 value anchored" id="val-to_loc_trace"><a href="#val-to_loc_trace" class="anchor"></a><code><span><span class="keyword">val</span> to_loc_trace : 
  <span><span class="optlabel">?desc_of_source</span>:<span>(<span><a href="Source/index.html#type-t">Source.t</a> <span class="arrow">&#45;&gt;</span></span> string)</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span class="optlabel">?source_should_nest</span>:<span>(<span><a href="Source/index.html#type-t">Source.t</a> <span class="arrow">&#45;&gt