tvl-depot/absl/flags/internal/commandlineflag.cc
Abseil Team 2796d500ae Export of internal Abseil changes
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b770d03c2f1042d399c3f9576e881691cbe962c4 by Abseil Team <absl-team@google.com>:

Avoid applying the workaround for MSVC's static initialization problems when using clang-cl.

PiperOrigin-RevId: 275870089

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2b8fc02ec49aeb5ad56cef20259cdd7f6ee0c917 by Abseil Team <absl-team@google.com>:

Document return values.

PiperOrigin-RevId: 275839042

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baa99064f9a28b188661df7fba989fcd558818af by Abseil Team <absl-team@google.com>:

Support "auto" and other uncommon builtin types in absl::debugging_internal::Demangle.

PiperOrigin-RevId: 275556195

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f9d5c6a3a0d374dbf105d6e2e9e0c8fa949ed187 by Gennadiy Rozental <rogeeff@google.com>:

Internal rework.

PiperOrigin-RevId: 275550005

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2679a77db5b26349e8c8b2059621af55d2fca139 by Mark Barolak <mbar@google.com>:

Remove a comment reference to the no longer extant ::string implementation.

PiperOrigin-RevId: 275531987

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7b427a7613c44a98c6f13da43b2bff2837ca6b19 by Derek Mauro <dmauro@google.com>:

Upgrade to Bazel 1.0.0 and CMake 3.15.4

PiperOrigin-RevId: 275500823

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81f7d20905debf9d1e300bd2e9899f88d27f632a by Derek Mauro <dmauro@google.com>:

Fix -Wimplicit-int-float-conversion warning in latest clang

PiperOrigin-RevId: 275492439
GitOrigin-RevId: b770d03c2f1042d399c3f9576e881691cbe962c4
Change-Id: I9b39dad524489f0d62c912d02e8ac43761c81e55
2019-10-21 14:35:27 -04:00

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2 KiB
C++

//
// Copyright 2019 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.
#include "absl/flags/internal/commandlineflag.h"
#include "absl/flags/usage_config.h"
namespace absl {
namespace flags_internal {
// The help message indicating that the commandline flag has been
// 'stripped'. It will not show up when doing "-help" and its
// variants. The flag is stripped if ABSL_FLAGS_STRIP_HELP is set to 1
// before including absl/flags/flag.h
// This is used by this file, and also in commandlineflags_reporting.cc
const char kStrippedFlagHelp[] = "\001\002\003\004 (unknown) \004\003\002\001";
absl::string_view CommandLineFlag::Typename() const {
// We do not store/report type in Abseil Flags, so that user do not rely on in
// at runtime
if (IsAbseilFlag() || IsRetired()) return "";
#define HANDLE_V1_BUILTIN_TYPE(t) \
if (IsOfType<t>()) { \
return #t; \
}
HANDLE_V1_BUILTIN_TYPE(bool);
HANDLE_V1_BUILTIN_TYPE(int32_t);
HANDLE_V1_BUILTIN_TYPE(int64_t);
HANDLE_V1_BUILTIN_TYPE(uint64_t);
HANDLE_V1_BUILTIN_TYPE(double);
#undef HANDLE_V1_BUILTIN_TYPE
if (IsOfType<std::string>()) {
return "string";
}
return "";
}
std::string CommandLineFlag::Filename() const {
return flags_internal::GetUsageConfig().normalize_filename(filename_);
}
std::string HelpText::GetHelpText() const {
if (help_function_) return help_function_();
if (help_message_) return help_message_;
return {};
}
} // namespace flags_internal
} // namespace absl