diff options
Diffstat (limited to 'src/qml/compiler/qv4compilationunitmapper.cpp')
-rw-r--r-- | src/qml/compiler/qv4compilationunitmapper.cpp | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/qml/compiler/qv4compilationunitmapper.cpp b/src/qml/compiler/qv4compilationunitmapper.cpp new file mode 100644 index 0000000000..2e1213464c --- /dev/null +++ b/src/qml/compiler/qv4compilationunitmapper.cpp @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** 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-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qv4compilationunitmapper_p.h" + +#include "qv4compileddata_p.h" +#include <QFileInfo> +#include <QDateTime> +#include <QCoreApplication> + +QT_BEGIN_NAMESPACE + +using namespace QV4; + +CompilationUnitMapper::CompilationUnitMapper() + : dataPtr(nullptr) +{ + +} + +CompilationUnitMapper::~CompilationUnitMapper() +{ + close(); +} + +bool CompilationUnitMapper::verifyHeader(const CompiledData::Unit *header, const QString &sourcePath, QString *errorString) +{ + if (strncmp(header->magic, CompiledData::magic_str, sizeof(header->magic))) { + *errorString = QStringLiteral("Magic bytes in the header do not match"); + return false; + } + + if (header->version != quint32(QV4_DATA_STRUCTURE_VERSION)) { + *errorString = QString::fromUtf8("V4 data structure version mismatch. Found %1 expected %2").arg(header->version, 0, 16).arg(QV4_DATA_STRUCTURE_VERSION, 0, 16); + return false; + } + + if (header->qtVersion != quint32(QT_VERSION)) { + *errorString = QString::fromUtf8("Qt version mismatch. Found %1 expected %2").arg(header->qtVersion, 0, 16).arg(QT_VERSION, 0, 16); + return false; + } + + { + QFileInfo sourceCode(sourcePath); + QDateTime sourceTimeStamp; + if (sourceCode.exists()) + sourceTimeStamp = sourceCode.lastModified(); + + // Files from the resource system do not have any time stamps, so fall back to the application + // executable. + if (!sourceTimeStamp.isValid()) + sourceTimeStamp = QFileInfo(QCoreApplication::applicationFilePath()).lastModified(); + + if (sourceTimeStamp.isValid() && sourceTimeStamp.toMSecsSinceEpoch() != header->sourceTimeStamp) { + *errorString = QStringLiteral("QML source file has a different time stamp than cached file."); + return false; + } + } + + return true; +} + +QT_END_NAMESPACE |