Function getParentInjectorIndex

packages/core/src/render3/util/injector_utils.ts:22–35

(parentLocation: RelativeInjectorLocation)

}

export function getParentInjectorIndex(parentLocation: RelativeInjectorLocation): number {
  if (ngDevMode) {
    assertNumber(parentLocation, 'Number expected');
    assertNotEqual(parentLocation as any, -1, 'Not a valid state.');
    const parentInjectorIndex = parentLocation & RelativeInjectorLocationFlags.InjectorIndexMask;

    assertGreaterThan(
      parentInjectorIndex,
      HEADER_OFFSET,
      'Parent injector must be pointing past HEADER_OFFSET.',
    );
  }
  return parentLocation & RelativeInjectorLocationFlags.InjectorIndexMask;
}

export function getParentInjectorViewOffset(parentLocation: RelativeInjectorLocation): number {
  return parentLocation >> RelativeInjectorLocationFlags.ViewOffsetShift;