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 11int 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 29NOWEAK * 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 42NOWEAK<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 95int I4 __attribute__((objc_arc_weak_reference_unavailable)); // expected-error {{'objc_arc_weak_reference_unavailable' attribute only applies to Objective-C interfaces}} 96