[swift-evolution] [Proposal draft] Use obtain let instead if let construction

[Carlos García]

I just realized my mistake in the example, I've corrected it

> On 08 Jan 2017, at 07:46, Carlos García <carlosypunto at gmail.com> wrote:
> 
> Hi Javier,
> 
> Maybe I’m not explained correctly in email. The change is not a "guard let”  replacement, instead it is a “if let” replacement.
> 
> Best,
> Carlos
> 
>> On 08 Jan 2017, at 05:45, Javier Soto <javier.api at gmail.com <mailto:javier.api at gmail.com>> wrote:
>> 
>> Based on your examples I think you were thinking about the "guard" keyword, instead of "if"?
>> 
>> `If let foo = bar else` is not a valid construction. `if let foo = bar { } else {}` may have been what you meant, but in this case it is clear that this is just like a regular if, combined with unwrapping an optional.
>> On Sat, Jan 7, 2017 at 7:12 PM thislooksfun via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> -1 from me, I think that it makes perfect sense the way it is.
>> 
>> More specifically, I read `if let safe = optional` as "if optional can be unwrapped into safe, then ..."
>> I think `obtain let` is more confusing, as it's not clear that it's a conditional from that keyword. Plus to me, "obtain" seems like it would be getting something from somewhere else, not always locally, maybe use an `unwrap` keyword in there somewhere, if you want it to be very clear what's happening?
>> 
>> -thislooksfun (tlf)
>> 
>>> On Jan 7, 2017, at 8:46 PM, Carlos García via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>>> 
>>> Hi all,
>>> 
>>> Here’s a draft proposal to change if let construction for obtain let. Proposal is at:
>>> https://github.com/carlosypunto/swift-evolution/blob/obtain-let-instead-if-let/proposals/XXXX-Use-obtain-let-instead-if-let-constructions.md <https://github.com/carlosypunto/swift-evolution/blob/obtain-let-instead-if-let/proposals/XXXX-Use-obtain-let-instead-if-let-constructions.md>
>>> 
>>> I would like to see what you think and get help with "Effect on ABI stability" and "Effect on API resilience" points
>>> 
>>> Carlos
>>> 
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>> 
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>> -- 
>> Javier Soto
> 

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