1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -verify -Wno-objc-root-class %s |
2 | // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-weak -verify -Wno-objc-root-class %s |
3 | // rdar://9693477 |
4 | |
5 | __attribute__((objc_arc_weak_reference_unavailable)) |
6 | @interface NSOptOut1072 // expected-note {{class is declared here}} |
7 | @end |
8 | |
9 | @interface sub : NSOptOut1072 @end // expected-note 2 {{class is declared here}} |
10 | |
11 | int main() { |
12 | __weak sub *w2; // expected-error {{class is incompatible with __weak references}} |
13 | |
14 | __weak NSOptOut1072 *ns1; // expected-error {{class is incompatible with __weak references}} |
15 | |
16 | id obj; |
17 | |
18 | ns1 = (__weak sub *)obj; // expected-error {{assignment of a weak-unavailable object to a __weak object}} \ |
19 | // expected-error {{class is incompatible with __weak references}} \ |
20 | // expected-error {{explicit ownership qualifier on cast result has no effect}} |
21 | } |
22 | |
23 | // rdar://9732636 |
24 | __attribute__((objc_arc_weak_reference_unavailable)) |
25 | @interface NOWEAK |
26 | + (id) new; |
27 | @end |
28 | |
29 | NOWEAK * Test1() { |
30 | NOWEAK * strong1 = [NOWEAK new]; |
31 | __weak id weak1; |
32 | weak1 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
33 | |
34 | __weak id weak2 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
35 | return (__weak id)strong1; // expected-error {{cast of weak-unavailable object of type 'NOWEAK *' to a __weak object of type '__weak id'}} \ |
36 | // expected-error {{explicit ownership qualifier on cast result has no effect}} |
37 | } |
38 | |
39 | @protocol P @end |
40 | @protocol P1 @end |
41 | |
42 | NOWEAK<P, P1> * Test2() { |
43 | NOWEAK<P, P1> * strong1 = 0; |
44 | __weak id<P> weak1; |
45 | weak1 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
46 | |
47 | __weak id<P> weak2 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
48 | return (__weak id<P>)strong1; // expected-error {{cast of weak-unavailable object of type 'NOWEAK<P,P1> *' to a __weak object of type '__weak id<P>'}} \ |
49 | // expected-error {{explicit ownership qualifier on cast result has no effect}} |
50 | } |
51 | |
52 | // rdar://10535245 |
53 | __attribute__((objc_arc_weak_reference_unavailable)) |
54 | @interface NSFont |
55 | @end |
56 | |
57 | @interface I |
58 | { |
59 | } |
60 | @property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}} |
61 | @end |
62 | |
63 | @implementation I // expected-note {{when implemented by class I}} |
64 | @synthesize font = _font; |
65 | @end |
66 | |
67 | // rdar://13676793 |
68 | @protocol MyProtocol |
69 | @property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}} |
70 | @end |
71 | |
72 | @interface I1 <MyProtocol> |
73 | @end |
74 | |
75 | @implementation I1 // expected-note {{when implemented by class I1}} |
76 | @synthesize font = _font; |
77 | @end |
78 | |
79 | @interface Super |
80 | @property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}} |
81 | @end |
82 | |
83 | |
84 | @interface I2 : Super |
85 | @end |
86 | |
87 | @implementation I2 // expected-note {{when implemented by class I2}} |
88 | @synthesize font = _font; |
89 | @end |
90 | |
91 | __attribute__((objc_arc_weak_reference_unavailable(1))) // expected-error {{'objc_arc_weak_reference_unavailable' attribute takes no arguments}} |
92 | @interface I3 |
93 | @end |
94 | |
95 | int I4 __attribute__((objc_arc_weak_reference_unavailable)); // expected-error {{'objc_arc_weak_reference_unavailable' attribute only applies to Objective-C interfaces}} |
96 | |