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utilities: TypeId: store name of type
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DH 2024-11-12 13:01:15 +03:00
parent aaec1484a1
commit 676aa359e7
1 changed files with 20 additions and 8 deletions
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28
rx/include/rx/TypeId.hpp
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@ -1,35 +1,47 @@
#pragma once
#include "refl.hpp"
#include <compare>
#include <cstddef>
#include <functional>
namespace rx {
namespace detail {
template <typename> char mRawTypeId = 0;
template <typename T> constexpr const void *getTypeIdImpl() {
template <typename T> constexpr std::string_view mRawTypeId = getNameOf<T>();
template <typename T>
[[nodiscard]] constexpr const std::string_view *getTypeIdImpl() {
return &mRawTypeId<T>;
}
} // namespace detail
class TypeId {
const void *mId = detail::getTypeIdImpl<void>();
const std::string_view *mId = detail::getTypeIdImpl<void>();
public:
constexpr const void *getOpaque() const { return mId; }
[[nodiscard]] constexpr const void *getOpaque() const { return mId; }
constexpr static TypeId createFromOpaque(const void *id) {
[[nodiscard]] constexpr static TypeId createFromOpaque(const void *id) {
TypeId result;
result.mId = id;
result.mId = static_cast<const std::string_view *>(id);
return result;
}
template <typename T> constexpr static TypeId get() {
return createFromOpaque(detail::getTypeIdImpl<T>());
template <typename T> [[nodiscard]] constexpr static TypeId get() {
TypeId result;
result.mId = detail::getTypeIdImpl<T>();
return result;
}
[[nodiscard]] constexpr std::string_view getName() const { return *mId; }
constexpr auto operator<=>(const TypeId &other) const = default;
};
template <typename... Types>
constexpr std::array<TypeId, sizeof...(Types)> getTypeIds() {
return std::array<TypeId, sizeof...(Types)>{TypeId::get<Types>()...};
}
} // namespace rx
namespace std {