valuated following four simple rules:
      </p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
            A binary operator, except <code class="computeroutput"><span class="special">-&gt;*</span></code>
            will be lazily evaluated when <span class="emphasis"><em>at least</em></span> one of its
            operands is an actor object (see <a class="link" href="../actor.html" title="Actor">Actor</a>).
          </li>
<li class="listitem">
            Unary operato