l</span> compare_compiler : <span><a href="#type-compiler">compiler</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-compiler">compiler</a> <span class="arrow">&#45;&gt;</span></span> int</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-capture"><a href="#val-capture" class="anchor"></a><code><span><span class="keyword">val</span> capture : <span><a href="#type-compiler">compiler</a> <span class="arrow">&#45;&gt;</span></span> <span>prog:string <sp