67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include <QtCore/QString>
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#include <iostream>
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namespace codegen {
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namespace common {
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// Common error codes.
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constexpr int kErrorFileNotFound = 101;
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constexpr int kErrorFileTooLarge = 102;
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constexpr int kErrorFileNotOpened = 103;
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constexpr int kErrorUnexpectedEndOfFile = 104;
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// Wrapper around std::ostream that adds '\n' to the end of the logging line.
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class LogStream {
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public:
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enum NullType {
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Null,
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};
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explicit LogStream(NullType) : final_(false) {
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}
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explicit LogStream(std::ostream &stream) : stream_(&stream) {
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}
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LogStream(LogStream &&other) : stream_(other.stream_), final_(other.final_) {
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other.final_ = false;
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}
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std::ostream *stream() const {
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return stream_;
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}
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~LogStream() {
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if (final_) {
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*stream_ << '\n';
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}
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}
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private:
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std::ostream *stream_ = nullptr;
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bool final_ = true;
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};
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template <typename T>
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LogStream operator<<(LogStream &&stream, T &&value) {
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if (auto ostream = stream.stream()) {
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*ostream << std::forward<T>(value);
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}
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return std::forward<LogStream>(stream);
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}
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// Outputs file name, line number and error code to std::err. Usage:
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// logError(kErrorFileTooLarge, filepath) << "file too large, size=" << size;
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LogStream logError(int code, const QString &filepath, int line = 0);
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void logSetWorkingPath(const QString &workingpath);
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static constexpr int kErrorInternal = 666;
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} // namespace common
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} // namespace codegen
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