Function createTemplateRef

packages/core/src/linker/template_ref.ts:130–140

(hostTNode: TNode, hostLView: LView)

 * @returns The TemplateRef instance or null if we can't create a TemplateRef on a given node type
 */
export function createTemplateRef<T>(hostTNode: TNode, hostLView: LView): TemplateRef<T> | null {
  if (hostTNode.type & TNodeType.Container) {
    ngDevMode && assertDefined(hostTNode.tView, 'TView must be allocated');
    return new TemplateRef(
      hostLView,
      hostTNode as TContainerNode,
      createElementRef(hostTNode, hostLView),
    );
  }
  return null;
}