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use attorney::create_from and remove unnecessary conditional_t

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This commit is contained in:
Christos Stratopoulos 2019-12-10 13:27:05 -05:00
parent 4f220df1d7
commit fb7074cc87
1 changed files with 9 additions and 19 deletions
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28
include/continuable/detail/support/asio.hpp
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@ -30,6 +30,8 @@
#ifndef CONTINUABLE_DETAIL_ASIO_HPP_INCLUDED #ifndef CONTINUABLE_DETAIL_ASIO_HPP_INCLUDED
#define CONTINUABLE_DETAIL_ASIO_HPP_INCLUDED #define CONTINUABLE_DETAIL_ASIO_HPP_INCLUDED
#include <continuable/detail/core/base.hpp>
#if defined(ASIO_STANDALONE) #if defined(ASIO_STANDALONE)
#include <asio/async_result.hpp> #include <asio/async_result.hpp>
#include <asio/error_code.hpp> #include <asio/error_code.hpp>
@ -71,8 +73,7 @@
#endif #endif
#if defined(CTI_DETAIL_ASIO_HAS_NO_INTEGRATION) #if defined(CTI_DETAIL_ASIO_HAS_NO_INTEGRATION)
#error \ #error "First-class ASIO support for continuable requires the form of "\
"First-class ASIO support for continuable requires the form of "\
"`async_result` with an `initiate` static member function, which was added " \ "`async_result` with an `initiate` static member function, which was added " \
"in standalone ASIO 1.13.0 and Boost ASIO 1.70. Older versions can be " \ "in standalone ASIO 1.13.0 and Boost ASIO 1.70. Older versions can be " \
"integrated manually with `cti::promisify`." "integrated manually with `cti::promisify`."
@ -141,26 +142,15 @@ struct initiate_make_continuable;
template <typename... Args> template <typename... Args>
struct initiate_make_continuable<void(error_code_t, Args...)> { struct initiate_make_continuable<void(error_code_t, Args...)> {
using is_void_cti_t = std::integral_constant<bool, sizeof...(Args) == 0>;
#if defined(CTI_DETAIL_ASIO_HAS_EXPLICIT_RET_TYPE_INTEGRATION) #if defined(CTI_DETAIL_ASIO_HAS_EXPLICIT_RET_TYPE_INTEGRATION)
using erased_return_type = using erased_return_type = cti::continuable<Args...>;
std::conditional_t<is_void_cti_t::value, cti::continuable<>,
cti::continuable<Args...>>;
#endif #endif
template <typename Continuation, typename IsVoid = is_void_cti_t> template <typename Continuation>
auto operator()(Continuation&& continuation, auto operator()(Continuation&& continuation) {
std::enable_if_t<IsVoid::value>* = 0) { return detail::base::attorney::create_from(
return cti::make_continuable<void>( std::forward<Continuation>(continuation), detail::identity<Args...>{},
std::forward<Continuation>(continuation)); detail::util::ownership{});
}
template <typename Continuation, typename IsVoid = is_void_cti_t>
auto operator()(Continuation&& continuation,
std::enable_if_t<!IsVoid::value>* = 0) {
return cti::make_continuable<Args...>(
std::forward<Continuation>(continuation));
} }
}; };