Function isBuiltInAccessor

packages/forms/src/directives/shared.ts:379–383

(valueAccessor: ControlValueAccessor)

}

export function isBuiltInAccessor(valueAccessor: ControlValueAccessor): boolean {
  // Check if a given value accessor is an instance of a class that directly extends
  // `BuiltInControlValueAccessor` one.
  return Object.getPrototypeOf(valueAccessor.constructor) === BuiltInControlValueAccessor;
}

export function syncPendingControls(
  form: AbstractControl,