Function normalizeFormArgs

packages/forms/signals/src/util/normalize_form_args.ts:18–42

(
  args: any[],
)

 * Extracts the model, schema, and options from the arguments passed to `form()`.
 */
export function normalizeFormArgs<TModel>(
  args: any[],
): [
  WritableSignal<TModel>,
  SchemaOrSchemaFn<TModel> | undefined,
  (FormOptions<TModel> & {adapter?: FieldAdapter}) | undefined,
] {
  let model: WritableSignal<TModel>;
  let schema: SchemaOrSchemaFn<TModel> | undefined;
  let options: (FormOptions<TModel> & {adapter?: FieldAdapter}) | undefined;

  if (args.length === 3) {
    [model, schema, options] = args;
  } else if (args.length === 2) {
    if (isSchemaOrSchemaFn(args[1])) {
      [model, schema] = args;
    } else {
      [model, options] = args;
    }
  } else {
    [model] = args;
  }

  return [model, schema, options];
}