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// RUN: %clang_cc1 -x objective-c++ -std=c++11 -fobjc-arc -fblocks -Wimplicit-retain-self -verify %s
// rdar://11194874
typedef void (^BlockTy)();
void noescapeFunc(__attribute__((noescape)) BlockTy);
void escapeFunc(BlockTy);
@interface Root @end
@interface I : Root
{
int _bar;
}
@end
@implementation I
- (void)foo{
^{
_bar = 3; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
}();
}
- (void)testNested{
noescapeFunc(^{
(void)_bar;
escapeFunc(^{
(void)_bar; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
noescapeFunc(^{
(void)_bar; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
});
(void)_bar; // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
});
(void)_bar;
});
}
- (void)testLambdaInBlock{
noescapeFunc(^{ [&](){ (void)_bar; }(); });
escapeFunc(^{ [&](){ (void)_bar; }(); }); // expected-warning {{block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior}}
}
- (BlockTy)testDeclType{
return ^{ decltype(_bar) i = 12; (void)i; };
}
@end
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