tdesktop/Telegram/SourceFiles/codegen/common/cpp_file.cpp

132 lines
3.6 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "codegen/common/cpp_file.h"
#include <QtCore/QFileInfo>
#include <QtCore/QDir>
namespace codegen {
namespace common {
namespace {
void writeLicense(QTextStream &stream, const ProjectInfo &project) {
stream << "\
/*\n\
WARNING! All changes made in this file will be lost!\n\
Created from '" << project.source << "' by '" << project.name << "'\n\
\n\
This file is part of Telegram Desktop,\n\
the official desktop version of Telegram messaging app, see https://telegram.org\n\
\n\
Telegram Desktop is free software: you can redistribute it and/or modify\n\
it under the terms of the GNU General Public License as published by\n\
the Free Software Foundation, either version 3 of the License, or\n\
(at your option) any later version.\n\
\n\
It is distributed in the hope that it will be useful,\n\
but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
GNU General Public License for more details.\n\
\n\
In addition, as a special exception, the copyright holders give permission\n\
to link the code of portions of this program with the OpenSSL library.\n\
\n\
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE\n\
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org\n\
*/\n";
}
} // namespace
CppFile::CppFile(const QString &path, const ProjectInfo &project)
: stream_(&content_)
, forceReGenerate_(project.forceReGenerate) {
bool cpp = path.toLower().endsWith(".cpp");
QFileInfo info(path);
info.dir().mkpath(".");
filepath_ = info.absoluteFilePath();
writeLicense(stream_, project);
if (cpp) {
include(info.baseName() + ".h").newline();
} else {
stream() << "#pragma once";
newline().newline();
}
}
CppFile &CppFile::include(const QString &header) {
stream() << "#include \"" << header << "\"";
return newline();
}
CppFile &CppFile::pushNamespace(const QString &name) {
namespaces_.push_back(name);
stream() << "namespace";
if (!name.isEmpty()) {
stream() << ' ' << name;
}
stream() << " {";
return newline();
}
CppFile &CppFile::popNamespace() {
if (namespaces_.isEmpty()) {
return *this;
}
auto name = namespaces_.back();
namespaces_.pop_back();
stream() << "} // namespace";
if (!name.isEmpty()) {
stream() << ' ' << name;
}
return newline();
}
bool CppFile::finalize() {
while (!namespaces_.isEmpty()) {
popNamespace();
}
stream_.flush();
QFile file(filepath_);
if (!forceReGenerate_ && file.open(QIODevice::ReadOnly)) {
if (file.readAll() == content_) {
file.close();
return true;
}
file.close();
}
if (!file.open(QIODevice::WriteOnly)) {
return false;
}
if (file.write(content_) != content_.size()) {
return false;
}
return true;
}
} // namespace common
} // namespace codegen