llvm-project/clang/test/SemaObjC/protocol-warn.m

56 lines
939 B
Objective-C

// RUN: %clang_cc1 -fsyntax-only -verify %s
// radar 7638810
@protocol NSObject @end
@interface NSObject <NSObject> @end
@interface UIResponder : NSObject
@end
@implementation UIResponder
@end
@interface UIView : UIResponder
@end
@implementation UIView
@end
@interface UIWebTiledView : UIView
@end
@implementation UIWebTiledView
@end
@interface UIWebDocumentView : UIWebTiledView
@end
@implementation UIWebDocumentView
@end
@interface UIWebBrowserView : UIWebDocumentView
@end
@implementation UIWebBrowserView
@end
@interface UIPDFView : UIView
@end
@implementation UIPDFView
@end
@interface UIWebPDFView : UIPDFView
@end
@implementation UIWebPDFView
@end
UIWebPDFView *getView()
{
UIWebBrowserView *browserView;
UIWebPDFView *pdfView;
return pdfView ? pdfView : browserView; // expected-warning {{incompatible pointer types returning 'UIView<NSObject> *' from a function with result type 'UIWebPDFView *'}}
}