<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000">It would be handy if a callback could be marked as required with an optional descriptive message i.e</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000">class BackgroundTask {</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000"> func run(end: @required("You must call end otherwise iOS will penalise your app for being a bad citizen") () -> Void) </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000">}</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000">That was the developer can comunicate the bad things that can happen if this callback isn't called such as iOS peanlizing them for not ending a background task or perhaps memory leaks caused by clean up code unable to be triggered.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;color:#000000"><br></div><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">
<p><b><font color="#cc0000">___________________________________</font></b></p><p><b>James</b></p><p><b><font color="#cc0000"><a href="mailto:james@supmenow.com" target="_blank" style="cursor: url("chrome-extension://ledmjlnkdlappilhaaihfhanlpdjjalm/rockhand.png"), auto;">james@supmenow.com</a>⎥<a href="http://supmenow.com" target="_blank">supmenow.com</a></font></b></p><p><b><font size="2">Sup</font></b></p><p><b><font size="2">Runway East
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