1// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s 2 3@interface A @end 4 5@implementation A @end // expected-note {{class implementation is declared here}} 6 7@interface A () // expected-error {{cannot declare class extension for 'A' after class implementation}} 8-(void) im0; 9@end 10 11