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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV4SCRIPT_H
#define QV4SCRIPT_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qv4global_p.h"
#include "qv4engine_p.h"
#include "qv4functionobject_p.h"
#include "qv4context_p.h"
#include <QQmlError>
QT_BEGIN_NAMESPACE
class QQmlContextData;
namespace QQmlJS {
class Directives;
}
namespace QV4 {
struct ContextStateSaver {
Value *savedContext;
bool strictMode;
Lookup *lookups;
CompiledData::CompilationUnit *compilationUnit;
int lineNumber;
ContextStateSaver(Scope &scope, ExecutionContext *context)
: savedContext(scope.alloc(1))
, strictMode(context->d()->strictMode)
, lookups(context->d()->lookups)
, compilationUnit(context->d()->compilationUnit)
, lineNumber(context->d()->lineNumber)
{
savedContext->setM(context->d());
}
ContextStateSaver(Scope &scope, Heap::ExecutionContext *context)
: savedContext(scope.alloc(1))
, strictMode(context->strictMode)
, lookups(context->lookups)
, compilationUnit(context->compilationUnit)
, lineNumber(context->lineNumber)
{
savedContext->setM(context);
}
~ContextStateSaver()
{
Heap::ExecutionContext *ctx = static_cast<Heap::ExecutionContext *>(savedContext->m());
ctx->strictMode = strictMode;
ctx->lookups = lookups;
ctx->compilationUnit = compilationUnit;
ctx->lineNumber = lineNumber;
}
};
struct Q_QML_EXPORT Script {
Script(ExecutionContext *scope, const QString &sourceCode, const QString &source = QString(), int line = 1, int column = 0)
: sourceFile(source), line(line), column(column), sourceCode(sourceCode)
, scope(scope), strictMode(false), inheritContext(false), parsed(false)
, vmFunction(0), parseAsBinding(false) {}
Script(ExecutionEngine *engine, QmlContext *qml, const QString &sourceCode, const QString &source = QString(), int line = 1, int column = 0)
: sourceFile(source), line(line), column(column), sourceCode(sourceCode)
, scope(engine->rootContext()), strictMode(false), inheritContext(true), parsed(false)
, vmFunction(0), parseAsBinding(true) {
if (qml)
qmlContext.set(engine, *qml);
}
Script(ExecutionEngine *engine, QmlContext *qml, CompiledData::CompilationUnit *compilationUnit);
~Script();
QString sourceFile;
int line;
int column;
QString sourceCode;
ExecutionContext *scope;
bool strictMode;
bool inheritContext;
bool parsed;
QV4::PersistentValue qmlContext;
QV4::PersistentValue compilationUnitHolder;
Function *vmFunction;
bool parseAsBinding;
void parse();
ReturnedValue run();
ReturnedValue qmlBinding();
Function *function();
static QQmlRefPointer<CompiledData::CompilationUnit> precompile(IR::Module *module, Compiler::JSUnitGenerator *unitGenerator, ExecutionEngine *engine, const QUrl &url, const QString &source,
QList<QQmlError> *reportedErrors = 0, QQmlJS::Directives *directivesCollector = 0);
static ReturnedValue evaluate(ExecutionEngine *engine, const QString &script, QmlContext *qmlContext);
};
}
QT_END_NAMESPACE
#endif
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