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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** 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://www.qt.io/licensing. 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.
**
** 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.
**
****************************************************************************/
#include "firstdefinitionfinder.h"
#include <qmljs/parser/qmljsast_p.h>
#include <QDebug>
using namespace QmlJS;
using namespace QmlDesigner;
using namespace QmlJS::AST;
FirstDefinitionFinder::FirstDefinitionFinder(const QString &text):
m_doc(Document::create("<internal>", Language::Qml))
{
m_doc->setSource(text);
bool ok = m_doc->parseQml();
if (!ok) {
qDebug() << text;
foreach (const QmlJS::DiagnosticMessage &message, m_doc->diagnosticMessages())
qDebug() << message.message;
}
Q_ASSERT(ok);
}
/*!
Finds the first object definition inside the object specified by \a offset.
Returns the offset of the first object definition.
*/
qint32 FirstDefinitionFinder::operator()(quint32 offset)
{
m_offset = offset;
m_firstObjectDefinition = 0;
Node::accept(m_doc->qmlProgram(), this);
if (!m_firstObjectDefinition)
return -1;
return m_firstObjectDefinition->firstSourceLocation().offset;
}
void FirstDefinitionFinder::extractFirstObjectDefinition(UiObjectInitializer* ast)
{
if (!ast)
return;
for (UiObjectMemberList *iter = ast->members; iter; iter = iter->next) {
if (UiObjectDefinition *def = cast<UiObjectDefinition*>(iter->member))
m_firstObjectDefinition = def;
}
}
bool FirstDefinitionFinder::visit(QmlJS::AST::UiObjectBinding *ast)
{
if (ast->qualifiedTypeNameId && ast->qualifiedTypeNameId->identifierToken.isValid()) {
const quint32 start = ast->qualifiedTypeNameId->identifierToken.offset;
if (start == m_offset) {
extractFirstObjectDefinition(ast->initializer);
return false;
}
}
return true;
}
bool FirstDefinitionFinder::visit(QmlJS::AST::UiObjectDefinition *ast)
{
const quint32 start = ast->firstSourceLocation().offset;
if (start == m_offset) {
extractFirstObjectDefinition(ast->initializer);
return false;
}
return true;
}
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