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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmlerror.h"
#include <QtCore/qdebug.h>
#include <QtCore/qfile.h>
#include <QtCore/qstringlist.h>
QT_BEGIN_NAMESPACE
/*!
\class QmlError
\brief The QmlError class encapsulates a QML error
*/
class QmlErrorPrivate
{
public:
QmlErrorPrivate();
QUrl url;
QString description;
int line;
int column;
};
QmlErrorPrivate::QmlErrorPrivate()
: line(-1), column(-1)
{
}
/*!
Create an empty error object.
*/
QmlError::QmlError()
: d(0)
{
}
/*!
Create a copy of \a other.
*/
QmlError::QmlError(const QmlError &other)
: d(0)
{
*this = other;
}
/*!
Assign \a other to this error object.
*/
QmlError &QmlError::operator=(const QmlError &other)
{
if (!other.d) {
delete d;
d = 0;
} else {
if (!d) d = new QmlErrorPrivate;
d->url = other.d->url;
d->description = other.d->description;
d->line = other.d->line;
d->column = other.d->column;
}
return *this;
}
/*!
\internal
*/
QmlError::~QmlError()
{
delete d; d = 0;
}
/*!
Return true if this error is valid, otherwise false.
*/
bool QmlError::isValid() const
{
return d != 0;
}
/*!
Return the url for the file that caused this error.
*/
QUrl QmlError::url() const
{
if (d) return d->url;
else return QUrl();
}
/*!
Set the \a url for the file that caused this error.
*/
void QmlError::setUrl(const QUrl &url)
{
if (!d) d = new QmlErrorPrivate;
d->url = url;
}
/*!
Return the error description.
*/
QString QmlError::description() const
{
if (d) return d->description;
else return QString();
}
/*!
Set the error \a description.
*/
void QmlError::setDescription(const QString &description)
{
if (!d) d = new QmlErrorPrivate;
d->description = description;
}
/*!
Return the error line number.
*/
int QmlError::line() const
{
if (d) return d->line;
else return -1;
}
/*!
Set the error \a line number.
*/
void QmlError::setLine(int line)
{
if (!d) d = new QmlErrorPrivate;
d->line = line;
}
/*!
Return the error column number.
*/
int QmlError::column() const
{
if (d) return d->column;
else return -1;
}
/*!
Set the error \a column number.
*/
void QmlError::setColumn(int column)
{
if (!d) d = new QmlErrorPrivate;
d->column = column;
}
/*!
Return the error as a human readable string.
*/
QString QmlError::toString() const
{
QString rv;
rv = url().toString() + QLatin1String(":") + QString::number(line());
if(column() != -1)
rv += QLatin1String(":") + QString::number(column());
rv += QLatin1String(": ") + description();
return rv;
}
/*!
\relates QmlError
\fn QDebug operator<<(QDebug debug, const QmlError &error)
Output a human readable version of \a error to \a debug.
*/
QDebug operator<<(QDebug debug, const QmlError &error)
{
debug << qPrintable(error.toString());
QUrl url = error.url();
if (error.line() > 0 && url.scheme() == QLatin1String("file")) {
QString file = url.toLocalFile();
QFile f(file);
if (f.open(QIODevice::ReadOnly)) {
QByteArray data = f.readAll();
QTextStream stream(data, QIODevice::ReadOnly);
stream.setCodec("UTF-8");
const QString code = stream.readAll();
const QStringList lines = code.split(QLatin1Char('\n'));
if (lines.count() >= error.line()) {
const QString &line = lines.at(error.line() - 1);
debug << "\n " << qPrintable(line);
if(error.column() > 0) {
int column = qMax(0, error.column() - 1);
column = qMin(column, line.length());
QByteArray ind;
ind.reserve(column);
for (int i = 0; i < column; ++i) {
const QChar ch = line.at(i);
if (ch.isSpace())
ind.append(ch.unicode());
else
ind.append(' ');
}
ind.append('^');
debug << "\n " << ind.constData();
}
}
}
}
return debug;
}
QT_END_NAMESPACE
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