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// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
@interface RandomObject {
@private
}
+ (id)alloc;
@end
@protocol TestProtocol
- (void)nothingInteresting;
@end
@protocol Test2Protocol
+ (id)alloc;
- (id)alloc2; // expected-note 2 {{method 'alloc2' declared here}}
@end
@implementation RandomObject
- (void) Meth {
Class<TestProtocol> c = [c alloc]; // expected-warning {{class method '+alloc' not found (return type defaults to 'id')}}
Class<Test2Protocol> c1 = [c1 alloc2]; // expected-warning {{instance method 'alloc2' found instead of class method 'alloc2'}}
Class<Test2Protocol> c2 = [c2 alloc]; // ok
}
+ (id)alloc { return 0; }
@end
int main (void)
{
Class<TestProtocol> c = [c alloc]; // expected-warning {{class method '+alloc' not found (return type defaults to 'id')}}
Class<Test2Protocol> c1 = [c1 alloc2]; // expected-warning {{instance method 'alloc2' found instead of class method 'alloc2'}}
Class<Test2Protocol> c2 = [c2 alloc]; // ok
return 0;
}
@protocol NSObject
- (int)respondsToSelector:(SEL)aSelector;
@end
__attribute__((objc_root_class))
@interface NSObject <NSObject>
@end
@protocol OtherProto
- (void)otherInstanceMethod; // expected-note {{method 'otherInstanceMethod' declared here}}
@end
@protocol MyProto <NSObject, OtherProto>
@end
void allowInstanceMethodsFromRootProtocols(Class<MyProto> c) {
[c respondsToSelector: @selector(instanceMethod)]; // no warning
[c otherInstanceMethod]; // expected-warning {{instance method 'otherInstanceMethod' found instead of class method 'otherInstanceMethod'}}
}
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