angular-cn/packages/forms/src/directives/control_container.ts

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

import {AbstractControlDirective} from './abstract_control_directive';
import {Form} from './form_interface';


/**
 * @description
 * A base class for directives that contain multiple registered instances of `NgControl`.
 * Only used by the forms module.
 *
 * @publicApi
 */
export abstract class ControlContainer extends AbstractControlDirective {
  /**
   * @description
   * The name for the control
   */
  // TODO(issue/24571): remove '!'.
  name !: string | number | null;

  /**
   * @description
   * The top-level form directive for the control.
   */
  get formDirective(): Form|null { return null; }

  /**
   * @description
   * The path to this group.
   */
  get path(): string[]|null { return null; }
}