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      1 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
      2 //rdar: //8591619
      3 // pr8453
      4 
      5 @protocol NSCopying @end
      6 @protocol NSPROTO @end
      7 @protocol NSPROTO1 @end
      8 @protocol NSPROTO2 @end
      9 
     10 @interface NSObject <NSCopying, NSPROTO, NSPROTO1> {
     11     Class isa;
     12 }
     13 @end
     14 
     15 void gorf(NSObject <NSCopying> *); // expected-note {{passing argument to parameter here}}
     16 
     17 NSObject <NSCopying> *foo(id <NSCopying> bar, id id_obj)
     18 {
     19  	NSObject <NSCopying> *Init = bar; // expected-warning {{initializing 'NSObject<NSCopying> *' with an expression of incompatible type 'id<NSCopying>'}}
     20         NSObject *Init1 = bar; // expected-warning {{initializing 'NSObject *' with an expression of incompatible type 'id<NSCopying>'}}
     21 
     22  	NSObject <NSCopying> *I = id_obj; 
     23         NSObject *I1 = id_obj; 
     24         gorf(bar);	// expected-warning {{passing 'id<NSCopying>' to parameter of incompatible type 'NSObject<NSCopying> *'}}
     25 
     26         gorf(id_obj);	
     27 
     28 	return bar; 	// expected-warning {{returning 'id<NSCopying>' from a function with incompatible result type 'NSObject<NSCopying> *'}} 
     29 }
     30 
     31 void test(id <NSCopying, NSPROTO, NSPROTO2> bar)
     32 {
     33   NSObject <NSCopying> *Init = bar; // expected-warning {{initializing 'NSObject<NSCopying> *' with an expression of incompatible type 'id<NSCopying,NSPROTO,NSPROTO2>'}}
     34 }
     35 
     36 // rdar://8843851
     37 @interface NSObject (CAT)
     38 + (struct S*)Meth : (struct S*)arg;
     39 @end
     40 
     41 struct S {
     42  char *types;
     43 };
     44 
     45 @interface I
     46 @end
     47 
     48 @implementation I
     49 - (struct S *)Meth : (struct S*)a {
     50   return [NSObject Meth : a];
     51 }
     52 @end
     53