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3a50a9fe74
When applied to out-parameters, the attributes specify the expected lifetime of the written-into object. Additionally, introduce OSReturnsRetainedOn(Non)Zero attributes, which specify that an ownership transfer happens depending on a return code. Differential Revision: https://reviews.llvm.org/D56292 llvm-svn: 350942
16 lines
710 B
Plaintext
16 lines
710 B
Plaintext
// RUN: %clang_cc1 -fsyntax-only -verify -fblocks %s
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struct S {};
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@interface I
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@property (readonly) S* prop __attribute__((os_returns_retained));
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- (S*) generateS __attribute__((os_returns_retained));
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- (void) takeS:(S*) __attribute__((os_consumed)) s;
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@end
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typedef __attribute__((os_returns_retained)) id (^blockType)(); // expected-warning{{'os_returns_retained' attribute only applies to functions, Objective-C methods, Objective-C properties, and parameters}}
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__auto_type b = ^ id (id filter) __attribute__((os_returns_retained)) { // expected-warning{{'os_returns_retained' attribute only applies to functions, Objective-C methods, Objective-C properties, and parameters}}
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return filter;
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};
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