#pragma once

#include <utility>
#include <variant>

template <class... Ts>
struct Overloaded : Ts...
{
	using Ts::operator()...;
};
template <class... Ts>
Overloaded(Ts...) -> Overloaded<Ts...>;

template <class... Args>
struct VariantCastProxy
{
	std::variant<Args...> v;

	template <class... ToArgs>
	operator std::variant<ToArgs...>() const
	{
		return std::visit(
			[](auto&& arg) -> std::variant<ToArgs...> { return arg; },
			v);
	}
};

/// Use snake_case naming to align with `static_cast`, `dynamic_cast`, etc..
template <class... Args>
auto variant_cast(std::variant<Args...> v) -> VariantCastProxy<Args...>
{
	return { std::move(v) };
}