llvm-for-llvmta/tools/clang/test/SemaObjCXX/arc-unavailable-for-weakref.mm

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// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -verify %s
// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-weak -verify %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, P1>)strong1; // expected-error {{cast of weak-unavailable object of type 'NOWEAK<P,P1> *' to a __weak object of type '__weak id<P,P1>'}} \
// expected-error {{explicit ownership qualifier on cast result has no effect}}
}