feat(reflect-cpp): Switched from glaze -> reflect cpp
A bug was discovered in glaze which prevented valid toml output. We have switched to toml++ and reflect-cpp. The interface has remained the same so this should not break any code
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158
build-config/reflect-cpp/include/rfl/thirdparty/enchantum/details/enchantum_msvc.hpp
vendored
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158
build-config/reflect-cpp/include/rfl/thirdparty/enchantum/details/enchantum_msvc.hpp
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@@ -0,0 +1,158 @@
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#pragma once
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#include "../common.hpp"
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#include "generate_arrays.hpp"
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#include "string_view.hpp"
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#include <array>
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#include <cassert>
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namespace enchantum {
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namespace details {
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#define SZC(x) (sizeof(x) - 1)
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template<typename>
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constexpr auto type_name_func_size() noexcept
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{
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// (sizeof("auto __cdecl enchantum::details::type_name_func<") - 1)
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return SZC(__FUNCSIG__) - SZC("auto __cdecl enchantum::details::type_name_func_size<enum ") -
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SZC(">(void) noexcept");
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}
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template<auto Enum>
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constexpr auto enum_in_array_name() noexcept
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{
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string_view s = __FUNCSIG__ + sizeof("auto __cdecl enchantum::details::enum_in_array_name<") - 1;
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s.remove_suffix(sizeof(">(void) noexcept") - 1);
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if constexpr (ScopedEnum<decltype(Enum)>) {
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if (s.front() == '(') {
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s.remove_prefix(sizeof("(enum ") - 1);
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s.remove_suffix(sizeof(")0x0") - 1);
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return s;
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}
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return s.substr(0, s.rfind("::"));
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}
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else {
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if (s.front() == '(') {
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s.remove_prefix(sizeof("(enum ") - 1);
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s.remove_suffix(sizeof(")0x0") - 1);
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}
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if (const auto pos = s.rfind("::"); pos != s.npos)
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return s.substr(0, pos);
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return string_view();
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}
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}
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template<auto Array>
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constexpr auto var_name() noexcept
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{
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//auto __cdecl f<class std::array<enum `anonymous namespace'::UnscopedAnon,32>{enum `anonymous-namespace'::UnscopedAnon
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using T = typename decltype(Array)::value_type;
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#define SZC(x) (sizeof(x) - 1)
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std::size_t funcsig_off = SZC("auto __cdecl enchantum::details::var_name<class std::array<enum ");
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constexpr auto type_name_len = enchantum::details::type_name_func_size<T>();
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funcsig_off += type_name_len + SZC(",");
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constexpr auto Size = Array.size();
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// clang-format off
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funcsig_off += Size < 10 ? 1
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: Size < 100 ? 2
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: Size < 1000 ? 3
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: Size < 10000 ? 4
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: Size < 100000 ? 5
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: Size < 1000000 ? 6
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: Size < 10000000 ? 7
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: Size < 100000000 ? 8
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: Size < 1000000000 ? 9
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: 10;
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// clang-format on
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funcsig_off += SZC(">{enum ") + type_name_len;
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return string_view(__FUNCSIG__ + funcsig_off, SZC(__FUNCSIG__) - funcsig_off - (sizeof("}>(void) noexcept") - 1));
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}
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#undef SZC
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template<auto Copy>
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inline constexpr auto static_storage_for = Copy;
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template<typename E, typename Pair, auto Array, bool ShouldNullTerminate>
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constexpr auto get_elements()
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{
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constexpr auto type_name_len = details::type_name_func_size<E>();
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auto str = var_name<Array>();
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struct RetVal {
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std::array<Pair, Array.size()> pairs{};
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std::size_t total_string_length = 0;
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std::size_t valid_count = 0;
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} ret;
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std::size_t index = 0;
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constexpr auto enum_in_array_len = details::enum_in_array_name<E{}>().size();
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while (index < Array.size()) {
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if (str.front() == '(') {
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str.remove_prefix(sizeof("(enum ") - 1 + type_name_len + sizeof(")0x0") - 1); // there is atleast 1 base 16 hex digit
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if (const auto commapos = str.find(','); commapos != str.npos)
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str.remove_prefix(commapos + 1);
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}
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else {
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if constexpr (enum_in_array_len != 0)
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str.remove_prefix(enum_in_array_len + sizeof("::") - 1);
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if constexpr (details::prefix_length_or_zero<E> != 0)
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str.remove_prefix(details::prefix_length_or_zero<E>);
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const auto commapos = str.find(',');
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const auto name = str.substr(0, commapos);
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ret.pairs[ret.valid_count] = Pair{Array[index], name};
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ret.total_string_length += name.size() + ShouldNullTerminate;
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if (commapos != str.npos)
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str.remove_prefix(commapos + 1);
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++ret.valid_count;
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}
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++index;
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}
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return ret;
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}
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template<typename E, typename Pair, bool ShouldNullTerminate>
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constexpr auto reflect() noexcept
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{
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constexpr auto Min = enum_traits<E>::min;
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constexpr auto Max = enum_traits<E>::max;
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constexpr auto elements = details::get_elements<E, Pair, details::generate_arrays<E, Min, Max>(), ShouldNullTerminate>();
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constexpr auto strings = [elements]() {
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std::array<char, elements.total_string_length> strings;
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for (std::size_t _i = 0, index = 0; _i < elements.valid_count; ++_i) {
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const auto& [_, s] = elements.pairs[_i];
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for (std::size_t i = 0; i < s.size(); ++i)
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strings[index++] = s[i];
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if constexpr (ShouldNullTerminate)
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strings[index++] = '\0';
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}
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return strings;
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}();
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std::array<Pair, elements.valid_count> ret;
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constexpr const auto* str = static_storage_for<strings>.data();
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for (std::size_t i = 0, string_index = 0; i < elements.valid_count; ++i) {
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const auto& [e, s] = elements.pairs[i];
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auto& [re, rs] = ret[i];
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re = e;
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rs = {str + string_index, str + string_index + s.size()};
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string_index += s.size() + ShouldNullTerminate;
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}
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return ret;
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}
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} // namespace details
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} // namespace enchantum
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