tvl-depot/absl/base/log_severity.h
Abseil Team a02f62f456 Export of internal Abseil changes.
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5755b40f6025f3ca126070fc68adb8fde9a7f01b by Abseil Team <absl-team@google.com>:

Fix -Wextra-semi error.

PiperOrigin-RevId: 243215850

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3b6b6e18df9fbd233943cae460f0063f4efaa7c7 by Eric Fiselier <ericwf@google.com>:

Internal Change.

PiperOrigin-RevId: 243152671

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82eef03f246009c806c25607c5682547cb4ad21e by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 243151861

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c14e6340fca7070634e0ecfdf97833d930dd0e5d by Samuel Benzaquen <sbenza@google.com>:

Internal change

PiperOrigin-RevId: 243123590

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9abb7a6b22457c0aa72d72b3b9392efd226d302a by Andy Getzendanner <durandal@google.com>:

Implement operator<<(std::ostream &, absl::LogSeverity) so that absl::LogSeverity values can be streamed.

PiperOrigin-RevId: 243117646
GitOrigin-RevId: 5755b40f6025f3ca126070fc68adb8fde9a7f01b
Change-Id: I7ea607d8a4e803ad15a3090139271f58ad4173a3
2019-04-12 15:05:20 -04:00

71 lines
2.5 KiB
C++

// Copyright 2017 The Abseil Authors.
//
// 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
//
// https://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 ABSL_BASE_INTERNAL_LOG_SEVERITY_H_
#define ABSL_BASE_INTERNAL_LOG_SEVERITY_H_
#include <array>
#include <ostream>
#include "absl/base/attributes.h"
namespace absl {
// Four severity levels are defined. Logging APIs should terminate the program
// when a message is logged at severity `kFatal`; the other levels have no
// special semantics.
enum class LogSeverity : int {
kInfo = 0,
kWarning = 1,
kError = 2,
kFatal = 3,
};
// Returns an iterable of all standard `absl::LogSeverity` values, ordered from
// least to most severe.
constexpr std::array<absl::LogSeverity, 4> LogSeverities() {
return {{absl::LogSeverity::kInfo, absl::LogSeverity::kWarning,
absl::LogSeverity::kError, absl::LogSeverity::kFatal}};
}
// Returns the all-caps string representation (e.g. "INFO") of the specified
// severity level if it is one of the normal levels and "UNKNOWN" otherwise.
constexpr const char* LogSeverityName(absl::LogSeverity s) {
return s == absl::LogSeverity::kInfo
? "INFO"
: s == absl::LogSeverity::kWarning
? "WARNING"
: s == absl::LogSeverity::kError
? "ERROR"
: s == absl::LogSeverity::kFatal ? "FATAL" : "UNKNOWN";
}
// Values less than `kInfo` normalize to `kInfo`; values greater than `kFatal`
// normalize to `kError` (**NOT** `kFatal`).
constexpr absl::LogSeverity NormalizeLogSeverity(absl::LogSeverity s) {
return s < absl::LogSeverity::kInfo
? absl::LogSeverity::kInfo
: s > absl::LogSeverity::kFatal ? absl::LogSeverity::kError : s;
}
constexpr absl::LogSeverity NormalizeLogSeverity(int s) {
return NormalizeLogSeverity(static_cast<absl::LogSeverity>(s));
}
// The exact representation of a streamed `absl::LogSeverity` is deliberately
// unspecified; do not rely on it.
std::ostream& operator<<(std::ostream& os, absl::LogSeverity s);
} // namespace absl
#endif // ABSL_BASE_INTERNAL_LOG_SEVERITY_H_