Method isController

packages/core/scanner.ts:749–751

* @param metatype * @returns `true` if `metatype` is annotated with the `@Controller()` decorator.

(metatype: Type<any>)

   * @returns `true` if `metatype` is annotated with the `@Controller()` decorator.
   */
  private isController(metatype: Type<any>): boolean {
    return !!Reflect.getMetadata(CONTROLLER_WATERMARK, metatype);
  }

  /**
   * @param metatype