res->local_variables = xbt_dict_new_homogeneous(NULL);
res->global_variables = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp);
res->types = xbt_dict_new_homogeneous(NULL);
res->local_variables = xbt_dict_new_homogeneous(NULL);
res->global_variables = xbt_dynar_new(sizeof(dw_variable_t), dw_variable_free_voidp);
res->types = xbt_dict_new_homogeneous(NULL);