cjdb created this revision.
Herald added a project: All.
cjdb requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
- `__is_copy_constructible`
- `__is_nothrow_copy_constructible`
- `__is_trivially_copy_constructible`
This is information that the compiler already has, and should be exposed
so that the library doesn't need to reimplement the exact same
functionality.
Unlike their default-constructible cousins, the copy-construcitble
traits can't be implemented using `__is_constructible`, etc., because we
can't form references to `void`, which are a fundamental part of copy
constructors.
This was originally a part of D116280 <https://reviews.llvm.org/D116280>.
Depends on D135177 <https://reviews.llvm.org/D135177>.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D135238
Files:
clang/include/clang/Basic/TokenKinds.def
clang/lib/Parse/ParseDeclCXX.cpp
clang/lib/Parse/ParseExpr.cpp
clang/lib/Sema/SemaExprCXX.cpp
clang/test/SemaCXX/deprecated-builtins.cpp
clang/test/SemaCXX/type-traits.cpp
Index: clang/test/SemaCXX/type-traits.cpp
===================================================================
--- clang/test/SemaCXX/type-traits.cpp
+++ clang/test/SemaCXX/type-traits.cpp
@@ -1637,8 +1637,8 @@
typedef const IntAr ConstIntAr;
typedef ConstIntAr ConstIntArAr[4];
-struct HasCopy {
- HasCopy(HasCopy& cp);
+struct HasMutableCopyCtor {
+ HasMutableCopyCtor(HasMutableCopyCtor &cp);
};
struct HasMove {
@@ -1674,7 +1674,7 @@
{ int arr[F(__has_trivial_constructor(AnIncompleteType[]))]; } // expected-error {{incomplete type}}
{ int arr[F(__has_trivial_constructor(HasCons))]; }
{ int arr[F(__has_trivial_constructor(HasRef))]; }
- { int arr[F(__has_trivial_constructor(HasCopy))]; }
+ { int arr[F(__has_trivial_constructor(HasMutableCopyCtor))]; }
{ int arr[F(__has_trivial_constructor(IntRef))]; }
{ int arr[F(__has_trivial_constructor(VirtAr))]; }
{ int arr[F(__has_trivial_constructor(void))]; }
@@ -1737,7 +1737,7 @@
{ int arr[T(__has_trivial_copy(ACompleteType[]))]; }
{ int arr[F(__has_trivial_copy(AnIncompleteType[]))]; } // expected-error {{incomplete type}}
- { int arr[F(__has_trivial_copy(HasCopy))]; }
+ { int arr[F(__has_trivial_copy(HasMutableCopyCtor))]; }
{ int arr[F(__has_trivial_copy(HasTemplateCons))]; }
{ int arr[F(__has_trivial_copy(VirtAr))]; }
{ int arr[F(__has_trivial_copy(void))]; }
@@ -1757,7 +1757,7 @@
{ int arr[T(__has_trivial_assign(HasPriv))]; }
{ int arr[T(__has_trivial_assign(HasCons))]; }
{ int arr[T(__has_trivial_assign(HasRef))]; }
- { int arr[T(__has_trivial_assign(HasCopy))]; }
+ { int arr[T(__has_trivial_assign(HasMutableCopyCtor))]; }
{ int arr[T(__has_trivial_assign(HasMove))]; }
{ int arr[T(__has_trivial_assign(HasMoveAssign))]; }
{ int arr[T(__has_trivial_assign(AllDefaulted))]; }
@@ -1791,7 +1791,7 @@
{ int arr[T(__has_trivial_destructor(HasPriv))]; }
{ int arr[T(__has_trivial_destructor(HasCons))]; }
{ int arr[T(__has_trivial_destructor(HasRef))]; }
- { int arr[T(__has_trivial_destructor(HasCopy))]; }
+ { int arr[T(__has_trivial_destructor(HasMutableCopyCtor))]; }
{ int arr[T(__has_trivial_destructor(HasMove))]; }
{ int arr[T(__has_trivial_destructor(IntRef))]; }
{ int arr[T(__has_trivial_destructor(HasCopyAssign))]; }
@@ -1848,7 +1848,7 @@
{ int arr[T(__has_nothrow_assign(HasPriv))]; }
{ int arr[T(__has_nothrow_assign(HasCons))]; }
{ int arr[T(__has_nothrow_assign(HasRef))]; }
- { int arr[T(__has_nothrow_assign(HasCopy))]; }
+ { int arr[T(__has_nothrow_assign(HasMutableCopyCtor))]; }
{ int arr[T(__has_nothrow_assign(HasMove))]; }
{ int arr[T(__has_nothrow_assign(HasMoveAssign))]; }
{ int arr[T(__has_nothrow_assign(HasNoThrowCopyAssign))]; }
@@ -1957,7 +1957,7 @@
{ int arr[T(__has_nothrow_copy(ACompleteType[]))]; }
{ int arr[F(__has_nothrow_copy(AnIncompleteType[]))]; } // expected-error {{incomplete type}}
- { int arr[F(__has_nothrow_copy(HasCopy))]; }
+ { int arr[F(__has_nothrow_copy(HasMutableCopyCtor))]; }
{ int arr[F(__has_nothrow_copy(HasMultipleCopy))]; }
{ int arr[F(__has_nothrow_copy(VirtAr))]; }
{ int arr[F(__has_nothrow_copy(void))]; }
@@ -1987,7 +1987,7 @@
{ int arr[F(__has_nothrow_constructor(AnIncompleteType[]))]; } // expected-error {{incomplete type}}
{ int arr[F(__has_nothrow_constructor(HasCons))]; }
{ int arr[F(__has_nothrow_constructor(HasRef))]; }
- { int arr[F(__has_nothrow_constructor(HasCopy))]; }
+ { int arr[F(__has_nothrow_constructor(HasMutableCopyCtor))]; }
{ int arr[F(__has_nothrow_constructor(HasMove))]; }
{ int arr[F(__has_nothrow_constructor(HasNoThrowConstructorWithArgs))]; }
{ int arr[F(__has_nothrow_constructor(IntRef))]; }
@@ -2014,7 +2014,7 @@
{ int arr[F(__has_virtual_destructor(HasPriv))]; }
{ int arr[F(__has_virtual_destructor(HasCons))]; }
{ int arr[F(__has_virtual_destructor(HasRef))]; }
- { int arr[F(__has_virtual_destructor(HasCopy))]; }
+ { int arr[F(__has_virtual_destructor(HasMutableCopyCtor))]; }
{ int arr[F(__has_virtual_destructor(HasMove))]; }
{ int arr[F(__has_virtual_destructor(HasCopyAssign))]; }
{ int arr[F(__has_virtual_destructor(HasMoveAssign))]; }
@@ -2481,6 +2481,390 @@
{ int arr[F(__is_nothrow_constructible(const volatile void))]; }
}
+struct VolatileCopyCtor {
+ VolatileCopyCtor(volatile VolatileCopyCtor &);
+};
+
+struct CVCopyCtor {
+ CVCopyCtor(const volatile CVCopyCtor &);
+};
+
+struct CopyCtorDeleted {
+ CopyCtorDeleted(const CopyCtorDeleted &) = delete;
+};
+
+struct BaseDeletedCopyCtor : CopyCtorDeleted {};
+
+struct MemberDeletedCopyCtor {
+ CopyCtorDeleted x;
+};
+
+struct NothrowCopyConstructible {
+ NothrowCopyConstructible(NothrowCopyConstructible const&) noexcept;
+};
+
+void copy_constructible_checks() {
+ // Builtin types
+
+ static_assert(__is_copy_constructible(int), "");
+ static_assert(__is_nothrow_copy_constructible(int), "");
+ static_assert(__is_trivially_copy_constructible(int), "");
+
+ static_assert(__is_copy_constructible(const int), "");
+ static_assert(__is_nothrow_copy_constructible(const int), "");
+ static_assert(__is_trivially_copy_constructible(const int), "");
+
+ static_assert(__is_copy_constructible(volatile int), "");
+ static_assert(__is_nothrow_copy_constructible(volatile int), "");
+ static_assert(__is_trivially_copy_constructible(volatile int), "");
+
+ static_assert(__is_copy_constructible(const volatile int), "");
+ static_assert(__is_nothrow_copy_constructible(const volatile int), "");
+ static_assert(__is_trivially_copy_constructible(const volatile int), "");
+
+ static_assert(__is_copy_constructible(int&), "");
+ static_assert(__is_nothrow_copy_constructible(int&), "");
+ static_assert(__is_trivially_copy_constructible(int&), "");
+
+ static_assert(__is_copy_constructible(const int&), "");
+ static_assert(__is_nothrow_copy_constructible(const int&), "");
+ static_assert(__is_trivially_copy_constructible(const int&), "");
+
+ static_assert(__is_copy_constructible(volatile int&), "");
+ static_assert(__is_nothrow_copy_constructible(volatile int&), "");
+ static_assert(__is_trivially_copy_constructible(volatile int&), "");
+
+ static_assert(__is_copy_constructible(const volatile int&), "");
+ static_assert(__is_nothrow_copy_constructible(const volatile int&), "");
+ static_assert(__is_trivially_copy_constructible(const volatile int&), "");
+
+ static_assert(!__is_copy_constructible(int&&), "");
+ static_assert(!__is_nothrow_copy_constructible(int&&), "");
+ static_assert(!__is_trivially_copy_constructible(int&&), "");
+
+ static_assert(!__is_copy_constructible(const int&&), "");
+ static_assert(!__is_nothrow_copy_constructible(const int&&), "");
+ static_assert(!__is_trivially_copy_constructible(const int&&), "");
+
+ static_assert(!__is_copy_constructible(volatile int&&), "");
+ static_assert(!__is_nothrow_copy_constructible(volatile int&&), "");
+ static_assert(!__is_trivially_copy_constructible(volatile int&&), "");
+
+ static_assert(!__is_copy_constructible(const volatile int&&), "");
+ static_assert(!__is_nothrow_copy_constructible(const volatile int&&), "");
+ static_assert(!__is_trivially_copy_constructible(const volatile int&&), "");
+
+ static_assert(__is_copy_constructible(int*), "");
+ static_assert(__is_nothrow_copy_constructible(int*), "");
+ static_assert(__is_trivially_copy_constructible(int*), "");
+
+ static_assert(__is_copy_constructible(int* const), "");
+ static_assert(__is_nothrow_copy_constructible(int* const), "");
+ static_assert(__is_trivially_copy_constructible(int* const), "");
+
+ static_assert(__is_copy_constructible(int* volatile), "");
+ static_assert(__is_nothrow_copy_constructible(int* volatile), "");
+ static_assert(__is_trivially_copy_constructible(int* volatile), "");
+
+ static_assert(__is_copy_constructible(int* const volatile), "");
+ static_assert(__is_nothrow_copy_constructible(int* const volatile), "");
+ static_assert(__is_trivially_copy_constructible(int* const volatile), "");
+
+ static_assert(!__is_copy_constructible(int[2]), "");
+ static_assert(!__is_nothrow_copy_constructible(int[2]), "");
+ static_assert(!__is_trivially_copy_constructible(int[2]), "");
+
+ static_assert(!__is_copy_constructible(int[]), "");
+ static_assert(!__is_nothrow_copy_constructible(int[]), "");
+ static_assert(!__is_trivially_copy_constructible(int[]), "");
+
+ static_assert(__is_copy_constructible(decltype(nullptr)), "");
+ static_assert(__is_nothrow_copy_constructible(decltype(nullptr)), "");
+ static_assert(__is_trivially_copy_constructible(decltype(nullptr)), "");
+
+ static_assert(__is_copy_constructible(void(*)()), "");
+ static_assert(__is_nothrow_copy_constructible(void(*)()), "");
+ static_assert(__is_trivially_copy_constructible(void(*)()), "");
+
+ static_assert(__is_copy_constructible(void(&)()), "");
+ static_assert(__is_nothrow_copy_constructible(void(&)()), "");
+ static_assert(__is_trivially_copy_constructible(void(&)()), "");
+
+ static_assert(__is_copy_constructible(int Empty::*), "");
+ static_assert(__is_nothrow_copy_constructible(int Empty::*), "");
+ static_assert(__is_trivially_copy_constructible(int Empty::*), "");
+
+ static_assert(__is_copy_constructible(int (Empty::*)()), "");
+ static_assert(__is_nothrow_copy_constructible(int (Empty::*)()), "");
+ static_assert(__is_trivially_copy_constructible(int (Empty::*)()), "");
+
+ // User-defined types
+ static_assert(__is_copy_constructible(AllDefaulted), "");
+ static_assert(__is_nothrow_copy_constructible(AllDefaulted), "");
+ static_assert(__is_trivially_copy_constructible(AllDefaulted), "");
+
+ static_assert(__is_copy_constructible(const AllDefaulted), "");
+ static_assert(__is_nothrow_copy_constructible(const AllDefaulted), "");
+ static_assert(__is_trivially_copy_constructible(const AllDefaulted), "");
+
+ static_assert(!__is_copy_constructible(volatile AllDefaulted), "");
+ static_assert(!__is_nothrow_copy_constructible(volatile AllDefaulted), "");
+ static_assert(!__is_trivially_copy_constructible(volatile AllDefaulted), "");
+
+ static_assert(!__is_copy_constructible(const volatile AllDefaulted), "");
+ static_assert(!__is_nothrow_copy_constructible(const volatile AllDefaulted), "");
+ static_assert(!__is_trivially_copy_constructible(const volatile AllDefaulted), "");
+
+ static_assert(__is_copy_constructible(CEmptyStruct), "");
+ static_assert(__is_nothrow_copy_constructible(CEmptyStruct), "");
+ static_assert(__is_trivially_copy_constructible(CEmptyStruct), "");
+
+ static_assert(__is_copy_constructible(CppEmptyStruct), "");
+ static_assert(__is_nothrow_copy_constructible(CppEmptyStruct), "");
+ static_assert(__is_trivially_copy_constructible(CppEmptyStruct), "");
+
+ static_assert(__is_copy_constructible(CppStructNonStandardBy2ndVirtBase), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructNonStandardBy2ndVirtBase), "");
+ static_assert(__is_trivially_copy_constructible(CppStructNonStandardBy2ndVirtBase), "");
+
+ static_assert(__is_copy_constructible(CppStructNonStandardByBase), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructNonStandardByBase), "");
+ static_assert(__is_trivially_copy_constructible(CppStructNonStandardByBase), "");
+
+ static_assert(__is_copy_constructible(CppStructNonStandardByMemb), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructNonStandardByMemb), "");
+ static_assert(!__is_trivially_copy_constructible(CppStructNonStandardByMemb), "");
+
+ static_assert(__is_copy_constructible(CppStructNonStandardByProt), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructNonStandardByProt), "");
+ static_assert(__is_trivially_copy_constructible(CppStructNonStandardByProt), "");
+
+ static_assert(__is_copy_constructible(CppStructNonStandardBySameBase), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructNonStandardBySameBase), "");
+ static_assert(__is_trivially_copy_constructible(CppStructNonStandardBySameBase), "");
+
+ static_assert(__is_copy_constructible(CppStructNonStandardByVirt), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructNonStandardByVirt), "");
+ static_assert(!__is_trivially_copy_constructible(CppStructNonStandardByVirt), "");
+
+ static_assert(__is_copy_constructible(CppStructNonStandardByVirtBase), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructNonStandardByVirtBase), "");
+ static_assert(!__is_trivially_copy_constructible(CppStructNonStandardByVirtBase), "");
+
+ static_assert(__is_copy_constructible(CppStructStandard), "");
+ static_assert(__is_nothrow_copy_constructible(CppStructStandard), "");
+ static_assert(__is_trivially_copy_constructible(CppStructStandard), "");
+
+ static_assert(__is_copy_constructible(CStruct), "");
+ static_assert(__is_nothrow_copy_constructible(CStruct), "");
+ static_assert(__is_trivially_copy_constructible(CStruct), "");
+
+ static_assert(__is_copy_constructible(CVCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(CVCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(CVCopyCtor), "");
+
+ static_assert(__is_copy_constructible(const CVCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(const CVCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(const CVCopyCtor), "");
+
+ static_assert(__is_copy_constructible(volatile CVCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(volatile CVCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(volatile CVCopyCtor), "");
+
+ static_assert(__is_copy_constructible(const volatile CVCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(const volatile CVCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(const volatile CVCopyCtor), "");
+
+ static_assert(__is_copy_constructible(Derives), "");
+ static_assert(__is_nothrow_copy_constructible(Derives), "");
+ static_assert(__is_trivially_copy_constructible(Derives), "");
+
+ static_assert(__is_copy_constructible(DerivesHasRef), "");
+ static_assert(__is_nothrow_copy_constructible(DerivesHasRef), "");
+ static_assert(__is_trivially_copy_constructible(DerivesHasRef), "");
+
+ static_assert(__is_copy_constructible(Empty), "");
+ static_assert(__is_nothrow_copy_constructible(Empty), "");
+ static_assert(__is_trivially_copy_constructible(Empty), "");
+
+ static_assert(__is_copy_constructible(EmptyUnion), "");
+ static_assert(__is_nothrow_copy_constructible(EmptyUnion), "");
+ static_assert(__is_trivially_copy_constructible(EmptyUnion), "");
+
+ static_assert(__is_copy_constructible(Enum), "");
+ static_assert(__is_nothrow_copy_constructible(Enum), "");
+ static_assert(__is_trivially_copy_constructible(Enum), "");
+
+ static_assert(__is_copy_constructible(const Enum), "");
+ static_assert(__is_nothrow_copy_constructible(const Enum), "");
+ static_assert(__is_trivially_copy_constructible(const Enum), "");
+
+ static_assert(__is_copy_constructible(volatile Enum), "");
+ static_assert(__is_nothrow_copy_constructible(volatile Enum), "");
+ static_assert(__is_trivially_copy_constructible(volatile Enum), "");
+
+ static_assert(__is_copy_constructible(const volatile Enum), "");
+ static_assert(__is_nothrow_copy_constructible(const volatile Enum), "");
+ static_assert(__is_trivially_copy_constructible(const volatile Enum), "");
+
+ static_assert(__is_copy_constructible(EnumClass), "");
+ static_assert(__is_nothrow_copy_constructible(EnumClass), "");
+ static_assert(__is_trivially_copy_constructible(EnumClass), "");
+
+ static_assert(__is_copy_constructible(const EnumClass), "");
+ static_assert(__is_nothrow_copy_constructible(const EnumClass), "");
+ static_assert(__is_trivially_copy_constructible(const EnumClass), "");
+
+ static_assert(__is_copy_constructible(volatile EnumClass), "");
+ static_assert(__is_nothrow_copy_constructible(volatile EnumClass), "");
+ static_assert(__is_trivially_copy_constructible(volatile EnumClass), "");
+
+ static_assert(__is_copy_constructible(const volatile EnumClass), "");
+ static_assert(__is_nothrow_copy_constructible(const volatile EnumClass), "");
+ static_assert(__is_trivially_copy_constructible(const volatile EnumClass), "");
+
+ static_assert(__is_copy_constructible(ExtDefaulted), "");
+ static_assert(!__is_nothrow_copy_constructible(ExtDefaulted), "");
+ static_assert(!__is_trivially_copy_constructible(ExtDefaulted), "");
+
+ static_assert(__is_copy_constructible(ExtDefaulted), "");
+ static_assert(!__is_nothrow_copy_constructible(ExtDefaulted), "");
+ static_assert(!__is_trivially_copy_constructible(ExtDefaulted), "");
+
+ static_assert(__is_copy_constructible(HasCons), "");
+ static_assert(__is_nothrow_copy_constructible(HasCons), "");
+ static_assert(__is_trivially_copy_constructible(HasCons), "");
+
+ static_assert(__is_copy_constructible(HasCopyAssign), "");
+ static_assert(__is_nothrow_copy_constructible(HasCopyAssign), "");
+ static_assert(__is_trivially_copy_constructible(HasCopyAssign), "");
+
+ static_assert(__is_copy_constructible(HasDest), "");
+ static_assert(__is_nothrow_copy_constructible(HasDest), "");
+ static_assert(!__is_trivially_copy_constructible(HasDest), "");
+
+ static_assert(__is_copy_constructible(HasMultipleCopy), "");
+ static_assert(__is_nothrow_copy_constructible(HasMultipleCopy), "");
+ static_assert(!__is_trivially_copy_constructible(HasMultipleCopy), "");
+
+ static_assert(__is_copy_constructible(HasPriv), "");
+ static_assert(__is_nothrow_copy_constructible(HasPriv), "");
+ static_assert(__is_trivially_copy_constructible(HasPriv), "");
+
+ static_assert(__is_copy_constructible(HasRef), "");
+ static_assert(__is_nothrow_copy_constructible(HasRef), "");
+ static_assert(__is_trivially_copy_constructible(HasRef), "");
+
+ static_assert(__is_copy_constructible(HasTemplateCons), "");
+ static_assert(__is_nothrow_copy_constructible(HasTemplateCons), "");
+ static_assert(!__is_trivially_copy_constructible(HasTemplateCons), "");
+
+ static_assert(__is_copy_constructible(const HasTemplateCons), "");
+ static_assert(__is_nothrow_copy_constructible(const HasTemplateCons), "");
+ static_assert(!__is_trivially_copy_constructible(const HasTemplateCons), "");
+
+ static_assert(__is_copy_constructible(volatile HasTemplateCons), "");
+ static_assert(!__is_nothrow_copy_constructible(volatile HasTemplateCons), "");
+ static_assert(!__is_trivially_copy_constructible(volatile HasTemplateCons), "");
+
+ static_assert(__is_copy_constructible(const volatile HasTemplateCons), "");
+ static_assert(!__is_nothrow_copy_constructible(const volatile HasTemplateCons), "");
+ static_assert(!__is_trivially_copy_constructible(const volatile HasTemplateCons), "");
+
+ static_assert(__is_copy_constructible(NoDefaultMoveAssignDueToDtor), "");
+ static_assert(__is_nothrow_copy_constructible(NoDefaultMoveAssignDueToDtor), "");
+ static_assert(!__is_trivially_copy_constructible(NoDefaultMoveAssignDueToDtor), "");
+
+ static_assert(__is_copy_constructible(NoDefaultMoveAssignDueToUDCopyAssign), "");
+ static_assert(__is_nothrow_copy_constructible(NoDefaultMoveAssignDueToUDCopyAssign), "");
+ static_assert(__is_trivially_copy_constructible(NoDefaultMoveAssignDueToUDCopyAssign), "");
+
+ static_assert(__is_copy_constructible(NoDefaultMoveAssignDueToUDCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(NoDefaultMoveAssignDueToUDCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(NoDefaultMoveAssignDueToUDCopyCtor), "");
+
+ static_assert(__is_copy_constructible(NonTCStruct), "");
+ static_assert(!__is_nothrow_copy_constructible(NonTCStruct), "");
+ static_assert(!__is_trivially_copy_constructible(NonTCStruct), "");
+
+ static_assert(__is_copy_constructible(NonTrivialStruct), "");
+ static_assert(__is_nothrow_copy_constructible(NonTrivialStruct), "");
+ static_assert(__is_trivially_copy_constructible(NonTrivialStruct), "");
+
+ static_assert(__is_copy_constructible(SuperNonTrivialStruct), "");
+ static_assert(__is_nothrow_copy_constructible(SuperNonTrivialStruct), "");
+ static_assert(!__is_trivially_copy_constructible(SuperNonTrivialStruct), "");
+
+ static_assert(__is_copy_constructible(TrivialStruct), "");
+ static_assert(__is_nothrow_copy_constructible(TrivialStruct), "");
+ static_assert(__is_trivially_copy_constructible(TrivialStruct), "");
+
+ static_assert(__is_copy_constructible(Union), "");
+ static_assert(__is_nothrow_copy_constructible(Union), "");
+ static_assert(__is_trivially_copy_constructible(Union), "");
+
+ static_assert(__is_copy_constructible(NothrowCopyConstructible), "");
+ static_assert(__is_nothrow_copy_constructible(NothrowCopyConstructible), "");
+ static_assert(!__is_trivially_copy_constructible(NothrowCopyConstructible), "");
+
+ static_assert(!__is_copy_constructible(AllDeleted), "");
+ static_assert(!__is_nothrow_copy_constructible(AllDeleted), "");
+ static_assert(!__is_trivially_copy_constructible(AllDeleted), "");
+
+ static_assert(!__is_copy_constructible(AllPrivate), "");
+ static_assert(!__is_nothrow_copy_constructible(AllPrivate), "");
+ static_assert(!__is_trivially_copy_constructible(AllPrivate), "");
+
+ static_assert(!__is_copy_constructible(AnIncompleteType[]), "");
+ static_assert(!__is_nothrow_copy_constructible(AnIncompleteType[]), "");
+ static_assert(!__is_trivially_copy_constructible(AnIncompleteType[]), "");
+
+ static_assert(!__is_copy_constructible(AnIncompleteType), ""); // expected-error{{incomplete type}}
+ static_assert(!__is_nothrow_copy_constructible(AnIncompleteType), ""); // expected-error{{incomplete type}}
+ static_assert(!__is_trivially_copy_constructible(AnIncompleteType), ""); // expected-error{{incomplete type}}
+
+ static_assert(!__is_copy_constructible(BaseDeletedCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(BaseDeletedCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(BaseDeletedCopyCtor), "");
+
+ static_assert(!__is_copy_constructible(CopyCtorDeleted), "");
+ static_assert(!__is_nothrow_copy_constructible(CopyCtorDeleted), "");
+ static_assert(!__is_trivially_copy_constructible(CopyCtorDeleted), "");
+
+ static_assert(!__is_copy_constructible(HasMutableCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(HasMutableCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(HasMutableCopyCtor), "");
+
+ static_assert(!__is_copy_constructible(HasMove), "");
+ static_assert(!__is_nothrow_copy_constructible(HasMove), "");
+ static_assert(!__is_trivially_copy_constructible(HasMove), "");
+
+ static_assert(!__is_copy_constructible(HasMoveAssign), "");
+ static_assert(!__is_nothrow_copy_constructible(HasMoveAssign), "");
+ static_assert(!__is_trivially_copy_constructible(HasMoveAssign), "");
+
+ static_assert(!__is_copy_constructible(MemberDeletedCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(MemberDeletedCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(MemberDeletedCopyCtor), "");
+
+ static_assert(!__is_copy_constructible(VirtAr), "");
+ static_assert(!__is_nothrow_copy_constructible(VirtAr), "");
+ static_assert(!__is_trivially_copy_constructible(VirtAr), "");
+
+ static_assert(!__is_copy_constructible(VolatileCopyCtor), "");
+ static_assert(!__is_nothrow_copy_constructible(VolatileCopyCtor), "");
+ static_assert(!__is_trivially_copy_constructible(VolatileCopyCtor), "");
+
+ // Non-referencable types
+ static_assert(!__is_copy_constructible(void), "");
+ static_assert(!__is_nothrow_copy_constructible(void), "");
+ static_assert(!__is_trivially_copy_constructible(void), "");
+
+ static_assert(!__is_copy_constructible(void()), "");
+ static_assert(!__is_nothrow_copy_constructible(void()), "");
+ static_assert(!__is_trivially_copy_constructible(void()), "");
+}
+
// Instantiation of __is_trivially_constructible
template<typename T, typename ...Args>
struct is_trivially_constructible {
Index: clang/test/SemaCXX/deprecated-builtins.cpp
===================================================================
--- clang/test/SemaCXX/deprecated-builtins.cpp
+++ clang/test/SemaCXX/deprecated-builtins.cpp
@@ -7,11 +7,11 @@
a = __has_nothrow_assign(A); // expected-warning-re {{__has_nothrow_assign {{.*}} use __is_nothrow_assignable}}
a = __has_nothrow_move_assign(A); // expected-warning-re {{__has_nothrow_move_assign {{.*}} use __is_nothrow_assignable}}
- a = __has_nothrow_copy(A); // expected-warning-re {{__has_nothrow_copy {{.*}} use __is_nothrow_constructible}}
+ a = __has_nothrow_copy(A); // expected-warning-re {{__has_nothrow_copy {{.*}} use __is_nothrow_copy_constructible}}
a = __has_nothrow_constructor(A); // expected-warning-re {{__has_nothrow_constructor {{.*}} use __is_nothrow_constructible}}
a = __has_trivial_assign(A); // expected-warning-re {{__has_trivial_assign {{.*}} use __is_trivially_assignable}}
a = __has_trivial_move_assign(A); // expected-warning-re {{__has_trivial_move_assign {{.*}} use __is_trivially_assignable}}
- a = __has_trivial_copy(A); // expected-warning-re {{__has_trivial_copy {{.*}} use __is_trivially_copyable}}
+ a = __has_trivial_copy(A); // expected-warning-re {{__has_trivial_copy {{.*}} use __is_trivially_copy_constructible}}
a = __has_trivial_constructor(A); // expected-warning-re {{__has_trivial_constructor {{.*}} use __is_trivially_constructible}}
a = __has_trivial_move_constructor(A); // expected-warning-re {{__has_trivial_move_constructor {{.*}} use __is_trivially_constructible}}
a = __has_trivial_destructor(A); // expected-warning-re {{__has_trivial_destructor {{.*}} use __is_trivially_destructible}}
Index: clang/lib/Sema/SemaExprCXX.cpp
===================================================================
--- clang/lib/Sema/SemaExprCXX.cpp
+++ clang/lib/Sema/SemaExprCXX.cpp
@@ -4848,6 +4848,9 @@
case UTT_IsNothrowDestructible:
case UTT_IsTriviallyDestructible:
case UTT_HasUniqueObjectRepresentations:
+ case UTT_IsCopyConstructible:
+ case UTT_IsTriviallyCopyConstructible:
+ case UTT_IsNothrowCopyConstructible:
if (ArgTy->isIncompleteArrayType() || ArgTy->isVoidType())
return true;
@@ -4891,6 +4894,12 @@
return false;
}
+static bool evaluateTypeTrait(Sema &S, TypeTrait Kind, SourceLocation KWLoc,
+ ArrayRef<TypeSourceInfo *> Args,
+ SourceLocation RParenLoc);
+static bool EvaluateBinaryTypeTrait(Sema &Self, TypeTrait BTT, QualType LhsT,
+ QualType RhsT, SourceLocation KeyLoc);
+
static bool EvaluateUnaryTypeTrait(Sema &Self, TypeTrait UTT,
SourceLocation KeyLoc, QualType T) {
assert(!T->isDependentType() && "Cannot evaluate traits of dependent type");
@@ -5305,6 +5314,27 @@
return C.hasUniqueObjectRepresentations(T);
case UTT_IsTriviallyRelocatable:
return T.isTriviallyRelocatableType(C);
+ case UTT_IsCopyConstructible:
+ case UTT_IsTriviallyCopyConstructible:
+ case UTT_IsNothrowCopyConstructible: {
+ if (T->isIncompleteArrayType())
+ return false;
+ if (!T.isReferenceable())
+ return false;
+
+ QualType AssigneeType = T;
+ AssigneeType.addConst();
+ AssigneeType = Self.BuiltinAddReference(
+ AssigneeType, UnaryTransformType::AddLvalueReference, KeyLoc);
+ llvm::SmallVector<TypeSourceInfo *, 2> Parameters = {
+ C.CreateTypeSourceInfo(T), C.CreateTypeSourceInfo(AssigneeType)};
+ return evaluateTypeTrait(Self,
+ UTT == UTT_IsCopyConstructible ? TT_IsConstructible
+ : UTT == UTT_IsTriviallyCopyConstructible
+ ? TT_IsTriviallyConstructible
+ : TT_IsNothrowConstructible,
+ KeyLoc, Parameters, {});
+ }
case UTT_IsReferenceable:
return T.isReferenceable();
}
@@ -5443,6 +5473,8 @@
Replacement = BTT_IsNothrowAssignable;
break;
case UTT_HasNothrowCopy:
+ Replacement = UTT_IsNothrowCopyConstructible;
+ break;
case UTT_HasNothrowConstructor:
Replacement = TT_IsNothrowConstructible;
break;
@@ -5451,7 +5483,7 @@
Replacement = BTT_IsTriviallyAssignable;
break;
case UTT_HasTrivialCopy:
- Replacement = UTT_IsTriviallyCopyable;
+ Replacement = UTT_IsTriviallyCopyConstructible;
break;
case UTT_HasTrivialDefaultConstructor:
case UTT_HasTrivialMoveConstructor:
Index: clang/lib/Parse/ParseExpr.cpp
===================================================================
--- clang/lib/Parse/ParseExpr.cpp
+++ clang/lib/Parse/ParseExpr.cpp
@@ -1076,6 +1076,7 @@
REVERTIBLE_TYPE_TRAIT(__is_constructible);
REVERTIBLE_TYPE_TRAIT(__is_convertible_to);
REVERTIBLE_TYPE_TRAIT(__is_convertible);
+ REVERTIBLE_TYPE_TRAIT(__is_copy_constructible);
REVERTIBLE_TYPE_TRAIT(__is_destructible);
REVERTIBLE_TYPE_TRAIT(__is_empty);
REVERTIBLE_TYPE_TRAIT(__is_enum);
@@ -1093,6 +1094,7 @@
REVERTIBLE_TYPE_TRAIT(__is_member_pointer);
REVERTIBLE_TYPE_TRAIT(__is_nothrow_assignable);
REVERTIBLE_TYPE_TRAIT(__is_nothrow_constructible);
+ REVERTIBLE_TYPE_TRAIT(__is_nothrow_copy_constructible);
REVERTIBLE_TYPE_TRAIT(__is_nothrow_destructible);
REVERTIBLE_TYPE_TRAIT(__is_nullptr);
REVERTIBLE_TYPE_TRAIT(__is_object);
@@ -1112,6 +1114,7 @@
REVERTIBLE_TYPE_TRAIT(__is_trivial);
REVERTIBLE_TYPE_TRAIT(__is_trivially_assignable);
REVERTIBLE_TYPE_TRAIT(__is_trivially_constructible);
+ REVERTIBLE_TYPE_TRAIT(__is_trivially_copy_constructible);
REVERTIBLE_TYPE_TRAIT(__is_trivially_copyable);
REVERTIBLE_TYPE_TRAIT(__is_unbounded_array);
REVERTIBLE_TYPE_TRAIT(__is_union);
Index: clang/lib/Parse/ParseDeclCXX.cpp
===================================================================
--- clang/lib/Parse/ParseDeclCXX.cpp
+++ clang/lib/Parse/ParseDeclCXX.cpp
@@ -1585,6 +1585,7 @@
tok::kw___is_compound,
tok::kw___is_const,
tok::kw___is_constructible,
+ tok::kw___is_copy_constructible,
tok::kw___is_convertible,
tok::kw___is_convertible_to,
tok::kw___is_destructible,
@@ -1604,6 +1605,7 @@
tok::kw___is_member_pointer,
tok::kw___is_nothrow_assignable,
tok::kw___is_nothrow_constructible,
+ tok::kw___is_nothrow_copy_constructible,
tok::kw___is_nothrow_destructible,
tok::kw___is_nullptr,
tok::kw___is_object,
@@ -1623,6 +1625,7 @@
tok::kw___is_trivial,
tok::kw___is_trivially_assignable,
tok::kw___is_trivially_constructible,
+ tok::kw___is_trivially_copy_constructible,
tok::kw___is_trivially_copyable,
tok::kw___is_unbounded_array,
tok::kw___is_union,
Index: clang/include/clang/Basic/TokenKinds.def
===================================================================
--- clang/include/clang/Basic/TokenKinds.def
+++ clang/include/clang/Basic/TokenKinds.def
@@ -523,6 +523,9 @@
TYPE_TRAIT_1(__is_nullptr, IsNullPointer, KEYCXX)
TYPE_TRAIT_1(__is_scoped_enum, IsScopedEnum, KEYCXX)
TYPE_TRAIT_1(__is_referenceable, IsReferenceable, KEYCXX)
+TYPE_TRAIT_1(__is_copy_constructible, IsCopyConstructible, KEYCXX)
+TYPE_TRAIT_1(__is_nothrow_copy_constructible, IsNothrowCopyConstructible, KEYCXX)
+TYPE_TRAIT_1(__is_trivially_copy_constructible, IsTriviallyCopyConstructible, KEYCXX)
TYPE_TRAIT_2(__reference_binds_to_temporary, ReferenceBindsToTemporary, KEYCXX)
// Embarcadero Expression Traits
_______________________________________________
cfe-commits mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
