SE-0263: Add a String Initializer with Access to Uninitialized Storage

[Michael_Ilseman]

• What is your evaluation of the proposal?

+1, this aligns precisely with long-term String goals as mentioned in:

@Michael_Ilseman

String initializers

Like SE-0245 , String should provide an initializer that can invoke a given user’s closure on uninitialized UTF-8 capacity. Afterwards, String will still have to validate, and potentially error-correct, the contents.

• Is the problem being addressed significant enough to warrant a change to Swift?

Yes

• Does this proposal fit well with the feel and direction of Swift?

Yes

• If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?

N/A

• How much effort did you put into your review? A glance, a quick reading, or an in-depth study?

In-depth study.