diff options
Diffstat (limited to 'clang/lib/Sema/SemaDeclObjC.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaDeclObjC.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaDeclObjC.cpp b/clang/lib/Sema/SemaDeclObjC.cpp index 5b402e5f6ed..dbdb558ba42 100644 --- a/clang/lib/Sema/SemaDeclObjC.cpp +++ b/clang/lib/Sema/SemaDeclObjC.cpp @@ -3495,6 +3495,23 @@ void Sema::DiagnoseDuplicateIvars(ObjCInterfaceDecl *ID, } } +/// Diagnose attempts to define ARC-__weak ivars when __weak is disabled. +static void DiagnoseWeakIvars(Sema &S, ObjCImplementationDecl *ID) { + if (S.getLangOpts().ObjCWeak) return; + + for (auto ivar = ID->getClassInterface()->all_declared_ivar_begin(); + ivar; ivar = ivar->getNextIvar()) { + if (ivar->isInvalidDecl()) continue; + if (ivar->getType().getObjCLifetime() == Qualifiers::OCL_Weak) { + if (S.getLangOpts().ObjCWeakRuntime) { + S.Diag(ivar->getLocation(), diag::err_arc_weak_disabled); + } else { + S.Diag(ivar->getLocation(), diag::err_arc_weak_no_runtime); + } + } + } +} + Sema::ObjCContainerKind Sema::getObjCContainerKind() const { switch (CurContext->getDeclKind()) { case Decl::ObjCInterface: @@ -3644,6 +3661,7 @@ Decl *Sema::ActOnAtEnd(Scope *S, SourceRange AtEnd, ArrayRef<Decl *> allMethods, DiagnoseUnusedBackingIvarInAccessor(S, IC); if (IDecl->hasDesignatedInitializers()) DiagnoseMissingDesignatedInitOverrides(IC, IDecl); + DiagnoseWeakIvars(*this, IC); bool HasRootClassAttr = IDecl->hasAttr<ObjCRootClassAttr>(); if (IDecl->getSuperClass() == nullptr) { |
