| // RUN: %clang_cc1 %s -fsyntax-only -verify -fblocks |
| // rdar://10734265 |
| |
| @class NSObject; |
| typedef void (^block1_t)(int arg); |
| typedef void (^block2_t)(block1_t arg); |
| typedef void (^block3_t)(NSObject *arg); |
| typedef void (^block4_t)(id arg); |
| |
| void fn(block4_t arg); // expected-note {{passing argument to parameter 'arg' here}} |
| |
| void another_fn(block2_t arg); |
| |
| int main() { |
| block1_t b1; |
| block2_t b2; |
| block3_t b3; |
| block3_t b4; |
| block4_t b5; |
| |
| fn(b1); // expected-error {{incompatible block pointer types passing 'block1_t' (aka 'void (^)(int)') to parameter of type 'block4_t' (aka 'void (^)(id)')}} |
| fn(b2); // must succeed: block1_t *is* compatible with id |
| fn(b3); // succeeds: NSObject* compatible with id |
| fn(b4); // succeeds: id compatible with id |
| |
| another_fn(b5); |
| } |
