adds integrations with bookish-server, the books API and the google books API, adds functionality for library, searching for books, and displaying renters registered in the system

This commit is contained in:
David Lick
2020-05-28 22:08:27 -04:00
parent 888dec3402
commit a06b4d70ab
337 changed files with 17276 additions and 91 deletions
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All notable changes are described on the [Releases](https://github.com/reduxjs/react-redux/releases) page.
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The MIT License (MIT)
Copyright (c) 2015-present Dan Abramov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
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React Redux
=========================
Official React bindings for [Redux](https://github.com/reduxjs/redux).
Performant and flexible.
[![build status](https://img.shields.io/travis/reduxjs/react-redux/master.svg?style=flat-square)](https://travis-ci.org/reduxjs/react-redux) [![npm version](https://img.shields.io/npm/v/react-redux.svg?style=flat-square)](https://www.npmjs.com/package/react-redux)
[![npm downloads](https://img.shields.io/npm/dm/react-redux.svg?style=flat-square)](https://www.npmjs.com/package/react-redux)
[![redux channel on discord](https://img.shields.io/badge/discord-redux@reactiflux-61DAFB.svg?style=flat-square)](http://www.reactiflux.com)
## Installation
React Redux requires **React 16.8.3 or later.**
```
npm install --save react-redux
```
This assumes that youre using [npm](http://npmjs.com/) package manager
with a module bundler like [Webpack](https://webpack.js.org/) or
[Browserify](http://browserify.org/) to consume [CommonJS
modules](https://webpack.js.org/api/module-methods/#commonjs).
If you dont yet use [npm](http://npmjs.com/) or a modern module bundler, and would rather prefer a single-file [UMD](https://github.com/umdjs/umd) build that makes `ReactRedux` available as a global object, you can grab a pre-built version from [cdnjs](https://cdnjs.com/libraries/react-redux). We *dont* recommend this approach for any serious application, as most of the libraries complementary to Redux are only available on [npm](http://npmjs.com/).
## React Native
As of React Native 0.18, React Redux 5.x should work with React Native. If you have any issues with React Redux 5.x on React Native, run `npm ls react` and make sure you dont have a duplicate React installation in your `node_modules`. We recommend that you use `npm@3.x` which is better at avoiding these kinds of issues.
## Documentation
The React Redux docs are now published at **https://react-redux.js.org** .
We're currently expanding and rewriting our docs content - check back soon for more updates!
## How Does It Work?
We do a deep dive on how React Redux works in [this readthesource episode](https://www.youtube.com/watch?v=VJ38wSFbM3A).
Also, the post [The History and Implementation of React-Redux](https://blog.isquaredsoftware.com/2018/11/react-redux-history-implementation/)
explains what it does, how it works, and how the API and implementation have evolved over time.
Enjoy!
## License
[MIT](LICENSE.md)
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import Provider from './components/Provider';
import connectAdvanced from './components/connectAdvanced';
import { ReactReduxContext } from './components/Context';
import connect from './connect/connect';
import { useDispatch } from './hooks/useDispatch';
import { useSelector } from './hooks/useSelector';
import { useStore } from './hooks/useStore';
import { getBatch } from './utils/batch';
import shallowEqual from './utils/shallowEqual'; // For other renderers besides ReactDOM and React Native, use the default noop batch function
var batch = getBatch();
export { Provider, connectAdvanced, ReactReduxContext, connect, batch, useDispatch, useSelector, useStore, shallowEqual };
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import React from 'react';
export var ReactReduxContext =
/*#__PURE__*/
React.createContext(null);
if (process.env.NODE_ENV !== 'production') {
ReactReduxContext.displayName = 'ReactRedux';
}
export default ReactReduxContext;
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import React, { useMemo, useEffect } from 'react';
import PropTypes from 'prop-types';
import { ReactReduxContext } from './Context';
import Subscription from '../utils/Subscription';
function Provider(_ref) {
var store = _ref.store,
context = _ref.context,
children = _ref.children;
var contextValue = useMemo(function () {
var subscription = new Subscription(store);
subscription.onStateChange = subscription.notifyNestedSubs;
return {
store: store,
subscription: subscription
};
}, [store]);
var previousState = useMemo(function () {
return store.getState();
}, [store]);
useEffect(function () {
var subscription = contextValue.subscription;
subscription.trySubscribe();
if (previousState !== store.getState()) {
subscription.notifyNestedSubs();
}
return function () {
subscription.tryUnsubscribe();
subscription.onStateChange = null;
};
}, [contextValue, previousState]);
var Context = context || ReactReduxContext;
return React.createElement(Context.Provider, {
value: contextValue
}, children);
}
if (process.env.NODE_ENV !== 'production') {
Provider.propTypes = {
store: PropTypes.shape({
subscribe: PropTypes.func.isRequired,
dispatch: PropTypes.func.isRequired,
getState: PropTypes.func.isRequired
}),
context: PropTypes.object,
children: PropTypes.any
};
}
export default Provider;
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import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import hoistStatics from 'hoist-non-react-statics';
import React, { useContext, useMemo, useRef, useReducer } from 'react';
import { isValidElementType, isContextConsumer } from 'react-is';
import Subscription from '../utils/Subscription';
import { useIsomorphicLayoutEffect } from '../utils/useIsomorphicLayoutEffect';
import { ReactReduxContext } from './Context'; // Define some constant arrays just to avoid re-creating these
var EMPTY_ARRAY = [];
var NO_SUBSCRIPTION_ARRAY = [null, null];
var stringifyComponent = function stringifyComponent(Comp) {
try {
return JSON.stringify(Comp);
} catch (err) {
return String(Comp);
}
};
function storeStateUpdatesReducer(state, action) {
var updateCount = state[1];
return [action.payload, updateCount + 1];
}
function useIsomorphicLayoutEffectWithArgs(effectFunc, effectArgs, dependencies) {
useIsomorphicLayoutEffect(function () {
return effectFunc.apply(void 0, effectArgs);
}, dependencies);
}
function captureWrapperProps(lastWrapperProps, lastChildProps, renderIsScheduled, wrapperProps, actualChildProps, childPropsFromStoreUpdate, notifyNestedSubs) {
// We want to capture the wrapper props and child props we used for later comparisons
lastWrapperProps.current = wrapperProps;
lastChildProps.current = actualChildProps;
renderIsScheduled.current = false; // If the render was from a store update, clear out that reference and cascade the subscriber update
if (childPropsFromStoreUpdate.current) {
childPropsFromStoreUpdate.current = null;
notifyNestedSubs();
}
}
function subscribeUpdates(shouldHandleStateChanges, store, subscription, childPropsSelector, lastWrapperProps, lastChildProps, renderIsScheduled, childPropsFromStoreUpdate, notifyNestedSubs, forceComponentUpdateDispatch) {
// If we're not subscribed to the store, nothing to do here
if (!shouldHandleStateChanges) return; // Capture values for checking if and when this component unmounts
var didUnsubscribe = false;
var lastThrownError = null; // We'll run this callback every time a store subscription update propagates to this component
var checkForUpdates = function checkForUpdates() {
if (didUnsubscribe) {
// Don't run stale listeners.
// Redux doesn't guarantee unsubscriptions happen until next dispatch.
return;
}
var latestStoreState = store.getState();
var newChildProps, error;
try {
// Actually run the selector with the most recent store state and wrapper props
// to determine what the child props should be
newChildProps = childPropsSelector(latestStoreState, lastWrapperProps.current);
} catch (e) {
error = e;
lastThrownError = e;
}
if (!error) {
lastThrownError = null;
} // If the child props haven't changed, nothing to do here - cascade the subscription update
if (newChildProps === lastChildProps.current) {
if (!renderIsScheduled.current) {
notifyNestedSubs();
}
} else {
// Save references to the new child props. Note that we track the "child props from store update"
// as a ref instead of a useState/useReducer because we need a way to determine if that value has
// been processed. If this went into useState/useReducer, we couldn't clear out the value without
// forcing another re-render, which we don't want.
lastChildProps.current = newChildProps;
childPropsFromStoreUpdate.current = newChildProps;
renderIsScheduled.current = true; // If the child props _did_ change (or we caught an error), this wrapper component needs to re-render
forceComponentUpdateDispatch({
type: 'STORE_UPDATED',
payload: {
error: error
}
});
}
}; // Actually subscribe to the nearest connected ancestor (or store)
subscription.onStateChange = checkForUpdates;
subscription.trySubscribe(); // Pull data from the store after first render in case the store has
// changed since we began.
checkForUpdates();
var unsubscribeWrapper = function unsubscribeWrapper() {
didUnsubscribe = true;
subscription.tryUnsubscribe();
subscription.onStateChange = null;
if (lastThrownError) {
// It's possible that we caught an error due to a bad mapState function, but the
// parent re-rendered without this component and we're about to unmount.
// This shouldn't happen as long as we do top-down subscriptions correctly, but
// if we ever do those wrong, this throw will surface the error in our tests.
// In that case, throw the error from here so it doesn't get lost.
throw lastThrownError;
}
};
return unsubscribeWrapper;
}
var initStateUpdates = function initStateUpdates() {
return [null, 0];
};
export default 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) {
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,
_ref2$forwardRef = _ref2.forwardRef,
forwardRef = _ref2$forwardRef === void 0 ? false : _ref2$forwardRef,
_ref2$context = _ref2.context,
context = _ref2$context === void 0 ? ReactReduxContext : _ref2$context,
connectOptions = _objectWithoutPropertiesLoose(_ref2, ["getDisplayName", "methodName", "renderCountProp", "shouldHandleStateChanges", "storeKey", "withRef", "forwardRef", "context"]);
if (process.env.NODE_ENV !== 'production') {
if (renderCountProp !== undefined) {
throw new Error("renderCountProp is removed. render counting is built into the latest React Dev Tools profiling extension");
}
if (withRef) {
throw new Error('withRef is removed. To access the wrapped instance, use a ref on the connected component');
}
var customStoreWarningMessage = 'To use a custom Redux store for specific components, create a custom React context with ' + "React.createContext(), and pass the context object to React Redux's Provider and specific components" + ' like: <Provider context={MyContext}><ConnectedComponent context={MyContext} /></Provider>. ' + 'You may also pass a {context : MyContext} option to connect';
if (storeKey !== 'store') {
throw new Error('storeKey has been removed and does not do anything. ' + customStoreWarningMessage);
}
}
var Context = context;
return function wrapWithConnect(WrappedComponent) {
if (process.env.NODE_ENV !== 'production' && !isValidElementType(WrappedComponent)) {
throw new Error("You must pass a component to the function returned by " + (methodName + ". Instead received " + stringifyComponent(WrappedComponent)));
}
var wrappedComponentName = WrappedComponent.displayName || WrappedComponent.name || 'Component';
var displayName = getDisplayName(wrappedComponentName);
var selectorFactoryOptions = _extends({}, connectOptions, {
getDisplayName: getDisplayName,
methodName: methodName,
renderCountProp: renderCountProp,
shouldHandleStateChanges: shouldHandleStateChanges,
storeKey: storeKey,
displayName: displayName,
wrappedComponentName: wrappedComponentName,
WrappedComponent: WrappedComponent
});
var pure = connectOptions.pure;
function createChildSelector(store) {
return selectorFactory(store.dispatch, selectorFactoryOptions);
} // If we aren't running in "pure" mode, we don't want to memoize values.
// To avoid conditionally calling hooks, we fall back to a tiny wrapper
// that just executes the given callback immediately.
var usePureOnlyMemo = pure ? useMemo : function (callback) {
return callback();
};
function ConnectFunction(props) {
var _useMemo = useMemo(function () {
// Distinguish between actual "data" props that were passed to the wrapper component,
// and values needed to control behavior (forwarded refs, alternate context instances).
// To maintain the wrapperProps object reference, memoize this destructuring.
var forwardedRef = props.forwardedRef,
wrapperProps = _objectWithoutPropertiesLoose(props, ["forwardedRef"]);
return [props.context, forwardedRef, wrapperProps];
}, [props]),
propsContext = _useMemo[0],
forwardedRef = _useMemo[1],
wrapperProps = _useMemo[2];
var ContextToUse = useMemo(function () {
// Users may optionally pass in a custom context instance to use instead of our ReactReduxContext.
// Memoize the check that determines which context instance we should use.
return propsContext && propsContext.Consumer && isContextConsumer(React.createElement(propsContext.Consumer, null)) ? propsContext : Context;
}, [propsContext, Context]); // Retrieve the store and ancestor subscription via context, if available
var contextValue = useContext(ContextToUse); // The store _must_ exist as either a prop or in context.
// We'll check to see if it _looks_ like a Redux store first.
// This allows us to pass through a `store` prop that is just a plain value.
var didStoreComeFromProps = Boolean(props.store) && Boolean(props.store.getState) && Boolean(props.store.dispatch);
var didStoreComeFromContext = Boolean(contextValue) && Boolean(contextValue.store);
if (process.env.NODE_ENV !== 'production' && !didStoreComeFromProps && !didStoreComeFromContext) {
throw new Error("Could not find \"store\" in the context of " + ("\"" + displayName + "\". Either wrap the root component in a <Provider>, ") + "or pass a custom React context provider to <Provider> and the corresponding " + ("React context consumer to " + displayName + " in connect options."));
} // Based on the previous check, one of these must be true
var store = didStoreComeFromProps ? props.store : contextValue.store;
var childPropsSelector = useMemo(function () {
// The child props selector needs the store reference as an input.
// Re-create this selector whenever the store changes.
return createChildSelector(store);
}, [store]);
var _useMemo2 = useMemo(function () {
if (!shouldHandleStateChanges) return NO_SUBSCRIPTION_ARRAY; // This Subscription'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 subscription = new Subscription(store, didStoreComeFromProps ? null : contextValue.subscription); // `notifyNestedSubs` is duplicated to handle the case where the component is unmounted in
// the middle of the notification loop, where `subscription` will then be null. 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.
var notifyNestedSubs = subscription.notifyNestedSubs.bind(subscription);
return [subscription, notifyNestedSubs];
}, [store, didStoreComeFromProps, contextValue]),
subscription = _useMemo2[0],
notifyNestedSubs = _useMemo2[1]; // Determine what {store, subscription} value should be put into nested context, if necessary,
// and memoize that value to avoid unnecessary context updates.
var overriddenContextValue = useMemo(function () {
if (didStoreComeFromProps) {
// This component is directly subscribed to a store from props.
// We don't want descendants reading from this store - pass down whatever
// the existing context value is from the nearest connected ancestor.
return contextValue;
} // Otherwise, put this component's subscription instance into context, so that
// connected descendants won't update until after this component is done
return _extends({}, contextValue, {
subscription: subscription
});
}, [didStoreComeFromProps, contextValue, subscription]); // We need to force this wrapper component to re-render whenever a Redux store update
// causes a change to the calculated child component props (or we caught an error in mapState)
var _useReducer = useReducer(storeStateUpdatesReducer, EMPTY_ARRAY, initStateUpdates),
_useReducer$ = _useReducer[0],
previousStateUpdateResult = _useReducer$[0],
forceComponentUpdateDispatch = _useReducer[1]; // Propagate any mapState/mapDispatch errors upwards
if (previousStateUpdateResult && previousStateUpdateResult.error) {
throw previousStateUpdateResult.error;
} // Set up refs to coordinate values between the subscription effect and the render logic
var lastChildProps = useRef();
var lastWrapperProps = useRef(wrapperProps);
var childPropsFromStoreUpdate = useRef();
var renderIsScheduled = useRef(false);
var actualChildProps = usePureOnlyMemo(function () {
// Tricky logic here:
// - This render may have been triggered by a Redux store update that produced new child props
// - However, we may have gotten new wrapper props after that
// If we have new child props, and the same wrapper props, we know we should use the new child props as-is.
// But, if we have new wrapper props, those might change the child props, so we have to recalculate things.
// So, we'll use the child props from store update only if the wrapper props are the same as last time.
if (childPropsFromStoreUpdate.current && wrapperProps === lastWrapperProps.current) {
return childPropsFromStoreUpdate.current;
} // TODO We're reading the store directly in render() here. Bad idea?
// This will likely cause Bad Things (TM) to happen in Concurrent Mode.
// Note that we do this because on renders _not_ caused by store updates, we need the latest store state
// to determine what the child props should be.
return childPropsSelector(store.getState(), wrapperProps);
}, [store, previousStateUpdateResult, wrapperProps]); // We need this to execute synchronously every time we re-render. However, React warns
// about useLayoutEffect in SSR, so we try to detect environment and fall back to
// just useEffect instead to avoid the warning, since neither will run anyway.
useIsomorphicLayoutEffectWithArgs(captureWrapperProps, [lastWrapperProps, lastChildProps, renderIsScheduled, wrapperProps, actualChildProps, childPropsFromStoreUpdate, notifyNestedSubs]); // Our re-subscribe logic only runs when the store/subscription setup changes
useIsomorphicLayoutEffectWithArgs(subscribeUpdates, [shouldHandleStateChanges, store, subscription, childPropsSelector, lastWrapperProps, lastChildProps, renderIsScheduled, childPropsFromStoreUpdate, notifyNestedSubs, forceComponentUpdateDispatch], [store, subscription, childPropsSelector]); // Now that all that's done, we can finally try to actually render the child component.
// We memoize the elements for the rendered child component as an optimization.
var renderedWrappedComponent = useMemo(function () {
return React.createElement(WrappedComponent, _extends({}, actualChildProps, {
ref: forwardedRef
}));
}, [forwardedRef, WrappedComponent, actualChildProps]); // If React sees the exact same element reference as last time, it bails out of re-rendering
// that child, same as if it was wrapped in React.memo() or returned false from shouldComponentUpdate.
var renderedChild = useMemo(function () {
if (shouldHandleStateChanges) {
// If this component is subscribed to store updates, we need to pass its own
// subscription instance down to our descendants. That means rendering the same
// Context instance, and putting a different value into the context.
return React.createElement(ContextToUse.Provider, {
value: overriddenContextValue
}, renderedWrappedComponent);
}
return renderedWrappedComponent;
}, [ContextToUse, renderedWrappedComponent, overriddenContextValue]);
return renderedChild;
} // If we're in "pure" mode, ensure our wrapper component only re-renders when incoming props have changed.
var Connect = pure ? React.memo(ConnectFunction) : ConnectFunction;
Connect.WrappedComponent = WrappedComponent;
Connect.displayName = displayName;
if (forwardRef) {
var forwarded = React.forwardRef(function forwardConnectRef(props, ref) {
return React.createElement(Connect, _extends({}, props, {
forwardedRef: ref
}));
});
forwarded.displayName = displayName;
forwarded.WrappedComponent = WrappedComponent;
return hoistStatics(forwarded, WrappedComponent);
}
return hoistStatics(Connect, WrappedComponent);
};
}
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import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import connectAdvanced from '../components/connectAdvanced';
import shallowEqual from '../utils/shallowEqual';
import defaultMapDispatchToPropsFactories from './mapDispatchToProps';
import defaultMapStateToPropsFactories from './mapStateToProps';
import defaultMergePropsFactories from './mergeProps';
import defaultSelectorFactory from './selectorFactory';
/*
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
export 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$selectorFactory === void 0 ? defaultSelectorFactory : _ref$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, _extends({
// 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));
};
}
export default
/*#__PURE__*/
createConnect();
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import { bindActionCreators } from 'redux';
import { wrapMapToPropsConstant, wrapMapToPropsFunc } from './wrapMapToProps';
export function whenMapDispatchToPropsIsFunction(mapDispatchToProps) {
return typeof mapDispatchToProps === 'function' ? wrapMapToPropsFunc(mapDispatchToProps, 'mapDispatchToProps') : undefined;
}
export function whenMapDispatchToPropsIsMissing(mapDispatchToProps) {
return !mapDispatchToProps ? wrapMapToPropsConstant(function (dispatch) {
return {
dispatch: dispatch
};
}) : undefined;
}
export function whenMapDispatchToPropsIsObject(mapDispatchToProps) {
return mapDispatchToProps && typeof mapDispatchToProps === 'object' ? wrapMapToPropsConstant(function (dispatch) {
return bindActionCreators(mapDispatchToProps, dispatch);
}) : undefined;
}
export default [whenMapDispatchToPropsIsFunction, whenMapDispatchToPropsIsMissing, whenMapDispatchToPropsIsObject];
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import { wrapMapToPropsConstant, wrapMapToPropsFunc } from './wrapMapToProps';
export function whenMapStateToPropsIsFunction(mapStateToProps) {
return typeof mapStateToProps === 'function' ? wrapMapToPropsFunc(mapStateToProps, 'mapStateToProps') : undefined;
}
export function whenMapStateToPropsIsMissing(mapStateToProps) {
return !mapStateToProps ? wrapMapToPropsConstant(function () {
return {};
}) : undefined;
}
export default [whenMapStateToPropsIsFunction, whenMapStateToPropsIsMissing];
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import _extends from "@babel/runtime/helpers/esm/extends";
import verifyPlainObject from '../utils/verifyPlainObject';
export function defaultMergeProps(stateProps, dispatchProps, ownProps) {
return _extends({}, ownProps, {}, stateProps, {}, dispatchProps);
}
export 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;
if (process.env.NODE_ENV !== 'production') verifyPlainObject(mergedProps, displayName, 'mergeProps');
}
return mergedProps;
};
};
}
export function whenMergePropsIsFunction(mergeProps) {
return typeof mergeProps === 'function' ? wrapMergePropsFunc(mergeProps) : undefined;
}
export function whenMergePropsIsOmitted(mergeProps) {
return !mergeProps ? function () {
return defaultMergeProps;
} : undefined;
}
export default [whenMergePropsIsFunction, whenMergePropsIsOmitted];
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import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import verifySubselectors from './verifySubselectors';
export function impureFinalPropsSelectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch) {
return function impureFinalPropsSelector(state, ownProps) {
return mergeProps(mapStateToProps(state, ownProps), mapDispatchToProps(dispatch, ownProps), ownProps);
};
}
export 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.
export default 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);
if (process.env.NODE_ENV !== 'production') {
verifySubselectors(mapStateToProps, mapDispatchToProps, mergeProps, options.displayName);
}
var selectorFactory = options.pure ? pureFinalPropsSelectorFactory : impureFinalPropsSelectorFactory;
return selectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch, options);
}
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import warning from '../utils/warning';
function verify(selector, methodName, displayName) {
if (!selector) {
throw new Error("Unexpected value for " + methodName + " in " + displayName + ".");
} else if (methodName === 'mapStateToProps' || methodName === 'mapDispatchToProps') {
if (!Object.prototype.hasOwnProperty.call(selector, 'dependsOnOwnProps')) {
warning("The selector for " + methodName + " of " + displayName + " did not specify a value for dependsOnOwnProps.");
}
}
}
export default function verifySubselectors(mapStateToProps, mapDispatchToProps, mergeProps, displayName) {
verify(mapStateToProps, 'mapStateToProps', displayName);
verify(mapDispatchToProps, 'mapDispatchToProps', displayName);
verify(mergeProps, 'mergeProps', displayName);
}
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import verifyPlainObject from '../utils/verifyPlainObject';
export 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..
export 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.
//
export 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);
}
if (process.env.NODE_ENV !== 'production') verifyPlainObject(props, displayName, methodName);
return props;
};
return proxy;
};
}
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import { ReactReduxContext } from '../components/Context';
import { useStore as useDefaultStore, createStoreHook } from './useStore';
/**
* Hook factory, which creates a `useDispatch` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useDispatch` hook bound to the specified context.
*/
export function createDispatchHook(context) {
if (context === void 0) {
context = ReactReduxContext;
}
var useStore = context === ReactReduxContext ? useDefaultStore : createStoreHook(context);
return function useDispatch() {
var store = useStore();
return store.dispatch;
};
}
/**
* A hook to access the redux `dispatch` function.
*
* @returns {any|function} redux store's `dispatch` function
*
* @example
*
* import React, { useCallback } from 'react'
* import { useDispatch } from 'react-redux'
*
* export const CounterComponent = ({ value }) => {
* const dispatch = useDispatch()
* const increaseCounter = useCallback(() => dispatch({ type: 'increase-counter' }), [])
* return (
* <div>
* <span>{value}</span>
* <button onClick={increaseCounter}>Increase counter</button>
* </div>
* )
* }
*/
export var useDispatch =
/*#__PURE__*/
createDispatchHook();
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import { useContext } from 'react';
import { ReactReduxContext } from '../components/Context';
/**
* A hook to access the value of the `ReactReduxContext`. This is a low-level
* hook that you should usually not need to call directly.
*
* @returns {any} the value of the `ReactReduxContext`
*
* @example
*
* import React from 'react'
* import { useReduxContext } from 'react-redux'
*
* export const CounterComponent = ({ value }) => {
* const { store } = useReduxContext()
* return <div>{store.getState()}</div>
* }
*/
export function useReduxContext() {
var contextValue = useContext(ReactReduxContext);
if (process.env.NODE_ENV !== 'production' && !contextValue) {
throw new Error('could not find react-redux context value; please ensure the component is wrapped in a <Provider>');
}
return contextValue;
}
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import { useReducer, useRef, useMemo, useContext } from 'react';
import { useReduxContext as useDefaultReduxContext } from './useReduxContext';
import Subscription from '../utils/Subscription';
import { useIsomorphicLayoutEffect } from '../utils/useIsomorphicLayoutEffect';
import { ReactReduxContext } from '../components/Context';
var refEquality = function refEquality(a, b) {
return a === b;
};
function useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub) {
var _useReducer = useReducer(function (s) {
return s + 1;
}, 0),
forceRender = _useReducer[1];
var subscription = useMemo(function () {
return new Subscription(store, contextSub);
}, [store, contextSub]);
var latestSubscriptionCallbackError = useRef();
var latestSelector = useRef();
var latestSelectedState = useRef();
var selectedState;
try {
if (selector !== latestSelector.current || latestSubscriptionCallbackError.current) {
selectedState = selector(store.getState());
} else {
selectedState = latestSelectedState.current;
}
} catch (err) {
if (latestSubscriptionCallbackError.current) {
err.message += "\nThe error may be correlated with this previous error:\n" + latestSubscriptionCallbackError.current.stack + "\n\n";
}
throw err;
}
useIsomorphicLayoutEffect(function () {
latestSelector.current = selector;
latestSelectedState.current = selectedState;
latestSubscriptionCallbackError.current = undefined;
});
useIsomorphicLayoutEffect(function () {
function checkForUpdates() {
try {
var newSelectedState = latestSelector.current(store.getState());
if (equalityFn(newSelectedState, latestSelectedState.current)) {
return;
}
latestSelectedState.current = newSelectedState;
} catch (err) {
// we ignore all errors here, since when the component
// is re-rendered, the selectors are called again, and
// will throw again, if neither props nor store state
// changed
latestSubscriptionCallbackError.current = err;
}
forceRender({});
}
subscription.onStateChange = checkForUpdates;
subscription.trySubscribe();
checkForUpdates();
return function () {
return subscription.tryUnsubscribe();
};
}, [store, subscription]);
return selectedState;
}
/**
* Hook factory, which creates a `useSelector` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useSelector` hook bound to the specified context.
*/
export function createSelectorHook(context) {
if (context === void 0) {
context = ReactReduxContext;
}
var useReduxContext = context === ReactReduxContext ? useDefaultReduxContext : function () {
return useContext(context);
};
return function useSelector(selector, equalityFn) {
if (equalityFn === void 0) {
equalityFn = refEquality;
}
if (process.env.NODE_ENV !== 'production' && !selector) {
throw new Error("You must pass a selector to useSelectors");
}
var _useReduxContext = useReduxContext(),
store = _useReduxContext.store,
contextSub = _useReduxContext.subscription;
return useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub);
};
}
/**
* A hook to access the redux store's state. This hook takes a selector function
* as an argument. The selector is called with the store state.
*
* This hook takes an optional equality comparison function as the second parameter
* that allows you to customize the way the selected state is compared to determine
* whether the component needs to be re-rendered.
*
* @param {Function} selector the selector function
* @param {Function=} equalityFn the function that will be used to determine equality
*
* @returns {any} the selected state
*
* @example
*
* import React from 'react'
* import { useSelector } from 'react-redux'
*
* export const CounterComponent = () => {
* const counter = useSelector(state => state.counter)
* return <div>{counter}</div>
* }
*/
export var useSelector =
/*#__PURE__*/
createSelectorHook();
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import { useContext } from 'react';
import { ReactReduxContext } from '../components/Context';
import { useReduxContext as useDefaultReduxContext } from './useReduxContext';
/**
* Hook factory, which creates a `useStore` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useStore` hook bound to the specified context.
*/
export function createStoreHook(context) {
if (context === void 0) {
context = ReactReduxContext;
}
var useReduxContext = context === ReactReduxContext ? useDefaultReduxContext : function () {
return useContext(context);
};
return function useStore() {
var _useReduxContext = useReduxContext(),
store = _useReduxContext.store;
return store;
};
}
/**
* A hook to access the redux store.
*
* @returns {any} the redux store
*
* @example
*
* import React from 'react'
* import { useStore } from 'react-redux'
*
* export const ExampleComponent = () => {
* const store = useStore()
* return <div>{store.getState()}</div>
* }
*/
export var useStore =
/*#__PURE__*/
createStoreHook();
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import Provider from './components/Provider';
import connectAdvanced from './components/connectAdvanced';
import { ReactReduxContext } from './components/Context';
import connect from './connect/connect';
import { useDispatch, createDispatchHook } from './hooks/useDispatch';
import { useSelector, createSelectorHook } from './hooks/useSelector';
import { useStore, createStoreHook } from './hooks/useStore';
import { setBatch } from './utils/batch';
import { unstable_batchedUpdates as batch } from './utils/reactBatchedUpdates';
import shallowEqual from './utils/shallowEqual';
setBatch(batch);
export { Provider, connectAdvanced, ReactReduxContext, connect, batch, useDispatch, createDispatchHook, useSelector, createSelectorHook, useStore, createStoreHook, shallowEqual };
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import { getBatch } from './batch'; // 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 nullListeners = {
notify: function notify() {}
};
function createListenerCollection() {
var batch = getBatch();
var first = null;
var last = null;
return {
clear: function clear() {
first = null;
last = null;
},
notify: function notify() {
batch(function () {
var listener = first;
while (listener) {
listener.callback();
listener = listener.next;
}
});
},
get: function get() {
var listeners = [];
var listener = first;
while (listener) {
listeners.push(listener);
listener = listener.next;
}
return listeners;
},
subscribe: function subscribe(callback) {
var isSubscribed = true;
var listener = last = {
callback: callback,
next: null,
prev: last
};
if (listener.prev) {
listener.prev.next = listener;
} else {
first = listener;
}
return function unsubscribe() {
if (!isSubscribed || first === null) return;
isSubscribed = false;
if (listener.next) {
listener.next.prev = listener.prev;
} else {
last = listener.prev;
}
if (listener.prev) {
listener.prev.next = listener.next;
} else {
first = listener.next;
}
};
}
};
}
var Subscription =
/*#__PURE__*/
function () {
function Subscription(store, parentSub) {
this.store = store;
this.parentSub = parentSub;
this.unsubscribe = null;
this.listeners = nullListeners;
this.handleChangeWrapper = this.handleChangeWrapper.bind(this);
}
var _proto = Subscription.prototype;
_proto.addNestedSub = function addNestedSub(listener) {
this.trySubscribe();
return this.listeners.subscribe(listener);
};
_proto.notifyNestedSubs = function notifyNestedSubs() {
this.listeners.notify();
};
_proto.handleChangeWrapper = function handleChangeWrapper() {
if (this.onStateChange) {
this.onStateChange();
}
};
_proto.isSubscribed = function isSubscribed() {
return Boolean(this.unsubscribe);
};
_proto.trySubscribe = function trySubscribe() {
if (!this.unsubscribe) {
this.unsubscribe = this.parentSub ? this.parentSub.addNestedSub(this.handleChangeWrapper) : this.store.subscribe(this.handleChangeWrapper);
this.listeners = createListenerCollection();
}
};
_proto.tryUnsubscribe = function tryUnsubscribe() {
if (this.unsubscribe) {
this.unsubscribe();
this.unsubscribe = null;
this.listeners.clear();
this.listeners = nullListeners;
}
};
return Subscription;
}();
export { Subscription as default };
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// Default to a dummy "batch" implementation that just runs the callback
function defaultNoopBatch(callback) {
callback();
}
var batch = defaultNoopBatch; // Allow injecting another batching function later
export var setBatch = function setBatch(newBatch) {
return batch = newBatch;
}; // Supply a getter just to skip dealing with ESM bindings
export var getBatch = function getBatch() {
return batch;
};
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/**
* @param {any} obj The object to inspect.
* @returns {boolean} True if the argument appears to be a plain object.
*/
export default function isPlainObject(obj) {
if (typeof obj !== 'object' || obj === null) return false;
var proto = Object.getPrototypeOf(obj);
if (proto === null) return true;
var baseProto = proto;
while (Object.getPrototypeOf(baseProto) !== null) {
baseProto = Object.getPrototypeOf(baseProto);
}
return proto === baseProto;
}
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/* eslint-disable import/no-unresolved */
export { unstable_batchedUpdates } from 'react-dom';
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/* eslint-disable import/no-unresolved */
import { unstable_batchedUpdates } from 'react-native';
export { unstable_batchedUpdates };
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function is(x, y) {
if (x === y) {
return x !== 0 || y !== 0 || 1 / x === 1 / y;
} else {
return x !== x && y !== y;
}
}
export default 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 (!Object.prototype.hasOwnProperty.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) {
return false;
}
}
return true;
}
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import { useEffect, useLayoutEffect } from 'react'; // React currently throws a warning when using useLayoutEffect on the server.
// To get around it, we can conditionally useEffect on the server (no-op) and
// useLayoutEffect in the browser. We need useLayoutEffect to ensure the store
// subscription callback always has the selector from the latest render commit
// available, otherwise a store update may happen between render and the effect,
// which may cause missed updates; we also must ensure the store subscription
// is created synchronously, otherwise a store update may occur before the
// subscription is created and an inconsistent state may be observed
export var useIsomorphicLayoutEffect = typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined' ? useLayoutEffect : useEffect;
@@ -0,0 +1,3 @@
import { useLayoutEffect } from 'react'; // Under React Native, we know that we always want to use useLayoutEffect
export var useIsomorphicLayoutEffect = useLayoutEffect;
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import isPlainObject from './isPlainObject';
import warning from './warning';
export default function verifyPlainObject(value, displayName, methodName) {
if (!isPlainObject(value)) {
warning(methodName + "() in " + displayName + " must return a plain object. Instead received " + value + ".");
}
}
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/**
* Prints a warning in the console if it exists.
*
* @param {String} message The warning message.
* @returns {void}
*/
export default function warning(message) {
/* eslint-disable no-console */
if (typeof console !== 'undefined' && typeof console.error === 'function') {
console.error(message);
}
/* eslint-enable no-console */
try {
// This error was thrown as a convenience so that if you enable
// "break on all exceptions" in your console,
// it would pause the execution at this line.
throw new Error(message);
/* eslint-disable no-empty */
} catch (e) {}
/* eslint-enable no-empty */
}
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import { bindActionCreators } from 'redux';
export default function wrapActionCreators(actionCreators) {
return function (dispatch) {
return bindActionCreators(actionCreators, dispatch);
};
}
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.batch = void 0;
var _Provider = _interopRequireDefault(require("./components/Provider"));
exports.Provider = _Provider["default"];
var _connectAdvanced = _interopRequireDefault(require("./components/connectAdvanced"));
exports.connectAdvanced = _connectAdvanced["default"];
var _Context = require("./components/Context");
exports.ReactReduxContext = _Context.ReactReduxContext;
var _connect = _interopRequireDefault(require("./connect/connect"));
exports.connect = _connect["default"];
var _useDispatch = require("./hooks/useDispatch");
exports.useDispatch = _useDispatch.useDispatch;
var _useSelector = require("./hooks/useSelector");
exports.useSelector = _useSelector.useSelector;
var _useStore = require("./hooks/useStore");
exports.useStore = _useStore.useStore;
var _batch = require("./utils/batch");
var _shallowEqual = _interopRequireDefault(require("./utils/shallowEqual"));
exports.shallowEqual = _shallowEqual["default"];
// For other renderers besides ReactDOM and React Native, use the default noop batch function
var batch = (0, _batch.getBatch)();
exports.batch = batch;
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports["default"] = exports.ReactReduxContext = void 0;
var _react = _interopRequireDefault(require("react"));
var ReactReduxContext =
/*#__PURE__*/
_react["default"].createContext(null);
exports.ReactReduxContext = ReactReduxContext;
if (process.env.NODE_ENV !== 'production') {
ReactReduxContext.displayName = 'ReactRedux';
}
var _default = ReactReduxContext;
exports["default"] = _default;
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");
exports.__esModule = true;
exports["default"] = void 0;
var _react = _interopRequireWildcard(require("react"));
var _propTypes = _interopRequireDefault(require("prop-types"));
var _Context = require("./Context");
var _Subscription = _interopRequireDefault(require("../utils/Subscription"));
function Provider(_ref) {
var store = _ref.store,
context = _ref.context,
children = _ref.children;
var contextValue = (0, _react.useMemo)(function () {
var subscription = new _Subscription["default"](store);
subscription.onStateChange = subscription.notifyNestedSubs;
return {
store: store,
subscription: subscription
};
}, [store]);
var previousState = (0, _react.useMemo)(function () {
return store.getState();
}, [store]);
(0, _react.useEffect)(function () {
var subscription = contextValue.subscription;
subscription.trySubscribe();
if (previousState !== store.getState()) {
subscription.notifyNestedSubs();
}
return function () {
subscription.tryUnsubscribe();
subscription.onStateChange = null;
};
}, [contextValue, previousState]);
var Context = context || _Context.ReactReduxContext;
return _react["default"].createElement(Context.Provider, {
value: contextValue
}, children);
}
if (process.env.NODE_ENV !== 'production') {
Provider.propTypes = {
store: _propTypes["default"].shape({
subscribe: _propTypes["default"].func.isRequired,
dispatch: _propTypes["default"].func.isRequired,
getState: _propTypes["default"].func.isRequired
}),
context: _propTypes["default"].object,
children: _propTypes["default"].any
};
}
var _default = Provider;
exports["default"] = _default;
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"use strict";
var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports["default"] = connectAdvanced;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
var _hoistNonReactStatics = _interopRequireDefault(require("hoist-non-react-statics"));
var _react = _interopRequireWildcard(require("react"));
var _reactIs = require("react-is");
var _Subscription = _interopRequireDefault(require("../utils/Subscription"));
var _useIsomorphicLayoutEffect = require("../utils/useIsomorphicLayoutEffect");
var _Context = require("./Context");
// Define some constant arrays just to avoid re-creating these
var EMPTY_ARRAY = [];
var NO_SUBSCRIPTION_ARRAY = [null, null];
var stringifyComponent = function stringifyComponent(Comp) {
try {
return JSON.stringify(Comp);
} catch (err) {
return String(Comp);
}
};
function storeStateUpdatesReducer(state, action) {
var updateCount = state[1];
return [action.payload, updateCount + 1];
}
function useIsomorphicLayoutEffectWithArgs(effectFunc, effectArgs, dependencies) {
(0, _useIsomorphicLayoutEffect.useIsomorphicLayoutEffect)(function () {
return effectFunc.apply(void 0, effectArgs);
}, dependencies);
}
function captureWrapperProps(lastWrapperProps, lastChildProps, renderIsScheduled, wrapperProps, actualChildProps, childPropsFromStoreUpdate, notifyNestedSubs) {
// We want to capture the wrapper props and child props we used for later comparisons
lastWrapperProps.current = wrapperProps;
lastChildProps.current = actualChildProps;
renderIsScheduled.current = false; // If the render was from a store update, clear out that reference and cascade the subscriber update
if (childPropsFromStoreUpdate.current) {
childPropsFromStoreUpdate.current = null;
notifyNestedSubs();
}
}
function subscribeUpdates(shouldHandleStateChanges, store, subscription, childPropsSelector, lastWrapperProps, lastChildProps, renderIsScheduled, childPropsFromStoreUpdate, notifyNestedSubs, forceComponentUpdateDispatch) {
// If we're not subscribed to the store, nothing to do here
if (!shouldHandleStateChanges) return; // Capture values for checking if and when this component unmounts
var didUnsubscribe = false;
var lastThrownError = null; // We'll run this callback every time a store subscription update propagates to this component
var checkForUpdates = function checkForUpdates() {
if (didUnsubscribe) {
// Don't run stale listeners.
// Redux doesn't guarantee unsubscriptions happen until next dispatch.
return;
}
var latestStoreState = store.getState();
var newChildProps, error;
try {
// Actually run the selector with the most recent store state and wrapper props
// to determine what the child props should be
newChildProps = childPropsSelector(latestStoreState, lastWrapperProps.current);
} catch (e) {
error = e;
lastThrownError = e;
}
if (!error) {
lastThrownError = null;
} // If the child props haven't changed, nothing to do here - cascade the subscription update
if (newChildProps === lastChildProps.current) {
if (!renderIsScheduled.current) {
notifyNestedSubs();
}
} else {
// Save references to the new child props. Note that we track the "child props from store update"
// as a ref instead of a useState/useReducer because we need a way to determine if that value has
// been processed. If this went into useState/useReducer, we couldn't clear out the value without
// forcing another re-render, which we don't want.
lastChildProps.current = newChildProps;
childPropsFromStoreUpdate.current = newChildProps;
renderIsScheduled.current = true; // If the child props _did_ change (or we caught an error), this wrapper component needs to re-render
forceComponentUpdateDispatch({
type: 'STORE_UPDATED',
payload: {
error: error
}
});
}
}; // Actually subscribe to the nearest connected ancestor (or store)
subscription.onStateChange = checkForUpdates;
subscription.trySubscribe(); // Pull data from the store after first render in case the store has
// changed since we began.
checkForUpdates();
var unsubscribeWrapper = function unsubscribeWrapper() {
didUnsubscribe = true;
subscription.tryUnsubscribe();
subscription.onStateChange = null;
if (lastThrownError) {
// It's possible that we caught an error due to a bad mapState function, but the
// parent re-rendered without this component and we're about to unmount.
// This shouldn't happen as long as we do top-down subscriptions correctly, but
// if we ever do those wrong, this throw will surface the error in our tests.
// In that case, throw the error from here so it doesn't get lost.
throw lastThrownError;
}
};
return unsubscribeWrapper;
}
var initStateUpdates = function initStateUpdates() {
return [null, 0];
};
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) {
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$withRef,
_ref2$forwardRef = _ref2.forwardRef,
forwardRef = _ref2$forwardRef === void 0 ? false : _ref2$forwardRef,
_ref2$context = _ref2.context,
context = _ref2$context === void 0 ? _Context.ReactReduxContext : _ref2$context,
connectOptions = (0, _objectWithoutPropertiesLoose2["default"])(_ref2, ["getDisplayName", "methodName", "renderCountProp", "shouldHandleStateChanges", "storeKey", "withRef", "forwardRef", "context"]);
if (process.env.NODE_ENV !== 'production') {
if (renderCountProp !== undefined) {
throw new Error("renderCountProp is removed. render counting is built into the latest React Dev Tools profiling extension");
}
if (withRef) {
throw new Error('withRef is removed. To access the wrapped instance, use a ref on the connected component');
}
var customStoreWarningMessage = 'To use a custom Redux store for specific components, create a custom React context with ' + "React.createContext(), and pass the context object to React Redux's Provider and specific components" + ' like: <Provider context={MyContext}><ConnectedComponent context={MyContext} /></Provider>. ' + 'You may also pass a {context : MyContext} option to connect';
if (storeKey !== 'store') {
throw new Error('storeKey has been removed and does not do anything. ' + customStoreWarningMessage);
}
}
var Context = context;
return function wrapWithConnect(WrappedComponent) {
if (process.env.NODE_ENV !== 'production' && !(0, _reactIs.isValidElementType)(WrappedComponent)) {
throw new Error("You must pass a component to the function returned by " + (methodName + ". Instead received " + stringifyComponent(WrappedComponent)));
}
var wrappedComponentName = WrappedComponent.displayName || WrappedComponent.name || 'Component';
var displayName = getDisplayName(wrappedComponentName);
var selectorFactoryOptions = (0, _extends2["default"])({}, connectOptions, {
getDisplayName: getDisplayName,
methodName: methodName,
renderCountProp: renderCountProp,
shouldHandleStateChanges: shouldHandleStateChanges,
storeKey: storeKey,
displayName: displayName,
wrappedComponentName: wrappedComponentName,
WrappedComponent: WrappedComponent
});
var pure = connectOptions.pure;
function createChildSelector(store) {
return selectorFactory(store.dispatch, selectorFactoryOptions);
} // If we aren't running in "pure" mode, we don't want to memoize values.
// To avoid conditionally calling hooks, we fall back to a tiny wrapper
// that just executes the given callback immediately.
var usePureOnlyMemo = pure ? _react.useMemo : function (callback) {
return callback();
};
function ConnectFunction(props) {
var _useMemo = (0, _react.useMemo)(function () {
// Distinguish between actual "data" props that were passed to the wrapper component,
// and values needed to control behavior (forwarded refs, alternate context instances).
// To maintain the wrapperProps object reference, memoize this destructuring.
var forwardedRef = props.forwardedRef,
wrapperProps = (0, _objectWithoutPropertiesLoose2["default"])(props, ["forwardedRef"]);
return [props.context, forwardedRef, wrapperProps];
}, [props]),
propsContext = _useMemo[0],
forwardedRef = _useMemo[1],
wrapperProps = _useMemo[2];
var ContextToUse = (0, _react.useMemo)(function () {
// Users may optionally pass in a custom context instance to use instead of our ReactReduxContext.
// Memoize the check that determines which context instance we should use.
return propsContext && propsContext.Consumer && (0, _reactIs.isContextConsumer)(_react["default"].createElement(propsContext.Consumer, null)) ? propsContext : Context;
}, [propsContext, Context]); // Retrieve the store and ancestor subscription via context, if available
var contextValue = (0, _react.useContext)(ContextToUse); // The store _must_ exist as either a prop or in context.
// We'll check to see if it _looks_ like a Redux store first.
// This allows us to pass through a `store` prop that is just a plain value.
var didStoreComeFromProps = Boolean(props.store) && Boolean(props.store.getState) && Boolean(props.store.dispatch);
var didStoreComeFromContext = Boolean(contextValue) && Boolean(contextValue.store);
if (process.env.NODE_ENV !== 'production' && !didStoreComeFromProps && !didStoreComeFromContext) {
throw new Error("Could not find \"store\" in the context of " + ("\"" + displayName + "\". Either wrap the root component in a <Provider>, ") + "or pass a custom React context provider to <Provider> and the corresponding " + ("React context consumer to " + displayName + " in connect options."));
} // Based on the previous check, one of these must be true
var store = didStoreComeFromProps ? props.store : contextValue.store;
var childPropsSelector = (0, _react.useMemo)(function () {
// The child props selector needs the store reference as an input.
// Re-create this selector whenever the store changes.
return createChildSelector(store);
}, [store]);
var _useMemo2 = (0, _react.useMemo)(function () {
if (!shouldHandleStateChanges) return NO_SUBSCRIPTION_ARRAY; // This Subscription'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 subscription = new _Subscription["default"](store, didStoreComeFromProps ? null : contextValue.subscription); // `notifyNestedSubs` is duplicated to handle the case where the component is unmounted in
// the middle of the notification loop, where `subscription` will then be null. 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.
var notifyNestedSubs = subscription.notifyNestedSubs.bind(subscription);
return [subscription, notifyNestedSubs];
}, [store, didStoreComeFromProps, contextValue]),
subscription = _useMemo2[0],
notifyNestedSubs = _useMemo2[1]; // Determine what {store, subscription} value should be put into nested context, if necessary,
// and memoize that value to avoid unnecessary context updates.
var overriddenContextValue = (0, _react.useMemo)(function () {
if (didStoreComeFromProps) {
// This component is directly subscribed to a store from props.
// We don't want descendants reading from this store - pass down whatever
// the existing context value is from the nearest connected ancestor.
return contextValue;
} // Otherwise, put this component's subscription instance into context, so that
// connected descendants won't update until after this component is done
return (0, _extends2["default"])({}, contextValue, {
subscription: subscription
});
}, [didStoreComeFromProps, contextValue, subscription]); // We need to force this wrapper component to re-render whenever a Redux store update
// causes a change to the calculated child component props (or we caught an error in mapState)
var _useReducer = (0, _react.useReducer)(storeStateUpdatesReducer, EMPTY_ARRAY, initStateUpdates),
_useReducer$ = _useReducer[0],
previousStateUpdateResult = _useReducer$[0],
forceComponentUpdateDispatch = _useReducer[1]; // Propagate any mapState/mapDispatch errors upwards
if (previousStateUpdateResult && previousStateUpdateResult.error) {
throw previousStateUpdateResult.error;
} // Set up refs to coordinate values between the subscription effect and the render logic
var lastChildProps = (0, _react.useRef)();
var lastWrapperProps = (0, _react.useRef)(wrapperProps);
var childPropsFromStoreUpdate = (0, _react.useRef)();
var renderIsScheduled = (0, _react.useRef)(false);
var actualChildProps = usePureOnlyMemo(function () {
// Tricky logic here:
// - This render may have been triggered by a Redux store update that produced new child props
// - However, we may have gotten new wrapper props after that
// If we have new child props, and the same wrapper props, we know we should use the new child props as-is.
// But, if we have new wrapper props, those might change the child props, so we have to recalculate things.
// So, we'll use the child props from store update only if the wrapper props are the same as last time.
if (childPropsFromStoreUpdate.current && wrapperProps === lastWrapperProps.current) {
return childPropsFromStoreUpdate.current;
} // TODO We're reading the store directly in render() here. Bad idea?
// This will likely cause Bad Things (TM) to happen in Concurrent Mode.
// Note that we do this because on renders _not_ caused by store updates, we need the latest store state
// to determine what the child props should be.
return childPropsSelector(store.getState(), wrapperProps);
}, [store, previousStateUpdateResult, wrapperProps]); // We need this to execute synchronously every time we re-render. However, React warns
// about useLayoutEffect in SSR, so we try to detect environment and fall back to
// just useEffect instead to avoid the warning, since neither will run anyway.
useIsomorphicLayoutEffectWithArgs(captureWrapperProps, [lastWrapperProps, lastChildProps, renderIsScheduled, wrapperProps, actualChildProps, childPropsFromStoreUpdate, notifyNestedSubs]); // Our re-subscribe logic only runs when the store/subscription setup changes
useIsomorphicLayoutEffectWithArgs(subscribeUpdates, [shouldHandleStateChanges, store, subscription, childPropsSelector, lastWrapperProps, lastChildProps, renderIsScheduled, childPropsFromStoreUpdate, notifyNestedSubs, forceComponentUpdateDispatch], [store, subscription, childPropsSelector]); // Now that all that's done, we can finally try to actually render the child component.
// We memoize the elements for the rendered child component as an optimization.
var renderedWrappedComponent = (0, _react.useMemo)(function () {
return _react["default"].createElement(WrappedComponent, (0, _extends2["default"])({}, actualChildProps, {
ref: forwardedRef
}));
}, [forwardedRef, WrappedComponent, actualChildProps]); // If React sees the exact same element reference as last time, it bails out of re-rendering
// that child, same as if it was wrapped in React.memo() or returned false from shouldComponentUpdate.
var renderedChild = (0, _react.useMemo)(function () {
if (shouldHandleStateChanges) {
// If this component is subscribed to store updates, we need to pass its own
// subscription instance down to our descendants. That means rendering the same
// Context instance, and putting a different value into the context.
return _react["default"].createElement(ContextToUse.Provider, {
value: overriddenContextValue
}, renderedWrappedComponent);
}
return renderedWrappedComponent;
}, [ContextToUse, renderedWrappedComponent, overriddenContextValue]);
return renderedChild;
} // If we're in "pure" mode, ensure our wrapper component only re-renders when incoming props have changed.
var Connect = pure ? _react["default"].memo(ConnectFunction) : ConnectFunction;
Connect.WrappedComponent = WrappedComponent;
Connect.displayName = displayName;
if (forwardRef) {
var forwarded = _react["default"].forwardRef(function forwardConnectRef(props, ref) {
return _react["default"].createElement(Connect, (0, _extends2["default"])({}, props, {
forwardedRef: ref
}));
});
forwarded.displayName = displayName;
forwarded.WrappedComponent = WrappedComponent;
return (0, _hoistNonReactStatics["default"])(forwarded, WrappedComponent);
}
return (0, _hoistNonReactStatics["default"])(Connect, WrappedComponent);
};
}
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.createConnect = createConnect;
exports["default"] = void 0;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
var _connectAdvanced = _interopRequireDefault(require("../components/connectAdvanced"));
var _shallowEqual = _interopRequireDefault(require("../utils/shallowEqual"));
var _mapDispatchToProps = _interopRequireDefault(require("./mapDispatchToProps"));
var _mapStateToProps = _interopRequireDefault(require("./mapStateToProps"));
var _mergeProps = _interopRequireDefault(require("./mergeProps"));
var _selectorFactory = _interopRequireDefault(require("./selectorFactory"));
/*
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$connectHOC === void 0 ? _connectAdvanced["default"] : _ref$connectHOC,
_ref$mapStateToPropsF = _ref.mapStateToPropsFactories,
mapStateToPropsFactories = _ref$mapStateToPropsF === void 0 ? _mapStateToProps["default"] : _ref$mapStateToPropsF,
_ref$mapDispatchToPro = _ref.mapDispatchToPropsFactories,
mapDispatchToPropsFactories = _ref$mapDispatchToPro === void 0 ? _mapDispatchToProps["default"] : _ref$mapDispatchToPro,
_ref$mergePropsFactor = _ref.mergePropsFactories,
mergePropsFactories = _ref$mergePropsFactor === void 0 ? _mergeProps["default"] : _ref$mergePropsFactor,
_ref$selectorFactory = _ref.selectorFactory,
selectorFactory = _ref$selectorFactory === void 0 ? _selectorFactory["default"] : _ref$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["default"] : _ref3$areOwnPropsEqua,
_ref3$areStatePropsEq = _ref3.areStatePropsEqual,
areStatePropsEqual = _ref3$areStatePropsEq === void 0 ? _shallowEqual["default"] : _ref3$areStatePropsEq,
_ref3$areMergedPropsE = _ref3.areMergedPropsEqual,
areMergedPropsEqual = _ref3$areMergedPropsE === void 0 ? _shallowEqual["default"] : _ref3$areMergedPropsE,
extraOptions = (0, _objectWithoutPropertiesLoose2["default"])(_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, (0, _extends2["default"])({
// 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 _default =
/*#__PURE__*/
createConnect();
exports["default"] = _default;
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"use strict";
exports.__esModule = true;
exports.whenMapDispatchToPropsIsFunction = whenMapDispatchToPropsIsFunction;
exports.whenMapDispatchToPropsIsMissing = whenMapDispatchToPropsIsMissing;
exports.whenMapDispatchToPropsIsObject = whenMapDispatchToPropsIsObject;
exports["default"] = void 0;
var _redux = require("redux");
var _wrapMapToProps = require("./wrapMapToProps");
function whenMapDispatchToPropsIsFunction(mapDispatchToProps) {
return typeof mapDispatchToProps === 'function' ? (0, _wrapMapToProps.wrapMapToPropsFunc)(mapDispatchToProps, 'mapDispatchToProps') : undefined;
}
function whenMapDispatchToPropsIsMissing(mapDispatchToProps) {
return !mapDispatchToProps ? (0, _wrapMapToProps.wrapMapToPropsConstant)(function (dispatch) {
return {
dispatch: dispatch
};
}) : undefined;
}
function whenMapDispatchToPropsIsObject(mapDispatchToProps) {
return mapDispatchToProps && typeof mapDispatchToProps === 'object' ? (0, _wrapMapToProps.wrapMapToPropsConstant)(function (dispatch) {
return (0, _redux.bindActionCreators)(mapDispatchToProps, dispatch);
}) : undefined;
}
var _default = [whenMapDispatchToPropsIsFunction, whenMapDispatchToPropsIsMissing, whenMapDispatchToPropsIsObject];
exports["default"] = _default;
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"use strict";
exports.__esModule = true;
exports.whenMapStateToPropsIsFunction = whenMapStateToPropsIsFunction;
exports.whenMapStateToPropsIsMissing = whenMapStateToPropsIsMissing;
exports["default"] = void 0;
var _wrapMapToProps = require("./wrapMapToProps");
function whenMapStateToPropsIsFunction(mapStateToProps) {
return typeof mapStateToProps === 'function' ? (0, _wrapMapToProps.wrapMapToPropsFunc)(mapStateToProps, 'mapStateToProps') : undefined;
}
function whenMapStateToPropsIsMissing(mapStateToProps) {
return !mapStateToProps ? (0, _wrapMapToProps.wrapMapToPropsConstant)(function () {
return {};
}) : undefined;
}
var _default = [whenMapStateToPropsIsFunction, whenMapStateToPropsIsMissing];
exports["default"] = _default;
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.defaultMergeProps = defaultMergeProps;
exports.wrapMergePropsFunc = wrapMergePropsFunc;
exports.whenMergePropsIsFunction = whenMergePropsIsFunction;
exports.whenMergePropsIsOmitted = whenMergePropsIsOmitted;
exports["default"] = void 0;
var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
var _verifyPlainObject = _interopRequireDefault(require("../utils/verifyPlainObject"));
function defaultMergeProps(stateProps, dispatchProps, ownProps) {
return (0, _extends2["default"])({}, 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;
if (process.env.NODE_ENV !== 'production') (0, _verifyPlainObject["default"])(mergedProps, displayName, 'mergeProps');
}
return mergedProps;
};
};
}
function whenMergePropsIsFunction(mergeProps) {
return typeof mergeProps === 'function' ? wrapMergePropsFunc(mergeProps) : undefined;
}
function whenMergePropsIsOmitted(mergeProps) {
return !mergeProps ? function () {
return defaultMergeProps;
} : undefined;
}
var _default = [whenMergePropsIsFunction, whenMergePropsIsOmitted];
exports["default"] = _default;
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.impureFinalPropsSelectorFactory = impureFinalPropsSelectorFactory;
exports.pureFinalPropsSelectorFactory = pureFinalPropsSelectorFactory;
exports["default"] = finalPropsSelectorFactory;
var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
var _verifySubselectors = _interopRequireDefault(require("./verifySubselectors"));
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 = (0, _objectWithoutPropertiesLoose2["default"])(_ref2, ["initMapStateToProps", "initMapDispatchToProps", "initMergeProps"]);
var mapStateToProps = initMapStateToProps(dispatch, options);
var mapDispatchToProps = initMapDispatchToProps(dispatch, options);
var mergeProps = initMergeProps(dispatch, options);
if (process.env.NODE_ENV !== 'production') {
(0, _verifySubselectors["default"])(mapStateToProps, mapDispatchToProps, mergeProps, options.displayName);
}
var selectorFactory = options.pure ? pureFinalPropsSelectorFactory : impureFinalPropsSelectorFactory;
return selectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch, options);
}
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports["default"] = verifySubselectors;
var _warning = _interopRequireDefault(require("../utils/warning"));
function verify(selector, methodName, displayName) {
if (!selector) {
throw new Error("Unexpected value for " + methodName + " in " + displayName + ".");
} else if (methodName === 'mapStateToProps' || methodName === 'mapDispatchToProps') {
if (!Object.prototype.hasOwnProperty.call(selector, 'dependsOnOwnProps')) {
(0, _warning["default"])("The selector for " + methodName + " of " + displayName + " did not specify a value for dependsOnOwnProps.");
}
}
}
function verifySubselectors(mapStateToProps, mapDispatchToProps, mergeProps, displayName) {
verify(mapStateToProps, 'mapStateToProps', displayName);
verify(mapDispatchToProps, 'mapDispatchToProps', displayName);
verify(mergeProps, 'mergeProps', displayName);
}
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.wrapMapToPropsConstant = wrapMapToPropsConstant;
exports.getDependsOnOwnProps = getDependsOnOwnProps;
exports.wrapMapToPropsFunc = wrapMapToPropsFunc;
var _verifyPlainObject = _interopRequireDefault(require("../utils/verifyPlainObject"));
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);
}
if (process.env.NODE_ENV !== 'production') (0, _verifyPlainObject["default"])(props, displayName, methodName);
return props;
};
return proxy;
};
}
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"use strict";
exports.__esModule = true;
exports.createDispatchHook = createDispatchHook;
exports.useDispatch = void 0;
var _Context = require("../components/Context");
var _useStore = require("./useStore");
/**
* Hook factory, which creates a `useDispatch` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useDispatch` hook bound to the specified context.
*/
function createDispatchHook(context) {
if (context === void 0) {
context = _Context.ReactReduxContext;
}
var useStore = context === _Context.ReactReduxContext ? _useStore.useStore : (0, _useStore.createStoreHook)(context);
return function useDispatch() {
var store = useStore();
return store.dispatch;
};
}
/**
* A hook to access the redux `dispatch` function.
*
* @returns {any|function} redux store's `dispatch` function
*
* @example
*
* import React, { useCallback } from 'react'
* import { useDispatch } from 'react-redux'
*
* export const CounterComponent = ({ value }) => {
* const dispatch = useDispatch()
* const increaseCounter = useCallback(() => dispatch({ type: 'increase-counter' }), [])
* return (
* <div>
* <span>{value}</span>
* <button onClick={increaseCounter}>Increase counter</button>
* </div>
* )
* }
*/
var useDispatch =
/*#__PURE__*/
createDispatchHook();
exports.useDispatch = useDispatch;
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"use strict";
exports.__esModule = true;
exports.useReduxContext = useReduxContext;
var _react = require("react");
var _Context = require("../components/Context");
/**
* A hook to access the value of the `ReactReduxContext`. This is a low-level
* hook that you should usually not need to call directly.
*
* @returns {any} the value of the `ReactReduxContext`
*
* @example
*
* import React from 'react'
* import { useReduxContext } from 'react-redux'
*
* export const CounterComponent = ({ value }) => {
* const { store } = useReduxContext()
* return <div>{store.getState()}</div>
* }
*/
function useReduxContext() {
var contextValue = (0, _react.useContext)(_Context.ReactReduxContext);
if (process.env.NODE_ENV !== 'production' && !contextValue) {
throw new Error('could not find react-redux context value; please ensure the component is wrapped in a <Provider>');
}
return contextValue;
}
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.createSelectorHook = createSelectorHook;
exports.useSelector = void 0;
var _react = require("react");
var _useReduxContext2 = require("./useReduxContext");
var _Subscription = _interopRequireDefault(require("../utils/Subscription"));
var _useIsomorphicLayoutEffect = require("../utils/useIsomorphicLayoutEffect");
var _Context = require("../components/Context");
var refEquality = function refEquality(a, b) {
return a === b;
};
function useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub) {
var _useReducer = (0, _react.useReducer)(function (s) {
return s + 1;
}, 0),
forceRender = _useReducer[1];
var subscription = (0, _react.useMemo)(function () {
return new _Subscription["default"](store, contextSub);
}, [store, contextSub]);
var latestSubscriptionCallbackError = (0, _react.useRef)();
var latestSelector = (0, _react.useRef)();
var latestSelectedState = (0, _react.useRef)();
var selectedState;
try {
if (selector !== latestSelector.current || latestSubscriptionCallbackError.current) {
selectedState = selector(store.getState());
} else {
selectedState = latestSelectedState.current;
}
} catch (err) {
if (latestSubscriptionCallbackError.current) {
err.message += "\nThe error may be correlated with this previous error:\n" + latestSubscriptionCallbackError.current.stack + "\n\n";
}
throw err;
}
(0, _useIsomorphicLayoutEffect.useIsomorphicLayoutEffect)(function () {
latestSelector.current = selector;
latestSelectedState.current = selectedState;
latestSubscriptionCallbackError.current = undefined;
});
(0, _useIsomorphicLayoutEffect.useIsomorphicLayoutEffect)(function () {
function checkForUpdates() {
try {
var newSelectedState = latestSelector.current(store.getState());
if (equalityFn(newSelectedState, latestSelectedState.current)) {
return;
}
latestSelectedState.current = newSelectedState;
} catch (err) {
// we ignore all errors here, since when the component
// is re-rendered, the selectors are called again, and
// will throw again, if neither props nor store state
// changed
latestSubscriptionCallbackError.current = err;
}
forceRender({});
}
subscription.onStateChange = checkForUpdates;
subscription.trySubscribe();
checkForUpdates();
return function () {
return subscription.tryUnsubscribe();
};
}, [store, subscription]);
return selectedState;
}
/**
* Hook factory, which creates a `useSelector` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useSelector` hook bound to the specified context.
*/
function createSelectorHook(context) {
if (context === void 0) {
context = _Context.ReactReduxContext;
}
var useReduxContext = context === _Context.ReactReduxContext ? _useReduxContext2.useReduxContext : function () {
return (0, _react.useContext)(context);
};
return function useSelector(selector, equalityFn) {
if (equalityFn === void 0) {
equalityFn = refEquality;
}
if (process.env.NODE_ENV !== 'production' && !selector) {
throw new Error("You must pass a selector to useSelectors");
}
var _useReduxContext = useReduxContext(),
store = _useReduxContext.store,
contextSub = _useReduxContext.subscription;
return useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub);
};
}
/**
* A hook to access the redux store's state. This hook takes a selector function
* as an argument. The selector is called with the store state.
*
* This hook takes an optional equality comparison function as the second parameter
* that allows you to customize the way the selected state is compared to determine
* whether the component needs to be re-rendered.
*
* @param {Function} selector the selector function
* @param {Function=} equalityFn the function that will be used to determine equality
*
* @returns {any} the selected state
*
* @example
*
* import React from 'react'
* import { useSelector } from 'react-redux'
*
* export const CounterComponent = () => {
* const counter = useSelector(state => state.counter)
* return <div>{counter}</div>
* }
*/
var useSelector =
/*#__PURE__*/
createSelectorHook();
exports.useSelector = useSelector;
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"use strict";
exports.__esModule = true;
exports.createStoreHook = createStoreHook;
exports.useStore = void 0;
var _react = require("react");
var _Context = require("../components/Context");
var _useReduxContext2 = require("./useReduxContext");
/**
* Hook factory, which creates a `useStore` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useStore` hook bound to the specified context.
*/
function createStoreHook(context) {
if (context === void 0) {
context = _Context.ReactReduxContext;
}
var useReduxContext = context === _Context.ReactReduxContext ? _useReduxContext2.useReduxContext : function () {
return (0, _react.useContext)(context);
};
return function useStore() {
var _useReduxContext = useReduxContext(),
store = _useReduxContext.store;
return store;
};
}
/**
* A hook to access the redux store.
*
* @returns {any} the redux store
*
* @example
*
* import React from 'react'
* import { useStore } from 'react-redux'
*
* export const ExampleComponent = () => {
* const store = useStore()
* return <div>{store.getState()}</div>
* }
*/
var useStore =
/*#__PURE__*/
createStoreHook();
exports.useStore = useStore;
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
var _Provider = _interopRequireDefault(require("./components/Provider"));
exports.Provider = _Provider["default"];
var _connectAdvanced = _interopRequireDefault(require("./components/connectAdvanced"));
exports.connectAdvanced = _connectAdvanced["default"];
var _Context = require("./components/Context");
exports.ReactReduxContext = _Context.ReactReduxContext;
var _connect = _interopRequireDefault(require("./connect/connect"));
exports.connect = _connect["default"];
var _useDispatch = require("./hooks/useDispatch");
exports.useDispatch = _useDispatch.useDispatch;
exports.createDispatchHook = _useDispatch.createDispatchHook;
var _useSelector = require("./hooks/useSelector");
exports.useSelector = _useSelector.useSelector;
exports.createSelectorHook = _useSelector.createSelectorHook;
var _useStore = require("./hooks/useStore");
exports.useStore = _useStore.useStore;
exports.createStoreHook = _useStore.createStoreHook;
var _batch = require("./utils/batch");
var _reactBatchedUpdates = require("./utils/reactBatchedUpdates");
exports.batch = _reactBatchedUpdates.unstable_batchedUpdates;
var _shallowEqual = _interopRequireDefault(require("./utils/shallowEqual"));
exports.shallowEqual = _shallowEqual["default"];
(0, _batch.setBatch)(_reactBatchedUpdates.unstable_batchedUpdates);
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"use strict";
exports.__esModule = true;
exports["default"] = void 0;
var _batch = require("./batch");
// 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 nullListeners = {
notify: function notify() {}
};
function createListenerCollection() {
var batch = (0, _batch.getBatch)();
var first = null;
var last = null;
return {
clear: function clear() {
first = null;
last = null;
},
notify: function notify() {
batch(function () {
var listener = first;
while (listener) {
listener.callback();
listener = listener.next;
}
});
},
get: function get() {
var listeners = [];
var listener = first;
while (listener) {
listeners.push(listener);
listener = listener.next;
}
return listeners;
},
subscribe: function subscribe(callback) {
var isSubscribed = true;
var listener = last = {
callback: callback,
next: null,
prev: last
};
if (listener.prev) {
listener.prev.next = listener;
} else {
first = listener;
}
return function unsubscribe() {
if (!isSubscribed || first === null) return;
isSubscribed = false;
if (listener.next) {
listener.next.prev = listener.prev;
} else {
last = listener.prev;
}
if (listener.prev) {
listener.prev.next = listener.next;
} else {
first = listener.next;
}
};
}
};
}
var Subscription =
/*#__PURE__*/
function () {
function Subscription(store, parentSub) {
this.store = store;
this.parentSub = parentSub;
this.unsubscribe = null;
this.listeners = nullListeners;
this.handleChangeWrapper = this.handleChangeWrapper.bind(this);
}
var _proto = Subscription.prototype;
_proto.addNestedSub = function addNestedSub(listener) {
this.trySubscribe();
return this.listeners.subscribe(listener);
};
_proto.notifyNestedSubs = function notifyNestedSubs() {
this.listeners.notify();
};
_proto.handleChangeWrapper = function handleChangeWrapper() {
if (this.onStateChange) {
this.onStateChange();
}
};
_proto.isSubscribed = function isSubscribed() {
return Boolean(this.unsubscribe);
};
_proto.trySubscribe = function trySubscribe() {
if (!this.unsubscribe) {
this.unsubscribe = this.parentSub ? this.parentSub.addNestedSub(this.handleChangeWrapper) : this.store.subscribe(this.handleChangeWrapper);
this.listeners = createListenerCollection();
}
};
_proto.tryUnsubscribe = function tryUnsubscribe() {
if (this.unsubscribe) {
this.unsubscribe();
this.unsubscribe = null;
this.listeners.clear();
this.listeners = nullListeners;
}
};
return Subscription;
}();
exports["default"] = Subscription;
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"use strict";
exports.__esModule = true;
exports.getBatch = exports.setBatch = void 0;
// Default to a dummy "batch" implementation that just runs the callback
function defaultNoopBatch(callback) {
callback();
}
var batch = defaultNoopBatch; // Allow injecting another batching function later
var setBatch = function setBatch(newBatch) {
return batch = newBatch;
}; // Supply a getter just to skip dealing with ESM bindings
exports.setBatch = setBatch;
var getBatch = function getBatch() {
return batch;
};
exports.getBatch = getBatch;
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"use strict";
exports.__esModule = true;
exports["default"] = isPlainObject;
/**
* @param {any} obj The object to inspect.
* @returns {boolean} True if the argument appears to be a plain object.
*/
function isPlainObject(obj) {
if (typeof obj !== 'object' || obj === null) return false;
var proto = Object.getPrototypeOf(obj);
if (proto === null) return true;
var baseProto = proto;
while (Object.getPrototypeOf(baseProto) !== null) {
baseProto = Object.getPrototypeOf(baseProto);
}
return proto === baseProto;
}
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"use strict";
exports.__esModule = true;
exports.unstable_batchedUpdates = void 0;
var _reactDom = require("react-dom");
exports.unstable_batchedUpdates = _reactDom.unstable_batchedUpdates;
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"use strict";
exports.__esModule = true;
var _reactNative = require("react-native");
exports.unstable_batchedUpdates = _reactNative.unstable_batchedUpdates;
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"use strict";
exports.__esModule = true;
exports["default"] = shallowEqual;
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 (!Object.prototype.hasOwnProperty.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) {
return false;
}
}
return true;
}
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"use strict";
exports.__esModule = true;
exports.useIsomorphicLayoutEffect = void 0;
var _react = require("react");
// React currently throws a warning when using useLayoutEffect on the server.
// To get around it, we can conditionally useEffect on the server (no-op) and
// useLayoutEffect in the browser. We need useLayoutEffect to ensure the store
// subscription callback always has the selector from the latest render commit
// available, otherwise a store update may happen between render and the effect,
// which may cause missed updates; we also must ensure the store subscription
// is created synchronously, otherwise a store update may occur before the
// subscription is created and an inconsistent state may be observed
var useIsomorphicLayoutEffect = typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined' ? _react.useLayoutEffect : _react.useEffect;
exports.useIsomorphicLayoutEffect = useIsomorphicLayoutEffect;
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"use strict";
exports.__esModule = true;
exports.useIsomorphicLayoutEffect = void 0;
var _react = require("react");
// Under React Native, we know that we always want to use useLayoutEffect
var useIsomorphicLayoutEffect = _react.useLayoutEffect;
exports.useIsomorphicLayoutEffect = useIsomorphicLayoutEffect;
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports["default"] = verifyPlainObject;
var _isPlainObject = _interopRequireDefault(require("./isPlainObject"));
var _warning = _interopRequireDefault(require("./warning"));
function verifyPlainObject(value, displayName, methodName) {
if (!(0, _isPlainObject["default"])(value)) {
(0, _warning["default"])(methodName + "() in " + displayName + " must return a plain object. Instead received " + value + ".");
}
}
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"use strict";
exports.__esModule = true;
exports["default"] = warning;
/**
* Prints a warning in the console if it exists.
*
* @param {String} message The warning message.
* @returns {void}
*/
function warning(message) {
/* eslint-disable no-console */
if (typeof console !== 'undefined' && typeof console.error === 'function') {
console.error(message);
}
/* eslint-enable no-console */
try {
// This error was thrown as a convenience so that if you enable
// "break on all exceptions" in your console,
// it would pause the execution at this line.
throw new Error(message);
/* eslint-disable no-empty */
} catch (e) {}
/* eslint-enable no-empty */
}
+12
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"use strict";
exports.__esModule = true;
exports["default"] = wrapActionCreators;
var _redux = require("redux");
function wrapActionCreators(actionCreators) {
return function (dispatch) {
return (0, _redux.bindActionCreators)(actionCreators, dispatch);
};
}
+138
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{
"_from": "react-redux",
"_id": "react-redux@7.2.0",
"_inBundle": false,
"_integrity": "sha512-EvCAZYGfOLqwV7gh849xy9/pt55rJXPwmYvI4lilPM5rUT/1NxuuN59ipdBksRVSvz0KInbPnp4IfoXJXCqiDA==",
"_location": "/react-redux",
"_phantomChildren": {},
"_requested": {
"type": "tag",
"registry": true,
"raw": "react-redux",
"name": "react-redux",
"escapedName": "react-redux",
"rawSpec": "",
"saveSpec": null,
"fetchSpec": "latest"
},
"_requiredBy": [
"#USER",
"/"
],
"_resolved": "https://registry.npmjs.org/react-redux/-/react-redux-7.2.0.tgz",
"_shasum": "f970f62192b3981642fec46fd0db18a074fe879d",
"_spec": "react-redux",
"_where": "/Users/dhthomp/go/src/github.com/davidlick/bookish",
"author": {
"name": "Dan Abramov",
"email": "dan.abramov@me.com",
"url": "https://github.com/gaearon"
},
"browserify": {
"transform": [
"loose-envify"
]
},
"bugs": {
"url": "https://github.com/reduxjs/react-redux/issues"
},
"bundleDependencies": false,
"dependencies": {
"@babel/runtime": "^7.5.5",
"hoist-non-react-statics": "^3.3.0",
"loose-envify": "^1.4.0",
"prop-types": "^15.7.2",
"react-is": "^16.9.0"
},
"deprecated": false,
"description": "Official React bindings for Redux",
"devDependencies": {
"@babel/cli": "^7.5.5",
"@babel/core": "^7.5.5",
"@babel/plugin-proposal-decorators": "^7.4.4",
"@babel/plugin-proposal-object-rest-spread": "^7.5.5",
"@babel/plugin-transform-react-display-name": "^7.2.0",
"@babel/plugin-transform-react-jsx": "^7.3.0",
"@babel/plugin-transform-runtime": "^7.5.5",
"@babel/preset-env": "^7.5.5",
"@testing-library/jest-dom": "^4.1.0",
"@testing-library/jest-native": "^3.0.2",
"@testing-library/react": "^8.0.8",
"@testing-library/react-hooks": "^1.1.0",
"@testing-library/react-native": "^4.2.0",
"babel-eslint": "^10.0.3",
"babel-jest": "^24.9.0",
"codecov": "^3.5.0",
"create-react-class": "^15.6.3",
"cross-env": "^5.2.0",
"es3ify": "^0.2.0",
"eslint": "^6.2.2",
"eslint-config-prettier": "^6.1.0",
"eslint-plugin-import": "^2.18.2",
"eslint-plugin-prettier": "^3.1.0",
"eslint-plugin-react": "^7.14.3",
"glob": "^7.1.4",
"jest": "^24.9.0",
"prettier": "^1.18.2",
"react": "^16.8.6",
"react-dom": "^16.8.6",
"react-native": "^0.61.4",
"react-test-renderer": "^16.8.6",
"redux": "^4.0.4",
"rimraf": "^3.0.0",
"rollup": "^1.20.2",
"rollup-plugin-babel": "^4.3.3",
"rollup-plugin-commonjs": "^10.0.2",
"rollup-plugin-node-resolve": "^5.2.0",
"rollup-plugin-replace": "^2.2.0",
"rollup-plugin-terser": "^5.1.1"
},
"files": [
"dist",
"lib",
"src",
"es"
],
"homepage": "https://github.com/reduxjs/react-redux",
"keywords": [
"react",
"reactjs",
"redux"
],
"license": "MIT",
"main": "./lib/index.js",
"module": "es/index.js",
"name": "react-redux",
"peerDependencies": {
"react": "^16.8.3",
"redux": "^2.0.0 || ^3.0.0 || ^4.0.0-0"
},
"peerDependenciesMeta": {
"react-dom": {
"optional": true
},
"react-native": {
"optional": true
}
},
"repository": {
"type": "git",
"url": "git+https://github.com/reduxjs/react-redux.git"
},
"scripts": {
"build": "npm run build:commonjs && npm run build:es && npm run build:umd && npm run build:umd:min",
"build:commonjs": "cross-env BABEL_ENV=commonjs babel src --out-dir lib",
"build:es": "babel src --out-dir es",
"build:umd": "cross-env NODE_ENV=development rollup -c -o dist/react-redux.js",
"build:umd:min": "cross-env NODE_ENV=production rollup -c -o dist/react-redux.min.js",
"clean": "rimraf lib dist es coverage",
"coverage": "codecov",
"format": "prettier --write \"{src,test}/**/*.{js,ts}\" index.d.ts \"docs/**/*.md\"",
"lint": "eslint src test/utils test/components test/hooks",
"prepare": "npm run clean && npm run build",
"pretest": "npm run lint",
"test": "jest"
},
"unpkg": "dist/react-redux.js",
"version": "7.2.0"
}
+26
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import Provider from './components/Provider'
import connectAdvanced from './components/connectAdvanced'
import { ReactReduxContext } from './components/Context'
import connect from './connect/connect'
import { useDispatch } from './hooks/useDispatch'
import { useSelector } from './hooks/useSelector'
import { useStore } from './hooks/useStore'
import { getBatch } from './utils/batch'
import shallowEqual from './utils/shallowEqual'
// For other renderers besides ReactDOM and React Native, use the default noop batch function
const batch = getBatch()
export {
Provider,
connectAdvanced,
ReactReduxContext,
connect,
batch,
useDispatch,
useSelector,
useStore,
shallowEqual
}
+9
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import React from 'react'
export const ReactReduxContext = /*#__PURE__*/ React.createContext(null)
if (process.env.NODE_ENV !== 'production') {
ReactReduxContext.displayName = 'ReactRedux'
}
export default ReactReduxContext
+48
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import React, { useMemo, useEffect } from 'react'
import PropTypes from 'prop-types'
import { ReactReduxContext } from './Context'
import Subscription from '../utils/Subscription'
function Provider({ store, context, children }) {
const contextValue = useMemo(() => {
const subscription = new Subscription(store)
subscription.onStateChange = subscription.notifyNestedSubs
return {
store,
subscription
}
}, [store])
const previousState = useMemo(() => store.getState(), [store])
useEffect(() => {
const { subscription } = contextValue
subscription.trySubscribe()
if (previousState !== store.getState()) {
subscription.notifyNestedSubs()
}
return () => {
subscription.tryUnsubscribe()
subscription.onStateChange = null
}
}, [contextValue, previousState])
const Context = context || ReactReduxContext
return <Context.Provider value={contextValue}>{children}</Context.Provider>
}
if (process.env.NODE_ENV !== 'production') {
Provider.propTypes = {
store: PropTypes.shape({
subscribe: PropTypes.func.isRequired,
dispatch: PropTypes.func.isRequired,
getState: PropTypes.func.isRequired
}),
context: PropTypes.object,
children: PropTypes.any
}
}
export default Provider
+485
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import hoistStatics from 'hoist-non-react-statics'
import React, { useContext, useMemo, useRef, useReducer } from 'react'
import { isValidElementType, isContextConsumer } from 'react-is'
import Subscription from '../utils/Subscription'
import { useIsomorphicLayoutEffect } from '../utils/useIsomorphicLayoutEffect'
import { ReactReduxContext } from './Context'
// Define some constant arrays just to avoid re-creating these
const EMPTY_ARRAY = []
const NO_SUBSCRIPTION_ARRAY = [null, null]
const stringifyComponent = Comp => {
try {
return JSON.stringify(Comp)
} catch (err) {
return String(Comp)
}
}
function storeStateUpdatesReducer(state, action) {
const [, updateCount] = state
return [action.payload, updateCount + 1]
}
function useIsomorphicLayoutEffectWithArgs(
effectFunc,
effectArgs,
dependencies
) {
useIsomorphicLayoutEffect(() => effectFunc(...effectArgs), dependencies)
}
function captureWrapperProps(
lastWrapperProps,
lastChildProps,
renderIsScheduled,
wrapperProps,
actualChildProps,
childPropsFromStoreUpdate,
notifyNestedSubs
) {
// We want to capture the wrapper props and child props we used for later comparisons
lastWrapperProps.current = wrapperProps
lastChildProps.current = actualChildProps
renderIsScheduled.current = false
// If the render was from a store update, clear out that reference and cascade the subscriber update
if (childPropsFromStoreUpdate.current) {
childPropsFromStoreUpdate.current = null
notifyNestedSubs()
}
}
function subscribeUpdates(
shouldHandleStateChanges,
store,
subscription,
childPropsSelector,
lastWrapperProps,
lastChildProps,
renderIsScheduled,
childPropsFromStoreUpdate,
notifyNestedSubs,
forceComponentUpdateDispatch
) {
// If we're not subscribed to the store, nothing to do here
if (!shouldHandleStateChanges) return
// Capture values for checking if and when this component unmounts
let didUnsubscribe = false
let lastThrownError = null
// We'll run this callback every time a store subscription update propagates to this component
const checkForUpdates = () => {
if (didUnsubscribe) {
// Don't run stale listeners.
// Redux doesn't guarantee unsubscriptions happen until next dispatch.
return
}
const latestStoreState = store.getState()
let newChildProps, error
try {
// Actually run the selector with the most recent store state and wrapper props
// to determine what the child props should be
newChildProps = childPropsSelector(
latestStoreState,
lastWrapperProps.current
)
} catch (e) {
error = e
lastThrownError = e
}
if (!error) {
lastThrownError = null
}
// If the child props haven't changed, nothing to do here - cascade the subscription update
if (newChildProps === lastChildProps.current) {
if (!renderIsScheduled.current) {
notifyNestedSubs()
}
} else {
// Save references to the new child props. Note that we track the "child props from store update"
// as a ref instead of a useState/useReducer because we need a way to determine if that value has
// been processed. If this went into useState/useReducer, we couldn't clear out the value without
// forcing another re-render, which we don't want.
lastChildProps.current = newChildProps
childPropsFromStoreUpdate.current = newChildProps
renderIsScheduled.current = true
// If the child props _did_ change (or we caught an error), this wrapper component needs to re-render
forceComponentUpdateDispatch({
type: 'STORE_UPDATED',
payload: {
error
}
})
}
}
// Actually subscribe to the nearest connected ancestor (or store)
subscription.onStateChange = checkForUpdates
subscription.trySubscribe()
// Pull data from the store after first render in case the store has
// changed since we began.
checkForUpdates()
const unsubscribeWrapper = () => {
didUnsubscribe = true
subscription.tryUnsubscribe()
subscription.onStateChange = null
if (lastThrownError) {
// It's possible that we caught an error due to a bad mapState function, but the
// parent re-rendered without this component and we're about to unmount.
// This shouldn't happen as long as we do top-down subscriptions correctly, but
// if we ever do those wrong, this throw will surface the error in our tests.
// In that case, throw the error from here so it doesn't get lost.
throw lastThrownError
}
}
return unsubscribeWrapper
}
const initStateUpdates = () => [null, 0]
export default 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:
{
// the func used to compute this HOC's displayName from the wrapped component's displayName.
// probably overridden by wrapper functions such as connect()
getDisplayName = name => `ConnectAdvanced(${name})`,
// shown in error messages
// probably overridden by wrapper functions such as connect()
methodName = 'connectAdvanced',
// REMOVED: if defined, the name of the property passed to the wrapped element indicating the number of
// calls to render. useful for watching in react devtools for unnecessary re-renders.
renderCountProp = undefined,
// determines whether this HOC subscribes to store changes
shouldHandleStateChanges = true,
// REMOVED: the key of props/context to get the store
storeKey = 'store',
// REMOVED: expose the wrapped component via refs
withRef = false,
// use React's forwardRef to expose a ref of the wrapped component
forwardRef = false,
// the context consumer to use
context = ReactReduxContext,
// additional options are passed through to the selectorFactory
...connectOptions
} = {}
) {
if (process.env.NODE_ENV !== 'production') {
if (renderCountProp !== undefined) {
throw new Error(
`renderCountProp is removed. render counting is built into the latest React Dev Tools profiling extension`
)
}
if (withRef) {
throw new Error(
'withRef is removed. To access the wrapped instance, use a ref on the connected component'
)
}
const customStoreWarningMessage =
'To use a custom Redux store for specific components, create a custom React context with ' +
"React.createContext(), and pass the context object to React Redux's Provider and specific components" +
' like: <Provider context={MyContext}><ConnectedComponent context={MyContext} /></Provider>. ' +
'You may also pass a {context : MyContext} option to connect'
if (storeKey !== 'store') {
throw new Error(
'storeKey has been removed and does not do anything. ' +
customStoreWarningMessage
)
}
}
const Context = context
return function wrapWithConnect(WrappedComponent) {
if (
process.env.NODE_ENV !== 'production' &&
!isValidElementType(WrappedComponent)
) {
throw new Error(
`You must pass a component to the function returned by ` +
`${methodName}. Instead received ${stringifyComponent(
WrappedComponent
)}`
)
}
const wrappedComponentName =
WrappedComponent.displayName || WrappedComponent.name || 'Component'
const displayName = getDisplayName(wrappedComponentName)
const selectorFactoryOptions = {
...connectOptions,
getDisplayName,
methodName,
renderCountProp,
shouldHandleStateChanges,
storeKey,
displayName,
wrappedComponentName,
WrappedComponent
}
const { pure } = connectOptions
function createChildSelector(store) {
return selectorFactory(store.dispatch, selectorFactoryOptions)
}
// If we aren't running in "pure" mode, we don't want to memoize values.
// To avoid conditionally calling hooks, we fall back to a tiny wrapper
// that just executes the given callback immediately.
const usePureOnlyMemo = pure ? useMemo : callback => callback()
function ConnectFunction(props) {
const [propsContext, forwardedRef, wrapperProps] = useMemo(() => {
// Distinguish between actual "data" props that were passed to the wrapper component,
// and values needed to control behavior (forwarded refs, alternate context instances).
// To maintain the wrapperProps object reference, memoize this destructuring.
const { forwardedRef, ...wrapperProps } = props
return [props.context, forwardedRef, wrapperProps]
}, [props])
const ContextToUse = useMemo(() => {
// Users may optionally pass in a custom context instance to use instead of our ReactReduxContext.
// Memoize the check that determines which context instance we should use.
return propsContext &&
propsContext.Consumer &&
isContextConsumer(<propsContext.Consumer />)
? propsContext
: Context
}, [propsContext, Context])
// Retrieve the store and ancestor subscription via context, if available
const contextValue = useContext(ContextToUse)
// The store _must_ exist as either a prop or in context.
// We'll check to see if it _looks_ like a Redux store first.
// This allows us to pass through a `store` prop that is just a plain value.
const didStoreComeFromProps =
Boolean(props.store) &&
Boolean(props.store.getState) &&
Boolean(props.store.dispatch)
const didStoreComeFromContext =
Boolean(contextValue) && Boolean(contextValue.store)
if (
process.env.NODE_ENV !== 'production' &&
!didStoreComeFromProps &&
!didStoreComeFromContext
) {
throw new Error(
`Could not find "store" in the context of ` +
`"${displayName}". Either wrap the root component in a <Provider>, ` +
`or pass a custom React context provider to <Provider> and the corresponding ` +
`React context consumer to ${displayName} in connect options.`
)
}
// Based on the previous check, one of these must be true
const store = didStoreComeFromProps ? props.store : contextValue.store
const childPropsSelector = useMemo(() => {
// The child props selector needs the store reference as an input.
// Re-create this selector whenever the store changes.
return createChildSelector(store)
}, [store])
const [subscription, notifyNestedSubs] = useMemo(() => {
if (!shouldHandleStateChanges) return NO_SUBSCRIPTION_ARRAY
// This Subscription'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.
const subscription = new Subscription(
store,
didStoreComeFromProps ? null : contextValue.subscription
)
// `notifyNestedSubs` is duplicated to handle the case where the component is unmounted in
// the middle of the notification loop, where `subscription` will then be null. 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.
const notifyNestedSubs = subscription.notifyNestedSubs.bind(
subscription
)
return [subscription, notifyNestedSubs]
}, [store, didStoreComeFromProps, contextValue])
// Determine what {store, subscription} value should be put into nested context, if necessary,
// and memoize that value to avoid unnecessary context updates.
const overriddenContextValue = useMemo(() => {
if (didStoreComeFromProps) {
// This component is directly subscribed to a store from props.
// We don't want descendants reading from this store - pass down whatever
// the existing context value is from the nearest connected ancestor.
return contextValue
}
// Otherwise, put this component's subscription instance into context, so that
// connected descendants won't update until after this component is done
return {
...contextValue,
subscription
}
}, [didStoreComeFromProps, contextValue, subscription])
// We need to force this wrapper component to re-render whenever a Redux store update
// causes a change to the calculated child component props (or we caught an error in mapState)
const [
[previousStateUpdateResult],
forceComponentUpdateDispatch
] = useReducer(storeStateUpdatesReducer, EMPTY_ARRAY, initStateUpdates)
// Propagate any mapState/mapDispatch errors upwards
if (previousStateUpdateResult && previousStateUpdateResult.error) {
throw previousStateUpdateResult.error
}
// Set up refs to coordinate values between the subscription effect and the render logic
const lastChildProps = useRef()
const lastWrapperProps = useRef(wrapperProps)
const childPropsFromStoreUpdate = useRef()
const renderIsScheduled = useRef(false)
const actualChildProps = usePureOnlyMemo(() => {
// Tricky logic here:
// - This render may have been triggered by a Redux store update that produced new child props
// - However, we may have gotten new wrapper props after that
// If we have new child props, and the same wrapper props, we know we should use the new child props as-is.
// But, if we have new wrapper props, those might change the child props, so we have to recalculate things.
// So, we'll use the child props from store update only if the wrapper props are the same as last time.
if (
childPropsFromStoreUpdate.current &&
wrapperProps === lastWrapperProps.current
) {
return childPropsFromStoreUpdate.current
}
// TODO We're reading the store directly in render() here. Bad idea?
// This will likely cause Bad Things (TM) to happen in Concurrent Mode.
// Note that we do this because on renders _not_ caused by store updates, we need the latest store state
// to determine what the child props should be.
return childPropsSelector(store.getState(), wrapperProps)
}, [store, previousStateUpdateResult, wrapperProps])
// We need this to execute synchronously every time we re-render. However, React warns
// about useLayoutEffect in SSR, so we try to detect environment and fall back to
// just useEffect instead to avoid the warning, since neither will run anyway.
useIsomorphicLayoutEffectWithArgs(captureWrapperProps, [
lastWrapperProps,
lastChildProps,
renderIsScheduled,
wrapperProps,
actualChildProps,
childPropsFromStoreUpdate,
notifyNestedSubs
])
// Our re-subscribe logic only runs when the store/subscription setup changes
useIsomorphicLayoutEffectWithArgs(
subscribeUpdates,
[
shouldHandleStateChanges,
store,
subscription,
childPropsSelector,
lastWrapperProps,
lastChildProps,
renderIsScheduled,
childPropsFromStoreUpdate,
notifyNestedSubs,
forceComponentUpdateDispatch
],
[store, subscription, childPropsSelector]
)
// Now that all that's done, we can finally try to actually render the child component.
// We memoize the elements for the rendered child component as an optimization.
const renderedWrappedComponent = useMemo(
() => <WrappedComponent {...actualChildProps} ref={forwardedRef} />,
[forwardedRef, WrappedComponent, actualChildProps]
)
// If React sees the exact same element reference as last time, it bails out of re-rendering
// that child, same as if it was wrapped in React.memo() or returned false from shouldComponentUpdate.
const renderedChild = useMemo(() => {
if (shouldHandleStateChanges) {
// If this component is subscribed to store updates, we need to pass its own
// subscription instance down to our descendants. That means rendering the same
// Context instance, and putting a different value into the context.
return (
<ContextToUse.Provider value={overriddenContextValue}>
{renderedWrappedComponent}
</ContextToUse.Provider>
)
}
return renderedWrappedComponent
}, [ContextToUse, renderedWrappedComponent, overriddenContextValue])
return renderedChild
}
// If we're in "pure" mode, ensure our wrapper component only re-renders when incoming props have changed.
const Connect = pure ? React.memo(ConnectFunction) : ConnectFunction
Connect.WrappedComponent = WrappedComponent
Connect.displayName = displayName
if (forwardRef) {
const forwarded = React.forwardRef(function forwardConnectRef(
props,
ref
) {
return <Connect {...props} forwardedRef={ref} />
})
forwarded.displayName = displayName
forwarded.WrappedComponent = WrappedComponent
return hoistStatics(forwarded, WrappedComponent)
}
return hoistStatics(Connect, WrappedComponent)
}
}
+104
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import connectAdvanced from '../components/connectAdvanced'
import shallowEqual from '../utils/shallowEqual'
import defaultMapDispatchToPropsFactories from './mapDispatchToProps'
import defaultMapStateToPropsFactories from './mapStateToProps'
import defaultMergePropsFactories from './mergeProps'
import defaultSelectorFactory from './selectorFactory'
/*
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 (let i = factories.length - 1; i >= 0; i--) {
const result = factories[i](arg)
if (result) return result
}
return (dispatch, options) => {
throw new Error(
`Invalid value of type ${typeof arg} for ${name} argument when connecting component ${
options.wrappedComponentName
}.`
)
}
}
function strictEqual(a, b) {
return a === b
}
// createConnect with default args builds the 'official' connect behavior. Calling it with
// different options opens up some testing and extensibility scenarios
export function createConnect({
connectHOC = connectAdvanced,
mapStateToPropsFactories = defaultMapStateToPropsFactories,
mapDispatchToPropsFactories = defaultMapDispatchToPropsFactories,
mergePropsFactories = defaultMergePropsFactories,
selectorFactory = defaultSelectorFactory
} = {}) {
return function connect(
mapStateToProps,
mapDispatchToProps,
mergeProps,
{
pure = true,
areStatesEqual = strictEqual,
areOwnPropsEqual = shallowEqual,
areStatePropsEqual = shallowEqual,
areMergedPropsEqual = shallowEqual,
...extraOptions
} = {}
) {
const initMapStateToProps = match(
mapStateToProps,
mapStateToPropsFactories,
'mapStateToProps'
)
const initMapDispatchToProps = match(
mapDispatchToProps,
mapDispatchToPropsFactories,
'mapDispatchToProps'
)
const initMergeProps = match(mergeProps, mergePropsFactories, 'mergeProps')
return connectHOC(selectorFactory, {
// used in error messages
methodName: 'connect',
// used to compute Connect's displayName from the wrapped component's displayName.
getDisplayName: name => `Connect(${name})`,
// if mapStateToProps is falsy, the Connect component doesn't subscribe to store state changes
shouldHandleStateChanges: Boolean(mapStateToProps),
// passed through to selectorFactory
initMapStateToProps,
initMapDispatchToProps,
initMergeProps,
pure,
areStatesEqual,
areOwnPropsEqual,
areStatePropsEqual,
areMergedPropsEqual,
// any extra options args can override defaults of connect or connectAdvanced
...extraOptions
})
}
}
export default /*#__PURE__*/ createConnect()
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import { bindActionCreators } from 'redux'
import { wrapMapToPropsConstant, wrapMapToPropsFunc } from './wrapMapToProps'
export function whenMapDispatchToPropsIsFunction(mapDispatchToProps) {
return typeof mapDispatchToProps === 'function'
? wrapMapToPropsFunc(mapDispatchToProps, 'mapDispatchToProps')
: undefined
}
export function whenMapDispatchToPropsIsMissing(mapDispatchToProps) {
return !mapDispatchToProps
? wrapMapToPropsConstant(dispatch => ({ dispatch }))
: undefined
}
export function whenMapDispatchToPropsIsObject(mapDispatchToProps) {
return mapDispatchToProps && typeof mapDispatchToProps === 'object'
? wrapMapToPropsConstant(dispatch =>
bindActionCreators(mapDispatchToProps, dispatch)
)
: undefined
}
export default [
whenMapDispatchToPropsIsFunction,
whenMapDispatchToPropsIsMissing,
whenMapDispatchToPropsIsObject
]
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import { wrapMapToPropsConstant, wrapMapToPropsFunc } from './wrapMapToProps'
export function whenMapStateToPropsIsFunction(mapStateToProps) {
return typeof mapStateToProps === 'function'
? wrapMapToPropsFunc(mapStateToProps, 'mapStateToProps')
: undefined
}
export function whenMapStateToPropsIsMissing(mapStateToProps) {
return !mapStateToProps ? wrapMapToPropsConstant(() => ({})) : undefined
}
export default [whenMapStateToPropsIsFunction, whenMapStateToPropsIsMissing]
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import verifyPlainObject from '../utils/verifyPlainObject'
export function defaultMergeProps(stateProps, dispatchProps, ownProps) {
return { ...ownProps, ...stateProps, ...dispatchProps }
}
export function wrapMergePropsFunc(mergeProps) {
return function initMergePropsProxy(
dispatch,
{ displayName, pure, areMergedPropsEqual }
) {
let hasRunOnce = false
let mergedProps
return function mergePropsProxy(stateProps, dispatchProps, ownProps) {
const nextMergedProps = mergeProps(stateProps, dispatchProps, ownProps)
if (hasRunOnce) {
if (!pure || !areMergedPropsEqual(nextMergedProps, mergedProps))
mergedProps = nextMergedProps
} else {
hasRunOnce = true
mergedProps = nextMergedProps
if (process.env.NODE_ENV !== 'production')
verifyPlainObject(mergedProps, displayName, 'mergeProps')
}
return mergedProps
}
}
}
export function whenMergePropsIsFunction(mergeProps) {
return typeof mergeProps === 'function'
? wrapMergePropsFunc(mergeProps)
: undefined
}
export function whenMergePropsIsOmitted(mergeProps) {
return !mergeProps ? () => defaultMergeProps : undefined
}
export default [whenMergePropsIsFunction, whenMergePropsIsOmitted]
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import verifySubselectors from './verifySubselectors'
export function impureFinalPropsSelectorFactory(
mapStateToProps,
mapDispatchToProps,
mergeProps,
dispatch
) {
return function impureFinalPropsSelector(state, ownProps) {
return mergeProps(
mapStateToProps(state, ownProps),
mapDispatchToProps(dispatch, ownProps),
ownProps
)
}
}
export function pureFinalPropsSelectorFactory(
mapStateToProps,
mapDispatchToProps,
mergeProps,
dispatch,
{ areStatesEqual, areOwnPropsEqual, areStatePropsEqual }
) {
let hasRunAtLeastOnce = false
let state
let ownProps
let stateProps
let dispatchProps
let 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() {
const nextStateProps = mapStateToProps(state, ownProps)
const statePropsChanged = !areStatePropsEqual(nextStateProps, stateProps)
stateProps = nextStateProps
if (statePropsChanged)
mergedProps = mergeProps(stateProps, dispatchProps, ownProps)
return mergedProps
}
function handleSubsequentCalls(nextState, nextOwnProps) {
const propsChanged = !areOwnPropsEqual(nextOwnProps, ownProps)
const 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.
export default function finalPropsSelectorFactory(
dispatch,
{ initMapStateToProps, initMapDispatchToProps, initMergeProps, ...options }
) {
const mapStateToProps = initMapStateToProps(dispatch, options)
const mapDispatchToProps = initMapDispatchToProps(dispatch, options)
const mergeProps = initMergeProps(dispatch, options)
if (process.env.NODE_ENV !== 'production') {
verifySubselectors(
mapStateToProps,
mapDispatchToProps,
mergeProps,
options.displayName
)
}
const selectorFactory = options.pure
? pureFinalPropsSelectorFactory
: impureFinalPropsSelectorFactory
return selectorFactory(
mapStateToProps,
mapDispatchToProps,
mergeProps,
dispatch,
options
)
}
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import warning from '../utils/warning'
function verify(selector, methodName, displayName) {
if (!selector) {
throw new Error(`Unexpected value for ${methodName} in ${displayName}.`)
} else if (
methodName === 'mapStateToProps' ||
methodName === 'mapDispatchToProps'
) {
if (!Object.prototype.hasOwnProperty.call(selector, 'dependsOnOwnProps')) {
warning(
`The selector for ${methodName} of ${displayName} did not specify a value for dependsOnOwnProps.`
)
}
}
}
export default function verifySubselectors(
mapStateToProps,
mapDispatchToProps,
mergeProps,
displayName
) {
verify(mapStateToProps, 'mapStateToProps', displayName)
verify(mapDispatchToProps, 'mapDispatchToProps', displayName)
verify(mergeProps, 'mergeProps', displayName)
}
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import verifyPlainObject from '../utils/verifyPlainObject'
export function wrapMapToPropsConstant(getConstant) {
return function initConstantSelector(dispatch, options) {
const 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..
export 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.
//
export function wrapMapToPropsFunc(mapToProps, methodName) {
return function initProxySelector(dispatch, { displayName }) {
const 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)
let props = proxy(stateOrDispatch, ownProps)
if (typeof props === 'function') {
proxy.mapToProps = props
proxy.dependsOnOwnProps = getDependsOnOwnProps(props)
props = proxy(stateOrDispatch, ownProps)
}
if (process.env.NODE_ENV !== 'production')
verifyPlainObject(props, displayName, methodName)
return props
}
return proxy
}
}
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import { ReactReduxContext } from '../components/Context'
import { useStore as useDefaultStore, createStoreHook } from './useStore'
/**
* Hook factory, which creates a `useDispatch` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useDispatch` hook bound to the specified context.
*/
export function createDispatchHook(context = ReactReduxContext) {
const useStore =
context === ReactReduxContext ? useDefaultStore : createStoreHook(context)
return function useDispatch() {
const store = useStore()
return store.dispatch
}
}
/**
* A hook to access the redux `dispatch` function.
*
* @returns {any|function} redux store's `dispatch` function
*
* @example
*
* import React, { useCallback } from 'react'
* import { useDispatch } from 'react-redux'
*
* export const CounterComponent = ({ value }) => {
* const dispatch = useDispatch()
* const increaseCounter = useCallback(() => dispatch({ type: 'increase-counter' }), [])
* return (
* <div>
* <span>{value}</span>
* <button onClick={increaseCounter}>Increase counter</button>
* </div>
* )
* }
*/
export const useDispatch = /*#__PURE__*/ createDispatchHook()
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import { useContext } from 'react'
import { ReactReduxContext } from '../components/Context'
/**
* A hook to access the value of the `ReactReduxContext`. This is a low-level
* hook that you should usually not need to call directly.
*
* @returns {any} the value of the `ReactReduxContext`
*
* @example
*
* import React from 'react'
* import { useReduxContext } from 'react-redux'
*
* export const CounterComponent = ({ value }) => {
* const { store } = useReduxContext()
* return <div>{store.getState()}</div>
* }
*/
export function useReduxContext() {
const contextValue = useContext(ReactReduxContext)
if (process.env.NODE_ENV !== 'production' && !contextValue) {
throw new Error(
'could not find react-redux context value; please ensure the component is wrapped in a <Provider>'
)
}
return contextValue
}
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import { useReducer, useRef, useMemo, useContext } from 'react'
import { useReduxContext as useDefaultReduxContext } from './useReduxContext'
import Subscription from '../utils/Subscription'
import { useIsomorphicLayoutEffect } from '../utils/useIsomorphicLayoutEffect'
import { ReactReduxContext } from '../components/Context'
const refEquality = (a, b) => a === b
function useSelectorWithStoreAndSubscription(
selector,
equalityFn,
store,
contextSub
) {
const [, forceRender] = useReducer(s => s + 1, 0)
const subscription = useMemo(() => new Subscription(store, contextSub), [
store,
contextSub
])
const latestSubscriptionCallbackError = useRef()
const latestSelector = useRef()
const latestSelectedState = useRef()
let selectedState
try {
if (
selector !== latestSelector.current ||
latestSubscriptionCallbackError.current
) {
selectedState = selector(store.getState())
} else {
selectedState = latestSelectedState.current
}
} catch (err) {
if (latestSubscriptionCallbackError.current) {
err.message += `\nThe error may be correlated with this previous error:\n${latestSubscriptionCallbackError.current.stack}\n\n`
}
throw err
}
useIsomorphicLayoutEffect(() => {
latestSelector.current = selector
latestSelectedState.current = selectedState
latestSubscriptionCallbackError.current = undefined
})
useIsomorphicLayoutEffect(() => {
function checkForUpdates() {
try {
const newSelectedState = latestSelector.current(store.getState())
if (equalityFn(newSelectedState, latestSelectedState.current)) {
return
}
latestSelectedState.current = newSelectedState
} catch (err) {
// we ignore all errors here, since when the component
// is re-rendered, the selectors are called again, and
// will throw again, if neither props nor store state
// changed
latestSubscriptionCallbackError.current = err
}
forceRender({})
}
subscription.onStateChange = checkForUpdates
subscription.trySubscribe()
checkForUpdates()
return () => subscription.tryUnsubscribe()
}, [store, subscription])
return selectedState
}
/**
* Hook factory, which creates a `useSelector` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useSelector` hook bound to the specified context.
*/
export function createSelectorHook(context = ReactReduxContext) {
const useReduxContext =
context === ReactReduxContext
? useDefaultReduxContext
: () => useContext(context)
return function useSelector(selector, equalityFn = refEquality) {
if (process.env.NODE_ENV !== 'production' && !selector) {
throw new Error(`You must pass a selector to useSelectors`)
}
const { store, subscription: contextSub } = useReduxContext()
return useSelectorWithStoreAndSubscription(
selector,
equalityFn,
store,
contextSub
)
}
}
/**
* A hook to access the redux store's state. This hook takes a selector function
* as an argument. The selector is called with the store state.
*
* This hook takes an optional equality comparison function as the second parameter
* that allows you to customize the way the selected state is compared to determine
* whether the component needs to be re-rendered.
*
* @param {Function} selector the selector function
* @param {Function=} equalityFn the function that will be used to determine equality
*
* @returns {any} the selected state
*
* @example
*
* import React from 'react'
* import { useSelector } from 'react-redux'
*
* export const CounterComponent = () => {
* const counter = useSelector(state => state.counter)
* return <div>{counter}</div>
* }
*/
export const useSelector = /*#__PURE__*/ createSelectorHook()
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import { useContext } from 'react'
import { ReactReduxContext } from '../components/Context'
import { useReduxContext as useDefaultReduxContext } from './useReduxContext'
/**
* Hook factory, which creates a `useStore` hook bound to a given context.
*
* @param {React.Context} [context=ReactReduxContext] Context passed to your `<Provider>`.
* @returns {Function} A `useStore` hook bound to the specified context.
*/
export function createStoreHook(context = ReactReduxContext) {
const useReduxContext =
context === ReactReduxContext
? useDefaultReduxContext
: () => useContext(context)
return function useStore() {
const { store } = useReduxContext()
return store
}
}
/**
* A hook to access the redux store.
*
* @returns {any} the redux store
*
* @example
*
* import React from 'react'
* import { useStore } from 'react-redux'
*
* export const ExampleComponent = () => {
* const store = useStore()
* return <div>{store.getState()}</div>
* }
*/
export const useStore = /*#__PURE__*/ createStoreHook()
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import Provider from './components/Provider'
import connectAdvanced from './components/connectAdvanced'
import { ReactReduxContext } from './components/Context'
import connect from './connect/connect'
import { useDispatch, createDispatchHook } from './hooks/useDispatch'
import { useSelector, createSelectorHook } from './hooks/useSelector'
import { useStore, createStoreHook } from './hooks/useStore'
import { setBatch } from './utils/batch'
import { unstable_batchedUpdates as batch } from './utils/reactBatchedUpdates'
import shallowEqual from './utils/shallowEqual'
setBatch(batch)
export {
Provider,
connectAdvanced,
ReactReduxContext,
connect,
batch,
useDispatch,
createDispatchHook,
useSelector,
createSelectorHook,
useStore,
createStoreHook,
shallowEqual
}
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import { getBatch } from './batch'
// 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
const nullListeners = { notify() {} }
function createListenerCollection() {
const batch = getBatch()
let first = null
let last = null
return {
clear() {
first = null
last = null
},
notify() {
batch(() => {
let listener = first
while (listener) {
listener.callback()
listener = listener.next
}
})
},
get() {
let listeners = []
let listener = first
while (listener) {
listeners.push(listener)
listener = listener.next
}
return listeners
},
subscribe(callback) {
let isSubscribed = true
let listener = (last = {
callback,
next: null,
prev: last
})
if (listener.prev) {
listener.prev.next = listener
} else {
first = listener
}
return function unsubscribe() {
if (!isSubscribed || first === null) return
isSubscribed = false
if (listener.next) {
listener.next.prev = listener.prev
} else {
last = listener.prev
}
if (listener.prev) {
listener.prev.next = listener.next
} else {
first = listener.next
}
}
}
}
}
export default class Subscription {
constructor(store, parentSub) {
this.store = store
this.parentSub = parentSub
this.unsubscribe = null
this.listeners = nullListeners
this.handleChangeWrapper = this.handleChangeWrapper.bind(this)
}
addNestedSub(listener) {
this.trySubscribe()
return this.listeners.subscribe(listener)
}
notifyNestedSubs() {
this.listeners.notify()
}
handleChangeWrapper() {
if (this.onStateChange) {
this.onStateChange()
}
}
isSubscribed() {
return Boolean(this.unsubscribe)
}
trySubscribe() {
if (!this.unsubscribe) {
this.unsubscribe = this.parentSub
? this.parentSub.addNestedSub(this.handleChangeWrapper)
: this.store.subscribe(this.handleChangeWrapper)
this.listeners = createListenerCollection()
}
}
tryUnsubscribe() {
if (this.unsubscribe) {
this.unsubscribe()
this.unsubscribe = null
this.listeners.clear()
this.listeners = nullListeners
}
}
}
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// Default to a dummy "batch" implementation that just runs the callback
function defaultNoopBatch(callback) {
callback()
}
let batch = defaultNoopBatch
// Allow injecting another batching function later
export const setBatch = newBatch => (batch = newBatch)
// Supply a getter just to skip dealing with ESM bindings
export const getBatch = () => batch
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/**
* @param {any} obj The object to inspect.
* @returns {boolean} True if the argument appears to be a plain object.
*/
export default function isPlainObject(obj) {
if (typeof obj !== 'object' || obj === null) return false
let proto = Object.getPrototypeOf(obj)
if (proto === null) return true
let baseProto = proto
while (Object.getPrototypeOf(baseProto) !== null) {
baseProto = Object.getPrototypeOf(baseProto)
}
return proto === baseProto
}
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/* eslint-disable import/no-unresolved */
export { unstable_batchedUpdates } from 'react-dom'
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/* eslint-disable import/no-unresolved */
import { unstable_batchedUpdates } from 'react-native'
export { unstable_batchedUpdates }
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function is(x, y) {
if (x === y) {
return x !== 0 || y !== 0 || 1 / x === 1 / y
} else {
return x !== x && y !== y
}
}
export default function shallowEqual(objA, objB) {
if (is(objA, objB)) return true
if (
typeof objA !== 'object' ||
objA === null ||
typeof objB !== 'object' ||
objB === null
) {
return false
}
const keysA = Object.keys(objA)
const keysB = Object.keys(objB)
if (keysA.length !== keysB.length) return false
for (let i = 0; i < keysA.length; i++) {
if (
!Object.prototype.hasOwnProperty.call(objB, keysA[i]) ||
!is(objA[keysA[i]], objB[keysA[i]])
) {
return false
}
}
return true
}
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import { useEffect, useLayoutEffect } from 'react'
// React currently throws a warning when using useLayoutEffect on the server.
// To get around it, we can conditionally useEffect on the server (no-op) and
// useLayoutEffect in the browser. We need useLayoutEffect to ensure the store
// subscription callback always has the selector from the latest render commit
// available, otherwise a store update may happen between render and the effect,
// which may cause missed updates; we also must ensure the store subscription
// is created synchronously, otherwise a store update may occur before the
// subscription is created and an inconsistent state may be observed
export const useIsomorphicLayoutEffect =
typeof window !== 'undefined' &&
typeof window.document !== 'undefined' &&
typeof window.document.createElement !== 'undefined'
? useLayoutEffect
: useEffect
@@ -0,0 +1,5 @@
import { useLayoutEffect } from 'react'
// Under React Native, we know that we always want to use useLayoutEffect
export const useIsomorphicLayoutEffect = useLayoutEffect
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import isPlainObject from './isPlainObject'
import warning from './warning'
export default function verifyPlainObject(value, displayName, methodName) {
if (!isPlainObject(value)) {
warning(
`${methodName}() in ${displayName} must return a plain object. Instead received ${value}.`
)
}
}
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/**
* Prints a warning in the console if it exists.
*
* @param {String} message The warning message.
* @returns {void}
*/
export default function warning(message) {
/* eslint-disable no-console */
if (typeof console !== 'undefined' && typeof console.error === 'function') {
console.error(message)
}
/* eslint-enable no-console */
try {
// This error was thrown as a convenience so that if you enable
// "break on all exceptions" in your console,
// it would pause the execution at this line.
throw new Error(message)
/* eslint-disable no-empty */
} catch (e) {}
/* eslint-enable no-empty */
}
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import { bindActionCreators } from 'redux'
export default function wrapActionCreators(actionCreators) {
return dispatch => bindActionCreators(actionCreators, dispatch)
}