[swift-evolution] [Review] SE-0115: Rename Literal Syntax Protocols

Anton Zhilin antonyzhilin at gmail.com
Sat Jul 2 08:04:36 CDT 2016

Matthew Johnson via swift-evolution <swift-evolution at ...> writes:

> Sent from my iPad
> > On Jul 2, 2016, at 6:11 AM, Anton Zhilin via swift-evolution <swift-
evolution <at> swift.org> wrote:
> > 
> > -1 from me. I suggest to wait until we get generic protocols
> > in Swift 4, then we can use the following:
> > 
> > protocol From<T> {
> >    init(_ from: T)
> > }
> This is extremely unlikely to happen.  Generic protocols and multiple 
conformances are listed as unlikely
> in the generics manifesto.  This *exact* use case is cited as the 
usual motivation for this feature and
> deemed insufficient.  
> If you want to see generic protocols and multiple conformances I think 
you're going to need to provide
> extremely compelling use cases in order for that proposal to be 
considered.  And I would be surprised to see
> it make Swift 4 even if you do find sufficient motivation.

This became much more likely to happen after Brent suggested counter-
arguments and (I don't rembmer exactly, but) some core team members 
didn't seem to mind.

The proposal:

Brent's counterarguments:

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