Function serializeInjector

packages/core/src/debug/ai/serialized_di_graph.ts:71–119

(injector: Injector)

 * Serializes an injector and its children/providers into a tree.
 */
export function serializeInjector(injector: Injector): SerializedInjector {
  const metadata = getInjectorMetadata(injector);

  if (metadata?.type === 'null') {
    return {
      name: 'Null Injector',
      type: 'null',
      providers: [],
      children: [],
    };
  }

  // Only attempt to get providers for types supported by getInjectorProviders.
  let allProviders: SerializedProvider[] = [];
  if (metadata?.type === 'element' || metadata?.type === 'environment') {
    allProviders = getInjectorProviders(injector).map((record) => {
      return {
        token: record.token,
        value: injector.get(record.token, null, {optional: true, self: true}),
      };
    });
  }

  if (metadata?.type === 'element') {
    const tNode = getNodeInjectorTNode(injector as NodeInjector);
    const viewProvidersCount = tNode
      ? tNode.providerIndexes >> TNodeProviderIndexes.CptViewProvidersCountShift
      : 0;

    const viewProviders = allProviders.slice(0, viewProvidersCount);
    const resolvedProviders = allProviders.slice(viewProvidersCount);

    return {
      name: injector.constructor.name,
      type: 'element',
      providers: resolvedProviders,
      viewProviders,
      children: [],
      hostElement: metadata.source as HTMLElement,
    };
  }

  return {
    name: metadata?.source ?? injector.constructor.name ?? 'Unknown Injector',
    type: 'environment', // Fallback for other injector types
    providers: allProviders,
    children: [],
  };
}