| // RUN: clang -fsyntax-only -verify %s | |
| @protocol B; | |
| @protocol C < B > // expected-warning{{cannot find protocol definition for 'B'}} // expected-note{{previous definition is here}} | |
| @end | |
| @protocol A < C > | |
| @end | |
| @protocol B < A > // expected-error{{protocol has circular dependency}} | |
| @end | |