1*67e74705SXin Li// RUN: %clang_cc1 -fsyntax-only -verify %s 2*67e74705SXin Li// expected-no-diagnostics 3*67e74705SXin Li 4*67e74705SXin Li#include <stddef.h> 5*67e74705SXin Li 6*67e74705SXin Litypedef struct objc_class *Class; 7*67e74705SXin Litypedef struct objc_object { 8*67e74705SXin Li Class isa; 9*67e74705SXin Li} *id; 10*67e74705SXin Liid objc_getClass(const char *s); 11*67e74705SXin Li 12*67e74705SXin Li@interface Object 13*67e74705SXin Li+ self; 14*67e74705SXin Li@end 15*67e74705SXin Li 16*67e74705SXin Li@protocol Func 17*67e74705SXin Li+ (void) class_func0; 18*67e74705SXin Li- (void) instance_func0; 19*67e74705SXin Li@end 20*67e74705SXin Li 21*67e74705SXin Li@interface Derived: Object <Func> 22*67e74705SXin Li@end 23*67e74705SXin Li 24*67e74705SXin Li@interface Derived2: Object <Func> 25*67e74705SXin Li@end 26*67e74705SXin Li 27*67e74705SXin Listatic void doSomething(Class <Func> unsupportedObjectType) { 28*67e74705SXin Li [unsupportedObjectType class_func0]; 29*67e74705SXin Li} 30*67e74705SXin Li 31*67e74705SXin Listatic void doSomethingElse(id <Func> pleaseConvertToThisType) { 32*67e74705SXin Li [pleaseConvertToThisType class_func0]; 33*67e74705SXin Li} 34*67e74705SXin Li 35*67e74705SXin Liint main(int argv, char *argc[]) { 36*67e74705SXin Li doSomething([Derived self]); 37*67e74705SXin Li doSomething([Derived2 self]); 38*67e74705SXin Li doSomethingElse([Derived self]); 39*67e74705SXin Li doSomethingElse([Derived2 self]); 40*67e74705SXin Li} 41*67e74705SXin Li 42