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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_hkd365uhqhjfu92cm6htpmt4j5, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
svoid addWeakChangeListener(IHasChangeListeners src, ChangeTriggerable target) {
  addWeakChangeListener(src, target, o -> o.change());
}

svoid <A> addWeakChangeListener(IHasChangeListeners src, A target, IVF1<A> action) {
  if (src == null || action == null || target == null) ret;
  
  var ref = weakRef(target);
  src.onChange(r {
    var target = ref!;
    if (target == null)
      src.removeChangeListener(this);
    else
      action.get(target);
  });
}