Shih-wei Liao | ea28516 | 2010-06-04 12:34:56 -0700 | [diff] [blame] | 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 |
| 10 | void __setRetained(id *ivar, id value, NSObject **o) { |
| 11 | *ivar = value; |
| 12 | } |
| 13 | static NSString *_logProcessPrefix = 0; |
| 14 | void 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 | |
| 25 | NSObject *ExternFunc (NSObject *filePath, NSObject *key); |
| 26 | typedef 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 | |
| 32 | void 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 | } |
Stephen Hines | c568f1e | 2014-07-21 00:47:37 -0700 | [diff] [blame] | 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 | |
| 47 | ForwarClass *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 | } |