Function findViaNativeElement

packages/core/src/render3/context_discovery.ts:233–242

* Locates the element within the given LView and returns the matching index

(lView: LView, target: RElement)

 * Locates the element within the given LView and returns the matching index
 */
function findViaNativeElement(lView: LView, target: RElement): number {
  const tView = lView[TVIEW];
  for (let i = HEADER_OFFSET; i < tView.bindingStartIndex; i++) {
    if (unwrapRNode(lView[i]) === target) {
      return i;
    }
  }

  return -1;
}

/**
 * Locates the next tNode (child, sibling or parent).