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