{"ast_node_type":"variable","tokens":[{"end":76,"kind":"keyword","start":0,"text":"&&"}]}
                    && let Some(len) = Const::Ty(self.tcx.types.usize, *len)
                    && let ty::Array(_, len) = operand_ty.kind()
                        .try_eval_scalar_int(self.tcx, self.typing_env)