I think the feature should stay but we need community guidelines on when and when not to use them.
*___________________________________* *James⎥Head Of CEO* *[email protected] <[email protected]>⎥supmenow.com <http://supmenow.com>* *Sup* *Runway East * *10 Finsbury Square* *London* * EC2A 1AF * On Thu, Mar 24, 2016 at 4:13 PM, William Dillon via swift-evolution < [email protected]> wrote: > On Mar 24, 2016, at 7:18 AM, Kurt Werle via swift-evolution < > [email protected]> wrote: > > Coming from ruby, I'm quite fond of trailing closures. I couldn't really > give you a concrete reason why - putting them in the ()'s really isn't that > big a deal. But I'll say that I move them outside every single time... > > I will say that your examples are the most trivial possible and that the > more complex the closure (describing context variables and return types, > throws, etc) the uglier it seem to me to put it inside parens. > > > Agree. > > Another thing I like about trailing closures is that it allows me to make > custom constructs that feel more like a part of the language. For example, > I really love this extension for NSLock that I have: > > extension NSLock { > func protect(action: (Void) -> Void) { > self.lock() > action() > self.unlock() > } > } > > Now, whenever I need to use my lock, I can just do: > > peersLock.protect { > outputString += "\(self.peers.count) peers:\n" > for (_, peer) in self.peers { > outputString += "\(peer)\n" > } > } > > To me, it looks cleaner to me to not have this paren dangling around at > the end. On this one I’d definitely say that if you don’t like it, don’t > use it. I don’t *think* that you’re forced to use it anywhere. It’s a > hard sell to take it away from everyone. > > - Will > > _______________________________________________ > swift-evolution mailing list > [email protected] > https://lists.swift.org/mailman/listinfo/swift-evolution > >
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