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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 QtQml 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqmlcompiler_p.h"
#include "qqmlengine.h"
#include "qqmlcomponent.h"
#include "qqmlcomponent_p.h"
#include "qqmlcontext.h"
#include "qqmlcontext_p.h"
#ifdef QML_THREADED_VME_INTERPRETER
#include "qqmlvme_p.h"
#endif
#include <QtCore/qdebug.h>
#include <private/qobject_p.h>
QT_BEGIN_NAMESPACE
int QQmlCompiledData::indexForString(const QString &data)
{
int idx = primitives.indexOf(data);
if (idx == -1) {
idx = primitives.count();
primitives << data;
}
return idx;
}
int QQmlCompiledData::indexForByteArray(const QByteArray &data)
{
int idx = datas.indexOf(data);
if (idx == -1) {
idx = datas.count();
datas << data;
}
return idx;
}
int QQmlCompiledData::indexForUrl(const QUrl &data)
{
int idx = urls.indexOf(data);
if (idx == -1) {
idx = urls.count();
urls << data;
}
return idx;
}
QQmlCompiledData::QQmlCompiledData(QQmlEngine *engine)
: engine(engine), importCache(0), metaTypeId(-1), listMetaTypeId(-1), isRegisteredWithEngine(false),
rootPropertyCache(0)
{
Q_ASSERT(engine);
bytecode.reserve(1024);
}
void QQmlCompiledData::destroy()
{
if (engine && hasEngine())
QQmlEnginePrivate::deleteInEngineThread(engine, this);
else
delete this;
}
QQmlCompiledData::~QQmlCompiledData()
{
if (isRegisteredWithEngine)
QQmlEnginePrivate::get(engine)->unregisterCompositeType(this);
clear();
for (int ii = 0; ii < types.count(); ++ii) {
if (types.at(ii).component)
types.at(ii).component->release();
if (types.at(ii).typePropertyCache)
types.at(ii).typePropertyCache->release();
}
for (int ii = 0; ii < propertyCaches.count(); ++ii)
propertyCaches.at(ii)->release();
for (int ii = 0; ii < contextCaches.count(); ++ii)
contextCaches.at(ii)->release();
for (int ii = 0; ii < scripts.count(); ++ii)
scripts.at(ii)->release();
if (importCache)
importCache->release();
if (rootPropertyCache)
rootPropertyCache->release();
}
void QQmlCompiledData::clear()
{
for (int ii = 0; ii < programs.count(); ++ii)
qPersistentDispose(programs[ii].bindings);
}
/*!
Returns the property cache, if one alread exists. The cache is not referenced.
*/
QQmlPropertyCache *QQmlCompiledData::TypeReference::propertyCache() const
{
if (type)
return typePropertyCache;
else
return component->rootPropertyCache;
}
/*!
Returns the property cache, creating one if it doesn't already exist. The cache is not referenced.
*/
QQmlPropertyCache *QQmlCompiledData::TypeReference::createPropertyCache(QQmlEngine *engine)
{
if (typePropertyCache) {
return typePropertyCache;
} else if (type) {
typePropertyCache = QQmlEnginePrivate::get(engine)->cache(type->metaObject());
typePropertyCache->addref();
return typePropertyCache;
} else {
return component->rootPropertyCache;
}
}
void QQmlCompiledData::dumpInstructions()
{
if (!name.isEmpty())
qWarning() << name;
qWarning().nospace() << "Index\tOperation\t\tData1\tData2\tData3\tComments";
qWarning().nospace() << "-------------------------------------------------------------------------------";
const char *instructionStream = bytecode.constData();
const char *endInstructionStream = bytecode.constData() + bytecode.size();
int instructionCount = 0;
while (instructionStream < endInstructionStream) {
QQmlInstruction *instr = (QQmlInstruction *)instructionStream;
dump(instr, instructionCount);
instructionStream += QQmlInstruction::size(instructionType(instr));
instructionCount++;
}
qWarning().nospace() << "-------------------------------------------------------------------------------";
}
int QQmlCompiledData::addInstructionHelper(QQmlInstruction::Type type, QQmlInstruction &instr)
{
#ifdef QML_THREADED_VME_INTERPRETER
instr.common.code = QQmlVME::instructionJumpTable()[static_cast<int>(type)];
#else
instr.common.instructionType = type;
#endif
int ptrOffset = bytecode.size();
int size = QQmlInstruction::size(type);
if (bytecode.capacity() <= bytecode.size() + size)
bytecode.reserve(bytecode.size() + size + 512);
bytecode.append(reinterpret_cast<const char *>(&instr), size);
return ptrOffset;
}
int QQmlCompiledData::nextInstructionIndex()
{
return bytecode.size();
}
QQmlInstruction *QQmlCompiledData::instruction(int index)
{
return (QQmlInstruction *)(bytecode.constData() + index);
}
QQmlInstruction::Type QQmlCompiledData::instructionType(const QQmlInstruction *instr)
{
#ifdef QML_THREADED_VME_INTERPRETER
void *const *jumpTable = QQmlVME::instructionJumpTable();
void *code = instr->common.code;
# define QML_CHECK_INSTR_CODE(I, FMT) \
if (jumpTable[static_cast<int>(QQmlInstruction::I)] == code) \
return QQmlInstruction::I;
FOR_EACH_QML_INSTR(QML_CHECK_INSTR_CODE)
Q_UNREACHABLE();
Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid instruction address");
return static_cast<QQmlInstruction::Type>(0);
# undef QML_CHECK_INSTR_CODE
#else
return static_cast<QQmlInstruction::Type>(instr->common.instructionType);
#endif
}
void QQmlCompiledData::initialize(QQmlEngine *engine)
{
Q_ASSERT(!hasEngine());
QQmlCleanup::addToEngine(engine);
}
QT_END_NAMESPACE
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