<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></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 Apr 20, 2017, at 8:13 AM, John Holdsworth 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=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">I was going to have a look at creating a new proposal for this but I see there already</div><div class=""><a href="https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160425/015977.html" class="">is one</a> and the <a href="https://github.com/apple/swift/pull/3866" class="">start of an implementation</a>. Is there any chance this is in the pipeline?</div></div></div></blockquote><br class=""></div><div>We haven't had time to invest in implementing this yet. Since it's a purely additive feature, the acceptance of the proposal still stand, and we would accept a good implementation of it at any time. It does however require some relatively deep refactoring of the modeling of Self types across the AST and SIL layers, which is currently very superficial, in order to successfully implement, which is part of why we haven't gotten around to it yet.</div><div><br class=""></div><div>-Joe</div><br class=""></body></html>