coffee/continuable
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Make the multi flow less intrusive

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This commit is contained in:
Denis Blank 2017-09-28 04:25:29 +02:00
parent ff91ff7fc3
commit 687133870f
1 changed files with 7 additions and 10 deletions
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17
include/continuable/detail/base.hpp
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@ -65,8 +65,6 @@ namespace detail {
namespace base { namespace base {
/// A tag which is used to execute the continuation inside the current thread /// A tag which is used to execute the continuation inside the current thread
struct this_thread_executor_tag {}; struct this_thread_executor_tag {};
/// A tag which is used to continue with a real result
struct dispatch_result_tag {};
/// A tag which is used to continue with an error /// A tag which is used to continue with an error
struct dispatch_error_tag {}; struct dispatch_error_tag {};
@ -200,8 +198,7 @@ constexpr auto invoker_of(traits::identity<T>) {
auto result = std::forward<decltype(callback)>(callback)( auto result = std::forward<decltype(callback)>(callback)(
std::forward<decltype(args)>(args)...); std::forward<decltype(args)>(args)...);
std::forward<decltype(next_callback)>(next_callback)( std::forward<decltype(next_callback)>(next_callback)(std::move(result));
dispatch_result_tag{}, std::move(result));
}, },
traits::identity_of<T>()); traits::identity_of<T>());
} }
@ -213,8 +210,7 @@ constexpr auto invoker_of(traits::identity<void>) {
std::forward<decltype(callback)>(callback)( std::forward<decltype(callback)>(callback)(
std::forward<decltype(args)>(args)...); std::forward<decltype(args)>(args)...);
std::forward<decltype(next_callback)>(next_callback)( std::forward<decltype(next_callback)>(next_callback)();
dispatch_result_tag{});
}, },
traits::identity<>{}); traits::identity<>{});
} }
@ -230,7 +226,7 @@ constexpr auto sequenced_unpack_invoker() {
/// TODO Add inplace resolution here /// TODO Add inplace resolution here
std::forward<decltype(next_callback)>(next_callback)( std::forward<decltype(next_callback)>(next_callback)(
dispatch_result_tag{}, std::forward<decltype(types)>(types)...); std::forward<decltype(types)>(types)...);
}); });
}; };
} }
@ -298,7 +294,7 @@ struct result_proxy {
NextCallback next_callback_; NextCallback next_callback_;
/// The operator which is called when the result was provided /// The operator which is called when the result was provided
void operator()(dispatch_result_tag, Args... args) { void operator()(Args... args) {
// In order to retrieve the correct decorator we must know what the // In order to retrieve the correct decorator we must know what the
// result type is. // result type is.
auto result = traits::identity_of<decltype( auto result = traits::identity_of<decltype(
@ -315,7 +311,8 @@ struct result_proxy {
/// The operator which is called when an error occurred /// The operator which is called when an error occurred
void operator()(dispatch_error_tag tag, error_type error) { void operator()(dispatch_error_tag tag, error_type error) {
// TODO forward the error // Forward the error to the next callback
std::move(next_callback_)(tag, std::move(error));
} }
}; };
@ -380,12 +377,12 @@ auto chain_continuation(Continuation&& continuation, Callback&& callback,
auto hint = hint_of(traits::identity_of(continuation)); auto hint = hint_of(traits::identity_of(continuation));
auto next_hint = next_hint_of(traits::identity_of(partial_callable), hint); auto next_hint = next_hint_of(traits::identity_of(partial_callable), hint);
// TODO consume only the data here so the freeze isn't needed
auto ownership_ = attorney::ownership_of(continuation); auto ownership_ = attorney::ownership_of(continuation);
continuation.freeze(); continuation.freeze();
return attorney::create( return attorney::create(
[ [
// TODO consume only the data here
continuation = std::forward<Continuation>(continuation), continuation = std::forward<Continuation>(continuation),
partial_callable = std::move(partial_callable), partial_callable = std::move(partial_callable),
executor = std::forward<Executor>(executor) executor = std::forward<Executor>(executor)