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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at info@qt.nokia.com.
**
**************************************************************************/
#ifndef QMLJS_SCOPECHAIN_H
#define QMLJS_SCOPECHAIN_H
#include "qmljs_global.h"
#include "qmljsdocument.h"
#include "qmljscontext.h"
#include <QtCore/QList>
#include <QtCore/QSharedPointer>
namespace QmlJS {
class ObjectValue;
class TypeScope;
class JSImportScope;
class Context;
class Value;
class QMLJS_EXPORT QmlComponentChain
{
Q_DISABLE_COPY(QmlComponentChain)
public:
QmlComponentChain(const Document::Ptr &document);
~QmlComponentChain();
Document::Ptr document() const;
QList<const QmlComponentChain *> instantiatingComponents() const;
const ObjectValue *idScope() const;
const ObjectValue *rootObjectScope() const;
// takes ownership
void addInstantiatingComponent(const QmlComponentChain *component);
private:
QList<const QmlComponentChain *> m_instantiatingComponents;
Document::Ptr m_document;
};
// scope chains are copyable
// constructing a new scope chain is currently too expensive:
// building the instantiating component chain needs to be sped up
class QMLJS_EXPORT ScopeChain
{
public:
explicit ScopeChain(const Document::Ptr &document, const ContextPtr &context);
Document::Ptr document() const;
const ContextPtr &context() const;
const Value *lookup(const QString &name, const ObjectValue **foundInScope = 0) const;
const Value *evaluate(AST::Node *node) const;
const ObjectValue *globalScope() const;
void setGlobalScope(const ObjectValue *globalScope);
QSharedPointer<const QmlComponentChain> qmlComponentChain() const;
void setQmlComponentChain(const QSharedPointer<const QmlComponentChain> &qmlComponentChain);
QList<const ObjectValue *> qmlScopeObjects() const;
void setQmlScopeObjects(const QList<const ObjectValue *> &qmlScopeObjects);
const TypeScope *qmlTypes() const;
void setQmlTypes(const TypeScope *qmlTypes);
const JSImportScope *jsImports() const;
void setJsImports(const JSImportScope *jsImports);
QList<const ObjectValue *> jsScopes() const;
void setJsScopes(const QList<const ObjectValue *> &jsScopes);
QList<const ObjectValue *> all() const;
private:
void update() const;
void initializeRootScope();
void makeComponentChain(QmlComponentChain *target, const Snapshot &snapshot,
QHash<Document *, QmlComponentChain *> *components);
Document::Ptr m_document;
ContextPtr m_context;
const ObjectValue *m_globalScope;
QSharedPointer<const QmlComponentChain> m_qmlComponentScope;
QList<const ObjectValue *> m_qmlScopeObjects;
const TypeScope *m_qmlTypes;
const JSImportScope *m_jsImports;
QList<const ObjectValue *> m_jsScopes;
mutable bool m_modified;
mutable QList<const ObjectValue *> m_all;
};
} // namespace QmlJS
#endif // QMLJS_SCOPECHAIN_H
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