Function ɵɵelementStart

packages/core/src/render3/instructions/element.ts:92–133

(
  index: number,
  name: string,
  attrsIndex?: number | null,
  localRefsIndex?: number,
)

 * @codeGenApi
 */
export function ɵɵelementStart(
  index: number,
  name: string,
  attrsIndex?: number | null,
  localRefsIndex?: number,
): typeof ɵɵelementStart {
  const lView = getLView();

  ngDevMode && assertTNodeCreationIndex(lView, index);

  const tView = lView[TVIEW];
  const adjustedIndex = index + HEADER_OFFSET;
  const tNode = tView.firstCreatePass
    ? directiveHostFirstCreatePass(
        adjustedIndex,
        lView,
        TNodeType.Element,
        name,
        findDirectiveDefMatches,
        getBindingsEnabled(),
        attrsIndex,
        localRefsIndex,
      )
    : (tView.data[adjustedIndex] as TElementNode);

  // If the node is a component host and we have a tracing service, we need to wrap the init logic.
  if (isComponentHost(tNode)) {
    const tracingService = lView[ENVIRONMENT].tracingService;

    if (tracingService && tracingService.componentCreate) {
      const def = tView.data[tNode.directiveStart + tNode.componentOffset] as ComponentDef<{}>;

      return tracingService.componentCreate(getComponentName(def), () => {
        initializeElement(index, name, lView, tNode, localRefsIndex);
        return ɵɵelementStart;
      });
    }
  }

  initializeElement(index, name, lView, tNode, localRefsIndex);
  return ɵɵelementStart;
}

function initializeElement(
  index: number,