| // RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s |
| |
| @protocol NSObject |
| @end |
| @interface NSObject <NSObject> { |
| } |
| @end |
| @interface NSString : NSObject |
| @end |
| void __setRetained(id *ivar, id value, NSObject **o) { |
| *ivar = value; |
| } |
| static NSString *_logProcessPrefix = 0; |
| void func() { |
| __setRetained(&_logProcessPrefix, _logProcessPrefix, &_logProcessPrefix); |
| } |
| @implementation NSObject (ScopeAdditions) |
| + (void)setObjectLogProcessPrefix:(NSString *)processPrefix { |
| __setRetained(&_logProcessPrefix, processPrefix, &_logProcessPrefix); |
| } |
| @end |
| |
| @class Derived; |
| |
| NSObject *ExternFunc (NSObject *filePath, NSObject *key); |
| typedef id FuncSignature (NSObject *arg1, Derived *arg2); |
| |
| @interface Derived: NSObject |
| + (void)registerFunc:(FuncSignature *)function; // expected-note{{passing argument to parameter 'function' here}} |
| @end |
| |
| void foo(void) |
| { |
| // GCC currently allows this (it has some fiarly new support for covariant return types and contravariant argument types). |
| // Since registerFunc: expects a Derived object as it's second argument, I don't know why this would be legal. |
| [Derived registerFunc: ExternFunc]; // expected-warning{{incompatible pointer types sending 'NSObject *(NSObject *, NSObject *)' to parameter of type 'FuncSignature *'}} |
| } |