<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="">Have you heard of the property behaviors proposal?<br class=""><div class="">
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<br class=""><div style=""><blockquote type="cite" class=""><div class="">Le 5 janv. 2016 à 08:48:03, James Campbell via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> a écrit :</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">When creating a lazy variable, maybe we should allow for default closures, i.e</div><div class=""><br class=""></div><div class="">lazy var userSession: UserSession</div><div class=""><br class=""></div><div class="">Which will construct that object for you</div><div class="">instead of having to do:</div><div class=""><br class=""></div><div class=""><div class="">lazy var object: MyObject {</div><p class=""><span class=""> </span><span class="">let</span><span class=""> userSession = </span><span class="">UserSession</span><span class="">()</span></p><p class=""><span class=""> </span><span class="">return</span><span class=""> userSession</span></p><p class=""><span class="">}()</span></p><p class="">If the initializer requires parameter values then as an extension of this we could pass them in psuedo C++ style:</p><p class="">lazy var object: UserSession(otherVariable) <br class=""></p><p class="">Potentially otherVariable in this case could be lazily processed, so that its the equivalent of:</p><div class=""><br class=""></div><div class=""><div class="">lazy var object: MyObject {</div><p class=""><span class=""> </span><span class="">let</span><span class=""> userSession = </span><span class="">UserSession</span><span class="">(</span>otherVariable)</p><p class=""><span class=""> </span><span class="">return</span><span class=""> userSession</span></p><p class=""><span class="">}()</span></p></div></div><div class=""><br class=""></div>-- <br class=""><div class="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div dir="ltr" class=""><div class=""><span style="font-size:16px;line-height:19.2px" class=""></span><span style="font-size:12.8px" class=""> Wizard</span><br class=""></div><div class=""><a href="mailto:james@supmenow.com" target="_blank" class="">james@supmenow.com</a></div><div class="">+44 7523 279 698</div></div></div></div></div></div>
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