[swift-evolution] [Pitch] Guard/Catch

[Greg Parker]

> On Jul 10, 2017, at 1:51 AM, David Hart via swift-evolution <swift-evolution at swift.org> wrote:
> 
> I know we can’t do much about it now, but if optional binding had used the same syntax as it does in pattern matching, we wouldn’t be having this discussion:
> 
> guard let x = try doSomething() catch {
>     // handle error
> }
> 
> guard let x? = doSomething() else {
>     // handle when nil
> }

We tried pattern-matching syntax in `if let` a while ago. It was unbelievably unpopular. We changed it back.


-- 
Greg Parker     gparker at apple.com <mailto:gparker at apple.com>     Runtime Wrangler


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