/* Cycript - The Truly Universal Scripting Language
 * Copyright (C) 2009-2016  Jay Freeman (saurik)
*/

/* GNU Affero General Public License, Version 3 {{{ */
/*
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.

 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
**/
/* }}} */

%code top {
#define YYSTACKEXPANDABLE 1
}

%code requires {
#include "Driver.hpp"
#include "Parser.hpp"
#include "Stack.hpp"
#include "Syntax.hpp"
#define CYNew new(driver.pool_)

@begin ObjectiveC
#include "ObjectiveC/Syntax.hpp"
@end

@begin E4X
#include "E4X/Syntax.hpp"
@end

#include "Highlight.hpp"
}

%union { bool bool_; }

%union { CYMember *access_; }
%union { CYArgument *argument_; }
%union { CYAssignment *assignment_; }
%union { CYBinding *binding_; }
%union { CYBindings *bindings_; }
%union { CYBoolean *boolean_; }
%union { CYBraced *braced_; }
%union { CYClause *clause_; }
%union { cy::Syntax::Catch *catch_; }
%union { CYClassTail *classTail_; }
%union { CYComprehension *comprehension_; }
%union { CYElement *element_; }
%union { CYEnumConstant *constant_; }
%union { CYExpression *expression_; }
%union { CYFalse *false_; }
%union { CYVariable *variable_; }
%union { CYFinally *finally_; }
%union { CYForInitializer *for_; }
%union { CYForInInitializer *forin_; }
%union { CYFunctionParameter *functionParameter_; }
%union { CYIdentifier *identifier_; }
%union { CYImportSpecifier *import_; }
%union { CYInfix *infix_; }
%union { CYLiteral *literal_; }
%union { CYMethod *method_; }
%union { CYModule *module_; }
%union { CYNull *null_; }
%union { CYNumber *number_; }
%union { CYParenthetical *parenthetical_; }
%union { CYProperty *property_; }
%union { CYPropertyName *propertyName_; }
%union { CYTypeSigning signing_; }
%union { CYSpan *span_; }
%union { CYStatement *statement_; }
%union { CYString *string_; }
%union { CYTarget *target_; }
%union { CYThis *this_; }
%union { CYTrue *true_; }
%union { CYWord *word_; }

@begin C
%union { CYTypeIntegral *integral_; }
%union { CYTypeStructField *structField_; }
%union { CYTypeModifier *modifier_; }
%union { CYTypeSpecifier *specifier_; }
%union { CYTypedFormal *typedFormal_; }
%union { CYTypedLocation *typedLocation_; }
%union { CYTypedName *typedName_; }
%union { CYTypedParameter *typedParameter_; }
%union { CYType *typedThing_; }
@end

@begin ObjectiveC
%union { CYObjCKeyValue *keyValue_; }
%union { CYImplementationField *implementationField_; }
%union { CYMessage *message_; }
%union { CYMessageParameter *messageParameter_; }
%union { CYProtocol *protocol_; }
%union { CYSelectorPart *selector_; }
@end

@begin E4X
%union { CYAttribute *attribute_; }
%union { CYPropertyIdentifier *propertyIdentifier_; }
%union { CYSelector *selector_; }
@end

%code provides {

struct YYSTYPE {
    cy::parser::semantic_type semantic_;
    hi::Value highlight_;
};

int cylex(YYSTYPE *, CYLocation *, void *);

}

%code {

#undef yylex

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_;

    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;
}

#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: "; \
    yyla.type = yylex_(&yyla.value, &yyla.location, driver); \
    YY_SYMBOL_PRINT("Next token is", yyla); \
} while (false)

#define CYMAP(to, from) do { \
    CYLEX(); \
    if (yyla.type == yytranslate_(token::from)) \
        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 CYEOK() do { \
    yyerrok; \
    driver.errors_.pop_back(); \
} while (false)

#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"

%language "C++"

%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
%defines

%define api.location.type { CYLocation }

//%glr-parser
//%expect 1

%error-verbose

%param { CYDriver &driver }

/* Token Declarations {{{ */
@begin E4X
%token XMLCDATA
%token XMLComment
%token XMLPI

%token XMLAttributeValue
%token XMLName
%token XMLTagCharacters
%token XMLText
%token XMLWhitespace
@end

@begin E4X
%token LeftRight "<>"
%token LeftSlashRight "</>"

%token SlashRight "/>"
%token LeftSlash "</"

%token PeriodPeriod ".."
@end

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

%token Ampersand "&"
%token AmpersandAmpersand "&&"
%token AmpersandEqual "&="
%token Carrot "^"
%token CarrotEqual "^="
%token Equal "="
%token EqualEqual "=="
%token EqualEqualEqual "==="
%token EqualRight "=>"
%token Exclamation "!"
%token ExclamationEqual "!="
%token ExclamationEqualEqual "!=="
%token Hyphen "-"
%token HyphenEqual "-="
%token HyphenHyphen "--"
%token HyphenRight "->"
%token Left "<"
%token LeftEqual "<="
%token LeftLeft "<<"
%token LeftLeftEqual "<<="
%token Percent "%"
%token PercentEqual "%="
%token Period "."
%token PeriodPeriodPeriod "..."
%token Pipe "|"
%token PipeEqual "|="
%token PipePipe "||"
%token Plus "+"
%token PlusEqual "+="
%token PlusPlus "++"
%token QuestionPeriod "?."
%token Right ">"
%token RightEqual ">="
%token RightRight ">>"
%token RightRightEqual ">>="
%token RightRightRight ">>>"
%token RightRightRightEqual ">>>="
%token Slash "/"
%token SlashEqual "/="
%token Star "*"
%token StarEqual "*="
%token Tilde "~"

%token Colon ":"
%token ColonColon "::"
%token Comma ","
%token Question "?"
%token SemiColon ";"
%token Pound "#"
%token NewLine "\n"
%token __ ""

%token Comment

%token OpenParen "("
%token CloseParen ")"

%token OpenBrace "{"
%token OpenBrace_ ";{"
%token OpenBrace_let "let {"
%token CloseBrace "}"

%token OpenBracket "["
%token OpenBracket_let "let ["
%token CloseBracket "]"

%token At_error_ "@error"

@begin Java
%token At_class_ "@class"
@end

@begin C
%token _typedef_ "typedef"
%token _unsigned_ "unsigned"
%token _signed_ "signed"
%token _struct_ "struct"
%token _extern_ "extern"
@end

@begin C
%token At_encode_ "@encode"
@end

@begin ObjectiveC
%token At_implementation_ "@implementation"
%token At_import_ "@import"
%token At_end_ "@end"
%token At_selector_ "@selector"
%token At_null_ "@null"
%token At_YES_ "@YES"
%token At_NO_ "@NO"
%token At_true_ "@true"
%token At_false_ "@false"
%token _YES_ "YES"
%token _NO_ "NO"
@end

%token _false_ "false"
%token _null_ "null"
%token _true_ "true"

%token _as_ "as"
%token _break_ "break"
%token _case_ "case"
%token _catch_ "catch"
%token _class_ "class"
%token _class__ ";class"
%token _const_ "const"
%token _continue_ "continue"
%token _debugger_ "debugger"
%token _default_ "default"
%token _delete_ "delete"
%token _do_ "do"
%token _else_ "else"
%token _enum_ "enum"
%token _export_ "export"
%token _extends_ "extends"
%token _finally_ "finally"
%token _for_ "for"
%token _function_ "function"
%token _function__ ";function"
%token _if_ "if"
%token _import_ "import"
%token _in_ "in"
%token _in__ "!in"
%token _Infinity_ "Infinity"
%token _instanceof_ "instanceof"
%token _new_ "new"
%token _return_ "return"
%token _super_ "super"
%token _switch_ "switch"
%token _target_ "target"
%token _this_ "this"
%token _throw_ "throw"
%token _try_ "try"
%token _typeof_ "typeof"
%token _var_ "var"
%token _void_ "void"
%token _while_ "while"
%token _with_ "with"

%token _abstract_ "abstract"
%token _await_ "await"
%token _boolean_ "boolean"
%token _byte_ "byte"
%token _char_ "char"
%token _constructor_ "constructor"
%token _double_ "double"
%token _eval_ "eval"
%token _final_ "final"
%token _float_ "float"
%token _from_ "from"
%token _get_ "get"
%token _goto_ "goto"
%token _implements_ "implements"
%token _int_ "int"
%token ___int128_ "__int128"
%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 ___proto___ "__proto__"
%token _prototype_ "prototype"
%token _public_ "public"
%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 _undefined_ "undefined"

@begin ObjectiveC
%token _bool_ "bool"
%token _BOOL_ "BOOL"
%token _id_ "id"
%token _nil_ "nil"
%token _NULL_ "NULL"
%token _SEL_ "SEL"
@end

%token _each_ "each"
%token _of_ "of"
%token _of__ "!of"

@begin E4X
%token _namespace_ "namespace"
%token _xml_ "xml"
@end

%token AutoComplete
%token YieldStar "yield *"

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

%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 <element_> ArrayElement
%type <literal_> ArrayLiteral
%type <expression_> ArrowFunction
%type <functionParameter_> ArrowParameters
%type <expression_> AssignmentExpression
%type <identifier_> BindingIdentifier
%type <identifier_> BindingIdentifierOpt
%type <bindings_> BindingList_
%type <bindings_> BindingList
%type <expression_> BitwiseANDExpression
%type <statement_> Block
%type <statement_> BlockStatement
%type <boolean_> BooleanLiteral
%type <binding_> BindingElement
%type <expression_> BitwiseORExpression
%type <expression_> BitwiseXORExpression
%type <target_> BracedExpression_
%type <target_> BracedExpression
%type <statement_> BreakStatement
%type <statement_> BreakableStatement
%type <expression_> CallExpression_
%type <target_> CallExpression
%type <clause_> CaseBlock
%type <clause_> CaseClause
%type <clause_> CaseClausesOpt
%type <catch_> Catch
%type <identifier_> CatchParameter
%type <statement_> ClassDeclaration
%type <target_> ClassExpression
%type <classTail_> ClassHeritage
%type <classTail_> ClassHeritageOpt
%type <classTail_> ClassTail
%type <target_> Comprehension
%type <comprehension_> ComprehensionFor
%type <comprehension_> ComprehensionIf
%type <comprehension_> ComprehensionTail
%type <propertyName_> ComputedPropertyName
%type <expression_> ConditionalExpression
%type <statement_> ContinueStatement
%type <statement_> ConciseBody
%type <parenthetical_> CoverParenthesizedExpressionAndArrowParameterList
%type <statement_> DebuggerStatement
%type <statement_> Declaration_
%type <statement_> Declaration
%type <clause_> DefaultClause
%type <element_> ElementList_
%type <element_> ElementList
%type <element_> ElementListOpt
%type <statement_> ElseStatementOpt
%type <for_> EmptyStatement
%type <expression_> EqualityExpression
%type <expression_> Expression
%type <expression_> ExpressionOpt
%type <for_> ExpressionStatement_
%type <statement_> ExpressionStatement
%type <statement_> ExternC
%type <statement_> ExternCStatement
%type <statement_> ExternCStatementListOpt
%type <finally_> Finally
%type <binding_> ForBinding
%type <forin_> ForDeclaration
%type <forin_> ForInStatementInitializer
%type <for_> ForStatementInitializer
%type <binding_> FormalParameter
%type <functionParameter_> FormalParameterList_
%type <functionParameter_> FormalParameterList
%type <functionParameter_> FormalParameters
%type <string_> FromClause
%type <statement_> FunctionBody
%type <statement_> FunctionDeclaration
%type <target_> FunctionExpression
%type <statement_> FunctionStatementList
%type <statement_> GeneratorBody
%type <statement_> GeneratorDeclaration
%type <target_> GeneratorExpression
%type <method_> GeneratorMethod
%type <statement_> HoistableDeclaration
%type <identifier_> Identifier
%type <identifier_> IdentifierNoOf
%type <identifier_> IdentifierType
%type <identifier_> IdentifierTypeNoOf
%type <identifier_> IdentifierTypeOpt
%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 <identifier_> LabelIdentifier
%type <statement_> LabelledItem
%type <statement_> LabelledStatement
%type <assignment_> LeftHandSideAssignment
%type <target_> LeftHandSideExpression
%type <bool_> LetOrConst
%type <binding_> LexicalBinding
%type <for_> LexicalDeclaration_
%type <statement_> LexicalDeclaration
%type <literal_> Literal
%type <propertyName_> LiteralPropertyName
%type <expression_> LogicalANDExpression
%type <expression_> LogicalORExpression
%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 <string_> ModuleSpecifier
%type <expression_> MultiplicativeExpression
%type <import_> NameSpaceImport
%type <import_> NamedImports
%type <target_> NewExpression
%type <null_> NullLiteral
%type <literal_> ObjectLiteral
%type <expression_> PostfixExpression
%type <target_> PrimaryExpression
%type <propertyName_> PropertyName
%type <property_> PropertyDefinition
%type <property_> PropertyDefinitionList_
%type <property_> PropertyDefinitionList
%type <property_> PropertyDefinitionListOpt
%type <functionParameter_> PropertySetParameterList
%type <literal_> RegularExpressionLiteral
%type <bool_> RegularExpressionSlash
%type <expression_> RelationalExpression
%type <statement_> ReturnStatement
%type <braced_> BracedParameter
%type <functionParameter_> RubyProcParameterList_
%type <functionParameter_> RubyProcParameterList
%type <functionParameter_> RubyProcParameters
%type <functionParameter_> RubyProcParametersOpt
%type <statement_> Script
%type <statement_> ScriptBody
%type <statement_> ScriptBodyOpt
%type <expression_> ShiftExpression
%type <binding_> SingleNameBinding
%type <statement_> Statement__
%type <statement_> Statement_
%type <statement_> Statement
%type <statement_> StatementList
%type <statement_> StatementListOpt
%type <statement_> StatementListItem
%type <functionParameter_> StrictFormalParameters
%type <target_> SuperCall
%type <target_> SuperProperty
%type <statement_> SwitchStatement
%type <target_> TemplateLiteral
%type <span_> TemplateSpans
%type <statement_> ThrowStatement
%type <statement_> TryStatement
%type <statement_> TypeDefinition
%type <expression_> UnaryExpression_
%type <expression_> UnaryExpression
%type <binding_> VariableDeclaration
%type <bindings_> VariableDeclarationList_
%type <bindings_> VariableDeclarationList
%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
%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 <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_> 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
%type <expression_> AssignmentExpressionClassic
%type <expression_> BoxableExpression
%type <statement_> CategoryStatement
%type <expression_> ClassSuperOpt
%type <expression_> ConditionalExpressionClassic
%type <message_> ClassMessageDeclaration
%type <message_> ClassMessageDeclarationListOpt
%type <protocol_> ClassProtocolListOpt
%type <protocol_> ClassProtocols
%type <protocol_> ClassProtocolsOpt
%type <implementationField_> ImplementationFieldListOpt
%type <statement_> ImplementationStatement
%type <keyValue_> KeyValuePairList_
%type <keyValue_> KeyValuePairList
%type <keyValue_> KeyValuePairListOpt
%type <target_> MessageExpression
%type <messageParameter_> MessageParameter
%type <messageParameter_> MessageParameters
%type <messageParameter_> MessageParameterList
%type <messageParameter_> MessageParameterListOpt
%type <bool_> MessageScope
%type <argument_> SelectorCall_
%type <argument_> SelectorCall
%type <selector_> SelectorExpression_
%type <selector_> SelectorExpression
%type <selector_> SelectorExpressionOpt
%type <argument_> SelectorList
%type <word_> SelectorWordOpt
%type <typedThing_> TypeOpt
%type <argument_> VariadicCall
@end

@begin E4X
%type <propertyIdentifier_> PropertyIdentifier_
%type <selector_> PropertySelector_
%type <selector_> PropertySelector
%type <identifier_> QualifiedIdentifier_
%type <identifier_> QualifiedIdentifier
%type <identifier_> WildcardIdentifier
%type <identifier_> XMLComment
%type <identifier_> XMLCDATA
%type <identifier_> XMLElement
%type <identifier_> XMLElementContent
%type <identifier_> XMLMarkup
%type <identifier_> XMLPI

%type <attribute_> AttributeIdentifier
/* XXX: %type <statement_> DefaultXMLNamespaceStatement */
%type <expression_> PropertyIdentifier
%type <expression_> XMLListInitilizer
%type <expression_> XMLInitilizer
@end
/* }}} */
/* Token Priorities {{{ */
%nonassoc "if"
%nonassoc "else"

%nonassoc ":"
%nonassoc "!yield"
/* }}} */

%start Program
%token MarkModule
%token MarkScript
%token MarkExpression

%%

Program
    : MarkScript Script
    | MarkModule Module
    | MarkExpression Expression[expression] { driver.context_ = $expression; }
    ;

/* Lexer State {{{ */
LexPushInOn: { driver.in_.push(true); };
LexPushInOff: { driver.in_.push(false); };
LexPopIn: { driver.in_.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(); };
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(); };

LexNewLineOrOpt
    : { CYLEX(); if (driver.newline_) { CYHLD(@$, tk::NewLine); } }
    ;

LexNewLineOrNot
    : { CYLEX(); CYHLD(@$, driver.newline_ ? tk::NewLine : tk::__); }
    ;

LexNoStar
    : { CYMAP(YieldStar, Star); }
    ;

LexNoBrace
    : { CYMAP(OpenBrace_, OpenBrace); }
    ;

LexNoClass
    : { CYMAP(_class__, _class_); }
    ;

LexNoFunction
    : { CYMAP(_function__, _function_); }
    ;

LexSetStatement
    : LexNoBrace LexNoClass LexNoFunction
    ;
/* }}} */
/* Virtual Tokens {{{ */
Var_
    : "var"
    ;
/* }}} */

/* 11.6 Names and Keywords {{{ */
IdentifierName
    : Word[pass] { $$ = $pass; }
    | "for" { $$ = CYNew CYWord("for"); }
    | "in" { $$ = CYNew CYWord("in"); }
    | "instanceof" { $$ = CYNew CYWord("instanceof"); }
    ;

WordNoUnary
    : IdentifierNoOf[pass] { $$ = $pass; }
    | "break" { $$ = CYNew CYWord("break"); }
    | "case" { $$ = CYNew CYWord("case"); }
    | "catch" { $$ = CYNew CYWord("catch"); }
    | "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"); }
    | "do" { $$ = CYNew CYWord("do"); }
    | "else" { $$ = CYNew CYWord("else"); }
    | "enum" { $$ = CYNew CYWord("enum"); }
    | "export" { $$ = CYNew CYWord("export"); }
    | "extends" { $$ = CYNew CYWord("extends"); }
    | "false" { $$ = CYNew CYWord("false"); }
    | "finally" { $$ = CYNew CYWord("finally"); }
    | "function" LexOf { $$ = CYNew CYWord("function"); }
    | "if" { $$ = CYNew CYWord("if"); }
    | "import" { $$ = CYNew CYWord("import"); }
    | "!in" { $$ = CYNew CYWord("in"); }
    | "!of" { $$ = CYNew CYWord("of"); }
    | "null" { $$ = CYNew CYWord("null"); }
    | "return" { $$ = 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"); }
    | "var" { $$ = CYNew CYWord("var"); }
    | "while" { $$ = CYNew CYWord("while"); }
    | "with" { $$ = CYNew CYWord("with"); }
    ;

Word
    : WordNoUnary[pass] { $$ = $pass; }
    | "delete" { $$ = CYNew CYWord("delete"); }
    | "typeof" { $$ = CYNew CYWord("typeof"); }
    | "void" { $$ = CYNew CYWord("void"); }
    | "yield" { $$ = CYNew CYIdentifier("yield"); }
    ;

@begin ObjectiveC
WordOpt
    : Word[pass] { $$ = $pass; }
    | { $$ = NULL; }
    ;
@end
/* }}} */
/* 11.8.1 Null Literals {{{ */
NullLiteral
    : "null" { $$ = CYNew CYNull(); }
    ;
/* }}} */
/* 11.8.2 Boolean Literals {{{ */
BooleanLiteral
    : "true" { $$ = CYNew CYTrue(); }
    | "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"); }
    ;

NewLineNot
    : LexNewLineOrNot ""
    ;

NewLineOpt
    : LexNewLineOrNot "\n"
    | NewLineNot
    ;

TerminatorSoft
    : LexNewLineOrNot "\n" StrictSemi
    | NewLineNot LexOf Terminator
    ;

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

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

TerminatorOpt
    : ";"
    | error { yyerrok; driver.errors_.pop_back(); } StrictSemi
    ;
/* }}} */

/* 12.1 Identifiers {{{ */
IdentifierReference
    : Identifier[pass] { $$ = CYNew CYVariable($pass); }
    | "yield" { $$ = CYNew CYVariable(CYNew CYIdentifier("yield")); }
    ;

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

BindingIdentifierOpt
    : BindingIdentifier[pass] { $$ = $pass; }
    | LexOf { $$ = NULL; }
    ;

LabelIdentifier
    : Identifier[pass] { $$ = $pass; }
    | "yield" { $$ = CYNew CYIdentifier("yield"); }
    ;

IdentifierTypeNoOf
    : Identifier_[pass] { $$ = $pass; }
    | "abstract" { $$ = CYNew CYIdentifier("abstract"); }
    | "as" { $$ = CYNew CYIdentifier("as"); }
    | "await" { $$ = CYNew CYIdentifier("await"); }
    | "boolean" { $$ = CYNew CYIdentifier("boolean"); }
    | "byte" { $$ = CYNew CYIdentifier("byte"); }
    | "constructor" { $$ = CYNew CYIdentifier("constructor"); }
    | "each" { $$ = CYNew CYIdentifier("each"); }
    | "eval" { $$ = CYNew CYIdentifier("eval"); }
    | "final" { $$ = CYNew CYIdentifier("final"); }
    | "from" { $$ = CYNew CYIdentifier("from"); }
    | "get" { $$ = CYNew CYIdentifier("get"); }
    | "goto" { $$ = CYNew CYIdentifier("goto"); }
    | "implements" { $$ = CYNew CYIdentifier("implements"); }
    | "Infinity" { $$ = CYNew CYIdentifier("Infinity"); }
    | "interface" { $$ = CYNew CYIdentifier("interface"); }
    | "let" { $$ = CYNew CYIdentifier("let"); }
    | "!let" LexBind LexOf { $$ = CYNew CYIdentifier("let"); }
    | "native" { $$ = CYNew CYIdentifier("native"); }
    | "package" { $$ = 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"); }
    | "synchronized" { $$ = CYNew CYIdentifier("synchronized"); }
    | "target" { $$ = CYNew CYIdentifier("target"); }
    | "throws" { $$ = CYNew CYIdentifier("throws"); }
    | "transient" { $$ = CYNew CYIdentifier("transient"); }
    | "typeid" { $$ = CYNew CYIdentifier("typeid"); }
    | "undefined" { $$ = CYNew CYIdentifier("undefined"); }
@begin ObjectiveC
    | "bool" { $$ = CYNew CYIdentifier("bool"); }
    | "BOOL" { $$ = CYNew CYIdentifier("BOOL"); }
    | "id" { $$ = CYNew CYIdentifier("id"); }
    | "SEL" { $$ = CYNew CYIdentifier("SEL"); }
@end
    ;

IdentifierType
    : IdentifierTypeNoOf[pass] { $$ = $pass; }
    | "of" { $$ = CYNew CYIdentifier("of"); }
    ;

IdentifierTypeOpt
    : IdentifierType[pass] { $$ = $pass; }
    | { $$ = NULL; }
    ;

IdentifierNoOf
    : IdentifierTypeNoOf
    | "char" { $$ = CYNew CYIdentifier("char"); }
    | "double" { $$ = CYNew CYIdentifier("double"); }
    | "float" { $$ = CYNew CYIdentifier("float"); }
    | "int" { $$ = CYNew CYIdentifier("int"); }
    | "__int128" { $$ = CYNew CYIdentifier("__int128"); }
    | "long" { $$ = CYNew CYIdentifier("long"); }
    | "short" { $$ = CYNew CYIdentifier("short"); }
    | "static" { $$ = CYNew CYIdentifier("static"); }
    | "volatile" { $$ = CYNew CYIdentifier("volatile"); }
@begin C
    | "signed" { $$ = CYNew CYIdentifier("signed"); }
    | "unsigned" { $$ = CYNew CYIdentifier("unsigned"); }
@end
@begin ObjectiveC
    | "nil" { $$ = CYNew CYIdentifier("nil"); }
    | "NO" { $$ = CYNew CYIdentifier("NO"); }
    | "NULL" { $$ = CYNew CYIdentifier("NULL"); }
    | "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(); }
    | 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
    : "(" Expression[expression] ")" { $$ = CYNew CYParenthetical($expression); }
    | "(" LexOf ")" { $$ = NULL; }
    | "(" LexOf "..." BindingIdentifier ")" { CYNOT(@$); }
    | "(" Expression "," LexOf "..." BindingIdentifier ")" { CYNOT(@$); }
    ;
/* }}} */
/* 12.2.4 Literals {{{ */
Literal
    : NullLiteral[pass] { $$ = $pass; }
    | BooleanLiteral[pass] { $$ = $pass; }
    | NumericLiteral[pass] { $$ = $pass; }
    | StringLiteral[pass] { $$ = $pass; }
    ;
/* }}} */
/* 12.2.5 Array Initializer {{{ */
ArrayLiteral
    : "[" ElementListOpt[elements] "]" { $$ = CYNew CYArray($elements); }
    ;

ArrayElement
    : AssignmentExpression[value] { $$ = CYNew CYElementValue($value); }
    | LexOf "..." AssignmentExpression[values] { $$ = CYNew CYElementSpread($values); }
    ;

ElementList_
    : "," ElementListOpt[elements] { $$ = $elements; } 
    | { $$ = NULL; }
    ;

ElementList
    : ArrayElement[element] ElementList_[next] { $$ = $element; $$->SetNext($next); }
    | LexOf "," ElementListOpt[next] { $$ = CYNew CYElementValue(NULL, $next); }
    ;

ElementListOpt
    : ElementList[pass] { $$ = $pass; }
    | LexOf { $$ = NULL; }
    ;
/* }}} */
/* 12.2.6 Object Initializer {{{ */
ObjectLiteral
    : "{" PropertyDefinitionListOpt[properties] "}" { $$ = CYNew CYObject($properties); }
    ;

PropertyDefinitionList_
    : "," PropertyDefinitionListOpt[properties] { $$ = $properties; }
    | { $$ = NULL; }
    ;

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

PropertyDefinitionListOpt
    : PropertyDefinitionList[properties] { $$ = $properties; }
    | { $$ = NULL; }
    ;

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

PropertyName
    : LiteralPropertyName[pass] { $$ = $pass; }
    | ComputedPropertyName[pass] { $$ = $pass; }
    ;

LiteralPropertyName
    : IdentifierName[pass] { $$ = $pass; }
    | StringLiteral[pass] { $$ = $pass; }
    | NumericLiteral[pass] { $$ = $pass; }
    ;

ComputedPropertyName
    : "[" AssignmentExpression[expression] "]" { $$ = CYNew CYComputed($expression); }
    ;

CoverInitializedName
    : IdentifierReference Initializer
    ;

Initializer
    : "=" AssignmentExpression[initializer] { $$ = $initializer; }
    ;

InitializerOpt
    : Initializer[pass] { $$ = $pass; }
    | { $$ = NULL; }
    ;
/* }}} */
/* 12.2.9 Template Literals {{{ */
TemplateLiteral
    : NoSubstitutionTemplate[string] { $$ = CYNew CYTemplate($string, NULL); }
    | TemplateHead[string] LexPushInOff TemplateSpans[spans] { $$ = CYNew CYTemplate($string, $spans); }
    ;

TemplateSpans
    : 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
    : "[" Expression[property] "]" { $$ = CYNew CYDirectMember(NULL, $property); }
    | "." IdentifierName[property] { $$ = CYNew CYDirectMember(NULL, CYNew CYString($property)); }
    | "." AutoComplete { driver.mode_ = CYDriver::AutoDirect; YYACCEPT; }
    | TemplateLiteral { CYNOT(@$); }
    ;

MemberExpression
    : PrimaryExpression[pass] { $$ = $pass; }
    | MemberExpression[object] { driver.context_ = $object; } MemberAccess[member] { $member->SetLeft($object); $$ = $member; }
    | SuperProperty[pass] { $$ = $pass; }
    | MetaProperty { CYNOT(@$); }
    | "new" MemberExpression[constructor] Arguments[arguments] { $$ = CYNew cy::Syntax::New($constructor, $arguments); }
    ;

SuperProperty
    : Super "[" Expression[property] "]" { $$ = CYNew CYSuperAccess($property); }
    | Super "." IdentifierName[property] { $$ = CYNew CYSuperAccess(CYNew CYString($property)); }
    ;

MetaProperty
    : NewTarget
    ;

NewTarget
    : "new" "." "target"
    ;

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

CallExpression_
    : MemberExpression[pass] { $$ = $pass; }
    | CallExpression[pass] { $$ = $pass; }
    ;

CallExpression
    : 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
    : Super Arguments[arguments] { $$ = CYNew CYSuperCall($arguments); }
    ;

Arguments
    : "(" ArgumentListOpt[arguments] ")" { $$ = $arguments; }
    ;

ArgumentList_
    : "," ArgumentList[arguments] { $$ = $arguments; }
    | { $$ = NULL; }
    ;

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

ArgumentListOpt
    : ArgumentList[pass] { $$ = $pass; }
    | LexOf { $$ = NULL; }
    ;

AccessExpression
    : NewExpression[pass] { $$ = $pass; }
    | CallExpression[pass] { $$ = $pass; }
    ;

LeftHandSideExpression
    : BracedExpression[pass] { $$ = $pass; }
    | IndirectExpression[pass] { $$ = $pass; }
    ;
/* }}} */
/* 12.4 Postfix Expressions {{{ */
PostfixExpression
    : BracedExpression[pass] { $$ = $pass; }
    | AccessExpression[lhs] LexNewLineOrOpt "++" { $$ = CYNew CYPostIncrement($lhs); }
    | AccessExpression[lhs] LexNewLineOrOpt "--" { $$ = CYNew CYPostDecrement($lhs); }
    ;
/* }}} */
/* 12.5 Unary Operators {{{ */
UnaryExpression_
    : "delete" UnaryExpression[rhs] { $$ = 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
    : PostfixExpression[expression] { $$ = $expression; }
    | UnaryExpression_[pass] { $$ = $pass; }
    ;
/* }}} */
/* 12.6 Multiplicative Operators {{{ */
MultiplicativeExpression
    : 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
    : MultiplicativeExpression[pass] { $$ = $pass; }
    | AdditiveExpression[lhs] "+" MultiplicativeExpression[rhs] { $$ = CYNew CYAdd($lhs, $rhs); }
    | AdditiveExpression[lhs] "-" MultiplicativeExpression[rhs] { $$ = CYNew CYSubtract($lhs, $rhs); }
    ;
/* }}} */
/* 12.8 Bitwise Shift Operators {{{ */
ShiftExpression
    : AdditiveExpression[pass] { $$ = $pass; }
    | ShiftExpression[lhs] "<<" AdditiveExpression[rhs] { $$ = CYNew CYShiftLeft($lhs, $rhs); }
    | ShiftExpression[lhs] ">>" AdditiveExpression[rhs] { $$ = CYNew CYShiftRightSigned($lhs, $rhs); }
    | ShiftExpression[lhs] ">>>" AdditiveExpression[rhs] { $$ = CYNew CYShiftRightUnsigned($lhs, $rhs); }
    ;
/* }}} */
/* 12.9 Relational Operators {{{ */
RelationalExpression
    : ShiftExpression[pass] { $$ = $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
    : 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] { $$ = CYNew CYNotIdentical($lhs, $rhs); }
    ;
/* }}} */
/* 12.11 Binary Bitwise Operators {{{ */
BitwiseANDExpression
    : EqualityExpression[pass] { $$ = $pass; }
    | BitwiseANDExpression[lhs] "&" EqualityExpression[rhs] { $$ = CYNew CYBitwiseAnd($lhs, $rhs); }
    ;

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

BitwiseORExpression
    : BitwiseXORExpression[pass] { $$ = $pass; }
    | BitwiseORExpression[lhs] "|" BitwiseXORExpression[rhs] { $$ = CYNew CYBitwiseOr($lhs, $rhs); }
    ;
/* }}} */
/* 12.12 Binary Logical Operators {{{ */
LogicalANDExpression
    : BitwiseORExpression[pass] { $$ = $pass; }
    | LogicalANDExpression[lhs] "&&" BitwiseORExpression[rhs] { $$ = CYNew CYLogicalAnd($lhs, $rhs); }
    ;

LogicalORExpression
    : LogicalANDExpression[pass] { $$ = $pass; }
    | LogicalORExpression[lhs] "||" LogicalANDExpression[rhs] { $$ = CYNew CYLogicalOr($lhs, $rhs); }
    ;
/* }}} */
/* 12.13 Conditional Operator ( ? : ) {{{ */
@begin ObjectiveC
ConditionalExpressionClassic
    : LogicalORExpression[pass] { $$ = $pass; }
    | LogicalORExpression[test] "?" LexPushInOff AssignmentExpression[true] ":" LexPopIn AssignmentExpressionClassic[false] { $$ = CYNew CYCondition($test, $true, $false); }
    ;
@end

ConditionalExpression
    : LogicalORExpression[pass] { $$ = $pass; }
    | LogicalORExpression[test] "?" LexPushInOff AssignmentExpression[true] ":" LexPopIn AssignmentExpression[false] { $$ = CYNew CYCondition($test, $true, $false); }
    ;
/* }}} */
/* 12.14 Assignment Operators {{{ */
LeftHandSideAssignment
    : 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
    : LexOf ConditionalExpressionClassic[pass] { $$ = $pass; }
    | LexOf LeftHandSideAssignment[assignment] AssignmentExpressionClassic[rhs] { $assignment->SetRight($rhs); $$ = $assignment; }
    ;
@end

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

ExpressionOpt
    : Expression[pass] { $$ = $pass; }
    | LexOf { $$ = NULL; }
    ;
/* }}} */

/* 13 Statements and Declarations {{{ */
Statement__
    : 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_
    : LexOf Statement__[pass] { $$ = $pass; }
    | ExpressionStatement[pass] { $$ = $pass; }
    ;

Statement
    : LexSetStatement LexLet Statement_[pass] { $$ = $pass; }
    ;

Declaration_
    : HoistableDeclaration[pass] { $$ = $pass; }
    | ClassDeclaration[pass] { $$ = $pass; }
    ;

Declaration
    : LexSetStatement LexLet LexOf Declaration_[pass] { $$ = $pass; }
    | LexSetStatement LexicalDeclaration[pass] { $$ = $pass; }
    ;

HoistableDeclaration
    : FunctionDeclaration[pass] { $$ = $pass; }
    | GeneratorDeclaration[pass] { $$ = $pass; }
    ;

BreakableStatement
    : IterationStatement[pass] { $$ = $pass; }
    | SwitchStatement[pass] { $$ = $pass; }
    ;
/* }}} */
/* 13.2 Block {{{ */
BlockStatement
    : ";{" StatementListOpt[code] "}" { $$ = CYNew CYBlock($code); }
    ;

Block
    : "{" StatementListOpt[code] "}" { $$ = $code; }
    ;

StatementList
    : StatementListItem[statement] StatementListOpt[next] { $$ = $statement; CYSetLast($$) = $next; }
    ;

StatementListOpt
    : StatementList[pass] { $$ = $pass; }
    | LexSetStatement LexLet LexOf { $$ = NULL; }
    ;

StatementListItem
    : Statement[pass] { $$ = $pass; }
    | Declaration[pass] { $$ = $pass; }
    ;
/* }}} */
/* 13.3 Let and Const Declarations {{{ */
LexicalDeclaration_
    : LetOrConst[constant] BindingList[bindings] { $$ = CYNew CYLexical($constant, $bindings); }
    ;

LexicalDeclaration
    : LexicalDeclaration_[statement] Terminator { $$ = $statement; }
    ;

LexLet
    : { CYMAP(_let__, _let_); }
    ;

LexOf
    : { CYMAP(_of__, _of_); }
    ;

LexBind
    : { CYMAP(OpenBrace_let, OpenBrace); CYMAP(OpenBracket_let, OpenBracket); }
    ;

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

BindingList_
    : "," LexBind BindingList[bindings] { $$ = $bindings; }
    | { $$ = NULL; }
    ;

BindingList
    : LexicalBinding[binding] BindingList_[next] { $$ = CYNew CYBindings($binding, $next); }
    ;

LexicalBinding
    : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
    | LexOf BindingPattern Initializer { CYNOT(@$); }
    ;
/* }}} */
/* 13.3.2 Variable Statement {{{ */
VariableStatement_
    : Var_ VariableDeclarationList[bindings] { $$ = CYNew CYVar($bindings); }
    ;

VariableStatement
    : VariableStatement_[statement] Terminator { $$ = $statement; }
    ;

VariableDeclarationList_
    : "," VariableDeclarationList[bindings] { $$ = $bindings; }
    | { $$ = NULL; }
    ;

VariableDeclarationList
    : LexBind VariableDeclaration[binding] VariableDeclarationList_[next] { $$ = CYNew CYBindings($binding, $next); }
    ;

VariableDeclaration
    : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
    | LexOf BindingPattern Initializer { CYNOT(@$); }
    ;
/* }}} */
/* 13.3.3 Destructuring Binding Patterns {{{ */
BindingPattern
    : ObjectBindingPattern
    | ArrayBindingPattern
    ;

ObjectBindingPattern
    : "let {" BindingPropertyListOpt "}"
    ;

ArrayBindingPattern
    : "let [" BindingElementListOpt "]"
    ;

BindingPropertyList_
    : "," BindingPropertyListOpt
    |
    ;

BindingPropertyList
    : BindingProperty BindingPropertyList_
    ;

BindingPropertyListOpt
    : BindingPropertyList
    | LexOf
    ;

BindingElementList
    : BindingElementOpt[element] "," BindingElementListOpt[next]
    | BindingRestElement[element]
    | BindingElement[element]
    ;

BindingElementListOpt
    : BindingElementList[pass]
    | LexBind LexOf
    ;

BindingProperty
    : SingleNameBinding
    | LexOf PropertyName ":" BindingElement
    ;

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

BindingElementOpt
    : BindingElement[pass]
    | LexBind LexOf
    ;

SingleNameBinding
    : BindingIdentifier[identifier] InitializerOpt[initializer] { $$ = CYNew CYBinding($identifier, $initializer); }
    ;

BindingRestElement
    : LexBind LexOf "..." BindingIdentifier
    ;
/* }}} */
/* 13.4 Empty Statement {{{ */
EmptyStatement
    : ";" { $$ = CYNew CYEmpty(); }
    ;
/* }}} */
/* 13.5 Expression Statement {{{ */
ExpressionStatement_
    : Expression[expression] { $$ = CYNew CYExpress($[expression]); }

ExpressionStatement
    : ExpressionStatement_[statement] Terminator { $$ = $statement; }
    ;
/* }}} */
/* 13.6 The if Statement {{{ */
ElseStatementOpt
    : "else" Statement[false] { $$ = $false; }
    | %prec "if" { $$ = NULL; }
    ;

IfStatement
    : "if" "(" Expression[test] ")" Statement[true] ElseStatementOpt[false] { $$ = CYNew CYIf($test, $true, $false); }
    ;
/* }}} */
/* 13.7 Iteration Statements {{{ */
IterationStatement
    : "do" Statement[code] "while" "(" Expression[test] ")" TerminatorOpt { $$ = 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
    : LexLet LexOf EmptyStatement[pass] { $$ = $pass; }
    | LexLet ExpressionStatement_[initializer] ";" { $$ = $initializer; }
    | LexLet LexOf VariableStatement_[initializer] ";" { $$ = $initializer; }
    | LexicalDeclaration_[initializer] ";" { $$ = $initializer; }
    ;

ForInStatementInitializer
    : LexLet LexOf BracedExpression[pass] { $$ = $pass; }
    | LexLet LexOf IndirectExpression[pass] { $$ = $pass; }
    | LexLet LexOf Var_ LexBind ForBinding[binding] { $$ = CYNew CYForVariable($binding); }
    | ForDeclaration[pass] { $$ = $pass; }
    ;

ForDeclaration
    : LetOrConst[constant] ForBinding[binding] { $$ = CYNew CYForLexical($constant, $binding); }
    ;

ForBinding
    : BindingIdentifier[identifier] { $$ = CYNew CYBinding($identifier, NULL); }
    | LexOf BindingPattern { CYNOT(@$); }
    ;
/* }}} */
/* 13.8 The continue Statement {{{ */
ContinueStatement
    : "continue" TerminatorSoft { $$ = CYNew CYContinue(NULL); }
    | "continue" NewLineNot LexOf Identifier[label] Terminator { $$ = CYNew CYContinue($label); }
    ;
/* }}} */
/* 13.9 The break Statement {{{ */
BreakStatement
    : "break" TerminatorSoft { $$ = CYNew CYBreak(NULL); }
    | "break" NewLineNot LexOf Identifier[label] Terminator { $$ = CYNew CYBreak($label); }
    ;
/* }}} */
/* 13.10 The return Statement {{{ */
ReturnStatement
    : Return TerminatorSoft { $$ = CYNew CYReturn(NULL); }
    | Return NewLineNot Expression[value] Terminator { $$ = CYNew CYReturn($value); }
    ;
/* }}} */
/* 13.11 The with Statement {{{ */
WithStatement
    : "with" "(" Expression[scope] ")" Statement[code] { $$ = CYNew CYWith($scope, $code); }
    ;
/* }}} */
/* 13.12 The switch Statement {{{ */
SwitchStatement
    : "switch" "(" Expression[value] ")" CaseBlock[clauses] { $$ = CYNew CYSwitch($value, $clauses); }
    ;

CaseBlock
    : "{" CaseClausesOpt[clauses] "}" { $$ = $clauses; }
    ;

CaseClause
    : "case" Expression[value] ":" StatementListOpt[code] { $$ = CYNew CYClause($value, $code); }
    ;

CaseClausesOpt
    : 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
    : "default" ":" StatementListOpt[code] { $$ = CYNew CYClause(NULL, $code); }
    ;
/* }}} */
/* 13.13 Labelled Statements {{{ */
LabelledStatement
    : LabelIdentifier[name] ":" LabelledItem[statement] { $$ = CYNew CYLabel($name, $statement); }
    ;

LabelledItem
    : Statement[pass] { $$ = $pass; }
    | LexSetStatement LexLet LexOf FunctionDeclaration[pass] { $$ = $pass; }
    ;
/* }}} */
/* 13.14 The throw Statement {{{ */
ThrowStatement
    : "throw"[throw] TerminatorSoft { CYERR(@throw, "throw without exception"); }
    | "throw" NewLineNot Expression[value] Terminator { $$ = CYNew cy::Syntax::Throw($value); }
    ;
/* }}} */
/* 13.15 The try Statement {{{ */
TryStatement
    : "try" Block[code] Catch[catch] { $$ = 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" "(" LexBind CatchParameter[name] ")" Block[code] { $$ = CYNew cy::Syntax::Catch($name, $code); }
    ;

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

CatchParameter
    : BindingIdentifier[pass] { $$ = $pass; }
    | LexOf BindingPattern { CYNOT(@$); }
    ;
/* }}} */
/* 13.16 The debugger Statement {{{ */
DebuggerStatement
    : "debugger" Terminator { $$ = CYNew CYDebugger(); }
    ;
/* }}} */

/* 14.1 Function Definitions {{{ */
FunctionDeclaration
    : ";function" BindingIdentifier[name] "(" FormalParameters[parameters] ")" "{" LexPushSuperOff FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYFunctionStatement($name, $parameters, $code); }
    ;

FunctionExpression
    : "function" BindingIdentifierOpt[name] "(" FormalParameters[parameters] ")" "{" LexPushSuperOff FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYFunctionExpression($name, $parameters, $code); }
    ;

StrictFormalParameters
    : FormalParameters[pass] { $$ = $pass; }
    ;

FormalParameters
    : LexBind LexOf { $$ = NULL; }
    | FormalParameterList
    ;

FormalParameterList_
    : "," FormalParameterList[parameters] { $$ = $parameters; }
    | { $$ = NULL; }
    ;

FormalParameterList
    : FunctionRestParameter { CYNOT(@$); }
    | FormalParameter[binding] FormalParameterList_[next] { $$ = CYNew CYFunctionParameter($binding, $next); }
    ;

FunctionRestParameter
    : BindingRestElement
    ;

FormalParameter
    : BindingElement[pass] { $$ = $pass; }
    ;

FunctionBody
    : LexPushYieldOff FunctionStatementList[code] LexPopYield { $$ = $code; }
    ;

FunctionStatementList
    : LexPushReturnOn StatementListOpt[code] LexPopReturn { $$ = $code; }
    ;
/* }}} */
/* 14.2 Arrow Function Definitions {{{ */
ArrowFunction
    : ArrowParameters[parameters] LexNewLineOrOpt "=>" LexNoBrace ConciseBody[code] { $$ = CYNew CYFatArrow($parameters, $code); }
    ;

ArrowParameters
    : 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
    : AssignmentExpression[expression] { $$ = CYNew CYReturn($expression); }
    | LexOf ";{" FunctionBody[code] "}" { $$ = $code; }
    ;
/* }}} */
/* 14.3 Method Definitions {{{ */
MethodDefinition
    : 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
    : FormalParameter[binding] { $$ = CYNew CYFunctionParameter($binding); }
    ;
/* }}} */
/* 14.4 Generator Function Definitions {{{ */
GeneratorMethod
    : "*" PropertyName[name] "(" StrictFormalParameters[parameters] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorMethod($name, $parameters, $code); */ }
    ;

GeneratorDeclaration
    : ";function" LexOf "*" BindingIdentifier[name] "(" FormalParameters[code] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorStatement($name, $parameters, $code); */ }
    ;

GeneratorExpression
    : "function" LexOf "*" BindingIdentifierOpt[name] "(" FormalParameters[parameters] ")" "{" GeneratorBody[code] "}" { CYNOT(@$); /* $$ = CYNew CYGeneratorExpression($name, $parameters, $code); */ }
    ;

GeneratorBody
    : LexPushYieldOn FunctionStatementList[code] LexPopYield { $$ = $code; }
    ;

YieldExpression
    : "!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
    : ";class" BindingIdentifier[name] ClassTail[tail] { $$ = CYNew CYClassStatement($name, $tail); }
    ;

ClassExpression
    : "class" BindingIdentifierOpt[name] ClassTail[tail] { $$ = CYNew CYClassExpression($name, $tail); }
    ;

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

ClassHeritage
    : "extends" AccessExpression[extends] { $$ = CYNew CYClassTail($extends); }
    ;

ClassHeritageOpt
    : ClassHeritage[pass] { $$ = $pass; }
    | { $$ = CYNew CYClassTail(NULL); }
    ;

ClassBody
    : ClassElementList
    ;

ClassBodyOpt
    : ClassBody
    |
    ;

ClassElementList
    : ClassElementListOpt ClassElement
    ;

ClassElementListOpt
    : ClassElementList
    |
    ;

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

ScriptBody
    : StatementList[pass] { $$ = $pass; }
    ;

ScriptBodyOpt
    : ScriptBody[pass] { $$ = $pass; }
    | LexSetStatement LexLet LexOf { $$ = NULL; }
    ;
/* }}} */
/* 15.2 Modules {{{ */
Module
    : ModuleBodyOpt[code] { driver.script_ = CYNew CYScript($code); }
    ;

ModuleBody
    : ModuleItemList[pass] { $$ = $pass; }
    ;

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

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

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

ModuleItem
    : LexSetStatement LexLet LexOf ImportDeclaration[pass] { $$ = $pass; }
    | LexSetStatement LexLet LexOf ExportDeclaration { CYNOT(@$); }
    | StatementListItem[pass] { $$ = $pass; }
    ;
/* }}} */
/* 15.2.2 Imports {{{ */
ImportDeclaration
    : "import" ImportClause[specifiers] FromClause[module] Terminator { $$ = CYNew CYImportDeclaration($specifiers, $module); }
    | "import" LexOf ModuleSpecifier[module] Terminator { $$ = CYNew CYImportDeclaration(NULL, $module); }
    ;

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

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

NamedImports
    : "{" ImportsListOpt[pass] "}" { $$ = $pass; }
    ;

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

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

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

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

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

ModuleSpecifier
    : StringLiteral[pass] { $$ = $pass; }
    ;

ImportedBinding
    : BindingIdentifier[pass] { $$ = $pass; }
    ;
/* }}} */
/* 15.2.3 Exports {{{ */
ExportDeclaration_
    : "*" FromClause Terminator
    | ExportClause FromClause Terminator
    | ExportClause Terminator
    | VariableStatement
    | "default" LexSetStatement LexOf HoistableDeclaration
    | "default" LexSetStatement LexOf ClassDeclaration
    | "default" LexSetStatement AssignmentExpression Terminator
    ;

ExportDeclaration
    : "export" LexSetStatement LexLet LexOf ExportDeclaration_
    | "export" Declaration
    ;

ExportClause
    : ";{" ExportsListOpt "}"
    ;

ExportsList_
    : "," ExportsListOpt
    |
    ;

ExportsList
    : ExportSpecifier ExportsList_
    ;

ExportsListOpt
    : ExportsList
    |
    ;

ExportSpecifier
    : IdentifierName
    | IdentifierName "as" IdentifierName
    ;
/* }}} */

@begin C
/* Cycript (C): Type Encoding {{{ */
TypeSignifier
    : 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; }
    ;

ParameterTail
    : TypedParameterListOpt[formal] ")" { $$ = CYNew CYTypeFunctionWith($formal->variadic_, $formal->parameters_); }
    ;

SuffixedType
    : SuffixedTypeOpt[typed] "[" AssignmentExpression[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
    : "*" TypeQualifierRightOpt[typed] { $$ = $typed; $$->modifier_ = CYNew CYTypePointerTo($$->modifier_); }
    ;

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

TypeQualifierLeftOpt
    : TypeQualifierLeft[pass] { $$ = $pass; }
    | { $$ = NULL; }
    ;

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

TypeQualifierRightOpt
    : TypeQualifierRight[pass] { $$ = $pass; }
    | TypeSignifierOpt[pass] { $$ = $pass; }
    ;

IntegerType
    : "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
    : 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
    : IdentifierType[name] { $$ = CYNew CYTypeVariable($name); }
    | IntegerType[pass] { $$ = $pass; }
    | TypeSigning[signing] "char" { $$ = CYNew CYTypeCharacter($signing); }
    | TypeSigning[signing] "__int128" { $$ = CYNew CYTypeInt128($signing); }
    | "float" { $$ = CYNew CYTypeFloating(0); }
    | "double" { $$ = CYNew CYTypeFloating(1); }
    | "long" "double" { $$ = CYNew CYTypeFloating(2); }
    | "void" { $$ = CYNew CYTypeVoid(); }
    ;

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
    : 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; }
    ;

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; }
    ;

PrimaryExpression
    : "@encode" "(" TypedIdentifierEncoding[typed] ")" { $$ = CYNew CYEncodedType($typed); }
    ;
/* }}} */
@end

@begin ObjectiveC
/* Cycript (Objective-C): @class Declaration {{{ */
ClassSuperOpt
    /* XXX: why the hell did I choose MemberExpression? */
    : ":" MemberExpression[extends] { $$ = $extends; }
    | { $$ = NULL; }
    ;

ImplementationFieldListOpt
    : TypedIdentifierField[typed] ";" ImplementationFieldListOpt[next] { $$ = CYNew CYImplementationField($typed, $typed->name_, $next); }
    | { $$ = NULL; }
    ;

MessageScope
    : "+" { $$ = false; }
    | "-" { $$ = true; }
    ;

TypeOpt
    : "(" TypedIdentifierNo[type] ")" { $$ = $type; }
    | { $$ = CYNew CYType(CYNew CYTypeVariable("id")); }
    ;

MessageParameter
    : Word[tag] ":" TypeOpt[type] BindingIdentifier[identifier] { $$ = CYNew CYMessageParameter($tag, $type, $identifier); }
    ;

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

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

MessageParameters
    : MessageParameterList[pass] { $$ = $pass; }
    | Word[tag] { $$ = CYNew CYMessageParameter($tag); }
    ;

ClassMessageDeclaration
    : MessageScope[instance] TypeOpt[type] MessageParameters[parameters] "{" LexPushSuperOn FunctionBody[code] "}" LexPopSuper { $$ = CYNew CYMessage($instance, $type, $parameters, $code); }
    ;

ClassMessageDeclarationListOpt
    : ClassMessageDeclarationListOpt[next] ClassMessageDeclaration[message] { $message->SetNext($next); $$ = $message; }
    | { $$ = NULL; }
    ;

// XXX: this should be AssignmentExpressionNoRight
ClassProtocols
    : ShiftExpression[name] ClassProtocolsOpt[next] { $$ = CYNew CYProtocol($name, $next); }
    ;

ClassProtocolsOpt
    : "," ClassProtocols[protocols] { $$ = $protocols; }
    | { $$ = NULL; }
    ;

ClassProtocolListOpt
    : "<" ClassProtocols[protocols] ">" { $$ = $protocols; }
    | { $$ = NULL; }
    ;

ImplementationStatement
    : "@implementation" Identifier[name] ClassSuperOpt[extends] ClassProtocolListOpt[protocols] "{" ImplementationFieldListOpt[fields] "}" ClassMessageDeclarationListOpt[messages] "@end" { $$ = CYNew CYImplementation($name, $extends, $protocols, $fields, $messages); }
    ;

CategoryName
    : "(" WordOpt ")"
    ;

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

Statement__
    : ImplementationStatement[pass] { $$ = $pass; }
    | CategoryStatement[pass] { $$ = $pass; }
    ;
/* }}} */
/* Cycript (Objective-C): Send Message {{{ */
VariadicCall
    : "," AssignmentExpressionClassic[value] VariadicCall[next] { $$ = CYNew CYArgument(NULL, $value, $next); }
    | { $$ = NULL; }
    ;

SelectorWordOpt
    : WordOpt[name] { driver.contexts_.back().words_.push_back($name); } { $$ = $name; }
    | AutoComplete { driver.mode_ = CYDriver::AutoMessage; YYACCEPT; }
    ;

SelectorCall_
    : SelectorCall[pass] { $$ = $pass; }
    | VariadicCall[pass] { $$ = $pass; }
    ;

SelectorCall
    : SelectorWordOpt[name] ":" AssignmentExpressionClassic[value] SelectorCall_[next] { $$ = CYNew CYArgument($name ?: CYNew CYWord(""), $value, $next); }
    ;

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

MessageExpression
    : "[" 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_
    : WordOpt[name] ":" SelectorExpressionOpt[next] { $$ = CYNew CYSelectorPart($name, true, $next); }
    ;

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

SelectorExpressionOpt
    : SelectorExpression_[pass] { $$ = $pass; }
    | { $$ = NULL; }
    ;

PrimaryExpression
    : MessageExpression[pass] { $$ = $pass; }
    | "@selector" "(" SelectorExpression[parts] ")" { $$ = CYNew CYSelector($parts); }
    ;
/* }}} */
@end

/* Cycript: @import Directive {{{ */
ModulePath
    : ModulePath[next] "." Word[part] { $$ = CYNew CYModule($part, $next); }
    | Word[part] { $$ = CYNew CYModule($part); }
    ;

Declaration_
    : "@import" ModulePath[path] { $$ = CYNew CYImport($path); }
    ;
/* }}} */

@begin ObjectiveC
/* Cycript (Objective-C): Boxed Expressions {{{ */
BoxableExpression
    : NullLiteral[pass] { $$ = $pass; }
    | BooleanLiteral[pass] { $$ = $pass; }
    | NumericLiteral[pass] { $$ = $pass; }
    | StringLiteral[pass] { $$ = $pass; }
    | CoverParenthesizedExpressionAndArrowParameterList[pass] { $$ = $pass; }
    | "YES" { $$ = 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
    : "@" 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" { $$ = CYNew CYBox(CYNew CYTrue()); }
    | "@false" { $$ = CYNew CYBox(CYNew CYFalse()); }
    | "@null" { $$ = CYNew CYBox(CYNew CYNull()); }
    ;
/* }}} */
/* Cycript (Objective-C): Block Expressions {{{ */
PrimaryExpression
    : "^" TypedIdentifierNo[type] "{" FunctionBody[code] "}" { if (CYTypeFunctionWith *function = $type->Function()) $$ = CYNew CYObjCBlock($type, function->parameters_, $code); else CYERR($type->location_, "expected parameters"); }
    ;
/* }}} */
/* Cycript (Objective-C): Instance Literals {{{ */
PrimaryExpression
    : "#" NumericLiteral[address] { $$ = CYNew CYInstanceLiteral($address); }
    ;
/* }}} */
@end

@begin C
/* Cycript (C): Pointer Indirection/Addressing {{{ */
UnaryExpression_
    : IndirectExpression[pass] { $$ = $pass; }
    ;

IndirectExpression
    : "*" UnaryExpression[rhs] { $$ = CYNew CYIndirect($rhs); }
    ;

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

MemberAccess
    : "->" "[" Expression[property] "]" { $$ = CYNew CYIndirectMember(NULL, $property); }
    | "->" IdentifierName[property] { $$ = CYNew CYIndirectMember(NULL, CYNew CYString($property)); }
    | "->" AutoComplete { driver.mode_ = CYDriver::AutoIndirect; YYACCEPT; }
    ;
/* }}} */
/* Cycript (C): Lambda Expressions {{{ */
TypedParameterList_
    : "," TypedParameterList[parameters] { $$ = $parameters; }
    | { $$ = CYNew CYTypedFormal(false); }
    ;

TypedParameterList
    : 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
    : TypedParameterList[pass] { $$ = $pass; }
    | { $$ = CYNew CYTypedFormal(false); }
    ;

TypedParameters
    : TypedParameterListOpt[formal] { if ($formal->variadic_) CYERR(@$, "unsupported variadic"); $$ = $formal->parameters_; }
    ;

PrimaryExpression
    : "[" 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); $$ = CYNew CYTypeExpression($typed); }
    | "(" LexOf "struct" NewLineOpt AutoComplete { driver.mode_ = CYDriver::AutoStruct; YYACCEPT; }
    ;
/* }}} */
/* Cycript (C): Type Definitions {{{ */
IdentifierNoOf
    : "typedef" NewLineOpt { $$ = 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__
    : TypeDefinition[pass] { $$ = $pass; }
    ;

PrimaryExpression
    : "(" LexOf "typedef" NewLineOpt TypedIdentifierEncoding[typed] ")" { $$ = CYNew CYTypeExpression($typed); }
    ;
/* }}} */
/* Cycript (C): extern "C" {{{ */
IdentifierNoOf
    : "extern" NewLineOpt { $$ = 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__
    : "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
/* Lexer State {{{ */
LexPushRegExp
    : { driver.PushCondition(CYDriver::RegExpCondition); }
    ;

LexPushXMLContent
    : { driver.PushCondition(CYDriver::XMLContentCondition); }
    ;

LexPushXMLTag
    : { driver.PushCondition(CYDriver::XMLTagCondition); }
    ;

LexPop
    : { driver.PopCondition(); }
    ;

LexSetXMLContent
    : { driver.SetCondition(CYDriver::XMLContentCondition); }
    ;

LexSetXMLTag
    : { driver.SetCondition(CYDriver::XMLTagCondition); }
    ;
/* }}} */
/* Virtual Tokens {{{ */
XMLWhitespaceOpt
    : XMLWhitespace
    |
    ;
/* }}} */

/* 8.1 Context Keywords {{{ */
Identifier
    : "namespace" { $$ = CYNew CYIdentifier("namespace"); }
    | "xml" { $$ = CYNew CYIdentifier("xml"); }
    ;
/* }}} */
/* 8.3 XML Initializer Input Elements {{{ */
XMLMarkup
    : XMLComment { $$ = $1; }
    | XMLCDATA { $$ = $1; }
    | XMLPI { $$ = $1; }
    ;
/* }}} */

/* 11.1 Primary Expressions {{{ */
PrimaryExpression
    : PropertyIdentifier { $$ = CYNew CYPropertyVariable($1); }
    | XMLInitilizer { $$ = $1; }
    | XMLListInitilizer { $$ = $1; }
    ;

PropertyIdentifier
    : AttributeIdentifier { $$ = $1; }
    | QualifiedIdentifier { $$ = $1; }
    | WildcardIdentifier { $$ = $1; }
    ;
/* }}} */
/* 11.1.1 Attribute Identifiers {{{ */
AttributeIdentifier
    : "@" QualifiedIdentifier_ { $$ = CYNew CYAttribute($2); }
    ;

PropertySelector_
    : PropertySelector { $$ = $1; }
    | "[" Expression "]" { $$ = CYNew CYSelector($2); }
    ;

PropertySelector
    : Identifier { $$ = CYNew CYSelector($1); }
    | WildcardIdentifier { $$ = $1; }
    ;
/* }}} */
/* 11.1.2 Qualified Identifiers {{{ */
QualifiedIdentifier_
    : PropertySelector_ { $$ = CYNew CYQualified(NULL, $1); }
    | QualifiedIdentifier { $$ = $1; }
    ;

QualifiedIdentifier
    : PropertySelector "::" PropertySelector_ { $$ = CYNew CYQualified($1, $3); }
    ;
/* }}} */
/* 11.1.3 Wildcard Identifiers {{{ */
WildcardIdentifier
    : "*" { $$ = CYNew CYWildcard(); }
    ;
/* }}} */
/* 11.1.4 XML Initializer {{{ */
XMLInitilizer
    : XMLMarkup { $$ = $1; }
    | XMLElement { $$ = $1; }
    ;

XMLElement
    : "<" LexPushInOff XMLTagContent LexPop "/>" LexPopIn
    | "<" LexPushInOff XMLTagContent ">" LexSetXMLContent XMLElementContentOpt "</" LexSetXMLTag XMLTagName XMLWhitespaceOpt LexPop ">" LexPopIn
    ;

XMLTagContent
    : LexPushXMLTag XMLTagName XMLAttributes
    ;

XMLExpression
    : "{" LexPushRegExp Expression LexPop "}"
    ;

XMLTagName
    : XMLExpression
    | XMLName
    ;

XMLAttributes_
    : XMLAttributes_ XMLAttribute
    |
    ;

XMLAttributes
    : XMLAttributes_ XMLWhitespace XMLExpression XMLWhitespaceOpt
    | XMLAttributes_ XMLWhitespaceOpt
    ;

XMLAttributeValue_
    : XMLExpression
    | XMLAttributeValue
    ;

XMLAttribute
    : XMLWhitespace XMLName XMLWhitespaceOpt "=" XMLWhitespaceOpt XMLAttributeValue_
    ;

XMLElementContent
    : XMLExpression XMLElementContentOpt
    | XMLMarkup XMLElementContentOpt
    | XMLText XMLElementContentOpt
    | XMLElement XMLElementContentOpt
    ;

XMLElementContentOpt
    : XMLElementContent
    |
    ;
/* }}} */
/* 11.1.5 XMLList Initializer {{{ */
XMLListInitilizer
    : "<>" LexPushInOff LexPushXMLContent XMLElementContent LexPop "</>" LexPopIn { $$ = CYNew CYXMLList($4); }
    ;
/* }}} */

/* 11.2 Left-Hand-Side Expressions {{{ */
PropertyIdentifier_
    : Identifier { $$ = $1; }
    | PropertyIdentifier { $$ = $1; }
    ;

MemberAccess
    : "." PropertyIdentifier { $$ = CYNew CYPropertyMember(NULL, $2); }
    | ".." PropertyIdentifier_ { $$ = CYNew CYDescendantMember(NULL, $2); }
    | "." "(" Expression ")" { $$ = CYNew CYFilteringPredicate(NULL, $3); }
    ;
/* }}} */
/* 12.1 The default xml namespace Statement {{{ */
/* XXX: DefaultXMLNamespaceStatement
    : "default" "xml" "namespace" "=" Expression Terminator { $$ = CYNew CYDefaultXMLNamespace($5); }
    ;

Statement__
    : DefaultXMLNamespaceStatement { $$ = $1; }
    ; */
/* }}} */
@end

/* JavaScript FTL: Array Comprehensions {{{ */
Comprehension
    : AssignmentExpression[expression] ComprehensionFor[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = CYNew CYArrayComprehension($expression, $comprehension); }
    ;

ComprehensionFor
    : "for" "each" "(" LexPushInOn LexBind ForBinding[binding] "!in" LexPopIn Expression[iterable] ")" { $$ = CYNew CYForOfComprehension($binding, $iterable); }
    ;
/* }}} */
/* JavaScript FTL: for each {{{ */
IterationStatement
    : "for" "each" "(" LexPushInOn ForInStatementInitializer[initializer] "!in" LexPopIn Expression[iterable] ")" Statement[code] { $$ = CYNew CYForOf($initializer, $iterable, $code); }
    ;
/* }}} */

/* JavaScript FTW: Array Comprehensions {{{ */
PrimaryExpression
    : ArrayComprehension
    ;

ArrayComprehension
    : "[" Comprehension[comprehension] "]" { $$ = $comprehension; }
    ;

Comprehension
    : LexOf ComprehensionFor[comprehension] ComprehensionTail[next] AssignmentExpression[expression] { $comprehension->SetNext($next); $$ = CYNew CYArrayComprehension($expression, $comprehension); }
    ;

ComprehensionTail
    : { $$ = NULL; }
    | ComprehensionFor[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = $comprehension; }
    | ComprehensionIf[comprehension] ComprehensionTail[next] { $comprehension->SetNext($next); $$ = $comprehension; }
    ;

ComprehensionFor
    : "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
    : "if" "(" AssignmentExpression[test] ")" { $$ = CYNew CYIfComprehension($test); }
    ;
/* }}} */
/* JavaScript FTW: Named Arguments {{{ */
ArgumentList
    : LexOf WordNoUnary[tag] ":" AssignmentExpression[value] ArgumentList_[next] { $$ = CYNew CYArgument($tag, $value, $next); }
    ;
/* }}} */
/* JavaScript FTW: Subscript Access {{{ */
MemberAccess
    : "." "[" AssignmentExpression[property] "]" { $$ = CYNew CYSubscriptMember(NULL, $property); }
    ;
/* }}} */
/* JavaScript FTW: Undefined Monad {{{ */
MemberAccess
    : "?." IdentifierName[property] { $$ = CYNew CYAttemptMember(NULL, CYNew CYString($property)); }
    | "?." AutoComplete { driver.mode_ = CYDriver::AutoDirect; YYACCEPT; }
    ;
/* }}} */

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

/* JavaScript FTW: Ruby Blocks {{{ */
RubyProcParameterList_
    : "," RubyProcParameterList[parameters] { $$ = $parameters; }
    | { $$ = NULL; }
    ;

RubyProcParameterList
    : BindingIdentifier[identifier] RubyProcParameterList_[next] { $$ = CYNew CYFunctionParameter(CYNew CYBinding($identifier), $next); }
    | LexOf { $$ = NULL; }
    ;

RubyProcParameters
    : "|" RubyProcParameterList[parameters] "|" { $$ = $parameters; }
    | "||" { $$ = NULL; }
    ;

RubyProcParametersOpt
    : RubyProcParameters[pass] { $$ = $pass; }
    | { $$ = NULL; }
    ;

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

PrimaryExpression
    : "{" RubyProcParameters[parameters] StatementListOpt[code] "}" { $$ = CYNew CYRubyProc($parameters, $code); }
    ;

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()); }
    ;
/* }}} */

%%

bool CYDriver::Parse(CYMark mark) {
    mark_ = mark;
    CYLocal<CYPool> local(&pool_);
    cy::parser parser(*this);
#ifdef YYDEBUG
    parser.set_debug_level(debug_);
#endif
    return parser.parse() != 0;
}

void CYDriver::Warning(const cy::parser::location_type &location, const char *message) {
    if (!strict_)
        return;

    CYDriver::Error error;
    error.warning_ = true;
    error.location_ = location;
    error.message_ = message;
    errors_.push_back(error);
}

void cy::parser::error(const cy::parser::location_type &location, const std::string &message) {
    CYDriver::Error error;
    error.warning_ = false;
    error.location_ = location;
    error.message_ = message;
    driver.errors_.push_back(error);
}