property-ambiguous-synthesis.m source code [clang_source_code/test/SemaObjC/property-ambiguous-synthesis.m]

1	// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
2	// rdar://13075400
3
4	@protocol FooAsID
5	@property (assign) id foo; // expected-note 2 {{it could also be property of type 'id' declared here}} \\
6	// expected-warning {{property of type 'id' was selected for synthesis}}
7	@end
8
9	@protocol FooAsDouble
10	@property double foo; // expected-warning 2 {{property of type 'double' was selected for synthesis}} \
11	// expected-note {{it could also be property of type 'double' declared here}}
12	@end
13
14	@protocol FooAsShort
15	@property short foo; // expected-note {{it could also be property of type 'short' declared here}}
16	@end
17
18	@interface NSObject @end
19
20	@interface AnObject : NSObject<FooAsDouble,FooAsID>
21	@end
22
23	@interface Sub : AnObject
24	@end
25
26	@implementation Sub
27	@synthesize foo=_MyFooIvar; // expected-note {{property synthesized here}}
28	@end
29
30
31	@interface AnotherObject : NSObject<FooAsDouble, FooAsID,FooAsDouble, FooAsID, FooAsDouble,FooAsID>
32	@end
33
34	@implementation AnotherObject
35	@synthesize foo=_MyFooIvar; // expected-note {{property synthesized here}}
36	@end
37
38
39	@interface YetAnotherObject : NSObject<FooAsID,FooAsShort, FooAsDouble,FooAsID, FooAsShort>
40	@end
41
42	@implementation YetAnotherObject
43	@synthesize foo=_MyFooIvar; // expected-note {{property synthesized here}}
44	@end
45
46	double func(YetAnotherObject *object) {
47	return [object foo]; // expected-error {{returning 'id' from a function with incompatible result type 'double'}}
48	}
49

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