Function multiFactoryAdd

packages/core/src/render3/di_setup.ts:296–305

* Add a factory in a multi factory. * @returns Index at which the factory was inserted.

(
  multiFactory: NodeInjectorFactory,
  factory: () => any,
  isComponentProvider: boolean,
)

 * @returns Index at which the factory was inserted.
 */
function multiFactoryAdd(
  multiFactory: NodeInjectorFactory,
  factory: () => any,
  isComponentProvider: boolean,
): number {
  if (isComponentProvider) {
    multiFactory.componentProviders!++;
  }
  return multiFactory.multi!.push(factory) - 1;
}

/**
 * Returns the index of item in the array, but only in the begin to end range.