Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | // -*- C++ -*- |
|---|---|
| 2 | //===----------------------------------------------------------------------===// |
| 3 | // |
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // For information see https://libcxx.llvm.org/DesignDocs/TimeZone.html |
| 11 | |
| 12 | #ifndef _LIBCPP___CHRONO_TZDB_LIST_H |
| 13 | #define _LIBCPP___CHRONO_TZDB_LIST_H |
| 14 | |
| 15 | #include <version> |
| 16 | // Enable the contents of the header only when libc++ was built with experimental features enabled. |
| 17 | #if _LIBCPP_HAS_EXPERIMENTAL_TZDB |
| 18 | |
| 19 | # include <__chrono/time_zone.h> |
| 20 | # include <__chrono/tzdb.h> |
| 21 | # include <__config> |
| 22 | # include <__fwd/string.h> |
| 23 | # include <forward_list> |
| 24 | # include <string_view> |
| 25 | |
| 26 | # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 27 | # pragma GCC system_header |
| 28 | # endif |
| 29 | |
| 30 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 31 | |
| 32 | # if _LIBCPP_STD_VER >= 20 && _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM && _LIBCPP_HAS_LOCALIZATION |
| 33 | |
| 34 | namespace chrono { |
| 35 | |
| 36 | // TODO TZDB |
| 37 | // Libc++ recently switched to only export __ugly_names from the dylib. |
| 38 | // Since the library is still experimental the functions in this header |
| 39 | // should be adapted to this new style. The other tzdb headers should be |
| 40 | // evaluated too. |
| 41 | |
| 42 | class _LIBCPP_AVAILABILITY_TZDB tzdb_list { |
| 43 | public: |
| 44 | class __impl; // public to allow construction in dylib |
| 45 | _LIBCPP_HIDE_FROM_ABI explicit tzdb_list(__impl* __p) : __impl_(__p) { |
| 46 | _LIBCPP_ASSERT_NON_NULL(__impl_ != nullptr, "initialized time_zone without a valid pimpl object"); |
| 47 | } |
| 48 | _LIBCPP_EXPORTED_FROM_ABI ~tzdb_list(); |
| 49 | |
| 50 | tzdb_list(const tzdb_list&) = delete; |
| 51 | tzdb_list& operator=(const tzdb_list&) = delete; |
| 52 | |
| 53 | using const_iterator = forward_list<tzdb>::const_iterator; |
| 54 | |
| 55 | [[nodiscard]] _LIBCPP_HIDE_FROM_ABI const tzdb& front() const noexcept { return __front(); } |
| 56 | |
| 57 | _LIBCPP_HIDE_FROM_ABI const_iterator erase_after(const_iterator __p) { return __erase_after(__p); } |
| 58 | |
| 59 | [[nodiscard]] _LIBCPP_HIDE_FROM_ABI const_iterator begin() const noexcept { return __begin(); } |
| 60 | [[nodiscard]] _LIBCPP_HIDE_FROM_ABI const_iterator end() const noexcept { return __end(); } |
| 61 | |
| 62 | [[nodiscard]] _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const noexcept { return __cbegin(); } |
| 63 | [[nodiscard]] _LIBCPP_HIDE_FROM_ABI const_iterator cend() const noexcept { return __cend(); } |
| 64 | |
| 65 | [[nodiscard]] _LIBCPP_HIDE_FROM_ABI __impl& __implementation() { return *__impl_; } |
| 66 | |
| 67 | private: |
| 68 | [[nodiscard]] _LIBCPP_EXPORTED_FROM_ABI const tzdb& __front() const noexcept; |
| 69 | |
| 70 | _LIBCPP_EXPORTED_FROM_ABI const_iterator __erase_after(const_iterator __p); |
| 71 | |
| 72 | [[nodiscard]] _LIBCPP_EXPORTED_FROM_ABI const_iterator __begin() const noexcept; |
| 73 | [[nodiscard]] _LIBCPP_EXPORTED_FROM_ABI const_iterator __end() const noexcept; |
| 74 | |
| 75 | [[nodiscard]] _LIBCPP_EXPORTED_FROM_ABI const_iterator __cbegin() const noexcept; |
| 76 | [[nodiscard]] _LIBCPP_EXPORTED_FROM_ABI const_iterator __cend() const noexcept; |
| 77 | |
| 78 | __impl* __impl_; |
| 79 | }; |
| 80 | |
| 81 | [[nodiscard]] _LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI tzdb_list& get_tzdb_list(); |
| 82 | |
| 83 | [[nodiscard]] _LIBCPP_AVAILABILITY_TZDB _LIBCPP_HIDE_FROM_ABI inline const tzdb& get_tzdb() { |
| 84 | return get_tzdb_list().front(); |
| 85 | } |
| 86 | |
| 87 | [[nodiscard]] _LIBCPP_AVAILABILITY_TZDB _LIBCPP_HIDE_FROM_ABI inline const time_zone* locate_zone(string_view __name) { |
| 88 | return get_tzdb().locate_zone(__name); |
| 89 | } |
| 90 | |
| 91 | [[nodiscard]] _LIBCPP_AVAILABILITY_TZDB _LIBCPP_HIDE_FROM_ABI inline const time_zone* current_zone() { |
| 92 | return get_tzdb().current_zone(); |
| 93 | } |
| 94 | |
| 95 | _LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI const tzdb& reload_tzdb(); |
| 96 | |
| 97 | [[nodiscard]] _LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI string remote_version(); |
| 98 | |
| 99 | } // namespace chrono |
| 100 | |
| 101 | # endif // _LIBCPP_STD_VER >= 20 && _LIBCPP_HAS_TIME_ZONE_DATABASE && _LIBCPP_HAS_FILESYSTEM && |
| 102 | // _LIBCPP_HAS_LOCALIZATION |
| 103 | |
| 104 | _LIBCPP_END_NAMESPACE_STD |
| 105 | |
| 106 | #endif // _LIBCPP_HAS_EXPERIMENTAL_TZDB |
| 107 | |
| 108 | #endif // _LIBCPP___CHRONO_TZDB_LIST_H |
| 109 |
Warning: This file is not a C or C++ file. It does not have highlighting.