<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=""><meta http-equiv="content-type" content="text/html; charset=utf-8" class=""><div dir="auto" class=""><div class="">On Jun 6, 2017, at 10:55, Brent Royal-Gordon via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><blockquote type="cite" class=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Jun 4, 2017, at 6:56 AM, Daryle Walker via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><div class=""><div style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div class=""><br class=""></div></div></div></blockquote><blockquote type="cite" class=""><div class=""><div style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div class="">in which at least one is dubious in value (#2, since a lot of times the common type would be “Any”),</div></div></div></blockquote><div class=""><br class=""></div><div class="">Yes, the subscript would sometimes be `Any`, or `CustomStringConvertible`, or `AnyHashable`, or a combination like `AnyHashable & Codable`. So what? Even `Any` is a useful type sometimes.</div></div></blockquote><br class=""><div class="">FWIW, I made a similar comment in a similar thread, and IIRC the notion was generally frowned upon. <a href="https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160208/009540.html" class="">https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160208/009540.html</a></div><div class=""><br class=""></div><div class="">Perhaps optimizations made over the past — wow, 1.25 years — have addressed Jordan’s concern about a “<span style="background-color: rgb(255, 255, 255);" class=""><span style="white-space: pre-wrap;" class="">needless amount of extra work for the compiler”?</span></span></div><div class=""><br class=""></div><div class="">Also, I thought we’d decided this was out of scope for now? Am I thinking of something else, or are we just talking about it anyway, for funsies?</div><div class=""><br class=""></div><div class=""><span style="white-space: pre-wrap; background-color: rgb(255, 255, 255);" class="">- Dave Sweeris</span></div></div></body></html>