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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 QV4LOOKUP_H
#define QV4LOOKUP_H
#include "qv4global_p.h"
#include "qv4runtime_p.h"
#include "qv4engine_p.h"
#include "qv4context_p.h"
#include "qv4object_p.h"
#include "qv4internalclass_p.h"
QT_BEGIN_NAMESPACE
namespace QQmlJS {
namespace VM {
struct Lookup {
enum { Size = 3 };
union {
void (*lookupProperty)(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
void (*lookupGlobal)(Lookup *l, ExecutionContext *ctx, Value *result);
};
InternalClass *classList[Size];
int level;
uint index;
String *name;
static void lookupPropertyGeneric(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
static void lookupProperty0(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
static void lookupProperty1(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
static void lookupProperty2(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
static void lookupPropertyAccessor0(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
static void lookupPropertyAccessor1(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
static void lookupPropertyAccessor2(Lookup *l, ExecutionContext *ctx, Value *result, const Value &object);
static void lookupGlobalGeneric(Lookup *l, ExecutionContext *ctx, Value *result);
static void lookupGlobal0(Lookup *l, ExecutionContext *ctx, Value *result);
static void lookupGlobal1(Lookup *l, ExecutionContext *ctx, Value *result);
static void lookupGlobal2(Lookup *l, ExecutionContext *ctx, Value *result);
static void lookupGlobalAccessor0(Lookup *l, ExecutionContext *ctx, Value *result);
static void lookupGlobalAccessor1(Lookup *l, ExecutionContext *ctx, Value *result);
static void lookupGlobalAccessor2(Lookup *l, ExecutionContext *ctx, Value *result);
Property *lookup(Object *obj, PropertyAttributes *attrs) {
int i = 0;
while (i < level && obj && obj->internalClass == classList[i]) {
obj = obj->prototype;
++i;
}
if (index != UINT_MAX && obj->internalClass == classList[i]) {
*attrs = obj->internalClass->propertyData.at(index);
return obj->memberData + index;
}
while (i < Size && obj) {
classList[i] = obj->internalClass;
index = obj->internalClass->find(name);
if (index != UINT_MAX) {
level = i;
*attrs = obj->internalClass->propertyData.at(index);
return obj->memberData + index;
}
obj = obj->prototype;
++i;
}
level = i;
while (obj) {
index = obj->internalClass->find(name);
if (index != UINT_MAX) {
*attrs = obj->internalClass->propertyData.at(index);
return obj->memberData + index;
}
obj = obj->prototype;
}
return 0;
}
Property *setterLookup(Object *o, PropertyAttributes *attrs) {
if (o->internalClass == classList[0]) {
*attrs = o->internalClass->propertyData[index];
return o->memberData + index;
}
uint idx = o->internalClass->find(name);
if (idx != UINT_MAX) {
classList[0] = o->internalClass;
index = idx;
*attrs = o->internalClass->propertyData[index];
return o->memberData + index;
}
return 0;
}
};
}
}
QT_END_NAMESPACE
#endif
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