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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the V4VM module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLJS_ENVIRONMENT_H
#define QMLJS_ENVIRONMENT_H
#include <qmljs_runtime.h>
namespace QQmlJS {
namespace VM {
struct Value;
struct Object;
struct ExecutionEngine;
struct ExecutionContext;
struct DeclarativeEnvironment;
struct DiagnosticMessage
{
enum { Error, Warning };
QString fileName;
quint32 offset;
quint32 length;
quint32 startLine;
unsigned startColumn: 31;
unsigned type: 1;
QString message;
DiagnosticMessage *next;
DiagnosticMessage();
~DiagnosticMessage();
String *buildFullMessage(ExecutionContext *ctx) const;
};
struct ExecutionContext
{
ExecutionEngine *engine;
ExecutionContext *parent;
Value thisObject;
FunctionObject *function;
Value *arguments;
unsigned int argumentCount;
Value *locals;
String **formals() const;
unsigned int formalCount() const;
String **variables() const;
unsigned int variableCount() const;
ExecutionContext *outer() const;
bool strictMode;
Object *activation;
struct With {
Object *object;
With *next;
} *withObject;
void init(ExecutionEngine *e);
bool hasBinding(String *name) const;
void createMutableBinding(String *name, bool deletable);
bool setMutableBinding(ExecutionContext *scope, String *name, Value value);
Value getBindingValue(ExecutionContext *scope, String *name, bool strict) const;
bool deleteBinding(ExecutionContext *ctx, String *name);
void pushWithObject(Object *with);
void popWithObject();
void initCallContext(ExecutionContext *parent, const Value that, FunctionObject *f, Value *args, unsigned argc);
void leaveCallContext();
void wireUpPrototype();
void throwError(Value value);
void throwError(const QString &message);
void throwSyntaxError(DiagnosticMessage *message);
void throwTypeError();
void throwReferenceError(Value value);
void throwUnimplemented(const QString &message);
void setProperty(String *name, Value value);
Value getProperty(String *name);
Value getPropertyNoThrow(String *name);
void inplaceBitOp(Value value, String *name, BinOp op);
bool deleteProperty(String *name);
inline Value argument(unsigned int index = 0)
{
if (index < argumentCount)
return arguments[index];
return Value::undefinedValue();
}
};
} // namespace VM
} // namespace QQmlJS
#endif
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