Function createRouterState

packages/router/src/create_router_state.ts:20–33

(
  routeReuseStrategy: RouteReuseStrategy,
  curr: RouterStateSnapshot,
  prevState: RouterState,
)

import {TreeNode} from './utils/tree';

export function createRouterState(
  routeReuseStrategy: RouteReuseStrategy,
  curr: RouterStateSnapshot,
  prevState: RouterState,
): {newlyCreatedRoutes: Set<ActivatedRoute>; state: RouterState} {
  const newlyCreatedRoutes = new Set<ActivatedRoute>();
  const root = createNode(
    routeReuseStrategy,
    curr._root,
    prevState ? prevState._root : undefined,
    newlyCreatedRoutes,
  );
  return {newlyCreatedRoutes, state: new RouterState(root, curr)};
}

function createNode(
  routeReuseStrategy: RouteReuseStrategy,