[apple/javascriptcore.git] / parser / SyntaxChecker.h

/*
 * Copyright (C) 2010, 2013 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef SyntaxChecker_h
#define SyntaxChecker_h

#include "Lexer.h"
#include <yarr/YarrSyntaxChecker.h>

namespace JSC {
    
class SyntaxChecker {
public:
    struct BinaryExprContext {
        BinaryExprContext(SyntaxChecker& context)
            : m_context(&context)
        {
            m_context->m_topBinaryExprs.append(m_context->m_topBinaryExpr);
            m_context->m_topBinaryExpr = 0;
        }
        ~BinaryExprContext()
        {
            m_context->m_topBinaryExpr = m_context->m_topBinaryExprs.last();
            m_context->m_topBinaryExprs.removeLast();
        }
    private:
        SyntaxChecker* m_context;
    };
    struct UnaryExprContext {
        UnaryExprContext(SyntaxChecker& context)
            : m_context(&context)
        {
            m_context->m_topUnaryTokens.append(m_context->m_topUnaryToken);
            m_context->m_topUnaryToken = 0;
        }
        ~UnaryExprContext()
        {
            m_context->m_topUnaryToken = m_context->m_topUnaryTokens.last();
            m_context->m_topUnaryTokens.removeLast();
        }
    private:
        SyntaxChecker* m_context;
    };
    
    SyntaxChecker(VM* , void*)
    {
    }

    typedef SyntaxChecker FunctionBodyBuilder;
    enum { NoneExpr = 0,
        ResolveEvalExpr, ResolveExpr, NumberExpr, StringExpr,
        ThisExpr, NullExpr, BoolExpr, RegExpExpr, ObjectLiteralExpr,
        FunctionExpr, BracketExpr, DotExpr, CallExpr,
        NewExpr, PreExpr, PostExpr, UnaryExpr, BinaryExpr,
        ConditionalExpr, AssignmentExpr, TypeofExpr,
        DeleteExpr, ArrayLiteralExpr };
    typedef int ExpressionType;

    typedef ExpressionType Expression;
    typedef int SourceElements;
    typedef int Arguments;
    typedef ExpressionType Comma;
    struct Property {
        ALWAYS_INLINE Property(void* = 0)
            : type((PropertyNode::Type)0)
        {
        }
        ALWAYS_INLINE Property(const Identifier* ident, PropertyNode::Type ty)
        : name(ident)
        , type(ty)
        {
        }
        ALWAYS_INLINE Property(PropertyNode::Type ty)
            : name(0)
            , type(ty)
        {
        }
        ALWAYS_INLINE bool operator!() { return !type; }
        const Identifier* name;
        PropertyNode::Type type;
    };
    typedef int PropertyList;
    typedef int ElementList;
    typedef int ArgumentsList;
    typedef int FormalParameterList;
    typedef int FunctionBody;
    typedef int Statement;
    typedef int ClauseList;
    typedef int Clause;
    typedef int ConstDeclList;
    typedef int BinaryOperand;
    
    static const bool CreatesAST = false;
    static const bool NeedsFreeVariableInfo = false;
    static const bool CanUseFunctionCache = true;
    static const unsigned DontBuildKeywords = LexexFlagsDontBuildKeywords;
    static const unsigned DontBuildStrings = LexerFlagsDontBuildStrings;

    int createSourceElements() { return 1; }
    ExpressionType makeFunctionCallNode(const JSTokenLocation&, int, int, int, int, int, int, int) { return CallExpr; }
    void appendToComma(ExpressionType& base, ExpressionType right) { base = right; }
    ExpressionType createCommaExpr(const JSTokenLocation&, ExpressionType, ExpressionType right) { return right; }
    ExpressionType makeAssignNode(const JSTokenLocation&, ExpressionType, Operator, ExpressionType, bool, bool, int, int, int, int, int) { return AssignmentExpr; }
    ExpressionType makePrefixNode(const JSTokenLocation&, ExpressionType, Operator, int, int, int, int, int) { return PreExpr; }
    ExpressionType makePostfixNode(const JSTokenLocation&, ExpressionType, Operator, int, int, int, int, int) { return PostExpr; }
    ExpressionType makeTypeOfNode(const JSTokenLocation&, ExpressionType) { return TypeofExpr; }
    ExpressionType makeDeleteNode(const JSTokenLocation&, ExpressionType, int, int, int, int, int) { return DeleteExpr; }
    ExpressionType makeNegateNode(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
    ExpressionType makeBitwiseNotNode(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
    ExpressionType createLogicalNot(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
    ExpressionType createUnaryPlus(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
    ExpressionType createVoid(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
    ExpressionType thisExpr(const JSTokenLocation&) { return ThisExpr; }
    ExpressionType createResolve(const JSTokenLocation&, const Identifier*, int, int, int) { return ResolveExpr; }
    ExpressionType createObjectLiteral(const JSTokenLocation&) { return ObjectLiteralExpr; }
    ExpressionType createObjectLiteral(const JSTokenLocation&, int) { return ObjectLiteralExpr; }
    ExpressionType createArray(const JSTokenLocation&, int) { return ArrayLiteralExpr; }
    ExpressionType createArray(const JSTokenLocation&, int, int) { return ArrayLiteralExpr; }
    ExpressionType createNumberExpr(const JSTokenLocation&, double) { return NumberExpr; }
    ExpressionType createString(const JSTokenLocation&, const Identifier*) { return StringExpr; }
    ExpressionType createBoolean(const JSTokenLocation&, bool) { return BoolExpr; }
    ExpressionType createNull(const JSTokenLocation&) { return NullExpr; }
    ExpressionType createBracketAccess(const JSTokenLocation&, ExpressionType, ExpressionType, bool, int, int, int, int, int) { return BracketExpr; }
    ExpressionType createDotAccess(const JSTokenLocation&, ExpressionType, const Identifier*, int, int, int, int, int) { return DotExpr; }
    ExpressionType createRegExp(const JSTokenLocation&, const Identifier& pattern, const Identifier&, int, int, int) { return Yarr::checkSyntax(pattern.string()) ? 0 : RegExpExpr; }
    ExpressionType createNewExpr(const JSTokenLocation&, ExpressionType, int, int, int, int, int, int) { return NewExpr; }
    ExpressionType createNewExpr(const JSTokenLocation&, ExpressionType, int, int, int, int) { return NewExpr; }
    ExpressionType createConditionalExpr(const JSTokenLocation&, ExpressionType, ExpressionType, ExpressionType) { return ConditionalExpr; }
    ExpressionType createAssignResolve(const JSTokenLocation&, const Identifier&, ExpressionType, int, int, int, int, int) { return AssignmentExpr; }
    ExpressionType createFunctionExpr(const JSTokenLocation&, const Identifier*, int, int, int, int, int, int, int) { return FunctionExpr; }
    int createFunctionBody(const JSTokenLocation&, const JSTokenLocation&, int, bool) { return 1; }
    void setFunctionStart(int, int) { }
    int createArguments() { return 1; }
    int createArguments(int) { return 1; }
    int createArgumentsList(const JSTokenLocation&, int) { return 1; }
    int createArgumentsList(const JSTokenLocation&, int, int) { return 1; }
    template <bool complete> Property createProperty(const Identifier* name, int, PropertyNode::Type type)
    {
        if (!complete)
            return Property(type);
        ASSERT(name);
        return Property(name, type);
    }
    template <bool complete> Property createProperty(VM* vm, double name, int, PropertyNode::Type type)
    {
        if (!complete)
            return Property(type);
        return Property(&vm->parserArena->identifierArena().makeNumericIdentifier(vm, name), type);
    }
    int createPropertyList(const JSTokenLocation&, Property) { return 1; }
    int createPropertyList(const JSTokenLocation&, Property, int) { return 1; }
    int createElementList(int, int) { return 1; }
    int createElementList(int, int, int) { return 1; }
    int createFormalParameterList(const Identifier&) { return 1; }
    int createFormalParameterList(int, const Identifier&) { return 1; }
    int createClause(int, int) { return 1; }
    int createClauseList(int) { return 1; }
    int createClauseList(int, int) { return 1; }
    void setUsesArguments(int) { }
    int createFuncDeclStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int, int, int) { return 1; }
    int createBlockStatement(const JSTokenLocation&, int, int, int) { return 1; }
    int createExprStatement(const JSTokenLocation&, int, int, int) { return 1; }
    int createIfStatement(const JSTokenLocation&, int, int, int, int) { return 1; }
    int createIfStatement(const JSTokenLocation&, int, int, int, int, int) { return 1; }
    int createForLoop(const JSTokenLocation&, int, int, int, int, int, int) { return 1; }
    int createForInLoop(const JSTokenLocation&, const Identifier*, int, int, int, int, int, int, int, int, int, int, int, int) { return 1; }
    int createForInLoop(const JSTokenLocation&, int, int, int, int, int, int, int, int, int, int) { return 1; }
    int createEmptyStatement(const JSTokenLocation&) { return 1; }
    int createVarStatement(const JSTokenLocation&, int, int, int) { return 1; }
    int createReturnStatement(const JSTokenLocation&, int, int, int, int, int, int, int) { return 1; }
    int createBreakStatement(const JSTokenLocation&, int, int, int, int, int) { return 1; }
    int createBreakStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int) { return 1; }
    int createContinueStatement(const JSTokenLocation&, int, int, int, int, int) { return 1; }
    int createContinueStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int) { return 1; }
    int createTryStatement(const JSTokenLocation&, int, const Identifier*, int, int, int, int) { return 1; }
    int createSwitchStatement(const JSTokenLocation&, int, int, int, int, int, int) { return 1; }
    int createWhileStatement(const JSTokenLocation&, int, int, int, int) { return 1; }
    int createWithStatement(const JSTokenLocation&, int, int, int, int, int, int, int, int) { return 1; }
    int createDoWhileStatement(const JSTokenLocation&, int, int, int, int) { return 1; }
    int createLabelStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int) { return 1; }
    int createThrowStatement(const JSTokenLocation&, int, int, int, int, int, int, int) { return 1; }
    int createDebugger(const JSTokenLocation&, int, int) { return 1; }
    int createConstStatement(const JSTokenLocation&, int, int, int) { return 1; }
    int appendConstDecl(const JSTokenLocation&, int, const Identifier*, int) { return 1; }
    template <bool strict> Property createGetterOrSetterProperty(const JSTokenLocation&, PropertyNode::Type type, const Identifier* name, int, int, int, int, int, int, int)
    {
        ASSERT(name);
        if (!strict)
            return Property(type);
        return Property(name, type);
    }
    template <bool strict> Property createGetterOrSetterProperty(VM* vm, const JSTokenLocation&, PropertyNode::Type type, double name, int, int, int, int, int, int, int)
    {
        if (!strict)
            return Property(type);
        return Property(&vm->parserArena->identifierArena().makeNumericIdentifier(vm, name), type);
    }

    void appendStatement(int, int) { }
    void addVar(const Identifier*, bool) { }
    int combineCommaNodes(const JSTokenLocation&, int, int) { return 1; }
    int evalCount() const { return 0; }
    void appendBinaryExpressionInfo(int& operandStackDepth, int expr, int, int, int, int, int, bool)
    {
        if (!m_topBinaryExpr)
            m_topBinaryExpr = expr;
        else
            m_topBinaryExpr = BinaryExpr;
        operandStackDepth++;
    }
    
    // Logic to handle datastructures used during parsing of binary expressions
    void operatorStackPop(int& operatorStackDepth) { operatorStackDepth--; }
    bool operatorStackHasHigherPrecedence(int&, int) { return true; }
    BinaryOperand getFromOperandStack(int) { return m_topBinaryExpr; }
    void shrinkOperandStackBy(int& operandStackDepth, int amount) { operandStackDepth -= amount; }
    void appendBinaryOperation(const JSTokenLocation&, int& operandStackDepth, int&, BinaryOperand, BinaryOperand) { operandStackDepth++; }
    void operatorStackAppend(int& operatorStackDepth, int, int) { operatorStackDepth++; }
    int popOperandStack(int&) { int res = m_topBinaryExpr; m_topBinaryExpr = 0; return res; }
    
    void appendUnaryToken(int& stackDepth, int tok, int, int, int) { stackDepth = 1; m_topUnaryToken = tok; }
    int unaryTokenStackLastType(int&) { return m_topUnaryToken; }
    unsigned unaryTokenStackLastStart(int&) { return 0; }
    unsigned unaryTokenStackLastLineStartPosition(int&) { return 0; }
    void unaryTokenStackRemoveLast(int& stackDepth) { stackDepth = 0; }
    
    void assignmentStackAppend(int, int, int, int, int, int, int, Operator) { }
    int createAssignment(const JSTokenLocation&, int, int, int, int, int) { RELEASE_ASSERT_NOT_REACHED(); return 1; }
    const Identifier& getName(const Property& property) const { ASSERT(property.name); return *property.name; }
    PropertyNode::Type getType(const Property& property) const { return property.type; }
    bool isResolve(ExpressionType expr) const { return expr == ResolveExpr || expr == ResolveEvalExpr; }
    
private:
    int m_topBinaryExpr;
    int m_topUnaryToken;
    Vector<int, 8> m_topBinaryExprs;
    Vector<int, 8> m_topUnaryTokens;
};

}

#endif
Commit	Line	Data
14957cd0	1	/*
93a37866	2	* Copyright (C) 2010, 2013 Apple Inc. All rights reserved.
14957cd0 A	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	14	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	15	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	17	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	18	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	19	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	20	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	21	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	22	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	23	* THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#ifndef SyntaxChecker_h
	27	#define SyntaxChecker_h
	28
	29	#include "Lexer.h"
	30	#include <yarr/YarrSyntaxChecker.h>
	31
	32	namespace JSC {
6fe7ccc8	33
14957cd0 A	34	class SyntaxChecker {
	35	public:
	36	struct BinaryExprContext {
	37	BinaryExprContext(SyntaxChecker& context)
	38	: m_context(&context)
	39	{
	40	m_context->m_topBinaryExprs.append(m_context->m_topBinaryExpr);
	41	m_context->m_topBinaryExpr = 0;
	42	}
	43	~BinaryExprContext()
	44	{
	45	m_context->m_topBinaryExpr = m_context->m_topBinaryExprs.last();
	46	m_context->m_topBinaryExprs.removeLast();
	47	}
	48	private:
	49	SyntaxChecker* m_context;
	50	};
	51	struct UnaryExprContext {
	52	UnaryExprContext(SyntaxChecker& context)
	53	: m_context(&context)
	54	{
	55	m_context->m_topUnaryTokens.append(m_context->m_topUnaryToken);
	56	m_context->m_topUnaryToken = 0;
	57	}
	58	~UnaryExprContext()
	59	{
	60	m_context->m_topUnaryToken = m_context->m_topUnaryTokens.last();
	61	m_context->m_topUnaryTokens.removeLast();
	62	}
	63	private:
	64	SyntaxChecker* m_context;
	65	};
	66
93a37866	67	SyntaxChecker(VM* , void*)
14957cd0 A	68	{
	69	}
	70
	71	typedef SyntaxChecker FunctionBodyBuilder;
	72	enum { NoneExpr = 0,
	73	ResolveEvalExpr, ResolveExpr, NumberExpr, StringExpr,
	74	ThisExpr, NullExpr, BoolExpr, RegExpExpr, ObjectLiteralExpr,
	75	FunctionExpr, BracketExpr, DotExpr, CallExpr,
	76	NewExpr, PreExpr, PostExpr, UnaryExpr, BinaryExpr,
	77	ConditionalExpr, AssignmentExpr, TypeofExpr,
	78	DeleteExpr, ArrayLiteralExpr };
	79	typedef int ExpressionType;
	80
	81	typedef ExpressionType Expression;
	82	typedef int SourceElements;
	83	typedef int Arguments;
	84	typedef ExpressionType Comma;
	85	struct Property {
	86	ALWAYS_INLINE Property(void* = 0)
	87	: type((PropertyNode::Type)0)
	88	{
	89	}
	90	ALWAYS_INLINE Property(const Identifier* ident, PropertyNode::Type ty)
	91	: name(ident)
	92	, type(ty)
	93	{
	94	}
	95	ALWAYS_INLINE Property(PropertyNode::Type ty)
	96	: name(0)
	97	, type(ty)
	98	{
	99	}
	100	ALWAYS_INLINE bool operator!() { return !type; }
	101	const Identifier* name;
	102	PropertyNode::Type type;
	103	};
	104	typedef int PropertyList;
	105	typedef int ElementList;
	106	typedef int ArgumentsList;
	107	typedef int FormalParameterList;
	108	typedef int FunctionBody;
	109	typedef int Statement;
	110	typedef int ClauseList;
	111	typedef int Clause;
	112	typedef int ConstDeclList;
	113	typedef int BinaryOperand;
	114
	115	static const bool CreatesAST = false;
	116	static const bool NeedsFreeVariableInfo = false;
	117	static const bool CanUseFunctionCache = true;
6fe7ccc8 A	118	static const unsigned DontBuildKeywords = LexexFlagsDontBuildKeywords;
6fe7ccc8 A	119	static const unsigned DontBuildStrings = LexerFlagsDontBuildStrings;
14957cd0 A	120
14957cd0 A	121	int createSourceElements() { return 1; }
93a37866	122	ExpressionType makeFunctionCallNode(const JSTokenLocation&, int, int, int, int, int, int, int) { return CallExpr; }
14957cd0	123	void appendToComma(ExpressionType& base, ExpressionType right) { base = right; }
93a37866 A	124	ExpressionType createCommaExpr(const JSTokenLocation&, ExpressionType, ExpressionType right) { return right; }
	125	ExpressionType makeAssignNode(const JSTokenLocation&, ExpressionType, Operator, ExpressionType, bool, bool, int, int, int, int, int) { return AssignmentExpr; }
	126	ExpressionType makePrefixNode(const JSTokenLocation&, ExpressionType, Operator, int, int, int, int, int) { return PreExpr; }
	127	ExpressionType makePostfixNode(const JSTokenLocation&, ExpressionType, Operator, int, int, int, int, int) { return PostExpr; }
	128	ExpressionType makeTypeOfNode(const JSTokenLocation&, ExpressionType) { return TypeofExpr; }
	129	ExpressionType makeDeleteNode(const JSTokenLocation&, ExpressionType, int, int, int, int, int) { return DeleteExpr; }
	130	ExpressionType makeNegateNode(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
	131	ExpressionType makeBitwiseNotNode(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
	132	ExpressionType createLogicalNot(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
	133	ExpressionType createUnaryPlus(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
	134	ExpressionType createVoid(const JSTokenLocation&, ExpressionType) { return UnaryExpr; }
	135	ExpressionType thisExpr(const JSTokenLocation&) { return ThisExpr; }
	136	ExpressionType createResolve(const JSTokenLocation&, const Identifier*, int, int, int) { return ResolveExpr; }
	137	ExpressionType createObjectLiteral(const JSTokenLocation&) { return ObjectLiteralExpr; }
	138	ExpressionType createObjectLiteral(const JSTokenLocation&, int) { return ObjectLiteralExpr; }
	139	ExpressionType createArray(const JSTokenLocation&, int) { return ArrayLiteralExpr; }
	140	ExpressionType createArray(const JSTokenLocation&, int, int) { return ArrayLiteralExpr; }
	141	ExpressionType createNumberExpr(const JSTokenLocation&, double) { return NumberExpr; }
	142	ExpressionType createString(const JSTokenLocation&, const Identifier*) { return StringExpr; }
	143	ExpressionType createBoolean(const JSTokenLocation&, bool) { return BoolExpr; }
	144	ExpressionType createNull(const JSTokenLocation&) { return NullExpr; }
	145	ExpressionType createBracketAccess(const JSTokenLocation&, ExpressionType, ExpressionType, bool, int, int, int, int, int) { return BracketExpr; }
	146	ExpressionType createDotAccess(const JSTokenLocation&, ExpressionType, const Identifier*, int, int, int, int, int) { return DotExpr; }
	147	ExpressionType createRegExp(const JSTokenLocation&, const Identifier& pattern, const Identifier&, int, int, int) { return Yarr::checkSyntax(pattern.string()) ? 0 : RegExpExpr; }
	148	ExpressionType createNewExpr(const JSTokenLocation&, ExpressionType, int, int, int, int, int, int) { return NewExpr; }
	149	ExpressionType createNewExpr(const JSTokenLocation&, ExpressionType, int, int, int, int) { return NewExpr; }
	150	ExpressionType createConditionalExpr(const JSTokenLocation&, ExpressionType, ExpressionType, ExpressionType) { return ConditionalExpr; }
	151	ExpressionType createAssignResolve(const JSTokenLocation&, const Identifier&, ExpressionType, int, int, int, int, int) { return AssignmentExpr; }
	152	ExpressionType createFunctionExpr(const JSTokenLocation&, const Identifier*, int, int, int, int, int, int, int) { return FunctionExpr; }
	153	int createFunctionBody(const JSTokenLocation&, const JSTokenLocation&, int, bool) { return 1; }
	154	void setFunctionStart(int, int) { }
14957cd0 A	155	int createArguments() { return 1; }
14957cd0 A	156	int createArguments(int) { return 1; }
93a37866 A	157	int createArgumentsList(const JSTokenLocation&, int) { return 1; }
93a37866 A	158	int createArgumentsList(const JSTokenLocation&, int, int) { return 1; }
14957cd0 A	159	template <bool complete> Property createProperty(const Identifier* name, int, PropertyNode::Type type)
	160	{
	161	if (!complete)
	162	return Property(type);
	163	ASSERT(name);
	164	return Property(name, type);
	165	}
93a37866	166	template <bool complete> Property createProperty(VM* vm, double name, int, PropertyNode::Type type)
14957cd0 A	167	{
	168	if (!complete)
	169	return Property(type);
93a37866	170	return Property(&vm->parserArena->identifierArena().makeNumericIdentifier(vm, name), type);
14957cd0	171	}
93a37866 A	172	int createPropertyList(const JSTokenLocation&, Property) { return 1; }
93a37866 A	173	int createPropertyList(const JSTokenLocation&, Property, int) { return 1; }
14957cd0 A	174	int createElementList(int, int) { return 1; }
	175	int createElementList(int, int, int) { return 1; }
	176	int createFormalParameterList(const Identifier&) { return 1; }
	177	int createFormalParameterList(int, const Identifier&) { return 1; }
	178	int createClause(int, int) { return 1; }
	179	int createClauseList(int) { return 1; }
	180	int createClauseList(int, int) { return 1; }
	181	void setUsesArguments(int) { }
93a37866 A	182	int createFuncDeclStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int, int, int) { return 1; }
	183	int createBlockStatement(const JSTokenLocation&, int, int, int) { return 1; }
	184	int createExprStatement(const JSTokenLocation&, int, int, int) { return 1; }
	185	int createIfStatement(const JSTokenLocation&, int, int, int, int) { return 1; }
	186	int createIfStatement(const JSTokenLocation&, int, int, int, int, int) { return 1; }
	187	int createForLoop(const JSTokenLocation&, int, int, int, int, int, int) { return 1; }
	188	int createForInLoop(const JSTokenLocation&, const Identifier*, int, int, int, int, int, int, int, int, int, int, int, int) { return 1; }
	189	int createForInLoop(const JSTokenLocation&, int, int, int, int, int, int, int, int, int, int) { return 1; }
	190	int createEmptyStatement(const JSTokenLocation&) { return 1; }
	191	int createVarStatement(const JSTokenLocation&, int, int, int) { return 1; }
	192	int createReturnStatement(const JSTokenLocation&, int, int, int, int, int, int, int) { return 1; }
	193	int createBreakStatement(const JSTokenLocation&, int, int, int, int, int) { return 1; }
	194	int createBreakStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int) { return 1; }
	195	int createContinueStatement(const JSTokenLocation&, int, int, int, int, int) { return 1; }
	196	int createContinueStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int) { return 1; }
	197	int createTryStatement(const JSTokenLocation&, int, const Identifier*, int, int, int, int) { return 1; }
	198	int createSwitchStatement(const JSTokenLocation&, int, int, int, int, int, int) { return 1; }
	199	int createWhileStatement(const JSTokenLocation&, int, int, int, int) { return 1; }
	200	int createWithStatement(const JSTokenLocation&, int, int, int, int, int, int, int, int) { return 1; }
	201	int createDoWhileStatement(const JSTokenLocation&, int, int, int, int) { return 1; }
	202	int createLabelStatement(const JSTokenLocation&, const Identifier*, int, int, int, int, int) { return 1; }
	203	int createThrowStatement(const JSTokenLocation&, int, int, int, int, int, int, int) { return 1; }
	204	int createDebugger(const JSTokenLocation&, int, int) { return 1; }
	205	int createConstStatement(const JSTokenLocation&, int, int, int) { return 1; }
	206	int appendConstDecl(const JSTokenLocation&, int, const Identifier*, int) { return 1; }
	207	template <bool strict> Property createGetterOrSetterProperty(const JSTokenLocation&, PropertyNode::Type type, const Identifier* name, int, int, int, int, int, int, int)
14957cd0 A	208	{
	209	ASSERT(name);
	210	if (!strict)
	211	return Property(type);
	212	return Property(name, type);
	213	}
93a37866	214	template <bool strict> Property createGetterOrSetterProperty(VM* vm, const JSTokenLocation&, PropertyNode::Type type, double name, int, int, int, int, int, int, int)
6fe7ccc8 A	215	{
	216	if (!strict)
	217	return Property(type);
93a37866	218	return Property(&vm->parserArena->identifierArena().makeNumericIdentifier(vm, name), type);
6fe7ccc8	219	}
14957cd0 A	220
	221	void appendStatement(int, int) { }
	222	void addVar(const Identifier*, bool) { }
93a37866	223	int combineCommaNodes(const JSTokenLocation&, int, int) { return 1; }
14957cd0	224	int evalCount() const { return 0; }
93a37866	225	void appendBinaryExpressionInfo(int& operandStackDepth, int expr, int, int, int, int, int, bool)
14957cd0 A	226	{
	227	if (!m_topBinaryExpr)
	228	m_topBinaryExpr = expr;
	229	else
	230	m_topBinaryExpr = BinaryExpr;
	231	operandStackDepth++;
	232	}
	233
	234	// Logic to handle datastructures used during parsing of binary expressions
	235	void operatorStackPop(int& operatorStackDepth) { operatorStackDepth--; }
	236	bool operatorStackHasHigherPrecedence(int&, int) { return true; }
	237	BinaryOperand getFromOperandStack(int) { return m_topBinaryExpr; }
	238	void shrinkOperandStackBy(int& operandStackDepth, int amount) { operandStackDepth -= amount; }
93a37866	239	void appendBinaryOperation(const JSTokenLocation&, int& operandStackDepth, int&, BinaryOperand, BinaryOperand) { operandStackDepth++; }
14957cd0 A	240	void operatorStackAppend(int& operatorStackDepth, int, int) { operatorStackDepth++; }
	241	int popOperandStack(int&) { int res = m_topBinaryExpr; m_topBinaryExpr = 0; return res; }
	242
93a37866	243	void appendUnaryToken(int& stackDepth, int tok, int, int, int) { stackDepth = 1; m_topUnaryToken = tok; }
14957cd0	244	int unaryTokenStackLastType(int&) { return m_topUnaryToken; }
93a37866 A	245	unsigned unaryTokenStackLastStart(int&) { return 0; }
93a37866 A	246	unsigned unaryTokenStackLastLineStartPosition(int&) { return 0; }
14957cd0 A	247	void unaryTokenStackRemoveLast(int& stackDepth) { stackDepth = 0; }
14957cd0 A	248
93a37866 A	249	void assignmentStackAppend(int, int, int, int, int, int, int, Operator) { }
93a37866 A	250	int createAssignment(const JSTokenLocation&, int, int, int, int, int) { RELEASE_ASSERT_NOT_REACHED(); return 1; }
14957cd0 A	251	const Identifier& getName(const Property& property) const { ASSERT(property.name); return *property.name; }
	252	PropertyNode::Type getType(const Property& property) const { return property.type; }
	253	bool isResolve(ExpressionType expr) const { return expr == ResolveExpr \|\| expr == ResolveEvalExpr; }
	254
	255	private:
	256	int m_topBinaryExpr;
	257	int m_topUnaryToken;
	258	Vector<int, 8> m_topBinaryExprs;
	259	Vector<int, 8> m_topUnaryTokens;
	260	};
	261
	262	}
	263
	264	#endif