[swift-evolution] [swift-evolution-announce] [Review] SE-0099: Restructuring Condition Clauses
Thorsten Seitz
tseitz42 at icloud.com
Sun May 29 10:11:38 CDT 2016
> Am 28.05.2016 um 22:35 schrieb Chris Lattner <clattner at apple.com>:
>
>
>> On May 28, 2016, at 12:07 PM, Thorsten Seitz <tseitz42 at icloud.com> wrote:
>>
>> What about requiring `let` before each binding and `case` before each pattern?
>>
>> guard case let x = a, case let y = b, let z = c, x == y else { … }
>>
>> Now `let z = c` can only be a let-binding and not a pattern matching clause.
>
> Yes, that would be enough to solve the ambiguity. The problem with that is that it eliminates a commonality with var/let declarations, which can declare multiple variables.
var/let declarations are sufficiently different from let-bindings IMO that this commonality could be dropped.
-Thorsten
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