llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-clang-codegen @llvm/pr-subscribers-clang Author: Sam McCall (sam-mccall) <details> <summary>Changes</summary> This reverts commit 28760b63bbf9e267713957105a8d17091fb0d20e. The last commit was missing the new testcase, now fixed. --- Patch is 28.55 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/87325.diff 22 Files Affected: - (modified) clang/docs/ReleaseNotes.rst (+15) - (modified) clang/include/clang/Basic/Attr.td (+2-1) - (modified) clang/include/clang/Basic/AttrDocs.td (+25) - (modified) clang/include/clang/Basic/Features.def (+1) - (modified) clang/include/clang/Parse/Parser.h (+1) - (modified) clang/include/clang/Sema/Sema.h (+3) - (modified) clang/lib/AST/Type.cpp (+19-10) - (modified) clang/lib/CodeGen/CGCall.cpp (+2-1) - (modified) clang/lib/CodeGen/CodeGenFunction.cpp (+2-1) - (modified) clang/lib/Parse/ParseDeclCXX.cpp (+24-9) - (modified) clang/lib/Sema/SemaAttr.cpp (+12) - (modified) clang/lib/Sema/SemaChecking.cpp (+9) - (modified) clang/lib/Sema/SemaDecl.cpp (+3-1) - (modified) clang/lib/Sema/SemaDeclAttr.cpp (+18) - (modified) clang/lib/Sema/SemaInit.cpp (+5) - (modified) clang/lib/Sema/SemaOverload.cpp (+7) - (modified) clang/lib/Sema/SemaTemplate.cpp (+1) - (modified) clang/lib/Sema/SemaType.cpp (+14-4) - (modified) clang/test/Sema/nullability.c (+2) - (modified) clang/test/SemaCXX/nullability.cpp (+60-2) - (added) clang/test/SemaObjCXX/Inputs/nullability-consistency-smart.h (+7) - (modified) clang/test/SemaObjCXX/nullability-consistency.mm (+1) ``````````diff diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index 76eaf0bf11c303..b2faab1f1525b2 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -253,6 +253,21 @@ Attribute Changes in Clang added a new extension query ``__has_extension(swiftcc)`` corresponding to the ``__attribute__((swiftcc))`` attribute. +- The ``_Nullable`` and ``_Nonnull`` family of type attributes can now apply + to certain C++ class types, such as smart pointers: + ``void useObject(std::unique_ptr<Object> _Nonnull obj);``. + + This works for standard library types including ``unique_ptr``, ``shared_ptr``, + and ``function``. See + `the attribute reference documentation <https://llvm.org/docs/AttributeReference.html#nullability-attributes>`_ + for the full list. + +- The ``_Nullable`` attribute can be applied to C++ class declarations: + ``template <class T> class _Nullable MySmartPointer {};``. + + This allows the ``_Nullable`` and ``_Nonnull`` family of type attributes to + apply to this class. + Improvements to Clang's diagnostics ----------------------------------- - Clang now applies syntax highlighting to the code snippets it diff --git a/clang/include/clang/Basic/Attr.td b/clang/include/clang/Basic/Attr.td index 80e607525a0a37..6584460cf5685e 100644 --- a/clang/include/clang/Basic/Attr.td +++ b/clang/include/clang/Basic/Attr.td @@ -2178,9 +2178,10 @@ def TypeNonNull : TypeAttr { let Documentation = [TypeNonNullDocs]; } -def TypeNullable : TypeAttr { +def TypeNullable : DeclOrTypeAttr { let Spellings = [CustomKeyword<"_Nullable">]; let Documentation = [TypeNullableDocs]; +// let Subjects = SubjectList<[CXXRecord], ErrorDiag>; } def TypeNullableResult : TypeAttr { diff --git a/clang/include/clang/Basic/AttrDocs.td b/clang/include/clang/Basic/AttrDocs.td index 3ea4d676b4f89d..0ca4ea377fc36a 100644 --- a/clang/include/clang/Basic/AttrDocs.td +++ b/clang/include/clang/Basic/AttrDocs.td @@ -4151,6 +4151,20 @@ non-underscored keywords. For example: @property (assign, nullable) NSView *superview; @property (readonly, nonnull) NSArray *subviews; @end + +As well as built-in pointer types, the nullability attributes can be attached +to C++ classes marked with the ``_Nullable`` attribute. + +The following C++ standard library types are considered nullable: +``unique_ptr``, ``shared_ptr``, ``auto_ptr``, ``exception_ptr``, ``function``, +``move_only_function`` and ``coroutine_handle``. + +Types should be marked nullable only where the type itself leaves nullability +ambiguous. For example, ``std::optional`` is not marked ``_Nullable``, because +``optional<int> _Nullable`` is redundant and ``optional<int> _Nonnull`` is +not a useful type. ``std::weak_ptr`` is not nullable, because its nullability +can change with no visible modification, so static annotation is unlikely to be +unhelpful. }]; } @@ -4185,6 +4199,17 @@ The ``_Nullable`` nullability qualifier indicates that a value of the int fetch_or_zero(int * _Nullable ptr); a caller of ``fetch_or_zero`` can provide null. + +The ``_Nullable`` attribute on classes indicates that the given class can +represent null values, and so the ``_Nullable``, ``_Nonnull`` etc qualifiers +make sense for this type. For example: + + .. code-block:: c + + class _Nullable ArenaPointer { ... }; + + ArenaPointer _Nonnull x = ...; + ArenaPointer _Nullable y = nullptr; }]; } diff --git a/clang/include/clang/Basic/Features.def b/clang/include/clang/Basic/Features.def index b41aadc73f205d..fe4d1c4afcca65 100644 --- a/clang/include/clang/Basic/Features.def +++ b/clang/include/clang/Basic/Features.def @@ -94,6 +94,7 @@ EXTENSION(define_target_os_macros, FEATURE(enumerator_attributes, true) FEATURE(nullability, true) FEATURE(nullability_on_arrays, true) +FEATURE(nullability_on_classes, true) FEATURE(nullability_nullable_result, true) FEATURE(memory_sanitizer, LangOpts.Sanitize.hasOneOf(SanitizerKind::Memory | diff --git a/clang/include/clang/Parse/Parser.h b/clang/include/clang/Parse/Parser.h index bba8ef4ff01739..580bf2a5d79df5 100644 --- a/clang/include/clang/Parse/Parser.h +++ b/clang/include/clang/Parse/Parser.h @@ -3014,6 +3014,7 @@ class Parser : public CodeCompletionHandler { void DiagnoseAndSkipExtendedMicrosoftTypeAttributes(); SourceLocation SkipExtendedMicrosoftTypeAttributes(); void ParseMicrosoftInheritanceClassAttributes(ParsedAttributes &attrs); + void ParseNullabilityClassAttributes(ParsedAttributes &attrs); void ParseBorlandTypeAttributes(ParsedAttributes &attrs); void ParseOpenCLKernelAttributes(ParsedAttributes &attrs); void ParseOpenCLQualifiers(ParsedAttributes &Attrs); diff --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h index a02b684f2c77e2..8c98d8c7fef7a7 100644 --- a/clang/include/clang/Sema/Sema.h +++ b/clang/include/clang/Sema/Sema.h @@ -1660,6 +1660,9 @@ class Sema final { /// Add [[gsl::Pointer]] attributes for std:: types. void inferGslPointerAttribute(TypedefNameDecl *TD); + /// Add _Nullable attributes for std:: types. + void inferNullableClassAttribute(CXXRecordDecl *CRD); + enum PragmaOptionsAlignKind { POAK_Native, // #pragma options align=native POAK_Natural, // #pragma options align=natural diff --git a/clang/lib/AST/Type.cpp b/clang/lib/AST/Type.cpp index 779d8a810820d2..cb22c91a12aa89 100644 --- a/clang/lib/AST/Type.cpp +++ b/clang/lib/AST/Type.cpp @@ -4652,16 +4652,15 @@ bool Type::canHaveNullability(bool ResultIfUnknown) const { case Type::Auto: return ResultIfUnknown; - // Dependent template specializations can instantiate to pointer - // types unless they're known to be specializations of a class - // template. + // Dependent template specializations could instantiate to pointer types. case Type::TemplateSpecialization: - if (TemplateDecl *templateDecl - = cast<TemplateSpecializationType>(type.getTypePtr()) - ->getTemplateName().getAsTemplateDecl()) { - if (isa<ClassTemplateDecl>(templateDecl)) - return false; - } + // If it's a known class template, we can already check if it's nullable. + if (TemplateDecl *templateDecl = + cast<TemplateSpecializationType>(type.getTypePtr()) + ->getTemplateName() + .getAsTemplateDecl()) + if (auto *CTD = dyn_cast<ClassTemplateDecl>(templateDecl)) + return CTD->getTemplatedDecl()->hasAttr<TypeNullableAttr>(); return ResultIfUnknown; case Type::Builtin: @@ -4718,6 +4717,17 @@ bool Type::canHaveNullability(bool ResultIfUnknown) const { } llvm_unreachable("unknown builtin type"); + case Type::Record: { + const RecordDecl *RD = cast<RecordType>(type)->getDecl(); + // For template specializations, look only at primary template attributes. + // This is a consistent regardless of whether the instantiation is known. + if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(RD)) + return CTSD->getSpecializedTemplate() + ->getTemplatedDecl() + ->hasAttr<TypeNullableAttr>(); + return RD->hasAttr<TypeNullableAttr>(); + } + // Non-pointer types. case Type::Complex: case Type::LValueReference: @@ -4735,7 +4745,6 @@ bool Type::canHaveNullability(bool ResultIfUnknown) const { case Type::DependentAddressSpace: case Type::FunctionProto: case Type::FunctionNoProto: - case Type::Record: case Type::DeducedTemplateSpecialization: case Type::Enum: case Type::InjectedClassName: diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp index 9308528ac93823..f12765b826935b 100644 --- a/clang/lib/CodeGen/CGCall.cpp +++ b/clang/lib/CodeGen/CGCall.cpp @@ -4379,7 +4379,8 @@ void CodeGenFunction::EmitNonNullArgCheck(RValue RV, QualType ArgType, NNAttr = getNonNullAttr(AC.getDecl(), PVD, ArgType, ArgNo); bool CanCheckNullability = false; - if (SanOpts.has(SanitizerKind::NullabilityArg) && !NNAttr && PVD) { + if (SanOpts.has(SanitizerKind::NullabilityArg) && !NNAttr && PVD && + !PVD->getType()->isRecordType()) { auto Nullability = PVD->getType()->getNullability(); CanCheckNullability = Nullability && *Nullability == NullabilityKind::NonNull && diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp index 90324de7268ebe..6474d6c8c1d1e4 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -990,7 +990,8 @@ void CodeGenFunction::StartFunction(GlobalDecl GD, QualType RetTy, // return value. Initialize the flag to 'true' and refine it in EmitParmDecl. if (SanOpts.has(SanitizerKind::NullabilityReturn)) { auto Nullability = FnRetTy->getNullability(); - if (Nullability && *Nullability == NullabilityKind::NonNull) { + if (Nullability && *Nullability == NullabilityKind::NonNull && + !FnRetTy->isRecordType()) { if (!(SanOpts.has(SanitizerKind::ReturnsNonnullAttribute) && CurCodeDecl && CurCodeDecl->getAttr<ReturnsNonNullAttr>())) RetValNullabilityPrecondition = diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp index 63fe678cbb29e2..861a25dc5103c1 100644 --- a/clang/lib/Parse/ParseDeclCXX.cpp +++ b/clang/lib/Parse/ParseDeclCXX.cpp @@ -1502,6 +1502,15 @@ void Parser::ParseMicrosoftInheritanceClassAttributes(ParsedAttributes &attrs) { } } +void Parser::ParseNullabilityClassAttributes(ParsedAttributes &attrs) { + while (Tok.is(tok::kw__Nullable)) { + IdentifierInfo *AttrName = Tok.getIdentifierInfo(); + auto Kind = Tok.getKind(); + SourceLocation AttrNameLoc = ConsumeToken(); + attrs.addNew(AttrName, AttrNameLoc, nullptr, AttrNameLoc, nullptr, 0, Kind); + } +} + /// Determine whether the following tokens are valid after a type-specifier /// which could be a standalone declaration. This will conservatively return /// true if there's any doubt, and is appropriate for insert-';' fixits. @@ -1683,15 +1692,21 @@ void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind, ParsedAttributes attrs(AttrFactory); // If attributes exist after tag, parse them. - MaybeParseAttributes(PAKM_CXX11 | PAKM_Declspec | PAKM_GNU, attrs); - - // Parse inheritance specifiers. - if (Tok.isOneOf(tok::kw___single_inheritance, tok::kw___multiple_inheritance, - tok::kw___virtual_inheritance)) - ParseMicrosoftInheritanceClassAttributes(attrs); - - // Allow attributes to precede or succeed the inheritance specifiers. - MaybeParseAttributes(PAKM_CXX11 | PAKM_Declspec | PAKM_GNU, attrs); + for (;;) { + MaybeParseAttributes(PAKM_CXX11 | PAKM_Declspec | PAKM_GNU, attrs); + // Parse inheritance specifiers. + if (Tok.isOneOf(tok::kw___single_inheritance, + tok::kw___multiple_inheritance, + tok::kw___virtual_inheritance)) { + ParseMicrosoftInheritanceClassAttributes(attrs); + continue; + } + if (Tok.is(tok::kw__Nullable)) { + ParseNullabilityClassAttributes(attrs); + continue; + } + break; + } // Source location used by FIXIT to insert misplaced // C++11 attributes diff --git a/clang/lib/Sema/SemaAttr.cpp b/clang/lib/Sema/SemaAttr.cpp index 0dcf42e4899713..a5dd158808f26b 100644 --- a/clang/lib/Sema/SemaAttr.cpp +++ b/clang/lib/Sema/SemaAttr.cpp @@ -215,6 +215,18 @@ void Sema::inferGslOwnerPointerAttribute(CXXRecordDecl *Record) { inferGslPointerAttribute(Record, Record); } +void Sema::inferNullableClassAttribute(CXXRecordDecl *CRD) { + static llvm::StringSet<> Nullable{ + "auto_ptr", "shared_ptr", "unique_ptr", "exception_ptr", + "coroutine_handle", "function", "move_only_function", + }; + + if (CRD->isInStdNamespace() && Nullable.count(CRD->getName()) && + !CRD->hasAttr<TypeNullableAttr>()) + for (Decl *Redecl : CRD->redecls()) + Redecl->addAttr(TypeNullableAttr::CreateImplicit(Context)); +} + void Sema::ActOnPragmaOptionsAlign(PragmaOptionsAlignKind Kind, SourceLocation PragmaLoc) { PragmaMsStackAction Action = Sema::PSK_Reset; diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp index 11401b6f56c0ea..3dcd18b3afc8b4 100644 --- a/clang/lib/Sema/SemaChecking.cpp +++ b/clang/lib/Sema/SemaChecking.cpp @@ -27,6 +27,7 @@ #include "clang/AST/ExprObjC.h" #include "clang/AST/ExprOpenMP.h" #include "clang/AST/FormatString.h" +#include "clang/AST/IgnoreExpr.h" #include "clang/AST/NSAPI.h" #include "clang/AST/NonTrivialTypeVisitor.h" #include "clang/AST/OperationKinds.h" @@ -7610,6 +7611,14 @@ bool Sema::getFormatStringInfo(const FormatAttr *Format, bool IsCXXMember, /// /// Returns true if the value evaluates to null. static bool CheckNonNullExpr(Sema &S, const Expr *Expr) { + // Treat (smart) pointers constructed from nullptr as null, whether we can + // const-evaluate them or not. + // This must happen first: the smart pointer expr might have _Nonnull type! + if (isa<CXXNullPtrLiteralExpr>( + IgnoreExprNodes(Expr, IgnoreImplicitAsWrittenSingleStep, + IgnoreElidableImplicitConstructorSingleStep))) + return true; + // If the expression has non-null type, it doesn't evaluate to null. if (auto nullability = Expr->IgnoreImplicit()->getType()->getNullability()) { if (*nullability == NullabilityKind::NonNull) diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp index 5027deda0d7e09..6ff85c0c5c29da 100644 --- a/clang/lib/Sema/SemaDecl.cpp +++ b/clang/lib/Sema/SemaDecl.cpp @@ -18319,8 +18319,10 @@ Sema::ActOnTag(Scope *S, unsigned TagSpec, TagUseKind TUK, SourceLocation KWLoc, if (PrevDecl) mergeDeclAttributes(New, PrevDecl); - if (auto *CXXRD = dyn_cast<CXXRecordDecl>(New)) + if (auto *CXXRD = dyn_cast<CXXRecordDecl>(New)) { inferGslOwnerPointerAttribute(CXXRD); + inferNullableClassAttribute(CXXRD); + } // If there's a #pragma GCC visibility in scope, set the visibility of this // record. diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp index f25f3afd0f4af2..8bce04640e748e 100644 --- a/clang/lib/Sema/SemaDeclAttr.cpp +++ b/clang/lib/Sema/SemaDeclAttr.cpp @@ -5982,6 +5982,20 @@ static void handleBuiltinAliasAttr(Sema &S, Decl *D, D->addAttr(::new (S.Context) BuiltinAliasAttr(S.Context, AL, Ident)); } +static void handleNullableTypeAttr(Sema &S, Decl *D, const ParsedAttr &AL) { + if (AL.isUsedAsTypeAttr()) + return; + + if (auto *CRD = dyn_cast<CXXRecordDecl>(D); + !CRD || !(CRD->isClass() || CRD->isStruct())) { + S.Diag(AL.getRange().getBegin(), diag::err_attribute_wrong_decl_type_str) + << AL << AL.isRegularKeywordAttribute() << "classes"; + return; + } + + handleSimpleAttribute<TypeNullableAttr>(S, D, AL); +} + static void handlePreferredTypeAttr(Sema &S, Decl *D, const ParsedAttr &AL) { if (!AL.hasParsedType()) { S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << AL << 1; @@ -9933,6 +9947,10 @@ ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, const ParsedAttr &AL, case ParsedAttr::AT_UsingIfExists: handleSimpleAttribute<UsingIfExistsAttr>(S, D, AL); break; + + case ParsedAttr::AT_TypeNullable: + handleNullableTypeAttr(S, D, AL); + break; } } diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp index 777f89c70f87c2..e2a1951f1062cb 100644 --- a/clang/lib/Sema/SemaInit.cpp +++ b/clang/lib/Sema/SemaInit.cpp @@ -7082,6 +7082,11 @@ PerformConstructorInitialization(Sema &S, hasCopyOrMoveCtorParam(S.Context, getConstructorInfo(Step.Function.FoundDecl)); + // A smart pointer constructed from a nullable pointer is nullable. + if (NumArgs == 1 && !Kind.isExplicitCast()) + S.diagnoseNullableToNonnullConversion( + Entity.getType(), Args.front()->getType(), Kind.getLocation()); + // Determine the arguments required to actually perform the constructor // call. if (S.CompleteConstructorCall(Constructor, Step.Type, Args, Loc, diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp index 16d54c1ffe5fd9..0c913bc700f4a1 100644 --- a/clang/lib/Sema/SemaOverload.cpp +++ b/clang/lib/Sema/SemaOverload.cpp @@ -14826,6 +14826,13 @@ ExprResult Sema::CreateOverloadedBinOp(SourceLocation OpLoc, } } + // Check for nonnull = nullable. + // This won't be caught in the arg's initialization: the parameter to + // the assignment operator is not marked nonnull. + if (Op == OO_Equal) + diagnoseNullableToNonnullConversion(Args[0]->getType(), + Args[1]->getType(), OpLoc); + // Convert the arguments. if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(FnDecl)) { // Best->Access is only meaningful for class members. diff --git a/clang/lib/Sema/SemaTemplate.cpp b/clang/lib/Sema/SemaTemplate.cpp index 1a2d5e9310dbe1..befec401c8eec3 100644 --- a/clang/lib/Sema/SemaTemplate.cpp +++ b/clang/lib/Sema/SemaTemplate.cpp @@ -2191,6 +2191,7 @@ DeclResult Sema::CheckClassTemplate( AddPushedVisibilityAttribute(NewClass); inferGslOwnerPointerAttribute(NewClass); + inferNullableClassAttribute(NewClass); if (TUK != TUK_Friend) { // Per C++ [basic.scope.temp]p2, skip the template parameter scopes. diff --git a/clang/lib/Sema/SemaType.cpp b/clang/lib/Sema/SemaType.cpp index d88895d3529458..8762744396f4dd 100644 --- a/clang/lib/Sema/SemaType.cpp +++ b/clang/lib/Sema/SemaType.cpp @@ -4717,6 +4717,18 @@ static bool DiagnoseMultipleAddrSpaceAttributes(Sema &S, LangAS ASOld, return false; } +// Whether this is a type broadly expected to have nullability attached. +// These types are affected by `#pragma assume_nonnull`, and missing nullability +// will be diagnosed with -Wnullability-completeness. +static bool shouldHaveNullability(QualType T) { + return T->canHaveNullability(/*ResultIfUnknown=*/false) && + // For now, do not infer/require nullability on C++ smart pointers. + // It's unclear whether the pragma's behavior is useful for C++. + // e.g. treating type-aliases and template-type-parameters differently + // from types of declarations can be surprising. + !isa<RecordType>(T->getCanonicalTypeInternal()); +} + static TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, QualType declSpecType, TypeSourceInfo *TInfo) { @@ -4835,8 +4847,7 @@ static TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, // inner pointers. complainAboutMissingNullability = CAMN_InnerPointers; - if (T->canHaveNullability(/*ResultIfUnknown*/ false) && - !T->getNullability()) { + if (shouldHaveNullability(T) && !T->getNullability()) { // Note that we allow but don't require nullability on dependent types. ++NumPointersRemaining; } @@ -5059,8 +5070,7 @@ static TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, // If the type itself could have nullability but does not, infer pointer // nullability and perform consistency checking. if (S.CodeSynthesisContexts.empty()) { - if (T->canHaveNullability(/*ResultIfUnknown*/ false) && - !T->getNullability()) { + if (shouldHaveNullability(T) && !T->getNullability()) { if (isVaList(T)) { // Record that we've seen a pointer, but do nothing else. if (NumPointersRemaining > 0) diff --git a/clang/test/Sema/nullability.c b/clang/test/Sema/nullability.c index 7d193bea46771f..0401516233b6db 100644 --- a/clang/test/Sema/nullability.c +++ b/clang/test/Sema/nullability.c @@ -248,3 +248,5 @@ void arraysInBlocks(void) { void (^withTypedefBad)(INTS _Nonnull [2]) = // expected-error {{nullability specifier '_Nonnull' cannot be applied to non-pointer type 'INTS' (aka 'int[4]')}} ^(INTS _Nonnull x[2]) {}; // expected-error {{nullability specifier '_Nonnull' cannot be applied to non-pointer type 'INTS' (aka 'int[4]')}} } + +struct _Nullable NotCplusplusClass {}; // expected-error {{'_Nullable' attribute only applies to classes}} diff --git a/clang/test/SemaCXX/nullability.cpp b/clang/test/SemaCXX/nullability.cpp index 8d0c... [truncated] `````````` </details> https://github.com/llvm/llvm-project/pull/87325 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
