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6 lines
325 B
6 lines
325 B
5 years ago
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An Objective-C block uses `weakSelf` more than once. This could lead to
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unexpected behaviour. Even if `weakSelf` is not nil in the first use, it could
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be nil in the following uses since the object that `weakSelf` points to could be
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freed anytime. One should assign it to a strong pointer first, and then use it
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in the block.
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