[swift-evolution] Remove forEach?
stephen.celis at gmail.com
Wed Dec 9 06:40:22 CST 2015
> On Dec 8, 2015, at 5:13 PM, Joe Groff via swift-evolution <swift-evolution at swift.org> wrote:
> Another direction you might take this is to make it a type annotation on the function type, like throws, so forEach has a type like this:
> func forEach(body: (Element) breaks -> ())
> and a closure that `breaks` has nonlocal behavior for break/continue/return (and is implied to be noescape and void-returning, I guess).
This is really interesting. Ruby provides similar functionality with its lambda vs. proc, but a type annotation is much more understandable. It could also imply @noescape automatically:
func forEach(@canbreak body: Element -> Void)
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