1// RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s 2 3@protocol NSObject 4@end 5@interface NSObject <NSObject> { 6} 7@end 8@interface NSString : NSObject 9@end 10void __setRetained(id *ivar, id value, NSObject **o) { 11 *ivar = value; 12} 13static NSString *_logProcessPrefix = 0; 14void func() { 15 __setRetained(&_logProcessPrefix, _logProcessPrefix, &_logProcessPrefix); 16} 17@implementation NSObject (ScopeAdditions) 18+ (void)setObjectLogProcessPrefix:(NSString *)processPrefix { 19 __setRetained(&_logProcessPrefix, processPrefix, &_logProcessPrefix); 20} 21@end 22 23@class Derived; 24 25NSObject *ExternFunc (NSObject *filePath, NSObject *key); 26typedef id FuncSignature (NSObject *arg1, Derived *arg2); 27 28@interface Derived: NSObject 29+ (void)registerFunc:(FuncSignature *)function; // expected-note{{passing argument to parameter 'function' here}} 30@end 31 32void foo(void) 33{ 34 // GCC currently allows this (it has some fiarly new support for covariant return types and contravariant argument types). 35 // Since registerFunc: expects a Derived object as it's second argument, I don't know why this would be legal. 36 [Derived registerFunc: ExternFunc]; // expected-warning{{incompatible pointer types sending 'NSObject *(NSObject *, NSObject *)' to parameter of type 'FuncSignature *'}} 37} 38 39// rdar://10751015 40@protocol NSCopying @end 41@interface I 42- (void) Meth : (id <NSCopying>)aKey; // expected-note {{passing argument to parameter 'aKey' here}} 43@end 44 45@class ForwarClass; // expected-note 3 {{conformance of forward class ForwarClass to protocol NSCopying can not be confirmed}} 46 47ForwarClass *Test10751015 (I* pi, ForwarClass *ns_forward) { 48 49 [pi Meth : ns_forward ]; // expected-warning {{sending 'ForwarClass *' to parameter of incompatible type 'id<NSCopying>'}} 50 51 id <NSCopying> id_ns = ns_forward; // expected-warning {{initializing 'id<NSCopying>' with an expression of incompatible type 'ForwarClass *'}} 52 53 return id_ns; // expected-warning {{returning 'id<NSCopying>' from a function with incompatible result type 'ForwarClass *'}} 54} 55