| // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -verify -Wno-objc-root-class %s |
| // rdar://9693477 |
| |
| __attribute__((objc_arc_weak_reference_unavailable)) |
| @interface NSOptOut1072 // expected-note {{class is declared here}} |
| @end |
| |
| @interface sub : NSOptOut1072 @end // expected-note 2 {{class is declared here}} |
| |
| int main() { |
| __weak sub *w2; // expected-error {{class is incompatible with __weak references}} |
| |
| __weak NSOptOut1072 *ns1; // expected-error {{class is incompatible with __weak references}} |
| |
| id obj; |
| |
| ns1 = (__weak sub *)obj; // expected-error {{assignment of a weak-unavailable object to a __weak object}} \ |
| // expected-error {{class is incompatible with __weak references}} \ |
| // expected-error {{explicit ownership qualifier on cast result has no effect}} |
| } |
| |
| // rdar://9732636 |
| __attribute__((objc_arc_weak_reference_unavailable)) |
| @interface NOWEAK |
| + (id) new; |
| @end |
| |
| NOWEAK * Test1() { |
| NOWEAK * strong1 = [NOWEAK new]; |
| __weak id weak1; |
| weak1 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
| |
| __weak id weak2 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
| return (__weak id)strong1; // expected-error {{cast of weak-unavailable object of type 'NOWEAK *' to a __weak object of type '__weak id'}} \ |
| // expected-error {{explicit ownership qualifier on cast result has no effect}} |
| } |
| |
| @protocol P @end |
| @protocol P1 @end |
| |
| NOWEAK<P, P1> * Test2() { |
| NOWEAK<P, P1> * strong1 = 0; |
| __weak id<P> weak1; |
| weak1 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
| |
| __weak id<P> weak2 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}} |
| 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>'}} \ |
| // expected-error {{explicit ownership qualifier on cast result has no effect}} |
| } |
| |
| // rdar://10535245 |
| __attribute__((objc_arc_weak_reference_unavailable)) |
| @interface NSFont |
| @end |
| |
| @interface I |
| { |
| } |
| @property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}} |
| @end |
| |
| @implementation I // expected-note {{when implemented by class I}} |
| @synthesize font = _font; |
| @end |
| |
| // rdar://13676793 |
| @protocol MyProtocol |
| @property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}} |
| @end |
| |
| @interface I1 <MyProtocol> |
| @end |
| |
| @implementation I1 // expected-note {{when implemented by class I1}} |
| @synthesize font = _font; |
| @end |
| |
| @interface Super |
| @property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}} |
| @end |
| |
| |
| @interface I2 : Super |
| @end |
| |
| @implementation I2 // expected-note {{when implemented by class I2}} |
| @synthesize font = _font; |
| @end |
| |
| __attribute__((objc_arc_weak_reference_unavailable(1))) // expected-error {{'objc_arc_weak_reference_unavailable' attribute takes no arguments}} |
| @interface I3 |
| @end |
| |
| int I4 __attribute__((objc_arc_weak_reference_unavailable)); // expected-error {{'objc_arc_weak_reference_unavailable' attribute only applies to Objective-C interfaces}} |