1*67e74705SXin Li// RUN: %clang_cc1 -verify -Wno-objc-root-class %s 2*67e74705SXin Li// expected-no-diagnostics 3*67e74705SXin Li 4*67e74705SXin Li@protocol MyProto1 5*67e74705SXin Li@optional 6*67e74705SXin Li- (void) FOO; 7*67e74705SXin Li@optional 8*67e74705SXin Li- (void) FOO1; 9*67e74705SXin Li@optional 10*67e74705SXin Li- (void) REQ; 11*67e74705SXin Li@optional 12*67e74705SXin Li@end 13*67e74705SXin Li 14*67e74705SXin Li@interface MyProto2 <MyProto1> 15*67e74705SXin Li- (void) FOO2; 16*67e74705SXin Li- (void) FOO3; 17*67e74705SXin Li@end 18*67e74705SXin Li 19*67e74705SXin Li@implementation MyProto2 20*67e74705SXin Li- (void) FOO2{} 21*67e74705SXin Li- (void) FOO3{} 22*67e74705SXin Li@end 23