<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><br class=""><blockquote type="cite" class=""><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Of course, if you’re worried about the performance costs associated with that extra method call, you might want to include a keyword, such as “observable”, and only generate the method call(s) if that keyword is on the property.</span></div></blockquote></div>I strongly agree that Swift should have/keep a possibility to create properties with no performance penalty — but I guess comfort is more important, so I'd rather make observable the default and offer a possibility to disable it.<div class=""><br class=""></div><div class="">Tino</div></body></html>