[swift-evolution] Mark UnicodeScalar.utf16 and UnicodeScalar.UTF16View as public

[Robert Widmann]

+1.  This is a bug fix in my mind, evolution is merely a formality.

Ship it

~Robert Widmann

2016/09/22 18:59、Eli Perkins via swift-evolution <swift-evolution at swift.org> のメッセージ:

> Hey all!
> 
> I picked up SR-2627 (https://bugs.swift.org/browse/SR-2627) from the Swift JIRA project. The ticket states:
> 
> > UnicodeScalar.utf16 does not have access modifier and therefore is internal but should be public, as well as UnicodeScalar.UTF16View.
> 
> The ticket is written in a way that makes it seem as though this change would match the behavior of APIs such as the UTF accessors on `String`.
> 
> Additionally, `UnicodeScalar.utf16` and `Unicodescalar.UTF16View` seem to be created in `UnicodeScalar.swift`, but not used elsewhere, indicating that these properties were intended to be exposed to developers as part of the stdlib.
> 
> After submitting a pull request to implement this (https://github.com/apple/swift/pull/4929, Maxim Moiseev and Michael Gottesman mentioned that since this does modify the public API, a proposal should go through swift-evolution to address this.
> 
> I wanted to kick off the discussion here and get feedback from the mailing list.
> 
> Looking forward to chatting about this!
> Eli Perkins
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