>this</span><span class="p">[</span><span class="nx">node</span><span class="p">.</span><span class="nx">type</span><span class="p">](</span><span class="nx">node</span><span class="p">,</span><span class="w"> </span><span class="nx">accumulator</span><span class="p">)</span>
<span class="w">    </span><span class="p">}</span>
<span class="w">  </span><span class="p">}</span>

<span class="w">  </span><span class="c1">// Recurse for anything interesting within the node.</span>
<span class="w">  </span><span