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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 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://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.
**
****************************************************************************/
#include "objectlengthcalculator.h"
#include <qmljs/parser/qmljsast_p.h>
using namespace QmlJS;
using namespace QmlDesigner;
using namespace QmlJS::AST;
ObjectLengthCalculator::ObjectLengthCalculator():
m_doc(Document::create("<internal>", Document::QmlLanguage))
{
}
bool ObjectLengthCalculator::operator()(const QString &text, quint32 offset,
quint32 &length)
{
m_offset = offset;
m_length = 0;
m_doc->setSource(text);
if (!m_doc->parseQml())
return false;
Node::accept(m_doc->qmlProgram(), this);
if (m_length) {
length = m_length;
return true;
} else {
return false;
}
}
bool ObjectLengthCalculator::visit(QmlJS::AST::UiObjectBinding *ast)
{
if (m_length > 0)
return false;
if (ast->qualifiedTypeNameId && ast->qualifiedTypeNameId->identifierToken.isValid()) {
const quint32 start = ast->qualifiedTypeNameId->identifierToken.offset;
const quint32 end = ast->lastSourceLocation().end();
if (start == m_offset) {
m_length = end - start;
return false;
}
return m_offset < end;
} else {
return true;
}
}
bool ObjectLengthCalculator::visit(QmlJS::AST::UiObjectDefinition *ast)
{
if (m_length > 0)
return false;
const quint32 start = ast->firstSourceLocation().offset;
const quint32 end = ast->lastSourceLocation().end();
if (start == m_offset) {
m_length = end - start;
return false;
}
return m_offset < end;
}
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