Function multiViewProvidersFactoryResolver

packages/core/src/render3/di_setup.ts:336–368

* Use this with `multi` `viewProviders`. * * This factory knows how to concatenate itself with the existing `multi` `providers`.

(
  this: NodeInjectorFactory,
  _: undefined,
  _flags: InternalInjectFlags | undefined,
  _tData: TData,
  lView: LView,
  tNode: TDirectiveHostNode,
)

 * This factory knows how to concatenate itself with the existing `multi` `providers`.
 */
function multiViewProvidersFactoryResolver(
  this: NodeInjectorFactory,
  _: undefined,
  _flags: InternalInjectFlags | undefined,
  _tData: TData,
  lView: LView,
  tNode: TDirectiveHostNode,
): any[] {
  const factories = this.multi!;
  let result: any[];
  if (this.providerFactory) {
    const componentCount = this.providerFactory.componentProviders!;
    const multiProviders = getNodeInjectable(
      lView,
      lView[TVIEW],
      this.providerFactory!.index!,
      tNode,
    );
    // Copy the section of the array which contains `multi` `providers` from the component
    result = multiProviders.slice(0, componentCount);
    // Insert the `viewProvider` instances.
    multiResolve(factories, result);
    // Copy the section of the array which contains `multi` `providers` from other directives
    for (let i = componentCount; i < multiProviders.length; i++) {
      result.push(multiProviders[i]);
    }
  } else {
    result = [];
    // Insert the `viewProvider` instances.
    multiResolve(factories, result);
  }
  return result;
}

/**
 * Maps an array of factories into an array of values.