structor">Asttypes</span>.loc&nbsp;*&nbsp;<span class="constructor">Parsetree</span>.expression<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Pexp_pack</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Parsetree</span>.module_expr<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Pexp_open</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Parsetree</span>.open_declara