Function provideFirstSupported

packages/benchpress/src/web_driver_extension.ts:37–62

(childTokens: any[])

 */
export abstract class WebDriverExtension {
  static provideFirstSupported(childTokens: any[]): any[] {
    const res = [
      {
        provide: _CHILDREN,
        useFactory: (injector: Injector) => childTokens.map((token) => injector.get(token)),
        deps: [Injector],
      },
      {
        provide: WebDriverExtension,
        useFactory: (children: WebDriverExtension[], capabilities: {[key: string]: any}) => {
          let delegate: WebDriverExtension = undefined!;
          children.forEach((extension) => {
            if (extension.supports(capabilities)) {
              delegate = extension;
            }
          });
          if (!delegate) {
            throw new Error('Could not find a delegate for given capabilities!');
          }
          return delegate;
        },
        deps: [_CHILDREN, Options.CAPABILITIES],
      },
    ];
    return res;
  }

  gc(): Promise<any> {
    throw new Error('NYI');