<div dir="ltr">Would this require a swift-evolution review, since it's technically an API change? (removing the initializer requirement is something I am also interested in seeing...)<div><br></div><div>Austin</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jul 6, 2016 at 7:05 PM, Dave Abrahams via swift-users <span dir="ltr"><<a href="mailto:swift-users@swift.org" target="_blank">swift-users@swift.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=""><br>
on Wed Jul 06 2016, Tim Vermeulen <swift-users-AT-swift.org> wrote:<br>
<br>
> RangeReplaceableCollection has three initialisers: init(), init(_:)<br>
> and init(repeating:count:). The latter two are implemented using the<br>
> empty initialiser. But why are these initialisers part of this<br>
> particular protocol? As far as I can tell, no other methods of this<br>
> protocol depend on these initialisers. The requirement of the empty<br>
> initialiser makes it impossible to have a collection conform to this<br>
> protocol that needs additional data for its initialisation.<br>
<br>
</span>This is an excellent point, and I think it may have been an oversight<br>
that we made this a requirement. Please open a bug and/or file a radar.<br>
<a href="https://bugs.swift.org/secure/Dashboard.jspa" rel="noreferrer" target="_blank">https://bugs.swift.org/secure/Dashboard.jspa</a><br>
<br>
Thanks!<br>
<span class="im HOEnZb"><br>
> For instance, I was making an array that works with any Strideable<br>
> indices, not just integers. A startIndex is needed for its<br>
> initialisation, so I can’t really conform it to<br>
> RangeReplaceableCollection. If I do it anyways (with a fatalError() in<br>
> the required empty initialiser) everything seems to work just fine,<br>
> except for the protocol’s three initialisers.<br>
><br>
> Perhaps these initialisers should be moved to a (possible new)<br>
> different protocol?<br>
<br>
<br>
</span><span class="HOEnZb"><font color="#888888">--<br>
Dave<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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