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// -*- c-basic-offset: 2 -*-
/*
* This file is part of the KDE libraries
* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2003 Apple Computer, Inc.
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifndef KJS_CONTEXT_H
#define KJS_CONTEXT_H
#include "function.h"
#include "protect.h"
namespace KJS {
/**
* @short Execution context.
*/
class ContextImp {
public:
ContextImp(Object &glob, InterpreterImp *, Object &thisV, CodeType type = GlobalCode,
ContextImp *callingContext = 0, FunctionImp *functiion = 0, const List *args = 0);
~ContextImp();
const ScopeChain &scopeChain() const { return scope; }
Object variableObject() const { return variable; }
void setVariableObject(const Object &v) { variable = v; }
Object thisValue() const { return thisVal; }
ContextImp *callingContext() { return _callingContext; }
ObjectImp *activationObject() { return activation.imp(); }
FunctionImp *function() const { return _function; }
const List *arguments() const { return _arguments; }
void pushScope(const Object &s) { scope.push(s.imp()); }
void popScope() { scope.pop(); }
LabelStack *seenLabels() { return &ls; }
void mark();
private:
InterpreterImp *_interpreter;
ContextImp *_callingContext;
FunctionImp *_function;
const List *_arguments;
// because ContextImp is always allocated on the stack,
// there is no need to protect various pointers from conservative
// GC since they will be caught by the conservative sweep anyway!
Object activation;
ScopeChain scope;
Object variable;
Object thisVal;
LabelStack ls;
CodeType codeType;
};
} // namespace KJS
#endif
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