<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 Jan 9, 2016, at 12:53 AM, Andrew Bennett via swift-evolution &lt;<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>&gt; wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">I'd like to discuss adding a @pure keyword, and see what it requires and how possible it is to &nbsp;include.</div><div class=""><br class=""></div>I'd like to use the annotation @pure on functions, methods and closures.</div></div></blockquote><br class=""></div><div>FYI, this has come up before, please catch up on the thread:</div><div><a href="https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151214/003684.html" class="">https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151214/003684.html</a></div><div><br class=""></div><div><a href="https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151221/003900.html" class="">https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151221/003900.html</a></div><div><br class=""></div><div>-Chris</div><br class=""></body></html>