[swift-evolution] [Proposal] [Discussion] Explicit Toll-Free Conversions

[Charlie Monroe]

> On Mar 23, 2017, at 6:41 AM, Slava Pestov via swift-evolution <swift-evolution at swift.org> wrote:
> 
> 
>> On Mar 22, 2017, at 10:35 PM, Robert Widmann via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> 
>> Alternatives considered
>> 
>> Do nothing and continue to accept this implicit conversion.
> 
> One alternative would be to import CFArray as a typealias for NSArray, etc, erasing the distinction between the two types completely. I did suggest this to Jordan at one point and he pointed out some problems, but I don’t remember them now. Hopefully Jordan can chime in.

With CFArray you can create a non-retaining array without creating a weak-wrapper for each object. While it's a less likely scenario, I've used in the past (until I created a weak array to be used in Swift).


> 
> Slava
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