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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
// Adapted from donated nonius code.
#ifndef CATCH_COMPLETE_INVOKE_HPP_INCLUDED
#define CATCH_COMPLETE_INVOKE_HPP_INCLUDED
#include <catch2/internal/catch_meta.hpp>
#include <catch2/internal/catch_move_and_forward.hpp>
namespace Catch {
namespace Benchmark {
namespace Detail {
template <typename T>
struct CompleteType { using type = T; };
template <>
struct CompleteType<void> { struct type {}; };
template <typename T>
using CompleteType_t = typename CompleteType<T>::type;
template <typename Result>
struct CompleteInvoker {
template <typename Fun, typename... Args>
static Result invoke(Fun&& fun, Args&&... args) {
return CATCH_FORWARD(fun)(CATCH_FORWARD(args)...);
}
};
template <>
struct CompleteInvoker<void> {
template <typename Fun, typename... Args>
static CompleteType_t<void> invoke(Fun&& fun, Args&&... args) {
CATCH_FORWARD(fun)(CATCH_FORWARD(args)...);
return {};
}
};
// invoke and not return void :(
template <typename Fun, typename... Args>
CompleteType_t<FunctionReturnType<Fun, Args...>> complete_invoke(Fun&& fun, Args&&... args) {
return CompleteInvoker<FunctionReturnType<Fun, Args...>>::invoke(CATCH_FORWARD(fun), CATCH_FORWARD(args)...);
}
} // namespace Detail
template <typename Fun>
Detail::CompleteType_t<FunctionReturnType<Fun>> user_code(Fun&& fun) {
return Detail::complete_invoke(CATCH_FORWARD(fun));
}
} // namespace Benchmark
} // namespace Catch
#endif // CATCH_COMPLETE_INVOKE_HPP_INCLUDED
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