{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"self.visit_value(&val.transmute(self.ecx.layout_of(*base)?,"}]}
                self.visit_value(&val.transmute(self.ecx.layout_of(*base)?, self.ecx)?)?;
                // First check that the base type is valid
                // When you extend this match, make sure to also add tests to