55 lines
2.0 KiB
Objective-C
55 lines
2.0 KiB
Objective-C
// RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s
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@protocol NSObject
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@end
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@interface NSObject <NSObject> {
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}
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@end
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@interface NSString : NSObject
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@end
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void __setRetained(id *ivar, id value, NSObject **o) {
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*ivar = value;
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}
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static NSString *_logProcessPrefix = 0;
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void func() {
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__setRetained(&_logProcessPrefix, _logProcessPrefix, &_logProcessPrefix);
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}
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@implementation NSObject (ScopeAdditions)
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+ (void)setObjectLogProcessPrefix:(NSString *)processPrefix {
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__setRetained(&_logProcessPrefix, processPrefix, &_logProcessPrefix);
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}
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@end
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@class Derived;
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NSObject *ExternFunc (NSObject *filePath, NSObject *key);
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typedef id FuncSignature (NSObject *arg1, Derived *arg2);
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@interface Derived: NSObject
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+ (void)registerFunc:(FuncSignature *)function; // expected-note{{passing argument to parameter 'function' here}}
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@end
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void foo(void)
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{
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// GCC currently allows this (it has some fiarly new support for covariant return types and contravariant argument types).
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// Since registerFunc: expects a Derived object as it's second argument, I don't know why this would be legal.
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[Derived registerFunc: ExternFunc]; // expected-warning{{incompatible function pointer types sending 'NSObject *(NSObject *, NSObject *)' to parameter of type 'FuncSignature *' (aka 'id (*)(NSObject *, Derived *)')}}
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}
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// rdar://10751015
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@protocol NSCopying @end
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@interface I
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- (void) Meth : (id <NSCopying>)aKey; // expected-note {{passing argument to parameter 'aKey' here}}
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@end
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@class ForwarClass; // expected-note 3 {{conformance of forward class 'ForwarClass' to protocol 'NSCopying' can not be confirmed}}
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ForwarClass *Test10751015 (I* pi, ForwarClass *ns_forward) {
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[pi Meth : ns_forward ]; // expected-warning {{sending 'ForwarClass *' to parameter of incompatible type 'id<NSCopying>'}}
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id <NSCopying> id_ns = ns_forward; // expected-warning {{initializing 'id<NSCopying>' with an expression of incompatible type 'ForwarClass *'}}
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return id_ns; // expected-warning {{returning 'id<NSCopying>' from a function with incompatible result type 'ForwarClass *'}}
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}
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