Index: clang-tools-extra/test/clang-tidy/checkers/Inputs/readability-identifier-naming/system/coroutines.h =================================================================== --- clang-tools-extra/test/clang-tidy/checkers/Inputs/readability-identifier-naming/system/coroutines.h +++ clang-tools-extra/test/clang-tidy/checkers/Inputs/readability-identifier-naming/system/coroutines.h @@ -1,7 +1,6 @@ #pragma once namespace std { -namespace experimental { template struct coroutine_traits { @@ -13,7 +12,6 @@ static constexpr coroutine_handle from_address(void *addr) noexcept { return {}; }; }; -} // namespace experimental } // namespace std struct never_suspend { Index: clang/docs/LanguageExtensions.rst =================================================================== --- clang/docs/LanguageExtensions.rst +++ clang/docs/LanguageExtensions.rst @@ -2872,7 +2872,7 @@ Clang provides experimental builtins to support C++ Coroutines as defined by https://wg21.link/P0057. The following four are intended to be used by the -standard library to implement `std::experimental::coroutine_handle` type. +standard library to implement `std::coroutine_handle` type. **Syntax**: Index: clang/include/clang/Basic/DiagnosticSemaKinds.td =================================================================== --- clang/include/clang/Basic/DiagnosticSemaKinds.td +++ clang/include/clang/Basic/DiagnosticSemaKinds.td @@ -10957,19 +10957,20 @@ "|a function with a deduced return type|a varargs function" "|a consteval function}0">; def err_implied_coroutine_type_not_found : Error< - "%0 type was not found; include before defining " - "a coroutine">; + "%0 type was not found; include before defining " + "a coroutine; include if your version " + "of libcxx is less than 14.0">; def err_implicit_coroutine_std_nothrow_type_not_found : Error< "std::nothrow was not found; include before defining a coroutine which " "uses get_return_object_on_allocation_failure()">; def err_malformed_std_nothrow : Error< "std::nothrow must be a valid variable declaration">; def err_malformed_std_coroutine_handle : Error< - "std::experimental::coroutine_handle must be a class template">; + "std::coroutine_handle must be a class template">; def err_coroutine_handle_missing_member : Error< - "std::experimental::coroutine_handle missing a member named '%0'">; + "std::coroutine_handle missing a member named '%0'">; def err_malformed_std_coroutine_traits : Error< - "'std::experimental::coroutine_traits' must be a class template">; + "'std::coroutine_traits' must be a class template">; def err_implied_std_coroutine_traits_promise_type_not_found : Error< "this function cannot be a coroutine: %q0 has no member named 'promise_type'">; def err_implied_std_coroutine_traits_promise_type_not_class : Error< @@ -11011,6 +11012,10 @@ def warn_coroutine_handle_address_invalid_return_type : Warning < "return type of 'coroutine_handle<>::address should be 'void*' (have %0) in order to get capability with existing async C API.">, InGroup; +def warn_coroutine_in_legacy_experimental_space : Warning < + "coroutine_traits defined in std::experimental namespace is deprecated. " + "Consider updating libcxx and include instead of .">, + InGroup; def err_coroutine_promise_final_suspend_requires_nothrow : Error< "the expression 'co_await __promise.final_suspend()' is required to be non-throwing" >; Index: clang/include/clang/Sema/Sema.h =================================================================== --- clang/include/clang/Sema/Sema.h +++ clang/include/clang/Sema/Sema.h @@ -1128,6 +1128,10 @@ /// The C++ "std::coroutine_traits" template, which is defined in /// \ ClassTemplateDecl *StdCoroutineTraitsCache; + /// The namespace where coroutine components are defined. In standard, + /// they are defined in std namespace. And in the previous implementation, + /// they are defined in std::experimental namespace. + NamespaceDecl *CoroTraitsNamespaceCache; /// The C++ "type_info" declaration, which is defined in \. RecordDecl *CXXTypeInfoDecl; @@ -5658,6 +5662,7 @@ NamespaceDecl *getOrCreateStdNamespace(); NamespaceDecl *lookupStdExperimentalNamespace(); + NamespaceDecl *getCachedCoroNamespace() { return CoroTraitsNamespaceCache; } CXXRecordDecl *getStdBadAlloc() const; EnumDecl *getStdAlignValT() const; @@ -10214,8 +10219,11 @@ bool buildCoroutineParameterMoves(SourceLocation Loc); VarDecl *buildCoroutinePromise(SourceLocation Loc); void CheckCompletedCoroutineBody(FunctionDecl *FD, Stmt *&Body); + /// Lookup 'coroutine_traits' in std namespace and std::experimental + /// namespace. The namespace found would be recorded in Namespace. ClassTemplateDecl *lookupCoroutineTraits(SourceLocation KwLoc, - SourceLocation FuncLoc); + SourceLocation FuncLoc, + NamespaceDecl *&Namespace); /// Check that the expression co_await promise.final_suspend() shall not be /// potentially-throwing. bool checkFinalSuspendNoThrow(const Stmt *FinalSuspend); Index: clang/lib/Sema/SemaCoroutine.cpp =================================================================== --- clang/lib/Sema/SemaCoroutine.cpp +++ clang/lib/Sema/SemaCoroutine.cpp @@ -53,15 +53,10 @@ SourceLocation KwLoc) { const FunctionProtoType *FnType = FD->getType()->castAs(); const SourceLocation FuncLoc = FD->getLocation(); - // FIXME: Cache std::coroutine_traits once we've found it. - NamespaceDecl *StdExp = S.lookupStdExperimentalNamespace(); - if (!StdExp) { - S.Diag(KwLoc, diag::err_implied_coroutine_type_not_found) - << "std::experimental::coroutine_traits"; - return QualType(); - } - ClassTemplateDecl *CoroTraits = S.lookupCoroutineTraits(KwLoc, FuncLoc); + NamespaceDecl *CoroNamespace = nullptr; + ClassTemplateDecl *CoroTraits = + S.lookupCoroutineTraits(KwLoc, FuncLoc, CoroNamespace); if (!CoroTraits) { return QualType(); } @@ -122,7 +117,7 @@ QualType PromiseType = S.Context.getTypeDeclType(Promise); auto buildElaboratedType = [&]() { - auto *NNS = NestedNameSpecifier::Create(S.Context, nullptr, StdExp); + auto *NNS = NestedNameSpecifier::Create(S.Context, nullptr, CoroNamespace); NNS = NestedNameSpecifier::Create(S.Context, NNS, false, CoroTrait.getTypePtr()); return S.Context.getElaboratedType(ETK_None, NNS, PromiseType); @@ -141,20 +136,20 @@ return PromiseType; } -/// Look up the std::experimental::coroutine_handle. +/// Look up the std::coroutine_handle. static QualType lookupCoroutineHandleType(Sema &S, QualType PromiseType, SourceLocation Loc) { if (PromiseType.isNull()) return QualType(); - NamespaceDecl *StdExp = S.lookupStdExperimentalNamespace(); - assert(StdExp && "Should already be diagnosed"); + NamespaceDecl *CoroNamespace = S.getCachedCoroNamespace(); + assert(CoroNamespace && "Should already be diagnosed"); LookupResult Result(S, &S.PP.getIdentifierTable().get("coroutine_handle"), Loc, Sema::LookupOrdinaryName); - if (!S.LookupQualifiedName(Result, StdExp)) { + if (!S.LookupQualifiedName(Result, CoroNamespace)) { S.Diag(Loc, diag::err_implied_coroutine_type_not_found) - << "std::experimental::coroutine_handle"; + << "std::coroutine_handle"; return QualType(); } @@ -1000,7 +995,7 @@ LookupResult Result(S, &S.PP.getIdentifierTable().get("nothrow"), Loc, Sema::LookupOrdinaryName); if (!S.LookupQualifiedName(Result, Std)) { - // FIXME: should have been included already. + // FIXME: should have been included already. // If we require it to include then this diagnostic is no longer // needed. S.Diag(Loc, diag::err_implicit_coroutine_std_nothrow_type_not_found); @@ -1663,25 +1658,32 @@ } ClassTemplateDecl *Sema::lookupCoroutineTraits(SourceLocation KwLoc, - SourceLocation FuncLoc) { + SourceLocation FuncLoc, + NamespaceDecl *&Namespace) { if (!StdCoroutineTraitsCache) { - if (auto StdExp = lookupStdExperimentalNamespace()) { - LookupResult Result(*this, - &PP.getIdentifierTable().get("coroutine_traits"), - FuncLoc, LookupOrdinaryName); - if (!LookupQualifiedName(Result, StdExp)) { + NamespaceDecl *CoroNamespace = getStdNamespace(); + LookupResult Result(*this, &PP.getIdentifierTable().get("coroutine_traits"), + FuncLoc, LookupOrdinaryName); + if (!CoroNamespace || !LookupQualifiedName(Result, CoroNamespace)) { + /// TODO: lookup in std::expeirmental namespace for compability. + /// Remove this once users get familiar with coroutine under std + /// namespace. + CoroNamespace = lookupStdExperimentalNamespace(); + if (!CoroNamespace || !LookupQualifiedName(Result, CoroNamespace)) { Diag(KwLoc, diag::err_implied_coroutine_type_not_found) - << "std::experimental::coroutine_traits"; - return nullptr; - } - if (!(StdCoroutineTraitsCache = - Result.getAsSingle())) { - Result.suppressDiagnostics(); - NamedDecl *Found = *Result.begin(); - Diag(Found->getLocation(), diag::err_malformed_std_coroutine_traits); + << "std::coroutine_traits"; return nullptr; } + Diag(KwLoc, diag::warn_coroutine_in_legacy_experimental_space); + } + if (!(StdCoroutineTraitsCache = Result.getAsSingle())) { + Result.suppressDiagnostics(); + NamedDecl *Found = *Result.begin(); + Diag(Found->getLocation(), diag::err_malformed_std_coroutine_traits); + return nullptr; } + CoroTraitsNamespaceCache = CoroNamespace; } + Namespace = CoroTraitsNamespaceCache; return StdCoroutineTraitsCache; } Index: clang/test/AST/Inputs/std-coroutine.h =================================================================== --- clang/test/AST/Inputs/std-coroutine.h +++ clang/test/AST/Inputs/std-coroutine.h @@ -3,7 +3,6 @@ #define STD_COROUTINE_H namespace std { -namespace experimental { template struct coroutine_traits { using promise_type = typename R::promise_type; @@ -67,7 +66,6 @@ void await_resume() noexcept {} }; -} // namespace experimental } // namespace std #endif // STD_COROUTINE_H Index: clang/test/AST/coroutine-locals-cleanup.cpp =================================================================== --- clang/test/AST/coroutine-locals-cleanup.cpp +++ clang/test/AST/coroutine-locals-cleanup.cpp @@ -2,7 +2,7 @@ #include "Inputs/std-coroutine.h" -using namespace std::experimental; +using namespace std; struct Task { struct promise_type { Index: clang/test/AST/coroutine-source-location-crash.cpp =================================================================== --- clang/test/AST/coroutine-source-location-crash.cpp +++ clang/test/AST/coroutine-source-location-crash.cpp @@ -11,7 +11,7 @@ #include "Inputs/std-coroutine.h" -using namespace std::experimental; +using namespace std; struct A { bool await_ready(); Index: clang/test/Analysis/more-dtors-cfg-output.cpp =================================================================== --- clang/test/Analysis/more-dtors-cfg-output.cpp +++ clang/test/Analysis/more-dtors-cfg-output.cpp @@ -275,32 +275,32 @@ #if CXX2A // Boilerplate needed to test co_return: -namespace std::experimental { - template - struct coroutine_handle { - static coroutine_handle from_address(void *) noexcept; - }; -} +namespace std { +template +struct coroutine_handle { + static coroutine_handle from_address(void *) noexcept; +}; +} // namespace std struct TestPromise { TestPromise initial_suspend(); TestPromise final_suspend() noexcept; bool await_ready() noexcept; - void await_suspend(const std::experimental::coroutine_handle &) noexcept; + void await_suspend(const std::coroutine_handle &) noexcept; void await_resume() noexcept; Foo return_value(const Bar &); Bar get_return_object(); void unhandled_exception(); }; -namespace std::experimental { - template - struct coroutine_traits; - template <> - struct coroutine_traits { - using promise_type = TestPromise; - }; -} +namespace std { +template +struct coroutine_traits; +template <> +struct coroutine_traits { + using promise_type = TestPromise; +}; +} // namespace std Bar coreturn() { co_return get_bar(); Index: clang/test/CodeGenCXX/ubsan-coroutines.cpp =================================================================== --- clang/test/CodeGenCXX/ubsan-coroutines.cpp +++ clang/test/CodeGenCXX/ubsan-coroutines.cpp @@ -4,7 +4,7 @@ // llvm.coro.* intrinsics have not yet been ported. // RUN: %clang_cc1 -fno-experimental-new-pass-manager -emit-obj -std=c++2a -fsanitize=null %s -o %t.o -namespace std::experimental { +namespace std { template struct coroutine_traits { using promise_type = typename R::promise_type; }; @@ -20,11 +20,11 @@ coroutine_handle() = default; static coroutine_handle from_address(void *) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; @@ -41,7 +41,7 @@ struct awaitable { task await() { (void)co_await *this; } bool await_ready() { return false; } - bool await_suspend(std::experimental::coroutine_handle<> awaiter) { return false; } + bool await_suspend(std::coroutine_handle<> awaiter) { return false; } bool await_resume() { return false; } }; Index: clang/test/CodeGenCoroutines/Inputs/coroutine.h =================================================================== --- clang/test/CodeGenCoroutines/Inputs/coroutine.h +++ clang/test/CodeGenCoroutines/Inputs/coroutine.h @@ -1,6 +1,6 @@ #pragma once -namespace std { namespace experimental { inline namespace coroutines_v1 { +namespace std { template struct coroutine_traits { using promise_type = typename R::promise_type; @@ -77,4 +77,4 @@ void await_resume() noexcept {} }; -}}} +} // namespace std Index: clang/test/CodeGenCoroutines/coro-alloc.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-alloc.cpp +++ clang/test/CodeGenCoroutines/coro-alloc.cpp @@ -3,7 +3,6 @@ // RUN: | FileCheck %s namespace std { -namespace experimental { template struct coroutine_traits; // expected-note {{declared here}} @@ -21,8 +20,6 @@ coroutine_handle(coroutine_handle) noexcept {} }; -} // end namespace experimental - struct nothrow_t {}; constexpr nothrow_t nothrow = {}; @@ -37,14 +34,14 @@ struct suspend_always { bool await_ready() noexcept { return false; } - void await_suspend(std::experimental::coroutine_handle<>) noexcept {} + void await_suspend(std::coroutine_handle<>) noexcept {} void await_resume() noexcept {} }; struct global_new_delete_tag {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void get_return_object() {} suspend_always initial_suspend() { return {}; } @@ -83,8 +80,8 @@ struct promise_new_tag {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void *operator new(unsigned long); void get_return_object() {} @@ -98,7 +95,7 @@ extern "C" void f1(promise_new_tag ) { // CHECK: %[[ID:.+]] = call token @llvm.coro.id(i32 16 // CHECK: %[[SIZE:.+]] = call i64 @llvm.coro.size.i64() - // CHECK: call i8* @_ZNSt12experimental16coroutine_traitsIJv15promise_new_tagEE12promise_typenwEm(i64 %[[SIZE]]) + // CHECK: call i8* @_ZNSt16coroutine_traitsIJv15promise_new_tagEE12promise_typenwEm(i64 %[[SIZE]]) // CHECK: %[[FRAME:.+]] = call i8* @llvm.coro.begin( // CHECK: %[[MEM:.+]] = call i8* @llvm.coro.free(token %[[ID]], i8* %[[FRAME]]) @@ -108,8 +105,8 @@ struct promise_matching_placement_new_tag {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void *operator new(unsigned long, promise_matching_placement_new_tag, int, float, double); @@ -130,7 +127,7 @@ // CHECK: %[[INT:.+]] = load i32, i32* %x.addr, align 4 // CHECK: %[[FLOAT:.+]] = load float, float* %y.addr, align 4 // CHECK: %[[DOUBLE:.+]] = load double, double* %z.addr, align 8 - // CHECK: call i8* @_ZNSt12experimental16coroutine_traitsIJv34promise_matching_placement_new_tagifdEE12promise_typenwEmS1_ifd(i64 %[[SIZE]], i32 %[[INT]], float %[[FLOAT]], double %[[DOUBLE]]) + // CHECK: call i8* @_ZNSt16coroutine_traitsIJv34promise_matching_placement_new_tagifdEE12promise_typenwEmS0_ifd(i64 %[[SIZE]], i32 %[[INT]], float %[[FLOAT]], double %[[DOUBLE]]) co_return; } @@ -140,8 +137,8 @@ struct promise_matching_global_placement_new_tag {}; struct dummy {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void get_return_object() {} suspend_always initial_suspend() { return {}; } @@ -162,8 +159,8 @@ struct promise_delete_tag {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void operator delete(void*); void get_return_object() {} @@ -181,14 +178,14 @@ // CHECK: %[[FRAME:.+]] = call i8* @llvm.coro.begin( // CHECK: %[[MEM:.+]] = call i8* @llvm.coro.free(token %[[ID]], i8* %[[FRAME]]) - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJv18promise_delete_tagEE12promise_typedlEPv(i8* %[[MEM]]) + // CHECK: call void @_ZNSt16coroutine_traitsIJv18promise_delete_tagEE12promise_typedlEPv(i8* %[[MEM]]) co_return; } struct promise_sized_delete_tag {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void operator delete(void*, unsigned long); void get_return_object() {} @@ -207,14 +204,14 @@ // CHECK: %[[FRAME:.+]] = call i8* @llvm.coro.begin( // CHECK: %[[MEM:.+]] = call i8* @llvm.coro.free(token %[[ID]], i8* %[[FRAME]]) // CHECK: %[[SIZE2:.+]] = call i64 @llvm.coro.size.i64() - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJv24promise_sized_delete_tagEE12promise_typedlEPvm(i8* %[[MEM]], i64 %[[SIZE2]]) + // CHECK: call void @_ZNSt16coroutine_traitsIJv24promise_sized_delete_tagEE12promise_typedlEPvm(i8* %[[MEM]], i64 %[[SIZE2]]) co_return; } struct promise_on_alloc_failure_tag {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { int get_return_object() { return 0; } suspend_always initial_suspend() { return {}; } @@ -235,12 +232,12 @@ // CHECK: br i1 %[[OK]], label %[[OKBB:.+]], label %[[ERRBB:.+]] // CHECK: [[ERRBB]]: - // CHECK: %[[FailRet:.+]] = call i32 @_ZNSt12experimental16coroutine_traitsIJi28promise_on_alloc_failure_tagEE12promise_type39get_return_object_on_allocation_failureEv( + // CHECK: %[[FailRet:.+]] = call i32 @_ZNSt16coroutine_traitsIJi28promise_on_alloc_failure_tagEE12promise_type39get_return_object_on_allocation_failureEv( // CHECK: store i32 %[[FailRet]], i32* %[[RetVal]] // CHECK: br label %[[RetBB:.+]] // CHECK: [[OKBB]]: - // CHECK: %[[OkRet:.+]] = call i32 @_ZNSt12experimental16coroutine_traitsIJi28promise_on_alloc_failure_tagEE12promise_type17get_return_objectEv( + // CHECK: %[[OkRet:.+]] = call i32 @_ZNSt16coroutine_traitsIJi28promise_on_alloc_failure_tagEE12promise_type17get_return_objectEv( // CHECK: store i32 %[[OkRet]], i32* %[[Gro]] // CHECK: %[[Tmp1:.*]] = load i32, i32* %[[Gro]] Index: clang/test/CodeGenCoroutines/coro-always-inline.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-always-inline.cpp +++ clang/test/CodeGenCoroutines/coro-always-inline.cpp @@ -9,7 +9,6 @@ // RUN: -fno-inline -O0 %s -o - | FileCheck %s namespace std { -namespace experimental { struct handle {}; @@ -35,18 +34,17 @@ void unhandled_exception() {} }; }; -} // namespace experimental } // namespace std // CHECK-LABEL: @_Z3foov // CHECK-LABEL: entry: -// CHECK: [[CAST0:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* +// CHECK: [[CAST0:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[CAST0]]) -// CHECK: [[CAST1:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* +// CHECK: [[CAST1:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8* // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[CAST1]]) -// CHECK: [[CAST2:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* +// CHECK: [[CAST2:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[CAST2]]) -// CHECK: [[CAST3:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* +// CHECK: [[CAST3:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8* // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[CAST3]]) void foo() { co_return; } Index: clang/test/CodeGenCoroutines/coro-await-domination.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-await-domination.cpp +++ clang/test/CodeGenCoroutines/coro-await-domination.cpp @@ -1,7 +1,7 @@ // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm %s -o - | FileCheck %s #include "Inputs/coroutine.h" -using namespace std::experimental; +using namespace std; struct coro { struct promise_type { Index: clang/test/CodeGenCoroutines/coro-await-resume-eh.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-await-resume-eh.cpp +++ clang/test/CodeGenCoroutines/coro-await-resume-eh.cpp @@ -10,11 +10,9 @@ #include "Inputs/coroutine.h" -namespace coro = std::experimental::coroutines_v1; - struct throwing_awaitable { bool await_ready() { return true; } - void await_suspend(coro::coroutine_handle<>) {} + void await_suspend(std::coroutine_handle<>) {} void await_resume() { throw 42; } }; @@ -22,7 +20,7 @@ struct promise_type { auto get_return_object() { return throwing_task{}; } auto initial_suspend() { return throwing_awaitable{}; } - auto final_suspend() noexcept { return coro::suspend_never{}; } + auto final_suspend() noexcept { return std::suspend_never{}; } void return_void() {} void unhandled_exception() {} }; @@ -88,7 +86,7 @@ struct noexcept_awaitable { bool await_ready() { return true; } - void await_suspend(coro::coroutine_handle<>) {} + void await_suspend(std::coroutine_handle<>) {} void await_resume() noexcept {} }; @@ -96,7 +94,7 @@ struct promise_type { auto get_return_object() { return noexcept_task{}; } auto initial_suspend() { return noexcept_awaitable{}; } - auto final_suspend() noexcept { return coro::suspend_never{}; } + auto final_suspend() noexcept { return std::suspend_never{}; } void return_void() {} void unhandled_exception() {} }; Index: clang/test/CodeGenCoroutines/coro-await.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-await.cpp +++ clang/test/CodeGenCoroutines/coro-await.cpp @@ -2,7 +2,6 @@ // RUN: -emit-llvm %s -o - -disable-llvm-passes -Wno-coroutine -Wno-unused | FileCheck %s namespace std { -namespace experimental { template struct coroutine_traits; @@ -20,29 +19,28 @@ static coroutine_handle from_address(void *) noexcept; }; -} } struct init_susp { bool await_ready(); - void await_suspend(std::experimental::coroutine_handle<>); + void await_suspend(std::coroutine_handle<>); void await_resume(); }; struct final_susp { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; struct suspend_always { int stuff; bool await_ready(); - void await_suspend(std::experimental::coroutine_handle<>); + void await_suspend(std::coroutine_handle<>); void await_resume(); }; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void get_return_object(); init_susp initial_suspend(); @@ -57,7 +55,7 @@ // See if initial_suspend was issued: // ---------------------------------- - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_type15initial_suspendEv( + // CHECK: call void @_ZNSt16coroutine_traitsIJvEE12promise_type15initial_suspendEv( // CHECK-NEXT: call zeroext i1 @_ZN9init_susp11await_readyEv(%struct.init_susp* // CHECK: %[[INITSP_ID:.+]] = call token @llvm.coro.save( // CHECK: call i8 @llvm.coro.suspend(token %[[INITSP_ID]], i1 false) @@ -75,10 +73,10 @@ // --------------------------- // Build the coroutine handle and pass it to await_suspend // --------------------------- - // CHECK: call i8* @_ZNSt12experimental16coroutine_handleINS_16coroutine_traitsIJvEE12promise_typeEE12from_addressEPv(i8* %[[FRAME]]) + // CHECK: call i8* @_ZNSt16coroutine_handleINSt16coroutine_traitsIJvEE12promise_typeEE12from_addressEPv(i8* %[[FRAME]]) // ... many lines of code to coerce coroutine_handle into an i8* scalar // CHECK: %[[CH:.+]] = load i8*, i8** %{{.+}} - // CHECK: call void @_ZN14suspend_always13await_suspendENSt12experimental16coroutine_handleIvEE(%struct.suspend_always* {{[^,]*}} %[[AWAITABLE]], i8* %[[CH]]) + // CHECK: call void @_ZN14suspend_always13await_suspendESt16coroutine_handleIvE(%struct.suspend_always* {{[^,]*}} %[[AWAITABLE]], i8* %[[CH]]) // ------------------------- // Generate a suspend point: // ------------------------- @@ -99,7 +97,7 @@ // See if final_suspend was issued: // ---------------------------------- - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_type13final_suspendEv( + // CHECK: call void @_ZNSt16coroutine_traitsIJvEE12promise_type13final_suspendEv( // CHECK-NEXT: call zeroext i1 @_ZN10final_susp11await_readyEv(%struct.final_susp* // CHECK: %[[FINALSP_ID:.+]] = call token @llvm.coro.save( // CHECK: call i8 @llvm.coro.suspend(token %[[FINALSP_ID]], i1 true) @@ -109,13 +107,12 @@ float stuff; ~suspend_maybe(); bool await_ready(); - bool await_suspend(std::experimental::coroutine_handle<>); + bool await_suspend(std::coroutine_handle<>); void await_resume(); }; - -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void get_return_object(); init_susp initial_suspend(); @@ -127,10 +124,10 @@ // CHECK-LABEL: f1( extern "C" void f1(int) { - // CHECK: %[[PROMISE:.+]] = alloca %"struct.std::experimental::coroutine_traits::promise_type" + // CHECK: %[[PROMISE:.+]] = alloca %"struct.std::coroutine_traits::promise_type" // CHECK: %[[FRAME:.+]] = call i8* @llvm.coro.begin( co_yield 42; - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJviEE12promise_type11yield_valueEi(%struct.suspend_maybe* sret(%struct.suspend_maybe) align 4 %[[AWAITER:.+]], %"struct.std::experimental::coroutine_traits::promise_type"* {{[^,]*}} %[[PROMISE]], i32 42) + // CHECK: call void @_ZNSt16coroutine_traitsIJviEE12promise_type11yield_valueEi(%struct.suspend_maybe* sret(%struct.suspend_maybe) align 4 %[[AWAITER:.+]], %"struct.std::coroutine_traits::promise_type"* {{[^,]*}} %[[PROMISE]], i32 42) // See if we need to suspend: // -------------------------- @@ -144,10 +141,10 @@ // --------------------------- // Build the coroutine handle and pass it to await_suspend // --------------------------- - // CHECK: call i8* @_ZNSt12experimental16coroutine_handleINS_16coroutine_traitsIJviEE12promise_typeEE12from_addressEPv(i8* %[[FRAME]]) + // CHECK: call i8* @_ZNSt16coroutine_handleINSt16coroutine_traitsIJviEE12promise_typeEE12from_addressEPv(i8* %[[FRAME]]) // ... many lines of code to coerce coroutine_handle into an i8* scalar // CHECK: %[[CH:.+]] = load i8*, i8** %{{.+}} - // CHECK: %[[YES:.+]] = call zeroext i1 @_ZN13suspend_maybe13await_suspendENSt12experimental16coroutine_handleIvEE(%struct.suspend_maybe* {{[^,]*}} %[[AWAITABLE]], i8* %[[CH]]) + // CHECK: %[[YES:.+]] = call zeroext i1 @_ZN13suspend_maybe13await_suspendESt16coroutine_handleIvE(%struct.suspend_maybe* {{[^,]*}} %[[AWAITABLE]], i8* %[[CH]]) // ------------------------------------------- // See if await_suspend decided not to suspend // ------------------------------------------- @@ -264,7 +261,7 @@ // See if initial_suspend was issued: // ---------------------------------- - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_type15initial_suspendEv( + // CHECK: call void @_ZNSt16coroutine_traitsIJvEE12promise_type15initial_suspendEv( // CHECK-NEXT: call zeroext i1 @_ZN9init_susp11await_readyEv(%struct.init_susp* for (;;) @@ -272,7 +269,7 @@ // Verify that final_suspend was NOT issued: // ---------------------------------- - // CHECK-NOT: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_type13final_suspendEv( + // CHECK-NOT: call void @_ZNSt16coroutine_traitsIJvEE12promise_type13final_suspendEv( // CHECK-NOT: call zeroext i1 @_ZN10final_susp11await_readyEv(%struct.final_susp* } @@ -287,13 +284,12 @@ struct AwaitResumeReturnsLValue { bool await_ready(); - void await_suspend(std::experimental::coroutine_handle<>); + void await_suspend(std::coroutine_handle<>); RefTag& await_resume(); }; - -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void get_return_object(); init_susp initial_suspend(); @@ -338,7 +334,7 @@ struct TailCallAwait { bool await_ready(); - std::experimental::coroutine_handle<> await_suspend(std::experimental::coroutine_handle<>); + std::coroutine_handle<> await_suspend(std::coroutine_handle<>); void await_resume(); }; @@ -346,9 +342,9 @@ extern "C" void TestTailcall() { co_await TailCallAwait{}; - // CHECK: %[[RESULT:.+]] = call i8* @_ZN13TailCallAwait13await_suspendENSt12experimental16coroutine_handleIvEE(%struct.TailCallAwait* - // CHECK: %[[COERCE:.+]] = getelementptr inbounds %"struct.std::experimental::coroutine_handle", %"struct.std::experimental::coroutine_handle"* %[[TMP:.+]], i32 0, i32 0 + // CHECK: %[[RESULT:.+]] = call i8* @_ZN13TailCallAwait13await_suspendESt16coroutine_handleIvE(%struct.TailCallAwait* + // CHECK: %[[COERCE:.+]] = getelementptr inbounds %"struct.std::coroutine_handle", %"struct.std::coroutine_handle"* %[[TMP:.+]], i32 0, i32 0 // CHECK: store i8* %[[RESULT]], i8** %[[COERCE]] - // CHECK: %[[ADDR:.+]] = call i8* @_ZNSt12experimental16coroutine_handleIvE7addressEv(%"struct.std::experimental::coroutine_handle"* {{[^,]*}} %[[TMP]]) + // CHECK: %[[ADDR:.+]] = call i8* @_ZNSt16coroutine_handleIvE7addressEv(%"struct.std::coroutine_handle"* {{[^,]*}} %[[TMP]]) // CHECK: call void @llvm.coro.resume(i8* %[[ADDR]]) } Index: clang/test/CodeGenCoroutines/coro-cleanup.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-cleanup.cpp +++ clang/test/CodeGenCoroutines/coro-cleanup.cpp @@ -1,7 +1,7 @@ // Verify that coroutine promise and allocated memory are freed up on exception. // RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -triple=x86_64-unknown-linux-gnu -emit-llvm -o - %s -fexceptions -fcxx-exceptions -disable-llvm-passes | FileCheck %s -namespace std::experimental { +namespace std { template struct coroutine_traits; template struct coroutine_handle { @@ -14,15 +14,15 @@ template coroutine_handle(coroutine_handle) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; -template <> struct std::experimental::coroutine_traits { +template <> struct std::coroutine_traits { struct promise_type { void get_return_object() noexcept; suspend_always initial_suspend() noexcept; @@ -43,7 +43,7 @@ // If promise constructor throws, check that we free the memory. - // CHECK: invoke void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_typeC1Ev( + // CHECK: invoke void @_ZNSt16coroutine_traitsIJvEE12promise_typeC1Ev( // CHECK-NEXT: to label %{{.+}} unwind label %[[DeallocPad:.+]] // CHECK: [[DeallocPad]]: @@ -67,7 +67,7 @@ // CHECK: [[Catch]]: // CHECK: call i8* @__cxa_begin_catch( - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_type19unhandled_exceptionEv( + // CHECK: call void @_ZNSt16coroutine_traitsIJvEE12promise_type19unhandled_exceptionEv( // CHECK: invoke void @__cxa_end_catch() // CHECK-NEXT: to label %[[Cont:.+]] unwind @@ -77,7 +77,7 @@ // CHECK-NEXT: br label %[[Cleanup:.+]] // CHECK: [[Cleanup]]: - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_typeD1Ev( + // CHECK: call void @_ZNSt16coroutine_traitsIJvEE12promise_typeD1Ev( // CHECK: %[[Mem0:.+]] = call i8* @llvm.coro.free( // CHECK: call void @_ZdlPv(i8* %[[Mem0]] @@ -93,5 +93,5 @@ for (;;) co_await suspend_always{}; // Since this is the endless loop there should be no fallthrough handler (call to 'return_void'). - // CHECK-NOT: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_type11return_voidEv + // CHECK-NOT: call void @_ZNSt16coroutine_traitsIJvEE12promise_type11return_voidEv } Index: clang/test/CodeGenCoroutines/coro-dest-slot.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-dest-slot.cpp +++ clang/test/CodeGenCoroutines/coro-dest-slot.cpp @@ -2,7 +2,7 @@ #include "Inputs/coroutine.h" -using namespace std::experimental; +using namespace std; struct coro { struct promise_type { @@ -30,7 +30,7 @@ // CHECK-NEXT: i8 1, label %[[FINAL_CLEANUP:.+]] // CHECK-NEXT: ] -// CHECK: call void @_ZNSt12experimental13coroutines_v113suspend_never12await_resumeEv( +// CHECK: call void @_ZNSt13suspend_never12await_resumeEv( // CHECK: %[[CLEANUP_DEST1:.+]] = phi i32 [ 0, %[[FINAL_READY]] ], [ 2, %[[FINAL_CLEANUP]] ] // CHECK: %[[CLEANUP_DEST2:.+]] = phi i32 [ %[[CLEANUP_DEST0]], %{{.+}} ], [ %[[CLEANUP_DEST1]], %{{.+}} ], [ 0, %{{.+}} ] // CHECK: call i8* @llvm.coro.free( Index: clang/test/CodeGenCoroutines/coro-dwarf.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-dwarf.cpp +++ clang/test/CodeGenCoroutines/coro-dwarf.cpp @@ -3,7 +3,7 @@ // RUN: -emit-llvm -o - %s | \ // RUN: FileCheck %s --implicit-check-not=DILocalVariable -namespace std::experimental { +namespace std { template struct coroutine_traits; template struct coroutine_handle { @@ -16,15 +16,15 @@ template coroutine_handle(coroutine_handle) noexcept; }; -} // namespace std::experimental +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; -template struct std::experimental::coroutine_traits { +template struct std::coroutine_traits { struct promise_type { void get_return_object() noexcept; suspend_always initial_suspend() noexcept; Index: clang/test/CodeGenCoroutines/coro-eh-cleanup.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-eh-cleanup.cpp +++ clang/test/CodeGenCoroutines/coro-eh-cleanup.cpp @@ -1,7 +1,7 @@ // RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -triple=x86_64-pc-windows-msvc18.0.0 -emit-llvm %s -o - -fexceptions -fcxx-exceptions -disable-llvm-passes | FileCheck %s // RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -triple=x86_64-unknown-linux-gnu -emit-llvm -o - %s -fexceptions -fcxx-exceptions -disable-llvm-passes | FileCheck --check-prefix=CHECK-LPAD %s -namespace std::experimental { +namespace std { template struct coroutine_traits { using promise_type = typename R::promise_type; }; @@ -18,11 +18,11 @@ coroutine_handle() = default; static coroutine_handle from_address(void *) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; Index: clang/test/CodeGenCoroutines/coro-gro-nrvo.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-gro-nrvo.cpp +++ clang/test/CodeGenCoroutines/coro-gro-nrvo.cpp @@ -2,7 +2,7 @@ #include "Inputs/coroutine.h" -using namespace std::experimental; +using namespace std; namespace std { Index: clang/test/CodeGenCoroutines/coro-gro.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-gro.cpp +++ clang/test/CodeGenCoroutines/coro-gro.cpp @@ -2,7 +2,7 @@ // Verify that coroutine promise and allocated memory are freed up on exception. // RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -triple=x86_64-unknown-linux-gnu -emit-llvm -o - %s -disable-llvm-passes | FileCheck %s -namespace std::experimental { +namespace std { template struct coroutine_traits; template struct coroutine_handle { @@ -15,11 +15,11 @@ template coroutine_handle(coroutine_handle) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; @@ -28,7 +28,7 @@ operator int() noexcept; }; -template <> struct std::experimental::coroutine_traits { +template <> struct std::coroutine_traits { struct promise_type { GroType get_return_object() noexcept; suspend_always initial_suspend() noexcept; @@ -51,8 +51,8 @@ // CHECK: %[[Size:.+]] = call i64 @llvm.coro.size.i64() // CHECK: call noalias nonnull i8* @_Znwm(i64 %[[Size]]) // CHECK: store i1 false, i1* %[[GroActive]] - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJiEE12promise_typeC1Ev( - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJiEE12promise_type17get_return_objectEv( + // CHECK: call void @_ZNSt16coroutine_traitsIJiEE12promise_typeC1Ev( + // CHECK: call void @_ZNSt16coroutine_traitsIJiEE12promise_type17get_return_objectEv( // CHECK: store i1 true, i1* %[[GroActive]] Cleanup cleanup; @@ -60,12 +60,12 @@ co_return; // CHECK: call void @_Z11doSomethingv( - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJiEE12promise_type11return_voidEv( + // CHECK: call void @_ZNSt16coroutine_traitsIJiEE12promise_type11return_voidEv( // CHECK: call void @_ZN7CleanupD1Ev( // Destroy promise and free the memory. - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJiEE12promise_typeD1Ev( + // CHECK: call void @_ZNSt16coroutine_traitsIJiEE12promise_typeD1Ev( // CHECK: %[[Mem:.+]] = call i8* @llvm.coro.free( // CHECK: call void @_ZdlPv(i8* %[[Mem]]) Index: clang/test/CodeGenCoroutines/coro-lambda.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-lambda.cpp +++ clang/test/CodeGenCoroutines/coro-lambda.cpp @@ -1,7 +1,7 @@ // Verify that we synthesized the coroutine for a lambda inside of a function template. // RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -triple=x86_64-unknown-linux-gnu -emit-llvm -o - %s -fexceptions -fcxx-exceptions -disable-llvm-passes | FileCheck %s -namespace std::experimental { +namespace std { template struct coroutine_traits { using promise_type = typename R::promise_type; }; @@ -17,11 +17,11 @@ coroutine_handle() = default; static coroutine_handle from_address(void *) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; Index: clang/test/CodeGenCoroutines/coro-newpm-pipeline.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-newpm-pipeline.cpp +++ clang/test/CodeGenCoroutines/coro-newpm-pipeline.cpp @@ -16,7 +16,6 @@ // CHECK-ALL: Running pass:{{.*}}CoroCleanupPass namespace std { -namespace experimental { struct handle {}; @@ -39,7 +38,6 @@ void unhandled_exception() {} }; }; -} // namespace experimental } // namespace std void foo() { co_return; } Index: clang/test/CodeGenCoroutines/coro-params.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-params.cpp +++ clang/test/CodeGenCoroutines/coro-params.cpp @@ -4,7 +4,7 @@ // Verifies that parameter copies are used to construct the promise type, if that type has a matching constructor // RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -triple=x86_64-unknown-linux-gnu -emit-llvm -o - %s -disable-llvm-passes -fexceptions | FileCheck %s -namespace std::experimental { +namespace std { template struct coroutine_traits; template struct coroutine_handle { @@ -17,15 +17,15 @@ template coroutine_handle(coroutine_handle) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; -template struct std::experimental::coroutine_traits { +template struct std::coroutine_traits { struct promise_type { void get_return_object() noexcept; suspend_always initial_suspend() noexcept; @@ -73,9 +73,9 @@ // CHECK-NEXT: bitcast %struct.MoveAndCopy* %[[McCopy]] to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8( // CHECK-NEXT: call void @_ZN11MoveAndCopyC1EOS_(%struct.MoveAndCopy* {{[^,]*}} %[[McCopy]], %struct.MoveAndCopy* nonnull align 4 dereferenceable(4) %[[McParam]]) # - // CHECK-NEXT: bitcast %"struct.std::experimental::coroutine_traits::promise_type"* %__promise to i8* + // CHECK-NEXT: bitcast %"struct.std::coroutine_traits::promise_type"* %__promise to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8( - // CHECK-NEXT: invoke void @_ZNSt12experimental16coroutine_traitsIJvi8MoveOnly11MoveAndCopyEE12promise_typeC1Ev( + // CHECK-NEXT: invoke void @_ZNSt16coroutine_traitsIJvi8MoveOnly11MoveAndCopyEE12promise_typeC1Ev( // CHECK: call void @_ZN14suspend_always12await_resumeEv( // CHECK: %[[IntParam:.+]] = load i32, i32* %{{.*}} @@ -89,12 +89,12 @@ co_return; // Skip to final suspend: - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvi8MoveOnly11MoveAndCopyEE12promise_type13final_suspendEv( + // CHECK: call void @_ZNSt16coroutine_traitsIJvi8MoveOnly11MoveAndCopyEE12promise_type13final_suspendEv( // CHECK: call void @_ZN14suspend_always12await_resumeEv( // Destroy promise, then parameter copies: - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvi8MoveOnly11MoveAndCopyEE12promise_typeD1Ev(%"struct.std::experimental::coroutine_traits::promise_type"* {{[^,]*}} %__promise) - // CHECK-NEXT: bitcast %"struct.std::experimental::coroutine_traits::promise_type"* %__promise to i8* + // CHECK: call void @_ZNSt16coroutine_traitsIJvi8MoveOnly11MoveAndCopyEE12promise_typeD1Ev(%"struct.std::coroutine_traits::promise_type"* {{[^,]*}} %__promise) + // CHECK-NEXT: bitcast %"struct.std::coroutine_traits::promise_type"* %__promise to i8* // CHECK-NEXT: call void @llvm.lifetime.end.p0i8( // CHECK-NEXT: call void @_ZN11MoveAndCopyD1Ev(%struct.MoveAndCopy* {{[^,]*}} %[[McCopy]]) // CHECK-NEXT: bitcast %struct.MoveAndCopy* %[[McCopy]] to i8* @@ -124,9 +124,9 @@ // CHECK-NEXT: bitcast %struct.B* %[[y_copy]] to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8( // CHECK-NEXT: call void @_ZN1BC1EOS_(%struct.B* {{[^,]*}} %[[y_copy]], %struct.B* nonnull align 4 dereferenceable(512) %y) - // CHECK-NEXT: bitcast %"struct.std::experimental::coroutine_traits::promise_type"* %__promise to i8* + // CHECK-NEXT: bitcast %"struct.std::coroutine_traits::promise_type"* %__promise to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8( - // CHECK-NEXT: invoke void @_ZNSt12experimental16coroutine_traitsIJv1A1BS2_EE12promise_typeC1Ev( + // CHECK-NEXT: invoke void @_ZNSt16coroutine_traitsIJv1A1BS1_EE12promise_typeC1Ev( co_return; } @@ -155,8 +155,8 @@ struct promise_matching_constructor {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { promise_type(promise_matching_constructor, int, float, double) {} promise_type() = delete; @@ -173,7 +173,7 @@ // CHECK: %[[INT:.+]] = load i32, i32* %5, align 4 // CHECK: %[[FLOAT:.+]] = load float, float* %6, align 4 // CHECK: %[[DOUBLE:.+]] = load double, double* %7, align 8 - // CHECK: invoke void @_ZNSt12experimental16coroutine_traitsIJv28promise_matching_constructorifdEE12promise_typeC1ES1_ifd(%"struct.std::experimental::coroutine_traits::promise_type"* {{[^,]*}} %__promise, i32 %[[INT]], float %[[FLOAT]], double %[[DOUBLE]]) + // CHECK: invoke void @_ZNSt16coroutine_traitsIJv28promise_matching_constructorifdEE12promise_typeC1ES0_ifd(%"struct.std::coroutine_traits::promise_type"* {{[^,]*}} %__promise, i32 %[[INT]], float %[[FLOAT]], double %[[DOUBLE]]) co_return; } @@ -181,7 +181,7 @@ struct method {}; -template struct std::experimental::coroutine_traits { +template struct std::coroutine_traits { struct promise_type { promise_type(some_class&, float); method get_return_object(); @@ -198,6 +198,6 @@ // CHECK-LABEL: define{{.*}} void @_ZN10some_class39good_coroutine_calls_custom_constructorEf(%struct.some_class* method some_class::good_coroutine_calls_custom_constructor(float) { - // CHECK: invoke void @_ZNSt12experimental16coroutine_traitsIJ6methodR10some_classfEE12promise_typeC1ES3_f(%"struct.std::experimental::coroutine_traits::promise_type"* {{[^,]*}} %__promise, %struct.some_class* nonnull align 1 dereferenceable(1) %{{.+}}, float + // CHECK: invoke void @_ZNSt16coroutine_traitsIJ6methodR10some_classfEE12promise_typeC1ES2_f(%"struct.std::coroutine_traits::promise_type"* {{[^,]*}} %__promise, %struct.some_class* nonnull align 1 dereferenceable(1) %{{.+}}, float co_return; } Index: clang/test/CodeGenCoroutines/coro-promise-dtor.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-promise-dtor.cpp +++ clang/test/CodeGenCoroutines/coro-promise-dtor.cpp @@ -3,15 +3,13 @@ #include "Inputs/coroutine.h" -namespace coro = std::experimental::coroutines_v1; - struct coro_t { void* p; ~coro_t(); struct promise_type { coro_t get_return_object(); - coro::suspend_never initial_suspend(); - coro::suspend_never final_suspend() noexcept; + std::suspend_never initial_suspend(); + std::suspend_never final_suspend() noexcept; void return_void(); promise_type(); ~promise_type(); Index: clang/test/CodeGenCoroutines/coro-ret-void.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-ret-void.cpp +++ clang/test/CodeGenCoroutines/coro-ret-void.cpp @@ -2,23 +2,21 @@ #include "Inputs/coroutine.h" -namespace coro = std::experimental::coroutines_v1; - struct coro1 { struct promise_type { coro1 get_return_object(); - coro::suspend_never initial_suspend(); - coro::suspend_never final_suspend() noexcept; + std::suspend_never initial_suspend(); + std::suspend_never final_suspend() noexcept; void return_void(); }; }; coro1 f() { - co_await coro::suspend_never{}; + co_await std::suspend_never{}; } // CHECK-LABEL: define{{.*}} void @_Z1fv( -// CHECK: call void @_ZNSt12experimental13coroutines_v113suspend_never12await_resumeEv(%"struct.std::experimental::coroutines_v1::suspend_never"* +// CHECK: call void @_ZNSt13suspend_never12await_resumeEv(%"struct.std::suspend_never"* // CHECK: call void @_ZN5coro112promise_type11return_voidEv(%"struct.coro1::promise_type"* {{[^,]*}} %__promise) struct A { @@ -38,8 +36,8 @@ struct coro2 { struct promise_type { coro2 get_return_object(); - coro::suspend_never initial_suspend(); - coro::suspend_never final_suspend() noexcept; + std::suspend_never initial_suspend(); + std::suspend_never final_suspend() noexcept; void return_value(int); }; }; @@ -49,5 +47,5 @@ } // CHECK-LABEL: define{{.*}} void @_Z1gv( -// CHECK: call void @_ZNSt12experimental13coroutines_v113suspend_never12await_resumeEv(%"struct.std::experimental::coroutines_v1::suspend_never"* +// CHECK: call void @_ZNSt13suspend_never12await_resumeEv(%"struct.std::suspend_never"* // CHECK: call void @_ZN5coro212promise_type12return_valueEi(%"struct.coro2::promise_type"* {{[^,]*}} %__promise, i32 42) Index: clang/test/CodeGenCoroutines/coro-return-voidtype-initlist.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-return-voidtype-initlist.cpp +++ clang/test/CodeGenCoroutines/coro-return-voidtype-initlist.cpp @@ -5,7 +5,6 @@ struct b { b(int, a); }; template struct c {}; -namespace experimental { template struct coroutine_traits : d {}; template @@ -21,7 +20,6 @@ void await_suspend(coroutine_handle<>); void await_resume(); }; -} // namespace experimental } // namespace std template auto ah(ag) { return ag().ah(0); } @@ -31,10 +29,10 @@ struct h { int await_ready() noexcept; template - void await_suspend(std::experimental::coroutine_handle) noexcept; + void await_suspend(std::coroutine_handle) noexcept; void await_resume() noexcept; }; - std::experimental::e initial_suspend(); + std::e initial_suspend(); h final_suspend() noexcept; template auto await_transform(ag) { return ah(ag()); } @@ -45,20 +43,20 @@ void unhandled_exception(); }; struct k { - k(std::experimental::coroutine_handle<>); + k(std::coroutine_handle<>); int await_ready(); }; template struct f { using promise_type = j; - std::experimental::coroutine_handle<> ar; + std::coroutine_handle<> ar; struct l : k { using at = k; - l(std::experimental::coroutine_handle<> m) : at(m) {} - void await_suspend(std::experimental::coroutine_handle<>); + l(std::coroutine_handle<> m) : at(m) {} + void await_suspend(std::coroutine_handle<>); }; struct n : l { - n(std::experimental::coroutine_handle<> m) : l(m) {} + n(std::coroutine_handle<> m) : l(m) {} am await_resume(); }; auto ah(int) { return n(ar); } Index: clang/test/CodeGenCoroutines/coro-return.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-return.cpp +++ clang/test/CodeGenCoroutines/coro-return.cpp @@ -1,6 +1,6 @@ // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++1z -emit-llvm %s -o - -disable-llvm-passes | FileCheck %s -namespace std::experimental { +namespace std { template struct coroutine_traits; template struct coroutine_handle { @@ -13,15 +13,15 @@ template coroutine_handle(coroutine_handle) noexcept {} }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; -template <> struct std::experimental::coroutine_traits { +template <> struct std::coroutine_traits { struct promise_type { void get_return_object(); suspend_always initial_suspend(); @@ -32,15 +32,15 @@ // CHECK-LABEL: f0( extern "C" void f0() { - // CHECK: %__promise = alloca %"struct.std::experimental::coroutine_traits::promise_type" + // CHECK: %__promise = alloca %"struct.std::coroutine_traits::promise_type" // CHECK: %call = call noalias nonnull i8* @_Znwm( - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJvEE12promise_type11return_voidEv(%"struct.std::experimental::coroutine_traits::promise_type"* {{[^,]*}} %__promise) + // CHECK: call void @_ZNSt16coroutine_traitsIJvEE12promise_type11return_voidEv(%"struct.std::coroutine_traits::promise_type"* {{[^,]*}} %__promise) // CHECK: call void @_ZdlPv co_return; } -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { int get_return_object(); suspend_always initial_suspend(); @@ -51,9 +51,9 @@ // CHECK-LABEL: f1( extern "C" int f1() { - // CHECK: %__promise = alloca %"struct.std::experimental::coroutine_traits::promise_type" + // CHECK: %__promise = alloca %"struct.std::coroutine_traits::promise_type" // CHECK: %call = call noalias nonnull i8* @_Znwm( - // CHECK: call void @_ZNSt12experimental16coroutine_traitsIJiEE12promise_type12return_valueEi(%"struct.std::experimental::coroutine_traits::promise_type"* {{[^,]*}} %__promise, i32 42) + // CHECK: call void @_ZNSt16coroutine_traitsIJiEE12promise_type12return_valueEi(%"struct.std::coroutine_traits::promise_type"* {{[^,]*}} %__promise, i32 42) // CHECK: call void @_ZdlPv co_return 42; } Index: clang/test/CodeGenCoroutines/coro-symmetric-transfer-01.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-symmetric-transfer-01.cpp +++ clang/test/CodeGenCoroutines/coro-symmetric-transfer-01.cpp @@ -3,19 +3,17 @@ #include "Inputs/coroutine.h" -namespace coro = std::experimental::coroutines_v1; - struct detached_task { struct promise_type { detached_task get_return_object() noexcept { - return detached_task{coro::coroutine_handle::from_promise(*this)}; + return detached_task{std::coroutine_handle::from_promise(*this)}; } void return_void() noexcept {} struct final_awaiter { bool await_ready() noexcept { return false; } - coro::coroutine_handle<> await_suspend(coro::coroutine_handle h) noexcept { + std::coroutine_handle<> await_suspend(std::coroutine_handle h) noexcept { h.destroy(); return {}; } @@ -26,7 +24,7 @@ final_awaiter final_suspend() noexcept { return {}; } - coro::suspend_always initial_suspend() noexcept { return {}; } + std::suspend_always initial_suspend() noexcept { return {}; } }; ~detached_task() { @@ -42,7 +40,7 @@ tmp.resume(); } - coro::coroutine_handle coro_; + std::coroutine_handle coro_; }; detached_task foo() { @@ -52,12 +50,12 @@ // check that the lifetime of the coroutine handle used to obtain the address is contained within single basic block, and hence does not live across suspension points. // CHECK-LABEL: final.suspend: // CHECK: %{{.+}} = call token @llvm.coro.save(i8* null) -// CHECK: %[[HDL_CAST1:.+]] = bitcast %"struct.std::experimental::coroutines_v1::coroutine_handle.0"* %[[HDL:.+]] to i8* +// CHECK: %[[HDL_CAST1:.+]] = bitcast %"struct.std::coroutine_handle.0"* %[[HDL:.+]] to i8* // CHECK: call void @llvm.lifetime.start.p0i8(i64 8, i8* %[[HDL_CAST1]]) -// CHECK: %[[CALL:.+]] = call i8* @_ZN13detached_task12promise_type13final_awaiter13await_suspendENSt12experimental13coroutines_v116coroutine_handleIS0_EE( -// CHECK: %[[HDL_CAST2:.+]] = getelementptr inbounds %"struct.std::experimental::coroutines_v1::coroutine_handle.0", %"struct.std::experimental::coroutines_v1::coroutine_handle.0"* %[[HDL]], i32 0, i32 0 +// CHECK: %[[CALL:.+]] = call i8* @_ZN13detached_task12promise_type13final_awaiter13await_suspendESt16coroutine_handleIS0_E( +// CHECK: %[[HDL_CAST2:.+]] = getelementptr inbounds %"struct.std::coroutine_handle.0", %"struct.std::coroutine_handle.0"* %[[HDL]], i32 0, i32 0 // CHECK: store i8* %[[CALL]], i8** %[[HDL_CAST2]], align 8 -// CHECK: %[[HDL_TRANSFER:.+]] = call i8* @_ZNKSt12experimental13coroutines_v116coroutine_handleIvE7addressEv(%"struct.std::experimental::coroutines_v1::coroutine_handle.0"* nonnull align 8 dereferenceable(8) %[[HDL]]) -// CHECK: %[[HDL_CAST3:.+]] = bitcast %"struct.std::experimental::coroutines_v1::coroutine_handle.0"* %[[HDL]] to i8* +// CHECK: %[[HDL_TRANSFER:.+]] = call i8* @_ZNKSt16coroutine_handleIvE7addressEv(%"struct.std::coroutine_handle.0"* nonnull align 8 dereferenceable(8) %[[HDL]]) +// CHECK: %[[HDL_CAST3:.+]] = bitcast %"struct.std::coroutine_handle.0"* %[[HDL]] to i8* // CHECK: call void @llvm.lifetime.end.p0i8(i64 8, i8* %[[HDL_CAST3]]) // CHECK: call void @llvm.coro.resume(i8* %[[HDL_TRANSFER]]) Index: clang/test/CodeGenCoroutines/coro-symmetric-transfer-02.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-symmetric-transfer-02.cpp +++ clang/test/CodeGenCoroutines/coro-symmetric-transfer-02.cpp @@ -2,19 +2,17 @@ #include "Inputs/coroutine.h" -namespace coro = std::experimental::coroutines_v1; - struct Task { struct promise_type { Task get_return_object() noexcept { - return Task{coro::coroutine_handle::from_promise(*this)}; + return Task{std::coroutine_handle::from_promise(*this)}; } void return_void() noexcept {} struct final_awaiter { bool await_ready() noexcept { return false; } - coro::coroutine_handle<> await_suspend(coro::coroutine_handle h) noexcept { + std::coroutine_handle<> await_suspend(std::coroutine_handle h) noexcept { h.destroy(); return {}; } @@ -25,7 +23,7 @@ final_awaiter final_suspend() noexcept { return {}; } - coro::suspend_always initial_suspend() noexcept { return {}; } + std::suspend_always initial_suspend() noexcept { return {}; } template auto await_transform(Awaitable &&awaitable) { @@ -33,7 +31,7 @@ } }; - using handle_t = coro::coroutine_handle; + using handle_t = std::coroutine_handle; class Awaiter { public: @@ -43,7 +41,7 @@ ~Awaiter(); bool await_ready() noexcept { return false; } - handle_t await_suspend(coro::coroutine_handle<> continuation) noexcept; + handle_t await_suspend(std::coroutine_handle<> continuation) noexcept; void await_resume(); private: @@ -91,10 +89,10 @@ // CHECK: br i1 %{{.+}}, label %[[CASE1_AWAIT_READY:.+]], label %[[CASE1_AWAIT_SUSPEND:.+]] // CHECK: [[CASE1_AWAIT_SUSPEND]]: // CHECK-NEXT: %{{.+}} = call token @llvm.coro.save(i8* null) -// CHECK-NEXT: %[[HANDLE11:.+]] = bitcast %"struct.std::experimental::coroutines_v1::coroutine_handle"* %[[TMP1:.+]] to i8* +// CHECK-NEXT: %[[HANDLE11:.+]] = bitcast %"struct.std::coroutine_handle"* %[[TMP1:.+]] to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* %[[HANDLE11]]) -// CHECK: %[[HANDLE12:.+]] = bitcast %"struct.std::experimental::coroutines_v1::coroutine_handle"* %[[TMP1]] to i8* +// CHECK: %[[HANDLE12:.+]] = bitcast %"struct.std::coroutine_handle"* %[[TMP1]] to i8* // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* %[[HANDLE12]]) // CHECK-NEXT: call void @llvm.coro.resume // CHECK-NEXT: %{{.+}} = call i8 @llvm.coro.suspend @@ -110,10 +108,10 @@ // CHECK: br i1 %{{.+}}, label %[[CASE2_AWAIT_READY:.+]], label %[[CASE2_AWAIT_SUSPEND:.+]] // CHECK: [[CASE2_AWAIT_SUSPEND]]: // CHECK-NEXT: %{{.+}} = call token @llvm.coro.save(i8* null) -// CHECK-NEXT: %[[HANDLE21:.+]] = bitcast %"struct.std::experimental::coroutines_v1::coroutine_handle"* %[[TMP2:.+]] to i8* +// CHECK-NEXT: %[[HANDLE21:.+]] = bitcast %"struct.std::coroutine_handle"* %[[TMP2:.+]] to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* %[[HANDLE21]]) -// CHECK: %[[HANDLE22:.+]] = bitcast %"struct.std::experimental::coroutines_v1::coroutine_handle"* %[[TMP2]] to i8* +// CHECK: %[[HANDLE22:.+]] = bitcast %"struct.std::coroutine_handle"* %[[TMP2]] to i8* // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* %[[HANDLE22]]) // CHECK-NEXT: call void @llvm.coro.resume // CHECK-NEXT: %{{.+}} = call i8 @llvm.coro.suspend Index: clang/test/CodeGenCoroutines/coro-unhandled-exception.cpp =================================================================== --- clang/test/CodeGenCoroutines/coro-unhandled-exception.cpp +++ clang/test/CodeGenCoroutines/coro-unhandled-exception.cpp @@ -3,8 +3,6 @@ #include "Inputs/coroutine.h" -namespace coro = std::experimental::coroutines_v1; - namespace std { using exception_ptr = int; exception_ptr current_exception(); @@ -13,11 +11,11 @@ struct coro_t { struct promise_type { coro_t get_return_object() { - coro::coroutine_handle{}; + std::coroutine_handle{}; return {}; } - coro::suspend_never initial_suspend() { return {}; } - coro::suspend_never final_suspend() noexcept { return {}; } + std::suspend_never initial_suspend() { return {}; } + std::suspend_never final_suspend() noexcept { return {}; } void return_void(){} void unhandled_exception() noexcept; }; @@ -50,9 +48,9 @@ // CHECK: [[TRYCONT]]: // CHECK-NEXT: br label %[[COROFIN:.+]] // CHECK: [[COROFIN]]: -// CHECK-NEXT: bitcast %"struct.std::experimental::coroutines_v1::suspend_never"* %{{.+}} to i8* +// CHECK-NEXT: bitcast %"struct.std::suspend_never"* %{{.+}} to i8* // CHECK-NEXT: call void @llvm.lifetime.start.p0i8( -// CHECK-NEXT: call void @"?final_suspend@promise_type@coro_t@@QEAA?AUsuspend_never@coroutines_v1@experimental@std@@XZ"( +// CHECK-NEXT: call void @"?final_suspend@promise_type@coro_t@@QEAA?AUsuspend_never@std@@XZ"( // CHECK-LPAD: @_Z1fv( // CHECK-LPAD: invoke void @_Z9may_throwv() @@ -71,6 +69,6 @@ // CHECK-LPAD: [[TRYCONT]]: // CHECK-LPAD: br label %[[COROFIN:.+]] // CHECK-LPAD: [[COROFIN]]: -// CHECK-LPAD-NEXT: bitcast %"struct.std::experimental::coroutines_v1::suspend_never"* %{{.+}} to i8* +// CHECK-LPAD-NEXT: bitcast %"struct.std::suspend_never"* %{{.+}} to i8* // CHECK-LPAD-NEXT: call void @llvm.lifetime.start.p0i8( // CHECK-LPAD-NEXT: call void @_ZN6coro_t12promise_type13final_suspendEv( Index: clang/test/CoverageMapping/coroutine.cpp =================================================================== --- clang/test/CoverageMapping/coroutine.cpp +++ clang/test/CoverageMapping/coroutine.cpp @@ -1,6 +1,6 @@ // RUN: %clang_cc1 -mllvm -emptyline-comment-coverage=false -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping %s -o - | FileCheck %s -namespace std::experimental { +namespace std { template struct coroutine_traits; @@ -16,16 +16,16 @@ template coroutine_handle(coroutine_handle) noexcept {} }; -} // namespace std::experimental +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; template <> -struct std::experimental::coroutine_traits { +struct std::coroutine_traits { struct promise_type { int get_return_object(); suspend_always initial_suspend(); Index: clang/test/Index/coroutines.cpp =================================================================== --- clang/test/Index/coroutines.cpp +++ clang/test/Index/coroutines.cpp @@ -1,8 +1,8 @@ // RUN: c-index-test -test-load-source all -c %s -fsyntax-only -target x86_64-apple-darwin9 -fcoroutines-ts -std=c++1z -I%S/../SemaCXX/Inputs | FileCheck %s #include "std-coroutine.h" -using std::experimental::suspend_always; -using std::experimental::suspend_never; +using std::suspend_always; +using std::suspend_never; struct promise_void { void get_return_object(); @@ -13,7 +13,7 @@ }; template <> -struct std::experimental::coroutine_traits { using promise_type = promise_void; }; +struct std::coroutine_traits { using promise_type = promise_void; }; void CoroutineTestRet() { co_return; Index: clang/test/PCH/coroutines.cpp =================================================================== --- clang/test/PCH/coroutines.cpp +++ clang/test/PCH/coroutines.cpp @@ -8,7 +8,7 @@ #ifndef HEADER #define HEADER -namespace std::experimental { +namespace std { template struct coroutine_traits; template struct coroutine_handle { @@ -21,15 +21,15 @@ template coroutine_handle(coroutine_handle) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; -template struct std::experimental::coroutine_traits { +template struct std::coroutine_traits { struct promise_type { void get_return_object() noexcept; suspend_always initial_suspend() noexcept; @@ -42,7 +42,7 @@ }; }; -template struct std::experimental::coroutine_traits { +template struct std::coroutine_traits { struct promise_type { int get_return_object() noexcept; suspend_always initial_suspend() noexcept; Index: clang/test/SemaCXX/Inputs/std-coroutine.h =================================================================== --- clang/test/SemaCXX/Inputs/std-coroutine.h +++ clang/test/SemaCXX/Inputs/std-coroutine.h @@ -3,7 +3,6 @@ #define STD_COROUTINE_H namespace std { -namespace experimental { template struct coroutine_traits { using promise_type = typename Ret::promise_type; }; @@ -31,7 +30,6 @@ void await_resume() noexcept {} }; -} // namespace experimental } // namespace std #endif // STD_COROUTINE_H Index: clang/test/SemaCXX/co_await-range-for.cpp =================================================================== --- clang/test/SemaCXX/co_await-range-for.cpp +++ clang/test/SemaCXX/co_await-range-for.cpp @@ -3,8 +3,7 @@ // RUN: -fblocks #include "Inputs/std-coroutine.h" -using namespace std::experimental; - +using namespace std; template struct Awaiter { Index: clang/test/SemaCXX/coreturn-eh.cpp =================================================================== --- clang/test/SemaCXX/coreturn-eh.cpp +++ clang/test/SemaCXX/coreturn-eh.cpp @@ -3,12 +3,12 @@ #include "Inputs/std-coroutine.h" -using std::experimental::suspend_always; -using std::experimental::suspend_never; +using std::suspend_always; +using std::suspend_never; struct awaitable { bool await_ready(); - void await_suspend(std::experimental::coroutine_handle<>); // FIXME: coroutine_handle + void await_suspend(std::coroutine_handle<>); // FIXME: coroutine_handle void await_resume(); } a; @@ -33,7 +33,7 @@ }; template -struct std::experimental::coroutine_traits { using promise_type = promise_void_return_value; }; +struct std::coroutine_traits { using promise_type = promise_void_return_value; }; VoidTagReturnValue test() { object x = {}; Index: clang/test/SemaCXX/coreturn.cpp =================================================================== --- clang/test/SemaCXX/coreturn.cpp +++ clang/test/SemaCXX/coreturn.cpp @@ -1,12 +1,12 @@ // RUN: %clang_cc1 -triple x86_64-apple-darwin9 %s -std=c++14 -fcoroutines-ts -fsyntax-only -Wignored-qualifiers -Wno-error=return-type -verify -fblocks -Wall -Wextra -Wno-error=unreachable-code #include "Inputs/std-coroutine.h" -using std::experimental::suspend_always; -using std::experimental::suspend_never; +using std::suspend_always; +using std::suspend_never; struct awaitable { bool await_ready(); - void await_suspend(std::experimental::coroutine_handle<>); // FIXME: coroutine_handle + void await_suspend(std::coroutine_handle<>); // FIXME: coroutine_handle void await_resume(); } a; @@ -72,16 +72,16 @@ }; template <> -struct std::experimental::coroutine_traits { using promise_type = promise_void; }; +struct std::coroutine_traits { using promise_type = promise_void; }; template -struct std::experimental::coroutine_traits { using promise_type = promise_void_return_value; }; +struct std::coroutine_traits { using promise_type = promise_void_return_value; }; template -struct std::experimental::coroutine_traits { using promise_type = promise_float; }; +struct std::coroutine_traits { using promise_type = promise_float; }; template -struct std::experimental::coroutine_traits { using promise_type = promise_int; }; +struct std::coroutine_traits { using promise_type = promise_int; }; void test0() { co_await a; } float test1() { co_await a; } Index: clang/test/SemaCXX/coroutine-final-suspend-noexcept.cpp =================================================================== --- clang/test/SemaCXX/coroutine-final-suspend-noexcept.cpp +++ clang/test/SemaCXX/coroutine-final-suspend-noexcept.cpp @@ -4,7 +4,6 @@ // RUN: %clang_cc1 -std=c++14 -fcoroutines-ts -verify %s -fcxx-exceptions -fexceptions -Wunused-result namespace std { -namespace experimental { template struct coroutine_traits { using promise_type = typename Ret::promise_type; }; @@ -34,10 +33,9 @@ ~suspend_always() noexcept(false); // expected-note 2 {{must be declared with 'noexcept'}} }; -} // namespace experimental } // namespace std -using namespace std::experimental; +using namespace std; struct A { bool await_ready(); Index: clang/test/SemaCXX/coroutine-rvo.cpp =================================================================== --- clang/test/SemaCXX/coroutine-rvo.cpp +++ clang/test/SemaCXX/coroutine-rvo.cpp @@ -1,6 +1,6 @@ // RUN: %clang_cc1 -verify -std=c++17 -fcoroutines-ts -fsyntax-only %s -namespace std::experimental { +namespace std { template struct coroutine_handle { coroutine_handle() = default; static coroutine_handle from_address(void *) noexcept; @@ -30,11 +30,11 @@ template struct coroutine_traits : public traits_sfinae_base {}; -} +} // namespace std struct suspend_never { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; Index: clang/test/SemaCXX/coroutine-seh.cpp =================================================================== --- clang/test/SemaCXX/coroutine-seh.cpp +++ clang/test/SemaCXX/coroutine-seh.cpp @@ -1,5 +1,5 @@ // RUN: %clang_cc1 -std=c++1z -fcoroutines-ts -verify %s -fcxx-exceptions -fexceptions -triple x86_64-windows-msvc -fms-extensions -namespace std::experimental { +namespace std { template struct coroutine_traits; template struct coroutine_handle { @@ -12,15 +12,15 @@ template coroutine_handle(coroutine_handle) noexcept; }; -} +} // namespace std struct suspend_always { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; -template <> struct std::experimental::coroutine_traits { +template <> struct std::coroutine_traits { struct promise_type { void get_return_object() noexcept; suspend_always initial_suspend() noexcept; Index: clang/test/SemaCXX/coroutine-traits-undefined-template.cpp =================================================================== --- clang/test/SemaCXX/coroutine-traits-undefined-template.cpp +++ clang/test/SemaCXX/coroutine-traits-undefined-template.cpp @@ -4,15 +4,14 @@ // RUN: %clang_cc1 -std=c++14 -fcoroutines-ts -verify %s -fcxx-exceptions -fexceptions -Wunused-result namespace std { -namespace experimental { template struct coroutine_traits { struct promise_type {}; }; -template<> struct coroutine_traits; // expected-note {{forward declaration of 'std::experimental::coroutine_traits'}} -}} // namespace std::experimental +template <> struct coroutine_traits; // expected-note {{forward declaration of 'std::coroutine_traits'}} +} // namespace std void uses_forward_declaration() { co_return; // expected-error {{this function cannot be a coroutine: missing definition of specialization 'coroutine_traits'}} Index: clang/test/SemaCXX/coroutine-unhandled_exception-warning.cpp =================================================================== --- clang/test/SemaCXX/coroutine-unhandled_exception-warning.cpp +++ clang/test/SemaCXX/coroutine-unhandled_exception-warning.cpp @@ -13,8 +13,8 @@ #include "Inputs/std-coroutine.h" -using std::experimental::suspend_always; -using std::experimental::suspend_never; +using std::suspend_always; +using std::suspend_never; #ifndef DISABLE_WARNING struct promise_void { // expected-note {{defined here}} @@ -28,7 +28,7 @@ }; template -struct std::experimental::coroutine_traits { using promise_type = promise_void; }; +struct std::coroutine_traits { using promise_type = promise_void; }; #ifndef DISABLE_WARNING void test0() { // expected-warning {{'promise_void' is required to declare the member 'unhandled_exception()' when exceptions are enabled}} Index: clang/test/SemaCXX/coroutine-uninitialized-warning-crash.cpp =================================================================== --- clang/test/SemaCXX/coroutine-uninitialized-warning-crash.cpp +++ clang/test/SemaCXX/coroutine-uninitialized-warning-crash.cpp @@ -1,8 +1,7 @@ // RUN: %clang_cc1 -triple x86_64-apple-darwin9 %s -std=c++14 -fcoroutines-ts -fsyntax-only -Wall -Wextra -Wuninitialized -fblocks #include "Inputs/std-coroutine.h" -using namespace std::experimental; - +using namespace std; struct A { bool await_ready() { return true; } Index: clang/test/SemaCXX/coroutine_handle-addres-return-type.cpp =================================================================== --- clang/test/SemaCXX/coroutine_handle-addres-return-type.cpp +++ clang/test/SemaCXX/coroutine_handle-addres-return-type.cpp @@ -1,6 +1,6 @@ // RUN: %clang_cc1 -verify %s -stdlib=libc++ -std=c++1z -fcoroutines-ts -fsyntax-only -namespace std::experimental { +namespace std { template struct coroutine_handle; @@ -32,11 +32,11 @@ template struct coroutine_traits : public traits_sfinae_base {}; -} // namespace std::experimental +} // namespace std struct suspend_never { bool await_ready() noexcept; - void await_suspend(std::experimental::coroutine_handle<>) noexcept; + void await_suspend(std::coroutine_handle<>) noexcept; void await_resume() noexcept; }; @@ -50,18 +50,18 @@ }; }; -namespace std::experimental { +namespace std { template <> struct coroutine_handle : public coroutine_handle<> { coroutine_handle *address() const; // expected-warning {{return type of 'coroutine_handle<>::address should be 'void*'}} }; -} // namespace std::experimental +} // namespace std struct awaitable { bool await_ready(); - std::experimental::coroutine_handle - await_suspend(std::experimental::coroutine_handle<> handle); + std::coroutine_handle + await_suspend(std::coroutine_handle<> handle); void await_resume(); } a; Index: clang/test/SemaCXX/coroutines-exp-namespace.cpp =================================================================== --- /dev/null +++ clang/test/SemaCXX/coroutines-exp-namespace.cpp @@ -0,0 +1,1450 @@ +// This file is the same with coroutines.cpp except the coroutine components are defined in std::experimental namespace. +// This intention of this test is to make sure the legacy imeplementation in std::experimental namespace could work. +// TODO: Remove this test once we didn't support + +// RUN: %clang_cc1 -std=c++2b -fsyntax-only -verify=expected,cxx20_2b,cxx2b %s -fcxx-exceptions -fexceptions -Wunused-result +// RUN: %clang_cc1 -std=c++20 -fsyntax-only -verify=expected,cxx14_20,cxx20_2b %s -fcxx-exceptions -fexceptions -Wunused-result +// RUN: %clang_cc1 -std=c++14 -fcoroutines-ts -fsyntax-only -verify=expected,cxx14_20 %s -fcxx-exceptions -fexceptions -Wunused-result + +void no_coroutine_traits_bad_arg_await() { + co_await a; // expected-error {{include }} + // expected-error@-1 {{use of undeclared identifier 'a'}} +} + +void no_coroutine_traits_bad_arg_yield() { + co_yield a; // expected-error {{include }} + // expected-error@-1 {{use of undeclared identifier 'a'}} +} + +void no_coroutine_traits_bad_arg_return() { + co_return a; // expected-error {{include }} + // expected-error@-1 {{use of undeclared identifier 'a'}} +} + +void no_coroutine_traits() { + co_await 4; // expected-error {{std::coroutine_traits type was not found; include before defining a coroutine; include if your version of libcxx is less than 14.0}} +} + +namespace std { +namespace experimental { + +template +struct void_t_imp { + using type = void; +}; +template +using void_t = typename void_t_imp::type; + +template +struct traits_sfinae_base {}; + +template +struct traits_sfinae_base> { + using promise_type = typename T::promise_type; +}; + +template +struct coroutine_traits : public traits_sfinae_base {}; +} // namespace experimental +} // namespace std + +template struct coro {}; +template +struct std::experimental::coroutine_traits, Ps...> { + using promise_type = Promise; +}; + +struct awaitable { + bool await_ready() noexcept; + template + void await_suspend(F) noexcept; + void await_resume() noexcept; +} a; + +struct suspend_always { + bool await_ready() noexcept { return false; } + template + void await_suspend(F) noexcept; + void await_resume() noexcept {} +}; + +struct suspend_never { + bool await_ready() noexcept { return true; } + template + void await_suspend(F) noexcept; + void await_resume() noexcept {} +}; + +struct auto_await_suspend { + bool await_ready(); + template auto await_suspend(F) {} + void await_resume(); +}; + +struct DummyVoidTag {}; +DummyVoidTag no_specialization() { // expected-error {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + co_await a; // expected-warning {{coroutine_traits defined in std::experimental namespace is deprecated. Consider updating libcxx and include instead of }} +} + +template +struct std::experimental::coroutine_traits {}; + +int no_promise_type() { // expected-error {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + co_await a; +} + +int no_promise_type_multiple_awaits(int) { // expected-error {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + co_await a; + co_await a; +} + +template <> +struct std::experimental::coroutine_traits { typedef int promise_type; }; +double bad_promise_type(double) { // expected-error {{this function cannot be a coroutine: 'experimental::coroutine_traits::promise_type' (aka 'int') is not a class}} + co_await a; +} + +template <> +struct std::experimental::coroutine_traits { + struct promise_type {}; +}; +double bad_promise_type_2(int) { // expected-error {{no member named 'initial_suspend'}} + co_yield 0; // expected-error {{no member named 'yield_value' in 'std::experimental::coroutine_traits::promise_type'}} +} + +struct promise; // expected-note {{forward declaration}} +struct promise_void; +struct void_tag {}; +template +struct std::experimental::coroutine_traits { using promise_type = promise; }; +template +struct std::experimental::coroutine_traits { using promise_type = promise_void; }; + +// FIXME: This diagnostic is terrible. +void undefined_promise() { // expected-error {{this function cannot be a coroutine: 'experimental::coroutine_traits::promise_type' (aka 'promise') is an incomplete type}} + co_await a; +} + +struct yielded_thing { + const char *p; + short a, b; +}; + +struct not_awaitable {}; + +struct promise { + void get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + awaitable yield_value(int); // expected-note 2{{candidate}} + awaitable yield_value(yielded_thing); // expected-note 2{{candidate}} + not_awaitable yield_value(void()); // expected-note 2{{candidate}} + void return_value(int); // expected-note 2{{here}} + void unhandled_exception(); +}; + +struct promise_void { + void get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); +}; + +void no_coroutine_handle() { // expected-error {{std::coroutine_handle type was not found; include before defining a coroutine; include if your version of libcxx is less than 14.0}} + //expected-note@-1 {{call to 'initial_suspend' implicitly required by the initial suspend point}} + co_return 5; //expected-note {{function is a coroutine due to use of 'co_return' here}} +} + +namespace std { +namespace experimental { +template +struct coroutine_handle { + static coroutine_handle from_address(void *) noexcept; +}; +template <> +struct coroutine_handle { + template + coroutine_handle(coroutine_handle) noexcept; + static coroutine_handle from_address(void *) noexcept; +}; +} // namespace experimental +} // namespace std + +void yield() { + co_yield 0; + co_yield {"foo", 1, 2}; + co_yield {1e100}; // expected-error {{cannot be narrowed}} expected-note {{explicit cast}} expected-warning {{implicit conversion}} expected-warning {{braces around scalar}} + co_yield {"foo", __LONG_LONG_MAX__}; // expected-error {{cannot be narrowed}} expected-note {{explicit cast}} expected-warning {{changes value}} + co_yield {"foo"}; + co_yield "foo"; // expected-error {{no matching}} + co_yield 1.0; + co_yield yield; // expected-error {{no member named 'await_ready' in 'not_awaitable'}} +} + +void check_auto_await_suspend() { + co_await auto_await_suspend{}; // Should compile successfully. +} + +void coreturn(int n) { + co_await a; + if (n == 0) + co_return 3; + if (n == 1) + co_return {4}; // expected-warning {{braces around scalar initializer}} + if (n == 2) + co_return "foo"; // expected-error {{cannot initialize a parameter of type 'int' with an lvalue of type 'const char [4]'}} + co_return 42; +} + +template +void co_await_non_dependent_arg(T) { + co_await a; +} +template void co_await_non_dependent_arg(int); + +void mixed_yield() { + co_yield 0; // expected-note {{use of 'co_yield'}} + return; // expected-error {{not allowed in coroutine}} +} + +void mixed_yield_invalid() { + co_yield blah; // expected-error {{use of undeclared identifier}} + // expected-note@-1 {{function is a coroutine due to use of 'co_yield'}} + return; // expected-error {{return statement not allowed in coroutine}} +} + +template +void mixed_yield_template(T) { + co_yield blah; // expected-error {{use of undeclared identifier}} + // expected-note@-1 {{function is a coroutine due to use of 'co_yield'}} + return; // expected-error {{return statement not allowed in coroutine}} +} + +template +void mixed_yield_template2(T) { + co_yield 42; + // expected-note@-1 {{function is a coroutine due to use of 'co_yield'}} + return; // expected-error {{return statement not allowed in coroutine}} +} + +template +void mixed_yield_template3(T v) { + co_yield blah(v); + // expected-note@-1 {{function is a coroutine due to use of 'co_yield'}} + return; // expected-error {{return statement not allowed in coroutine}} +} + +void mixed_await() { + co_await a; // expected-note {{use of 'co_await'}} + return; // expected-error {{not allowed in coroutine}} +} + +void mixed_await_invalid() { + co_await 42; // expected-error {{'int' is not a structure or union}} + // expected-note@-1 {{function is a coroutine due to use of 'co_await'}} + return; // expected-error {{not allowed in coroutine}} +} + +template +void mixed_await_template(T) { + co_await 42; + // expected-note@-1 {{function is a coroutine due to use of 'co_await'}} + return; // expected-error {{not allowed in coroutine}} +} + +template +void mixed_await_template2(T v) { + co_await v; // expected-error {{'long' is not a structure or union}} + // expected-note@-1 {{function is a coroutine due to use of 'co_await'}} + return; // expected-error {{not allowed in coroutine}} +} +template void mixed_await_template2(long); // expected-note {{requested here}} + +void only_coreturn(void_tag) { + co_return; // OK +} + +void mixed_coreturn(void_tag, bool b) { + if (b) + co_return; // expected-note {{use of 'co_return'}} + else + return; // expected-error {{not allowed in coroutine}} +} + +void mixed_coreturn_invalid(bool b) { + if (b) + co_return; // expected-note {{use of 'co_return'}} + // expected-error@-1 {{no member named 'return_void' in 'promise'}} + else + return; // expected-error {{not allowed in coroutine}} +} + +template +void mixed_coreturn_template(void_tag, bool b, T v) { + if (b) + co_return v; // expected-note {{use of 'co_return'}} + // expected-error@-1 {{no member named 'return_value' in 'promise_void'}} + else + return; // expected-error {{not allowed in coroutine}} +} +template void mixed_coreturn_template(void_tag, bool, int); // expected-note {{requested here}} + +template +void mixed_coreturn_template2(bool b, T) { + if (b) + co_return v; // expected-note {{use of 'co_return'}} + // expected-error@-1 {{use of undeclared identifier 'v'}} + else + return; // expected-error {{not allowed in coroutine}} +} + +struct CtorDtor { + CtorDtor() { + co_yield 0; // expected-error {{'co_yield' cannot be used in a constructor}} + } + CtorDtor(awaitable a) { + // The spec doesn't say this is ill-formed, but it must be. + co_await a; // expected-error {{'co_await' cannot be used in a constructor}} + } + ~CtorDtor() { + co_return 0; // expected-error {{'co_return' cannot be used in a destructor}} + } + void operator=(CtorDtor &) { + co_yield 0; // OK. + } + void operator=(CtorDtor const &) { + co_yield 0; // OK. + } + void operator=(CtorDtor &&) { + co_await a; // OK. + } + void operator=(CtorDtor const &&) { + co_await a; // OK. + } + void operator=(int) { + co_await a; // OK. Not a special member + } +}; + +namespace std { +class type_info; +} + +void unevaluated() { + decltype(co_await a); // expected-error {{'co_await' cannot be used in an unevaluated context}} + // expected-warning@-1 {{declaration does not declare anything}} + sizeof(co_await a); // expected-error {{'co_await' cannot be used in an unevaluated context}} + // expected-error@-1 {{invalid application of 'sizeof' to an incomplete type 'void'}} + // expected-warning@-2 {{expression with side effects has no effect in an unevaluated context}} + typeid(co_await a); // expected-error {{'co_await' cannot be used in an unevaluated context}} + // expected-warning@-1 {{expression with side effects has no effect in an unevaluated context}} + // expected-warning@-2 {{expression result unused}} + decltype(co_yield 1); // expected-error {{'co_yield' cannot be used in an unevaluated context}} + // expected-warning@-1 {{declaration does not declare anything}} + sizeof(co_yield 2); // expected-error {{'co_yield' cannot be used in an unevaluated context}} + // expected-error@-1 {{invalid application of 'sizeof' to an incomplete type 'void'}} + // expected-warning@-2 {{expression with side effects has no effect in an unevaluated context}} + typeid(co_yield 3); // expected-error {{'co_yield' cannot be used in an unevaluated context}} + // expected-warning@-1 {{expression with side effects has no effect in an unevaluated context}} + // expected-warning@-2 {{expression result unused}} +} + +// [expr.await]p2: "An await-expression shall not appear in a default argument." +// FIXME: A better diagnostic would explicitly state that default arguments are +// not allowed. A user may not understand that this is "outside a function." +void default_argument(int arg = co_await 0) {} // expected-error {{'co_await' cannot be used outside a function}} + +void await_in_catch_coroutine() { + try { + } catch (...) { // FIXME: Emit a note diagnostic pointing out the try handler on this line. + []() -> void { co_await a; }(); // OK + co_await a; // expected-error {{'co_await' cannot be used in the handler of a try block}} + } +} + +void await_nested_in_catch_coroutine() { + try { + } catch (...) { // FIXME: Emit a note diagnostic pointing out the try handler on this line. + try { + co_await a; // expected-error {{'co_await' cannot be used in the handler of a try block}} + []() -> void { co_await a; }(); // OK + } catch (...) { + co_return 123; + } + } +} + +void await_in_lambda_in_catch_coroutine() { + try { + } catch (...) { + []() -> void { co_await a; }(); // OK + } +} + +void yield_in_catch_coroutine() { + try { + } catch (...) { + co_yield 1; // expected-error {{'co_yield' cannot be used in the handler of a try block}} + } +} + +void return_in_catch_coroutine() { + try { + } catch (...) { + co_return 123; // OK + } +} + +constexpr auto constexpr_deduced_return_coroutine() { + co_yield 0; // expected-error {{'co_yield' cannot be used in a constexpr function}} + // expected-error@-1 {{'co_yield' cannot be used in a function with a deduced return type}} +} + +void varargs_coroutine(const char *, ...) { + co_await a; // expected-error {{'co_await' cannot be used in a varargs function}} +} + +auto deduced_return_coroutine() { + co_await a; // expected-error {{'co_await' cannot be used in a function with a deduced return type}} +} + +struct outer {}; +struct await_arg_1 {}; +struct await_arg_2 {}; + +namespace adl_ns { +struct coawait_arg_type {}; +awaitable operator co_await(coawait_arg_type) noexcept; +} // namespace adl_ns + +namespace dependent_operator_co_await_lookup { +template void await_template(T t) { + // no unqualified lookup results + co_await t; // expected-error {{no member named 'await_ready' in 'dependent_operator_co_await_lookup::not_awaitable'}} + // expected-error@-1 {{call to function 'operator co_await' that is neither visible in the template definition nor found by argument-dependent lookup}} +}; +template void await_template(awaitable); + +struct indirectly_awaitable { + indirectly_awaitable(outer); +}; +awaitable operator co_await(indirectly_awaitable); // expected-note {{should be declared prior to}} +template void await_template(indirectly_awaitable); + +struct not_awaitable {}; +template void await_template(not_awaitable); // expected-note {{instantiation}} + +template void await_template_2(T t) { + // one unqualified lookup result + co_await t; +}; +template void await_template(outer); // expected-note {{instantiation}} +template void await_template_2(outer); + +struct transform_awaitable {}; +struct transformed {}; + +struct transform_promise { + typedef transform_awaitable await_arg; + coro get_return_object(); + transformed initial_suspend(); + ::adl_ns::coawait_arg_type final_suspend() noexcept; + transformed await_transform(transform_awaitable); + void unhandled_exception(); + void return_void(); +}; +template +struct basic_promise { + typedef AwaitArg await_arg; + coro get_return_object(); + awaitable initial_suspend(); + awaitable final_suspend() noexcept; + void unhandled_exception(); + void return_void(); +}; + +awaitable operator co_await(await_arg_1); + +template +coro await_template_3(U t) { + co_await t; +} + +template coro> await_template_3>(await_arg_1); + +template +struct dependent_member { + coro mem_fn() const { + co_await typename T::await_arg{}; // expected-error {{call to function 'operator co_await'}}} + } + template + coro dep_mem_fn(U t) { + co_await t; + } +}; + +template <> +struct dependent_member { + // FIXME this diagnostic is terrible + coro mem_fn() const { // expected-error {{no member named 'await_ready' in 'dependent_operator_co_await_lookup::transformed'}} + // expected-note@-1 {{call to 'initial_suspend' implicitly required by the initial suspend point}} + // expected-note@+1 {{function is a coroutine due to use of 'co_await' here}} + co_await transform_awaitable{}; + // expected-error@-1 {{no member named 'await_ready'}} + } + template + coro dep_mem_fn(U u) { co_await u; } +}; + +awaitable operator co_await(await_arg_2); // expected-note {{'operator co_await' should be declared prior to the call site}} + +template struct dependent_member, 0>; +template struct dependent_member, 0>; // expected-note {{in instantiation}} + +template <> +coro +// FIXME this diagnostic is terrible +dependent_member::dep_mem_fn(int) { // expected-error {{no member named 'await_ready' in 'dependent_operator_co_await_lookup::transformed'}} + //expected-note@-1 {{call to 'initial_suspend' implicitly required by the initial suspend point}} + //expected-note@+1 {{function is a coroutine due to use of 'co_await' here}} + co_await transform_awaitable{}; + // expected-error@-1 {{no member named 'await_ready'}} +} + +void operator co_await(transform_awaitable) = delete; +awaitable operator co_await(transformed); + +template coro + dependent_member::dep_mem_fn(transform_awaitable); + +template <> +coro dependent_member::dep_mem_fn(long) { + co_await transform_awaitable{}; +} + +template <> +struct dependent_member { + coro mem_fn() const { + co_await transform_awaitable{}; + } +}; + +template coro await_template_3(transform_awaitable); +template struct dependent_member; +template coro dependent_member::dep_mem_fn(transform_awaitable); +} // namespace dependent_operator_co_await_lookup + +struct yield_fn_tag {}; +template <> +struct std::experimental::coroutine_traits { + struct promise_type { + // FIXME: add an await_transform overload for functions + awaitable yield_value(int()); + void return_value(int()); + + suspend_never initial_suspend(); + suspend_never final_suspend() noexcept; + void get_return_object(); + void unhandled_exception(); + }; +}; + +namespace placeholder { +awaitable f(), f(int); // expected-note 4{{possible target}} +int g(), g(int); // expected-note 2{{candidate}} +void x() { + co_await f; // expected-error {{reference to overloaded function}} +} +void y() { + co_yield g; // expected-error {{no matching member function for call to 'yield_value'}} +} +void z() { + co_await a; + co_return g; // expected-error {{address of overloaded function 'g' does not match required type 'int'}} +} + +void x(yield_fn_tag) { + co_await f; // expected-error {{reference to overloaded function}} +} +void y(yield_fn_tag) { + co_yield g; +} +void z(yield_fn_tag) { + co_await a; + co_return g; +} +} // namespace placeholder + +struct bad_promise_1 { + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); + void return_void(); +}; +coro missing_get_return_object() { // expected-error {{no member named 'get_return_object' in 'bad_promise_1'}} + co_await a; +} + +struct bad_promise_2 { + coro get_return_object(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); + void return_void(); +}; +// FIXME: This shouldn't happen twice +coro missing_initial_suspend() { // expected-error {{no member named 'initial_suspend' in 'bad_promise_2'}} + co_await a; +} + +struct bad_promise_3 { + coro get_return_object(); + suspend_always initial_suspend(); + void unhandled_exception(); + void return_void(); +}; +coro missing_final_suspend() noexcept { // expected-error {{no member named 'final_suspend' in 'bad_promise_3'}} + co_await a; +} + +struct bad_promise_4 { + coro get_return_object(); + not_awaitable initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); +}; +// FIXME: This diagnostic is terrible. +coro bad_initial_suspend() { // expected-error {{no member named 'await_ready' in 'not_awaitable'}} + // expected-note@-1 {{call to 'initial_suspend' implicitly required by the initial suspend point}} + co_await a; // expected-note {{function is a coroutine due to use of 'co_await' here}} +} + +struct bad_promise_5 { + coro get_return_object(); + suspend_always initial_suspend(); + not_awaitable final_suspend() noexcept; + void return_void(); +}; +// FIXME: This diagnostic is terrible. +coro bad_final_suspend() { // expected-error {{no member named 'await_ready' in 'not_awaitable'}} + // expected-note@-1 {{call to 'final_suspend' implicitly required by the final suspend point}} + co_await a; // expected-note {{function is a coroutine due to use of 'co_await' here}} +} + +struct bad_promise_6 { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); + void return_void(); // expected-note 2 {{member 'return_void' first declared here}} + void return_value(int) const; // expected-note 2 {{member 'return_value' first declared here}} + void return_value(int); +}; +coro bad_implicit_return() { // expected-error {{'bad_promise_6' declares both 'return_value' and 'return_void'}} + co_await a; +} + +template +coro bad_implicit_return_dependent(T) { // expected-error {{'bad_promise_6' declares both 'return_value' and 'return_void'}} + co_await a; +} +template coro bad_implicit_return_dependent(bad_promise_6); // expected-note {{in instantiation}} + +struct bad_promise_7 { // expected-note 2 {{defined here}} + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); +}; +coro no_unhandled_exception() { // expected-error {{'bad_promise_7' is required to declare the member 'unhandled_exception()'}} + co_await a; +} + +template +coro no_unhandled_exception_dependent(T) { // expected-error {{'bad_promise_7' is required to declare the member 'unhandled_exception()'}} + co_await a; +} +template coro no_unhandled_exception_dependent(bad_promise_7); // expected-note {{in instantiation}} + +struct bad_promise_base { +private: + void return_void(); // expected-note 2 {{declared private here}} +}; +struct bad_promise_8 : bad_promise_base { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception() __attribute__((unavailable)); // expected-note 2 {{marked unavailable here}} + void unhandled_exception() const; + void unhandled_exception(void *) const; +}; +coro calls_unhandled_exception() { + // expected-error@-1 {{'unhandled_exception' is unavailable}} + // expected-error@-2 {{'return_void' is a private member}} + co_await a; +} + +template +coro calls_unhandled_exception_dependent(T) { + // expected-error@-1 {{'unhandled_exception' is unavailable}} + // expected-error@-2 {{'return_void' is a private member}} + co_await a; +} +template coro calls_unhandled_exception_dependent(bad_promise_8); // expected-note {{in instantiation}} + +struct bad_promise_9 { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void await_transform(void *); + awaitable await_transform(int) __attribute__((unavailable)); // expected-note {{explicitly marked unavailable}} + void return_void(); + void unhandled_exception(); +}; +coro calls_await_transform() { + co_await 42; // expected-error {{'await_transform' is unavailable}} +} + +struct bad_promise_10 { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + int await_transform; + void return_void(); + void unhandled_exception(); +}; +coro bad_coawait() { + // FIXME this diagnostic is terrible + co_await 42; // expected-error {{called object type 'int' is not a function or function pointer}} + // expected-note@-1 {{call to 'await_transform' implicitly required by 'co_await' here}} +} + +struct call_operator { + template + awaitable operator()(Args...) const { return a; } +}; +void ret_void(); +struct good_promise_1 { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); + static const call_operator await_transform; + using Fn = void (*)(); + Fn return_void = ret_void; +}; +const call_operator good_promise_1::await_transform; +coro ok_static_coawait() { + // FIXME this diagnostic is terrible + co_await 42; +} + +template void ok_generic_lambda_coawait_PR41909() { + [](auto &arg) -> coro { // expected-warning {{expression result unused}} + co_await 12; + }; + [](auto &arg) -> coro { + co_await 24; + }("argument"); + [](auto &arg) -> coro { // expected-warning {{expression result unused}} + []() -> coro { + co_await 36; + }; + co_await 48; + }; +} +template void ok_generic_lambda_coawait_PR41909(); // expected-note {{in instantiation of function template specialization 'ok_generic_lambda_coawait_PR41909' requested here}} + +template <> struct std::experimental::coroutine_traits { using promise_type = promise; }; + +int main(int, const char **) { + co_await a; // expected-error {{'co_await' cannot be used in the 'main' function}} +} + +struct good_promise_2 { + float get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); +}; +template <> struct std::experimental::coroutine_handle {}; + +template <> struct std::experimental::coroutine_traits { using promise_type = good_promise_2; }; + +float badly_specialized_coro_handle() { // expected-error {{std::coroutine_handle missing a member named 'from_address'}} + //expected-note@-1 {{call to 'initial_suspend' implicitly required by the initial suspend point}} + co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}} +} + +namespace std { +struct nothrow_t {}; +constexpr nothrow_t nothrow = {}; +} // namespace std + +using SizeT = decltype(sizeof(int)); + +void *operator new(SizeT __sz, const std::nothrow_t &) noexcept; +void operator delete(void *__p, const std::nothrow_t &)noexcept; + +struct promise_on_alloc_failure_tag {}; + +template <> +struct std::experimental::coroutine_traits { + struct promise_type { + int get_return_object() {} + suspend_always initial_suspend() { return {}; } + suspend_always final_suspend() noexcept { return {}; } + void return_void() {} + int get_return_object_on_allocation_failure(); // expected-error{{'promise_type': 'get_return_object_on_allocation_failure()' must be a static member function}} + void unhandled_exception(); + }; +}; + +extern "C" int f(promise_on_alloc_failure_tag) { + co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}} +} + +struct bad_promise_11 { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); + void return_void(); + +private: + static coro get_return_object_on_allocation_failure(); // expected-note 2 {{declared private here}} +}; +coro private_alloc_failure_handler() { + // expected-error@-1 {{'get_return_object_on_allocation_failure' is a private member of 'bad_promise_11'}} + co_return; // FIXME: Add a "declared coroutine here" note. +} + +template +coro dependent_private_alloc_failure_handler(T) { + // expected-error@-1 {{'get_return_object_on_allocation_failure' is a private member of 'bad_promise_11'}} + co_return; // FIXME: Add a "declared coroutine here" note. +} +template coro dependent_private_alloc_failure_handler(bad_promise_11); +// expected-note@-1 {{requested here}} + +struct bad_promise_12 { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); + void return_void(); + static coro get_return_object_on_allocation_failure(); + + static void *operator new(SizeT); + // expected-error@-1 2 {{'operator new' is required to have a non-throwing noexcept specification when the promise type declares 'get_return_object_on_allocation_failure()'}} +}; +coro throwing_in_class_new() { // expected-note {{call to 'operator new' implicitly required by coroutine function here}} + co_return; +} + +template +coro dependent_throwing_in_class_new(T) { // expected-note {{call to 'operator new' implicitly required by coroutine function here}} + co_return; +} +template coro dependent_throwing_in_class_new(bad_promise_12); // expected-note {{requested here}} + +struct good_promise_13 { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); + void return_void(); + static coro get_return_object_on_allocation_failure(); +}; +coro uses_nothrow_new() { + co_return; +} + +template +coro dependent_uses_nothrow_new(T) { + co_return; +} +template coro dependent_uses_nothrow_new(good_promise_13); + +struct good_promise_custom_new_operator { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); + void *operator new(SizeT, double, float, int); +}; + +coro +good_coroutine_calls_custom_new_operator(double, float, int) { + co_return; +} + +struct coroutine_nonstatic_member_struct; + +struct good_promise_nonstatic_member_custom_new_operator { + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); + void *operator new(SizeT, coroutine_nonstatic_member_struct &, double); +}; + +struct good_promise_noexcept_custom_new_operator { + static coro get_return_object_on_allocation_failure(); + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); + void *operator new(SizeT, double, float, int) noexcept; +}; + +coro +good_coroutine_calls_noexcept_custom_new_operator(double, float, int) { + co_return; +} + +struct mismatch_gro_type_tag1 {}; +template <> +struct std::experimental::coroutine_traits { + struct promise_type { + void get_return_object() {} //expected-note {{member 'get_return_object' declared here}} + suspend_always initial_suspend() { return {}; } + suspend_always final_suspend() noexcept { return {}; } + void return_void() {} + void unhandled_exception(); + }; +}; + +extern "C" int f(mismatch_gro_type_tag1) { + // expected-error@-1 {{cannot initialize return object of type 'int' with an rvalue of type 'void'}} + co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}} +} + +struct mismatch_gro_type_tag2 {}; +template <> +struct std::experimental::coroutine_traits { + struct promise_type { + void *get_return_object() {} //expected-note {{member 'get_return_object' declared here}} + suspend_always initial_suspend() { return {}; } + suspend_always final_suspend() noexcept { return {}; } + void return_void() {} + void unhandled_exception(); + }; +}; + +extern "C" int f(mismatch_gro_type_tag2) { + // cxx2b-error@-1 {{cannot initialize return object of type 'int' with an rvalue of type 'void *'}} + // cxx14_20-error@-2 {{cannot initialize return object of type 'int' with an lvalue of type 'void *'}} + co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}} +} + +struct mismatch_gro_type_tag3 {}; +template <> +struct std::experimental::coroutine_traits { + struct promise_type { + int get_return_object() {} + static void get_return_object_on_allocation_failure() {} //expected-note {{member 'get_return_object_on_allocation_failure' declared here}} + suspend_always initial_suspend() { return {}; } + suspend_always final_suspend() noexcept { return {}; } + void return_void() {} + void unhandled_exception(); + }; +}; + +extern "C" int f(mismatch_gro_type_tag3) { + // expected-error@-1 {{cannot initialize return object of type 'int' with an rvalue of type 'void'}} + co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}} +} + +struct mismatch_gro_type_tag4 {}; +template <> +struct std::experimental::coroutine_traits { + struct promise_type { + int get_return_object() {} + static char *get_return_object_on_allocation_failure() {} //expected-note {{member 'get_return_object_on_allocation_failure' declared}} + suspend_always initial_suspend() { return {}; } + suspend_always final_suspend() noexcept { return {}; } + void return_void() {} + void unhandled_exception(); + }; +}; + +extern "C" int f(mismatch_gro_type_tag4) { + // expected-error@-1 {{cannot initialize return object of type 'int' with an rvalue of type 'char *'}} + co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}} +} + +struct bad_promise_no_return_func { // expected-note {{'bad_promise_no_return_func' defined here}} + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void unhandled_exception(); +}; +// FIXME: The PDTS currently specifies this as UB, technically forbidding a +// diagnostic. +coro no_return_value_or_return_void() { + // expected-error@-1 {{'bad_promise_no_return_func' must declare either 'return_value' or 'return_void'}} + co_await a; +} + +struct bad_await_suspend_return { + bool await_ready(); + // expected-error@+1 {{return type of 'await_suspend' is required to be 'void' or 'bool' (have 'char')}} + char await_suspend(std::experimental::coroutine_handle<>); + void await_resume(); +}; +struct bad_await_ready_return { + // expected-note@+1 {{return type of 'await_ready' is required to be contextually convertible to 'bool'}} + void await_ready(); + bool await_suspend(std::experimental::coroutine_handle<>); + void await_resume(); +}; +struct await_ready_explicit_bool { + struct BoolT { + explicit operator bool() const; + }; + BoolT await_ready(); + void await_suspend(std::experimental::coroutine_handle<>); + void await_resume(); +}; +template +struct await_suspend_type_test { + bool await_ready(); + // expected-error@+2 {{return type of 'await_suspend' is required to be 'void' or 'bool' (have 'bool &')}} + // expected-error@+1 {{return type of 'await_suspend' is required to be 'void' or 'bool' (have 'bool &&')}} + SuspendTy await_suspend(std::experimental::coroutine_handle<>); + // cxx20_2b-warning@-1 {{volatile-qualified return type 'const volatile bool' is deprecated}} + void await_resume(); +}; +void test_bad_suspend() { + { + // FIXME: The actual error emitted here is terrible, and no number of notes can save it. + bad_await_ready_return a; + // expected-error@+1 {{value of type 'void' is not contextually convertible to 'bool'}} + co_await a; // expected-note {{call to 'await_ready' implicitly required by coroutine function here}} + } + { + bad_await_suspend_return b; + co_await b; // expected-note {{call to 'await_suspend' implicitly required by coroutine function here}} + } + { + await_ready_explicit_bool c; + co_await c; // OK + } + { + await_suspend_type_test a; + await_suspend_type_test b; + await_suspend_type_test c; + await_suspend_type_test d; // cxx20_2b-note {{in instantiation of template class}} + co_await a; // expected-note {{call to 'await_suspend' implicitly required by coroutine function here}} + co_await b; // expected-note {{call to 'await_suspend' implicitly required by coroutine function here}} + co_await c; // OK + co_await d; // OK + } +} + +template +struct NoCopy { + NoCopy(NoCopy const &) = delete; // expected-note 2 {{deleted here}} +}; +template +void test_dependent_param(T t, U) { + // expected-error@-1 {{call to deleted constructor of 'NoCopy<0>'}} + // expected-error@-2 {{call to deleted constructor of 'NoCopy<1>'}} + ((void)t); + co_return 42; +} +template void test_dependent_param(NoCopy<0>, NoCopy<1>); // expected-note {{requested here}} + +namespace CoroHandleMemberFunctionTest { +struct CoroMemberTag {}; +struct BadCoroMemberTag {}; + +template +constexpr bool IsSameV = false; +template +constexpr bool IsSameV = true; + +template +struct TypeTest { + template + static constexpr bool IsSame = IsSameV; + + template + static constexpr bool MatchesArgs = IsSameV>; +}; + +template +struct AwaitReturnsType { + bool await_ready() const; + void await_suspend(...) const; + T await_resume() const; +}; + +template +struct CoroMemberPromise { + using TraitsT = std::experimental::coroutine_traits; + using TypeTestT = TypeTest; + using AwaitTestT = AwaitReturnsType; + + CoroMemberTag get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + + AwaitTestT yield_value(int); + + void return_void(); + void unhandled_exception(); +}; + +} // namespace CoroHandleMemberFunctionTest + +template +struct ::std::experimental::coroutine_traits { + using promise_type = CoroHandleMemberFunctionTest::CoroMemberPromise; +}; + +namespace CoroHandleMemberFunctionTest { +struct TestType { + + CoroMemberTag test_qual() { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + static_assert(!TC.MatchesArgs, ""); + static_assert(!TC.MatchesArgs, ""); + } + + CoroMemberTag test_sanity(int *) const { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); // expected-error {{static_assert failed}} + static_assert(TC.MatchesArgs, ""); // expected-error {{static_assert failed}} + static_assert(TC.MatchesArgs, ""); + } + + CoroMemberTag test_qual(int *, const float &&, volatile void *volatile) const { + // cxx20_2b-warning@-1 {{volatile-qualified parameter type}} + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + + CoroMemberTag test_qual() const volatile { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + + CoroMemberTag test_ref_qual() & { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + CoroMemberTag test_ref_qual() const & { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + CoroMemberTag test_ref_qual() && { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + CoroMemberTag test_ref_qual(const char *&) const volatile && { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + + CoroMemberTag test_args(int) { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + CoroMemberTag test_args(int, long &, void *) const { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + + template + CoroMemberTag test_member_template(Args...) const && { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + + static CoroMemberTag test_static() { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs<>, ""); + static_assert(!TC.MatchesArgs, ""); + static_assert(!TC.MatchesArgs, ""); + static_assert(!TC.MatchesArgs, ""); + } + + static CoroMemberTag test_static(volatile void *const, char &&) { + auto TC = co_yield 0; + static_assert(TC.MatchesArgs, ""); + } + + template + static CoroMemberTag test_static_template(const char *volatile &, unsigned) { + auto TC = co_yield 0; + using TCT = decltype(TC); + static_assert(TCT::MatchesArgs, ""); + static_assert(!TCT::MatchesArgs, ""); + } + + BadCoroMemberTag test_diagnostics() { + // expected-error@-1 {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + co_return; + } + BadCoroMemberTag test_diagnostics(int) const && { + // expected-error@-1 {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + co_return; + } + + static BadCoroMemberTag test_static_diagnostics(long *) { + // expected-error@-1 {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + co_return; + } +}; + +template CoroMemberTag TestType::test_member_template(long, const char *) const &&; +template CoroMemberTag TestType::test_static_template(const char *volatile &, unsigned); + +template +struct DepTestType { + + CoroMemberTag test_sanity(int *) const { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); // expected-error {{static_assert failed}} + static_assert(TC.template MatchesArgs<>, ""); // expected-error {{static_assert failed}} + static_assert(TC.template MatchesArgs, ""); + } + + CoroMemberTag test_qual() { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + static_assert(!TC.template MatchesArgs, ""); + static_assert(!TC.template MatchesArgs, ""); + } + + CoroMemberTag test_qual(int *, const float &&, volatile void *volatile) const { + // cxx20_2b-warning@-1 {{volatile-qualified parameter type}} + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + + CoroMemberTag test_qual() const volatile { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + + CoroMemberTag test_ref_qual() & { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + CoroMemberTag test_ref_qual() const & { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + CoroMemberTag test_ref_qual() && { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + CoroMemberTag test_ref_qual(const char *&) const volatile && { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + + CoroMemberTag test_args(int) { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + CoroMemberTag test_args(int, long &, void *) const { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + + template + CoroMemberTag test_member_template(UArgs...) const && { + auto TC = co_yield 0; + static_assert(TC.template MatchesArgs, ""); + } + + static CoroMemberTag test_static() { + auto TC = co_yield 0; + using TCT = decltype(TC); + static_assert(TCT::MatchesArgs<>, ""); + static_assert(!TCT::MatchesArgs, ""); + static_assert(!TCT::MatchesArgs, ""); + static_assert(!TCT::MatchesArgs, ""); + + // Ensure diagnostics are actually being generated here + static_assert(TCT::MatchesArgs, ""); // expected-error {{static_assert failed}} + } + + static CoroMemberTag test_static(volatile void *const, char &&) { + auto TC = co_yield 0; + using TCT = decltype(TC); + static_assert(TCT::MatchesArgs, ""); + } + + template + static CoroMemberTag test_static_template(const char *volatile &, unsigned) { + auto TC = co_yield 0; + using TCT = decltype(TC); + static_assert(TCT::MatchesArgs, ""); + static_assert(!TCT::MatchesArgs, ""); + } +}; + +template struct DepTestType; // expected-note {{requested here}} +template CoroMemberTag DepTestType::test_member_template(long, const char *) const &&; + +template CoroMemberTag DepTestType::test_static_template(const char *volatile &, unsigned); + +struct bad_promise_deleted_constructor { + // expected-note@+1 {{'bad_promise_deleted_constructor' has been explicitly marked deleted here}} + bad_promise_deleted_constructor() = delete; + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); +}; + +coro +bad_coroutine_calls_deleted_promise_constructor() { + // expected-error@-1 {{call to deleted constructor of 'std::experimental::coroutine_traits>::promise_type' (aka 'CoroHandleMemberFunctionTest::bad_promise_deleted_constructor')}} + co_return; +} + +// Test that, when the promise type has a constructor whose signature matches +// that of the coroutine function, that constructor is used. If no matching +// constructor exists, the default constructor is used as a fallback. If no +// matching constructors exist at all, an error is emitted. This is an +// experimental feature that will be proposed for the Coroutines TS. + +struct good_promise_default_constructor { + good_promise_default_constructor(double, float, int); + good_promise_default_constructor() = default; + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); +}; + +coro +good_coroutine_calls_default_constructor() { + co_return; +} + +struct some_class; + +struct good_promise_custom_constructor { + good_promise_custom_constructor(some_class &, float, int); + good_promise_custom_constructor(double, float, int); + good_promise_custom_constructor() = delete; + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); +}; + +coro +good_coroutine_calls_custom_constructor(double, float, int) { + co_return; +} + +struct some_class { + coro + good_coroutine_calls_custom_constructor(float, int) { + co_return; + } + coro static good_coroutine_calls_custom_constructor(double, float, int) { + co_return; + } +}; + +struct bad_promise_no_matching_constructor { + bad_promise_no_matching_constructor(int, int, int); + // expected-note@+1 2 {{'bad_promise_no_matching_constructor' has been explicitly marked deleted here}} + bad_promise_no_matching_constructor() = delete; + coro get_return_object(); + suspend_always initial_suspend(); + suspend_always final_suspend() noexcept; + void return_void(); + void unhandled_exception(); +}; + +coro +bad_coroutine_calls_with_no_matching_constructor(int, int) { + // expected-error@-1 {{call to deleted constructor of 'std::experimental::coroutine_traits, int, int>::promise_type' (aka 'CoroHandleMemberFunctionTest::bad_promise_no_matching_constructor')}} + co_return; +} + +struct some_class2 { + coro + bad_coroutine_calls_with_no_matching_constructor(int, int, int) { + // expected-error@-1 {{call to deleted constructor}} + co_return; + } +}; + +} // namespace CoroHandleMemberFunctionTest + +class awaitable_no_unused_warn { +public: + using handle_type = std::experimental::coroutine_handle<>; + constexpr bool await_ready() noexcept { return false; } + void await_suspend(handle_type) noexcept {} + int await_resume() noexcept { return 1; } +}; + +class awaitable_unused_warn { +public: + using handle_type = std::experimental::coroutine_handle<>; + constexpr bool await_ready() noexcept { return false; } + void await_suspend(handle_type) noexcept {} + [[nodiscard]] int await_resume() noexcept { return 1; } +}; + +template +struct check_warning_promise { + coro get_return_object(); + Await initial_suspend(); + Await final_suspend() noexcept; + Await yield_value(int); + void return_void(); + void unhandled_exception(); +}; + +coro> +test_no_unused_warning() { + co_await awaitable_no_unused_warn(); + co_yield 42; +} + +coro> +test_unused_warning() { + co_await awaitable_unused_warn(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} + co_yield 42; // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} +} + +struct missing_await_ready { + void await_suspend(std::experimental::coroutine_handle<>); + void await_resume(); +}; +struct missing_await_suspend { + bool await_ready(); + void await_resume(); +}; +struct missing_await_resume { + bool await_ready(); + void await_suspend(std::experimental::coroutine_handle<>); +}; + +void test_missing_awaitable_members() { + co_await missing_await_ready{}; // expected-error {{no member named 'await_ready' in 'missing_await_ready'}} + co_await missing_await_suspend{}; // expected-error {{no member named 'await_suspend' in 'missing_await_suspend'}} + co_await missing_await_resume{}; // expected-error {{no member named 'await_resume' in 'missing_await_resume'}} +} Index: clang/test/SemaCXX/coroutines.cpp =================================================================== --- clang/test/SemaCXX/coroutines.cpp +++ clang/test/SemaCXX/coroutines.cpp @@ -6,27 +6,26 @@ // RUN: %clang_cc1 -std=c++14 -fcoroutines-ts -fsyntax-only -verify=expected,cxx14_20 %s -fcxx-exceptions -fexceptions -Wunused-result void no_coroutine_traits_bad_arg_await() { - co_await a; // expected-error {{include }} + co_await a; // expected-error {{include }} // expected-error@-1 {{use of undeclared identifier 'a'}} } void no_coroutine_traits_bad_arg_yield() { - co_yield a; // expected-error {{include }} + co_yield a; // expected-error {{include }} // expected-error@-1 {{use of undeclared identifier 'a'}} } void no_coroutine_traits_bad_arg_return() { - co_return a; // expected-error {{include }} + co_return a; // expected-error {{include }} // expected-error@-1 {{use of undeclared identifier 'a'}} } void no_coroutine_traits() { - co_await 4; // expected-error {{std::experimental::coroutine_traits type was not found; include }} + co_await 4; // expected-error {{std::coroutine_traits type was not found; include }} } namespace std { -namespace experimental { template struct void_t_imp { @@ -45,11 +44,11 @@ template struct coroutine_traits : public traits_sfinae_base {}; -}} // namespace std::experimental +} // end of namespace std template struct coro {}; template -struct std::experimental::coroutine_traits, Ps...> { +struct std::coroutine_traits, Ps...> { using promise_type = Promise; }; @@ -81,47 +80,46 @@ }; struct DummyVoidTag {}; -DummyVoidTag no_specialization() { // expected-error {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} +DummyVoidTag no_specialization() { // expected-error {{this function cannot be a coroutine: 'std::coroutine_traits' has no member named 'promise_type'}} co_await a; } template -struct std::experimental::coroutine_traits {}; +struct std::coroutine_traits {}; -int no_promise_type() { // expected-error {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} +int no_promise_type() { // expected-error {{this function cannot be a coroutine: 'std::coroutine_traits' has no member named 'promise_type'}} co_await a; } -int no_promise_type_multiple_awaits(int) { // expected-error {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} +int no_promise_type_multiple_awaits(int) { // expected-error {{this function cannot be a coroutine: 'std::coroutine_traits' has no member named 'promise_type'}} co_await a; co_await a; } template <> -struct std::experimental::coroutine_traits { typedef int promise_type; }; -double bad_promise_type(double) { // expected-error {{this function cannot be a coroutine: 'experimental::coroutine_traits::promise_type' (aka 'int') is not a class}} +struct std::coroutine_traits { typedef int promise_type; }; +double bad_promise_type(double) { // expected-error {{this function cannot be a coroutine: 'std::coroutine_traits::promise_type' (aka 'int') is not a class}} co_await a; } template <> -struct std::experimental::coroutine_traits { +struct std::coroutine_traits { struct promise_type {}; }; double bad_promise_type_2(int) { // expected-error {{no member named 'initial_suspend'}} - co_yield 0; // expected-error {{no member named 'yield_value' in 'std::experimental::coroutine_traits::promise_type'}} + co_yield 0; // expected-error {{no member named 'yield_value' in 'std::coroutine_traits::promise_type'}} } struct promise; // expected-note {{forward declaration}} struct promise_void; struct void_tag {}; template -struct std::experimental::coroutine_traits { using promise_type = promise; }; +struct std::coroutine_traits { using promise_type = promise; }; template -struct std::experimental::coroutine_traits -{ using promise_type = promise_void; }; +struct std::coroutine_traits { using promise_type = promise_void; }; // FIXME: This diagnostic is terrible. -void undefined_promise() { // expected-error {{this function cannot be a coroutine: 'experimental::coroutine_traits::promise_type' (aka 'promise') is an incomplete type}} +void undefined_promise() { // expected-error {{this function cannot be a coroutine: 'std::coroutine_traits::promise_type' (aka 'promise') is an incomplete type}} co_await a; } @@ -148,13 +146,12 @@ void unhandled_exception(); }; -void no_coroutine_handle() { // expected-error {{std::experimental::coroutine_handle type was not found; include before defining a coroutine}} +void no_coroutine_handle() { // expected-error {{std::coroutine_handle type was not found; include before defining a coroutine}} //expected-note@-1 {{call to 'initial_suspend' implicitly required by the initial suspend point}} co_return 5; //expected-note {{function is a coroutine due to use of 'co_return' here}} } namespace std { -namespace experimental { template struct coroutine_handle { static coroutine_handle from_address(void *) noexcept; @@ -165,7 +162,7 @@ coroutine_handle(coroutine_handle) noexcept; static coroutine_handle from_address(void *) noexcept; }; -}} // namespace std::experimental +} // namespace std void yield() { co_yield 0; @@ -529,7 +526,7 @@ struct yield_fn_tag {}; template <> -struct std::experimental::coroutine_traits { +struct std::coroutine_traits { struct promise_type { // FIXME: add an await_transform overload for functions awaitable yield_value(int()); @@ -747,8 +744,7 @@ } template void ok_generic_lambda_coawait_PR41909(); // expected-note {{in instantiation of function template specialization 'ok_generic_lambda_coawait_PR41909' requested here}} -template<> struct std::experimental::coroutine_traits -{ using promise_type = promise; }; +template <> struct std::coroutine_traits { using promise_type = promise; }; int main(int, const char**) { co_await a; // expected-error {{'co_await' cannot be used in the 'main' function}} @@ -761,12 +757,11 @@ void return_void(); void unhandled_exception(); }; -template<> struct std::experimental::coroutine_handle {}; +template <> struct std::coroutine_handle {}; -template<> struct std::experimental::coroutine_traits -{ using promise_type = good_promise_2; }; +template <> struct std::coroutine_traits { using promise_type = good_promise_2; }; -float badly_specialized_coro_handle() { // expected-error {{std::experimental::coroutine_handle missing a member named 'from_address'}} +float badly_specialized_coro_handle() { // expected-error {{std::coroutine_handle missing a member named 'from_address'}} //expected-note@-1 {{call to 'initial_suspend' implicitly required by the initial suspend point}} co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}} } @@ -785,8 +780,8 @@ struct promise_on_alloc_failure_tag {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { int get_return_object() {} suspend_always initial_suspend() { return {}; } @@ -905,8 +900,8 @@ } struct mismatch_gro_type_tag1 {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void get_return_object() {} //expected-note {{member 'get_return_object' declared here}} suspend_always initial_suspend() { return {}; } @@ -922,8 +917,8 @@ } struct mismatch_gro_type_tag2 {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { void *get_return_object() {} //expected-note {{member 'get_return_object' declared here}} suspend_always initial_suspend() { return {}; } @@ -940,8 +935,8 @@ } struct mismatch_gro_type_tag3 {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { int get_return_object() {} static void get_return_object_on_allocation_failure() {} //expected-note {{member 'get_return_object_on_allocation_failure' declared here}} @@ -959,8 +954,8 @@ struct mismatch_gro_type_tag4 {}; -template<> -struct std::experimental::coroutine_traits { +template <> +struct std::coroutine_traits { struct promise_type { int get_return_object() {} static char *get_return_object_on_allocation_failure() {} //expected-note {{member 'get_return_object_on_allocation_failure' declared}} @@ -992,13 +987,13 @@ struct bad_await_suspend_return { bool await_ready(); // expected-error@+1 {{return type of 'await_suspend' is required to be 'void' or 'bool' (have 'char')}} - char await_suspend(std::experimental::coroutine_handle<>); + char await_suspend(std::coroutine_handle<>); void await_resume(); }; struct bad_await_ready_return { // expected-note@+1 {{return type of 'await_ready' is required to be contextually convertible to 'bool'}} void await_ready(); - bool await_suspend(std::experimental::coroutine_handle<>); + bool await_suspend(std::coroutine_handle<>); void await_resume(); }; struct await_ready_explicit_bool { @@ -1006,7 +1001,7 @@ explicit operator bool() const; }; BoolT await_ready(); - void await_suspend(std::experimental::coroutine_handle<>); + void await_suspend(std::coroutine_handle<>); void await_resume(); }; template @@ -1014,7 +1009,7 @@ bool await_ready(); // expected-error@+2 {{return type of 'await_suspend' is required to be 'void' or 'bool' (have 'bool &')}} // expected-error@+1 {{return type of 'await_suspend' is required to be 'void' or 'bool' (have 'bool &&')}} - SuspendTy await_suspend(std::experimental::coroutine_handle<>); + SuspendTy await_suspend(std::coroutine_handle<>); // cxx20_2b-warning@-1 {{volatile-qualified return type 'const volatile bool' is deprecated}} void await_resume(); }; @@ -1074,7 +1069,7 @@ template static constexpr bool MatchesArgs = IsSameV>; + std::coroutine_traits>; }; template @@ -1086,7 +1081,7 @@ template struct CoroMemberPromise { - using TraitsT = std::experimental::coroutine_traits; + using TraitsT = std::coroutine_traits; using TypeTestT = TypeTest; using AwaitTestT = AwaitReturnsType; @@ -1103,7 +1098,7 @@ } // namespace CoroHandleMemberFunctionTest template -struct ::std::experimental::coroutine_traits { +struct ::std::coroutine_traits { using promise_type = CoroHandleMemberFunctionTest::CoroMemberPromise; }; @@ -1189,16 +1184,16 @@ } BadCoroMemberTag test_diagnostics() { - // expected-error@-1 {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + // expected-error@-1 {{this function cannot be a coroutine: 'std::coroutine_traits' has no member named 'promise_type'}} co_return; } BadCoroMemberTag test_diagnostics(int) const && { - // expected-error@-1 {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + // expected-error@-1 {{this function cannot be a coroutine: 'std::coroutine_traits' has no member named 'promise_type'}} co_return; } static BadCoroMemberTag test_static_diagnostics(long *) { - // expected-error@-1 {{this function cannot be a coroutine: 'std::experimental::coroutine_traits' has no member named 'promise_type'}} + // expected-error@-1 {{this function cannot be a coroutine: 'std::coroutine_traits' has no member named 'promise_type'}} co_return; } }; @@ -1310,7 +1305,7 @@ coro bad_coroutine_calls_deleted_promise_constructor() { - // expected-error@-1 {{call to deleted constructor of 'std::experimental::coroutine_traits>::promise_type' (aka 'CoroHandleMemberFunctionTest::bad_promise_deleted_constructor')}} + // expected-error@-1 {{call to deleted constructor of 'std::coroutine_traits>::promise_type' (aka 'CoroHandleMemberFunctionTest::bad_promise_deleted_constructor')}} co_return; } @@ -1377,7 +1372,7 @@ coro bad_coroutine_calls_with_no_matching_constructor(int, int) { - // expected-error@-1 {{call to deleted constructor of 'std::experimental::coroutine_traits, int, int>::promise_type' (aka 'CoroHandleMemberFunctionTest::bad_promise_no_matching_constructor')}} + // expected-error@-1 {{call to deleted constructor of 'std::coroutine_traits, int, int>::promise_type' (aka 'CoroHandleMemberFunctionTest::bad_promise_no_matching_constructor')}} co_return; } @@ -1393,7 +1388,7 @@ class awaitable_no_unused_warn { public: - using handle_type = std::experimental::coroutine_handle<>; + using handle_type = std::coroutine_handle<>; constexpr bool await_ready() noexcept { return false; } void await_suspend(handle_type) noexcept {} int await_resume() noexcept { return 1; } @@ -1402,7 +1397,7 @@ class awaitable_unused_warn { public: - using handle_type = std::experimental::coroutine_handle<>; + using handle_type = std::coroutine_handle<>; constexpr bool await_ready() noexcept { return false; } void await_suspend(handle_type) noexcept {} [[nodiscard]] int await_resume() noexcept { return 1; } @@ -1432,7 +1427,7 @@ } struct missing_await_ready { - void await_suspend(std::experimental::coroutine_handle<>); + void await_suspend(std::coroutine_handle<>); void await_resume(); }; struct missing_await_suspend { @@ -1441,7 +1436,7 @@ }; struct missing_await_resume { bool await_ready(); - void await_suspend(std::experimental::coroutine_handle<>); + void await_suspend(std::coroutine_handle<>); }; void test_missing_awaitable_members() { Index: clang/unittests/ASTMatchers/ASTMatchersTraversalTest.cpp =================================================================== --- clang/unittests/ASTMatchers/ASTMatchersTraversalTest.cpp +++ clang/unittests/ASTMatchers/ASTMatchersTraversalTest.cpp @@ -623,7 +623,6 @@ FileContentMappings M; M.push_back(std::make_pair("/coro_header", R"cpp( namespace std { -namespace experimental { template struct void_t_imp { @@ -642,7 +641,7 @@ template struct coroutine_traits : public traits_sfinae_base {}; -}} // namespace std::experimental +} // namespace std struct awaitable { bool await_ready() noexcept; template @@ -658,14 +657,13 @@ void unhandled_exception(); }; template -struct std::experimental::coroutine_traits { using promise_type = promise; }; +struct std::coroutine_traits { using promise_type = promise; }; namespace std { -namespace experimental { template struct coroutine_handle { static coroutine_handle from_address(void *) noexcept; }; -}} // namespace std::experimental +} // namespace std )cpp")); StringRef CoReturnCode = R"cpp( #include