1// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s 2 3@interface RandomObject { 4@private 5} 6+ (id)alloc; 7@end 8 9@protocol TestProtocol 10- (void)nothingInteresting; 11@end 12 13@protocol Test2Protocol 14+ (id)alloc; 15- (id)alloc2; // expected-note 2 {{method 'alloc2' declared here}} 16@end 17 18@implementation RandomObject 19- (void) Meth { 20 Class<TestProtocol> c = [c alloc]; // expected-warning {{class method '+alloc' not found (return type defaults to 'id')}} 21 Class<Test2Protocol> c1 = [c1 alloc2]; // expected-warning {{instance method 'alloc2' found instead of class method 'alloc2'}} 22 Class<Test2Protocol> c2 = [c2 alloc]; // ok 23} 24+ (id)alloc { return 0; } 25@end 26 27int main (void) 28{ 29 Class<TestProtocol> c = [c alloc]; // expected-warning {{class method '+alloc' not found (return type defaults to 'id')}} 30 Class<Test2Protocol> c1 = [c1 alloc2]; // expected-warning {{instance method 'alloc2' found instead of class method 'alloc2'}} 31 Class<Test2Protocol> c2 = [c2 alloc]; // ok 32 return 0; 33} 34 35@protocol NSObject 36 37- (int)respondsToSelector:(SEL)aSelector; 38 39@end 40 41__attribute__((objc_root_class)) 42@interface NSObject <NSObject> 43 44@end 45 46@protocol OtherProto 47 48- (void)otherInstanceMethod; // expected-note {{method 'otherInstanceMethod' declared here}} 49 50@end 51 52@protocol MyProto <NSObject, OtherProto> 53@end 54 55void allowInstanceMethodsFromRootProtocols(Class<MyProto> c) { 56 [c respondsToSelector: @selector(instanceMethod)]; // no warning 57 [c otherInstanceMethod]; // expected-warning {{instance method 'otherInstanceMethod' found instead of class method 'otherInstanceMethod'}} 58} 59