unsafe_forget.h

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#pragma once
 
#include "di/meta/operations.h"
#include "di/util/construct_at.h"
#include "di/util/move.h"
 
namespace di::util::detail {
template<typename T>
struct Union {
    Union() {}
    ~Union() {}
 
    union {
        T value;
    };
};
 
struct UnsafeForget {
    template<concepts::MoveConstructible T>
    static void operator()(T value) {
        auto slot = Union<T> {};
        di::construct_at(&slot.value, di::move(value));
    }
};
}
 
namespace di {
constexpr inline auto unsafe_forget = util::detail::UnsafeForget {};
}