diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/SemaObjC/block-id-as-block-argtype.m | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/SemaObjC/block-id-as-block-argtype.m b/test/SemaObjC/block-id-as-block-argtype.m new file mode 100644 index 0000000000..1b71a5c87b --- /dev/null +++ b/test/SemaObjC/block-id-as-block-argtype.m @@ -0,0 +1,21 @@ +// 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}} + +int main() { + block1_t b1; + block2_t b2; + block3_t b3; + block3_t b4; + 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 +} |