licy</h2>
<p> The action policy has only one function for handling semantic actions:</p>
<pre>
    <code><span class=keyword>struct </span><span class=identifier>action_policy
    </span><span class=special>{
        </span><span class=keyword>template </span><span class=special>&lt;</span><span class=keyword>typename </span><span class=identifier>ActorT</span><span class=special>, </span><span class=keyword>typename </span><span class=identifier>AttrT</span><span class=special>, </span><span class=keyword>