368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef __LIBCPP___COROUTINE_TRIVIAL_AWAITABLES_H
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#define __LIBCPP___COROUTINE_TRIVIAL_AWAITABLES_H
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#include <__config>
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#include <__coroutine/coroutine_handle.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX20_COROUTINES)
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_LIBCPP_BEGIN_NAMESPACE_STD
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// [coroutine.trivial.awaitables]
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struct suspend_never {
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_LIBCPP_HIDE_FROM_ABI
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constexpr bool await_ready() const noexcept { return true; }
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_LIBCPP_HIDE_FROM_ABI
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constexpr void await_suspend(coroutine_handle<>) const noexcept {}
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_LIBCPP_HIDE_FROM_ABI
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constexpr void await_resume() const noexcept {}
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};
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struct suspend_always {
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_LIBCPP_HIDE_FROM_ABI
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constexpr bool await_ready() const noexcept { return false; }
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_LIBCPP_HIDE_FROM_ABI
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constexpr void await_suspend(coroutine_handle<>) const noexcept {}
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_LIBCPP_HIDE_FROM_ABI
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constexpr void await_resume() const noexcept {}
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // __LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX20_COROUTINES)
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#endif // __LIBCPP___COROUTINE_TRIVIAL_AWAITABLES_H
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