50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License Version 2.0 with LLVM Exceptions
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* https://llvm.org/LICENSE.txt
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <unifex/next_adapt_stream.hpp>
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#include <unifex/then.hpp>
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#include <unifex/bind_back.hpp>
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#include <functional>
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#include <unifex/detail/prologue.hpp>
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namespace unifex {
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namespace _tfx_stream {
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struct _fn {
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template <typename StreamSender, typename Func>
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auto operator()(StreamSender&& stream, Func&& func) const {
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return next_adapt_stream(
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(StreamSender &&) stream, [func = (Func &&) func](auto&& sender) mutable {
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return then((decltype(sender))sender, std::ref(func));
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});
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}
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template <typename Func>
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constexpr auto operator()(Func&& func) const
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noexcept(is_nothrow_callable_v<
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tag_t<bind_back>, _fn, Func>)
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-> bind_back_result_t<_fn, Func> {
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return bind_back(*this, (Func&&)func);
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}
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};
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} // namespace _tfx_stream
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inline constexpr _tfx_stream::_fn transform_stream {};
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} // namespace unifex
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#include <unifex/detail/epilogue.hpp>
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