<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=""><div><blockquote type="cite" class=""><div class="">On Aug 24, 2016, at 9:51 PM, Xiaodi Wu <<a href="mailto:xiaodi.wu@gmail.com" class="">xiaodi.wu@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">On Wed, Aug 24, 2016 at 9:47 PM, Xiaodi Wu <span dir="ltr" class=""><<a href="mailto:xiaodi.wu@gmail.com" target="_blank" class="">xiaodi.wu@gmail.com</a>></span> wrote:<br class=""><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="">Works on Linux :)</div></blockquote><div class=""><br class=""></div><div class="">And besides, on any platform where `type(of: bar) != NSString`, why should you expect `bar really_is NSString == true`? Isn't bar *not really* NSString?</div></div></div></div></div></blockquote><br class=""></div>Because the pitch was for a version of ‘is’ which lacks the Objective-C bridging. The ‘is’ keyword matches subclasses of the type you specify as well as the type itself.<div class=""><br class=""></div><div class="">Charles</div><div class=""><br class=""></div></body></html>