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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "objectlengthcalculator.h"
#include <qmljs/parser/qmljsast_p.h>
using namespace QmlDesigner;
ObjectLengthCalculator::ObjectLengthCalculator():
m_doc(QmlJS::Document::create(QLatin1String("<internal>"), QmlJS::Dialect::Qml))
{
}
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;
QmlJS::AST::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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