// Helpers.
//===----------------------------------------------------------------------===//
-/// \brief True if the class is one that does not support weak.
-static bool isClassInWeakBlacklist(ObjCInterfaceDecl *cls) {
- if (!cls)
- return false;
-
- bool inList = llvm::StringSwitch<bool>(cls->getName())
- .Case("NSColorSpace", true)
- .Case("NSFont", true)
- .Case("NSFontPanel", true)
- .Case("NSImage", true)
- .Case("NSLazyBrowserCell", true)
- .Case("NSWindow", true)
- .Case("NSWindowController", true)
- .Case("NSViewController", true)
- .Case("NSMenuView", true)
- .Case("NSPersistentUIWindowInfo", true)
- .Case("NSTableCellView", true)
- .Case("NSATSTypeSetter", true)
- .Case("NSATSGlyphStorage", true)
- .Case("NSLineFragmentRenderingContext", true)
- .Case("NSAttributeDictionary", true)
- .Case("NSParagraphStyle", true)
- .Case("NSTextTab", true)
- .Case("NSSimpleHorizontalTypesetter", true)
- .Case("_NSCachedAttributedString", true)
- .Case("NSStringDrawingTextStorage", true)
- .Case("NSTextView", true)
- .Case("NSSubTextStorage", true)
- .Default(false);
-
- if (inList)
- return true;
-
- return isClassInWeakBlacklist(cls->getSuperClass());
-}
-
bool trans::canApplyWeak(ASTContext &Ctx, QualType type,
bool AllowOnUnknownClass) {
if (!Ctx.getLangOpts().ObjCRuntimeHasWeak)
return false; // forward classes are not verifiable, therefore not safe.
if (Class->isArcWeakrefUnavailable())
return false;
- if (isClassInWeakBlacklist(Class))
- return false;
}
return true;