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// Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef INCLUDED_SRC_BUILDTOOL_LOGGING_LOG_LEVEL_HPP
#define INCLUDED_SRC_BUILDTOOL_LOGGING_LOG_LEVEL_HPP
#include <algorithm>
#include <cmath>
#include <string>
#include <type_traits>
#include <gsl/gsl>
enum class LogLevel {
Error, ///< Error messages, fatal errors
Warning, ///< Warning messages, recoverable situations that shouldn't occur
Info, ///< Informative messages, such as reporting status or statistics
Progress, ///< Information about the current progress of the build
Performance, ///< Information about performance issues
Debug, ///< Debug messages, such as details from internal processes
Trace ///< Trace messages, verbose details such as function calls
};
constexpr auto kFirstLogLevel = LogLevel::Error;
constexpr auto kLastLogLevel = LogLevel::Trace;
[[nodiscard]] static inline auto ToLogLevel(
std::underlying_type_t<LogLevel> level) -> LogLevel {
return std::min(std::max(static_cast<LogLevel>(level), kFirstLogLevel),
kLastLogLevel);
}
[[nodiscard]] static inline auto ToLogLevel(double level) -> LogLevel {
if (level < static_cast<double>(kFirstLogLevel)) {
return kFirstLogLevel;
}
if (level > static_cast<double>(kLastLogLevel)) {
return kLastLogLevel;
}
// Now we're in range, so we can round and cast.
try {
return ToLogLevel(
static_cast<std::underlying_type_t<LogLevel>>(std::lround(level)));
} catch (...) {
// should not happen, but chose the most conservative value
return kLastLogLevel;
}
}
[[nodiscard]] static inline auto LogLevelToString(LogLevel level)
-> std::string {
switch (level) {
case LogLevel::Error:
return "ERROR";
case LogLevel::Warning:
return "WARN";
case LogLevel::Info:
return "INFO";
case LogLevel::Progress:
return "PROG";
case LogLevel::Performance:
return "PERF";
case LogLevel::Debug:
return "DEBUG";
case LogLevel::Trace:
return "TRACE";
}
Ensures(false); // unreachable
}
#endif // INCLUDED_SRC_BUILDTOOL_LOGGING_LOG_LEVEL_HPP
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