On Wed, Mar 8, 2017 at 5:09 AM, Haravikk via swift-evolution <
swift-evolution@swift.org> wrote:
> willSet and didSet have their own distinct scope; they execute
> independently, however a switch statement is effectively a single scope
> because of the ability to use fallthrough to visit later cases.
>
A switch statement has a separate scope for every case, including default.
Example:
switch Int() {
case 0:
let m = "zero"
fallthrough
default:
Swift.print(m)
}
Result:
Playground execution failed: error: MyPlayground.playground:2:17: error:
use of unresolved identifier 'm'
Swift.print(m)
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