[swift-evolution] Proposal: label-only constructors

[Drew Crawford]

> On Dec 13, 2015, at 7:13 AM, ilya <ilya.nikokoshev at gmail.com> wrote:
> 
> You can easily call a private parametrized init from a class function though. 


Sure, but we're just shuffling the deck.  We've gone from a bad public API to a bad private API.

Actually, it's worse, because we now have BOTH a bad private API AND a bad public API.  There is a reason that NSData.dataWithData(...) is a Swift compile error.

The (ab)use of class functions as constructors is a holdover from ObjC times.  If you want to make an instance in Swift, you should type ClassName( and see what autocomplete suggests; you should not have to read through the documentation of class functions to see if they are secretly constructors that have been filed at the wrong shelf in the library.
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