react-view-router/esm/util.js

react-view-router

import "core-js/modules/es6.symbol.js";
import "core-js/modules/es7.object.get-own-property-descriptors.js";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
import _asyncToGenerator from "@babel/runtime/helpers/asyncToGenerator";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _regeneratorRuntime from "@babel/runtime/regenerator";
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
import "core-js/modules/es6.object.to-string.js";
import "core-js/modules/es6.promise.js";
import "core-js/modules/es6.array.filter.js";
import "core-js/modules/es6.array.map.js";
import "core-js/modules/es6.regexp.split.js";
import "core-js/modules/es6.regexp.replace.js";
import "core-js/modules/es7.array.includes.js";
import "core-js/modules/es6.regexp.match.js";
import "core-js/modules/es6.array.sort.js";
import "core-js/modules/es6.regexp.search.js";
import "core-js/modules/es6.regexp.constructor.js";
import React, { useState, useEffect } from 'react';
import config from './config';
import { RouteLazy, isPromise, isRouteLazy } from './route-lazy';
import { REACT_FORWARD_REF_TYPE, getGuardsComponent } from './route-guard';
import matchPath, { computeRootMatch } from './match-path';
import { RouterViewWrapper } from './router-view';
import { HistoryType, readonly } from './history';
import { hasOwnProp, copyOwnProperties, copyOwnProperty } from './history/utils';
var DEFAULT_STATE_NAME = '[root]';
function nextTick(cb, ctx) {
  // @ts-ignore
  // eslint-disable-next-line no-promise-executor-return
  return cb && new Promise(r => r()).then(() => ctx ? cb.call(ctx) : cb());
}
function ignoreCatch(fn, onCatch) {
  return function (...args) {
    try {
      // eslint-disable-next-line prefer-spread
      return fn.apply(this, args);
    } catch (ex) {
      onCatch ? onCatch(ex) : warn(ex);
    }
  };
}
function innumerable(obj, key, value, options = {
  configurable: true
}) {
  Object.defineProperty(obj, key, _objectSpread({
    value
  }, options));
  return obj;
}
function concatConfigRoutePath(routePath, parentPath) {
  if (routePath == null || routePath === '/') routePath = '';else if (routePath[0] !== '/') routePath = '/' + routePath;
  if (parentPath == null || parentPath === '/') parentPath = '';
  return parentPath + routePath || '/';
}
function getRoutePath(route) {
  if (!route || !route.path) return '/';
  return route.path;
}
function normalizeRoute(route, parent, options = {}) {
  if (route._normalized) route = route._normalized;
  var subpath = getRoutePath(route);
  var path = concatConfigRoutePath(subpath, parent && parent.path);
  var r = {
    path,
    subpath,
    depth: parent ? parent.depth + 1 : 0,
    components: {}
  };
  if (parent) innumerable(r, 'parent', parent);
  if (isFunction(route.children)) {
    r.children = isRouteChildrenNormalized(route.children) ? route.children : normalizeRouteChildrenFn(route.children);
  } else {
    innumerable(r, 'children', normalizeRoutes(route.children || [], r, options));
  }
  r.exact = route.exact !== undefined ? route.exact || false : Boolean(route.redirect || route.index || subpath === '/');
  r.components = _objectSpread(_objectSpread({}, route.components), {}, {
    default: route.component
  });
  Object.keys(r.components).forEach(key => {
    var comp = r.components[key];
    if (comp instanceof RouteLazy) {
      comp.updaters.push(c => {
        if (c && c.__children) {
          var children = c.__children || [];
          if (isFunction(children)) children = children(r) || [];
          innumerable(r, 'children', normalizeRoutes(children, r, options));
          // r.exact = !(r as ConfigRoute).children.length;
        }
        return r.components[key] = c;
      });
    }
  });
  var meta = route.meta || {};
  readonly(r, 'meta', () => meta);
  if (route.props) innumerable(r, 'props', normalizeProps(route.props));
  if (route.paramsProps) innumerable(r, 'paramsProps', normalizeProps(route.paramsProps));
  if (route.queryProps) innumerable(r, 'queryProps', normalizeProps(route.queryProps));
  innumerable(r, '_pending', {
    completeCallbacks: {}
  });
  innumerable(r, '_normalized', route);
  copyOwnProperties(r, route);
  return r;
}
function normalizeRoutes(routes, parent, options = {}) {
  var _normalized = getRoutePath(parent);
  if (!options.force && isNormalizedConfigRouteArray(routes) && routes._normalized === _normalized) {
    return routes;
  }
  if (routes) {
    routes = routes.map(route => route && normalizeRoute(route, parent, options)).filter(Boolean);
  } else {
    routes = [];
  }
  innumerable(routes, '_normalized', _normalized);
  return routes;
}
function walkRoutes(routes, walkFn, parent) {
  if (isFunction(routes)) routes = normalizeRoutes(routes(parent), parent);
  return routes.some((route, routeIndex) => {
    if (walkFn(route, routeIndex, routes)) return true;
    if (!route.children || !Array.isArray(route.children)) return;
    return walkRoutes(route.children, walkFn, route);
  });
}
function normalizePath(path) {
  var paths = path.split('/');
  if (paths.length > 2 && !paths[paths.length - 1]) paths.splice(paths.length - 1, 1);
  for (var i = paths.length - 1; i > -1; i--) {
    if (paths[i + 1] === '..') paths.splice(i, 2);else if (paths[i] === '.') paths.splice(i, 1);
  }
  return paths.join('/').replace(/\/{2,}/g, '/');
}
function normalizeRoutePath(path, route, append, basename = '') {
  if (isAbsoluteUrl(path)) return path;
  if (isRoute(route)) route = route.matched[route.matched.length - 1];
  if (!path || ['/', '#'].includes(path[0]) || !route) return normalizePath(basename + (path || ''));
  if (isMatchedRoute(route)) route = route.config;
  var parent = append || /^\.\//.test(path) ? route : route.parent || {
    path: ''
  };
  while (parent && path[0] !== '/') {
    path = `${parent.path}/${path}`;
    parent = route.parent;
  }
  if (basename && path[0] === '/') path = basename + path;
  return normalizePath(path);
}
function matchRoutes(routes, to, parent, options = {}) {
  var queryProps = options.queryProps;
  to = normalizeLocation(to, {
    queryProps
  });
  if (!to || to.path === '') return [];
  var _options$branch = options.branch,
    branch = _options$branch === void 0 ? [] : _options$branch,
    _options$level = options.level,
    level = _options$level === void 0 ? 0 : _options$level;
  routes = getRouteChildren(routes, parent);
  routes.some(route => {
    var match = route.path ? matchPath(to.path, route) : branch.length ? branch[branch.length - 1].match // use parent match
    : computeRootMatch(to.path); // use default "root" match

    if (match && route.index) {
      route = resolveIndex(route.index, routes);
      if (!route) return;
      to.pathname = to.path = route.path;
      match = matchPath(route.path, route);
    }
    if (!match) return;
    branch.push({
      route,
      match
    });
    if (route.children && (route.children.length || isFunction(route.children))) matchRoutes(route.children, to, route, {
      branch,
      level: level + 1,
      queryProps
    });
    return true;
  });
  if (!level && branch.length) {
    var lastRouteBranch = branch[branch.length - 1];
    branch.unmatchedPath = to.pathname.substr(lastRouteBranch.match.path.length, to.pathname.length);
  }
  return branch;
}
function normalizeLocation(to, options = {}) {
  var route = options.route,
    _options$append = options.append,
    append = _options$append === void 0 ? false : _options$append,
    _options$basename = options.basename,
    basename = _options$basename === void 0 ? '' : _options$basename,
    _options$mode = options.mode,
    mode = _options$mode === void 0 ? '' : _options$mode,
    resolvePathCb = options.resolvePathCb,
    queryProps = options.queryProps;
  if (!to || isPlainObject(to) && !to.path && !to.pathname) return null;
  if (to._routeNormalized) return to;
  if (isString(to)) {
    var searchs = to.match(/\?[^#]+/g) || [];
    var pathname = searchs.reduce((p, v) => p.replace(v, ''), to);
    var search = searchs.sort().reduce((p, v, i) => {
      if (!i) return v;
      var s = v.substr(1);
      return p + (s ? `&${s}` : '');
    }, '');
    to = {
      pathname,
      path: pathname,
      search,
      fullPath: to
    };
  }
  if (to.query) Object.keys(to.query).forEach(key => to.query[key] === undefined && delete to.query[key]);else if (to.search) to.query = config.parseQuery(to.search, queryProps);
  var isAbsolute = isAbsoluteUrl(to.pathname);
  if (isAbsolute && mode !== HistoryType.browser) {
    var hash = getCurrentPageHash(to.pathname);
    if (hash) {
      to.pathname = hash;
      isAbsolute = false;
    }
  }
  if (!isAbsolute) {
    var path = to.pathname || to.path;
    if (resolvePathCb) path = resolvePathCb(path, to);
    path = normalizeRoutePath(path, route, to.append || append, to.absolute || to.basename ? '' : basename) || '/';
    to.pathname = to.path = path;
  }
  if (to.basename == null && basename != null) to.basename = to.absolute ? '' : basename;
  readonly(to, 'search', function () {
    return config.stringifyQuery(this.query);
  });
  readonly(to, 'fullPath', function () {
    return `${this.path}${this.search || ''}` || '/';
  });
  if (!to.query) to.query = {};
  innumerable(to, '_routeNormalized', true);
  return to;
}
var _toString = Object.prototype.toString;
function isPlainObject(obj) {
  return _toString.call(obj) === '[object Object]';
}
function isFunction(value) {
  return typeof value === 'function';
}
function isNull(value) {
  return value === null || value === undefined;
}
function isMatchedRoute(value) {
  return Boolean(value && value.config);
}
function isLocation(v) {
  return isPlainObject(v) && (v.path || v.pathname);
}
function isHistoryLocation(v) {
  return isLocation(v) && Boolean(v._routeNormalized);
}
function isBoolean(v) {
  return typeof v === 'boolean';
}
function normalizeProps(props) {
  var res = {};
  if (isBoolean(props)) return props;
  if (Array.isArray(props)) {
    props.forEach(key => res[key] = {
      type: null
    });
  } else if (isPlainObject(props)) {
    Object.keys(props).forEach(key => {
      var val = props[key];
      res[key] = isPlainObject(val) ? val.type !== undefined ? val : normalizeProps(val) : {
        type: val
      };
    });
  } else return false;
  return res;
}
function isMatchRegxList(key, regx) {
  if (Array.isArray(regx)) return regx.some(v => isMatchRegxList(key, v));
  return regx instanceof RegExp ? regx.test(key) : regx === key;
}
function omitProps(props, excludes) {
  if (!excludes) return props;
  var ret = {};
  Object.getOwnPropertyNames(props).forEach(key => {
    if (isMatchRegxList(key, excludes)) return;
    ret[key] = props[key];
  });
  return ret;
}
function once(fn, ctx) {
  if (!fn) return fn;
  var ret;
  var called = false;
  var fnWrapper = function _once() {
    if (called) return ret;
    called = true;
    ret = fn.apply(ctx || this, arguments);
    return ret;
  };
  copyOwnProperties(fnWrapper, fn);
  return fnWrapper;
}
function isAcceptRef(v) {
  if (!v) return false;
  if (v.$$typeof === REACT_FORWARD_REF_TYPE && v.__componentClass) return true;
  if (v.__component) v = getGuardsComponent(v);
  var ret = false;
  if (v.prototype) {
    if (v.prototype instanceof React.Component || v.prototype.componentDidMount !== undefined) ret = true;
  } else if (v.$$typeof === REACT_FORWARD_REF_TYPE && !v.__guards) ret = true;
  return ret;
}
function mergeFns(...fns) {
  return function (...args) {
    var ret;
    fns.forEach(fn => {
      ret = fn && fn.call(this, ...args);
    });
    return ret;
  };
}
function resolveIndex(originIndex, routes) {
  var index = isFunction(originIndex) ? originIndex(routes) : originIndex;
  if (!index) return null;
  var r = routes.find(r => {
    if (index === ':first' && !r.index) {
      var visible = readRouteMeta(r, 'visible');
      if (visible !== false) return true;
    }
    var path1 = r.subpath[0] === '/' ? r.subpath : `/${r.subpath}`;
    var path2 = index[0] === '/' ? index : `/${index}`;
    return path1 === path2;
  }) || null;
  if (r && r.index) {
    if (r.index === originIndex) return null;
    return resolveIndex(r.index, routes);
  }
  return r;
}
function resolveRedirect(to, route, options = {}) {
  if (isFunction(to)) to = to.call(route.config, options.from, options.isInit);
  if (!to) return '';
  var ret = normalizeLocation(to, {
    route,
    queryProps: options.queryProps
  });
  if (!ret) return '';
  options.from && Object.assign(ret.query, options.from.query);
  ret.isRedirect = true;
  return ret;
}
function resolveAbort(abort, route, options = {}) {
  if (isFunction(abort)) {
    try {
      abort = abort.call(route.config, options.from, options.isInit);
    } catch (ex) {
      abort = ex;
    }
  }
  return abort;
}
function warn(...args) {
  console.error(...args);
}
function afterInterceptors(_x, _x2, _x3) {
  return _afterInterceptors.apply(this, arguments);
}
function _afterInterceptors() {
  _afterInterceptors = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime.mark(function _callee(interceptors, to, from) {
    var i, interceptor, _t;
    return _regeneratorRuntime.wrap(function (_context) {
      while (1) switch (_context.prev = _context.next) {
        case 0:
          i = 0;
        case 1:
          if (!(i < interceptors.length)) {
            _context.next = 7;
            break;
          }
          interceptor = interceptors[i];
        case 2:
          if (!(interceptor && interceptor.lazy)) {
            _context.next = 4;
            break;
          }
          _context.next = 3;
          return interceptor(interceptors, i);
        case 3:
          interceptor = _context.sent;
          _context.next = 2;
          break;
        case 4:
          if (interceptor) {
            _context.next = 5;
            break;
          }
          return _context.abrupt("return");
        case 5:
          _t = interceptor;
          if (!_t) {
            _context.next = 6;
            break;
          }
          _context.next = 6;
          return interceptor.call(this, to, from, interceptor.route);
        case 6:
          i++;
          _context.next = 1;
          break;
        case 7:
        case "end":
          return _context.stop();
      }
    }, _callee, this);
  }));
  return _afterInterceptors.apply(this, arguments);
}
function createLazyComponent(lazyMethodOrPromise) {
  return /*#__PURE__*/React.forwardRef((props, ref) => {
    var _useState = useState({
        mounted: false
      }),
      _useState2 = _slicedToArray(_useState, 1),
      $refs = _useState2[0];
    var _useState3 = useState({
        App: null
      }),
      _useState4 = _slicedToArray(_useState3, 2),
      comp = _useState4[0],
      setComp = _useState4[1];
    var App = comp.App;
    useEffect(() => {
      $refs.mounted = true;
      (isPromise(lazyMethodOrPromise) ? lazyMethodOrPromise : lazyMethodOrPromise()).then(App => {
        if (!$refs.mounted) return;
        if (App.__esModule) App = App.default;
        setComp({
          App: App
        });
      });
      return () => {
        $refs.mounted = false;
      };
    }, [$refs]);
    if (!App) return null;
    return /*#__PURE__*/React.createElement(App, _objectSpread(_objectSpread({}, props), ref ? {
      ref
    } : {}), props.children);
  });
}
function getConfigRouteProps(configs, name) {
  if (configs === false) return;
  if (name && configs[name] !== undefined) configs = configs[name];
  if (configs === true) return true;else if (isPlainObject(configs)) return Object.keys(configs);else if (Array.isArray(configs)) return configs;
  return [];
}
function configRouteProps(_props, configs, obj, name) {
  if (!obj || configs === false) return;
  if (name && configs[name] !== undefined) configs = configs[name];
  if (configs === true) Object.assign(_props, obj);else if (isPlainObject(configs)) {
    Object.keys(configs).forEach(key => {
      var prop = configs[key];
      var type = prop.type;
      var val = obj[key];
      if (val === undefined) {
        if (prop.default) {
          if (isFunction(prop.default) && (type === Object || type === Array)) {
            _props[key] = prop.default();
          } else _props[key] = prop.default;
        } else return;
      }
      if (type != null && !isBoolean(type)) _props[key] = type(val);else _props[key] = val;
    });
  }
}
function renderRoute(route, routes, props, children, options = {}) {
  if (props === undefined) props = {};
  if (!route) return null;
  if (/*#__PURE__*/React.isValidElement(route)) return route;
  if (isMatchedRoute(route)) route = route.config;
  function createComp(route, props, children, options) {
    var component = route.components && route.components[options.name || 'default'];
    if (!component) {
      if (route.children && route.children.length && options.router) {
        component = RouterViewWrapper;
      } else return null;
    }
    var _props = {
      key: route.path
    };
    if (route.defaultProps) {
      Object.assign(_props, isFunction(route.defaultProps) ? route.defaultProps(props) : route.defaultProps);
    }
    if (route.props) configRouteProps(_props, route.props, options.params, options.name);
    if (route.paramsProps) configRouteProps(_props, route.paramsProps, options.params, options.name);
    if (route.queryProps) configRouteProps(_props, route.queryProps, options.query, options.name);
    var ref = null;
    if (component) {
      if (isAcceptRef(component)) ref = options.ref;else if (route.enableRef) {
        if (!isFunction(route.enableRef) || route.enableRef(component)) ref = options.ref;
      }
    }
    var _pending = route._pending;
    var completeCallback = _pending && _pending.completeCallbacks[options.name || 'default'];
    var refHandler = once((el, componentClass) => {
      if (el || !ref) {
        // if (isFunction(componentClass)) componentClass = componentClass(el, route);
        if (componentClass && el && (el._reactInternalFiber || el._reactInternals)) {
          var refComp = null;
          var comp = el._reactInternalFiber || el._reactInternals;
          while (comp && !refComp) {
            if (comp.type === componentClass) {
              refComp = comp;
              break;
            }
            comp = comp.child;
          }
          if (refComp && refComp.stateNode instanceof componentClass) el = refComp.stateNode;else warn('componentClass', componentClass, 'not found in route component: ', el);
        }
        completeCallback && completeCallback(el);
      }
    });
    _pending && (_pending.completeCallbacks[options.name || 'default'] = null);
    if (ref) ref = mergeFns(ref, el => el && refHandler && refHandler(el, component.__componentClass));
    if (component.__component) component = getGuardsComponent(component);
    if (isRouteLazy(component)) {
      var routeLazy = component;
      component = createLazyComponent(() => routeLazy.toResolve(options.router, isMatchedRoute(route) ? route.config : route, options.name));
      warn(`route [${route.path}] component should not be RouteLazy instance!`);
    }
    var ret = /*#__PURE__*/React.createElement(component, Object.assign(_props, config.inheritProps ? {
      route
    } : null, props, {
      ref
    }), ...(Array.isArray(children) ? children : [children]));
    if (!ref) nextTick(refHandler);
    return ret;
  }
  var renderRoute = route;
  if (route && route.redirect) return null;
  if (route && route.index) renderRoute = resolveIndex(route.index, routes);
  if (!renderRoute) return null;
  var result = createComp(renderRoute, props, children, options);
  return result;
}
function flatten(array) {
  var flattend = [];
  (function flat(array) {
    array.forEach(function (el) {
      if (Array.isArray(el)) flat(el);else flattend.push(el);
    });
  })(array);
  return flattend;
}
function camelize(str) {
  var ret = str.replace(/[-](\w)/g, function (_, c) {
    return c ? c.toUpperCase() : '';
  });
  if (/^[A-Z]/.test(ret)) ret = ret.charAt(0).toLowerCase() + ret.substr(1);
  return ret;
}
function isPropChanged(prev, next, onChanged, keys) {
  if (!prev || !next) return prev !== next;
  return (keys || Object.keys(next)).some(key => {
    var newVal = next[key];
    var oldVal = prev[key];
    var changed = newVal !== oldVal;
    if (changed && onChanged) changed = onChanged(key, newVal, oldVal);
    return changed;
  });
}
function isRouteChanged(prev, next) {
  if (!prev || !next) return prev !== next;
  return prev.path !== next.path || prev.subpath !== next.subpath;
}
function isMatchedRoutePropsChanged(matchedRoute, router, name) {
  if (!matchedRoute) return false;
  return router && ['query', 'params'].some(key => {
    var configs = key === 'params' ? matchedRoute.config.paramsProps || matchedRoute.config.props : matchedRoute.config.queryProps;
    var keys = configs && getConfigRouteProps(configs, name);
    if (!keys) return false;
    if (keys === true) {
      if (!router.currentRoute) return false;
      keys = Object.keys(router.currentRoute[key]);
    }
    return isPropChanged(router.currentRoute && router.currentRoute[key], router.prevRoute && router.prevRoute[key], null, keys);
  });
}
function isRoutesChanged(prevs, nexts) {
  if (!prevs || !nexts) return true;
  if (prevs.length !== nexts.length) return true;
  var changed = false;
  prevs.some((prev, i) => {
    changed = isRouteChanged(prev, nexts[i]);
    return changed;
  });
  return changed;
}
function getHostRouterView(ctx, continueCb) {
  var parent = (ctx._reactInternalFiber || ctx._reactInternals).return;
  while (parent) {
    if (continueCb && continueCb(parent) === false) return null;
    var memoizedState = parent.memoizedState;
    // const memoizedProps = parent.memoizedProps;
    if (memoizedState && hasOwnProp(memoizedState, '_routerRoot')) {
      return parent.stateNode;
    }
    parent = parent.return;
  }
  return null;
}
function getParentRoute(ctx) {
  var view = getHostRouterView(ctx);
  return view && view.state.currentRoute || null;
}
function isConfigRoute(value) {
  return value && value._normalized && value._pending;
}
function isNormalizedConfigRouteArray(value) {
  return Array.isArray(value) && value._normalized;
}
function isString(value) {
  return typeof value === 'string';
}
function isNumber(value) {
  return typeof value === 'number';
}
function isAbsoluteUrl(to) {
  return isString(to) && /^(https?:)?\/\/.+/.test(to);
}
function getCurrentPageHash(to) {
  if (!to || !globalThis.location) return '';
  var _ref = to.match(/(.+)#(.+)$/) || [],
    _ref2 = _slicedToArray(_ref, 3),
    _ref2$ = _ref2[1],
    host = _ref2$ === void 0 ? '' : _ref2$,
    _ref2$2 = _ref2[2],
    hash = _ref2$2 === void 0 ? '' : _ref2$2;
  return globalThis.location.href.startsWith(host) ? hash : '';
}
function getSessionStorage(key, json = false) {
  if (!globalThis.sessionStorage) return null;
  var v = globalThis.sessionStorage[key];
  if (v === undefined) return json ? null : '';
  return json ? JSON.parse(v) : v;
}
function setSessionStorage(key, value, replacer) {
  if (!globalThis.sessionStorage) return;
  var isNull = value === undefined || value === null;
  var v = isString(value) ? value : JSON.stringify(value, replacer);
  if (!v || isNull) globalThis.sessionStorage.removeItem(key);else globalThis.sessionStorage[key] = v;
}
function getRouterViewPath(routerView) {
  if (!routerView || !routerView.state.currentRoute) return '';
  return routerView.state.currentRoute.path;
}
function isRoute(route) {
  return Boolean(route && route.isViewRoute);
}
function isReactViewRouter(v) {
  return v && v.isReactViewRouterInstance;
}
function isHistory(v) {
  return v && v.isHistoryInstance;
}
function isRouteGuardInfoHooks(v) {
  return v && v.__routeGuardInfoHooks;
}
function isReadonly(obj, key) {
  var d = obj && Object.getOwnPropertyDescriptor(obj, key);
  return Boolean(!obj || d && !d.writable);
}
function isRouteChildrenNormalized(fn) {
  return fn && fn._normalized;
}
function normalizeRouteChildrenFn(childrenFn, checkDirty) {
  if (!childrenFn || isRouteChildrenNormalized(childrenFn)) return childrenFn;
  var cache = {};
  var ret = function ret(parent) {
    var isDirty = checkDirty && checkDirty(cache.routes);
    if (!isDirty && cache.routes) return cache.routes || normalizeRoutes([], parent);
    return cache.routes = normalizeRoutes(childrenFn(parent), parent);
  };
  innumerable(cache, 'cache', cache);
  innumerable(ret, '_normalized', true);
  Object.getOwnPropertyNames(childrenFn).forEach(key => {
    if (['cache', '_normalized'].includes(key)) return;
    var p = Object.getOwnPropertyDescriptor(childrenFn, key);
    p && Object.defineProperty(ret, key, p);
  });
  return ret;
}
function getRouteChildren(children, parent) {
  if (isFunction(children)) children = children(parent);
  return children || [];
}
function readRouteMeta(configOrMatchedRoute, key = '', props = {}) {
  if (!key) return;
  // if (isMatchedRoute(configOrMatchedRoute)) return configOrMatchedRoute.meta[key];

  var route = isMatchedRoute(configOrMatchedRoute) ? configOrMatchedRoute.config : configOrMatchedRoute;
  var value = route.meta[key];
  if (isFunction(value)) {
    var _routes = route.parent ? route.parent.children : props.router && props.router.routes;
    value = value(route, (isFunction(_routes) ? normalizeRoutes(_routes(route.parent), route.parent) : _routes) || normalizeRoutes([], route.parent), props);
  }
  return value;
}
function getCompleteRoute(route) {
  if (!route || route.isComplete) return route;
  while (route.redirectedFrom) {
    route = route.redirectedFrom;
    if (route.isComplete) return route;
  }
  return null;
}
function getLoactionAction(to) {
  if (!to) return;
  return to.isRedirect && !to.isComplete ? getLoactionAction(to.redirectedFrom) : to.action;
}
function reverseArray(originArray) {
  var ret = [];
  for (var i = originArray.length - 1; i >= 0; i--) {
    ret.push(originArray[i]);
  }
  return ret;
}
function createUserConfigRoute(route) {
  return route;
}
function createUserConfigRoutes(routes) {
  return routes;
}
var EMPTY_ROTUE_STATE_NAME = 'empty-state';
function createEmptyRouteState() {
  return innumerable({}, EMPTY_ROTUE_STATE_NAME, true);
}
function isEmptyRouteState(state) {
  return !state || state[EMPTY_ROTUE_STATE_NAME];
}
export { DEFAULT_STATE_NAME, camelize, flatten, warn, once, ignoreCatch, mergeFns, reverseArray, copyOwnProperty, copyOwnProperties, isAcceptRef, nextTick, hasOwnProp, isNull, isBoolean, isString, isNumber, isPlainObject, isFunction, isMatchedRoute, isLocation, isConfigRoute, isNormalizedConfigRouteArray, isHistoryLocation, isPropChanged, isRouteChanged, isRoutesChanged, isMatchedRoutePropsChanged, isAbsoluteUrl, isRoute, isReactViewRouter, isRouteGuardInfoHooks, isHistory, isReadonly, isPromise, isRouteLazy, isRouteChildrenNormalized, isMatchRegxList, resolveRedirect, resolveAbort, resolveIndex, normalizePath, normalizeRoute, normalizeRoutes, normalizeRouteChildrenFn, normalizeRoutePath, normalizeLocation, normalizeProps, omitProps, walkRoutes, matchPath, matchRoutes, configRouteProps, renderRoute, innumerable, readonly, afterInterceptors, getParentRoute, getRouteChildren, getHostRouterView, getCurrentPageHash, getRouterViewPath, getCompleteRoute, getLoactionAction, getSessionStorage, setSessionStorage, readRouteMeta, createLazyComponent, createUserConfigRoute, createUserConfigRoutes, createEmptyRouteState, isEmptyRouteState };
//# sourceMappingURL=util.js.map