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/* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, November 2010. */
/* { dg-do compile } */
#include <objc/objc.h>
/* Test that if you have a property declared in a class and a
sub-class, the types match (unless it's a readonly property, in
which case a "specialization" is enough). */
@protocol MyProtocolA
- (void) doNothingA;
@end
@protocol MyProtocolB
- (void) doNothingB;
@end
@interface MyRootClass
{
Class isa;
}
@end
@interface MySubClass1 : MyRootClass
@end
@interface MySubClass2 : MyRootClass
@end
@interface MySubClass3 : MyRootClass <MyProtocolA>
@end
@interface MySubClass4 : MySubClass1
@end
/* Now, the test. */
@interface MyClass : MyRootClass
{ }
@property (assign) id <MyProtocolA> a; /* { dg-message "originally specified here" } */
@property int b; /* { dg-message "originally specified here" } */
@property float c; /* { dg-message "originally specified here" } */
@property (assign) MyRootClass *d; /* { dg-message "originally specified here" } */
@property (assign) MySubClass1 *e; /* { dg-message "originally specified here" } */
@property (assign, readonly) MySubClass1 *f; /* { dg-message "originally specified here" } */
@property (assign) MySubClass3 *g; /* { dg-message "originally specified here" } */
@property (assign, readonly) MySubClass3 *h; /* { dg-message "originally specified here" } */
@end
/* The following are all OK because they are identical. */
@interface MyClass2 : MyClass
{ }
@property (assign) id a;
@property int b;
@property float c;
@property (assign) MyRootClass *d;
@property (assign) MySubClass1 *e;
@property (assign, readonly) MySubClass1 *f;
@property (assign) MySubClass3 *g;
@property (assign, readonly) MySubClass3 *h;
@end
/* The following are not OK. */
@interface MyClass3 : MyClass
{ }
@property (assign) MySubClass1 *a; /* { dg-warning "type of property .a. conflicts with previous declaration" } */
@property float b; /* { dg-warning "type of property .b. conflicts with previous declaration" } */
@property int c; /* { dg-warning "type of property .c. conflicts with previous declaration" } */
@property (assign) id d; /* { dg-warning "type of property .d. conflicts with previous declaration" } */
@property (assign) MyRootClass *e; /* { dg-warning "type of property .e. conflicts with previous declaration" } */
@property (assign, readonly) MyRootClass *f; /* { dg-warning "type of property .f. conflicts with previous declaration" } */
@property (assign) MySubClass2 *g; /* { dg-warning "type of property .g. conflicts with previous declaration" } */
@property (assign, readonly) MySubClass2 *h; /* { dg-warning "type of property .h. conflicts with previous declaration" } */
@end
/* The following are OK. */
@interface MyClass4 : MyClass
{ }
@property (assign, readonly) MySubClass4 *f;
@property (assign, readonly) MySubClass3 <MyProtocolB> *h;
@end
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