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comparison clang/test/SemaObjC/warn-direct-ivar-access.m @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children c4bab56944e8
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147:c2174574ed3a 150:1d019706d866
1 // RUN: %clang_cc1 -fsyntax-only -fobjc-arc -fobjc-runtime-has-weak -Wdirect-ivar-access -verify -Wno-objc-root-class %s
2 // rdar://6505197
3
4 __attribute__((objc_root_class)) @interface MyObject {
5 @public
6 id _myMaster;
7 id _isTickledPink; // expected-error {{existing instance variable '_isTickledPink' for property 'isTickledPink'}}
8 int _myIntProp;
9 }
10 @property(retain) id myMaster;
11 @property(assign) id isTickledPink; // expected-note {{property declared here}}
12 @property int myIntProp;
13 @end
14
15 @implementation MyObject
16
17 @synthesize myMaster = _myMaster;
18 @synthesize isTickledPink = _isTickledPink; // expected-note {{property synthesized here}}
19 @synthesize myIntProp = _myIntProp;
20
21 - (void) doSomething {
22 _myMaster = _isTickledPink; // expected-warning {{instance variable '_myMaster' is being directly accessed}} \
23 // expected-warning {{instance variable '_isTickledPink' is being directly accessed}}
24 }
25
26 - (id) init {
27 _myMaster=0;
28 return _myMaster;
29 }
30 - (void) dealloc { _myMaster = 0; }
31 @end
32
33 MyObject * foo ()
34 {
35 MyObject* p=0;
36 p.isTickledPink = p.myMaster; // ok
37 p->_isTickledPink = (*p)._myMaster; // expected-warning {{instance variable '_isTickledPink' is being directly accessed}} \
38 // expected-warning {{instance variable '_myMaster' is being directly accessed}}
39 if (p->_myIntProp) // expected-warning {{instance variable '_myIntProp' is being directly accessed}}
40 p->_myIntProp = 0; // expected-warning {{instance variable '_myIntProp' is being directly accessed}}
41 return p->_isTickledPink; // expected-warning {{instance variable '_isTickledPink' is being directly accessed}}
42 }
43
44 @interface ITest32 {
45 @public
46 id ivar;
47 }
48 @end
49
50 id Test32(__weak ITest32 *x) {
51 __weak ITest32 *y;
52 x->ivar = 0; // expected-error {{dereferencing a __weak pointer is not allowed}}
53 return y ? y->ivar // expected-error {{dereferencing a __weak pointer is not allowed}}
54 : (*x).ivar; // expected-error {{dereferencing a __weak pointer is not allowed}}
55 }
56
57 // rdar://13142820
58 @protocol PROTOCOL
59 @property (copy, nonatomic) id property_in_protocol;
60 @end
61
62 __attribute__((objc_root_class)) @interface INTF <PROTOCOL>
63 @property (copy, nonatomic) id foo;
64 - (id) foo;
65 @end
66
67 @interface INTF()
68 @property (copy, nonatomic) id foo1;
69 - (id) foo1;
70 @end
71
72 @implementation INTF
73 - (id) foo { return _foo; }
74 - (id) property_in_protocol { return _property_in_protocol; } // expected-warning {{instance variable '_property_in_protocol' is being directly accessed}}
75 - (id) foo1 { return _foo1; }
76 @synthesize property_in_protocol = _property_in_protocol;
77 @end
78