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// -*- c-basic-offset: 2 -*-
/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2003, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2007 Cameron Zwarich (cwzwarich@uwaterloo.ca)
* Copyright (C) 2007 Maks Orlovich
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef KJS_FUNCTION_H
#define KJS_FUNCTION_H
#include "JSVariableObject.h"
#include "SymbolTable.h"
#include "nodes.h"
#include "object.h"
namespace KJS {
class FunctionBodyNode;
class FunctionPrototype;
class JSActivation;
class JSGlobalObject;
class InternalFunctionImp : public JSObject {
public:
InternalFunctionImp();
InternalFunctionImp(FunctionPrototype*, const Identifier&);
virtual CallType getCallData(CallData&);
virtual JSValue* callAsFunction(ExecState*, JSObject* thisObjec, const List& args) = 0;
virtual bool implementsHasInstance() const;
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
const Identifier& functionName() const { return m_name; }
private:
Identifier m_name;
};
class FunctionImp : public InternalFunctionImp {
public:
FunctionImp(ExecState*, const Identifier&, FunctionBodyNode*, ScopeChainNode*);
virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&);
virtual void put(ExecState*, const Identifier& propertyName, JSValue*);
virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
virtual ConstructType getConstructData(ConstructData&);
virtual JSObject* construct(ExecState*, const List& args);
virtual CallType getCallData(CallData&);
virtual JSValue* callAsFunction(ExecState*, JSObject* thisObj, const List& args);
// Note: unlike body->paramName, this returns Identifier::null for parameters
// that will never get set, due to later param having the same name
Identifier getParameterName(int index);
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
RefPtr<FunctionBodyNode> body;
void setScope(const ScopeChain& s) { _scope = s; }
ScopeChain& scope() { return _scope; }
virtual void mark();
private:
ScopeChain _scope;
static JSValue* argumentsGetter(ExecState*, const Identifier&, const PropertySlot&);
static JSValue* callerGetter(ExecState*, const Identifier&, const PropertySlot&);
static JSValue* lengthGetter(ExecState*, const Identifier&, const PropertySlot&);
};
class IndexToNameMap {
public:
IndexToNameMap(FunctionImp*, const List& args);
~IndexToNameMap();
Identifier& operator[](const Identifier& index);
bool isMapped(const Identifier& index) const;
void unMap(const Identifier& index);
private:
unsigned size;
Identifier* _map;
};
class Arguments : public JSObject {
public:
Arguments(ExecState*, FunctionImp* func, const List& args, JSActivation* act);
virtual void mark();
virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&);
virtual void put(ExecState*, const Identifier& propertyName, JSValue*);
virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
private:
static JSValue* mappedIndexGetter(ExecState*, const Identifier&, const PropertySlot& slot);
JSActivation* _activationObject;
mutable IndexToNameMap indexToNameMap;
};
class PrototypeFunction : public InternalFunctionImp {
public:
typedef JSValue* (*JSMemberFunction)(ExecState*, JSObject* thisObj, const List&);
PrototypeFunction(ExecState*, int len, const Identifier&, JSMemberFunction);
PrototypeFunction(ExecState*, FunctionPrototype*, int len, const Identifier&, JSMemberFunction);
virtual JSValue* callAsFunction(ExecState* exec, JSObject* thisObj, const List&);
private:
const JSMemberFunction m_function;
};
// Just like PrototypeFunction, but callbacks also get passed the JS function object.
class PrototypeReflexiveFunction : public InternalFunctionImp {
public:
typedef JSValue* (*JSMemberFunction)(ExecState*, PrototypeReflexiveFunction*, JSObject* thisObj, const List&);
PrototypeReflexiveFunction(ExecState*, FunctionPrototype*, int len, const Identifier&, JSMemberFunction, JSGlobalObject* expectedThisObject);
virtual void mark();
virtual JSValue* callAsFunction(ExecState* exec, JSObject* thisObj, const List&);
JSGlobalObject* cachedGlobalObject() const { return m_cachedGlobalObject; }
private:
const JSMemberFunction m_function;
JSGlobalObject* m_cachedGlobalObject;
};
// Global Functions
JSValue* globalFuncEval(ExecState*, PrototypeReflexiveFunction*, JSObject*, const List&);
JSValue* globalFuncParseInt(ExecState*, JSObject*, const List&);
JSValue* globalFuncParseFloat(ExecState*, JSObject*, const List&);
JSValue* globalFuncIsNaN(ExecState*, JSObject*, const List&);
JSValue* globalFuncIsFinite(ExecState*, JSObject*, const List&);
JSValue* globalFuncDecodeURI(ExecState*, JSObject*, const List&);
JSValue* globalFuncDecodeURIComponent(ExecState*, JSObject*, const List&);
JSValue* globalFuncEncodeURI(ExecState*, JSObject*, const List&);
JSValue* globalFuncEncodeURIComponent(ExecState*, JSObject*, const List&);
JSValue* globalFuncEscape(ExecState*, JSObject*, const List&);
JSValue* globalFuncUnescape(ExecState*, JSObject*, const List&);
#ifndef NDEBUG
JSValue* globalFuncKJSPrint(ExecState*, JSObject*, const List&);
#endif
static const double mantissaOverflowLowerBound = 9007199254740992.0;
double parseIntOverflow(const char*, int length, int radix);
} // namespace
#endif
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