I couldn't disagree more. Generic programming is a far more advanced concept than arrays and dictionaries, and learners should be able to use them without contending with angle brackets they don't understand.<br><br>Fundamentally, even for an experienced user of the language, working with Collections and Sequences requires more consideration than working with arrays. It's not just a matter of how these things are spelled. It seems like you want to punish users who don't have the time or inclination to genericize their algorithms by making them write more, in the hopes that if you make working with arrays difficult enough, people will switch to generic containers. That's bonkers.<br><br><div class="gmail_quote"><div dir="ltr">On Sat, May 28, 2016 at 14:38 Haravikk via swift-evolution <<a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><br><div><div><blockquote type="cite"><div>On 27 May 2016, at 15:31, plx via swift-evolution <<a href="mailto:swift-evolution@swift.org" target="_blank">swift-evolution@swift.org</a>> wrote:</div><div><div style="word-wrap:break-word"><div><br></div></div></div></blockquote><blockquote type="cite"><div style="word-wrap:break-word"><div> protocol Sequence {</div></div></blockquote></div></div></div><div style="word-wrap:break-word"><div><div><blockquote type="cite"><div style="word-wrap:break-word"><div> typealias of<E> == S: Self where S.Iterator.Element == E</div><div> }</div><div><br></div></div></blockquote></div></div></div><div style="word-wrap:break-word"><div><div><blockquote type="cite"><div style="word-wrap:break-word"><div> // sequence-accepting variant</div><div> func doSomething<S:Sequence.of<Foo>>(values: S) { … }</div></div></blockquote></div></div></div><div style="word-wrap:break-word"><div><div><blockquote type="cite"><div style="word-wrap:break-word"></div></blockquote><br></div><div>This is a nice alternative; would it actually need to be declared in the angle brackets? Could it be done as:</div><div><br></div><div><span style="white-space:pre-wrap"> </span><span style="font-family:Menlo;font-size:11px;color:rgb(187,44,162)">func</span><span style="font-family:Menlo;font-size:11px"> doSomething(values:</span><span style="font-family:Menlo;font-size:11px;color:rgb(112,61,170)">Sequence</span><span style="font-family:Menlo;font-size:11px">.</span><span style="font-family:Menlo;font-size:11px;color:rgb(112,61,170)">of</span><span style="font-family:Menlo;font-size:11px"><</span><span style="font-family:Menlo;font-size:11px;color:rgb(112,61,170)">Foo</span><span style="font-family:Menlo;font-size:11px">>) { … }</span></div><div><br></div><div>As long as it would work the same as a generic declaration this could be a good way to do it, either that or a SequenceOf type alias as mentioned.</div></div><div><br></div><div><br></div><div>Still, I kind of feel like we need to do something with the array type shorthand, but I wonder if perhaps we could just get rid of it altogether, to prevent its use entirely? i.e- all instances of [Foo] can be replaced with Array<Foo>, but we would encourage the use of Sequence.of/SequenceOf/Collection.of/CollectionOf first wherever possible.</div><div><br></div><div>As more types become available that are ArrayLiteralConvertible it seems like we should discourage restriction of a parameter to Array except when a developer explicitly chooses it. This problem will come up with the Dictionary type shorthand as well if Swift gets some kind of Map protocol to abstract it, and we don’t even have a Set-specific syntax so it seems like it may be fairer to remove these shorthands.</div></div>_______________________________________________<br>
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