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| -rw-r--r-- | test/Sema/objc-comptypes-3.m | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/test/Sema/objc-comptypes-3.m b/test/Sema/objc-comptypes-3.m new file mode 100644 index 0000000000..c7c4cab711 --- /dev/null +++ b/test/Sema/objc-comptypes-3.m @@ -0,0 +1,62 @@ +// RUN: clang -fsyntax-only -verify %s +extern void foo(); +#include <objc/objc.h> + +@protocol MyProtocolA +- (void) methodA; +@end + +@protocol MyProtocolB +- (void) methodB; +@end + +@protocol MyProtocolAB <MyProtocolA, MyProtocolB> +@end + +@protocol MyProtocolAC <MyProtocolA> +- (void) methodC; +@end + +int main() +{ + id<MyProtocolA> obj_a = nil; + id<MyProtocolB> obj_b = nil; + id<MyProtocolAB> obj_ab = nil; + id<MyProtocolAC> obj_ac = nil; + + obj_a = obj_b; // expected-error {{incompatible types assigning 'id<MyProtocolB>' to 'id<MyProtocolA>'}} + obj_a = obj_ab; /* Ok */ + obj_a = obj_ac; /* Ok */ + + obj_b = obj_a; // expected-error {{incompatible types assigning 'id<MyProtocolA>' to 'id<MyProtocolB>'}} + obj_b = obj_ab; /* Ok */ + obj_b = obj_ac; // expected-error {{incompatible types assigning 'id<MyProtocolAC>' to 'id<MyProtocolB>'}} + + obj_ab = obj_a; // expected-error {{incompatible types assigning 'id<MyProtocolA>' to 'id<MyProtocolAB>'}} + obj_ab = obj_b; // expected-error {{incompatible types assigning 'id<MyProtocolB>' to 'id<MyProtocolAB>'}} + obj_ab = obj_ac; // expected-error {{incompatible types assigning 'id<MyProtocolAC>' to 'id<MyProtocolAB>'}} + + obj_ac = obj_a; // expected-error {{incompatible types assigning 'id<MyProtocolA>' to 'id<MyProtocolAC>'}} + obj_ac = obj_b; // expected-error {{incompatible types assigning 'id<MyProtocolB>' to 'id<MyProtocolAC>'}} + obj_ac = obj_ab; // expected-error {{incompatible types assigning 'id<MyProtocolAB>' to 'id<MyProtocolAC>'}} + + if (obj_a == obj_b) foo (); // expected-error {{invalid operands to binary expression ('id<MyProtocolA>' and 'id<MyProtocolB>')}} + if (obj_b == obj_a) foo (); // expected-error {{invalid operands to binary expression ('id<MyProtocolB>' and 'id<MyProtocolA>')}} + + if (obj_a == obj_ab) foo (); /* Ok */ + if (obj_ab == obj_a) foo (); /* Ok */ + + if (obj_a == obj_ac) foo (); /* Ok */ + if (obj_ac == obj_a) foo (); /* Ok */ + + if (obj_b == obj_ab) foo (); /* Ok */ + if (obj_ab == obj_b) foo (); /* Ok */ + + if (obj_b == obj_ac) foo (); // expected-error {{invalid operands to binary expression ('id<MyProtocolB>' and 'id<MyProtocolAC>')}} + if (obj_ac == obj_b) foo (); // expected-error {{invalid operands to binary expression ('id<MyProtocolAC>' and 'id<MyProtocolB>')}} + + if (obj_ab == obj_ac) foo (); // expected-error {{invalid operands to binary expression ('id<MyProtocolAB>' and 'id<MyProtocolAC>')}} + if (obj_ac == obj_ab) foo (); // expected-error {{invalid operands to binary expression ('id<MyProtocolAC>' and 'id<MyProtocolAB>')}} + + return 0; +} |