mirror of
https://github.com/open-mmlab/mmdeploy.git
synced 2025-01-14 08:09:43 +08:00
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
|
// Copyright (c) OpenMMLab. All rights reserved.
|
||
|
// Modified from
|
||
|
// https://github.com/brycelelbach/wg21_p2300_std_execution/blob/main/include/execution.hpp
|
||
|
|
||
|
#include <utility>
|
||
|
|
||
|
#include "concepts.h"
|
||
|
#include "utility.h"
|
||
|
|
||
|
#ifndef MMDEPLOY_CSRC_EXPERIMENTAL_EXECUTION_CLOSURE_H_
|
||
|
#define MMDEPLOY_CSRC_EXPERIMENTAL_EXECUTION_CLOSURE_H_
|
||
|
|
||
|
namespace mmdeploy {
|
||
|
|
||
|
namespace __closure {
|
||
|
|
||
|
template <class D>
|
||
|
struct SenderAdaptorClosure;
|
||
|
|
||
|
} // namespace __closure
|
||
|
|
||
|
using __closure::SenderAdaptorClosure;
|
||
|
|
||
|
namespace __closure {
|
||
|
|
||
|
template <typename T0, typename T1>
|
||
|
struct _Compose : SenderAdaptorClosure<_Compose<T0, T1>> {
|
||
|
T0 t0_;
|
||
|
T1 t1_;
|
||
|
|
||
|
template <typename Sender, std::enable_if_t<_is_sender<Sender>, int> = 0>
|
||
|
std::invoke_result_t<T1, std::invoke_result_t<T0, Sender>> operator()(Sender&& sender) && {
|
||
|
return ((T1 &&) t1_)(((T0 &&) t0_)((Sender &&) sender));
|
||
|
}
|
||
|
|
||
|
template <typename Sender, std::enable_if_t<_is_sender<Sender>, int> = 0>
|
||
|
std::invoke_result_t<T1, std::invoke_result_t<T0, Sender>> operator()(Sender&& sender) const& {
|
||
|
return t1_(t0_((Sender &&) sender));
|
||
|
}
|
||
|
};
|
||
|
|
||
|
template <typename D>
|
||
|
struct SenderAdaptorClosure {};
|
||
|
|
||
|
template <typename T0, typename T1,
|
||
|
typename = std::enable_if_t<
|
||
|
std::is_base_of_v<SenderAdaptorClosure<remove_cvref_t<T0>>, remove_cvref_t<T0>> &&
|
||
|
std::is_base_of_v<SenderAdaptorClosure<remove_cvref_t<T1>>, remove_cvref_t<T1>>>>
|
||
|
_Compose<remove_cvref_t<T0>, remove_cvref_t<T1>> operator|(T0&& t0, T1&& t1) {
|
||
|
return {(T0 &&) t0, (T1 &&) t1};
|
||
|
}
|
||
|
|
||
|
template <typename Sender, typename Closure,
|
||
|
typename = std::enable_if_t<
|
||
|
_is_sender<Sender> && std::is_base_of_v<SenderAdaptorClosure<remove_cvref_t<Closure>>,
|
||
|
remove_cvref_t<Closure>>>>
|
||
|
std::invoke_result_t<Closure, Sender> operator|(Sender&& sender, Closure&& closure) {
|
||
|
return ((Closure &&) closure)((Sender &&) sender);
|
||
|
}
|
||
|
|
||
|
template <typename Func, typename... As>
|
||
|
struct _BinderBack : SenderAdaptorClosure<_BinderBack<Func, As...>> {
|
||
|
Func func_;
|
||
|
std::tuple<As...> as_;
|
||
|
|
||
|
template <typename Sender, std::enable_if_t<_is_sender<Sender>, int> = 0>
|
||
|
std::invoke_result_t<Func, Sender, As...> operator()(Sender&& sender) && {
|
||
|
return std::apply(
|
||
|
[&sender, this](As&... as) { return ((Func &&) func_)((Sender &&) sender, (As &&) as...); },
|
||
|
as_);
|
||
|
}
|
||
|
|
||
|
template <typename Sender, std::enable_if_t<_is_sender<Sender>, int> = 0>
|
||
|
std::invoke_result_t<Func, Sender, As...> operator()(Sender&& sender) const& {
|
||
|
return std::apply([&sender, this](const As&... as) { return func_((Sender &&) sender, as...); },
|
||
|
as_);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
} // namespace __closure
|
||
|
|
||
|
using __closure::_BinderBack;
|
||
|
|
||
|
} // namespace mmdeploy
|
||
|
|
||
|
#endif // MMDEPLOY_CSRC_EXPERIMENTAL_EXECUTION_CLOSURE_H_
|