2015-12-10 05:06:13 +02:00
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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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2019-06-03 14:21:30 +00:00
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** Copyright (C) 2016-2019 Ivailo Monev
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2015-12-10 05:06:13 +02:00
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**
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2019-06-03 13:38:02 +00:00
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** This file is part of the QtDeclarative module of the Katie Toolkit.
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2015-12-10 05:06:13 +02:00
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qdeclarativeerror.h"
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#include <QtCore/qdebug.h>
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#include <QtCore/qfile.h>
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#include <QtCore/qstringlist.h>
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QT_BEGIN_NAMESPACE
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/*!
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\class QDeclarativeError
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\since 4.7
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\brief The QDeclarativeError class encapsulates a QML error.
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QDeclarativeError includes a textual description of the error, as well
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as location information (the file, line, and column). The toString()
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method creates a single-line, human-readable string containing all of
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this information, for example:
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\code
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file:///home/user/test.qml:7:8: Invalid property assignment: double expected
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\endcode
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You can use qDebug() or qWarning() to output errors to the console. This method
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will attempt to open the file indicated by the error
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and include additional contextual information.
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\code
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file:///home/user/test.qml:7:8: Invalid property assignment: double expected
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y: "hello"
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^
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\endcode
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\sa QDeclarativeView::errors(), QDeclarativeComponent::errors()
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*/
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class QDeclarativeErrorPrivate
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{
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public:
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QDeclarativeErrorPrivate();
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QUrl url;
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QString description;
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int line;
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int column;
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};
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QDeclarativeErrorPrivate::QDeclarativeErrorPrivate()
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: line(-1), column(-1)
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{
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}
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/*!
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Creates an empty error object.
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*/
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QDeclarativeError::QDeclarativeError()
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: d(0)
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{
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}
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/*!
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Creates a copy of \a other.
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*/
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QDeclarativeError::QDeclarativeError(const QDeclarativeError &other)
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: d(0)
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{
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*this = other;
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}
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/*!
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Assigns \a other to this error object.
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*/
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QDeclarativeError &QDeclarativeError::operator=(const QDeclarativeError &other)
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{
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if (!other.d) {
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delete d;
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d = 0;
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} else {
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if (!d) d = new QDeclarativeErrorPrivate;
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d->url = other.d->url;
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d->description = other.d->description;
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d->line = other.d->line;
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d->column = other.d->column;
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}
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return *this;
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}
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/*!
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\internal
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*/
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QDeclarativeError::~QDeclarativeError()
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{
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delete d; d = 0;
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}
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/*!
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Returns true if this error is valid, otherwise false.
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*/
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bool QDeclarativeError::isValid() const
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{
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return d != 0;
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}
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/*!
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Returns the url for the file that caused this error.
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*/
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QUrl QDeclarativeError::url() const
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{
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if (d) return d->url;
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else return QUrl();
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}
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/*!
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Sets the \a url for the file that caused this error.
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*/
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void QDeclarativeError::setUrl(const QUrl &url)
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{
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if (!d) d = new QDeclarativeErrorPrivate;
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d->url = url;
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}
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/*!
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Returns the error description.
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*/
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QString QDeclarativeError::description() const
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{
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if (d) return d->description;
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else return QString();
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}
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/*!
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Sets the error \a description.
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*/
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void QDeclarativeError::setDescription(const QString &description)
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{
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if (!d) d = new QDeclarativeErrorPrivate;
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d->description = description;
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}
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/*!
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Returns the error line number.
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*/
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int QDeclarativeError::line() const
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{
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if (d) return d->line;
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else return -1;
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}
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/*!
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Sets the error \a line number.
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*/
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void QDeclarativeError::setLine(int line)
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{
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if (!d) d = new QDeclarativeErrorPrivate;
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d->line = line;
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}
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/*!
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Returns the error column number.
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*/
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int QDeclarativeError::column() const
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{
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if (d) return d->column;
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else return -1;
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}
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/*!
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Sets the error \a column number.
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*/
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void QDeclarativeError::setColumn(int column)
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{
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if (!d) d = new QDeclarativeErrorPrivate;
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d->column = column;
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}
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/*!
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Returns the error as a human readable string.
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*/
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QString QDeclarativeError::toString() const
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{
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QString rv;
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if (url().isEmpty()) {
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rv = QLatin1String("<Unknown File>");
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} else if (line() != -1) {
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rv = url().toString() + QLatin1Char(':') + QString::number(line());
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if(column() != -1)
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rv += QLatin1Char(':') + QString::number(column());
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} else {
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rv = url().toString();
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}
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rv += QLatin1String(": ") + description();
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return rv;
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}
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/*!
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\relates QDeclarativeError
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\fn QDebug operator<<(QDebug debug, const QDeclarativeError &error)
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Outputs a human readable version of \a error to \a debug.
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*/
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QDebug operator<<(QDebug debug, const QDeclarativeError &error)
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{
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debug << qPrintable(error.toString());
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QUrl url = error.url();
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if (error.line() > 0 && url.scheme() == QLatin1String("file")) {
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QString file = url.toLocalFile();
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QFile f(file);
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if (f.open(QIODevice::ReadOnly)) {
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QByteArray data = f.readAll();
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QTextStream stream(data, QIODevice::ReadOnly);
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#ifndef QT_NO_TEXTCODEC
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stream.setCodec("UTF-8");
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#endif
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const QString code = stream.readAll();
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const QStringList lines = code.split(QLatin1Char('\n'));
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if (lines.count() >= error.line()) {
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const QString &line = lines.at(error.line() - 1);
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debug << "\n " << qPrintable(line);
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if(error.column() > 0) {
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int column = qMax(0, error.column() - 1);
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column = qMin(column, line.length());
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QByteArray ind;
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ind.reserve(column);
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for (int i = 0; i < column; ++i) {
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const QChar ch = line.at(i);
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if (ch.isSpace())
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ind.append(ch.unicode());
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else
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ind.append(' ');
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}
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ind.append('^');
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debug << "\n " << ind.constData();
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}
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}
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}
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}
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return debug;
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}
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QT_END_NAMESPACE
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