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clean-up

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neargye 2022-03-08 10:32:38 +02:00
parent 8267d2860b
commit 785b3f253d
1 changed files with 19 additions and 19 deletions
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38
include/magic_enum.hpp
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@ -137,8 +137,6 @@ static_assert((MAGIC_ENUM_RANGE_MAX - MAGIC_ENUM_RANGE_MIN) < (std::numeric_limi
// If need custom names for enum, add specialization enum_name for necessary enum type.
template <typename E>
constexpr string_view enum_name(E) noexcept {
static_assert(std::is_enum_v<E>, "magic_enum::customize::enum_name requires enum type.");
return {};
}
@ -146,6 +144,9 @@ constexpr string_view enum_name(E) noexcept {
namespace detail {
template <typename... T>
inline constexpr bool always_false_v = false;
template <typename T>
struct supported
#if defined(MAGIC_ENUM_SUPPORTED) && MAGIC_ENUM_SUPPORTED || defined(MAGIC_ENUM_NO_CHECK_SUPPORT)
@ -230,15 +231,22 @@ constexpr string_view pretty_name(string_view name) noexcept {
return {}; // Invalid name.
}
template<typename CharType>
constexpr auto to_lower([[maybe_unused]] CharType ch) noexcept -> std::enable_if_t<std::is_same_v<std::decay_t<CharType>, char>, char> {
class case_insensitive {
static constexpr char to_lower(char c) noexcept {
return (c >= 'A' && c <= 'Z') ? static_cast<char>(c + ('a' - 'A')) : c;
}
public:
template <typename L, typename R>
constexpr auto operator()([[maybe_unused]] L lhs, [[maybe_unused]] R rhs) noexcept -> std::enable_if_t<std::is_same_v<std::decay_t<L>, char> && std::is_same_v<std::decay_t<R>, char>, bool> {
#if defined(MAGIC_ENUM_ENABLE_NONASCII)
static_assert(!std::is_same_v<CharType, CharType>, "magic_enum::detail::to_lower not supported Non-ASCII feature.");
return {};
static_assert(always_false_v<L, R>, "magic_enum::case_insensitive not supported Non-ASCII feature.");
return false;
#else
return 'A' <= ch && ch <= 'Z' ? ch - 'A' + 'a' : ch;
return to_lower(lhs) == to_lower(rhs);
#endif
}
}
};
constexpr std::size_t find(string_view str, char c) noexcept {
#if defined(__clang__) && __clang_major__ < 9 && defined(__GLIBCXX__) || defined(_MSC_VER) && _MSC_VER < 1920 && !defined(__clang__)
@ -277,8 +285,8 @@ constexpr bool cmp_equal(string_view lhs, string_view rhs, [[maybe_unused]] Bina
constexpr bool workaround = false;
#endif
constexpr bool custom_predicate =
!std::is_same_v<std::decay_t<BinaryPredicate>, std::equal_to<char>> &&
!std::is_same_v<std::decay_t<BinaryPredicate>, std::equal_to<>>;
!std::is_same_v<std::decay_t<BinaryPredicate>, std::equal_to<char>> &&
!std::is_same_v<std::decay_t<BinaryPredicate>, std::equal_to<>>;
if constexpr (custom_predicate || workaround) {
if (lhs.size() != rhs.size()) {
@ -808,15 +816,7 @@ template <typename E>
}
// allows you to write magic_enum::enum_cast<foo>("bar", magic_enum::case_insensitive);
inline constexpr auto case_insensitive = [](auto lhs, auto rhs) noexcept
-> std::enable_if_t<std::is_same_v<std::decay_t<decltype(lhs)>, char> && std::is_same_v<std::decay_t<decltype(rhs)>, char>, bool> {
#if defined(MAGIC_ENUM_ENABLE_NONASCII)
static_assert(!std::is_same_v<decltype(lhs), decltype(lhs)>, "magic_enum::case_insensitive not supported Non-ASCII feature.");
return {};
#else
return detail::to_lower(lhs) == detail::to_lower(rhs);
#endif
};
inline constexpr auto case_insensitive = detail::case_insensitive{};
// Obtains enum value from name.
// Returns optional with enum value.