Add magic_enum
This commit is contained in:
Seth Hillbrand
parent
4ccbbde54a
commit
d5d28e5b34
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@ -34,6 +34,7 @@ add_subdirectory( fmt )
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add_subdirectory( gzip-hpp )
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add_subdirectory( lemon )
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add_subdirectory( libcontext )
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add_subdirectory( magic_enum )
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add_subdirectory( markdown2html )
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add_subdirectory( nanodbc )
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add_subdirectory( nanosvg )
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@ -0,0 +1,7 @@
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add_library( magic_enum INTERFACE )
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target_include_directories( magic_enum INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/magic_enum )
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target_sources( magic_enum INTERFACE
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${CMAKE_CURRENT_SOURCE_DIR}/magic_enum/magic_enum.hpp
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)
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@ -0,0 +1,21 @@
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MIT License
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Copyright (c) 2019 - 2022 Daniil Goncharov
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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@ -0,0 +1,4 @@
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This directory contains the magic_enum project from https://github.com/Neargye/magic_enum
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It is licensed under MIT, with the license text in this directory.
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,76 @@
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// __ __ _ ______ _____
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// | \/ | (_) | ____| / ____|_ _
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// | \ / | __ _ __ _ _ ___ | |__ _ __ _ _ _ __ ___ | | _| |_ _| |_
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// | |\/| |/ _` |/ _` | |/ __| | __| | '_ \| | | | '_ ` _ \ | | |_ _|_ _|
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// | | | | (_| | (_| | | (__ | |____| | | | |_| | | | | | | | |____|_| |_|
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// |_| |_|\__,_|\__, |_|\___| |______|_| |_|\__,_|_| |_| |_| \_____|
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// __/ | https://github.com/Neargye/magic_enum
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// |___/ version 0.8.2
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//
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// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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// SPDX-License-Identifier: MIT
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// Copyright (c) 2019 - 2022 Daniil Goncharov <neargye@gmail.com>.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#ifndef NEARGYE_MAGIC_ENUM_FORMAT_HPP
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#define NEARGYE_MAGIC_ENUM_FORMAT_HPP
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#if !defined(__cpp_lib_format)
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# error "Format is not supported"
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#endif
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#include "magic_enum.hpp"
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#if !defined(MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT)
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# define MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT true
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# define MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT_AUTO_DEFINE
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#endif // MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT
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namespace magic_enum::customize {
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// customize enum to enable/disable automatic std::format
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template <typename E>
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constexpr bool enum_format_enabled() noexcept {
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return MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT;
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}
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} // magic_enum::customize
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#include <format>
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template <typename E>
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struct std::formatter<E, std::enable_if_t<std::is_enum_v<E> && magic_enum::customize::enum_format_enabled<E>(), char>> : std::formatter<std::string_view, char> {
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auto format(E e, format_context& ctx) {
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static_assert(std::is_same_v<char, string_view::value_type>, "formatter requires string_view::value_type type same as char.");
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using D = std::decay_t<E>;
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if constexpr (magic_enum::detail::supported<D>::value) {
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if (const auto name = magic_enum::enum_name<D, magic_enum::as_flags<magic_enum::detail::is_flags_v<D>>>(e); !name.empty()) {
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return std::formatter<std::string_view, char>::format(std::string_view{name.data(), name.size()}, ctx);
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}
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}
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return std::formatter<std::string_view, char>::format(std::to_string(magic_enum::enum_integer<D>(e)), ctx);
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}
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};
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#if defined(MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT_AUTO_DEFINE)
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# undef MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT
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# undef MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT_AUTO_DEFINE
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#endif // MAGIC_ENUM_DEFAULT_ENABLE_ENUM_FORMAT_AUTO_DEFINE
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#endif // NEARGYE_MAGIC_ENUM_FORMAT_HPP
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@ -0,0 +1,89 @@
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// __ __ _ ______ _____
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// | \/ | (_) | ____| / ____|_ _
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// | \ / | __ _ __ _ _ ___ | |__ _ __ _ _ _ __ ___ | | _| |_ _| |_
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// | |\/| |/ _` |/ _` | |/ __| | __| | '_ \| | | | '_ ` _ \ | | |_ _|_ _|
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// | | | | (_| | (_| | | (__ | |____| | | | |_| | | | | | | | |____|_| |_|
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// |_| |_|\__,_|\__, |_|\___| |______|_| |_|\__,_|_| |_| |_| \_____|
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// __/ | https://github.com/Neargye/magic_enum
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// |___/ version 0.8.2
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//
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// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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// SPDX-License-Identifier: MIT
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// Copyright (c) 2019 - 2022 Daniil Goncharov <neargye@gmail.com>.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#ifndef NEARGYE_MAGIC_ENUM_FUSE_HPP
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#define NEARGYE_MAGIC_ENUM_FUSE_HPP
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#include "magic_enum.hpp"
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namespace magic_enum {
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namespace detail {
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template <typename E>
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constexpr optional<std::uintmax_t> fuse_one_enum(optional<std::uintmax_t> hash, E value) noexcept {
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if (hash) {
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if (const auto index = enum_index(value)) {
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return (*hash << log2(enum_count<E>() + 1)) | *index;
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}
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}
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return {};
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}
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template <typename E>
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constexpr optional<std::uintmax_t> fuse_enum(E value) noexcept {
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return fuse_one_enum(0, value);
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}
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template <typename E, typename... Es>
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constexpr optional<std::uintmax_t> fuse_enum(E head, Es... tail) noexcept {
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return fuse_one_enum(fuse_enum(tail...), head);
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}
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template <typename... Es>
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constexpr auto typesafe_fuse_enum(Es... values) noexcept {
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enum class enum_fuse_t : std::uintmax_t;
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const auto fuse = fuse_enum(values...);
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if (fuse) {
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return optional<enum_fuse_t>{static_cast<enum_fuse_t>(*fuse)};
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}
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return optional<enum_fuse_t>{};
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}
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} // namespace magic_enum::detail
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// Returns a bijective mix of several enum values. This can be used to emulate 2D switch/case statements.
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template <typename... Es>
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[[nodiscard]] constexpr auto enum_fuse(Es... values) noexcept {
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static_assert((std::is_enum_v<std::decay_t<Es>> && ...), "magic_enum::enum_fuse requires enum type.");
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static_assert(sizeof...(Es) >= 2, "magic_enum::enum_fuse requires at least 2 values.");
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static_assert((detail::log2(enum_count<std::decay_t<Es>>() + 1) + ...) <= (sizeof(std::uintmax_t) * 8), "magic_enum::enum_fuse does not work for large enums");
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#if defined(MAGIC_ENUM_NO_TYPESAFE_ENUM_FUSE)
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const auto fuse = detail::fuse_enum<std::decay_t<Es>...>(values...);
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#else
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const auto fuse = detail::typesafe_fuse_enum<std::decay_t<Es>...>(values...);
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#endif
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return assert(fuse), fuse;
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}
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} // namespace magic_enum
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#endif // NEARGYE_MAGIC_ENUM_FUSE_HPP
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@ -0,0 +1,192 @@
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// __ __ _ ______ _____
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// | \/ | (_) | ____| / ____|_ _
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// | \ / | __ _ __ _ _ ___ | |__ _ __ _ _ _ __ ___ | | _| |_ _| |_
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// | |\/| |/ _` |/ _` | |/ __| | __| | '_ \| | | | '_ ` _ \ | | |_ _|_ _|
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// | | | | (_| | (_| | | (__ | |____| | | | |_| | | | | | | | |____|_| |_|
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// |_| |_|\__,_|\__, |_|\___| |______|_| |_|\__,_|_| |_| |_| \_____|
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// __/ | https://github.com/Neargye/magic_enum
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// |___/ version 0.8.2
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//
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// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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// SPDX-License-Identifier: MIT
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// Copyright (c) 2019 - 2022 Daniil Goncharov <neargye@gmail.com>.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#ifndef NEARGYE_MAGIC_ENUM_SWITCH_HPP
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#define NEARGYE_MAGIC_ENUM_SWITCH_HPP
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#include "magic_enum.hpp"
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namespace magic_enum {
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namespace detail {
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struct default_result_type {};
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template <typename T>
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struct identity {
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using type = T;
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};
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struct nonesuch {};
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template <typename F, typename V, bool = std::is_invocable_v<F, V>>
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struct invoke_result : identity<nonesuch> {};
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template <typename F, typename V>
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struct invoke_result<F, V, true> : std::invoke_result<F, V> {};
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template <typename F, typename V>
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using invoke_result_t = typename invoke_result<F, V>::type;
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template <typename E, typename F, std::size_t... I>
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constexpr auto common_invocable(std::index_sequence<I...>) noexcept {
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static_assert(is_enum_v<E>, "magic_enum::detail::invocable_index requires enum type.");
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if constexpr (count_v<E> == 0) {
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return identity<nonesuch>{};
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} else {
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return std::common_type<invoke_result_t<F, enum_constant<values_v<E>[I]>>...>{};
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}
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}
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template <typename E, typename Result, typename F>
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constexpr auto result_type() noexcept {
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static_assert(is_enum_v<E>, "magic_enum::detail::result_type requires enum type.");
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constexpr auto seq = std::make_index_sequence<detail::count_v<E>>{};
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using R = typename decltype(common_invocable<E, F>(seq))::type;
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if constexpr (std::is_same_v<Result, default_result_type>) {
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if constexpr (std::is_same_v<R, nonesuch>) {
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return identity<void>{};
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} else {
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return identity<R>{};
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}
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} else {
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if constexpr (std::is_convertible_v<R, Result>) {
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return identity<Result>{};
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} else if constexpr (std::is_convertible_v<Result, R>) {
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return identity<R>{};
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} else {
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return identity<nonesuch>{};
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}
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}
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}
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template <typename T, typename Result, typename F, typename D = std::decay_t<T>, typename R = typename decltype(result_type<D, Result, F>())::type>
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using result_t = std::enable_if_t<std::is_enum_v<D> && !std::is_same_v<R, nonesuch>, R>;
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#if !defined(MAGIC_ENUM_ENABLE_HASH)
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template <typename T = void>
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inline constexpr auto default_result_type_lambda = []() noexcept(std::is_nothrow_default_constructible_v<T>) { return T{}; };
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template <>
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inline constexpr auto default_result_type_lambda<void> = []() noexcept {};
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template <typename R, typename F, typename... Args>
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constexpr R invoke_r(F&& f, Args&&... args) noexcept(std::is_nothrow_invocable_r_v<R, F, Args...>) {
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if constexpr (std::is_void_v<R>) {
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std::forward<F>(f)(std::forward<Args>(args)...);
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} else {
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return static_cast<R>(std::forward<F>(f)(std::forward<Args>(args)...));
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}
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}
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template <std::size_t I, std::size_t End, typename R, typename E, typename F, typename Def>
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constexpr decltype(auto) constexpr_switch_impl(F&& f, E value, Def&& def) {
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if constexpr(I < End) {
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constexpr auto v = enum_constant<enum_value<E, I>()>{};
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if (value == v) {
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if constexpr (std::is_invocable_r_v<R, F, decltype(v)>) {
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return invoke_r<R>(std::forward<F>(f), v);
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} else {
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return def();
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}
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} else {
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return constexpr_switch_impl<I + 1, End, R>(std::forward<F>(f), value, std::forward<Def>(def));
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}
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} else {
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return def();
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}
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}
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template <typename R, typename E, typename F, typename Def>
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constexpr decltype(auto) constexpr_switch(F&& f, E value, Def&& def) {
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static_assert(is_enum_v<E>, "magic_enum::detail::constexpr_switch requires enum type.");
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if constexpr (count_v<E> == 0) {
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return def();
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} else {
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return constexpr_switch_impl<0, count_v<E>, R>(std::forward<F>(f), value, std::forward<Def>(def));
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}
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}
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#endif
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} // namespace magic_enum::detail
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template <typename Result = detail::default_result_type, typename E, typename F, typename R = detail::result_t<E, Result, F>>
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constexpr decltype(auto) enum_switch(F&& f, E value) {
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using D = std::decay_t<E>;
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static_assert(std::is_enum_v<D>, "magic_enum::enum_switch requires enum type.");
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#if defined(MAGIC_ENUM_ENABLE_HASH)
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return detail::constexpr_switch<&detail::values_v<D>, detail::case_call_t::value>(
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std::forward<F>(f),
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value,
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detail::default_result_type_lambda<R>);
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#else
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return detail::constexpr_switch<R, D>(
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std::forward<F>(f),
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value,
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detail::default_result_type_lambda<R>);
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#endif
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}
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template <typename Result, typename E, typename F, typename R = detail::result_t<E, Result, F>>
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constexpr decltype(auto) enum_switch(F&& f, E value, Result&& result) {
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using D = std::decay_t<E>;
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static_assert(std::is_enum_v<D>, "magic_enum::enum_switch requires enum type.");
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#if defined(MAGIC_ENUM_ENABLE_HASH)
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return detail::constexpr_switch<&detail::values_v<D>, detail::case_call_t::value>(
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std::forward<F>(f),
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value,
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[&result]() -> R { return std::forward<Result>(result); });
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#else
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return detail::constexpr_switch<R, D>(
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std::forward<F>(f),
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value,
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[&result]() -> R { return std::forward<Result>(result); });
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#endif
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}
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} // namespace magic_enum
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template <>
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struct std::common_type<magic_enum::detail::nonesuch, magic_enum::detail::nonesuch> : magic_enum::detail::identity<magic_enum::detail::nonesuch> {};
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template <typename T>
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struct std::common_type<T, magic_enum::detail::nonesuch> : magic_enum::detail::identity<T> {};
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||||
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||||
template <typename T>
|
||||
struct std::common_type<magic_enum::detail::nonesuch, T> : magic_enum::detail::identity<T> {};
|
||||
|
||||
#endif // NEARGYE_MAGIC_ENUM_SWITCH_HPP
|
||||
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Reference in New Issue