ec117158a3
Now in libcxx and clang, all the coroutine components are defined in std::experimental namespace. And now the coroutine TS is merged into C++20. So in the working draft like N4892, we could find the coroutine components is defined in std namespace instead of std::experimental namespace. And the coroutine support in clang seems to be relatively stable. So I think it may be suitable to move the coroutine component into the experiment namespace now. This patch would make clang lookup coroutine_traits in std namespace first. For the compatibility consideration, clang would lookup in std::experimental namespace if it can't find definitions in std namespace. So the existing codes wouldn't be break after update compiler. And in case the compiler found std::coroutine_traits and std::experimental::coroutine_traits at the same time, it would emit an error for it. The support for looking up std::experimental::coroutine_traits would be removed in Clang16. Reviewed By: lxfind, Quuxplusone Differential Revision: https://reviews.llvm.org/D108696
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
// Test without serialization:
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// RUN: %clang_cc1 -triple x86_64-apple-darwin9 %s -std=c++20 \
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// RUN: -fsyntax-only -ast-dump | FileCheck %s
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//
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// Test with serialization:
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// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -std=c++20 -emit-pch -o %t %s
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// RUN: %clang_cc1 -x c++ -triple x86_64-apple-darwin9 -std=c++20 -include-pch %t \
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// RUN: -ast-dump-all /dev/null \
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// RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
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// RUN: | FileCheck %s
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#include "Inputs/std-coroutine.h"
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using namespace std;
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struct A {
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bool await_ready();
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void await_resume();
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template <typename F>
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void await_suspend(F);
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};
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struct coro_t {
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struct promise_type {
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coro_t get_return_object();
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suspend_never initial_suspend();
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suspend_never final_suspend() noexcept;
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void return_void();
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static void unhandled_exception();
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};
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};
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// {{0x[0-9a-fA-F]+}} <line:[[@LINE+1]]:1, col:36>
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// CHECK-LABEL: FunctionDecl {{.*}} f 'coro_t (int)'
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coro_t f(int n) {
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A a{};
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// CHECK: CoawaitExpr {{0x[0-9a-fA-F]+}} <col:3, col:12>
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// CHECK-NEXT: DeclRefExpr {{0x[0-9a-fA-F]+}} <col:12>
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// CHECK-NEXT: CXXMemberCallExpr {{0x[0-9a-fA-F]+}} <col:12>
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// CHECK-NEXT: MemberExpr {{0x[0-9a-fA-F]+}} <col:12>
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co_await a;
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}
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