constructor">Parsetree</span>.expression<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Pexp_function</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Parsetree</span>.case&nbsp;list<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Pexp_fun</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Asttypes</span>.arg_label&nbsp;*&nbsp;<span class="constructor">Parsetree</spa