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i < routes.length; i++) {\n const childRoute = routes[i]\n childRoute.parent = route\n cacheRoutes(routesByName, childRoute, childRoute.children)\n }\n }\n}\n\n/**\n * Create a function to generate urls by route names.\n */\nfunction generateUrls(router: UniversalRouter, options?: GenerateUrlsOptions): GenerateUrl {\n if (!router) {\n throw new ReferenceError('Router is not defined')\n }\n\n const routesByName = new Map<string, Route>()\n const regexpByRoute = new Map<Route, { toPath: PathFunction<UrlParams>; keys: Keys }>()\n const opts: GenerateUrlsOptions = { encode: encodeURIComponent, ...options }\n return (routeName: string, params?: UrlParams): string => {\n let route = routesByName.get(routeName)\n if (!route) {\n routesByName.clear()\n regexpByRoute.clear()\n cacheRoutes(routesByName, router.root, router.root.children)\n\n route = routesByName.get(routeName)\n if (!route) {\n throw new Error(`Route \"${routeName}\" not found`)\n }\n }\n\n let regexp = regexpByRoute.get(route)\n if (!regexp) {\n let fullPath = ''\n let rt: Route | null | undefined = route\n while (rt) {\n const path = Array.isArray(rt.path) ? rt.path[0] : rt.path\n if (path) {\n fullPath = path + fullPath\n }\n rt = rt.parent\n }\n const tokens = parse(fullPath, opts)\n const toPath = tokensToFunction(tokens, opts)\n const keys: Keys = Object.create(null)\n for (let i = 0; i < tokens.length; i++) {\n const token = tokens[i]\n if (typeof token !== 'string') {\n keys[token.name] = true\n }\n }\n regexp = { toPath, keys }\n regexpByRoute.set(route, regexp)\n }\n\n let url = router.baseUrl + regexp.toPath(params) || '/'\n\n if (opts.stringifyQueryParams && params) {\n const queryParams: UrlParams = {}\n const keys = Object.keys(params)\n for (let i = 0; i < keys.length; i++) {\n const key = keys[i]\n if (!regexp.keys[key]) {\n queryParams[key] = params[key]\n }\n }\n const query = opts.stringifyQueryParams(queryParams)\n if (query) {\n url += query.charAt(0) === '?' ? query : `?${query}`\n }\n }\n\n return url\n }\n}\n\nexport default generateUrls\n"]} |