href="../IR/Typ/index.html#type-t">IR.Typ.t</a>)</span> option</span>;</code></td></tr><tr id="type-trans_state.opaque_exp" class="anchored"><td class="def field"><a href="#type-trans_state.opaque_exp" class="anchor"></a><code>opaque_exp : <span><span>(<a href="../IR/Exp/index.html#type-t">IR.Exp.t</a> * <a href="../IR/Typ/index.html#type-t">IR.Typ.t</a>)</span> option</span>;</code></td></tr><tr id="type-trans_state.is_fst_arg_objc_instance_method_call" class="anchored"><td class="def field"><a href="#type