def_enum = container_of(field, const struct definition_enum, p);
decl_enum = def_enum->declaration;
if (get_int_signedness(&def_enum->integer->p)) {
def_enum = container_of(field, const struct definition_enum, p);
decl_enum = def_enum->declaration;
if (get_int_signedness(&def_enum->integer->p)) {