File: tentative-property-decl.m

package info (click to toggle)
llvm-toolchain-3.4 1%3A3.4.2-13
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 253,236 kB
  • ctags: 276,203
  • sloc: cpp: 1,665,580; ansic: 298,647; asm: 206,157; objc: 84,350; python: 73,119; sh: 23,466; perl: 5,679; makefile: 5,542; ml: 5,250; pascal: 2,467; lisp: 1,420; xml: 679; cs: 236; csh: 117
file content (47 lines) | stat: -rw-r--r-- 1,426 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
// RUN: %clang_cc1 -fsyntax-only -Weverything -verify %s
// rdar://11656982
/** Normally, a property cannot be both 'readonly' and having a "write" attribute
    (copy/retain/etc.). But, property declaration in primary class and protcols
    are tentative as they may be overridden into a 'readwrite' property in class 
    extensions. Postpone diagnosing such warnings until the class implementation 
    is seen.
*/

@interface Super {
}
@end

@class NSString;

@interface MyClass : Super
@property(nonatomic, copy, readonly) NSString *prop; // expected-warning {{property attributes 'readonly' and 'copy' are mutually exclusive}}
@property(nonatomic, copy, readonly) id warnProp; // expected-warning {{property attributes 'readonly' and 'copy' are mutually exclusive}}
@end

@interface MyClass ()
@property(nonatomic, copy, readwrite) NSString *prop;
@end

@implementation MyClass
@synthesize prop;
@synthesize warnProp;
@end


@protocol P
@property(nonatomic, copy, readonly) NSString *prop; // expected-warning {{property attributes 'readonly' and 'copy' are mutually exclusive}}
@property(nonatomic, copy, readonly) id warnProp; // expected-warning {{property attributes 'readonly' and 'copy' are mutually exclusive}}
@end

@interface YourClass : Super <P>
@end

@interface YourClass ()
@property(nonatomic, copy, readwrite) NSString *prop;
@end

@implementation YourClass 
@synthesize prop;
@synthesize warnProp;
@end