with_traits.h

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#pragma once
#include <scl/macros.h>
#include <scl/tools/meta/type_mod.h>
#include <scl/tools/meta/fn_introspect.h>
#include <mutex>
#include <scl/exceptions/InvalidResource.h>

namespace scl{
    namespace async{
        template <class Resource>
        struct with_traits{
            template <class F>
            auto operator()(Resource& resource, F&& delegate) -> META::return_t<F> {
                throw scl::exceptions::InvalidResource{};
            }
        };

        template<>
        struct with_traits<std::mutex>{
            template <class F>
            auto operator()(std::mutex& mutex, F&& delegate) -> META::return_t<F> {
                std::lock_guard<decltype(mutex)> _{mutex};
                return std::forward<F>(delegate)();
            }
        };
    }
}