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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: http://www.qt-project.org/
**
**
** 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.
**
**
**************************************************************************/
#include "namedemangler.h"
#include "demanglerexceptions.h"
#include "parsetreenodes.h"
#include <limits>
namespace Debugger {
namespace Internal {
class NameDemanglerPrivate
{
public:
bool demangle(const QString &mangledName);
const QString &errorString() const { return m_errorString; }
const QString &demangledName() const { return m_demangledName; }
private:
GlobalParseState m_parseState;
QString m_errorString;
QString m_demangledName;
};
bool NameDemanglerPrivate::demangle(const QString &mangledName)
{
bool success;
try {
m_parseState.m_mangledName = mangledName.toAscii();
m_parseState.m_pos = 0;
m_demangledName.clear();
if (!MangledNameRule::mangledRepresentationStartsWith(m_parseState.peek())) {
m_demangledName = m_parseState.m_mangledName;
return true;
}
MangledNameRule::parse(&m_parseState, ParseTreeNode::Ptr());
if (m_parseState.m_pos != m_parseState.m_mangledName.size())
throw ParseException(QLatin1String("Unconsumed input"));
if (m_parseState.m_parseStack.count() != 1) {
throw ParseException(QString::fromLocal8Bit("There are %1 elements on the parse stack; "
"expected one.").arg(m_parseState.m_parseStack.count()));
}
// Uncomment for debugging.
//m_parseState.stackTop()->print(0);
m_demangledName = m_parseState.stackTop()->toByteArray();
success = true;
} catch (const ParseException &p) {
m_errorString = QString::fromLocal8Bit("Parse error at index %1 of mangled name '%2': %3.")
.arg(m_parseState.m_pos).arg(mangledName, p.error);
success = false;
} catch (const InternalDemanglerException &e) {
m_errorString = QString::fromLocal8Bit("Internal demangler error at function %1, file %2, "
"line %3").arg(e.func, e.file).arg(e.line);
success = false;
}
m_parseState.m_parseStack.clear();
m_parseState.m_substitutions.clear();
m_parseState.m_templateParams.clear();
return success;
}
NameDemangler::NameDemangler() : d(new NameDemanglerPrivate) { }
NameDemangler::~NameDemangler()
{
delete d;
}
bool NameDemangler::demangle(const QString &mangledName)
{
return d->demangle(mangledName);
}
QString NameDemangler::errorString() const
{
return d->errorString();
}
QString NameDemangler::demangledName() const
{
return d->demangledName();
}
} // namespace Internal
} // namespace Debugger
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