20 lines
904 B
Mathematica
20 lines
904 B
Mathematica
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// RUN: %clang_cc1 -fsyntax-only -fobjc-runtime-has-weak -fobjc-arc -fblocks -Wreceiver-is-weak -verify %s
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// rdar://10225276
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@interface Test0
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- (void) setBlock: (void(^)(void)) block;
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- (void) addBlock: (void(^)(void)) block;
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- (void) actNow;
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@end
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void test0(Test0 *x) {
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__weak Test0 *weakx = x;
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[x addBlock: ^{ [weakx actNow]; }]; // expected-warning {{weak receiver may be unpredictably null in ARC mode}}
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[x setBlock: ^{ [weakx actNow]; }]; // expected-warning {{weak receiver may be unpredictably null in ARC mode}}
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x.block = ^{ [weakx actNow]; }; // expected-warning {{weak receiver may be unpredictably null in ARC mode}}
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[weakx addBlock: ^{ [x actNow]; }]; // expected-warning {{weak receiver may be unpredictably null in ARC mode}}
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[weakx setBlock: ^{ [x actNow]; }]; // expected-warning {{weak receiver may be unpredictably null in ARC mode}}
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weakx.block = ^{ [x actNow]; };
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}
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