Function loadComponentRenderer

packages/core/src/render3/instructions/shared.ts:689–704

(
  currentDef: DirectiveDef<any> | null,
  tNode: TNode,
  lView: LView,
)

 * instead of the current renderer (see the componentSyntheticHost* instructions).
 */
export function loadComponentRenderer(
  currentDef: DirectiveDef<any> | null,
  tNode: TNode,
  lView: LView,
): Renderer {
  // TODO(FW-2043): the `currentDef` is null when host bindings are invoked while creating root
  // component (see packages/core/src/render3/component.ts). This is not consistent with the process
  // of creating inner components, when current directive index is available in the state. In order
  // to avoid relying on current def being `null` (thus special-casing root component creation), the
  // process of creating root component should be unified with the process of creating inner
  // components.
  if (currentDef === null || isComponentDef(currentDef)) {
    lView = unwrapLView(lView[tNode.index])!;
  }
  return lView[RENDERER];
}

/** Handles an error thrown in an LView. */
export function handleUncaughtError(lView: LView, error: any): void {