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refl: accept enums without valid 0 members

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DH 2024-11-20 23:12:34 +03:00
parent b6556e83ee
commit fd44e4f960
1 changed files with 8 additions and 9 deletions
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17
rx/include/rx/refl.hpp
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@ -133,18 +133,17 @@ namespace detail {
template <typename EnumT, std::size_t N = 0> template <typename EnumT, std::size_t N = 0>
requires std::is_enum_v<EnumT> requires std::is_enum_v<EnumT>
constexpr auto calcFieldCount() { constexpr auto calcFieldCount() {
if constexpr (requires { EnumT::Count; }) {
if constexpr (!requires { getNameOf<EnumT(N)>()[0]; }) { return static_cast<std::size_t>(EnumT::Count);
} else if constexpr (requires { EnumT::_count; }) {
return static_cast<std::size_t>(EnumT::_count);
} else if constexpr (requires { EnumT::count; }) {
return static_cast<std::size_t>(EnumT::count);
} else if constexpr (!requires { getNameOf<EnumT(N)>()[0]; }) {
return N; return N;
} else { } else {
constexpr auto c = getNameOf<EnumT(N)>()[0]; constexpr auto c = getNameOf<EnumT(N)>()[0];
if constexpr (requires { EnumT::Count; }) { if constexpr (!requires { getNameOf<EnumT(N)>()[0]; }) {
return static_cast<std::size_t>(EnumT::Count);
} else if constexpr (requires { EnumT::_count; }) {
return static_cast<std::size_t>(EnumT::_count);
} else if constexpr (requires { EnumT::count; }) {
return static_cast<std::size_t>(EnumT::count);
} else if constexpr (!requires { getNameOf<EnumT(N)>()[0]; }) {
return N; return N;
} else if constexpr (c >= '0' && c <= '9') { } else if constexpr (c >= '0' && c <= '9') {
return N; return N;