<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 26 Jul 2016, at 19:52, Chris Lattner via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Proposal Link: <a href="https://github.com/apple/swift-evolution/blob/master/proposals/0131-anyhashable.md" class="">https://github.com/apple/swift-evolution/blob/master/proposals/0131-anyhashable.md</a><br class=""><br class="">The review of "SE-0131: Add AnyHashable to the standard library" ran from Active review July 23…25. The proposal has been *accepted*.<br class=""><br class="">The feedback on this proposal was quite positive. A few questions were raised, but were answered on-thread. Thank you to Dmitri Gribenko for writing this proposal and driving this discussion forward.<br class=""><br class="">-Chris Lattner<br class="">Review Manager<br class=""><br class=""><br class="">_______________________________________________<br class="">swift-evolution mailing list<br class=""><a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a><br class="">https://lists.swift.org/mailman/listinfo/swift-evolution<br class=""></div></div></blockquote></div><br class=""><div class="">I didn’t get an answer about making the wrapping implicit. Is something like that at all possible?</div><div class=""><br class=""></div><div class="">When I look at the changes required, this looks like a massive readability regression - especially given that AnyHashable is pretty much a hack around incomplete existential support anyway:</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 255, 255);" class=""> </span><span class="pl-k" style="box-sizing: border-box; color: rgb(167, 29, 93); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">let</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 255, 255);" class=""> _ </span><span class="pl-k" style="box-sizing: border-box; color: rgb(167, 29, 93); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">=</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 255, 255);" class=""> NSError(domain: </span><span class="pl-s" style="box-sizing: border-box; color: rgb(24, 54, 145); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;"><span class="pl-pds" style="box-sizing: border-box;">"</span>myDomain<span class="pl-pds" style="box-sizing: border-box;">"</span></span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 255, 255);" class="">, code: </span><span class="pl-c1" style="box-sizing: border-box; color: rgb(0, 134, 179); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">4</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 255, 255);" class="">, </span></blockquote><blockquote type="cite" class=""><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 236, 236);" class="">- userInfo: [</span><span class="pl-s" style="box-sizing: border-box; color: rgb(24, 54, 145); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;"><span class="pl-pds" style="box-sizing: border-box;">"</span>a<span class="pl-pds" style="box-sizing: border-box;">"</span></span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 236, 236);" class="">:</span><span class="pl-c1" style="box-sizing: border-box; color: rgb(0, 134, 179); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">1</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 236, 236);" class="">,</span><span class="pl-s" style="box-sizing: border-box; color: rgb(24, 54, 145); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;"><span class="pl-pds" style="box-sizing: border-box;">"</span>b<span class="pl-pds" style="box-sizing: border-box;">"</span></span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 236, 236);" class="">:</span><span class="pl-c1" style="box-sizing: border-box; color: rgb(0, 134, 179); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">2</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 236, 236);" class="">,</span><span class="pl-s" style="box-sizing: border-box; color: rgb(24, 54, 145); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;"><span class="pl-pds" style="box-sizing: border-box;">"</span>c<span class="pl-pds" style="box-sizing: border-box;">"</span></span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 236, 236);" class="">:</span><span class="pl-c1" style="box-sizing: border-box; color: rgb(0, 134, 179); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">3</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 236, 236);" class="">])</span></blockquote><blockquote type="cite" class=""><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">+ userInfo: [AnyHashable(</span><span class="pl-s" style="box-sizing: border-box; color: rgb(24, 54, 145); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;"><span class="pl-pds" style="box-sizing: border-box;">"</span>a<span class="pl-pds" style="box-sizing: border-box;">"</span></span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">):</span><span class="pl-c1" style="box-sizing: border-box; color: rgb(0, 134, 179); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">1</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">,</span></blockquote><blockquote type="cite" class=""><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">+ AnyHashable(</span><span class="pl-s" style="box-sizing: border-box; color: rgb(24, 54, 145); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;"><span class="pl-pds" style="box-sizing: border-box;">"</span>b<span class="pl-pds" style="box-sizing: border-box;">"</span></span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">):</span><span class="pl-c1" style="box-sizing: border-box; color: rgb(0, 134, 179); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">2</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">,</span></blockquote><blockquote type="cite" class=""><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">+ AnyHashable(</span><span class="pl-s" style="box-sizing: border-box; color: rgb(24, 54, 145); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;"><span class="pl-pds" style="box-sizing: border-box;">"</span>c<span class="pl-pds" style="box-sizing: border-box;">"</span></span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">):</span><span class="pl-c1" style="box-sizing: border-box; color: rgb(0, 134, 179); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre;">3</span><span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; white-space: pre; background-color: rgb(234, 255, 234);" class="">])</span></blockquote><br class=""></div><div class="">The proposal itself claims that "AnyHashable itself is additive. Source-breaking changes are discussed in SE-0116.”, but that is not true. I don’t see any discussion of these source-breaking changes in SE-0116 - which in fact delegates discussion of the specific AnyHashable design back to this proposal.</div><div class=""><br class=""></div><div class="">Karl</div><div class=""><blockquote type="cite" class=""></blockquote></div><div class=""><blockquote type="cite" class=""></blockquote></div></body></html>