  }</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;  </div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;  <span class="comment">// subflow join node</span></div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;  <span class="keywordflow">if</span>(node-&gt;_parent &amp;&amp; node-&gt;_successors.size() == 0) {</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;    os &lt;&lt; <sp