Abseil Common Libraries (C++) (grcp 依赖)
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67 lines
2.0 KiB
67 lines
2.0 KiB
// |
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// Copyright 2019 The Abseil Authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// https://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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#include "absl/flags/internal/commandlineflag.h" |
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#include "absl/flags/usage_config.h" |
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namespace absl { |
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namespace flags_internal { |
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// The help message indicating that the commandline flag has been |
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// 'stripped'. It will not show up when doing "-help" and its |
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// variants. The flag is stripped if ABSL_FLAGS_STRIP_HELP is set to 1 |
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// before including absl/flags/flag.h |
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// This is used by this file, and also in commandlineflags_reporting.cc |
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const char kStrippedFlagHelp[] = "\001\002\003\004 (unknown) \004\003\002\001"; |
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absl::string_view CommandLineFlag::Typename() const { |
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// We do not store/report type in Abseil Flags, so that user do not rely on in |
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// at runtime |
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if (IsAbseilFlag() || IsRetired()) return ""; |
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#define HANDLE_V1_BUILTIN_TYPE(t) \ |
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if (IsOfType<t>()) { \ |
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return #t; \ |
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} |
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HANDLE_V1_BUILTIN_TYPE(bool); |
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HANDLE_V1_BUILTIN_TYPE(int32_t); |
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HANDLE_V1_BUILTIN_TYPE(int64_t); |
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HANDLE_V1_BUILTIN_TYPE(uint64_t); |
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HANDLE_V1_BUILTIN_TYPE(double); |
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#undef HANDLE_V1_BUILTIN_TYPE |
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if (IsOfType<std::string>()) { |
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return "string"; |
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} |
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return ""; |
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} |
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std::string CommandLineFlag::Filename() const { |
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return flags_internal::GetUsageConfig().normalize_filename(filename_); |
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} |
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std::string HelpText::GetHelpText() const { |
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if (help_function_) return help_function_(); |
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if (help_message_) return help_message_; |
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return {}; |
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} |
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} // namespace flags_internal |
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} // namespace absl
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