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1// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -verify -Wno-objc-root-class %s2// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-weak -verify -Wno-objc-root-class %s3 4__attribute__((objc_arc_weak_reference_unavailable))5@interface NSOptOut1072 // expected-note {{class is declared here}}6@end7 8@interface sub : NSOptOut1072 @end // expected-note 2 {{class is declared here}}9 10int main(void) {11 __weak sub *w2; // expected-error {{class is incompatible with __weak references}}12 13 __weak NSOptOut1072 *ns1; // expected-error {{class is incompatible with __weak references}}14 15 id obj;16 17 ns1 = (__weak sub *)obj; // expected-error {{assignment of a weak-unavailable object to a __weak object}} \18 // expected-error {{class is incompatible with __weak references}} \19 // expected-error {{explicit ownership qualifier on cast result has no effect}}20}21 22__attribute__((objc_arc_weak_reference_unavailable))23@interface NOWEAK24+ (id) new;25@end26 27NOWEAK * Test1(void) {28 NOWEAK * strong1 = [NOWEAK new];29 __weak id weak1;30 weak1 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}}31 32 __weak id weak2 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}}33 return (__weak id)strong1; // expected-error {{cast of weak-unavailable object of type 'NOWEAK *' to a __weak object of type '__weak id'}} \34 // expected-error {{explicit ownership qualifier on cast result has no effect}}35}36 37@protocol P @end38@protocol P1 @end39 40NOWEAK<P, P1> * Test2(void) {41 NOWEAK<P, P1> * strong1 = 0;42 __weak id<P> weak1;43 weak1 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}}44 45 __weak id<P> weak2 = strong1; // expected-error {{assignment of a weak-unavailable object to a __weak object}}46 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>'}} \47 // expected-error {{explicit ownership qualifier on cast result has no effect}}48}49 50__attribute__((objc_arc_weak_reference_unavailable))51@interface NSFont52@end53 54@interface I55{56}57@property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}}58@end59 60@implementation I // expected-note {{when implemented by class I}}61@synthesize font = _font;62@end63 64@protocol MyProtocol65@property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}}66@end67 68@interface I1 <MyProtocol>69@end70 71@implementation I1 // expected-note {{when implemented by class I1}}72@synthesize font = _font;73@end74 75@interface Super76@property (weak) NSFont *font; // expected-error {{synthesizing __weak instance variable of type 'NSFont *', which does not support weak references}}77@end78 79 80@interface I2 : Super81@end82 83@implementation I2 // expected-note {{when implemented by class I2}}84@synthesize font = _font;85@end86 87__attribute__((objc_arc_weak_reference_unavailable(1))) // expected-error {{'objc_arc_weak_reference_unavailable' attribute takes no arguments}}88@interface I389@end90 91int I4 __attribute__((objc_arc_weak_reference_unavailable)); // expected-error {{'objc_arc_weak_reference_unavailable' attribute only applies to Objective-C interfaces}}92