ForwardAwaiter.h

#pragma once
 
#include <coroutine>
 
namespace ll::coro {
template <typename T>
struct ForwardAwaiter {
    [[nodiscard]] constexpr ForwardAwaiter(T val) : t(std::move(val)) {}
 
    constexpr bool await_ready() const noexcept { return true; }
    constexpr void await_suspend(std::coroutine_handle<>) const noexcept {}
    constexpr T    await_resume() noexcept { return std::move(t); }
 
    T t;
};
template <>
struct ForwardAwaiter<void> {
    constexpr bool await_ready() const noexcept { return true; }
    constexpr void await_suspend(std::coroutine_handle<>) const noexcept {}
    constexpr void await_resume() const noexcept {}
};
} // namespace ll::coro