| // Copyright 2016 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| |
| #include "absl/time/internal/cctz/include/cctz/zone_info_source.h" |
| |
| namespace absl { |
| inline namespace lts_2018_12_18 { |
| namespace time_internal { |
| namespace cctz { |
| |
| // Defined out-of-line to avoid emitting a weak vtable in all TUs. |
| ZoneInfoSource::~ZoneInfoSource() {} |
| std::string ZoneInfoSource::Version() const { return std::string(); } |
| |
| } // namespace cctz |
| } // namespace time_internal |
| } // inline namespace lts_2018_12_18 |
| } // namespace absl |
| |
| namespace absl { |
| inline namespace lts_2018_12_18 { |
| namespace time_internal { |
| namespace cctz_extension { |
| |
| namespace { |
| |
| // A default for cctz_extension::zone_info_source_factory, which simply |
| // defers to the fallback factory. |
| std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource> DefaultFactory( |
| const std::string& name, |
| const std::function<std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource>( |
| const std::string& name)>& fallback_factory) { |
| return fallback_factory(name); |
| } |
| |
| } // namespace |
| |
| // A "weak" definition for cctz_extension::zone_info_source_factory. |
| // The user may override this with their own "strong" definition (see |
| // zone_info_source.h). |
| #if defined(_MSC_VER) |
| extern ZoneInfoSourceFactory zone_info_source_factory; |
| extern ZoneInfoSourceFactory default_factory; |
| ZoneInfoSourceFactory default_factory = DefaultFactory; |
| #if defined(_M_IX86) |
| #pragma comment( \ |
| linker, \ |
| "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZA=?default_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZA") |
| #elif defined(_M_IA_64) || defined(_M_AMD64) |
| #pragma comment( \ |
| linker, \ |
| "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZEA=?default_factory@cctz_extension@time_internal@lts_2018_12_18@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@lts_2018_12_18@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@6@@ZEA") |
| #else |
| #error Unsupported MSVC platform |
| #endif |
| #else // _MSC_VER |
| #if !defined(__has_attribute) |
| #define __has_attribute(x) 0 |
| #endif |
| #if __has_attribute(weak) || defined(__GNUC__) |
| ZoneInfoSourceFactory zone_info_source_factory |
| __attribute__((weak)) = DefaultFactory; |
| #else |
| // Make it a "strong" definition if we have no other choice. |
| ZoneInfoSourceFactory zone_info_source_factory = DefaultFactory; |
| #endif |
| #endif // _MSC_VER |
| |
| } // namespace cctz_extension |
| } // namespace time_internal |
| } // inline namespace lts_2018_12_18 |
| } // namespace absl |