Function getInjectorIndex

packages/core/src/render3/di.ts:234–249

(tNode: TNode, lView: LView)

}

export function getInjectorIndex(tNode: TNode, lView: LView): number {
  if (
    tNode.injectorIndex === -1 ||
    // If the injector index is the same as its parent's injector index, then the index has been
    // copied down from the parent node. No injector has been created yet on this node.
    (tNode.parent && tNode.parent.injectorIndex === tNode.injectorIndex) ||
    // After the first template pass, the injector index might exist but the parent values
    // might not have been calculated yet for this instance
    lView[tNode.injectorIndex + NodeInjectorOffset.PARENT] === null
  ) {
    return -1;
  } else {
    ngDevMode && assertIndexInRange(lView, tNode.injectorIndex);
    return tNode.injectorIndex;
  }
}

/**
 * Finds the index of the parent injector, with a view offset if applicable. Used to set the