[swift-evolution] Proposal: Pattern Matching Partial Function (#111)

[Maximilian Hünenberger]

I'm open to this topic. Looking for more community feedback...

In my opinion it should be either the more verbose form or the concise one.

Just like parameters in closures: You can use shorthand argument names ($0, $1, $2,...) or parameter names.

> Am 04.02.2016 um 15:18 schrieb Craig Cruden <ccruden at novafore.com>:
> 
> I originally had them mutually exclusive but there was pushback and the fact that no harm would be done by mixing them - I did not see the reason why not to allow them.
> 
> You could have a couple cases each with several lines of code then a value, and then a few that are just key/value mappings….  
> 
> 
>> On 2016-02-04, at 21:14:58, Maximilian Hünenberger <m.huenenberger at me.com> wrote:
>> 
>> Should we allow mixing "case" and "cases"?
>> 
>> I don't think so since a "cases" between several "case"'s is not recognizable enough.
>> 
>> With the current grammar "cases" is also allowed after "case" labels:
>> 
>> Example (this is currently allowed):
>> 
>> match(3) {
>>   case 1: "one"
>>   case 2: "two"
>>   cases 3: "three", 4: "four"
>>   default: "undefined"
>> }
>