performSelector may cause a leak because its selector is unknown
2013-12-28 14:41 三戒1993 阅读(121) 评论(0) 编辑 收藏 举报第一种解决办法:
As a workaround until the compiler allows overriding the warning, you can use the runtime
objc_msgSend(_controller, NSSelectorFromString(@"someMethod"));
instead of
[_controller performSelector:NSSelectorFromString(@"someMethod")];
You'll have to
#import <objc/message.h>
第二种:
To ignore the error only in the file with the perform selector, add a #pragma as follows:
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
第三种:
#define SUPPRESS_PERFORM_SELECTOR_LEAK_WARNING(code) \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Warc-performSelector-leaks\"") \
code; \
_Pragma("clang diagnostic pop") \
SUPPRESS_PERFORM_SELECTOR_LEAK_WARNING(
return [_target performSelector:_action withObject:self]
);
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