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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "objectlengthcalculator.h"
#include <qmljs/parser/qmljsast_p.h>
using namespace QmlDesigner;
ObjectLengthCalculator::ObjectLengthCalculator()
: m_doc(QmlJS::Document::create(Utils::FilePath::fromString("<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;
}
void ObjectLengthCalculator::throwRecursionDepthError()
{
qWarning("Warning: Hit maximum recursion depth while visiting the AST in ObjectLengthCalculator");
}
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