saven/packages/saven-redux-h5/lib/index.js

no

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('nervjs'), require('@savenjs/saven-h5'), require('prop-types'), require('hoist-non-react-statics'), require('invariant'), require('redux')) :
  typeof define === 'function' && define.amd ? define(['nervjs', '@savenjs/saven-h5', 'prop-types', 'hoist-non-react-statics', 'invariant', 'redux'], factory) :
  (global['@savenjs/redux-h5'] = factory(global.Nerv,global.savenH5,global.PropTypes,global.hoistStatics,global.invariant,global.Redux));
}(this, (function (nervjs,savenH5,PropTypes,hoistStatics,invariant,redux) { 'use strict';

  PropTypes = PropTypes && PropTypes.hasOwnProperty('default') ? PropTypes['default'] : PropTypes;
  hoistStatics = hoistStatics && hoistStatics.hasOwnProperty('default') ? hoistStatics['default'] : hoistStatics;
  invariant = invariant && invariant.hasOwnProperty('default') ? invariant['default'] : invariant;

  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

    return obj;
  }

  function _objectSpread(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};
      var ownKeys = Object.keys(source);

      if (typeof Object.getOwnPropertySymbols === 'function') {
        ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
        }));
      }

      ownKeys.forEach(function (key) {
        _defineProperty(target, key, source[key]);
      });
    }

    return target;
  }

  function _inheritsLoose(subClass, superClass) {
    subClass.prototype = Object.create(superClass.prototype);
    subClass.prototype.constructor = subClass;
    subClass.__proto__ = superClass;
  }

  function _objectWithoutPropertiesLoose(source, excluded) {
    if (source == null) return {};
    var target = {};
    var sourceKeys = Object.keys(source);
    var key, i;

    for (i = 0; i < sourceKeys.length; i++) {
      key = sourceKeys[i];
      if (excluded.indexOf(key) >= 0) continue;
      target[key] = source[key];
    }

    return target;
  }

  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return self;
  }

  /* eslint-disable-next-line import/no-unresolved */
  var EMPTY_ARRAY = [];
  var isArray = Array.isArray;
  var Children = {
    only: function only(children) {
      children = Children.toArray(children);

      if (children.length !== 1) {
        throw new Error('Provider expects only one child.');
      }

      return children[0];
    },
    toArray: function toArray(children) {
      if (children === null || children === void 0) {
        return [];
      }

      return isArray(children) ? children : EMPTY_ARRAY.concat(children);
    }
  };

  var subscriptionShape = PropTypes.shape({
    trySubscribe: PropTypes.func.isRequired,
    tryUnsubscribe: PropTypes.func.isRequired,
    notifyNestedSubs: PropTypes.func.isRequired,
    isSubscribed: PropTypes.func.isRequired
  });
  var storeShape = PropTypes.shape({
    subscribe: PropTypes.func.isRequired,
    dispatch: PropTypes.func.isRequired,
    getState: PropTypes.func.isRequired
  });

  /**
   * Prints a warning in the console if it exists.
   *
   * @param {String} message The warning message.
   * @returns {void}
   */

  function createProvider(storeKey) {
    var _Provider$childContex;

    if (storeKey === void 0) {
      storeKey = 'store';
    }

    var subscriptionKey = storeKey + "Subscription";

    var Provider =
    /*#__PURE__*/
    function (_Component) {
      _inheritsLoose(Provider, _Component);

      var _proto = Provider.prototype;

      _proto.getChildContext = function getChildContext() {
        var _ref;

        return _ref = {}, _ref[storeKey] = this[storeKey], _ref[subscriptionKey] = null, _ref;
      };

      function Provider(props, context) {
        var _this;

        _this = _Component.call(this, props, context) || this;
        _this[storeKey] = props.store;
        return _this;
      }

      _proto.render = function render() {
        return Children.only(this.props.children);
      };

      return Provider;
    }(savenH5.Component);

    Provider.childContextTypes = (_Provider$childContex = {}, _Provider$childContex[storeKey] = storeShape.isRequired, _Provider$childContex[subscriptionKey] = subscriptionShape, _Provider$childContex);
    return Provider;
  }
  var Provider = createProvider();

  // encapsulates the subscription logic for connecting a component to the redux store, as
  // well as nesting subscriptions of descendant components, so that we can ensure the
  // ancestor components re-render before descendants
  var CLEARED = null;
  var nullListeners = {
    notify: function notify() {}
  };

  function createListenerCollection() {
    // the current/next pattern is copied from redux's createStore code.
    // TODO: refactor+expose that code to be reusable here?
    var current = [];
    var next = [];
    return {
      clear: function clear() {
        next = CLEARED;
        current = CLEARED;
      },
      notify: function notify() {
        var listeners = current = next;

        for (var i = 0; i < listeners.length; i++) {
          listeners[i]();
        }
      },
      get: function get() {
        return next;
      },
      subscribe: function subscribe(listener) {
        var isSubscribed = true;
        if (next === current) next = current.slice();
        next.push(listener);
        return function unsubscribe() {
          if (!isSubscribed || current === CLEARED) return;
          isSubscribed = false;
          if (next === current) next = current.slice();
          next.splice(next.indexOf(listener), 1);
        };
      }
    };
  }

  var Subscription =
  /*#__PURE__*/
  function () {
    function Subscription(store, parentSub, onStateChange) {
      this.store = store;
      this.parentSub = parentSub;
      this.onStateChange = onStateChange;
      this.unsubscribe = null;
      this.listeners = nullListeners;
    }

    var _proto = Subscription.prototype;

    _proto.addNestedSub = function addNestedSub(listener) {
      this.trySubscribe();
      return this.listeners.subscribe(listener);
    };

    _proto.notifyNestedSubs = function notifyNestedSubs() {
      this.listeners.notify();
    };

    _proto.isSubscribed = function isSubscribed() {
      return Boolean(this.unsubscribe);
    };

    _proto.trySubscribe = function trySubscribe() {
      if (!this.unsubscribe) {
        this.unsubscribe = this.parentSub ? this.parentSub.addNestedSub(this.onStateChange) : this.store.subscribe(this.onStateChange);
        this.listeners = createListenerCollection();
      }
    };

    _proto.tryUnsubscribe = function tryUnsubscribe() {
      if (this.unsubscribe) {
        this.unsubscribe();
        this.unsubscribe = null;
        this.listeners.clear();
        this.listeners = nullListeners;
      }
    };

    return Subscription;
  }();

  var hotReloadingVersion = 0;
  var dummyState = {};

  function noop() {}

  function makeSelectorStateful(sourceSelector, store) {
    // wrap the selector in an object that tracks its results between runs.
    var selector = {
      run: function runComponentSelector(props) {
        try {
          var nextProps = sourceSelector(store.getState(), props);

          if (nextProps !== selector.props || selector.error) {
            selector.shouldComponentUpdate = true;
            selector.props = nextProps;
            selector.error = null;
          }
        } catch (error) {
          selector.shouldComponentUpdate = true;
          selector.error = error;
        }
      }
    };
    return selector;
  }

  function connectAdvanced(
  /*
    selectorFactory is a func that is responsible for returning the selector function used to
    compute new props from state, props, and dispatch. For example:
       export default connectAdvanced((dispatch, options) => (state, props) => ({
        thing: state.things[props.thingId],
        saveThing: fields => dispatch(actionCreators.saveThing(props.thingId, fields)),
      }))(YourComponent)
     Access to dispatch is provided to the factory so selectorFactories can bind actionCreators
    outside of their selector as an optimization. Options passed to connectAdvanced are passed to
    the selectorFactory, along with displayName and WrappedComponent, as the second argument.
     Note that selectorFactory is responsible for all caching/memoization of inbound and outbound
    props. Do not use connectAdvanced directly without memoizing results between calls to your
    selector, otherwise the Connect component will re-render on every state or props change.
  */
  selectorFactory, // options object:
  _ref) {
    var _contextTypes, _childContextTypes;

    if (_ref === void 0) {
      _ref = {};
    }

    var _ref2 = _ref,
        _ref2$getDisplayName = _ref2.getDisplayName,
        getDisplayName = _ref2$getDisplayName === void 0 ? function (name) {
      return "ConnectAdvanced(" + name + ")";
    } : _ref2$getDisplayName,
        _ref2$methodName = _ref2.methodName,
        methodName = _ref2$methodName === void 0 ? 'connectAdvanced' : _ref2$methodName,
        _ref2$renderCountProp = _ref2.renderCountProp,
        renderCountProp = _ref2$renderCountProp === void 0 ? undefined : _ref2$renderCountProp,
        _ref2$shouldHandleSta = _ref2.shouldHandleStateChanges,
        shouldHandleStateChanges = _ref2$shouldHandleSta === void 0 ? true : _ref2$shouldHandleSta,
        _ref2$storeKey = _ref2.storeKey,
        storeKey = _ref2$storeKey === void 0 ? 'store' : _ref2$storeKey,
        _ref2$withRef = _ref2.withRef,
        withRef = _ref2$withRef === void 0 ? false : _ref2$withRef,
        connectOptions = _objectWithoutPropertiesLoose(_ref2, ["getDisplayName", "methodName", "renderCountProp", "shouldHandleStateChanges", "storeKey", "withRef"]);

    var subscriptionKey = storeKey + 'Subscription';
    var version = hotReloadingVersion++;
    var contextTypes = (_contextTypes = {}, _contextTypes[storeKey] = storeShape, _contextTypes[subscriptionKey] = subscriptionShape, _contextTypes);
    var childContextTypes = (_childContextTypes = {}, _childContextTypes[subscriptionKey] = subscriptionShape, _childContextTypes);
    return function wrapWithConnect(WrappedComponent) {
      invariant(typeof WrappedComponent == 'function', "You must pass a component to the function returned by " + (methodName + ". Instead received " + JSON.stringify(WrappedComponent)));
      var wrappedComponentName = WrappedComponent.displayName || WrappedComponent.name || 'Component';
      var displayName = getDisplayName(wrappedComponentName);

      var selectorFactoryOptions = _objectSpread({}, connectOptions, {
        getDisplayName: getDisplayName,
        methodName: methodName,
        renderCountProp: renderCountProp,
        shouldHandleStateChanges: shouldHandleStateChanges,
        storeKey: storeKey,
        withRef: withRef,
        displayName: displayName,
        wrappedComponentName: wrappedComponentName,
        WrappedComponent: WrappedComponent
      });

      var Connect =
      /*#__PURE__*/
      function (_Component) {
        _inheritsLoose(Connect, _Component);

        function Connect(props, context) {
          var _this;

          _this = _Component.call(this, props, context) || this;

          _defineProperty(_assertThisInitialized(_assertThisInitialized(_this)), "setWrappedInstance", function (ref) {
            if (ref === null) return;
            _this.wrappedInstance = ref;
          });

          _this.version = version;
          _this.state = {};
          _this.renderCount = 0;
          _this.store = props[storeKey] || context[storeKey];
          _this.propsMode = Boolean(props[storeKey]);
          invariant(_this.store, "Could not find \"" + storeKey + "\" in either the context or props of " + ("\"" + displayName + "\". Either wrap the root component in a <Provider>, ") + ("or explicitly pass \"" + storeKey + "\" as a prop to \"" + displayName + "\"."));

          _this.initSelector();

          _this.initSubscription();

          return _this;
        }

        var _proto = Connect.prototype;

        _proto.getChildContext = function getChildContext() {
          var _ref3;

          // If this component received store from props, its subscription should be transparent
          // to any descendants receiving store+subscription from context; it passes along
          // subscription passed to it. Otherwise, it shadows the parent subscription, which allows
          // Connect to control ordering of notifications to flow top-down.
          var subscription = this.propsMode ? null : this.subscription;
          return _ref3 = {}, _ref3[subscriptionKey] = subscription || this.context[subscriptionKey], _ref3;
        };

        _proto.componentDidMount = function componentDidMount() {
          if (!shouldHandleStateChanges) return; // componentWillMount fires during server side rendering, but componentDidMount and
          // componentWillUnmount do not. Because of this, trySubscribe happens during ...didMount.
          // Otherwise, unsubscription would never take place during SSR, causing a memory leak.
          // To handle the case where a child component may have triggered a state change by
          // dispatching an action in its componentWillMount, we have to re-run the select and maybe
          // re-render.

          this.subscription.trySubscribe();
          this.selector.run(this.props);
          if (this.selector.shouldComponentUpdate) this.forceUpdate();
        };

        _proto.componentWillReceiveProps = function componentWillReceiveProps(nextProps) {
          this.selector.run(nextProps);
        };

        _proto.shouldComponentUpdate = function shouldComponentUpdate() {
          return this.selector.shouldComponentUpdate;
        };

        _proto.componentWillUnmount = function componentWillUnmount() {
          if (this.subscription) this.subscription.tryUnsubscribe();
          this.subscription = null;
          this.notifyNestedSubs = noop;
          this.store = null;
          this.selector.run = noop;
          this.selector.shouldComponentUpdate = false;
        };

        _proto.getWrappedInstance = function getWrappedInstance() {
          invariant(withRef, "To access the wrapped instance, you need to specify " + ("{ withRef: true } in the options argument of the " + methodName + "() call."));
          return this.wrappedInstance;
        };

        _proto.initSelector = function initSelector() {
          var sourceSelector = selectorFactory(this.store.dispatch, selectorFactoryOptions);
          this.selector = makeSelectorStateful(sourceSelector, this.store);
          this.selector.run(this.props);
        };

        _proto.initSubscription = function initSubscription() {
          if (!shouldHandleStateChanges) return; // parentSub's source should match where store came from: props vs. context. A component
          // connected to the store via props shouldn't use subscription from context, or vice versa.

          var parentSub = (this.propsMode ? this.props : this.context)[subscriptionKey];
          this.subscription = new Subscription(this.store, parentSub, this.onStateChange.bind(this)); // `notifyNestedSubs` is duplicated to handle the case where the component is  unmounted in
          // the middle of the notification loop, where `this.subscription` will then be null. An
          // extra null check every change can be avoided by copying the method onto `this` and then
          // replacing it with a no-op on unmount. This can probably be avoided if Subscription's
          // listeners logic is changed to not call listeners that have been unsubscribed in the
          // middle of the notification loop.

          this.notifyNestedSubs = this.subscription.notifyNestedSubs.bind(this.subscription);
        };

        _proto.onStateChange = function onStateChange() {
          this.selector.run(this.props);

          if (!this.selector.shouldComponentUpdate) {
            this.notifyNestedSubs();
          } else {
            this.componentDidUpdate = this.notifyNestedSubsOnComponentDidUpdate;
            this.setState(dummyState);
          }
        };

        _proto.notifyNestedSubsOnComponentDidUpdate = function notifyNestedSubsOnComponentDidUpdate() {
          // `componentDidUpdate` is conditionally implemented when `onStateChange` determines it
          // needs to notify nested subs. Once called, it unimplements itself until further state
          // changes occur. Doing it this way vs having a permanent `componentDidUpdate` that does
          // a boolean check every time avoids an extra method call most of the time, resulting
          // in some perf boost.
          this.componentDidUpdate = undefined;
          this.notifyNestedSubs();
        };

        _proto.isSubscribed = function isSubscribed() {
          return Boolean(this.subscription) && this.subscription.isSubscribed();
        };

        _proto.addExtraProps = function addExtraProps(props) {
          // if (!withRef && !renderCountProp && !(this.propsMode && this.subscription)) return props
          // make a shallow copy so that fields added don't leak to the original selector.
          // this is especially important for 'ref' since that's a reference back to the component
          // instance. a singleton memoized selector would then be holding a reference to the
          // instance, preventing the instance from being garbage collected, and that would be bad
          var withExtras = _objectSpread({}, props); // if (withRef) withExtras.ref = this.setWrappedInstance


          withExtras.ref = this.setWrappedInstance;
          if (renderCountProp) withExtras[renderCountProp] = this.renderCount++;
          if (this.propsMode && this.subscription) withExtras[subscriptionKey] = this.subscription;
          return withExtras;
        };

        _proto.render = function render() {
          var selector = this.selector;
          selector.shouldComponentUpdate = false;

          if (selector.error) {
            throw selector.error;
          } else {
            return nervjs.createElement(WrappedComponent, this.addExtraProps(selector.props));
          }
        };

        return Connect;
      }(savenH5.Component);

      Connect.WrappedComponent = WrappedComponent;
      Connect.displayName = displayName;
      Connect.childContextTypes = childContextTypes;
      Connect.contextTypes = contextTypes;
      var componentDidShow = WrappedComponent.prototype.componentDidShow;
      var componentDidHide = WrappedComponent.prototype.componentDidHide;
      var originalComponentDidMount = WrappedComponent.prototype.componentDidMount;
      var originalComponentWillUnmount = WrappedComponent.prototype.componentWillUnmount;
      var originalConnectComponentDidMount = Connect.prototype.componentDidMount;
      var originalConnectComponentWillUnmount = Connect.prototype.componentWillUnmount;
      /**
       * 调用过程
       * 
       * Connect.prototype.componentDidMount
       * Connect.prototype.componentDidShow  [router调用]
       * WrappedComponent.prototype.componentDidMount = didMount + didShow
       * WrappedComponent.prototype.compomentDidShow [只有didMount用]
       */

      WrappedComponent.prototype.componentDidMount = function () {
        originalComponentDidMount && originalComponentDidMount.call(this);
        componentDidShow && componentDidShow.call(this);
      };

      WrappedComponent.prototype.componentWillUnmount = function () {
        componentDidHide && componentDidHide.call(this);
        originalComponentWillUnmount && originalComponentWillUnmount.call(this);
      };

      Connect.prototype.componentDidMount = function () {
        originalConnectComponentDidMount.call(this);

        this.componentDidShow = function () {
          var comp = this.wrappedInstance;
          componentDidShow && componentDidShow.call(comp);
        };
      };

      Connect.prototype.componentWillUnmount = function () {
        originalConnectComponentWillUnmount.call(this);

        this.componentDidHide = function () {
          var comp = this.wrappedInstance;
          componentDidHide && componentDidHide.call(comp);
        };
      };

      return hoistStatics(Connect, WrappedComponent);
    };
  }

  var hasOwn = Object.prototype.hasOwnProperty;

  function is(x, y) {
    if (x === y) {
      return x !== 0 || y !== 0 || 1 / x === 1 / y;
    } else {
      return x !== x && y !== y;
    }
  }

  function shallowEqual(objA, objB) {
    if (is(objA, objB)) return true;

    if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
      return false;
    }

    var keysA = Object.keys(objA);
    var keysB = Object.keys(objB);
    if (keysA.length !== keysB.length) return false;

    for (var i = 0; i < keysA.length; i++) {
      if (!hasOwn.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) {
        return false;
      }
    }

    return true;
  }

  /**
   * @param {any} obj The object to inspect.
   * @returns {boolean} True if the argument appears to be a plain object.
   */

  function wrapMapToPropsConstant(getConstant) {
    return function initConstantSelector(dispatch, options) {
      var constant = getConstant(dispatch, options);

      function constantSelector() {
        return constant;
      }

      constantSelector.dependsOnOwnProps = false;
      return constantSelector;
    };
  } // dependsOnOwnProps is used by createMapToPropsProxy to determine whether to pass props as args
  // to the mapToProps function being wrapped. It is also used by makePurePropsSelector to determine
  // whether mapToProps needs to be invoked when props have changed.
  // 
  // A length of one signals that mapToProps does not depend on props from the parent component.
  // A length of zero is assumed to mean mapToProps is getting args via arguments or ...args and
  // therefore not reporting its length accurately..

  function getDependsOnOwnProps(mapToProps) {
    return mapToProps.dependsOnOwnProps !== null && mapToProps.dependsOnOwnProps !== undefined ? Boolean(mapToProps.dependsOnOwnProps) : mapToProps.length !== 1;
  } // Used by whenMapStateToPropsIsFunction and whenMapDispatchToPropsIsFunction,
  // this function wraps mapToProps in a proxy function which does several things:
  // 
  //  * Detects whether the mapToProps function being called depends on props, which
  //    is used by selectorFactory to decide if it should reinvoke on props changes.
  //    
  //  * On first call, handles mapToProps if returns another function, and treats that
  //    new function as the true mapToProps for subsequent calls.
  //    
  //  * On first call, verifies the first result is a plain object, in order to warn
  //    the developer that their mapToProps function is not returning a valid result.
  //    

  function wrapMapToPropsFunc(mapToProps, methodName) {
    return function initProxySelector(dispatch, _ref) {
      var displayName = _ref.displayName;

      var proxy = function mapToPropsProxy(stateOrDispatch, ownProps) {
        return proxy.dependsOnOwnProps ? proxy.mapToProps(stateOrDispatch, ownProps) : proxy.mapToProps(stateOrDispatch);
      }; // allow detectFactoryAndVerify to get ownProps


      proxy.dependsOnOwnProps = true;

      proxy.mapToProps = function detectFactoryAndVerify(stateOrDispatch, ownProps) {
        proxy.mapToProps = mapToProps;
        proxy.dependsOnOwnProps = getDependsOnOwnProps(mapToProps);
        var props = proxy(stateOrDispatch, ownProps);

        if (typeof props === 'function') {
          proxy.mapToProps = props;
          proxy.dependsOnOwnProps = getDependsOnOwnProps(props);
          props = proxy(stateOrDispatch, ownProps);
        }
        return props;
      };

      return proxy;
    };
  }

  function whenMapDispatchToPropsIsFunction(mapDispatchToProps) {
    return typeof mapDispatchToProps === 'function' ? wrapMapToPropsFunc(mapDispatchToProps, 'mapDispatchToProps') : undefined;
  }
  function whenMapDispatchToPropsIsMissing(mapDispatchToProps) {
    return !mapDispatchToProps ? wrapMapToPropsConstant(function (dispatch) {
      return {
        dispatch: dispatch
      };
    }) : undefined;
  }
  function whenMapDispatchToPropsIsObject(mapDispatchToProps) {
    return mapDispatchToProps && typeof mapDispatchToProps === 'object' ? wrapMapToPropsConstant(function (dispatch) {
      return redux.bindActionCreators(mapDispatchToProps, dispatch);
    }) : undefined;
  }
  var defaultMapDispatchToPropsFactories = [whenMapDispatchToPropsIsFunction, whenMapDispatchToPropsIsMissing, whenMapDispatchToPropsIsObject];

  function whenMapStateToPropsIsFunction(mapStateToProps) {
    return typeof mapStateToProps === 'function' ? wrapMapToPropsFunc(mapStateToProps, 'mapStateToProps') : undefined;
  }
  function whenMapStateToPropsIsMissing(mapStateToProps) {
    return !mapStateToProps ? wrapMapToPropsConstant(function () {
      return {};
    }) : undefined;
  }
  var defaultMapStateToPropsFactories = [whenMapStateToPropsIsFunction, whenMapStateToPropsIsMissing];

  function defaultMergeProps(stateProps, dispatchProps, ownProps) {
    return _objectSpread({}, ownProps, stateProps, dispatchProps);
  }
  function wrapMergePropsFunc(mergeProps) {
    return function initMergePropsProxy(dispatch, _ref) {
      var displayName = _ref.displayName,
          pure = _ref.pure,
          areMergedPropsEqual = _ref.areMergedPropsEqual;
      var hasRunOnce = false;
      var mergedProps;
      return function mergePropsProxy(stateProps, dispatchProps, ownProps) {
        var nextMergedProps = mergeProps(stateProps, dispatchProps, ownProps);

        if (hasRunOnce) {
          if (!pure || !areMergedPropsEqual(nextMergedProps, mergedProps)) mergedProps = nextMergedProps;
        } else {
          hasRunOnce = true;
          mergedProps = nextMergedProps;
        }

        return mergedProps;
      };
    };
  }
  function whenMergePropsIsFunction(mergeProps) {
    return typeof mergeProps === 'function' ? wrapMergePropsFunc(mergeProps) : undefined;
  }
  function whenMergePropsIsOmitted(mergeProps) {
    return !mergeProps ? function () {
      return defaultMergeProps;
    } : undefined;
  }
  var defaultMergePropsFactories = [whenMergePropsIsFunction, whenMergePropsIsOmitted];

  function impureFinalPropsSelectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch) {
    return function impureFinalPropsSelector(state, ownProps) {
      return mergeProps(mapStateToProps(state, ownProps), mapDispatchToProps(dispatch, ownProps), ownProps);
    };
  }
  function pureFinalPropsSelectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch, _ref) {
    var areStatesEqual = _ref.areStatesEqual,
        areOwnPropsEqual = _ref.areOwnPropsEqual,
        areStatePropsEqual = _ref.areStatePropsEqual;
    var hasRunAtLeastOnce = false;
    var state;
    var ownProps;
    var stateProps;
    var dispatchProps;
    var mergedProps;

    function handleFirstCall(firstState, firstOwnProps) {
      state = firstState;
      ownProps = firstOwnProps;
      stateProps = mapStateToProps(state, ownProps);
      dispatchProps = mapDispatchToProps(dispatch, ownProps);
      mergedProps = mergeProps(stateProps, dispatchProps, ownProps);
      hasRunAtLeastOnce = true;
      return mergedProps;
    }

    function handleNewPropsAndNewState() {
      stateProps = mapStateToProps(state, ownProps);
      if (mapDispatchToProps.dependsOnOwnProps) dispatchProps = mapDispatchToProps(dispatch, ownProps);
      mergedProps = mergeProps(stateProps, dispatchProps, ownProps);
      return mergedProps;
    }

    function handleNewProps() {
      if (mapStateToProps.dependsOnOwnProps) stateProps = mapStateToProps(state, ownProps);
      if (mapDispatchToProps.dependsOnOwnProps) dispatchProps = mapDispatchToProps(dispatch, ownProps);
      mergedProps = mergeProps(stateProps, dispatchProps, ownProps);
      return mergedProps;
    }

    function handleNewState() {
      var nextStateProps = mapStateToProps(state, ownProps);
      var statePropsChanged = !areStatePropsEqual(nextStateProps, stateProps);
      stateProps = nextStateProps;
      if (statePropsChanged) mergedProps = mergeProps(stateProps, dispatchProps, ownProps);
      return mergedProps;
    }

    function handleSubsequentCalls(nextState, nextOwnProps) {
      var propsChanged = !areOwnPropsEqual(nextOwnProps, ownProps);
      var stateChanged = !areStatesEqual(nextState, state);
      state = nextState;
      ownProps = nextOwnProps;
      if (propsChanged && stateChanged) return handleNewPropsAndNewState();
      if (propsChanged) return handleNewProps();
      if (stateChanged) return handleNewState();
      return mergedProps;
    }

    return function pureFinalPropsSelector(nextState, nextOwnProps) {
      return hasRunAtLeastOnce ? handleSubsequentCalls(nextState, nextOwnProps) : handleFirstCall(nextState, nextOwnProps);
    };
  } // TODO: Add more comments
  // If pure is true, the selector returned by selectorFactory will memoize its results,
  // allowing connectAdvanced's shouldComponentUpdate to return false if final
  // props have not changed. If false, the selector will always return a new
  // object and shouldComponentUpdate will always return true.

  function finalPropsSelectorFactory(dispatch, _ref2) {
    var initMapStateToProps = _ref2.initMapStateToProps,
        initMapDispatchToProps = _ref2.initMapDispatchToProps,
        initMergeProps = _ref2.initMergeProps,
        options = _objectWithoutPropertiesLoose(_ref2, ["initMapStateToProps", "initMapDispatchToProps", "initMergeProps"]);

    var mapStateToProps = initMapStateToProps(dispatch, options);
    var mapDispatchToProps = initMapDispatchToProps(dispatch, options);
    var mergeProps = initMergeProps(dispatch, options);

    var selectorFactory = options.pure ? pureFinalPropsSelectorFactory : impureFinalPropsSelectorFactory;
    return selectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch, options);
  }

  /*
    connect is a facade over connectAdvanced. It turns its args into a compatible
    selectorFactory, which has the signature:

      (dispatch, options) => (nextState, nextOwnProps) => nextFinalProps
    
    connect passes its args to connectAdvanced as options, which will in turn pass them to
    selectorFactory each time a Connect component instance is instantiated or hot reloaded.

    selectorFactory returns a final props selector from its mapStateToProps,
    mapStateToPropsFactories, mapDispatchToProps, mapDispatchToPropsFactories, mergeProps,
    mergePropsFactories, and pure args.

    The resulting final props selector is called by the Connect component instance whenever
    it receives new props or store state.
   */

  function match(arg, factories, name) {
    for (var i = factories.length - 1; i >= 0; i--) {
      var result = factories[i](arg);
      if (result) return result;
    }

    return function (dispatch, options) {
      throw new Error("Invalid value of type " + typeof arg + " for " + name + " argument when connecting component " + options.wrappedComponentName + ".");
    };
  }

  function strictEqual(a, b) {
    return a === b;
  } // createConnect with default args builds the 'official' connect behavior. Calling it with
  // different options opens up some testing and extensibility scenarios


  function createConnect(_temp) {
    var _ref = _temp === void 0 ? {} : _temp,
        _ref$connectHOC = _ref.connectHOC,
        connectHOC = _ref$connectHOC === void 0 ? connectAdvanced : _ref$connectHOC,
        _ref$mapStateToPropsF = _ref.mapStateToPropsFactories,
        mapStateToPropsFactories = _ref$mapStateToPropsF === void 0 ? defaultMapStateToPropsFactories : _ref$mapStateToPropsF,
        _ref$mapDispatchToPro = _ref.mapDispatchToPropsFactories,
        mapDispatchToPropsFactories = _ref$mapDispatchToPro === void 0 ? defaultMapDispatchToPropsFactories : _ref$mapDispatchToPro,
        _ref$mergePropsFactor = _ref.mergePropsFactories,
        mergePropsFactories = _ref$mergePropsFactor === void 0 ? defaultMergePropsFactories : _ref$mergePropsFactor,
        _ref$selectorFactory = _ref.selectorFactory,
        selectorFactory = _ref$selectorFactory === void 0 ? finalPropsSelectorFactory : _ref$selectorFactory;

    return function connect(mapStateToProps, mapDispatchToProps, mergeProps, _ref2) {
      if (_ref2 === void 0) {
        _ref2 = {};
      }

      var _ref3 = _ref2,
          _ref3$pure = _ref3.pure,
          pure = _ref3$pure === void 0 ? true : _ref3$pure,
          _ref3$areStatesEqual = _ref3.areStatesEqual,
          areStatesEqual = _ref3$areStatesEqual === void 0 ? strictEqual : _ref3$areStatesEqual,
          _ref3$areOwnPropsEqua = _ref3.areOwnPropsEqual,
          areOwnPropsEqual = _ref3$areOwnPropsEqua === void 0 ? shallowEqual : _ref3$areOwnPropsEqua,
          _ref3$areStatePropsEq = _ref3.areStatePropsEqual,
          areStatePropsEqual = _ref3$areStatePropsEq === void 0 ? shallowEqual : _ref3$areStatePropsEq,
          _ref3$areMergedPropsE = _ref3.areMergedPropsEqual,
          areMergedPropsEqual = _ref3$areMergedPropsE === void 0 ? shallowEqual : _ref3$areMergedPropsE,
          extraOptions = _objectWithoutPropertiesLoose(_ref3, ["pure", "areStatesEqual", "areOwnPropsEqual", "areStatePropsEqual", "areMergedPropsEqual"]);

      var initMapStateToProps = match(mapStateToProps, mapStateToPropsFactories, 'mapStateToProps');
      var initMapDispatchToProps = match(mapDispatchToProps, mapDispatchToPropsFactories, 'mapDispatchToProps');
      var initMergeProps = match(mergeProps, mergePropsFactories, 'mergeProps');
      return connectHOC(selectorFactory, _objectSpread({
        // used in error messages
        methodName: 'connect',
        // used to compute Connect's displayName from the wrapped component's displayName.
        getDisplayName: function getDisplayName(name) {
          return "Connect(" + name + ")";
        },
        // if mapStateToProps is falsy, the Connect component doesn't subscribe to store state changes
        shouldHandleStateChanges: Boolean(mapStateToProps),
        // passed through to selectorFactory
        initMapStateToProps: initMapStateToProps,
        initMapDispatchToProps: initMapDispatchToProps,
        initMergeProps: initMergeProps,
        pure: pure,
        areStatesEqual: areStatesEqual,
        areOwnPropsEqual: areOwnPropsEqual,
        areStatePropsEqual: areStatePropsEqual,
        areMergedPropsEqual: areMergedPropsEqual
      }, extraOptions));
    };
  }
  var connect = createConnect();

  var index = {
    Provider: Provider,
    connect: connect,
    connectAdvanced: connectAdvanced
  };

  return index;

})));
//# sourceMappingURL=index.js.map