNewLine LexNoStar
+    : LexPushYieldOn FunctionStatementList[code] LexPopYield { $$ = $code; }

     ;
 
 YieldExpression
     ;
 
 YieldExpression

-    : Yield LexSetRegExp NewLineOpt { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ }
-    | Yield AssignmentExpression { CYNOT(@$); /* $$ = CYNew CYYieldValue($2); */ }
-    | Yield LexSetRegExp YieldStar AssignmentExpression { CYNOT(@$); /* $$ = CYNew CYYieldGenerator($4); */ }
+    : "!yield" LexNewLineOrNot "\n" LexOf { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ }
+    | "!yield" LexNewLineOrNot "" LexNoStar LexOf { CYNOT(@$); /* $$ = CYNew CYYieldValue(NULL); */ } %prec "!yield"
+    | "!yield" LexNewLineOrNot "" LexNoStar AssignmentExpression[value] { CYNOT(@$); /* $$ = CYNew CYYieldValue($value); */ }
+    | "!yield" LexNewLineOrNot "" LexNoStar LexOf "yield *" AssignmentExpression[generator] { CYNOT(@$); /* $$ = CYNew CYYieldGenerator($generator); */ }

     ;
 /* }}} */
 /* 14.5 Class Definitions {{{ */
 ClassDeclaration
     ;
 /* }}} */
 /* 14.5 Class Definitions {{{ */
 ClassDeclaration

-    : ";class" BindingIdentifier ClassTail { $$ = CYNew CYClassStatement($2, $3); }
+    : ";class" BindingIdentifier[name] ClassTail[tail] { $$ = CYNew CYClassStatement($name, $tail); }

     ;
 
 ClassExpression
     ;
 
 ClassExpression

-    : "class" BindingIdentifierOpt ClassTail { $$ = CYNew CYClassExpression($2, $3); }
+    : "class" BindingIdentifierOpt[name] ClassTail[tail] { $$ = CYNew CYClassExpression($name, $tail); }

     ;
 
 ClassTail
     ;
 
 ClassTail

-    : ClassHeritageOpt { driver.class_.push($1); } BRACE LexPushSuperOn ClassBodyOpt "}" LexPopSuper { driver.class_.pop(); $$ = $1; }
+    : ClassHeritageOpt[tail] { driver.class_.push($tail); } "{" LexPushSuperOn ClassBodyOpt "}" LexPopSuper { driver.class_.pop(); $$ = $tail; }

     ;
 
 ClassHeritage
     ;
 
 ClassHeritage

-    : "extends" LeftHandSideExpression { $$ = CYNew CYClassTail($2); }
+    : "extends" AccessExpression[extends] { $$ = CYNew CYClassTail($extends); }

     ;
 
 ClassHeritageOpt
     ;
 
 ClassHeritageOpt

-    : ClassHeritage { $$ = $1; }
+    : ClassHeritage[pass] { $$ = $pass; }

     | { $$ = CYNew CYClassTail(NULL); }
     ;
 
     | { $$ = CYNew CYClassTail(NULL); }
     ;
 


@@ -1697,110 +1880,110 @@ ClassElementListOpt
     ;
 
 ClassElement
     ;
 
 ClassElement

-    : MethodDefinition { if (CYFunctionExpression *constructor = $1->Constructor()) driver.class_.top()->constructor_ = constructor; else driver.class_.top()->instance_->*$1; }
-    | "static" MethodDefinition { driver.class_.top()->static_->*$2; }
+    : MethodDefinition[method] { if (CYFunctionExpression *constructor = $method->Constructor()) driver.class_.top()->constructor_ = constructor; else driver.class_.top()->instance_->*$method; }
+    | "static" MethodDefinition[method] { driver.class_.top()->static_->*$method; }

     | ";"
     ;
 /* }}} */
 
 /* 15.1 Scripts {{{ */
 Script
     | ";"
     ;
 /* }}} */
 
 /* 15.1 Scripts {{{ */
 Script

-    : ScriptBodyOpt { driver.script_ = CYNew CYScript($1); }
+    : ScriptBodyOpt[code] { driver.script_ = CYNew CYScript($code); }

     ;
 
 ScriptBody
     ;
 
 ScriptBody

-    : StatementList { $$ = $1; }
+    : StatementList[pass] { $$ = $pass; }

     ;
 
 ScriptBodyOpt
     ;
 
 ScriptBodyOpt

-    : ScriptBody { $$ = $1; }
-    | LexSetStatement LexSetRegExp { $$ = NULL; }
+    : ScriptBody[pass] { $$ = $pass; }
+    | LexSetStatement LexLet LexOf { $$ = NULL; }

     ;
 /* }}} */
 /* 15.2 Modules {{{ */
 Module
     ;
 /* }}} */
 /* 15.2 Modules {{{ */
 Module

-    : ModuleBodyOpt
+    : ModuleBodyOpt[code] { driver.script_ = CYNew CYScript($code); }

     ;
 
 ModuleBody
     ;
 
 ModuleBody

-    : ModuleItemList
+    : ModuleItemList[pass] { $$ = $pass; }

     ;
 
 ModuleBodyOpt
     ;
 
 ModuleBodyOpt

-    : ModuleBody
-    |
+    : ModuleBody[pass] { $$ = $pass; }
+    | LexSetStatement LexLet LexOf { $$ = NULL; }

     ;
 
 ModuleItemList
     ;
 
 ModuleItemList

-    : ModuleItemListOpt ModuleItem
+    : ModuleItem[statement] ModuleItemListOpt[next] { $$ = $statement; CYSetLast($$) = $next; }

     ;
 
 ModuleItemListOpt
     ;
 
 ModuleItemListOpt

-    : ModuleItemList
-    |
+    : ModuleItemList[pass] { $$ = $pass; }
+    | LexSetStatement LexLet LexOf { $$ = NULL; }

     ;
 
 ModuleItem
     ;
 
 ModuleItem

-    : LexSetStatement LexSetRegExp ImportDeclaration
-    | LexSetStatement LexSetRegExp ExportDeclaration
-    | StatementListItem
+    : LexSetStatement LexLet LexOf ImportDeclaration[pass] { $$ = $pass; }
+    | LexSetStatement LexLet LexOf ExportDeclaration { CYNOT(@$); }
+    | StatementListItem[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 15.2.2 Imports {{{ */
 ImportDeclaration
     ;
 /* }}} */
 /* 15.2.2 Imports {{{ */
 ImportDeclaration

-    : "import" ImportClause FromClause Terminator
-    | "import" ModuleSpecifier Terminator
+    : "import" ImportClause[specifiers] FromClause[module] Terminator { $$ = CYNew CYImportDeclaration($specifiers, $module); }
+    | "import" LexOf ModuleSpecifier[module] Terminator { $$ = CYNew CYImportDeclaration(NULL, $module); }

     ;
 
 ImportClause
     ;
 
 ImportClause

-    : ImportedDefaultBinding
-    | NameSpaceImport
-    | NamedImports
-    | ImportedDefaultBinding "," NameSpaceImport
-    | ImportedDefaultBinding "," NamedImports
+    : ImportedDefaultBinding[default] { $$ = $default; }
+    | LexOf NameSpaceImport[pass] { $$ = $pass; }
+    | LexOf NamedImports[pass] { $$ = $pass; }
+    | ImportedDefaultBinding[default] "," NameSpaceImport[next] { $$ = $default; CYSetLast($$) = $next; }
+    | ImportedDefaultBinding[default] "," NamedImports[next] { $$ = $default; CYSetLast($$) = $next; }

     ;
 
 ImportedDefaultBinding
     ;
 
 ImportedDefaultBinding

-    : ImportedBinding
+    : ImportedBinding[binding] { $$ = CYNew CYImportSpecifier(CYNew CYIdentifier("default"), $binding); }

     ;
 
 NameSpaceImport
     ;
 
 NameSpaceImport

-    : "*" "as" ImportedBinding
+    : "*" "as" ImportedBinding[binding] { $$ = CYNew CYImportSpecifier(NULL, $binding); }

     ;
 
 NamedImports
     ;
 
 NamedImports

-    : BRACE ImportsListOpt "}"
+    : "{" ImportsListOpt[pass] "}" { $$ = $pass; }

     ;
 
 FromClause
     ;
 
 FromClause

-    : "from" ModuleSpecifier
+    : "from" ModuleSpecifier[pass] { $$ = $pass; }

     ;
 
 ImportsList_
     ;
 
 ImportsList_

-    : "," ImportsListOpt
-    |
+    : "," ImportsListOpt[pass] { $$ = $pass; }
+    | { $$ = NULL; }

     ;
 
 ImportsList
     ;
 
 ImportsList

-    : ImportSpecifier ImportsList_
+    : ImportSpecifier[import] ImportsList_[next] { $$ = $import; CYSetLast($$) = $next; }

     ;
 
 ImportsListOpt
     ;
 
 ImportsListOpt

-    : ImportsList
-    |
+    : ImportsList[pass] { $$ = $pass; }
+    | LexOf { $$ = NULL; }

     ;
 
 ImportSpecifier
     ;
 
 ImportSpecifier

-    : ImportedBinding
-    | IdentifierName "as" ImportedBinding
+    : ImportedBinding[binding] { $$ = CYNew CYImportSpecifier($binding, $binding); }
+    | LexOf IdentifierName[name] "as" ImportedBinding[binding] { $$ = CYNew CYImportSpecifier($name, $binding); }

     ;
 
 ModuleSpecifier
     ;
 
 ModuleSpecifier

-    : StringLiteral
+    : StringLiteral[pass] { $$ = $pass; }

     ;
 
 ImportedBinding
     ;
 
 ImportedBinding

-    : BindingIdentifier
+    : BindingIdentifier[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* 15.2.3 Exports {{{ */
     ;
 /* }}} */
 /* 15.2.3 Exports {{{ */


@@ -1809,13 +1992,13 @@ ExportDeclaration_
     | ExportClause FromClause Terminator
     | ExportClause Terminator
     | VariableStatement
     | ExportClause FromClause Terminator
     | ExportClause Terminator
     | VariableStatement

-    | "default" LexSetStatement LexSetRegExp HoistableDeclaration
-    | "default" LexSetStatement LexSetRegExp ClassDeclaration
+    | "default" LexSetStatement LexOf HoistableDeclaration
+    | "default" LexSetStatement LexOf ClassDeclaration

     | "default" LexSetStatement AssignmentExpression Terminator
     ;
 
 ExportDeclaration
     | "default" LexSetStatement AssignmentExpression Terminator
     ;
 
 ExportDeclaration

-    : "export" LexSetStatement LexSetRegExp ExportDeclaration_
+    : "export" LexSetStatement LexLet LexOf ExportDeclaration_

     | "export" Declaration
     ;
 
     | "export" Declaration
     ;
 


@@ -1846,64 +2029,175 @@ ExportSpecifier
 @begin C
 /* Cycript (C): Type Encoding {{{ */
 TypeSignifier
 @begin C
 /* Cycript (C): Type Encoding {{{ */
 TypeSignifier

-    : IdentifierType { $$ = CYNew CYTypedIdentifier(@1, $1); }
-    | "(" LexPushInOff "*" TypeQualifierRight ")" LexPopIn { $$ = $4; }
+    : IdentifierType[name] { $$ = CYNew CYTypedName(@name, $name); }
+    | StringLiteral[name] { $$ = CYNew CYTypedName(@name, $name); }
+    | NumericLiteral[name] { $$ = CYNew CYTypedName(@name, $name); }
+    | "(" "*" TypeQualifierRightOpt[typed] ")" { $$ = $typed; $$->modifier_ = CYNew CYTypePointerTo($$->modifier_); }
+    ;
+
+TypeSignifierNone
+    : { $$ = CYNew CYTypedName(@$); }
+    ;
+
+TypeSignifierOpt
+    : TypeSignifier[pass] { $$ = $pass; }
+    | TypeSignifierNone[pass] { $$ = $pass; }
+    ;
+
+Restrict
+    : "__restrict"
+    | "restrict"
+    ;
+
+RestrictOpt
+    : Restrict
+    |
+    ;
+
+ParameterModifier
+    : "throw" "(" ")"
+    ;
+
+ParameterModifierOpt
+    : ParameterModifier
+    |
+    ;
+
+ParameterTail
+    : TypedParameterListOpt[formal] ")" ParameterModifierOpt { $$ = CYNew CYTypeFunctionWith($formal->variadic_, $formal->parameters_); }

     ;
 
 SuffixedType
     ;
 
 SuffixedType

-    : SuffixedType "[" NumericLiteral "]" { $$ = $1; $$->modifier_ = CYNew CYTypeArrayOf($3, $$->modifier_); }
-    | "(" LexPushInOff "^" TypeQualifierRight ")" LexPopIn "(" LexPushInOff TypedParameterListOpt ")" LexPopIn { $$ = $4; $$->modifier_ = CYNew CYTypeBlockWith($9, $$->modifier_); }
-    | TypeSignifier "(" LexPushInOff TypedParameterListOpt ")" LexPopIn { $$ = $1; $$->modifier_ = CYNew CYTypeFunctionWith($4, $$->modifier_); }
-    | "(" LexPushInOff TypedParameterListOpt ")" LexPopIn { $$ = CYNew CYTypedIdentifier(@1); $$->modifier_ = CYNew CYTypeFunctionWith($3, $$->modifier_); }
-    | TypeSignifier { $$ = $1; }
-    | { $$ = CYNew CYTypedIdentifier(@$); }
+    : SuffixedTypeOpt[typed] "[" RestrictOpt NumericLiteral[size] "]" { $$ = $typed; $$->modifier_ = CYNew CYTypeArrayOf($size, $$->modifier_); }
+    | "(" "^" TypeQualifierRightOpt[typed] ")" "(" TypedParameters[parameters] ")" { $$ = $typed; $$->modifier_ = CYNew CYTypeBlockWith($parameters, $$->modifier_); }
+    | TypeSignifier[typed] "(" ParameterTail[modifier] { $$ = $typed; CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
+    | "("[parenthesis] ParameterTail[modifier] { $$ = CYNew CYTypedName(@parenthesis); CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
+    ;
+
+SuffixedTypeOpt
+    : SuffixedType[pass] { $$ = $pass; }
+    | TypeSignifierOpt[pass] { $$ = $pass; }

     ;
 
 PrefixedType
     ;
 
 PrefixedType

-    : "*" TypeQualifierRight { $$ = $2; $$->modifier_ = CYNew CYTypePointerTo($$->modifier_); }
+    : "*" TypeQualifierRightOpt[typed] { $$ = $typed; $$->modifier_ = CYNew CYTypePointerTo($$->modifier_); }

     ;
 
 TypeQualifierLeft
     ;
 
 TypeQualifierLeft

-    : { $$ = NULL; }
-    | "const" TypeQualifierLeft { $$ = $2; CYSetLast($$) = CYNew CYTypeConstant(); }
-    | "volatile" TypeQualifierLeft { $$ = $2; CYSetLast($$) = CYNew CYTypeVolatile(); }
+    : "const" TypeQualifierLeftOpt[modifier] { $$ = $modifier; CYSetLast($$) = CYNew CYTypeConstant(); }
+    | "volatile" TypeQualifierLeftOpt[modifier] { $$ = $modifier; CYSetLast($$) = CYNew CYTypeVolatile(); }
+    ;
+
+TypeQualifierLeftOpt
+    : TypeQualifierLeft[pass] { $$ = $pass; }
+    | { $$ = NULL; }

     ;
 
 TypeQualifierRight
     ;
 
 TypeQualifierRight

-    : PrefixedType { $$ = $1; }
-    | SuffixedType { $$ = $1; }
-    | "const" TypeQualifierRight { $$ = $2; $$->modifier_ = CYNew CYTypeConstant($$->modifier_); }
-    | "volatile" TypeQualifierRight { $$ = $2; $$->modifier_ = CYNew CYTypeVolatile($$->modifier_); }
+    : SuffixedType[pass] { $$ = $pass; }
+    | PrefixedType[pass] { $$ = $pass; }
+    | "const" TypeQualifierRightOpt[typed] { $$ = $typed; $$->modifier_ = CYNew CYTypeConstant($$->modifier_); }
+    | "volatile" TypeQualifierRightOpt[typed] { $$ = $typed; $$->modifier_ = CYNew CYTypeVolatile($$->modifier_); }
+    | Restrict TypeQualifierRightOpt[typed] { $$ = $typed; }
+    ;
+
+TypeQualifierRightOpt
+    : TypeQualifierRight[pass] { $$ = $pass; }
+    | TypeSignifierOpt[pass] { $$ = $pass; }

     ;
 
 IntegerType
     ;
 
 IntegerType

-    : "int" { $$ = CYNew CYTypeVariable("int"); }
-    | "unsigned" IntegerTypeOpt { $$ = CYNew CYTypeUnsigned($2); }
-    | "signed" IntegerTypeOpt { $$ = CYNew CYTypeSigned($2); }
-    | "long" IntegerTypeOpt { $$ = CYNew CYTypeLong($2); }
-    | "short" IntegerTypeOpt { $$ = CYNew CYTypeShort($2); }
+    : "int" { $$ = CYNew CYTypeIntegral(CYTypeNeutral); }
+    | "unsigned" IntegerTypeOpt[integral] { $$ = $integral->Unsigned(); if ($$ == NULL) CYERR(@1, "incompatible unsigned"); }
+    | "signed" IntegerTypeOpt[integral] { $$ = $integral->Signed(); if ($$ == NULL) CYERR(@1, "incompatible signed"); }
+    | "long" IntegerTypeOpt[integral] { $$ = $integral->Long(); if ($$ == NULL) CYERR(@1, "incompatible long"); }
+    | "short" IntegerTypeOpt[integral] { $$ = $integral->Short(); if ($$ == NULL) CYERR(@1, "incompatible short"); }

     ;
 
 IntegerTypeOpt
     ;
 
 IntegerTypeOpt

-    : IntegerType { $$ = $1; }
-    | { $$ = CYNew CYTypeVariable("int"); }
+    : IntegerType[pass] { $$ = $pass; }
+    | { $$ = CYNew CYTypeIntegral(CYTypeNeutral); }
+    ;
+
+StructFieldListOpt
+    : TypedIdentifierField[typed] ";" StructFieldListOpt[next] { $$ = CYNew CYTypeStructField($typed, $typed->name_, $next); }
+    | { $$ = NULL; }
+    ;
+
+IntegerNumber
+    : NumericLiteral[pass] { $$ = $pass; }
+    | "-" NumericLiteral[positive] { $$ = $positive; $$->value_ = -$$->value_; }
+    ;
+
+EnumConstantListOpt_
+    : "," EnumConstantListOpt[pass] { $$ = $pass; }
+    | { $$ = NULL; }
+    ;
+
+EnumConstantListOpt
+    : IdentifierType[name] "=" IntegerNumber[value] EnumConstantListOpt_[next] { $$ = CYNew CYEnumConstant($name, $value, $next); }
+    | { $$ = NULL; }
+    ;
+
+TypeSigning
+    : { $$ = CYTypeNeutral; }
+    | "signed" { $$ = CYTypeSigned; }
+    | "unsigned" { $$ = CYTypeUnsigned; }

     ;
 
 PrimitiveType
     ;
 
 PrimitiveType

-    : IdentifierType { $$ = CYNew CYTypeVariable($1); }
-    | IntegerType { $$ = $1; }
-    | "void" { $$ = CYNew CYTypeVoid(); }
-    | "char" { $$ = CYNew CYTypeVariable("char"); }
-    | "signed" "char" { $$ = CYNew CYTypeSigned(CYNew CYTypeVariable("char")); }
-    | "unsigned" "char" { $$ = CYNew CYTypeUnsigned(CYNew CYTypeVariable("char")); }
+    : IdentifierType[name] { $$ = CYNew CYTypeVariable($name); }
+    | IntegerType[pass] { $$ = $pass; }
+    | TypeSigning[signing] "char" { $$ = CYNew CYTypeCharacter($signing); }
+    | TypeSigning[signing] "__int128" { $$ = CYNew CYTypeInt128($signing); }

     ;
 
     ;
 

-TypedIdentifier
-    : TypeQualifierLeft PrimitiveType TypeQualifierRight { $$ = $3; $$->specifier_ = $2; CYSetLast($1) = $$->modifier_; $$->modifier_ = $1; }
+PrimitiveReference
+    : PrimitiveType[pass] { $$ = $pass; }
+    | "struct" IdentifierType[name] { $$ = CYNew CYTypeReference(CYTypeReferenceStruct, $name); }
+    | "enum" IdentifierType[name] { $$ = CYNew CYTypeReference(CYTypeReferenceEnum, $name); }
+    | "struct" AutoComplete { driver.mode_ = CYDriver::AutoStruct; YYACCEPT; }
+    | "enum" AutoComplete { driver.mode_ = CYDriver::AutoEnum; YYACCEPT; }
+    ;
+
+TypedIdentifierMaybe
+    : TypeQualifierLeft[modifier] "void" TypeQualifierRight[typed] { $$ = $typed; $$->specifier_ = CYNew CYTypeVoid(); CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
+    | "void" TypeQualifierRight[typed] { $$ = $typed; $$->specifier_ = CYNew CYTypeVoid(); }
+    | TypeQualifierLeftOpt[modifier] PrimitiveReference[specifier] TypeQualifierRightOpt[typed] { $$ = $typed; $$->specifier_ = $specifier; CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
+    ;
+
+TypedIdentifierYes
+    : TypedIdentifierMaybe[typed] { if ($typed->name_ == NULL) CYERR($typed->location_, "expected identifier"); $$ = $typed; }
+    ;
+
+TypedIdentifierNo
+    : TypedIdentifierMaybe[typed] { if ($typed->name_ != NULL) CYERR($typed->location_, "unexpected identifier"); $$ = $typed; }
+    ;
+
+TypedIdentifierTagged
+    : TypeQualifierLeftOpt[modifier] "struct" "{" StructFieldListOpt[fields] "}" TypeQualifierRightOpt[typed] { $$ = $typed; $$->specifier_ = CYNew CYTypeStruct(NULL, CYNew CYStructTail($fields)); CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
+    | TypeQualifierLeftOpt[modifier] "enum" ":" PrimitiveType[specifier] "{" EnumConstantListOpt[constants] "}" TypeQualifierRightOpt[typed] { $$ = $typed; $$->specifier_ = CYNew CYTypeEnum(NULL, $specifier, $constants); CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
+    ;
+
+TypedIdentifierField
+    : TypedIdentifierYes[pass] { $$ = $pass; }
+    | TypedIdentifierTagged[typed] { if ($typed->name_ == NULL) CYERR($typed->location_, "expected identifier"); $$ = $typed; }
+    ;
+
+TypedIdentifierEncoding
+    : TypedIdentifierNo[pass] { $$ = $pass; }
+    | TypedIdentifierTagged[typed] { if ($typed->name_ != NULL) CYERR($typed->location_, "unexpected identifier"); $$ = $typed; }
+    | "void" TypeSignifierNone[typed] { $$ = $typed; $$->specifier_ = CYNew CYTypeVoid(); }
+    ;
+
+TypedIdentifierDefinition
+    : TypedIdentifierYes[pass] { $$ = $pass; }
+    | TypeQualifierLeftOpt[modifier] "struct" IdentifierTypeOpt[name] "{" StructFieldListOpt[fields] "}" TypeQualifierRightOpt[typed] { if ($typed->name_ == NULL) CYERR($typed->location_, "expected identifier"); $$ = $typed; $$->specifier_ = CYNew CYTypeStruct($name, CYNew CYStructTail($fields)); CYSetLast($modifier) = $$->modifier_; $$->modifier_ = $modifier; }
+    | "void" TypeSignifier[typed] { $$ = $typed; $$->specifier_ = CYNew CYTypeVoid(); }

     ;
 
 PrimaryExpression
     ;
 
 PrimaryExpression

-    : "@encode" "(" TypedIdentifier ")" { $$ = CYNew CYEncodedType($3); }
+    : "@encode" "(" TypedIdentifierEncoding[typed] ")" { $$ = CYNew CYEncodedType($typed); }

     ;
 /* }}} */
 @end
     ;
 /* }}} */
 @end


@@ -1912,17 +2206,13 @@ PrimaryExpression
 /* Cycript (Objective-C): @class Declaration {{{ */
 ClassSuperOpt
     /* XXX: why the hell did I choose MemberExpression? */
 /* Cycript (Objective-C): @class Declaration {{{ */
 ClassSuperOpt
     /* XXX: why the hell did I choose MemberExpression? */

-    : ":" LexSetRegExp MemberExpression { $$ = $3; }
+    : ":" MemberExpression[extends] { $$ = $extends; }

     | { $$ = NULL; }
     ;
 
 ImplementationFieldListOpt
     | { $$ = NULL; }
     ;
 
 ImplementationFieldListOpt

-    : TypedIdentifier ";" ImplementationFieldListOpt { $$ = CYNew CYImplementationField($1, $3); }
-    | LexSetRegExp { $$ = NULL; }
-    ;
-
-ImplementationFields
-    : BRACE ImplementationFieldListOpt "}" { $$ = $2; }
+    : TypedIdentifierField[typed] ";" ImplementationFieldListOpt[next] { $$ = CYNew CYImplementationField($typed, $typed->name_, $next); }
+    | { $$ = NULL; }

     ;
 
 MessageScope
     ;
 
 MessageScope


@@ -1931,54 +2221,54 @@ MessageScope
     ;
 
 TypeOpt
     ;
 
 TypeOpt

-    : "(" LexSetRegExp TypedIdentifier ")" { if ($3->identifier_ != NULL) CYERR($3->location_, "unexpected identifier"); $$ = $3; }
-    | { $$ = CYNew CYTypedIdentifier(CYNew CYTypeVariable("id")); }
+    : "(" TypedIdentifierNo[type] ")" { $$ = $type; }
+    | { $$ = CYNew CYType(CYNew CYTypeVariable("id")); }

     ;
 
 MessageParameter
     ;
 
 MessageParameter

-    : Word ":" TypeOpt Identifier { $3->identifier_ = $4; $$ = CYNew CYMessageParameter($1, $3); }
+    : Word[tag] ":" TypeOpt[type] BindingIdentifier[identifier] { $$ = CYNew CYMessageParameter($tag, $type, $identifier); }

     ;
 
 MessageParameterList
     ;
 
 MessageParameterList

-    : MessageParameter MessageParameterListOpt { $1->SetNext($2); $$ = $1; }
+    : MessageParameter[parameter] MessageParameterListOpt[next] { $parameter->SetNext($next); $$ = $parameter; }

     ;
 
 MessageParameterListOpt
     ;
 
 MessageParameterListOpt

-    : MessageParameterList { $$ = $1; }
-    | { $$ = NULL; }
+    : MessageParameterList[pass] { $$ = $pass; }
+    | TypedParameterList_[formal] { if ($formal->variadic_) CYERR(@$, "unsupported variadic"); /*XXX*/ if ($formal->parameters_ != NULL) CYERR(@$, "temporarily unsupported"); $$ = NULL; }

     ;
 
 MessageParameters
     ;
 
 MessageParameters

-    : MessageParameterList { $$ = $1; }
-    | Word { $$ = CYNew CYMessageParameter($1, NULL); }
+    : MessageParameterList[pass] { $$ = $pass; }
+    | Word[tag] { $$ = CYNew CYMessageParameter($tag); }

     ;
 
 ClassMessageDeclaration
     ;
 
 ClassMessageDeclaration

-    : MessageScope TypeOpt MessageParameters BRACE LexPushSuperOn FunctionBody "}" LexPopSuper { $$ = CYNew CYMessage($1, $2, $3, $6); }
+    : MessageScope[instance] TypeOpt[type] MessageParameters[parameters] "{" LexPushSuperOn FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYMessage($instance, $type, $parameters, $code); }

     ;
 
 ClassMessageDeclarationListOpt
     ;
 
 ClassMessageDeclarationListOpt

-    : ClassMessageDeclarationListOpt ClassMessageDeclaration { $2->SetNext($1); $$ = $2; }
+    : ClassMessageDeclarationListOpt[next] ClassMessageDeclaration[message] { $message->SetNext($next); $$ = $message; }

     | { $$ = NULL; }
     ;
 
 // XXX: this should be AssignmentExpressionNoRight
 ClassProtocols
     | { $$ = NULL; }
     ;
 
 // XXX: this should be AssignmentExpressionNoRight
 ClassProtocols

-    : ShiftExpression ClassProtocolsOpt { $$ = CYNew CYProtocol($1, $2); }
+    : ShiftExpression[name] ClassProtocolsOpt[next] { $$ = CYNew CYProtocol($name, $next); }

     ;
 
 ClassProtocolsOpt
     ;
 
 ClassProtocolsOpt

-    : "," ClassProtocols { $$ = $2; }
+    : "," ClassProtocols[protocols] { $$ = $protocols; }

     | { $$ = NULL; }
     ;
 
 ClassProtocolListOpt
     | { $$ = NULL; }
     ;
 
 ClassProtocolListOpt

-    : "<" ClassProtocols ">" { $$ = $2; }
+    : "<" ClassProtocols[protocols] ">" { $$ = $protocols; }

     | { $$ = NULL; }
     ;
 
 ImplementationStatement
     | { $$ = NULL; }
     ;
 
 ImplementationStatement

-    : "@implementation" Identifier ClassSuperOpt ClassProtocolListOpt ImplementationFields ClassMessageDeclarationListOpt "@end" { $$ = CYNew CYImplementation($2, $3, $4, $5, $6); }
+    : "@implementation" Identifier[name] ClassSuperOpt[extends] ClassProtocolListOpt[protocols] "{" ImplementationFieldListOpt[fields] "}" ClassMessageDeclarationListOpt[messages] "@end" { $$ = CYNew CYImplementation($name, $extends, $protocols, $fields, $messages); }

     ;
 
 CategoryName
     ;
 
 CategoryName


@@ -1986,92 +2276,106 @@ CategoryName
     ;
 
 CategoryStatement
     ;
 
 CategoryStatement

-    : "@implementation" Identifier CategoryName ClassMessageDeclarationListOpt "@end" { $$ = CYNew CYCategory($2, $4); }
+    : "@implementation" Identifier[name] CategoryName ClassMessageDeclarationListOpt[messages] "@end" { $$ = CYNew CYCategory($name, $messages); }

     ;
 
 Statement__
     ;
 
 Statement__

-    : ImplementationStatement { $$ = $1; }
-    | CategoryStatement { $$ = $1; }
+    : ImplementationStatement[pass] { $$ = $pass; }
+    | CategoryStatement[pass] { $$ = $pass; }

     ;
 /* }}} */
 /* Cycript (Objective-C): Send Message {{{ */
 VariadicCall
     ;
 /* }}} */
 /* Cycript (Objective-C): Send Message {{{ */
 VariadicCall

-    : "," AssignmentExpressionClassic VariadicCall { $$ = CYNew CYArgument(NULL, $2, $3); }
+    : "," AssignmentExpressionClassic[value] VariadicCall[next] { $$ = CYNew CYArgument(NULL, $value, $next); }

     | { $$ = NULL; }
     ;
 
 SelectorWordOpt
     | { $$ = NULL; }
     ;
 
 SelectorWordOpt

-    : WordOpt { driver.contexts_.back().words_.push_back($1); } { $$ = $1; }
+    : WordOpt[name] { driver.contexts_.back().words_.push_back($name); } { $$ = $name; }

     | AutoComplete { driver.mode_ = CYDriver::AutoMessage; YYACCEPT; }
     ;
 
 SelectorCall_
     | AutoComplete { driver.mode_ = CYDriver::AutoMessage; YYACCEPT; }
     ;
 
 SelectorCall_

-    : SelectorCall { $$ = $1; }
-    | VariadicCall { $$ = $1; }
+    : SelectorCall[pass] { $$ = $pass; }
+    | VariadicCall[pass] { $$ = $pass; }

     ;
 
 SelectorCall
     ;
 
 SelectorCall

-    : SelectorWordOpt ":" AssignmentExpressionClassic SelectorCall_ { $$ = CYNew CYArgument($1 ?: CYNew CYWord(""), $3, $4); }
+    : SelectorWordOpt[name] ":" AssignmentExpressionClassic[value] SelectorCall_[next] { $$ = CYNew CYArgument($name ?: CYNew CYWord(""), $value, $next); }

     ;
 
 SelectorList
     ;
 
 SelectorList

-    : SelectorCall { $$ = $1; }
-    | Word { $$ = CYNew CYArgument($1, NULL); }
+    : SelectorCall[pass] { $$ = $pass; }
+    | Word[name] { $$ = CYNew CYArgument($name, NULL); }

     ;
 
 MessageExpression
     ;
 
 MessageExpression

-    : "[" LexPushInOff AssignmentExpressionClassic { driver.contexts_.push_back($3); } SelectorList "]" LexPopIn { driver.contexts_.pop_back(); } { $$ = CYNew CYSendDirect($3, $5); }
-    | "[" LexPushInOff LexSetRegExp "super" { driver.context_ = NULL; } SelectorList "]" LexPopIn { $$ = CYNew CYSendSuper($6); }
+    : "[" AssignmentExpressionClassic[self] { driver.contexts_.push_back($self); } SelectorList[arguments] "]" { driver.contexts_.pop_back(); } { $$ = CYNew CYSendDirect($self, $arguments); }
+    | "[" LexOf "super" { driver.context_ = NULL; } SelectorList[arguments] "]" { $$ = CYNew CYSendSuper($arguments); }

     ;
 
 SelectorExpression_
     ;
 
 SelectorExpression_

-    : WordOpt ":" SelectorExpressionOpt { $$ = CYNew CYSelectorPart($1, true, $3); }
+    : WordOpt[name] ":" SelectorExpressionOpt[next] { $$ = CYNew CYSelectorPart($name, true, $next); }

     ;
 
 SelectorExpression
     ;
 
 SelectorExpression

-    : SelectorExpression_ { $$ = $1; }
-    | Word { $$ = CYNew CYSelectorPart($1, false, NULL); }
+    : SelectorExpression_[pass] { $$ = $pass; }
+    | Word[name] { $$ = CYNew CYSelectorPart($name, false, NULL); }

     ;
 
 SelectorExpressionOpt
     ;
 
 SelectorExpressionOpt

-    : SelectorExpression_ { $$ = $1; }
+    : SelectorExpression_[pass] { $$ = $pass; }

     | { $$ = NULL; }
     ;
 
 PrimaryExpression
     | { $$ = NULL; }
     ;
 
 PrimaryExpression

-    : MessageExpression { $$ = $1; }
-    | "@selector" "(" LexPushInOff SelectorExpression ")" LexPopIn { $$ = CYNew CYSelector($4); }
+    : MessageExpression[pass] { $$ = $pass; }
+    | "@selector" "(" SelectorExpression[parts] ")" { $$ = CYNew CYSelector($parts); }

     ;
 /* }}} */
 @end
 
 /* Cycript: @import Directive {{{ */
 ModulePath
     ;
 /* }}} */
 @end
 
 /* Cycript: @import Directive {{{ */
 ModulePath

-    : ModulePath "." Word { $$ = CYNew CYModule($3, $1); }
-    | Word { $$ = CYNew CYModule($1); }
+    : ModulePath[next] "." Word[part] { $$ = CYNew CYModule($part, $next); }
+    | Word[part] { $$ = CYNew CYModule($part); }

     ;
 
     ;
 

-Declaration__
-    : "@import" ModulePath { $$ = CYNew CYImport($2); }
+Declaration_
+    : "@import" ModulePath[path] { $$ = CYNew CYImport($path); }

     ;
 /* }}} */
 
 @begin ObjectiveC
 /* Cycript (Objective-C): Boxed Expressions {{{ */
 BoxableExpression
     ;
 /* }}} */
 
 @begin ObjectiveC
 /* Cycript (Objective-C): Boxed Expressions {{{ */
 BoxableExpression

-    : NullLiteral { $$ = $1; }
-    | BooleanLiteral { $$ = $1; }
-    | NumericLiteral { $$ = $1; }
-    | StringLiteral { $$ = $1; }
-    | ArrayLiteral { $$ = $1; }
-    | ObjectLiteral { $$ = $1; }
-    | CoverParenthesizedExpressionAndArrowParameterList { $$ = $1; }
+    : NullLiteral[pass] { $$ = $pass; }
+    | BooleanLiteral[pass] { $$ = $pass; }
+    | NumericLiteral[pass] { $$ = $pass; }
+    | StringLiteral[pass] { $$ = $pass; }
+    | CoverParenthesizedExpressionAndArrowParameterList[pass] { $$ = $pass; }

     | "YES" { $$ = CYNew CYTrue(); }
     | "NO" { $$ = CYNew CYFalse(); }
     ;
 
     | "YES" { $$ = CYNew CYTrue(); }
     | "NO" { $$ = CYNew CYFalse(); }
     ;
 

+KeyValuePairList_
+    : "," KeyValuePairListOpt[next] { $$ = $next; }
+    | { $$ = NULL; }
+
+KeyValuePairList
+    : AssignmentExpression[key] ":" AssignmentExpression[value] KeyValuePairList_[next] { $$ = CYNew CYObjCKeyValue($key, $value, $next); }
+    ;
+
+KeyValuePairListOpt
+    : KeyValuePairList[pass] { $$ = $pass; }
+    | LexOf { $$ = NULL; }
+    ;
+

 PrimaryExpression
 PrimaryExpression

-    : "@" BoxableExpression { $$ = CYNew CYBox($2); }
+    : "@" BoxableExpression[expression] { $$ = CYNew CYBox($expression); }
+    | "@" "[" ElementListOpt[elements] "]" { $$ = CYNew CYObjCArray($elements); }
+    | "@" "{" KeyValuePairListOpt[pairs] "}" { $$ = CYNew CYObjCDictionary($pairs); }
+

     | "@YES" { $$ = CYNew CYBox(CYNew CYTrue()); }
     | "@NO" { $$ = CYNew CYBox(CYNew CYFalse()); }
     | "@true" { $$ = CYNew CYBox(CYNew CYTrue()); }
     | "@YES" { $$ = CYNew CYBox(CYNew CYTrue()); }
     | "@NO" { $$ = CYNew CYBox(CYNew CYFalse()); }
     | "@true" { $$ = CYNew CYBox(CYNew CYTrue()); }


@@ -2081,67 +2385,124 @@ PrimaryExpression
 /* }}} */
 /* Cycript (Objective-C): Block Expressions {{{ */
 PrimaryExpression
 /* }}} */
 /* Cycript (Objective-C): Block Expressions {{{ */
 PrimaryExpression

-    : "^" TypedIdentifier { if ($2->identifier_ != NULL) CYERR($2->location_, "unexpected identifier"); } BRACE LexPushInOff FunctionBody "}" LexPopIn { if (CYTypeFunctionWith *function = $2->Function()) $$ = CYNew CYObjCBlock($2, function->parameters_, $6); else CYERR($2->location_, "expected parameters"); }
+    : "^" TypedIdentifierNo[type] "{" FunctionBody[code] "}" { if (CYTypeFunctionWith *function = $type->Function()) $$ = CYNew CYObjCBlock($type, function->parameters_, $code); else CYERR($type->location_, "expected parameters"); }

     ;
 /* }}} */
 /* Cycript (Objective-C): Instance Literals {{{ */
 PrimaryExpression
     ;
 /* }}} */
 /* Cycript (Objective-C): Instance Literals {{{ */
 PrimaryExpression

-    : "#" NumericLiteral { $$ = CYNew CYInstanceLiteral($2); }
+    : "#" NumericLiteral[address] { $$ = CYNew CYInstanceLiteral($address); }

     ;
 /* }}} */
 @end
 
 @begin C
 /* Cycript (C): Pointer Indirection/Addressing {{{ */
     ;
 /* }}} */
 @end
 
 @begin C
 /* Cycript (C): Pointer Indirection/Addressing {{{ */

-LeftHandSideExpression
-    : LexSetRegExp "*" UnaryExpression { $$ = CYNew CYIndirect($3); }
+UnaryExpression_
+    : IndirectExpression[pass] { $$ = $pass; }
+    ;
+
+IndirectExpression
+    : "*" UnaryExpression[rhs] { $$ = CYNew CYIndirect($rhs); }

     ;
 
 UnaryExpression_
     ;
 
 UnaryExpression_

-    : "&" UnaryExpression { $$ = CYNew CYAddressOf($2); }
+    : "&" UnaryExpression[rhs] { $$ = CYNew CYAddressOf($rhs); }

     ;
 
 MemberAccess
     ;
 
 MemberAccess

-    : "->" "[" Expression "]" { $$ = CYNew CYIndirectMember(NULL, $3); }
-    | "->" IdentifierName { $$ = CYNew CYIndirectMember(NULL, CYNew CYString($2)); }
+    : "->" "[" Expression[property] "]" { $$ = CYNew CYIndirectMember(NULL, $property); }
+    | "->" IdentifierName[property] { $$ = CYNew CYIndirectMember(NULL, CYNew CYString($property)); }

     | "->" AutoComplete { driver.mode_ = CYDriver::AutoIndirect; YYACCEPT; }
     ;
 /* }}} */
     | "->" AutoComplete { driver.mode_ = CYDriver::AutoIndirect; YYACCEPT; }
     ;
 /* }}} */

-/* Cycript (C): auto Compatibility {{{ */
-Var_
-    : "auto"
-    ;
-/* }}} */

 /* Cycript (C): Lambda Expressions {{{ */
 TypedParameterList_
 /* Cycript (C): Lambda Expressions {{{ */
 TypedParameterList_

-    : "," TypedParameterList { $$ = $2; }
-    | { $$ = NULL; }
+    : "," TypedParameterList[parameters] { $$ = $parameters; }
+    | { $$ = CYNew CYTypedFormal(false); }

     ;
 
 TypedParameterList
     ;
 
 TypedParameterList

-    : TypedIdentifier TypedParameterList_ { $$ = CYNew CYTypedParameter($1, $2); }
+    : TypedIdentifierMaybe[typed] TypedParameterList_[formal] { CYIdentifier *identifier; if ($typed->name_ == NULL) identifier = NULL; else { identifier = $typed->name_->Identifier(); if (identifier == NULL) CYERR($typed->location_, "invalid identifier"); } $$ = $formal; $$->parameters_ = CYNew CYTypedParameter($typed, identifier, $$->parameters_); }
+    | "..." { $$ = CYNew CYTypedFormal(true); }

     ;
 
 TypedParameterListOpt
     ;
 
 TypedParameterListOpt

-    : TypedParameterList { $$ = $1; }
-    | { $$ = NULL; }
+    : TypedParameterList[pass] { $$ = $pass; }
+    | "void" { $$ = CYNew CYTypedFormal(false); }
+    | { $$ = CYNew CYTypedFormal(false); }
+    ;
+
+TypedParameters
+    : TypedParameterListOpt[formal] { if ($formal->variadic_) CYERR(@$, "unsupported variadic"); $$ = $formal->parameters_; }

     ;
 
 PrimaryExpression
     ;
 
 PrimaryExpression

-    : "[" LexPushInOff LexSetRegExp "&" LexSetRegExp "]" LexPopIn "(" LexPushInOff TypedParameterListOpt ")" LexPopIn "->" TypedIdentifier BRACE LexPushInOff FunctionBody "}" LexPopIn { $$ = CYNew CYLambda($14, $10, $17); }
+    : "[" LexOf "&" "]" "(" TypedParameters[parameters] ")" "->" TypedIdentifierNo[type] "{" FunctionBody[code] "}" { $$ = CYNew CYLambda($type, $parameters, $code); }
+    ;
+/* }}} */
+/* Cycript (C): Structure Definitions {{{ */
+IdentifierNoOf
+    : "struct" NewLineOpt { $$ = CYNew CYIdentifier("struct"); }
+    ;
+
+Statement__
+    : "struct" NewLineNot IdentifierType[name] "{" StructFieldListOpt[fields] "}" { $$ = CYNew CYStructDefinition($name, CYNew CYStructTail($fields)); }
+    ;
+
+PrimaryExpression
+    : "(" LexOf "struct" NewLineOpt IdentifierType[name] TypeQualifierRightOpt[typed] ")" { $typed->specifier_ = CYNew CYTypeReference(CYTypeReferenceStruct, $name); $$ = CYNew CYTypeExpression($typed); }
+    | "(" LexOf "struct" NewLineOpt AutoComplete { driver.mode_ = CYDriver::AutoStruct; YYACCEPT; }

     ;
 /* }}} */
 /* Cycript (C): Type Definitions {{{ */
     ;
 /* }}} */
 /* Cycript (C): Type Definitions {{{ */

+IdentifierNoOf
+    : "typedef" NewLineOpt { $$ = CYNew CYIdentifier("typedef"); }
+    ;
+
+TypeDefinition
+    : "typedef" NewLineNot TypedIdentifierDefinition[typed] TerminatorHard { CYIdentifier *identifier; if ($typed->name_ == NULL) identifier = NULL; else { identifier = $typed->name_->Identifier(); if (identifier == NULL) CYERR($typed->location_, "invalid identifier"); } $$ = CYNew CYTypeDefinition($typed, identifier); }
+    ;
+

 Statement__
 Statement__

-    : "typedef" TypedIdentifier { if ($2->identifier_ == NULL) CYERR($2->location_, "expected identifier"); } Terminator { $$ = CYNew CYTypeDefinition($2); }
+    : TypeDefinition[pass] { $$ = $pass; }
+    ;
+
+PrimaryExpression
+    : "(" LexOf "typedef" NewLineOpt TypedIdentifierEncoding[typed] ")" { $$ = CYNew CYTypeExpression($typed); }

     ;
 /* }}} */
 /* Cycript (C): extern "C" {{{ */
     ;
 /* }}} */
 /* Cycript (C): extern "C" {{{ */

+IdentifierNoOf
+    : "extern" NewLineOpt { $$ = CYNew CYIdentifier("extern"); }
+    ;
+
+ExternCStatement
+    : TypedIdentifierField[typed] TerminatorHard { CYIdentifier *identifier; if ($typed->name_ == NULL) identifier = NULL; else { identifier = $typed->name_->Identifier(); if (identifier == NULL) CYERR($typed->location_, "invalid identifier"); } $$ = CYNew CYExternalDefinition(CYNew CYString("C"), $typed, identifier); }
+    | TypeDefinition[pass] { $$ = $pass; }
+    ;
+
+ExternCStatementListOpt
+    : ExternCStatement[statement] ExternCStatementListOpt[next] { $$ = $statement; CYSetLast($$) = $next; }
+    | { $$ = NULL; }
+    ;
+
+ExternC
+    : "{" ExternCStatementListOpt[pass] "}" { $$ = $pass; }
+    | ExternCStatement[pass] { $$ = $pass; }
+    ;
+
+ABI
+    : StringLiteral[abi] { if (strcmp($abi->Value(), "C") != 0) CYERR(@abi, "unknown extern binding"); }
+    ;
+

 Statement__
 Statement__

-    : "extern" StringLiteral { if (strcmp($2->Value(), "C") != 0) CYERR(@2, "unknown extern binding"); } TypedIdentifier { if ($4->identifier_ == NULL) CYERR($4->location_, "expected identifier"); } Terminator { $$ = CYNew CYExternal($2, $4); }
+    : "extern" NewLineNot ABI[abi] ExternC[pass] { $$ = $pass; }

     ;
     ;

-/* }}} */

 
 

+PrimaryExpression
+    : "(" LexOf "extern" NewLineOpt ABI[abi] TypedIdentifierField[typed] ")" { $$ = CYNew CYExternalExpression(CYNew CYString("C"), $typed, $typed->name_); }
+    ;
+/* }}} */

 @end
 
 @begin E4X
 @end
 
 @begin E4X


@@ -2194,8 +2555,8 @@ XMLMarkup
 /* 11.1 Primary Expressions {{{ */
 PrimaryExpression
     : PropertyIdentifier { $$ = CYNew CYPropertyVariable($1); }
 /* 11.1 Primary Expressions {{{ */
 PrimaryExpression
     : PropertyIdentifier { $$ = CYNew CYPropertyVariable($1); }

-    | XMLInitialiser { $$ = $1; }
-    | XMLListInitialiser { $$ = $1; }
+    | XMLInitilizer { $$ = $1; }
+    | XMLListInitilizer { $$ = $1; }

     ;
 
 PropertyIdentifier
     ;
 
 PropertyIdentifier


@@ -2211,7 +2572,7 @@ AttributeIdentifier
 
 PropertySelector_
     : PropertySelector { $$ = $1; }
 
 PropertySelector_
     : PropertySelector { $$ = $1; }

-    | "[" LexPushInOff Expression "]" LexPopIn { $$ = CYNew CYSelector($3); }
+    | "[" Expression "]" { $$ = CYNew CYSelector($2); }

     ;
 
 PropertySelector
     ;
 
 PropertySelector


@@ -2235,7 +2596,7 @@ WildcardIdentifier
     ;
 /* }}} */
 /* 11.1.4 XML Initializer {{{ */
     ;
 /* }}} */
 /* 11.1.4 XML Initializer {{{ */

-XMLInitialiser
+XMLInitilizer

     : XMLMarkup { $$ = $1; }
     | XMLElement { $$ = $1; }
     ;
     : XMLMarkup { $$ = $1; }
     | XMLElement { $$ = $1; }
     ;


@@ -2250,7 +2611,7 @@ XMLTagContent
     ;
 
 XMLExpression
     ;
 
 XMLExpression

-    : BRACE LexPushRegExp Expression LexPop "}"
+    : "{" LexPushRegExp Expression LexPop "}"

     ;
 
 XMLTagName
     ;
 
 XMLTagName


@@ -2290,7 +2651,7 @@ XMLElementContentOpt
     ;
 /* }}} */
 /* 11.1.5 XMLList Initializer {{{ */
     ;
 /* }}} */
 /* 11.1.5 XMLList Initializer {{{ */

-XMLListInitialiser
+XMLListInitilizer

     : "<>" LexPushInOff LexPushXMLContent XMLElementContent LexPop "</>" LexPopIn { $$ = CYNew CYXMLList($4); }
     ;
 /* }}} */
     : "<>" LexPushInOff LexPushXMLContent XMLElementContent LexPop "</>" LexPopIn { $$ = CYNew CYXMLList($4); }
     ;
 /* }}} */


@@ -2320,16 +2681,16 @@ Statement__
 
 /* JavaScript FTL: Array Comprehensions {{{ */
 Comprehension
 
 /* JavaScript FTL: Array Comprehensions {{{ */
 Comprehension

-    : AssignmentExpression ComprehensionFor ComprehensionTail { $$ = CYNew CYArrayComprehension($1, $2->Modify($3)); }
+    : AssignmentExpression[expression] ComprehensionFor[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = CYNew CYArrayComprehension($expression, $comprehension); }

     ;
 
 ComprehensionFor
     ;
 
 ComprehensionFor

-    : "for" "each" "(" LexPushInOn LexicalBinding "!in" LexPopIn Expression ")" { $$ = CYNew CYForOfComprehension($5, $8); }
+    : "for" "each" "(" LexPushInOn LexBind ForBinding[binding] "!in" LexPopIn Expression[iterable] ")" { $$ = CYNew CYForOfComprehension($binding, $iterable); }

     ;
 /* }}} */
 /* JavaScript FTL: for each {{{ */
 IterationStatement
     ;
 /* }}} */
 /* JavaScript FTL: for each {{{ */
 IterationStatement

-    : "for" "each" "(" LexPushInOn ForInStatementInitializer "!in" LexPopIn Expression ")" Statement { $$ = CYNew CYForOf($5, $8, $10); }
+    : "for" "each" "(" LexPushInOn ForInStatementInitializer[initializer] "!in" LexPopIn Expression[iterable] ")" Statement[code] { $$ = CYNew CYForOf($initializer, $iterable, $code); }

     ;
 /* }}} */
 
     ;
 /* }}} */
 


@@ -2339,69 +2700,94 @@ PrimaryExpression
     ;
 
 ArrayComprehension
     ;
 
 ArrayComprehension

-    : "[" LexPushInOff Comprehension "]" LexPopIn { $$ = $3; }
+    : "[" Comprehension[comprehension] "]" { $$ = $comprehension; }

     ;
 
 Comprehension
     ;
 
 Comprehension

-    : LexSetRegExp ComprehensionFor ComprehensionTail AssignmentExpression { $$ = CYNew CYArrayComprehension($4, $2->Modify($3)); }
+    : LexOf ComprehensionFor[comprehension] ComprehensionTail[next] AssignmentExpression[expression] { $comprehension->SetNext($next); $$ = CYNew CYArrayComprehension($expression, $comprehension); }

     ;
 
 ComprehensionTail
     : { $$ = NULL; }
     ;
 
 ComprehensionTail
     : { $$ = NULL; }

-    | ComprehensionFor ComprehensionTail { $$ = $1->Modify($2); }
-    | ComprehensionIf ComprehensionTail { $$ = $1->Modify($2); }
+    | ComprehensionFor[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = $comprehension; }
+    | ComprehensionIf[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = $comprehension; }

     ;
 
 ComprehensionFor
     ;
 
 ComprehensionFor

-    : "for" "(" LexPushInOn ForBinding "!in" LexPopIn Expression ")" { $$ = CYNew CYForInComprehension($4, $7); }
-    | "for" "(" LexPushInOn ForBinding "of" LexPopIn Expression ")" { $$ = CYNew CYForOfComprehension($4, $7); }
+    : "for" "(" LexPushInOn LexBind ForBinding[binding] "!in" LexPopIn Expression[iterable] ")" { $$ = CYNew CYForInComprehension($binding, $iterable); }
+    | "for" "(" LexPushInOn LexBind ForBinding[binding] "of" LexPopIn Expression[iterable] ")" { $$ = CYNew CYForOfComprehension($binding, $iterable); }

     ;
 
 ComprehensionIf
     ;
 
 ComprehensionIf

-    : "if" "(" AssignmentExpression ")" { $$ = CYNew CYIfComprehension($3); }
-    ;
-/* }}} */
-/* JavaScript FTW: Coalesce Operator {{{ */
-ConditionalExpression
-    : LogicalORExpression "?" LexPushInOff LexSetRegExp ":" LexPopIn AssignmentExpression { $$ = CYNew CYCondition($1, $1, $7); }
+    : "if" "(" AssignmentExpression[test] ")" { $$ = CYNew CYIfComprehension($test); }

     ;
 /* }}} */
 /* JavaScript FTW: Named Arguments {{{ */
 ArgumentList
     ;
 /* }}} */
 /* JavaScript FTW: Named Arguments {{{ */
 ArgumentList

-    : LexSetRegExp Word ":" AssignmentExpression ArgumentList_ { $$ = CYNew CYArgument($2, $4, $5); }
+    : LexOf WordNoUnary[tag] ":" AssignmentExpression[value] ArgumentList_[next] { $$ = CYNew CYArgument($tag, $value, $next); }
+    ;
+/* }}} */
+/* JavaScript FTW: Subscript Access {{{ */
+MemberAccess
+    : "." "[" AssignmentExpression[property] "]" { $$ = CYNew CYSubscriptMember(NULL, $property); }

     ;
 /* }}} */
     ;
 /* }}} */

+
+/* JavaScript FTW: Java "Anonymous Inner Classes" {{{ */
+BracedParameter
+    : "{" PropertyDefinitionListOpt[properties] "}" { $$ = CYNew CYExtend(NULL, $properties); }
+    ;
+/* }}} */
+

 /* JavaScript FTW: Ruby Blocks {{{ */
 RubyProcParameterList_
 /* JavaScript FTW: Ruby Blocks {{{ */
 RubyProcParameterList_

-    : "," RubyProcParameterList { $$ = $2; }
+    : "," RubyProcParameterList[parameters] { $$ = $parameters; }

     | { $$ = NULL; }
     ;
 
 RubyProcParameterList
     | { $$ = NULL; }
     ;
 
 RubyProcParameterList

-    : Identifier RubyProcParameterList_ { $$ = CYNew CYFunctionParameter(CYNew CYDeclaration($1), $2); }
-    | { $$ = NULL; }
+    : BindingIdentifier[identifier] RubyProcParameterList_[next] { $$ = CYNew CYFunctionParameter(CYNew CYBinding($identifier), $next); }
+    | LexOf { $$ = NULL; }

     ;
 
 RubyProcParameters
     ;
 
 RubyProcParameters

-    : LexSetRegExp "|" RubyProcParameterList "|" { $$ = $3; }
-    | LexSetRegExp "||" { $$ = NULL; }
+    : "|" RubyProcParameterList[parameters] "|" { $$ = $parameters; }
+    | "||" { $$ = NULL; }

     ;
 
 RubyProcParametersOpt
     ;
 
 RubyProcParametersOpt

-    : RubyProcParameters { $$ = $1; }
+    : RubyProcParameters[pass] { $$ = $pass; }

     | { $$ = NULL; }
     ;
 
     | { $$ = NULL; }
     ;
 

-RubyProcExpression
-    : "{" RubyProcParametersOpt StatementListOpt "}" { $$ = CYNew CYRubyProc($2, $3); }
+BracedParameter
+    : ";{" RubyProcParametersOpt[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyBlock(NULL, CYNew CYRubyProc($parameters, $code)); }

     ;
 
 PrimaryExpression
     ;
 
 PrimaryExpression

-    : BRACE LexPushInOff RubyProcParameters StatementListOpt "}" LexPopIn { $$ = CYNew CYRubyProc($3, $4); }
+    : "{" RubyProcParameters[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyProc($parameters, $code); }

     ;
 
     ;
 

-PostfixExpression
-    : PostfixExpression RubyProcExpression { $$ = CYNew CYRubyBlock($1, $2); }
+BracedExpression_
+    : AccessExpression[pass] LexNewLineOrOpt { $$ = $pass; }
+    | BracedExpression_[lhs] { if (!$lhs->IsNew()) CYMAP(OpenBrace_, OpenBrace); } BracedParameter[rhs] LexNewLineOrOpt { $rhs->SetLeft($lhs); $$ = $rhs; }
+    ;
+
+BracedExpression
+    : BracedExpression_[pass] "\n" { $$ = $pass; }
+    | BracedExpression_[pass] { $$ = $pass; }
+    ;
+/* }}} */
+/* JavaScript FTW: Ruby Scopes {{{ */
+MemberAccess
+    : "::" "[" Expression[property] "]" { $$ = CYNew CYResolveMember(NULL, $property); }
+    | "::" IdentifierName[property] { $$ = CYNew CYResolveMember(NULL, CYNew CYString($property)); }
+    | "::" AutoComplete { driver.mode_ = CYDriver::AutoResolve; YYACCEPT; }
+    ;
+/* }}} */
+/* JavaScript FTW: Ruby Symbols {{{ */
+PrimaryExpression
+    : ":" Word[name] { $$ = CYNew CYSymbol($name->Word()); }

     ;
 /* }}} */
 
     ;
 /* }}} */