e_should_nest s</code> should be true when we are going one deeper into a call-chain, ie when lt_level should be bumper in the next loc_trace_elem, and similarly for <code>sink_should_nest</code></p></div></div><div class="odoc-spec"><div class="spec value" id="val-of_source" class="anchored"><a href="#val-of_source" class="anchor"></a><code><span><span class="keyword">val</span> of_source : <span><a href="Source/index.html#type-t">Source.t</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t