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author | Colin Cross <ccross@android.com> | 2022-04-13 03:15:00 +0000 |
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committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2022-04-13 03:15:00 +0000 |
commit | 6c9587948173932b64d97c288a947e43d2a2ac14 (patch) | |
tree | 2ce94d7f0804ccb77d1fa9b2a1bca00eecdff1e2 /third_party/abseil-cpp/absl/flags/reflection.h | |
parent | f60eaea2240ba9e1c508e8e0c91d39ee9fc47be5 (diff) | |
parent | 43d8f56cdc20240b37c36bf417dd0d6999bce738 (diff) | |
download | webrtc-6c9587948173932b64d97c288a947e43d2a2ac14.tar.gz |
Merge changes I0ab600cd,I1e74c64a am: 798f3afdf6 am: 2f9c4b2c3b am: a9167328fc am: 7563023510 am: 43d8f56cdcandroid-13.0.0_r83android-13.0.0_r82android-13.0.0_r81android-13.0.0_r80android-13.0.0_r79android-13.0.0_r78android-13.0.0_r77android-13.0.0_r76android-13.0.0_r75android-13.0.0_r74android-13.0.0_r73android-13.0.0_r72android-13.0.0_r71android-13.0.0_r70android-13.0.0_r69android-13.0.0_r68android-13.0.0_r67android-13.0.0_r66android-13.0.0_r65android-13.0.0_r64android-13.0.0_r63android-13.0.0_r62android-13.0.0_r61android-13.0.0_r60android-13.0.0_r59android-13.0.0_r58android-13.0.0_r56android-13.0.0_r54android-13.0.0_r53android-13.0.0_r52android-13.0.0_r51android-13.0.0_r50android-13.0.0_r49android-13.0.0_r48android-13.0.0_r47android-13.0.0_r46android-13.0.0_r45android-13.0.0_r44android-13.0.0_r43android-13.0.0_r42android-13.0.0_r41android-13.0.0_r40android-13.0.0_r39android-13.0.0_r38android-13.0.0_r37android-13.0.0_r36android-13.0.0_r35android-13.0.0_r34android-13.0.0_r33android-13.0.0_r32android13-qpr3-s9-releaseandroid13-qpr3-s8-releaseandroid13-qpr3-s7-releaseandroid13-qpr3-s6-releaseandroid13-qpr3-s5-releaseandroid13-qpr3-s4-releaseandroid13-qpr3-s3-releaseandroid13-qpr3-s2-releaseandroid13-qpr3-s14-releaseandroid13-qpr3-s13-releaseandroid13-qpr3-s12-releaseandroid13-qpr3-s11-releaseandroid13-qpr3-s10-releaseandroid13-qpr3-s1-releaseandroid13-qpr3-releaseandroid13-qpr3-c-s8-releaseandroid13-qpr3-c-s7-releaseandroid13-qpr3-c-s6-releaseandroid13-qpr3-c-s5-releaseandroid13-qpr3-c-s4-releaseandroid13-qpr3-c-s3-releaseandroid13-qpr3-c-s2-releaseandroid13-qpr3-c-s12-releaseandroid13-qpr3-c-s11-releaseandroid13-qpr3-c-s10-releaseandroid13-qpr3-c-s1-releaseandroid13-qpr2-s9-releaseandroid13-qpr2-s8-releaseandroid13-qpr2-s7-releaseandroid13-qpr2-s6-releaseandroid13-qpr2-s5-releaseandroid13-qpr2-s3-releaseandroid13-qpr2-s2-releaseandroid13-qpr2-s12-releaseandroid13-qpr2-s11-releaseandroid13-qpr2-s10-releaseandroid13-qpr2-s1-releaseandroid13-qpr2-releaseandroid13-qpr2-b-s1-releaseandroid13-d4-s2-releaseandroid13-d4-s1-releaseandroid13-d4-release
Original change: https://android-review.googlesource.com/c/platform/external/webrtc/+/2062410
Change-Id: I1aa9f459b825711b800cc65782979943a9151ec7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
Diffstat (limited to 'third_party/abseil-cpp/absl/flags/reflection.h')
-rw-r--r-- | third_party/abseil-cpp/absl/flags/reflection.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/third_party/abseil-cpp/absl/flags/reflection.h b/third_party/abseil-cpp/absl/flags/reflection.h new file mode 100644 index 0000000000..e6baf5de4b --- /dev/null +++ b/third_party/abseil-cpp/absl/flags/reflection.h @@ -0,0 +1,90 @@ +// +// Copyright 2020 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. +// +// ----------------------------------------------------------------------------- +// File: reflection.h +// ----------------------------------------------------------------------------- +// +// This file defines the routines to access and operate on an Abseil Flag's +// reflection handle. + +#ifndef ABSL_FLAGS_REFLECTION_H_ +#define ABSL_FLAGS_REFLECTION_H_ + +#include <string> + +#include "absl/base/config.h" +#include "absl/container/flat_hash_map.h" +#include "absl/flags/commandlineflag.h" +#include "absl/flags/internal/commandlineflag.h" + +namespace absl { +ABSL_NAMESPACE_BEGIN +namespace flags_internal { +class FlagSaverImpl; +} // namespace flags_internal + +// FindCommandLineFlag() +// +// Returns the reflection handle of an Abseil flag of the specified name, or +// `nullptr` if not found. This function will emit a warning if the name of a +// 'retired' flag is specified. +absl::CommandLineFlag* FindCommandLineFlag(absl::string_view name); + +// Returns current state of the Flags registry in a form of mapping from flag +// name to a flag reflection handle. +absl::flat_hash_map<absl::string_view, absl::CommandLineFlag*> GetAllFlags(); + +//------------------------------------------------------------------------------ +// FlagSaver +//------------------------------------------------------------------------------ +// +// A FlagSaver object stores the state of flags in the scope where the FlagSaver +// is defined, allowing modification of those flags within that scope and +// automatic restoration of the flags to their previous state upon leaving the +// scope. +// +// A FlagSaver can be used within tests to temporarily change the test +// environment and restore the test case to its previous state. +// +// Example: +// +// void MyFunc() { +// absl::FlagSaver fs; +// ... +// absl::SetFlag(&FLAGS_myFlag, otherValue); +// ... +// } // scope of FlagSaver left, flags return to previous state +// +// This class is thread-safe. + +class FlagSaver { + public: + FlagSaver(); + ~FlagSaver(); + + FlagSaver(const FlagSaver&) = delete; + void operator=(const FlagSaver&) = delete; + + private: + flags_internal::FlagSaverImpl* impl_; +}; + +//----------------------------------------------------------------------------- + +ABSL_NAMESPACE_END +} // namespace absl + +#endif // ABSL_FLAGS_REFLECTION_H_ |