Glad to know the answer. And thank you, Slava and Daniel. Zhao Xin
On Wed, Jul 12, 2017 at 7:53 AM, Daniel Dunbar <daniel_dun...@apple.com> wrote: > > On Jul 11, 2017, at 3:55 PM, Zhao Xin via swift-users < > swift-users@swift.org> wrote: > > For example, I have an async query, I pass it an `@escaping > resultHandler`. If there is any results, the handler will run. However, if > the result is empty, the `@escaping resultHandler` will never run. > > Is there any memory leak or something will happen if the `@escaping > resultHandler` never runs? > > > No, assuming your handler has been written to not participate in a retain > cycle (for example, ensuring you use [weak self] if appropriate). > > - Daniel > > Zhao Xin > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users > > >
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