<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="">`try` is a run-time call.<div class=""><br class=""></div><div class="">-- E</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Mar 28, 2016, at 10:51 PM, Jeff Kelley <<a href="mailto:slaunchaman@gmail.com" class="">slaunchaman@gmail.com</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="">Why would it have to compile under iOS? The “import Cocoa” bit is behind an else clause.<div class=""><br class=""></div><div class=""><br class=""><div class="">
<div style="font-family: Helvetica; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="font-family: Helvetica; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="font-family: Helvetica; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; " class=""><div class="">Jeff Kelley</div><div class=""><br class=""></div><div class=""><a href="mailto:SlaunchaMan@gmail.com" class="">SlaunchaMan@gmail.com</a> | <a href="https://twitter.com/SlaunchaMan" class="">@SlaunchaMan</a> | <a href="http://jeffkelley.org/" class="">jeffkelley.org</a></div></div></span></div></div></div>
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<br class=""><div style="" class=""><blockquote type="cite" class=""><div class="">On Mar 29, 2016, at 12:44 AM, Erica Sadun <<a href="mailto:erica@ericasadun.com" class="">erica@ericasadun.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On Mar 28, 2016, at 10:37 PM, Jeff Kelley via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:<br class=""><blockquote type="cite" class=""><br class="">This might be crazy, but we could also reuse try here:<br class=""><br class="">import Foundation<br class="">try import UIKit {<br class=""><span class="Apple-tab-span" style="white-space:pre"> </span>// UIKit Code<br class="">}<br class="">else try import Cocoa<br class=""><span class="Apple-tab-span" style="white-space:pre"> </span>// Cocoa Code<br class="">}<br class=""><br class="">This would attempt to import UIKit and if it succeeded, run the code in the closure.<br class=""><br class=""></blockquote><br class="">The problem with your approach is that the Cocoa code would have to compile under iOS and <br class="">I'm afraid that's a no-go. Build-configuration tests enable entire blocks of code to be removed<br class="">from compilation.<br class=""><br class="">-- E<br class=""><br class=""></div></div></blockquote></div><br class=""></div></div></div></blockquote></div><br class=""></div></body></html>