From 0483e670263c8100b40557dcc3e90d44988a3c97 Mon Sep 17 00:00:00 2001 From: Akinwale Ariwodola Date: Fri, 18 May 2018 08:07:18 +0100 Subject: [PATCH] Remove postinstall step which is no longer needed in RN 0.55.3. Update react-navigation version. --- app/package-lock.json | 2 +- app/package.json | 5 +- app/patch/ReactNativeRenderer-dev.js.patch | 13009 ------------------- 3 files changed, 3 insertions(+), 13013 deletions(-) delete mode 100644 app/patch/ReactNativeRenderer-dev.js.patch diff --git a/app/package-lock.json b/app/package-lock.json index 7b0cdeb..26573f8 100644 --- a/app/package-lock.json +++ b/app/package-lock.json @@ -3953,7 +3953,7 @@ } }, "lbry-redux": { - "version": "github:lbryio/lbry-redux#4b53175ecd689aaa10f221bcee0897313d27901e", + "version": "github:lbryio/lbry-redux#30c18725d8c6c141c30c57f0a324d0abb8963b99", "requires": { "proxy-polyfill": "0.1.6", "reselect": "3.0.1" diff --git a/app/package.json b/app/package.json index 92cadee..b5e54e1 100644 --- a/app/package.json +++ b/app/package.json @@ -3,8 +3,7 @@ "version": "0.0.1", "private": "true", "scripts": { - "start": "node node_modules/react-native/local-cli/cli.js start", - "postinstall": "cp ./patch/ReactNativeRenderer-dev.js.patch ./node_modules/react-native/Libraries/Renderer/ReactNativeRenderer-dev.js" + "start": "node node_modules/react-native/local-cli/cli.js start" }, "dependencies": { "lbry-redux": "lbryio/lbry-redux", @@ -13,7 +12,7 @@ "react-native": "0.55.3", "react-native-vector-icons": "^4.5.0", "react-native-video": "2.0.0", - "react-navigation": "^1.0.3", + "react-navigation": "^1.5.12", "react-navigation-redux-helpers": "^1.0.1", "react-redux": "^5.0.3", "redux": "^3.6.0", diff --git a/app/patch/ReactNativeRenderer-dev.js.patch b/app/patch/ReactNativeRenderer-dev.js.patch deleted file mode 100644 index a9c9a93..0000000 --- a/app/patch/ReactNativeRenderer-dev.js.patch +++ /dev/null @@ -1,13009 +0,0 @@ -/** - * Copyright (c) 2013-present, Facebook, Inc. - * - * This source code is licensed under the MIT license found in the - * LICENSE file in the root directory of this source tree. - * - * @noflow - * @providesModule ReactNativeRenderer-dev - * @preventMunge - */ - -'use strict'; - -if (__DEV__) { - (function() { -"use strict"; - -require("InitializeCore"); -var invariant = require("fbjs/lib/invariant"); -var warning = require("fbjs/lib/warning"); -var emptyFunction = require("fbjs/lib/emptyFunction"); -var RCTEventEmitter = require("RCTEventEmitter"); -var UIManager = require("UIManager"); -var React = require("react"); -var ExceptionsManager = require("ExceptionsManager"); -var TextInputState = require("TextInputState"); -var deepDiffer = require("deepDiffer"); -var flattenStyle = require("flattenStyle"); -var emptyObject = require("fbjs/lib/emptyObject"); -var checkPropTypes = require("prop-types/checkPropTypes"); -var shallowEqual = require("fbjs/lib/shallowEqual"); -var deepFreezeAndThrowOnMutationInDev = require("deepFreezeAndThrowOnMutationInDev"); - -var ReactErrorUtils = { - // Used by Fiber to simulate a try-catch. - _caughtError: null, - _hasCaughtError: false, - - // Used by event system to capture/rethrow the first error. - _rethrowError: null, - _hasRethrowError: false, - - injection: { - injectErrorUtils: function(injectedErrorUtils) { - invariant( - typeof injectedErrorUtils.invokeGuardedCallback === "function", - "Injected invokeGuardedCallback() must be a function." - ); - invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback; - } - }, - - /** - * Call a function while guarding against errors that happens within it. - * Returns an error if it throws, otherwise null. - * - * In production, this is implemented using a try-catch. The reason we don't - * use a try-catch directly is so that we can swap out a different - * implementation in DEV mode. - * - * @param {String} name of the guard to use for logging or debugging - * @param {Function} func The function to invoke - * @param {*} context The context to use when calling the function - * @param {...*} args Arguments for function - */ - invokeGuardedCallback: function(name, func, context, a, b, c, d, e, f) { - invokeGuardedCallback.apply(ReactErrorUtils, arguments); - }, - - /** - * Same as invokeGuardedCallback, but instead of returning an error, it stores - * it in a global so it can be rethrown by `rethrowCaughtError` later. - * TODO: See if _caughtError and _rethrowError can be unified. - * - * @param {String} name of the guard to use for logging or debugging - * @param {Function} func The function to invoke - * @param {*} context The context to use when calling the function - * @param {...*} args Arguments for function - */ - invokeGuardedCallbackAndCatchFirstError: function( - name, - func, - context, - a, - b, - c, - d, - e, - f - ) { - ReactErrorUtils.invokeGuardedCallback.apply(this, arguments); - if (ReactErrorUtils.hasCaughtError()) { - var error = ReactErrorUtils.clearCaughtError(); - if (!ReactErrorUtils._hasRethrowError) { - ReactErrorUtils._hasRethrowError = true; - ReactErrorUtils._rethrowError = error; - } - } - }, - - /** - * During execution of guarded functions we will capture the first error which - * we will rethrow to be handled by the top level error handler. - */ - rethrowCaughtError: function() { - return rethrowCaughtError.apply(ReactErrorUtils, arguments); - }, - - hasCaughtError: function() { - return ReactErrorUtils._hasCaughtError; - }, - - clearCaughtError: function() { - if (ReactErrorUtils._hasCaughtError) { - var error = ReactErrorUtils._caughtError; - ReactErrorUtils._caughtError = null; - ReactErrorUtils._hasCaughtError = false; - return error; - } else { - invariant( - false, - "clearCaughtError was called but no error was captured. This error " + - "is likely caused by a bug in React. Please file an issue." - ); - } - } -}; - -var invokeGuardedCallback = function(name, func, context, a, b, c, d, e, f) { - ReactErrorUtils._hasCaughtError = false; - ReactErrorUtils._caughtError = null; - var funcArgs = Array.prototype.slice.call(arguments, 3); - try { - func.apply(context, funcArgs); - } catch (error) { - ReactErrorUtils._caughtError = error; - ReactErrorUtils._hasCaughtError = true; - } -}; - -{ - // In DEV mode, we swap out invokeGuardedCallback for a special version - // that plays more nicely with the browser's DevTools. The idea is to preserve - // "Pause on exceptions" behavior. Because React wraps all user-provided - // functions in invokeGuardedCallback, and the production version of - // invokeGuardedCallback uses a try-catch, all user exceptions are treated - // like caught exceptions, and the DevTools won't pause unless the developer - // takes the extra step of enabling pause on caught exceptions. This is - // untintuitive, though, because even though React has caught the error, from - // the developer's perspective, the error is uncaught. - // - // To preserve the expected "Pause on exceptions" behavior, we don't use a - // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake - // DOM node, and call the user-provided callback from inside an event handler - // for that fake event. If the callback throws, the error is "captured" using - // a global event handler. But because the error happens in a different - // event loop context, it does not interrupt the normal program flow. - // Effectively, this gives us try-catch behavior without actually using - // try-catch. Neat! - - // Check that the browser supports the APIs we need to implement our special - // DEV version of invokeGuardedCallback - if ( - typeof window !== "undefined" && - typeof window.dispatchEvent === "function" && - typeof document !== "undefined" && - typeof document.createEvent === "function" - ) { - var fakeNode = document.createElement("react"); - - var invokeGuardedCallbackDev = function( - name, - func, - context, - a, - b, - c, - d, - e, - f - ) { - // If document doesn't exist we know for sure we will crash in this method - // when we call document.createEvent(). However this can cause confusing - // errors: https://github.com/facebookincubator/create-react-app/issues/3482 - // So we preemptively throw with a better message instead. - invariant( - typeof document !== "undefined", - "The `document` global was defined when React was initialized, but is not " + - "defined anymore. This can happen in a test environment if a component " + - "schedules an update from an asynchronous callback, but the test has already " + - "finished running. To solve this, you can either unmount the component at " + - "the end of your test (and ensure that any asynchronous operations get " + - "canceled in `componentWillUnmount`), or you can change the test itself " + - "to be asynchronous." - ); - var evt = document.createEvent("Event"); - - // Keeps track of whether the user-provided callback threw an error. We - // set this to true at the beginning, then set it to false right after - // calling the function. If the function errors, `didError` will never be - // set to false. This strategy works even if the browser is flaky and - // fails to call our global error handler, because it doesn't rely on - // the error event at all. - var didError = true; - - // Create an event handler for our fake event. We will synchronously - // dispatch our fake event using `dispatchEvent`. Inside the handler, we - // call the user-provided callback. - var funcArgs = Array.prototype.slice.call(arguments, 3); - function callCallback() { - // We immediately remove the callback from event listeners so that - // nested `invokeGuardedCallback` calls do not clash. Otherwise, a - // nested call would trigger the fake event handlers of any call higher - // in the stack. - fakeNode.removeEventListener(evtType, callCallback, false); - func.apply(context, funcArgs); - didError = false; - } - - // Create a global error event handler. We use this to capture the value - // that was thrown. It's possible that this error handler will fire more - // than once; for example, if non-React code also calls `dispatchEvent` - // and a handler for that event throws. We should be resilient to most of - // those cases. Even if our error event handler fires more than once, the - // last error event is always used. If the callback actually does error, - // we know that the last error event is the correct one, because it's not - // possible for anything else to have happened in between our callback - // erroring and the code that follows the `dispatchEvent` call below. If - // the callback doesn't error, but the error event was fired, we know to - // ignore it because `didError` will be false, as described above. - var error = void 0; - // Use this to track whether the error event is ever called. - var didSetError = false; - var isCrossOriginError = false; - - function onError(event) { - error = event.error; - didSetError = true; - if (error === null && event.colno === 0 && event.lineno === 0) { - isCrossOriginError = true; - } - } - - // Create a fake event type. - var evtType = "react-" + (name ? name : "invokeguardedcallback"); - - // Attach our event handlers - window.addEventListener("error", onError); - fakeNode.addEventListener(evtType, callCallback, false); - - // Synchronously dispatch our fake event. If the user-provided function - // errors, it will trigger our global error handler. - evt.initEvent(evtType, false, false); - fakeNode.dispatchEvent(evt); - - if (didError) { - if (!didSetError) { - // The callback errored, but the error event never fired. - error = new Error( - "An error was thrown inside one of your components, but React " + - "doesn't know what it was. This is likely due to browser " + - 'flakiness. React does its best to preserve the "Pause on ' + - 'exceptions" behavior of the DevTools, which requires some ' + - "DEV-mode only tricks. It's possible that these don't work in " + - "your browser. Try triggering the error in production mode, " + - "or switching to a modern browser. If you suspect that this is " + - "actually an issue with React, please file an issue." - ); - } else if (isCrossOriginError) { - error = new Error( - "A cross-origin error was thrown. React doesn't have access to " + - "the actual error object in development. " + - "See https://fb.me/react-crossorigin-error for more information." - ); - } - ReactErrorUtils._hasCaughtError = true; - ReactErrorUtils._caughtError = error; - } else { - ReactErrorUtils._hasCaughtError = false; - ReactErrorUtils._caughtError = null; - } - - // Remove our event listeners - window.removeEventListener("error", onError); - }; - - invokeGuardedCallback = invokeGuardedCallbackDev; - } -} - -var rethrowCaughtError = function() { - if (ReactErrorUtils._hasRethrowError) { - var error = ReactErrorUtils._rethrowError; - ReactErrorUtils._rethrowError = null; - ReactErrorUtils._hasRethrowError = false; - throw error; - } -}; - -/** - * Injectable ordering of event plugins. - */ -var eventPluginOrder = null; - -/** - * Injectable mapping from names to event plugin modules. - */ -var namesToPlugins = {}; - -/** - * Recomputes the plugin list using the injected plugins and plugin ordering. - * - * @private - */ -function recomputePluginOrdering() { - if (!eventPluginOrder) { - // Wait until an `eventPluginOrder` is injected. - return; - } - for (var pluginName in namesToPlugins) { - var pluginModule = namesToPlugins[pluginName]; - var pluginIndex = eventPluginOrder.indexOf(pluginName); - invariant( - pluginIndex > -1, - "EventPluginRegistry: Cannot inject event plugins that do not exist in " + - "the plugin ordering, `%s`.", - pluginName - ); - if (plugins[pluginIndex]) { - continue; - } - invariant( - pluginModule.extractEvents, - "EventPluginRegistry: Event plugins must implement an `extractEvents` " + - "method, but `%s` does not.", - pluginName - ); - plugins[pluginIndex] = pluginModule; - var publishedEvents = pluginModule.eventTypes; - for (var eventName in publishedEvents) { - invariant( - publishEventForPlugin( - publishedEvents[eventName], - pluginModule, - eventName - ), - "EventPluginRegistry: Failed to publish event `%s` for plugin `%s`.", - eventName, - pluginName - ); - } - } -} - -/** - * Publishes an event so that it can be dispatched by the supplied plugin. - * - * @param {object} dispatchConfig Dispatch configuration for the event. - * @param {object} PluginModule Plugin publishing the event. - * @return {boolean} True if the event was successfully published. - * @private - */ -function publishEventForPlugin(dispatchConfig, pluginModule, eventName) { - invariant( - !eventNameDispatchConfigs.hasOwnProperty(eventName), - "EventPluginHub: More than one plugin attempted to publish the same " + - "event name, `%s`.", - eventName - ); - eventNameDispatchConfigs[eventName] = dispatchConfig; - - var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames; - if (phasedRegistrationNames) { - for (var phaseName in phasedRegistrationNames) { - if (phasedRegistrationNames.hasOwnProperty(phaseName)) { - var phasedRegistrationName = phasedRegistrationNames[phaseName]; - publishRegistrationName( - phasedRegistrationName, - pluginModule, - eventName - ); - } - } - return true; - } else if (dispatchConfig.registrationName) { - publishRegistrationName( - dispatchConfig.registrationName, - pluginModule, - eventName - ); - return true; - } - return false; -} - -/** - * Publishes a registration name that is used to identify dispatched events. - * - * @param {string} registrationName Registration name to add. - * @param {object} PluginModule Plugin publishing the event. - * @private - */ -function publishRegistrationName(registrationName, pluginModule, eventName) { - invariant( - !registrationNameModules[registrationName], - "EventPluginHub: More than one plugin attempted to publish the same " + - "registration name, `%s`.", - registrationName - ); - registrationNameModules[registrationName] = pluginModule; - registrationNameDependencies[registrationName] = - pluginModule.eventTypes[eventName].dependencies; - - { - var lowerCasedName = registrationName.toLowerCase(); - } -} - -/** - * Registers plugins so that they can extract and dispatch events. - * - * @see {EventPluginHub} - */ - -/** - * Ordered list of injected plugins. - */ -var plugins = []; - -/** - * Mapping from event name to dispatch config - */ -var eventNameDispatchConfigs = {}; - -/** - * Mapping from registration name to plugin module - */ -var registrationNameModules = {}; - -/** - * Mapping from registration name to event name - */ -var registrationNameDependencies = {}; - -/** - * Mapping from lowercase registration names to the properly cased version, - * used to warn in the case of missing event handlers. Available - * only in true. - * @type {Object} - */ - -// Trust the developer to only use possibleRegistrationNames in true - -/** - * Injects an ordering of plugins (by plugin name). This allows the ordering - * to be decoupled from injection of the actual plugins so that ordering is - * always deterministic regardless of packaging, on-the-fly injection, etc. - * - * @param {array} InjectedEventPluginOrder - * @internal - * @see {EventPluginHub.injection.injectEventPluginOrder} - */ -function injectEventPluginOrder(injectedEventPluginOrder) { - invariant( - !eventPluginOrder, - "EventPluginRegistry: Cannot inject event plugin ordering more than " + - "once. You are likely trying to load more than one copy of React." - ); - // Clone the ordering so it cannot be dynamically mutated. - eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder); - recomputePluginOrdering(); -} - -/** - * Injects plugins to be used by `EventPluginHub`. The plugin names must be - * in the ordering injected by `injectEventPluginOrder`. - * - * Plugins can be injected as part of page initialization or on-the-fly. - * - * @param {object} injectedNamesToPlugins Map from names to plugin modules. - * @internal - * @see {EventPluginHub.injection.injectEventPluginsByName} - */ -function injectEventPluginsByName(injectedNamesToPlugins) { - var isOrderingDirty = false; - for (var pluginName in injectedNamesToPlugins) { - if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) { - continue; - } - var pluginModule = injectedNamesToPlugins[pluginName]; - if ( - !namesToPlugins.hasOwnProperty(pluginName) || - namesToPlugins[pluginName] !== pluginModule - ) { - invariant( - !namesToPlugins[pluginName], - "EventPluginRegistry: Cannot inject two different event plugins " + - "using the same name, `%s`.", - pluginName - ); - namesToPlugins[pluginName] = pluginModule; - isOrderingDirty = true; - } - } - if (isOrderingDirty) { - recomputePluginOrdering(); - } -} - -var getFiberCurrentPropsFromNode = null; -var getInstanceFromNode = null; -var getNodeFromInstance = null; - -var injection$1 = { - injectComponentTree: function(Injected) { - getFiberCurrentPropsFromNode = Injected.getFiberCurrentPropsFromNode; - getInstanceFromNode = Injected.getInstanceFromNode; - getNodeFromInstance = Injected.getNodeFromInstance; - - { - warning( - getNodeFromInstance && getInstanceFromNode, - "EventPluginUtils.injection.injectComponentTree(...): Injected " + - "module is missing getNodeFromInstance or getInstanceFromNode." - ); - } - } -}; - -function isEndish(topLevelType) { - return ( - topLevelType === "topMouseUp" || - topLevelType === "topTouchEnd" || - topLevelType === "topTouchCancel" - ); -} - -function isMoveish(topLevelType) { - return topLevelType === "topMouseMove" || topLevelType === "topTouchMove"; -} -function isStartish(topLevelType) { - return topLevelType === "topMouseDown" || topLevelType === "topTouchStart"; -} - -var validateEventDispatches; -{ - validateEventDispatches = function(event) { - var dispatchListeners = event._dispatchListeners; - var dispatchInstances = event._dispatchInstances; - - var listenersIsArr = Array.isArray(dispatchListeners); - var listenersLen = listenersIsArr - ? dispatchListeners.length - : dispatchListeners ? 1 : 0; - - var instancesIsArr = Array.isArray(dispatchInstances); - var instancesLen = instancesIsArr - ? dispatchInstances.length - : dispatchInstances ? 1 : 0; - - warning( - instancesIsArr === listenersIsArr && instancesLen === listenersLen, - "EventPluginUtils: Invalid `event`." - ); - }; -} - -/** - * Dispatch the event to the listener. - * @param {SyntheticEvent} event SyntheticEvent to handle - * @param {boolean} simulated If the event is simulated (changes exn behavior) - * @param {function} listener Application-level callback - * @param {*} inst Internal component instance - */ -function executeDispatch(event, simulated, listener, inst) { - var type = event.type || "unknown-event"; - event.currentTarget = getNodeFromInstance(inst); - ReactErrorUtils.invokeGuardedCallbackAndCatchFirstError( - type, - listener, - undefined, - event - ); - event.currentTarget = null; -} - -/** - * Standard/simple iteration through an event's collected dispatches. - */ -function executeDispatchesInOrder(event, simulated) { - var dispatchListeners = event._dispatchListeners; - var dispatchInstances = event._dispatchInstances; - { - validateEventDispatches(event); - } - if (Array.isArray(dispatchListeners)) { - for (var i = 0; i < dispatchListeners.length; i++) { - if (event.isPropagationStopped()) { - break; - } - // Listeners and Instances are two parallel arrays that are always in sync. - executeDispatch( - event, - simulated, - dispatchListeners[i], - dispatchInstances[i] - ); - } - } else if (dispatchListeners) { - executeDispatch(event, simulated, dispatchListeners, dispatchInstances); - } - event._dispatchListeners = null; - event._dispatchInstances = null; -} - -/** - * Standard/simple iteration through an event's collected dispatches, but stops - * at the first dispatch execution returning true, and returns that id. - * - * @return {?string} id of the first dispatch execution who's listener returns - * true, or null if no listener returned true. - */ -function executeDispatchesInOrderStopAtTrueImpl(event) { - var dispatchListeners = event._dispatchListeners; - var dispatchInstances = event._dispatchInstances; - { - validateEventDispatches(event); - } - if (Array.isArray(dispatchListeners)) { - for (var i = 0; i < dispatchListeners.length; i++) { - if (event.isPropagationStopped()) { - break; - } - // Listeners and Instances are two parallel arrays that are always in sync. - if (dispatchListeners[i](event, dispatchInstances[i])) { - return dispatchInstances[i]; - } - } - } else if (dispatchListeners) { - if (dispatchListeners(event, dispatchInstances)) { - return dispatchInstances; - } - } - return null; -} - -/** - * @see executeDispatchesInOrderStopAtTrueImpl - */ -function executeDispatchesInOrderStopAtTrue(event) { - var ret = executeDispatchesInOrderStopAtTrueImpl(event); - event._dispatchInstances = null; - event._dispatchListeners = null; - return ret; -} - -/** - * Execution of a "direct" dispatch - there must be at most one dispatch - * accumulated on the event or it is considered an error. It doesn't really make - * sense for an event with multiple dispatches (bubbled) to keep track of the - * return values at each dispatch execution, but it does tend to make sense when - * dealing with "direct" dispatches. - * - * @return {*} The return value of executing the single dispatch. - */ -function executeDirectDispatch(event) { - { - validateEventDispatches(event); - } - var dispatchListener = event._dispatchListeners; - var dispatchInstance = event._dispatchInstances; - invariant( - !Array.isArray(dispatchListener), - "executeDirectDispatch(...): Invalid `event`." - ); - event.currentTarget = dispatchListener - ? getNodeFromInstance(dispatchInstance) - : null; - var res = dispatchListener ? dispatchListener(event) : null; - event.currentTarget = null; - event._dispatchListeners = null; - event._dispatchInstances = null; - return res; -} - -/** - * @param {SyntheticEvent} event - * @return {boolean} True iff number of dispatches accumulated is greater than 0. - */ -function hasDispatches(event) { - return !!event._dispatchListeners; -} - -/** - * Accumulates items that must not be null or undefined into the first one. This - * is used to conserve memory by avoiding array allocations, and thus sacrifices - * API cleanness. Since `current` can be null before being passed in and not - * null after this function, make sure to assign it back to `current`: - * - * `a = accumulateInto(a, b);` - * - * This API should be sparingly used. Try `accumulate` for something cleaner. - * - * @return {*|array<*>} An accumulation of items. - */ - -function accumulateInto(current, next) { - invariant( - next != null, - "accumulateInto(...): Accumulated items must not be null or undefined." - ); - - if (current == null) { - return next; - } - - // Both are not empty. Warning: Never call x.concat(y) when you are not - // certain that x is an Array (x could be a string with concat method). - if (Array.isArray(current)) { - if (Array.isArray(next)) { - current.push.apply(current, next); - return current; - } - current.push(next); - return current; - } - - if (Array.isArray(next)) { - // A bit too dangerous to mutate `next`. - return [current].concat(next); - } - - return [current, next]; -} - -/** - * @param {array} arr an "accumulation" of items which is either an Array or - * a single item. Useful when paired with the `accumulate` module. This is a - * simple utility that allows us to reason about a collection of items, but - * handling the case when there is exactly one item (and we do not need to - * allocate an array). - * @param {function} cb Callback invoked with each element or a collection. - * @param {?} [scope] Scope used as `this` in a callback. - */ -function forEachAccumulated(arr, cb, scope) { - if (Array.isArray(arr)) { - arr.forEach(cb, scope); - } else if (arr) { - cb.call(scope, arr); - } -} - -/** - * Internal queue of events that have accumulated their dispatches and are - * waiting to have their dispatches executed. - */ -var eventQueue = null; - -/** - * Dispatches an event and releases it back into the pool, unless persistent. - * - * @param {?object} event Synthetic event to be dispatched. - * @param {boolean} simulated If the event is simulated (changes exn behavior) - * @private - */ -var executeDispatchesAndRelease = function(event, simulated) { - if (event) { - executeDispatchesInOrder(event, simulated); - - if (!event.isPersistent()) { - event.constructor.release(event); - } - } -}; -var executeDispatchesAndReleaseSimulated = function(e) { - return executeDispatchesAndRelease(e, true); -}; -var executeDispatchesAndReleaseTopLevel = function(e) { - return executeDispatchesAndRelease(e, false); -}; - -function isInteractive(tag) { - return ( - tag === "button" || - tag === "input" || - tag === "select" || - tag === "textarea" - ); -} - -function shouldPreventMouseEvent(name, type, props) { - switch (name) { - case "onClick": - case "onClickCapture": - case "onDoubleClick": - case "onDoubleClickCapture": - case "onMouseDown": - case "onMouseDownCapture": - case "onMouseMove": - case "onMouseMoveCapture": - case "onMouseUp": - case "onMouseUpCapture": - return !!(props.disabled && isInteractive(type)); - default: - return false; - } -} - -/** - * This is a unified interface for event plugins to be installed and configured. - * - * Event plugins can implement the following properties: - * - * `extractEvents` {function(string, DOMEventTarget, string, object): *} - * Required. When a top-level event is fired, this method is expected to - * extract synthetic events that will in turn be queued and dispatched. - * - * `eventTypes` {object} - * Optional, plugins that fire events must publish a mapping of registration - * names that are used to register listeners. Values of this mapping must - * be objects that contain `registrationName` or `phasedRegistrationNames`. - * - * `executeDispatch` {function(object, function, string)} - * Optional, allows plugins to override how an event gets dispatched. By - * default, the listener is simply invoked. - * - * Each plugin that is injected into `EventsPluginHub` is immediately operable. - * - * @public - */ - -/** - * Methods for injecting dependencies. - */ -var injection = { - /** - * @param {array} InjectedEventPluginOrder - * @public - */ - injectEventPluginOrder: injectEventPluginOrder, - - /** - * @param {object} injectedNamesToPlugins Map from names to plugin modules. - */ - injectEventPluginsByName: injectEventPluginsByName -}; - -/** - * @param {object} inst The instance, which is the source of events. - * @param {string} registrationName Name of listener (e.g. `onClick`). - * @return {?function} The stored callback. - */ -function getListener(inst, registrationName) { - var listener; - - // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not - // live here; needs to be moved to a better place soon - var stateNode = inst.stateNode; - if (!stateNode) { - // Work in progress (ex: onload events in incremental mode). - return null; - } - var props = getFiberCurrentPropsFromNode(stateNode); - if (!props) { - // Work in progress. - return null; - } - listener = props[registrationName]; - if (shouldPreventMouseEvent(registrationName, inst.type, props)) { - return null; - } - invariant( - !listener || typeof listener === "function", - "Expected `%s` listener to be a function, instead got a value of `%s` type.", - registrationName, - typeof listener - ); - return listener; -} - -/** - * Allows registered plugins an opportunity to extract events from top-level - * native browser events. - * - * @return {*} An accumulation of synthetic events. - * @internal - */ -function extractEvents( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget -) { - var events; - for (var i = 0; i < plugins.length; i++) { - // Not every plugin in the ordering may be loaded at runtime. - var possiblePlugin = plugins[i]; - if (possiblePlugin) { - var extractedEvents = possiblePlugin.extractEvents( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget - ); - if (extractedEvents) { - events = accumulateInto(events, extractedEvents); - } - } - } - return events; -} - -/** - * Enqueues a synthetic event that should be dispatched when - * `processEventQueue` is invoked. - * - * @param {*} events An accumulation of synthetic events. - * @internal - */ -function enqueueEvents(events) { - if (events) { - eventQueue = accumulateInto(eventQueue, events); - } -} - -/** - * Dispatches all synthetic events on the event queue. - * - * @internal - */ -function processEventQueue(simulated) { - // Set `eventQueue` to null before processing it so that we can tell if more - // events get enqueued while processing. - var processingEventQueue = eventQueue; - eventQueue = null; - - if (!processingEventQueue) { - return; - } - - if (simulated) { - forEachAccumulated( - processingEventQueue, - executeDispatchesAndReleaseSimulated - ); - } else { - forEachAccumulated( - processingEventQueue, - executeDispatchesAndReleaseTopLevel - ); - } - invariant( - !eventQueue, - "processEventQueue(): Additional events were enqueued while processing " + - "an event queue. Support for this has not yet been implemented." - ); - // This would be a good time to rethrow if any of the event handlers threw. - ReactErrorUtils.rethrowCaughtError(); -} - -var IndeterminateComponent = 0; // Before we know whether it is functional or class -var FunctionalComponent = 1; -var ClassComponent = 2; -var HostRoot = 3; // Root of a host tree. Could be nested inside another node. -var HostPortal = 4; // A subtree. Could be an entry point to a different renderer. -var HostComponent = 5; -var HostText = 6; -var CallComponent = 7; -var CallHandlerPhase = 8; -var ReturnComponent = 9; -var Fragment = 10; - -function getParent(inst) { - do { - inst = inst["return"]; - // TODO: If this is a HostRoot we might want to bail out. - // That is depending on if we want nested subtrees (layers) to bubble - // events to their parent. We could also go through parentNode on the - // host node but that wouldn't work for React Native and doesn't let us - // do the portal feature. - } while (inst && inst.tag !== HostComponent); - if (inst) { - return inst; - } - return null; -} - -/** - * Return the lowest common ancestor of A and B, or null if they are in - * different trees. - */ -function getLowestCommonAncestor(instA, instB) { - var depthA = 0; - for (var tempA = instA; tempA; tempA = getParent(tempA)) { - depthA++; - } - var depthB = 0; - for (var tempB = instB; tempB; tempB = getParent(tempB)) { - depthB++; - } - - // If A is deeper, crawl up. - while (depthA - depthB > 0) { - instA = getParent(instA); - depthA--; - } - - // If B is deeper, crawl up. - while (depthB - depthA > 0) { - instB = getParent(instB); - depthB--; - } - - // Walk in lockstep until we find a match. - var depth = depthA; - while (depth--) { - if (instA === instB || instA === instB.alternate) { - return instA; - } - instA = getParent(instA); - instB = getParent(instB); - } - return null; -} - -/** - * Return if A is an ancestor of B. - */ -function isAncestor(instA, instB) { - while (instB) { - if (instA === instB || instA === instB.alternate) { - return true; - } - instB = getParent(instB); - } - return false; -} - -/** - * Return the parent instance of the passed-in instance. - */ -function getParentInstance(inst) { - return getParent(inst); -} - -/** - * Simulates the traversal of a two-phase, capture/bubble event dispatch. - */ -function traverseTwoPhase(inst, fn, arg) { - var path = []; - while (inst) { - path.push(inst); - inst = getParent(inst); - } - var i; - for (i = path.length; i-- > 0; ) { - fn(path[i], "captured", arg); - } - for (i = 0; i < path.length; i++) { - fn(path[i], "bubbled", arg); - } -} - -/** - * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that - * should would receive a `mouseEnter` or `mouseLeave` event. - * - * Does not invoke the callback on the nearest common ancestor because nothing - * "entered" or "left" that element. - */ - -/** - * Some event types have a notion of different registration names for different - * "phases" of propagation. This finds listeners by a given phase. - */ -function listenerAtPhase(inst, event, propagationPhase) { - var registrationName = - event.dispatchConfig.phasedRegistrationNames[propagationPhase]; - return getListener(inst, registrationName); -} - -/** - * A small set of propagation patterns, each of which will accept a small amount - * of information, and generate a set of "dispatch ready event objects" - which - * are sets of events that have already been annotated with a set of dispatched - * listener functions/ids. The API is designed this way to discourage these - * propagation strategies from actually executing the dispatches, since we - * always want to collect the entire set of dispatches before executing even a - * single one. - */ - -/** - * Tags a `SyntheticEvent` with dispatched listeners. Creating this function - * here, allows us to not have to bind or create functions for each event. - * Mutating the event's members allows us to not have to create a wrapping - * "dispatch" object that pairs the event with the listener. - */ -function accumulateDirectionalDispatches(inst, phase, event) { - { - warning(inst, "Dispatching inst must not be null"); - } - var listener = listenerAtPhase(inst, event, phase); - if (listener) { - event._dispatchListeners = accumulateInto( - event._dispatchListeners, - listener - ); - event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); - } -} - -/** - * Collect dispatches (must be entirely collected before dispatching - see unit - * tests). Lazily allocate the array to conserve memory. We must loop through - * each event and perform the traversal for each one. We cannot perform a - * single traversal for the entire collection of events because each event may - * have a different target. - */ -function accumulateTwoPhaseDispatchesSingle(event) { - if (event && event.dispatchConfig.phasedRegistrationNames) { - traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event); - } -} - -/** - * Same as `accumulateTwoPhaseDispatchesSingle`, but skips over the targetID. - */ -function accumulateTwoPhaseDispatchesSingleSkipTarget(event) { - if (event && event.dispatchConfig.phasedRegistrationNames) { - var targetInst = event._targetInst; - var parentInst = targetInst ? getParentInstance(targetInst) : null; - traverseTwoPhase(parentInst, accumulateDirectionalDispatches, event); - } -} - -/** - * Accumulates without regard to direction, does not look for phased - * registration names. Same as `accumulateDirectDispatchesSingle` but without - * requiring that the `dispatchMarker` be the same as the dispatched ID. - */ -function accumulateDispatches(inst, ignoredDirection, event) { - if (inst && event && event.dispatchConfig.registrationName) { - var registrationName = event.dispatchConfig.registrationName; - var listener = getListener(inst, registrationName); - if (listener) { - event._dispatchListeners = accumulateInto( - event._dispatchListeners, - listener - ); - event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); - } - } -} - -/** - * Accumulates dispatches on an `SyntheticEvent`, but only for the - * `dispatchMarker`. - * @param {SyntheticEvent} event - */ -function accumulateDirectDispatchesSingle(event) { - if (event && event.dispatchConfig.registrationName) { - accumulateDispatches(event._targetInst, null, event); - } -} - -function accumulateTwoPhaseDispatches(events) { - forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle); -} - -function accumulateTwoPhaseDispatchesSkipTarget(events) { - forEachAccumulated(events, accumulateTwoPhaseDispatchesSingleSkipTarget); -} - -function accumulateDirectDispatches(events) { - forEachAccumulated(events, accumulateDirectDispatchesSingle); -} - -/* eslint valid-typeof: 0 */ - -var didWarnForAddedNewProperty = false; -var isProxySupported = typeof Proxy === 'function' && !Object.isSealed(new Proxy({}, {})); -var EVENT_POOL_SIZE = 10; - -var shouldBeReleasedProperties = [ - "dispatchConfig", - "_targetInst", - "nativeEvent", - "isDefaultPrevented", - "isPropagationStopped", - "_dispatchListeners", - "_dispatchInstances" -]; - -/** - * @interface Event - * @see http://www.w3.org/TR/DOM-Level-3-Events/ - */ -var EventInterface = { - type: null, - target: null, - // currentTarget is set when dispatching; no use in copying it here - currentTarget: emptyFunction.thatReturnsNull, - eventPhase: null, - bubbles: null, - cancelable: null, - timeStamp: function(event) { - return event.timeStamp || Date.now(); - }, - defaultPrevented: null, - isTrusted: null -}; - -/** - * Synthetic events are dispatched by event plugins, typically in response to a - * top-level event delegation handler. - * - * These systems should generally use pooling to reduce the frequency of garbage - * collection. The system should check `isPersistent` to determine whether the - * event should be released into the pool after being dispatched. Users that - * need a persisted event should invoke `persist`. - * - * Synthetic events (and subclasses) implement the DOM Level 3 Events API by - * normalizing browser quirks. Subclasses do not necessarily have to implement a - * DOM interface; custom application-specific events can also subclass this. - * - * @param {object} dispatchConfig Configuration used to dispatch this event. - * @param {*} targetInst Marker identifying the event target. - * @param {object} nativeEvent Native browser event. - * @param {DOMEventTarget} nativeEventTarget Target node. - */ -function SyntheticEvent( - dispatchConfig, - targetInst, - nativeEvent, - nativeEventTarget -) { - { - // these have a getter/setter for warnings - delete this.nativeEvent; - delete this.preventDefault; - delete this.stopPropagation; - } - - this.dispatchConfig = dispatchConfig; - this._targetInst = targetInst; - this.nativeEvent = nativeEvent; - - var Interface = this.constructor.Interface; - for (var propName in Interface) { - if (!Interface.hasOwnProperty(propName)) { - continue; - } - { - delete this[propName]; // this has a getter/setter for warnings - } - var normalize = Interface[propName]; - if (normalize) { - this[propName] = normalize(nativeEvent); - } else { - if (propName === "target") { - this.target = nativeEventTarget; - } else { - this[propName] = nativeEvent[propName]; - } - } - } - - var defaultPrevented = - nativeEvent.defaultPrevented != null - ? nativeEvent.defaultPrevented - : nativeEvent.returnValue === false; - if (defaultPrevented) { - this.isDefaultPrevented = emptyFunction.thatReturnsTrue; - } else { - this.isDefaultPrevented = emptyFunction.thatReturnsFalse; - } - this.isPropagationStopped = emptyFunction.thatReturnsFalse; - return this; -} - -Object.assign(SyntheticEvent.prototype, { - preventDefault: function() { - this.defaultPrevented = true; - var event = this.nativeEvent; - if (!event) { - return; - } - - if (event.preventDefault) { - event.preventDefault(); - } else if (typeof event.returnValue !== "unknown") { - event.returnValue = false; - } - this.isDefaultPrevented = emptyFunction.thatReturnsTrue; - }, - - stopPropagation: function() { - var event = this.nativeEvent; - if (!event) { - return; - } - - if (event.stopPropagation) { - event.stopPropagation(); - } else if (typeof event.cancelBubble !== "unknown") { - // The ChangeEventPlugin registers a "propertychange" event for - // IE. This event does not support bubbling or cancelling, and - // any references to cancelBubble throw "Member not found". A - // typeof check of "unknown" circumvents this issue (and is also - // IE specific). - event.cancelBubble = true; - } - - this.isPropagationStopped = emptyFunction.thatReturnsTrue; - }, - - /** - * We release all dispatched `SyntheticEvent`s after each event loop, adding - * them back into the pool. This allows a way to hold onto a reference that - * won't be added back into the pool. - */ - persist: function() { - this.isPersistent = emptyFunction.thatReturnsTrue; - }, - - /** - * Checks if this event should be released back into the pool. - * - * @return {boolean} True if this should not be released, false otherwise. - */ - isPersistent: emptyFunction.thatReturnsFalse, - - /** - * `PooledClass` looks for `destructor` on each instance it releases. - */ - destructor: function() { - var Interface = this.constructor.Interface; - for (var propName in Interface) { - { - Object.defineProperty( - this, - propName, - getPooledWarningPropertyDefinition(propName, Interface[propName]) - ); - } - } - for (var i = 0; i < shouldBeReleasedProperties.length; i++) { - this[shouldBeReleasedProperties[i]] = null; - } - { - Object.defineProperty( - this, - "nativeEvent", - getPooledWarningPropertyDefinition("nativeEvent", null) - ); - Object.defineProperty( - this, - "preventDefault", - getPooledWarningPropertyDefinition("preventDefault", emptyFunction) - ); - Object.defineProperty( - this, - "stopPropagation", - getPooledWarningPropertyDefinition("stopPropagation", emptyFunction) - ); - } - } -}); - -SyntheticEvent.Interface = EventInterface; - -/** - * Helper to reduce boilerplate when creating subclasses. - * - * @param {function} Class - * @param {?object} Interface - */ -SyntheticEvent.augmentClass = function(Class, Interface) { - var Super = this; - - var E = function() {}; - E.prototype = Super.prototype; - var prototype = new E(); - - Object.assign(prototype, Class.prototype); - Class.prototype = prototype; - Class.prototype.constructor = Class; - - Class.Interface = Object.assign({}, Super.Interface, Interface); - Class.augmentClass = Super.augmentClass; - addEventPoolingTo(Class); -}; - -/** Proxying after everything set on SyntheticEvent - * to resolve Proxy issue on some WebKit browsers - * in which some Event properties are set to undefined (GH#10010) - */ -{ - if (isProxySupported) { - /*eslint-disable no-func-assign */ - SyntheticEvent = new Proxy(SyntheticEvent, { - construct: function(target, args) { - return this.apply(target, Object.create(target.prototype), args); - }, - apply: function(constructor, that, args) { - return new Proxy(constructor.apply(that, args), { - set: function(target, prop, value) { - if ( - prop !== "isPersistent" && - !target.constructor.Interface.hasOwnProperty(prop) && - shouldBeReleasedProperties.indexOf(prop) === -1 - ) { - warning( - didWarnForAddedNewProperty || target.isPersistent(), - "This synthetic event is reused for performance reasons. If you're " + - "seeing this, you're adding a new property in the synthetic event object. " + - "The property is never released. See " + - "https://fb.me/react-event-pooling for more information." - ); - didWarnForAddedNewProperty = true; - } - target[prop] = value; - return true; - } - }); - } - }); - /*eslint-enable no-func-assign */ - } -} - -addEventPoolingTo(SyntheticEvent); - -/** - * Helper to nullify syntheticEvent instance properties when destructing - * - * @param {String} propName - * @param {?object} getVal - * @return {object} defineProperty object - */ -function getPooledWarningPropertyDefinition(propName, getVal) { - var isFunction = typeof getVal === "function"; - return { - configurable: true, - set: set, - get: get - }; - - function set(val) { - var action = isFunction ? "setting the method" : "setting the property"; - warn(action, "This is effectively a no-op"); - return val; - } - - function get() { - var action = isFunction ? "accessing the method" : "accessing the property"; - var result = isFunction - ? "This is a no-op function" - : "This is set to null"; - warn(action, result); - return getVal; - } - - function warn(action, result) { - var warningCondition = false; - warning( - warningCondition, - "This synthetic event is reused for performance reasons. If you're seeing this, " + - "you're %s `%s` on a released/nullified synthetic event. %s. " + - "If you must keep the original synthetic event around, use event.persist(). " + - "See https://fb.me/react-event-pooling for more information.", - action, - propName, - result - ); - } -} - -function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) { - var EventConstructor = this; - if (EventConstructor.eventPool.length) { - var instance = EventConstructor.eventPool.pop(); - EventConstructor.call( - instance, - dispatchConfig, - targetInst, - nativeEvent, - nativeInst - ); - return instance; - } - return new EventConstructor( - dispatchConfig, - targetInst, - nativeEvent, - nativeInst - ); -} - -function releasePooledEvent(event) { - var EventConstructor = this; - invariant( - event instanceof EventConstructor, - "Trying to release an event instance into a pool of a different type." - ); - event.destructor(); - if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) { - EventConstructor.eventPool.push(event); - } -} - -function addEventPoolingTo(EventConstructor) { - EventConstructor.eventPool = []; - EventConstructor.getPooled = getPooledEvent; - EventConstructor.release = releasePooledEvent; -} - -var SyntheticEvent$1 = SyntheticEvent; - -/** - * `touchHistory` isn't actually on the native event, but putting it in the - * interface will ensure that it is cleaned up when pooled/destroyed. The - * `ResponderEventPlugin` will populate it appropriately. - */ -var ResponderEventInterface = { - touchHistory: function(nativeEvent) { - return null; // Actually doesn't even look at the native event. - } -}; - -/** - * @param {object} dispatchConfig Configuration used to dispatch this event. - * @param {string} dispatchMarker Marker identifying the event target. - * @param {object} nativeEvent Native event. - * @extends {SyntheticEvent} - */ -function ResponderSyntheticEvent( - dispatchConfig, - dispatchMarker, - nativeEvent, - nativeEventTarget -) { - return SyntheticEvent$1.call( - this, - dispatchConfig, - dispatchMarker, - nativeEvent, - nativeEventTarget - ); -} - -SyntheticEvent$1.augmentClass(ResponderSyntheticEvent, ResponderEventInterface); - -/** - * Tracks the position and time of each active touch by `touch.identifier`. We - * should typically only see IDs in the range of 1-20 because IDs get recycled - * when touches end and start again. - */ - -var MAX_TOUCH_BANK = 20; -var touchBank = []; -var touchHistory = { - touchBank: touchBank, - numberActiveTouches: 0, - // If there is only one active touch, we remember its location. This prevents - // us having to loop through all of the touches all the time in the most - // common case. - indexOfSingleActiveTouch: -1, - mostRecentTimeStamp: 0 -}; - -function timestampForTouch(touch) { - // The legacy internal implementation provides "timeStamp", which has been - // renamed to "timestamp". Let both work for now while we iron it out - // TODO (evv): rename timeStamp to timestamp in internal code - return touch.timeStamp || touch.timestamp; -} - -/** - * TODO: Instead of making gestures recompute filtered velocity, we could - * include a built in velocity computation that can be reused globally. - */ -function createTouchRecord(touch) { - return { - touchActive: true, - startPageX: touch.pageX, - startPageY: touch.pageY, - startTimeStamp: timestampForTouch(touch), - currentPageX: touch.pageX, - currentPageY: touch.pageY, - currentTimeStamp: timestampForTouch(touch), - previousPageX: touch.pageX, - previousPageY: touch.pageY, - previousTimeStamp: timestampForTouch(touch) - }; -} - -function resetTouchRecord(touchRecord, touch) { - touchRecord.touchActive = true; - touchRecord.startPageX = touch.pageX; - touchRecord.startPageY = touch.pageY; - touchRecord.startTimeStamp = timestampForTouch(touch); - touchRecord.currentPageX = touch.pageX; - touchRecord.currentPageY = touch.pageY; - touchRecord.currentTimeStamp = timestampForTouch(touch); - touchRecord.previousPageX = touch.pageX; - touchRecord.previousPageY = touch.pageY; - touchRecord.previousTimeStamp = timestampForTouch(touch); -} - -function getTouchIdentifier(_ref) { - var identifier = _ref.identifier; - - invariant(identifier != null, "Touch object is missing identifier."); - { - warning( - identifier <= MAX_TOUCH_BANK, - "Touch identifier %s is greater than maximum supported %s which causes " + - "performance issues backfilling array locations for all of the indices.", - identifier, - MAX_TOUCH_BANK - ); - } - return identifier; -} - -function recordTouchStart(touch) { - var identifier = getTouchIdentifier(touch); - var touchRecord = touchBank[identifier]; - if (touchRecord) { - resetTouchRecord(touchRecord, touch); - } else { - touchBank[identifier] = createTouchRecord(touch); - } - touchHistory.mostRecentTimeStamp = timestampForTouch(touch); -} - -function recordTouchMove(touch) { - var touchRecord = touchBank[getTouchIdentifier(touch)]; - if (touchRecord) { - touchRecord.touchActive = true; - touchRecord.previousPageX = touchRecord.currentPageX; - touchRecord.previousPageY = touchRecord.currentPageY; - touchRecord.previousTimeStamp = touchRecord.currentTimeStamp; - touchRecord.currentPageX = touch.pageX; - touchRecord.currentPageY = touch.pageY; - touchRecord.currentTimeStamp = timestampForTouch(touch); - touchHistory.mostRecentTimeStamp = timestampForTouch(touch); - } else { - console.error( - "Cannot record touch move without a touch start.\n" + "Touch Move: %s\n", - "Touch Bank: %s", - printTouch(touch), - printTouchBank() - ); - } -} - -function recordTouchEnd(touch) { - var touchRecord = touchBank[getTouchIdentifier(touch)]; - if (touchRecord) { - touchRecord.touchActive = false; - touchRecord.previousPageX = touchRecord.currentPageX; - touchRecord.previousPageY = touchRecord.currentPageY; - touchRecord.previousTimeStamp = touchRecord.currentTimeStamp; - touchRecord.currentPageX = touch.pageX; - touchRecord.currentPageY = touch.pageY; - touchRecord.currentTimeStamp = timestampForTouch(touch); - touchHistory.mostRecentTimeStamp = timestampForTouch(touch); - } else { - console.error( - "Cannot record touch end without a touch start.\n" + "Touch End: %s\n", - "Touch Bank: %s", - printTouch(touch), - printTouchBank() - ); - } -} - -function printTouch(touch) { - return JSON.stringify({ - identifier: touch.identifier, - pageX: touch.pageX, - pageY: touch.pageY, - timestamp: timestampForTouch(touch) - }); -} - -function printTouchBank() { - var printed = JSON.stringify(touchBank.slice(0, MAX_TOUCH_BANK)); - if (touchBank.length > MAX_TOUCH_BANK) { - printed += " (original size: " + touchBank.length + ")"; - } - return printed; -} - -var ResponderTouchHistoryStore = { - recordTouchTrack: function(topLevelType, nativeEvent) { - if (isMoveish(topLevelType)) { - nativeEvent.changedTouches.forEach(recordTouchMove); - } else if (isStartish(topLevelType)) { - nativeEvent.changedTouches.forEach(recordTouchStart); - touchHistory.numberActiveTouches = nativeEvent.touches.length; - if (touchHistory.numberActiveTouches === 1) { - touchHistory.indexOfSingleActiveTouch = - nativeEvent.touches[0].identifier; - } - } else if (isEndish(topLevelType)) { - nativeEvent.changedTouches.forEach(recordTouchEnd); - touchHistory.numberActiveTouches = nativeEvent.touches.length; - if (touchHistory.numberActiveTouches === 1) { - for (var i = 0; i < touchBank.length; i++) { - var touchTrackToCheck = touchBank[i]; - if (touchTrackToCheck != null && touchTrackToCheck.touchActive) { - touchHistory.indexOfSingleActiveTouch = i; - break; - } - } - { - var activeRecord = touchBank[touchHistory.indexOfSingleActiveTouch]; - warning( - activeRecord != null && activeRecord.touchActive, - "Cannot find single active touch." - ); - } - } - } - }, - - touchHistory: touchHistory -}; - -/** - * Accumulates items that must not be null or undefined. - * - * This is used to conserve memory by avoiding array allocations. - * - * @return {*|array<*>} An accumulation of items. - */ -function accumulate(current, next) { - invariant( - next != null, - "accumulate(...): Accumulated items must be not be null or undefined." - ); - - if (current == null) { - return next; - } - - // Both are not empty. Warning: Never call x.concat(y) when you are not - // certain that x is an Array (x could be a string with concat method). - if (Array.isArray(current)) { - return current.concat(next); - } - - if (Array.isArray(next)) { - return [current].concat(next); - } - - return [current, next]; -} - -/** - * Instance of element that should respond to touch/move types of interactions, - * as indicated explicitly by relevant callbacks. - */ -var responderInst = null; - -/** - * Count of current touches. A textInput should become responder iff the - * selection changes while there is a touch on the screen. - */ -var trackedTouchCount = 0; - -/** - * Last reported number of active touches. - */ -var previousActiveTouches = 0; - -var changeResponder = function(nextResponderInst, blockHostResponder) { - var oldResponderInst = responderInst; - responderInst = nextResponderInst; - if (ResponderEventPlugin.GlobalResponderHandler !== null) { - ResponderEventPlugin.GlobalResponderHandler.onChange( - oldResponderInst, - nextResponderInst, - blockHostResponder - ); - } -}; - -var eventTypes = { - /** - * On a `touchStart`/`mouseDown`, is it desired that this element become the - * responder? - */ - startShouldSetResponder: { - phasedRegistrationNames: { - bubbled: "onStartShouldSetResponder", - captured: "onStartShouldSetResponderCapture" - } - }, - - /** - * On a `scroll`, is it desired that this element become the responder? This - * is usually not needed, but should be used to retroactively infer that a - * `touchStart` had occurred during momentum scroll. During a momentum scroll, - * a touch start will be immediately followed by a scroll event if the view is - * currently scrolling. - * - * TODO: This shouldn't bubble. - */ - scrollShouldSetResponder: { - phasedRegistrationNames: { - bubbled: "onScrollShouldSetResponder", - captured: "onScrollShouldSetResponderCapture" - } - }, - - /** - * On text selection change, should this element become the responder? This - * is needed for text inputs or other views with native selection, so the - * JS view can claim the responder. - * - * TODO: This shouldn't bubble. - */ - selectionChangeShouldSetResponder: { - phasedRegistrationNames: { - bubbled: "onSelectionChangeShouldSetResponder", - captured: "onSelectionChangeShouldSetResponderCapture" - } - }, - - /** - * On a `touchMove`/`mouseMove`, is it desired that this element become the - * responder? - */ - moveShouldSetResponder: { - phasedRegistrationNames: { - bubbled: "onMoveShouldSetResponder", - captured: "onMoveShouldSetResponderCapture" - } - }, - - /** - * Direct responder events dispatched directly to responder. Do not bubble. - */ - responderStart: { registrationName: "onResponderStart" }, - responderMove: { registrationName: "onResponderMove" }, - responderEnd: { registrationName: "onResponderEnd" }, - responderRelease: { registrationName: "onResponderRelease" }, - responderTerminationRequest: { - registrationName: "onResponderTerminationRequest" - }, - responderGrant: { registrationName: "onResponderGrant" }, - responderReject: { registrationName: "onResponderReject" }, - responderTerminate: { registrationName: "onResponderTerminate" } -}; - -/** - * - * Responder System: - * ---------------- - * - * - A global, solitary "interaction lock" on a view. - * - If a node becomes the responder, it should convey visual feedback - * immediately to indicate so, either by highlighting or moving accordingly. - * - To be the responder means, that touches are exclusively important to that - * responder view, and no other view. - * - While touches are still occurring, the responder lock can be transferred to - * a new view, but only to increasingly "higher" views (meaning ancestors of - * the current responder). - * - * Responder being granted: - * ------------------------ - * - * - Touch starts, moves, and scrolls can cause an ID to become the responder. - * - We capture/bubble `startShouldSetResponder`/`moveShouldSetResponder` to - * the "appropriate place". - * - If nothing is currently the responder, the "appropriate place" is the - * initiating event's `targetID`. - * - If something *is* already the responder, the "appropriate place" is the - * first common ancestor of the event target and the current `responderInst`. - * - Some negotiation happens: See the timing diagram below. - * - Scrolled views automatically become responder. The reasoning is that a - * platform scroll view that isn't built on top of the responder system has - * began scrolling, and the active responder must now be notified that the - * interaction is no longer locked to it - the system has taken over. - * - * - Responder being released: - * As soon as no more touches that *started* inside of descendants of the - * *current* responderInst, an `onResponderRelease` event is dispatched to the - * current responder, and the responder lock is released. - * - * TODO: - * - on "end", a callback hook for `onResponderEndShouldRemainResponder` that - * determines if the responder lock should remain. - * - If a view shouldn't "remain" the responder, any active touches should by - * default be considered "dead" and do not influence future negotiations or - * bubble paths. It should be as if those touches do not exist. - * -- For multitouch: Usually a translate-z will choose to "remain" responder - * after one out of many touches ended. For translate-y, usually the view - * doesn't wish to "remain" responder after one of many touches end. - * - Consider building this on top of a `stopPropagation` model similar to - * `W3C` events. - * - Ensure that `onResponderTerminate` is called on touch cancels, whether or - * not `onResponderTerminationRequest` returns `true` or `false`. - * - */ - -/* Negotiation Performed - +-----------------------+ - / \ -Process low level events to + Current Responder + wantsResponderID -determine who to perform negot-| (if any exists at all) | -iation/transition | Otherwise just pass through| --------------------------------+----------------------------+------------------+ -Bubble to find first ID | | -to return true:wantsResponderID| | - | | - +-------------+ | | - | onTouchStart| | | - +------+------+ none | | - | return| | -+-----------v-------------+true| +------------------------+ | -|onStartShouldSetResponder|----->|onResponderStart (cur) |<-----------+ -+-----------+-------------+ | +------------------------+ | | - | | | +--------+-------+ - | returned true for| false:REJECT +-------->|onResponderReject - | wantsResponderID | | | +----------------+ - | (now attempt | +------------------+-----+ | - | handoff) | | onResponder | | - +------------------->| TerminationRequest| | - | +------------------+-----+ | - | | | +----------------+ - | true:GRANT +-------->|onResponderGrant| - | | +--------+-------+ - | +------------------------+ | | - | | onResponderTerminate |<-----------+ - | +------------------+-----+ | - | | | +----------------+ - | +-------->|onResponderStart| - | | +----------------+ -Bubble to find first ID | | -to return true:wantsResponderID| | - | | - +-------------+ | | - | onTouchMove | | | - +------+------+ none | | - | return| | -+-----------v-------------+true| +------------------------+ | -|onMoveShouldSetResponder |----->|onResponderMove (cur) |<-----------+ -+-----------+-------------+ | +------------------------+ | | - | | | +--------+-------+ - | returned true for| false:REJECT +-------->|onResponderRejec| - | wantsResponderID | | | +----------------+ - | (now attempt | +------------------+-----+ | - | handoff) | | onResponder | | - +------------------->| TerminationRequest| | - | +------------------+-----+ | - | | | +----------------+ - | true:GRANT +-------->|onResponderGrant| - | | +--------+-------+ - | +------------------------+ | | - | | onResponderTerminate |<-----------+ - | +------------------+-----+ | - | | | +----------------+ - | +-------->|onResponderMove | - | | +----------------+ - | | - | | - Some active touch started| | - inside current responder | +------------------------+ | - +------------------------->| onResponderEnd | | - | | +------------------------+ | - +---+---------+ | | - | onTouchEnd | | | - +---+---------+ | | - | | +------------------------+ | - +------------------------->| onResponderEnd | | - No active touches started| +-----------+------------+ | - inside current responder | | | - | v | - | +------------------------+ | - | | onResponderRelease | | - | +------------------------+ | - | | - + + */ - -/** - * A note about event ordering in the `EventPluginHub`. - * - * Suppose plugins are injected in the following order: - * - * `[R, S, C]` - * - * To help illustrate the example, assume `S` is `SimpleEventPlugin` (for - * `onClick` etc) and `R` is `ResponderEventPlugin`. - * - * "Deferred-Dispatched Events": - * - * - The current event plugin system will traverse the list of injected plugins, - * in order, and extract events by collecting the plugin's return value of - * `extractEvents()`. - * - These events that are returned from `extractEvents` are "deferred - * dispatched events". - * - When returned from `extractEvents`, deferred-dispatched events contain an - * "accumulation" of deferred dispatches. - * - These deferred dispatches are accumulated/collected before they are - * returned, but processed at a later time by the `EventPluginHub` (hence the - * name deferred). - * - * In the process of returning their deferred-dispatched events, event plugins - * themselves can dispatch events on-demand without returning them from - * `extractEvents`. Plugins might want to do this, so that they can use event - * dispatching as a tool that helps them decide which events should be extracted - * in the first place. - * - * "On-Demand-Dispatched Events": - * - * - On-demand-dispatched events are not returned from `extractEvents`. - * - On-demand-dispatched events are dispatched during the process of returning - * the deferred-dispatched events. - * - They should not have side effects. - * - They should be avoided, and/or eventually be replaced with another - * abstraction that allows event plugins to perform multiple "rounds" of event - * extraction. - * - * Therefore, the sequence of event dispatches becomes: - * - * - `R`s on-demand events (if any) (dispatched by `R` on-demand) - * - `S`s on-demand events (if any) (dispatched by `S` on-demand) - * - `C`s on-demand events (if any) (dispatched by `C` on-demand) - * - `R`s extracted events (if any) (dispatched by `EventPluginHub`) - * - `S`s extracted events (if any) (dispatched by `EventPluginHub`) - * - `C`s extracted events (if any) (dispatched by `EventPluginHub`) - * - * In the case of `ResponderEventPlugin`: If the `startShouldSetResponder` - * on-demand dispatch returns `true` (and some other details are satisfied) the - * `onResponderGrant` deferred dispatched event is returned from - * `extractEvents`. The sequence of dispatch executions in this case - * will appear as follows: - * - * - `startShouldSetResponder` (`ResponderEventPlugin` dispatches on-demand) - * - `touchStartCapture` (`EventPluginHub` dispatches as usual) - * - `touchStart` (`EventPluginHub` dispatches as usual) - * - `responderGrant/Reject` (`EventPluginHub` dispatches as usual) - */ - -function setResponderAndExtractTransfer( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget -) { - var shouldSetEventType = isStartish(topLevelType) - ? eventTypes.startShouldSetResponder - : isMoveish(topLevelType) - ? eventTypes.moveShouldSetResponder - : topLevelType === "topSelectionChange" - ? eventTypes.selectionChangeShouldSetResponder - : eventTypes.scrollShouldSetResponder; - - // TODO: stop one short of the current responder. - var bubbleShouldSetFrom = !responderInst - ? targetInst - : getLowestCommonAncestor(responderInst, targetInst); - - // When capturing/bubbling the "shouldSet" event, we want to skip the target - // (deepest ID) if it happens to be the current responder. The reasoning: - // It's strange to get an `onMoveShouldSetResponder` when you're *already* - // the responder. - var skipOverBubbleShouldSetFrom = bubbleShouldSetFrom === responderInst; - var shouldSetEvent = ResponderSyntheticEvent.getPooled( - shouldSetEventType, - bubbleShouldSetFrom, - nativeEvent, - nativeEventTarget - ); - shouldSetEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; - if (skipOverBubbleShouldSetFrom) { - accumulateTwoPhaseDispatchesSkipTarget(shouldSetEvent); - } else { - accumulateTwoPhaseDispatches(shouldSetEvent); - } - var wantsResponderInst = executeDispatchesInOrderStopAtTrue(shouldSetEvent); - if (!shouldSetEvent.isPersistent()) { - shouldSetEvent.constructor.release(shouldSetEvent); - } - - if (!wantsResponderInst || wantsResponderInst === responderInst) { - return null; - } - var extracted; - var grantEvent = ResponderSyntheticEvent.getPooled( - eventTypes.responderGrant, - wantsResponderInst, - nativeEvent, - nativeEventTarget - ); - grantEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; - - accumulateDirectDispatches(grantEvent); - var blockHostResponder = executeDirectDispatch(grantEvent) === true; - if (responderInst) { - var terminationRequestEvent = ResponderSyntheticEvent.getPooled( - eventTypes.responderTerminationRequest, - responderInst, - nativeEvent, - nativeEventTarget - ); - terminationRequestEvent.touchHistory = - ResponderTouchHistoryStore.touchHistory; - accumulateDirectDispatches(terminationRequestEvent); - var shouldSwitch = - !hasDispatches(terminationRequestEvent) || - executeDirectDispatch(terminationRequestEvent); - if (!terminationRequestEvent.isPersistent()) { - terminationRequestEvent.constructor.release(terminationRequestEvent); - } - - if (shouldSwitch) { - var terminateEvent = ResponderSyntheticEvent.getPooled( - eventTypes.responderTerminate, - responderInst, - nativeEvent, - nativeEventTarget - ); - terminateEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; - accumulateDirectDispatches(terminateEvent); - extracted = accumulate(extracted, [grantEvent, terminateEvent]); - changeResponder(wantsResponderInst, blockHostResponder); - } else { - var rejectEvent = ResponderSyntheticEvent.getPooled( - eventTypes.responderReject, - wantsResponderInst, - nativeEvent, - nativeEventTarget - ); - rejectEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; - accumulateDirectDispatches(rejectEvent); - extracted = accumulate(extracted, rejectEvent); - } - } else { - extracted = accumulate(extracted, grantEvent); - changeResponder(wantsResponderInst, blockHostResponder); - } - return extracted; -} - -/** - * A transfer is a negotiation between a currently set responder and the next - * element to claim responder status. Any start event could trigger a transfer - * of responderInst. Any move event could trigger a transfer. - * - * @param {string} topLevelType Record from `BrowserEventConstants`. - * @return {boolean} True if a transfer of responder could possibly occur. - */ -function canTriggerTransfer(topLevelType, topLevelInst, nativeEvent) { - return ( - topLevelInst && - // responderIgnoreScroll: We are trying to migrate away from specifically - // tracking native scroll events here and responderIgnoreScroll indicates we - // will send topTouchCancel to handle canceling touch events instead - ((topLevelType === "topScroll" && !nativeEvent.responderIgnoreScroll) || - (trackedTouchCount > 0 && topLevelType === "topSelectionChange") || - isStartish(topLevelType) || - isMoveish(topLevelType)) - ); -} - -/** - * Returns whether or not this touch end event makes it such that there are no - * longer any touches that started inside of the current `responderInst`. - * - * @param {NativeEvent} nativeEvent Native touch end event. - * @return {boolean} Whether or not this touch end event ends the responder. - */ -function noResponderTouches(nativeEvent) { - var touches = nativeEvent.touches; - if (!touches || touches.length === 0) { - return true; - } - for (var i = 0; i < touches.length; i++) { - var activeTouch = touches[i]; - var target = activeTouch.target; - if (target !== null && target !== undefined && target !== 0) { - // Is the original touch location inside of the current responder? - var targetInst = getInstanceFromNode(target); - if (isAncestor(responderInst, targetInst)) { - return false; - } - } - } - return true; -} - -var ResponderEventPlugin = { - /* For unit testing only */ - _getResponder: function() { - return responderInst; - }, - - eventTypes: eventTypes, - - /** - * We must be resilient to `targetInst` being `null` on `touchMove` or - * `touchEnd`. On certain platforms, this means that a native scroll has - * assumed control and the original touch targets are destroyed. - */ - extractEvents: function( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget - ) { - if (isStartish(topLevelType)) { - trackedTouchCount += 1; - } else if (isEndish(topLevelType)) { - if (trackedTouchCount >= 0) { - trackedTouchCount -= 1; - } else { - console.error( - "Ended a touch event which was not counted in `trackedTouchCount`." - ); - return null; - } - } - - ResponderTouchHistoryStore.recordTouchTrack(topLevelType, nativeEvent); - - var extracted = canTriggerTransfer(topLevelType, targetInst, nativeEvent) - ? setResponderAndExtractTransfer( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget - ) - : null; - // Responder may or may not have transferred on a new touch start/move. - // Regardless, whoever is the responder after any potential transfer, we - // direct all touch start/move/ends to them in the form of - // `onResponderMove/Start/End`. These will be called for *every* additional - // finger that move/start/end, dispatched directly to whoever is the - // current responder at that moment, until the responder is "released". - // - // These multiple individual change touch events are are always bookended - // by `onResponderGrant`, and one of - // (`onResponderRelease/onResponderTerminate`). - var isResponderTouchStart = responderInst && isStartish(topLevelType); - var isResponderTouchMove = responderInst && isMoveish(topLevelType); - var isResponderTouchEnd = responderInst && isEndish(topLevelType); - var incrementalTouch = isResponderTouchStart - ? eventTypes.responderStart - : isResponderTouchMove - ? eventTypes.responderMove - : isResponderTouchEnd ? eventTypes.responderEnd : null; - - if (incrementalTouch) { - var gesture = ResponderSyntheticEvent.getPooled( - incrementalTouch, - responderInst, - nativeEvent, - nativeEventTarget - ); - gesture.touchHistory = ResponderTouchHistoryStore.touchHistory; - accumulateDirectDispatches(gesture); - extracted = accumulate(extracted, gesture); - } - - var isResponderTerminate = - responderInst && topLevelType === "topTouchCancel"; - var isResponderRelease = - responderInst && - !isResponderTerminate && - isEndish(topLevelType) && - noResponderTouches(nativeEvent); - var finalTouch = isResponderTerminate - ? eventTypes.responderTerminate - : isResponderRelease ? eventTypes.responderRelease : null; - if (finalTouch) { - var finalEvent = ResponderSyntheticEvent.getPooled( - finalTouch, - responderInst, - nativeEvent, - nativeEventTarget - ); - finalEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; - accumulateDirectDispatches(finalEvent); - extracted = accumulate(extracted, finalEvent); - changeResponder(null); - } - - var numberActiveTouches = - ResponderTouchHistoryStore.touchHistory.numberActiveTouches; - if ( - ResponderEventPlugin.GlobalInteractionHandler && - numberActiveTouches !== previousActiveTouches - ) { - ResponderEventPlugin.GlobalInteractionHandler.onChange( - numberActiveTouches - ); - } - previousActiveTouches = numberActiveTouches; - - return extracted; - }, - - GlobalResponderHandler: null, - GlobalInteractionHandler: null, - - injection: { - /** - * @param {{onChange: (ReactID, ReactID) => void} GlobalResponderHandler - * Object that handles any change in responder. Use this to inject - * integration with an existing touch handling system etc. - */ - injectGlobalResponderHandler: function(GlobalResponderHandler) { - ResponderEventPlugin.GlobalResponderHandler = GlobalResponderHandler; - }, - - /** - * @param {{onChange: (numberActiveTouches) => void} GlobalInteractionHandler - * Object that handles any change in the number of active touches. - */ - injectGlobalInteractionHandler: function(GlobalInteractionHandler) { - ResponderEventPlugin.GlobalInteractionHandler = GlobalInteractionHandler; - } - } -}; - -var customBubblingEventTypes = {}; -var customDirectEventTypes = {}; - -var ReactNativeBridgeEventPlugin = { - eventTypes: {}, - - /** - * @see {EventPluginHub.extractEvents} - */ - extractEvents: function( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget - ) { - var bubbleDispatchConfig = customBubblingEventTypes[topLevelType]; - var directDispatchConfig = customDirectEventTypes[topLevelType]; - invariant( - bubbleDispatchConfig || directDispatchConfig, - 'Unsupported top level event type "%s" dispatched', - topLevelType - ); - var event = SyntheticEvent$1.getPooled( - bubbleDispatchConfig || directDispatchConfig, - targetInst, - nativeEvent, - nativeEventTarget - ); - if (bubbleDispatchConfig) { - accumulateTwoPhaseDispatches(event); - } else if (directDispatchConfig) { - accumulateDirectDispatches(event); - } else { - return null; - } - return event; - }, - - processEventTypes: function(viewConfig) { - var bubblingEventTypes = viewConfig.bubblingEventTypes, - directEventTypes = viewConfig.directEventTypes; - - { - if (bubblingEventTypes != null && directEventTypes != null) { - for (var topLevelType in directEventTypes) { - invariant( - bubblingEventTypes[topLevelType] == null, - "Event cannot be both direct and bubbling: %s", - topLevelType - ); - } - } - } - - if (bubblingEventTypes != null) { - for (var _topLevelType in bubblingEventTypes) { - if (customBubblingEventTypes[_topLevelType] == null) { - ReactNativeBridgeEventPlugin.eventTypes[ - _topLevelType - ] = customBubblingEventTypes[_topLevelType] = - bubblingEventTypes[_topLevelType]; - } - } - } - - if (directEventTypes != null) { - for (var _topLevelType2 in directEventTypes) { - if (customDirectEventTypes[_topLevelType2] == null) { - ReactNativeBridgeEventPlugin.eventTypes[ - _topLevelType2 - ] = customDirectEventTypes[_topLevelType2] = - directEventTypes[_topLevelType2]; - } - } - } - } -}; - -var instanceCache = {}; -var instanceProps = {}; - -function precacheFiberNode(hostInst, tag) { - instanceCache[tag] = hostInst; -} - -function uncacheFiberNode(tag) { - delete instanceCache[tag]; - delete instanceProps[tag]; -} - -function getInstanceFromTag(tag) { - return instanceCache[tag] || null; -} - -function getTagFromInstance(inst) { - var tag = inst.stateNode._nativeTag; - invariant(tag, "All native instances should have a tag."); - return tag; -} - -function getFiberCurrentPropsFromNode$1(stateNode) { - return instanceProps[stateNode._nativeTag] || null; -} - -function updateFiberProps(tag, props) { - instanceProps[tag] = props; -} - -var ReactNativeComponentTree = Object.freeze({ - precacheFiberNode: precacheFiberNode, - uncacheFiberNode: uncacheFiberNode, - getClosestInstanceFromNode: getInstanceFromTag, - getInstanceFromNode: getInstanceFromTag, - getNodeFromInstance: getTagFromInstance, - getFiberCurrentPropsFromNode: getFiberCurrentPropsFromNode$1, - updateFiberProps: updateFiberProps -}); - -// Use to restore controlled state after a change event has fired. - -var fiberHostComponent = null; - -var restoreTarget = null; -var restoreQueue = null; - -function restoreStateOfTarget(target) { - // We perform this translation at the end of the event loop so that we - // always receive the correct fiber here - var internalInstance = getInstanceFromNode(target); - if (!internalInstance) { - // Unmounted - return; - } - invariant( - fiberHostComponent && - typeof fiberHostComponent.restoreControlledState === "function", - "Fiber needs to be injected to handle a fiber target for controlled " + - "events. This error is likely caused by a bug in React. Please file an issue." - ); - var props = getFiberCurrentPropsFromNode(internalInstance.stateNode); - fiberHostComponent.restoreControlledState( - internalInstance.stateNode, - internalInstance.type, - props - ); -} - -function restoreStateIfNeeded() { - if (!restoreTarget) { - return; - } - var target = restoreTarget; - var queuedTargets = restoreQueue; - restoreTarget = null; - restoreQueue = null; - - restoreStateOfTarget(target); - if (queuedTargets) { - for (var i = 0; i < queuedTargets.length; i++) { - restoreStateOfTarget(queuedTargets[i]); - } - } -} - -// Used as a way to call batchedUpdates when we don't have a reference to -// the renderer. Such as when we're dispatching events or if third party -// libraries need to call batchedUpdates. Eventually, this API will go away when -// everything is batched by default. We'll then have a similar API to opt-out of -// scheduled work and instead do synchronous work. - -// Defaults -var fiberBatchedUpdates = function(fn, bookkeeping) { - return fn(bookkeeping); -}; - -var isNestingBatched = false; -function batchedUpdates(fn, bookkeeping) { - if (isNestingBatched) { - // If we are currently inside another batch, we need to wait until it - // fully completes before restoring state. Therefore, we add the target to - // a queue of work. - return fiberBatchedUpdates(fn, bookkeeping); - } - isNestingBatched = true; - try { - return fiberBatchedUpdates(fn, bookkeeping); - } finally { - // Here we wait until all updates have propagated, which is important - // when using controlled components within layers: - // https://github.com/facebook/react/issues/1698 - // Then we restore state of any controlled component. - isNestingBatched = false; - restoreStateIfNeeded(); - } -} - -var ReactGenericBatchingInjection = { - injectFiberBatchedUpdates: function(_batchedUpdates) { - fiberBatchedUpdates = _batchedUpdates; - } -}; - -var injection$2 = ReactGenericBatchingInjection; - -function runEventQueueInBatch(events) { - enqueueEvents(events); - processEventQueue(false); -} - -/** - * Streams a fired top-level event to `EventPluginHub` where plugins have the - * opportunity to create `ReactEvent`s to be dispatched. - */ -function handleTopLevel( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget -) { - var events = extractEvents( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget - ); - runEventQueueInBatch(events); -} - -/** - * Keeps track of allocating and associating native "tags" which are numeric, - * unique view IDs. All the native tags are negative numbers, to avoid - * collisions, but in the JS we keep track of them as positive integers to store - * them effectively in Arrays. So we must refer to them as "inverses" of the - * native tags (that are * normally negative). - * - * It *must* be the case that every `rootNodeID` always maps to the exact same - * `tag` forever. The easiest way to accomplish this is to never delete - * anything from this table. - * Why: Because `dangerouslyReplaceNodeWithMarkupByID` relies on being able to - * unmount a component with a `rootNodeID`, then mount a new one in its place, - */ -var INITIAL_TAG_COUNT = 1; -var ReactNativeTagHandles = { - tagsStartAt: INITIAL_TAG_COUNT, - tagCount: INITIAL_TAG_COUNT, - - allocateTag: function() { - // Skip over root IDs as those are reserved for native - while (this.reactTagIsNativeTopRootID(ReactNativeTagHandles.tagCount)) { - ReactNativeTagHandles.tagCount++; - } - var tag = ReactNativeTagHandles.tagCount; - ReactNativeTagHandles.tagCount++; - return tag; - }, - - assertRootTag: function(tag) { - invariant( - this.reactTagIsNativeTopRootID(tag), - "Expect a native root tag, instead got %s", - tag - ); - }, - - reactTagIsNativeTopRootID: function(reactTag) { - // We reserve all tags that are 1 mod 10 for native root views - return reactTag % 10 === 1; - } -}; - -/** - * Version of `ReactBrowserEventEmitter` that works on the receiving side of a - * serialized worker boundary. - */ - -// Shared default empty native event - conserve memory. -var EMPTY_NATIVE_EVENT = {}; - -/** - * Selects a subsequence of `Touch`es, without destroying `touches`. - * - * @param {Array} touches Deserialized touch objects. - * @param {Array} indices Indices by which to pull subsequence. - * @return {Array} Subsequence of touch objects. - */ -var touchSubsequence = function(touches, indices) { - var ret = []; - for (var i = 0; i < indices.length; i++) { - ret.push(touches[indices[i]]); - } - return ret; -}; - -/** - * TODO: Pool all of this. - * - * Destroys `touches` by removing touch objects at indices `indices`. This is - * to maintain compatibility with W3C touch "end" events, where the active - * touches don't include the set that has just been "ended". - * - * @param {Array} touches Deserialized touch objects. - * @param {Array} indices Indices to remove from `touches`. - * @return {Array} Subsequence of removed touch objects. - */ -var removeTouchesAtIndices = function(touches, indices) { - var rippedOut = []; - // use an unsafe downcast to alias to nullable elements, - // so we can delete and then compact. - var temp = touches; - for (var i = 0; i < indices.length; i++) { - var index = indices[i]; - rippedOut.push(touches[index]); - temp[index] = null; - } - var fillAt = 0; - for (var j = 0; j < temp.length; j++) { - var cur = temp[j]; - if (cur !== null) { - temp[fillAt++] = cur; - } - } - temp.length = fillAt; - return rippedOut; -}; - -/** - * Internal version of `receiveEvent` in terms of normalized (non-tag) - * `rootNodeID`. - * - * @see receiveEvent. - * - * @param {rootNodeID} rootNodeID React root node ID that event occurred on. - * @param {TopLevelType} topLevelType Top level type of event. - * @param {?object} nativeEventParam Object passed from native. - */ -function _receiveRootNodeIDEvent(rootNodeID, topLevelType, nativeEventParam) { - var nativeEvent = nativeEventParam || EMPTY_NATIVE_EVENT; - var inst = getInstanceFromTag(rootNodeID); - batchedUpdates(function() { - handleTopLevel(topLevelType, inst, nativeEvent, nativeEvent.target); - }); - // React Native doesn't use ReactControlledComponent but if it did, here's - // where it would do it. -} - -/** - * Publicly exposed method on module for native objc to invoke when a top - * level event is extracted. - * @param {rootNodeID} rootNodeID React root node ID that event occurred on. - * @param {TopLevelType} topLevelType Top level type of event. - * @param {object} nativeEventParam Object passed from native. - */ -function receiveEvent(rootNodeID, topLevelType, nativeEventParam) { - _receiveRootNodeIDEvent(rootNodeID, topLevelType, nativeEventParam); -} - -/** - * Simple multi-wrapper around `receiveEvent` that is intended to receive an - * efficient representation of `Touch` objects, and other information that - * can be used to construct W3C compliant `Event` and `Touch` lists. - * - * This may create dispatch behavior that differs than web touch handling. We - * loop through each of the changed touches and receive it as a single event. - * So two `touchStart`/`touchMove`s that occur simultaneously are received as - * two separate touch event dispatches - when they arguably should be one. - * - * This implementation reuses the `Touch` objects themselves as the `Event`s - * since we dispatch an event for each touch (though that might not be spec - * compliant). The main purpose of reusing them is to save allocations. - * - * TODO: Dispatch multiple changed touches in one event. The bubble path - * could be the first common ancestor of all the `changedTouches`. - * - * One difference between this behavior and W3C spec: cancelled touches will - * not appear in `.touches`, or in any future `.touches`, though they may - * still be "actively touching the surface". - * - * Web desktop polyfills only need to construct a fake touch event with - * identifier 0, also abandoning traditional click handlers. - */ -function receiveTouches(eventTopLevelType, touches, changedIndices) { - var changedTouches = - eventTopLevelType === "topTouchEnd" || - eventTopLevelType === "topTouchCancel" - ? removeTouchesAtIndices(touches, changedIndices) - : touchSubsequence(touches, changedIndices); - - for (var jj = 0; jj < changedTouches.length; jj++) { - var touch = changedTouches[jj]; - // Touch objects can fulfill the role of `DOM` `Event` objects if we set - // the `changedTouches`/`touches`. This saves allocations. - touch.changedTouches = changedTouches; - touch.touches = touches; - var nativeEvent = touch; - var rootNodeID = null; - var target = nativeEvent.target; - if (target !== null && target !== undefined) { - if (target < ReactNativeTagHandles.tagsStartAt) { - { - warning( - false, - "A view is reporting that a touch occurred on tag zero." - ); - } - } else { - rootNodeID = target; - } - } - // $FlowFixMe Shouldn't we *not* call it if rootNodeID is null? - _receiveRootNodeIDEvent(rootNodeID, eventTopLevelType, nativeEvent); - } -} - -var ReactNativeEventEmitter = Object.freeze({ - getListener: getListener, - registrationNames: registrationNameModules, - _receiveRootNodeIDEvent: _receiveRootNodeIDEvent, - receiveEvent: receiveEvent, - receiveTouches: receiveTouches, - handleTopLevel: handleTopLevel -}); - -var ReactNativeEventPluginOrder = [ - "ResponderEventPlugin", - "ReactNativeBridgeEventPlugin" -]; - -// Module provided by RN: -var ReactNativeGlobalResponderHandler = { - onChange: function(from, to, blockNativeResponder) { - if (to !== null) { - var tag = to.stateNode._nativeTag; - UIManager.setJSResponder(tag, blockNativeResponder); - } else { - UIManager.clearJSResponder(); - } - } -}; - -/** - * Make sure essential globals are available and are patched correctly. Please don't remove this - * line. Bundles created by react-packager `require` it before executing any application code. This - * ensures it exists in the dependency graph and can be `require`d. - * TODO: require this in packager, not in React #10932517 - */ -// Module provided by RN: -// Module provided by RN: -/** - * Register the event emitter with the native bridge - */ -RCTEventEmitter.register(ReactNativeEventEmitter); - -/** - * Inject module for resolving DOM hierarchy and plugin ordering. - */ -injection.injectEventPluginOrder(ReactNativeEventPluginOrder); -injection$1.injectComponentTree(ReactNativeComponentTree); - -ResponderEventPlugin.injection.injectGlobalResponderHandler( - ReactNativeGlobalResponderHandler -); - -/** - * Some important event plugins included by default (without having to require - * them). - */ -injection.injectEventPluginsByName({ - ResponderEventPlugin: ResponderEventPlugin, - ReactNativeBridgeEventPlugin: ReactNativeBridgeEventPlugin -}); - -var defaultShowDialog = function(capturedError) { - return true; -}; - -var showDialog = defaultShowDialog; - -function logCapturedError(capturedError) { - var logError = showDialog(capturedError); - - // Allow injected showDialog() to prevent default console.error logging. - // This enables renderers like ReactNative to better manage redbox behavior. - if (logError === false) { - return; - } - - var error = capturedError.error; - var suppressLogging = error && error.suppressReactErrorLogging; - if (suppressLogging) { - return; - } - - { - var componentName = capturedError.componentName, - componentStack = capturedError.componentStack, - errorBoundaryName = capturedError.errorBoundaryName, - errorBoundaryFound = capturedError.errorBoundaryFound, - willRetry = capturedError.willRetry; - - var componentNameMessage = componentName - ? "The above error occurred in the <" + componentName + "> component:" - : "The above error occurred in one of your React components:"; - - var errorBoundaryMessage = void 0; - // errorBoundaryFound check is sufficient; errorBoundaryName check is to satisfy Flow. - if (errorBoundaryFound && errorBoundaryName) { - if (willRetry) { - errorBoundaryMessage = - "React will try to recreate this component tree from scratch " + - ("using the error boundary you provided, " + errorBoundaryName + "."); - } else { - errorBoundaryMessage = - "This error was initially handled by the error boundary " + - errorBoundaryName + - ".\n" + - "Recreating the tree from scratch failed so React will unmount the tree."; - } - } else { - errorBoundaryMessage = - "Consider adding an error boundary to your tree to customize error handling behavior.\n" + - "Visit https://fb.me/react-error-boundaries to learn more about error boundaries."; - } - var combinedMessage = - "" + - componentNameMessage + - componentStack + - "\n\n" + - ("" + errorBoundaryMessage); - - // In development, we provide our own message with just the component stack. - // We don't include the original error message and JS stack because the browser - // has already printed it. Even if the application swallows the error, it is still - // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils. - console.error(combinedMessage); - } -} - -var injection$4 = { - /** - * Display custom dialog for lifecycle errors. - * Return false to prevent default behavior of logging to console.error. - */ - injectDialog: function(fn) { - invariant( - showDialog === defaultShowDialog, - "The custom dialog was already injected." - ); - invariant( - typeof fn === "function", - "Injected showDialog() must be a function." - ); - showDialog = fn; - } -}; - -// The Symbol used to tag the ReactElement-like types. If there is no native Symbol -// nor polyfill, then a plain number is used for performance. -var hasSymbol = typeof Symbol === "function" && Symbol["for"]; - -var REACT_ELEMENT_TYPE = hasSymbol ? Symbol["for"]("react.element") : 0xeac7; -var REACT_CALL_TYPE = hasSymbol ? Symbol["for"]("react.call") : 0xeac8; -var REACT_RETURN_TYPE = hasSymbol ? Symbol["for"]("react.return") : 0xeac9; -var REACT_PORTAL_TYPE = hasSymbol ? Symbol["for"]("react.portal") : 0xeaca; -var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol["for"]("react.fragment") : 0xeacb; - -var MAYBE_ITERATOR_SYMBOL = typeof Symbol === "function" && Symbol.iterator; -var FAUX_ITERATOR_SYMBOL = "@@iterator"; - -function getIteratorFn(maybeIterable) { - if (maybeIterable === null || typeof maybeIterable === "undefined") { - return null; - } - var maybeIterator = - (MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL]) || - maybeIterable[FAUX_ITERATOR_SYMBOL]; - if (typeof maybeIterator === "function") { - return maybeIterator; - } - return null; -} - -function createPortal( - children, - containerInfo, - // TODO: figure out the API for cross-renderer implementation. - implementation -) { - var key = - arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null; - - return { - // This tag allow us to uniquely identify this as a React Portal - $$typeof: REACT_PORTAL_TYPE, - key: key == null ? null : "" + key, - children: children, - containerInfo: containerInfo, - implementation: implementation - }; -} - -var TouchHistoryMath = { - /** - * This code is optimized and not intended to look beautiful. This allows - * computing of touch centroids that have moved after `touchesChangedAfter` - * timeStamp. You can compute the current centroid involving all touches - * moves after `touchesChangedAfter`, or you can compute the previous - * centroid of all touches that were moved after `touchesChangedAfter`. - * - * @param {TouchHistoryMath} touchHistory Standard Responder touch track - * data. - * @param {number} touchesChangedAfter timeStamp after which moved touches - * are considered "actively moving" - not just "active". - * @param {boolean} isXAxis Consider `x` dimension vs. `y` dimension. - * @param {boolean} ofCurrent Compute current centroid for actively moving - * touches vs. previous centroid of now actively moving touches. - * @return {number} value of centroid in specified dimension. - */ - centroidDimension: function( - touchHistory, - touchesChangedAfter, - isXAxis, - ofCurrent - ) { - var touchBank = touchHistory.touchBank; - var total = 0; - var count = 0; - - var oneTouchData = - touchHistory.numberActiveTouches === 1 - ? touchHistory.touchBank[touchHistory.indexOfSingleActiveTouch] - : null; - - if (oneTouchData !== null) { - if ( - oneTouchData.touchActive && - oneTouchData.currentTimeStamp > touchesChangedAfter - ) { - total += - ofCurrent && isXAxis - ? oneTouchData.currentPageX - : ofCurrent && !isXAxis - ? oneTouchData.currentPageY - : !ofCurrent && isXAxis - ? oneTouchData.previousPageX - : oneTouchData.previousPageY; - count = 1; - } - } else { - for (var i = 0; i < touchBank.length; i++) { - var touchTrack = touchBank[i]; - if ( - touchTrack !== null && - touchTrack !== undefined && - touchTrack.touchActive && - touchTrack.currentTimeStamp >= touchesChangedAfter - ) { - var toAdd; // Yuck, program temporarily in invalid state. - if (ofCurrent && isXAxis) { - toAdd = touchTrack.currentPageX; - } else if (ofCurrent && !isXAxis) { - toAdd = touchTrack.currentPageY; - } else if (!ofCurrent && isXAxis) { - toAdd = touchTrack.previousPageX; - } else { - toAdd = touchTrack.previousPageY; - } - total += toAdd; - count++; - } - } - } - return count > 0 ? total / count : TouchHistoryMath.noCentroid; - }, - - currentCentroidXOfTouchesChangedAfter: function( - touchHistory, - touchesChangedAfter - ) { - return TouchHistoryMath.centroidDimension( - touchHistory, - touchesChangedAfter, - true, // isXAxis - true - ); - }, - - currentCentroidYOfTouchesChangedAfter: function( - touchHistory, - touchesChangedAfter - ) { - return TouchHistoryMath.centroidDimension( - touchHistory, - touchesChangedAfter, - false, // isXAxis - true - ); - }, - - previousCentroidXOfTouchesChangedAfter: function( - touchHistory, - touchesChangedAfter - ) { - return TouchHistoryMath.centroidDimension( - touchHistory, - touchesChangedAfter, - true, // isXAxis - false - ); - }, - - previousCentroidYOfTouchesChangedAfter: function( - touchHistory, - touchesChangedAfter - ) { - return TouchHistoryMath.centroidDimension( - touchHistory, - touchesChangedAfter, - false, // isXAxis - false - ); - }, - - currentCentroidX: function(touchHistory) { - return TouchHistoryMath.centroidDimension( - touchHistory, - 0, // touchesChangedAfter - true, // isXAxis - true - ); - }, - - currentCentroidY: function(touchHistory) { - return TouchHistoryMath.centroidDimension( - touchHistory, - 0, // touchesChangedAfter - false, // isXAxis - true - ); - }, - - noCentroid: -1 -}; - -var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; - -var ReactCurrentOwner = ReactInternals.ReactCurrentOwner; -var ReactDebugCurrentFrame = ReactInternals.ReactDebugCurrentFrame; - -var ReactGlobalSharedState = Object.freeze({ - ReactCurrentOwner: ReactCurrentOwner, - ReactDebugCurrentFrame: ReactDebugCurrentFrame -}); - -// TODO: this is special because it gets imported during build. - -var ReactVersion = "16.2.0"; - -// Module provided by RN: -/** - * Intercept lifecycle errors and ensure they are shown with the correct stack - * trace within the native redbox component. - */ -function showDialog$1(capturedError) { - var componentStack = capturedError.componentStack, - error = capturedError.error; - - var errorToHandle = void 0; - - // Typically Errors are thrown but eg strings or null can be thrown as well. - if (error instanceof Error) { - var message = error.message, - name = error.name; - - var summary = message ? name + ": " + message : name; - - errorToHandle = error; - - try { - errorToHandle.message = - summary + "\n\nThis error is located at:" + componentStack; - } catch (e) {} - } else if (typeof error === "string") { - errorToHandle = new Error( - error + "\n\nThis error is located at:" + componentStack - ); - } else { - errorToHandle = new Error("Unspecified error at:" + componentStack); - } - - ExceptionsManager.handleException(errorToHandle, false); - - // Return false here to prevent ReactFiberErrorLogger default behavior of - // logging error details to console.error. Calls to console.error are - // automatically routed to the native redbox controller, which we've already - // done above by calling ExceptionsManager. - return false; -} - -function _classCallCheck(instance, Constructor) { - if (!(instance instanceof Constructor)) { - throw new TypeError("Cannot call a class as a function"); - } -} - -var objects = {}; -var uniqueID = 1; -var emptyObject$2 = {}; - -var ReactNativePropRegistry = (function() { - function ReactNativePropRegistry() { - _classCallCheck(this, ReactNativePropRegistry); - } - - ReactNativePropRegistry.register = function register(object) { - var id = ++uniqueID; - { - Object.freeze(object); - } - objects[id] = object; - return id; - }; - - ReactNativePropRegistry.getByID = function getByID(id) { - if (!id) { - // Used in the style={[condition && id]} pattern, - // we want it to be a no-op when the value is false or null - return emptyObject$2; - } - - var object = objects[id]; - if (!object) { - console.warn("Invalid style with id `" + id + "`. Skipping ..."); - return emptyObject$2; - } - return object; - }; - - return ReactNativePropRegistry; -})(); - -// Modules provided by RN: -var emptyObject$1 = {}; - -/** - * Create a payload that contains all the updates between two sets of props. - * - * These helpers are all encapsulated into a single module, because they use - * mutation as a performance optimization which leads to subtle shared - * dependencies between the code paths. To avoid this mutable state leaking - * across modules, I've kept them isolated to this module. - */ - -// Tracks removed keys -var removedKeys = null; -var removedKeyCount = 0; - -function defaultDiffer(prevProp, nextProp) { - if (typeof nextProp !== "object" || nextProp === null) { - // Scalars have already been checked for equality - return true; - } else { - // For objects and arrays, the default diffing algorithm is a deep compare - return deepDiffer(prevProp, nextProp); - } -} - -function resolveObject(idOrObject) { - if (typeof idOrObject === "number") { - return ReactNativePropRegistry.getByID(idOrObject); - } - return idOrObject; -} - -function restoreDeletedValuesInNestedArray( - updatePayload, - node, - validAttributes -) { - if (Array.isArray(node)) { - var i = node.length; - while (i-- && removedKeyCount > 0) { - restoreDeletedValuesInNestedArray( - updatePayload, - node[i], - validAttributes - ); - } - } else if (node && removedKeyCount > 0) { - var obj = resolveObject(node); - for (var propKey in removedKeys) { - if (!removedKeys[propKey]) { - continue; - } - var nextProp = obj[propKey]; - if (nextProp === undefined) { - continue; - } - - var attributeConfig = validAttributes[propKey]; - if (!attributeConfig) { - continue; // not a valid native prop - } - - if (typeof nextProp === "function") { - nextProp = true; - } - if (typeof nextProp === "undefined") { - nextProp = null; - } - - if (typeof attributeConfig !== "object") { - // case: !Object is the default case - updatePayload[propKey] = nextProp; - } else if ( - typeof attributeConfig.diff === "function" || - typeof attributeConfig.process === "function" - ) { - // case: CustomAttributeConfiguration - var nextValue = - typeof attributeConfig.process === "function" - ? attributeConfig.process(nextProp) - : nextProp; - updatePayload[propKey] = nextValue; - } - removedKeys[propKey] = false; - removedKeyCount--; - } - } -} - -function diffNestedArrayProperty( - updatePayload, - prevArray, - nextArray, - validAttributes -) { - var minLength = - prevArray.length < nextArray.length ? prevArray.length : nextArray.length; - var i; - for (i = 0; i < minLength; i++) { - // Diff any items in the array in the forward direction. Repeated keys - // will be overwritten by later values. - updatePayload = diffNestedProperty( - updatePayload, - prevArray[i], - nextArray[i], - validAttributes - ); - } - for (; i < prevArray.length; i++) { - // Clear out all remaining properties. - updatePayload = clearNestedProperty( - updatePayload, - prevArray[i], - validAttributes - ); - } - for (; i < nextArray.length; i++) { - // Add all remaining properties. - updatePayload = addNestedProperty( - updatePayload, - nextArray[i], - validAttributes - ); - } - return updatePayload; -} - -function diffNestedProperty( - updatePayload, - prevProp, - nextProp, - validAttributes -) { - if (!updatePayload && prevProp === nextProp) { - // If no properties have been added, then we can bail out quickly on object - // equality. - return updatePayload; - } - - if (!prevProp || !nextProp) { - if (nextProp) { - return addNestedProperty(updatePayload, nextProp, validAttributes); - } - if (prevProp) { - return clearNestedProperty(updatePayload, prevProp, validAttributes); - } - return updatePayload; - } - - if (!Array.isArray(prevProp) && !Array.isArray(nextProp)) { - // Both are leaves, we can diff the leaves. - return diffProperties( - updatePayload, - resolveObject(prevProp), - resolveObject(nextProp), - validAttributes - ); - } - - if (Array.isArray(prevProp) && Array.isArray(nextProp)) { - // Both are arrays, we can diff the arrays. - return diffNestedArrayProperty( - updatePayload, - prevProp, - nextProp, - validAttributes - ); - } - - if (Array.isArray(prevProp)) { - return diffProperties( - updatePayload, - // $FlowFixMe - We know that this is always an object when the input is. - flattenStyle(prevProp), - // $FlowFixMe - We know that this isn't an array because of above flow. - resolveObject(nextProp), - validAttributes - ); - } - - return diffProperties( - updatePayload, - resolveObject(prevProp), - // $FlowFixMe - We know that this is always an object when the input is. - flattenStyle(nextProp), - validAttributes - ); -} - -/** - * addNestedProperty takes a single set of props and valid attribute - * attribute configurations. It processes each prop and adds it to the - * updatePayload. - */ -function addNestedProperty(updatePayload, nextProp, validAttributes) { - if (!nextProp) { - return updatePayload; - } - - if (!Array.isArray(nextProp)) { - // Add each property of the leaf. - return addProperties( - updatePayload, - resolveObject(nextProp), - validAttributes - ); - } - - for (var i = 0; i < nextProp.length; i++) { - // Add all the properties of the array. - updatePayload = addNestedProperty( - updatePayload, - nextProp[i], - validAttributes - ); - } - - return updatePayload; -} - -/** - * clearNestedProperty takes a single set of props and valid attributes. It - * adds a null sentinel to the updatePayload, for each prop key. - */ -function clearNestedProperty(updatePayload, prevProp, validAttributes) { - if (!prevProp) { - return updatePayload; - } - - if (!Array.isArray(prevProp)) { - // Add each property of the leaf. - return clearProperties( - updatePayload, - resolveObject(prevProp), - validAttributes - ); - } - - for (var i = 0; i < prevProp.length; i++) { - // Add all the properties of the array. - updatePayload = clearNestedProperty( - updatePayload, - prevProp[i], - validAttributes - ); - } - return updatePayload; -} - -/** - * diffProperties takes two sets of props and a set of valid attributes - * and write to updatePayload the values that changed or were deleted. - * If no updatePayload is provided, a new one is created and returned if - * anything changed. - */ -function diffProperties(updatePayload, prevProps, nextProps, validAttributes) { - var attributeConfig; - var nextProp; - var prevProp; - - for (var propKey in nextProps) { - attributeConfig = validAttributes[propKey]; - if (!attributeConfig) { - continue; // not a valid native prop - } - - prevProp = prevProps[propKey]; - nextProp = nextProps[propKey]; - - // functions are converted to booleans as markers that the associated - // events should be sent from native. - if (typeof nextProp === "function") { - nextProp = true; - // If nextProp is not a function, then don't bother changing prevProp - // since nextProp will win and go into the updatePayload regardless. - if (typeof prevProp === "function") { - prevProp = true; - } - } - - // An explicit value of undefined is treated as a null because it overrides - // any other preceding value. - if (typeof nextProp === "undefined") { - nextProp = null; - if (typeof prevProp === "undefined") { - prevProp = null; - } - } - - if (removedKeys) { - removedKeys[propKey] = false; - } - - if (updatePayload && updatePayload[propKey] !== undefined) { - // Something else already triggered an update to this key because another - // value diffed. Since we're now later in the nested arrays our value is - // more important so we need to calculate it and override the existing - // value. It doesn't matter if nothing changed, we'll set it anyway. - - // Pattern match on: attributeConfig - if (typeof attributeConfig !== "object") { - // case: !Object is the default case - updatePayload[propKey] = nextProp; - } else if ( - typeof attributeConfig.diff === "function" || - typeof attributeConfig.process === "function" - ) { - // case: CustomAttributeConfiguration - var nextValue = - typeof attributeConfig.process === "function" - ? attributeConfig.process(nextProp) - : nextProp; - updatePayload[propKey] = nextValue; - } - continue; - } - - if (prevProp === nextProp) { - continue; // nothing changed - } - - // Pattern match on: attributeConfig - if (typeof attributeConfig !== "object") { - // case: !Object is the default case - if (defaultDiffer(prevProp, nextProp)) { - // a normal leaf has changed - (updatePayload || (updatePayload = {}))[propKey] = nextProp; - } - } else if ( - typeof attributeConfig.diff === "function" || - typeof attributeConfig.process === "function" - ) { - // case: CustomAttributeConfiguration - var shouldUpdate = - prevProp === undefined || - (typeof attributeConfig.diff === "function" - ? attributeConfig.diff(prevProp, nextProp) - : defaultDiffer(prevProp, nextProp)); - if (shouldUpdate) { - nextValue = - typeof attributeConfig.process === "function" - ? attributeConfig.process(nextProp) - : nextProp; - (updatePayload || (updatePayload = {}))[propKey] = nextValue; - } - } else { - // default: fallthrough case when nested properties are defined - removedKeys = null; - removedKeyCount = 0; - // We think that attributeConfig is not CustomAttributeConfiguration at - // this point so we assume it must be AttributeConfiguration. - updatePayload = diffNestedProperty( - updatePayload, - prevProp, - nextProp, - attributeConfig - ); - if (removedKeyCount > 0 && updatePayload) { - restoreDeletedValuesInNestedArray( - updatePayload, - nextProp, - attributeConfig - ); - removedKeys = null; - } - } - } - - // Also iterate through all the previous props to catch any that have been - // removed and make sure native gets the signal so it can reset them to the - // default. - for (propKey in prevProps) { - if (nextProps[propKey] !== undefined) { - continue; // we've already covered this key in the previous pass - } - attributeConfig = validAttributes[propKey]; - if (!attributeConfig) { - continue; // not a valid native prop - } - - if (updatePayload && updatePayload[propKey] !== undefined) { - // This was already updated to a diff result earlier. - continue; - } - - prevProp = prevProps[propKey]; - if (prevProp === undefined) { - continue; // was already empty anyway - } - // Pattern match on: attributeConfig - if ( - typeof attributeConfig !== "object" || - typeof attributeConfig.diff === "function" || - typeof attributeConfig.process === "function" - ) { - // case: CustomAttributeConfiguration | !Object - // Flag the leaf property for removal by sending a sentinel. - (updatePayload || (updatePayload = {}))[propKey] = null; - if (!removedKeys) { - removedKeys = {}; - } - if (!removedKeys[propKey]) { - removedKeys[propKey] = true; - removedKeyCount++; - } - } else { - // default: - // This is a nested attribute configuration where all the properties - // were removed so we need to go through and clear out all of them. - updatePayload = clearNestedProperty( - updatePayload, - prevProp, - attributeConfig - ); - } - } - return updatePayload; -} - -/** - * addProperties adds all the valid props to the payload after being processed. - */ -function addProperties(updatePayload, props, validAttributes) { - // TODO: Fast path - return diffProperties(updatePayload, emptyObject$1, props, validAttributes); -} - -/** - * clearProperties clears all the previous props by adding a null sentinel - * to the payload for each valid key. - */ -function clearProperties(updatePayload, prevProps, validAttributes) { - // TODO: Fast path - return diffProperties( - updatePayload, - prevProps, - emptyObject$1, - validAttributes - ); -} - -function create(props, validAttributes) { - return addProperties( - null, // updatePayload - props, - validAttributes - ); -} - -function diff(prevProps, nextProps, validAttributes) { - return diffProperties( - null, // updatePayload - prevProps, - nextProps, - validAttributes - ); -} - -/** - * In the future, we should cleanup callbacks by cancelling them instead of - * using this. - */ -function mountSafeCallback(context, callback) { - return function() { - if (!callback) { - return undefined; - } - if (typeof context.__isMounted === "boolean") { - // TODO(gaearon): this is gross and should be removed. - // It is currently necessary because View uses createClass, - // and so any measure() calls on View (which are done by React - // DevTools) trigger the isMounted() deprecation warning. - if (!context.__isMounted) { - return undefined; - } - // The else branch is important so that we don't - // trigger the deprecation warning by calling isMounted. - } else if (typeof context.isMounted === "function") { - if (!context.isMounted()) { - return undefined; - } - } - return callback.apply(context, arguments); - }; -} - -function throwOnStylesProp(component, props) { - if (props.styles !== undefined) { - var owner = component._owner || null; - var name = component.constructor.displayName; - var msg = - "`styles` is not a supported property of `" + - name + - "`, did " + - "you mean `style` (singular)?"; - if (owner && owner.constructor && owner.constructor.displayName) { - msg += - "\n\nCheck the `" + - owner.constructor.displayName + - "` parent " + - " component."; - } - throw new Error(msg); - } -} - -function warnForStyleProps(props, validAttributes) { - for (var key in validAttributes.style) { - if (!(validAttributes[key] || props[key] === undefined)) { - console.error( - "You are setting the style `{ " + - key + - ": ... }` as a prop. You " + - "should nest it in a style object. " + - "E.g. `{ style: { " + - key + - ": ... } }`" - ); - } - } -} - -/** - * `ReactInstanceMap` maintains a mapping from a public facing stateful - * instance (key) and the internal representation (value). This allows public - * methods to accept the user facing instance as an argument and map them back - * to internal methods. - * - * Note that this module is currently shared and assumed to be stateless. - * If this becomes an actual Map, that will break. - */ - -/** - * This API should be called `delete` but we'd have to make sure to always - * transform these to strings for IE support. When this transform is fully - * supported we can rename it. - */ - -function get(key) { - return key._reactInternalFiber; -} - -function set(key, value) { - key._reactInternalFiber = value; -} - -function getComponentName(fiber) { - var type = fiber.type; - - if (typeof type === "string") { - return type; - } - if (typeof type === "function") { - return type.displayName || type.name; - } - return null; -} - -// Re-export dynamic flags from the fbsource version. -var _require = require("ReactFeatureFlags"); - -var debugRenderPhaseSideEffects = _require.debugRenderPhaseSideEffects; - -var enableAsyncSubtreeAPI = true; - -var enableUserTimingAPI = true; -var enableMutatingReconciler = true; -var enableNoopReconciler = false; -var enablePersistentReconciler = false; - -// Only used in www builds. - -// Don't change these two values: -var NoEffect = 0; // 0b00000000 -var PerformedWork = 1; // 0b00000001 - -// You can change the rest (and add more). -var Placement = 2; // 0b00000010 -var Update = 4; // 0b00000100 -var PlacementAndUpdate = 6; // 0b00000110 -var Deletion = 8; // 0b00001000 -var ContentReset = 16; // 0b00010000 -var Callback = 32; // 0b00100000 -var Err = 64; // 0b01000000 -var Ref = 128; // 0b10000000 - -var MOUNTING = 1; -var MOUNTED = 2; -var UNMOUNTED = 3; - -function isFiberMountedImpl(fiber) { - var node = fiber; - if (!fiber.alternate) { - // If there is no alternate, this might be a new tree that isn't inserted - // yet. If it is, then it will have a pending insertion effect on it. - if ((node.effectTag & Placement) !== NoEffect) { - return MOUNTING; - } - while (node["return"]) { - node = node["return"]; - if ((node.effectTag & Placement) !== NoEffect) { - return MOUNTING; - } - } - } else { - while (node["return"]) { - node = node["return"]; - } - } - if (node.tag === HostRoot) { - // TODO: Check if this was a nested HostRoot when used with - // renderContainerIntoSubtree. - return MOUNTED; - } - // If we didn't hit the root, that means that we're in an disconnected tree - // that has been unmounted. - return UNMOUNTED; -} - -function isFiberMounted(fiber) { - return isFiberMountedImpl(fiber) === MOUNTED; -} - -function isMounted(component) { - { - var owner = ReactCurrentOwner.current; - if (owner !== null && owner.tag === ClassComponent) { - var ownerFiber = owner; - var instance = ownerFiber.stateNode; - warning( - instance._warnedAboutRefsInRender, - "%s is accessing isMounted inside its render() function. " + - "render() should be a pure function of props and state. It should " + - "never access something that requires stale data from the previous " + - "render, such as refs. Move this logic to componentDidMount and " + - "componentDidUpdate instead.", - getComponentName(ownerFiber) || "A component" - ); - instance._warnedAboutRefsInRender = true; - } - } - - var fiber = get(component); - if (!fiber) { - return false; - } - return isFiberMountedImpl(fiber) === MOUNTED; -} - -function assertIsMounted(fiber) { - invariant( - isFiberMountedImpl(fiber) === MOUNTED, - "Unable to find node on an unmounted component." - ); -} - -function findCurrentFiberUsingSlowPath(fiber) { - var alternate = fiber.alternate; - if (!alternate) { - // If there is no alternate, then we only need to check if it is mounted. - var state = isFiberMountedImpl(fiber); - invariant( - state !== UNMOUNTED, - "Unable to find node on an unmounted component." - ); - if (state === MOUNTING) { - return null; - } - return fiber; - } - // If we have two possible branches, we'll walk backwards up to the root - // to see what path the root points to. On the way we may hit one of the - // special cases and we'll deal with them. - var a = fiber; - var b = alternate; - while (true) { - var parentA = a["return"]; - var parentB = parentA ? parentA.alternate : null; - if (!parentA || !parentB) { - // We're at the root. - break; - } - - // If both copies of the parent fiber point to the same child, we can - // assume that the child is current. This happens when we bailout on low - // priority: the bailed out fiber's child reuses the current child. - if (parentA.child === parentB.child) { - var child = parentA.child; - while (child) { - if (child === a) { - // We've determined that A is the current branch. - assertIsMounted(parentA); - return fiber; - } - if (child === b) { - // We've determined that B is the current branch. - assertIsMounted(parentA); - return alternate; - } - child = child.sibling; - } - // We should never have an alternate for any mounting node. So the only - // way this could possibly happen is if this was unmounted, if at all. - invariant(false, "Unable to find node on an unmounted component."); - } - - if (a["return"] !== b["return"]) { - // The return pointer of A and the return pointer of B point to different - // fibers. We assume that return pointers never criss-cross, so A must - // belong to the child set of A.return, and B must belong to the child - // set of B.return. - a = parentA; - b = parentB; - } else { - // The return pointers point to the same fiber. We'll have to use the - // default, slow path: scan the child sets of each parent alternate to see - // which child belongs to which set. - // - // Search parent A's child set - var didFindChild = false; - var _child = parentA.child; - while (_child) { - if (_child === a) { - didFindChild = true; - a = parentA; - b = parentB; - break; - } - if (_child === b) { - didFindChild = true; - b = parentA; - a = parentB; - break; - } - _child = _child.sibling; - } - if (!didFindChild) { - // Search parent B's child set - _child = parentB.child; - while (_child) { - if (_child === a) { - didFindChild = true; - a = parentB; - b = parentA; - break; - } - if (_child === b) { - didFindChild = true; - b = parentB; - a = parentA; - break; - } - _child = _child.sibling; - } - invariant( - didFindChild, - "Child was not found in either parent set. This indicates a bug " + - "in React related to the return pointer. Please file an issue." - ); - } - } - - invariant( - a.alternate === b, - "Return fibers should always be each others' alternates. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } - // If the root is not a host container, we're in a disconnected tree. I.e. - // unmounted. - invariant( - a.tag === HostRoot, - "Unable to find node on an unmounted component." - ); - if (a.stateNode.current === a) { - // We've determined that A is the current branch. - return fiber; - } - // Otherwise B has to be current branch. - return alternate; -} - -function findCurrentHostFiber(parent) { - var currentParent = findCurrentFiberUsingSlowPath(parent); - if (!currentParent) { - return null; - } - - // Next we'll drill down this component to find the first HostComponent/Text. - var node = currentParent; - while (true) { - if (node.tag === HostComponent || node.tag === HostText) { - return node; - } else if (node.child) { - node.child["return"] = node; - node = node.child; - continue; - } - if (node === currentParent) { - return null; - } - while (!node.sibling) { - if (!node["return"] || node["return"] === currentParent) { - return null; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - // Flow needs the return null here, but ESLint complains about it. - // eslint-disable-next-line no-unreachable - return null; -} - -function findCurrentHostFiberWithNoPortals(parent) { - var currentParent = findCurrentFiberUsingSlowPath(parent); - if (!currentParent) { - return null; - } - - // Next we'll drill down this component to find the first HostComponent/Text. - var node = currentParent; - while (true) { - if (node.tag === HostComponent || node.tag === HostText) { - return node; - } else if (node.child && node.tag !== HostPortal) { - node.child["return"] = node; - node = node.child; - continue; - } - if (node === currentParent) { - return null; - } - while (!node.sibling) { - if (!node["return"] || node["return"] === currentParent) { - return null; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - // Flow needs the return null here, but ESLint complains about it. - // eslint-disable-next-line no-unreachable - return null; -} - -var valueStack = []; - -{ - var fiberStack = []; -} - -var index = -1; - -function createCursor(defaultValue) { - return { - current: defaultValue - }; -} - -function pop(cursor, fiber) { - if (index < 0) { - { - warning(false, "Unexpected pop."); - } - return; - } - - { - if (fiber !== fiberStack[index]) { - warning(false, "Unexpected Fiber popped."); - } - } - - cursor.current = valueStack[index]; - - valueStack[index] = null; - - { - fiberStack[index] = null; - } - - index--; -} - -function push(cursor, value, fiber) { - index++; - - valueStack[index] = cursor.current; - - { - fiberStack[index] = fiber; - } - - cursor.current = value; -} - -function reset() { - while (index > -1) { - valueStack[index] = null; - - { - fiberStack[index] = null; - } - - index--; - } -} - -var describeComponentFrame = function(name, source, ownerName) { - return ( - "\n in " + - (name || "Unknown") + - (source - ? " (at " + - source.fileName.replace(/^.*[\\\/]/, "") + - ":" + - source.lineNumber + - ")" - : ownerName ? " (created by " + ownerName + ")" : "") - ); -}; - -function describeFiber(fiber) { - switch (fiber.tag) { - case IndeterminateComponent: - case FunctionalComponent: - case ClassComponent: - case HostComponent: - var owner = fiber._debugOwner; - var source = fiber._debugSource; - var name = getComponentName(fiber); - var ownerName = null; - if (owner) { - ownerName = getComponentName(owner); - } - return describeComponentFrame(name, source, ownerName); - default: - return ""; - } -} - -// This function can only be called with a work-in-progress fiber and -// only during begin or complete phase. Do not call it under any other -// circumstances. -function getStackAddendumByWorkInProgressFiber(workInProgress) { - var info = ""; - var node = workInProgress; - do { - info += describeFiber(node); - // Otherwise this return pointer might point to the wrong tree: - node = node["return"]; - } while (node); - return info; -} - -function getCurrentFiberOwnerName() { - { - var fiber = ReactDebugCurrentFiber.current; - if (fiber === null) { - return null; - } - var owner = fiber._debugOwner; - if (owner !== null && typeof owner !== "undefined") { - return getComponentName(owner); - } - } - return null; -} - -function getCurrentFiberStackAddendum() { - { - var fiber = ReactDebugCurrentFiber.current; - if (fiber === null) { - return null; - } - // Safe because if current fiber exists, we are reconciling, - // and it is guaranteed to be the work-in-progress version. - return getStackAddendumByWorkInProgressFiber(fiber); - } - return null; -} - -function resetCurrentFiber() { - ReactDebugCurrentFrame.getCurrentStack = null; - ReactDebugCurrentFiber.current = null; - ReactDebugCurrentFiber.phase = null; -} - -function setCurrentFiber(fiber) { - ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackAddendum; - ReactDebugCurrentFiber.current = fiber; - ReactDebugCurrentFiber.phase = null; -} - -function setCurrentPhase(phase) { - ReactDebugCurrentFiber.phase = phase; -} - -var ReactDebugCurrentFiber = { - current: null, - phase: null, - resetCurrentFiber: resetCurrentFiber, - setCurrentFiber: setCurrentFiber, - setCurrentPhase: setCurrentPhase, - getCurrentFiberOwnerName: getCurrentFiberOwnerName, - getCurrentFiberStackAddendum: getCurrentFiberStackAddendum -}; - -// Prefix measurements so that it's possible to filter them. -// Longer prefixes are hard to read in DevTools. -var reactEmoji = "\u269B"; -var warningEmoji = "\u26D4"; -var supportsUserTiming = - typeof performance !== "undefined" && - typeof performance.mark === "function" && - typeof performance.clearMarks === "function" && - typeof performance.measure === "function" && - typeof performance.clearMeasures === "function"; - -// Keep track of current fiber so that we know the path to unwind on pause. -// TODO: this looks the same as nextUnitOfWork in scheduler. Can we unify them? -var currentFiber = null; -// If we're in the middle of user code, which fiber and method is it? -// Reusing `currentFiber` would be confusing for this because user code fiber -// can change during commit phase too, but we don't need to unwind it (since -// lifecycles in the commit phase don't resemble a tree). -var currentPhase = null; -var currentPhaseFiber = null; -// Did lifecycle hook schedule an update? This is often a performance problem, -// so we will keep track of it, and include it in the report. -// Track commits caused by cascading updates. -var isCommitting = false; -var hasScheduledUpdateInCurrentCommit = false; -var hasScheduledUpdateInCurrentPhase = false; -var commitCountInCurrentWorkLoop = 0; -var effectCountInCurrentCommit = 0; -var isWaitingForCallback = false; -// During commits, we only show a measurement once per method name -// to avoid stretch the commit phase with measurement overhead. -var labelsInCurrentCommit = new Set(); - -var formatMarkName = function(markName) { - return reactEmoji + " " + markName; -}; - -var formatLabel = function(label, warning$$1) { - var prefix = warning$$1 ? warningEmoji + " " : reactEmoji + " "; - var suffix = warning$$1 ? " Warning: " + warning$$1 : ""; - return "" + prefix + label + suffix; -}; - -var beginMark = function(markName) { - performance.mark(formatMarkName(markName)); -}; - -var clearMark = function(markName) { - performance.clearMarks(formatMarkName(markName)); -}; - -var endMark = function(label, markName, warning$$1) { - var formattedMarkName = formatMarkName(markName); - var formattedLabel = formatLabel(label, warning$$1); - try { - performance.measure(formattedLabel, formattedMarkName); - } catch (err) {} - // If previous mark was missing for some reason, this will throw. - // This could only happen if React crashed in an unexpected place earlier. - // Don't pile on with more errors. - - // Clear marks immediately to avoid growing buffer. - performance.clearMarks(formattedMarkName); - performance.clearMeasures(formattedLabel); -}; - -var getFiberMarkName = function(label, debugID) { - return label + " (#" + debugID + ")"; -}; - -var getFiberLabel = function(componentName, isMounted, phase) { - if (phase === null) { - // These are composite component total time measurements. - return componentName + " [" + (isMounted ? "update" : "mount") + "]"; - } else { - // Composite component methods. - return componentName + "." + phase; - } -}; - -var beginFiberMark = function(fiber, phase) { - var componentName = getComponentName(fiber) || "Unknown"; - var debugID = fiber._debugID; - var isMounted = fiber.alternate !== null; - var label = getFiberLabel(componentName, isMounted, phase); - - if (isCommitting && labelsInCurrentCommit.has(label)) { - // During the commit phase, we don't show duplicate labels because - // there is a fixed overhead for every measurement, and we don't - // want to stretch the commit phase beyond necessary. - return false; - } - labelsInCurrentCommit.add(label); - - var markName = getFiberMarkName(label, debugID); - beginMark(markName); - return true; -}; - -var clearFiberMark = function(fiber, phase) { - var componentName = getComponentName(fiber) || "Unknown"; - var debugID = fiber._debugID; - var isMounted = fiber.alternate !== null; - var label = getFiberLabel(componentName, isMounted, phase); - var markName = getFiberMarkName(label, debugID); - clearMark(markName); -}; - -var endFiberMark = function(fiber, phase, warning$$1) { - var componentName = getComponentName(fiber) || "Unknown"; - var debugID = fiber._debugID; - var isMounted = fiber.alternate !== null; - var label = getFiberLabel(componentName, isMounted, phase); - var markName = getFiberMarkName(label, debugID); - endMark(label, markName, warning$$1); -}; - -var shouldIgnoreFiber = function(fiber) { - // Host components should be skipped in the timeline. - // We could check typeof fiber.type, but does this work with RN? - switch (fiber.tag) { - case HostRoot: - case HostComponent: - case HostText: - case HostPortal: - case ReturnComponent: - case Fragment: - return true; - default: - return false; - } -}; - -var clearPendingPhaseMeasurement = function() { - if (currentPhase !== null && currentPhaseFiber !== null) { - clearFiberMark(currentPhaseFiber, currentPhase); - } - currentPhaseFiber = null; - currentPhase = null; - hasScheduledUpdateInCurrentPhase = false; -}; - -var pauseTimers = function() { - // Stops all currently active measurements so that they can be resumed - // if we continue in a later deferred loop from the same unit of work. - var fiber = currentFiber; - while (fiber) { - if (fiber._debugIsCurrentlyTiming) { - endFiberMark(fiber, null, null); - } - fiber = fiber["return"]; - } -}; - -var resumeTimersRecursively = function(fiber) { - if (fiber["return"] !== null) { - resumeTimersRecursively(fiber["return"]); - } - if (fiber._debugIsCurrentlyTiming) { - beginFiberMark(fiber, null); - } -}; - -var resumeTimers = function() { - // Resumes all measurements that were active during the last deferred loop. - if (currentFiber !== null) { - resumeTimersRecursively(currentFiber); - } -}; - -function recordEffect() { - if (enableUserTimingAPI) { - effectCountInCurrentCommit++; - } -} - -function recordScheduleUpdate() { - if (enableUserTimingAPI) { - if (isCommitting) { - hasScheduledUpdateInCurrentCommit = true; - } - if ( - currentPhase !== null && - currentPhase !== "componentWillMount" && - currentPhase !== "componentWillReceiveProps" - ) { - hasScheduledUpdateInCurrentPhase = true; - } - } -} - -function startRequestCallbackTimer() { - if (enableUserTimingAPI) { - if (supportsUserTiming && !isWaitingForCallback) { - isWaitingForCallback = true; - beginMark("(Waiting for async callback...)"); - } - } -} - -function stopRequestCallbackTimer(didExpire) { - if (enableUserTimingAPI) { - if (supportsUserTiming) { - isWaitingForCallback = false; - var warning$$1 = didExpire ? "React was blocked by main thread" : null; - endMark( - "(Waiting for async callback...)", - "(Waiting for async callback...)", - warning$$1 - ); - } - } -} - -function startWorkTimer(fiber) { - if (enableUserTimingAPI) { - if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { - return; - } - // If we pause, this is the fiber to unwind from. - currentFiber = fiber; - if (!beginFiberMark(fiber, null)) { - return; - } - fiber._debugIsCurrentlyTiming = true; - } -} - -function cancelWorkTimer(fiber) { - if (enableUserTimingAPI) { - if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { - return; - } - // Remember we shouldn't complete measurement for this fiber. - // Otherwise flamechart will be deep even for small updates. - fiber._debugIsCurrentlyTiming = false; - clearFiberMark(fiber, null); - } -} - -function stopWorkTimer(fiber) { - if (enableUserTimingAPI) { - if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { - return; - } - // If we pause, its parent is the fiber to unwind from. - currentFiber = fiber["return"]; - if (!fiber._debugIsCurrentlyTiming) { - return; - } - fiber._debugIsCurrentlyTiming = false; - endFiberMark(fiber, null, null); - } -} - -function stopFailedWorkTimer(fiber) { - if (enableUserTimingAPI) { - if (!supportsUserTiming || shouldIgnoreFiber(fiber)) { - return; - } - // If we pause, its parent is the fiber to unwind from. - currentFiber = fiber["return"]; - if (!fiber._debugIsCurrentlyTiming) { - return; - } - fiber._debugIsCurrentlyTiming = false; - var warning$$1 = "An error was thrown inside this error boundary"; - endFiberMark(fiber, null, warning$$1); - } -} - -function startPhaseTimer(fiber, phase) { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - clearPendingPhaseMeasurement(); - if (!beginFiberMark(fiber, phase)) { - return; - } - currentPhaseFiber = fiber; - currentPhase = phase; - } -} - -function stopPhaseTimer() { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - if (currentPhase !== null && currentPhaseFiber !== null) { - var warning$$1 = hasScheduledUpdateInCurrentPhase - ? "Scheduled a cascading update" - : null; - endFiberMark(currentPhaseFiber, currentPhase, warning$$1); - } - currentPhase = null; - currentPhaseFiber = null; - } -} - -function startWorkLoopTimer(nextUnitOfWork) { - if (enableUserTimingAPI) { - currentFiber = nextUnitOfWork; - if (!supportsUserTiming) { - return; - } - commitCountInCurrentWorkLoop = 0; - // This is top level call. - // Any other measurements are performed within. - beginMark("(React Tree Reconciliation)"); - // Resume any measurements that were in progress during the last loop. - resumeTimers(); - } -} - -function stopWorkLoopTimer(interruptedBy) { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - var warning$$1 = null; - if (interruptedBy !== null) { - if (interruptedBy.tag === HostRoot) { - warning$$1 = "A top-level update interrupted the previous render"; - } else { - var componentName = getComponentName(interruptedBy) || "Unknown"; - warning$$1 = - "An update to " + componentName + " interrupted the previous render"; - } - } else if (commitCountInCurrentWorkLoop > 1) { - warning$$1 = "There were cascading updates"; - } - commitCountInCurrentWorkLoop = 0; - // Pause any measurements until the next loop. - pauseTimers(); - endMark( - "(React Tree Reconciliation)", - "(React Tree Reconciliation)", - warning$$1 - ); - } -} - -function startCommitTimer() { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - isCommitting = true; - hasScheduledUpdateInCurrentCommit = false; - labelsInCurrentCommit.clear(); - beginMark("(Committing Changes)"); - } -} - -function stopCommitTimer() { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - - var warning$$1 = null; - if (hasScheduledUpdateInCurrentCommit) { - warning$$1 = "Lifecycle hook scheduled a cascading update"; - } else if (commitCountInCurrentWorkLoop > 0) { - warning$$1 = "Caused by a cascading update in earlier commit"; - } - hasScheduledUpdateInCurrentCommit = false; - commitCountInCurrentWorkLoop++; - isCommitting = false; - labelsInCurrentCommit.clear(); - - endMark("(Committing Changes)", "(Committing Changes)", warning$$1); - } -} - -function startCommitHostEffectsTimer() { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - effectCountInCurrentCommit = 0; - beginMark("(Committing Host Effects)"); - } -} - -function stopCommitHostEffectsTimer() { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - var count = effectCountInCurrentCommit; - effectCountInCurrentCommit = 0; - endMark( - "(Committing Host Effects: " + count + " Total)", - "(Committing Host Effects)", - null - ); - } -} - -function startCommitLifeCyclesTimer() { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - effectCountInCurrentCommit = 0; - beginMark("(Calling Lifecycle Methods)"); - } -} - -function stopCommitLifeCyclesTimer() { - if (enableUserTimingAPI) { - if (!supportsUserTiming) { - return; - } - var count = effectCountInCurrentCommit; - effectCountInCurrentCommit = 0; - endMark( - "(Calling Lifecycle Methods: " + count + " Total)", - "(Calling Lifecycle Methods)", - null - ); - } -} - -{ - var warnedAboutMissingGetChildContext = {}; -} - -// A cursor to the current merged context object on the stack. -var contextStackCursor = createCursor(emptyObject); -// A cursor to a boolean indicating whether the context has changed. -var didPerformWorkStackCursor = createCursor(false); -// Keep track of the previous context object that was on the stack. -// We use this to get access to the parent context after we have already -// pushed the next context provider, and now need to merge their contexts. -var previousContext = emptyObject; - -function getUnmaskedContext(workInProgress) { - var hasOwnContext = isContextProvider(workInProgress); - if (hasOwnContext) { - // If the fiber is a context provider itself, when we read its context - // we have already pushed its own child context on the stack. A context - // provider should not "see" its own child context. Therefore we read the - // previous (parent) context instead for a context provider. - return previousContext; - } - return contextStackCursor.current; -} - -function cacheContext(workInProgress, unmaskedContext, maskedContext) { - var instance = workInProgress.stateNode; - instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext; - instance.__reactInternalMemoizedMaskedChildContext = maskedContext; -} - -function getMaskedContext(workInProgress, unmaskedContext) { - var type = workInProgress.type; - var contextTypes = type.contextTypes; - if (!contextTypes) { - return emptyObject; - } - - // Avoid recreating masked context unless unmasked context has changed. - // Failing to do this will result in unnecessary calls to componentWillReceiveProps. - // This may trigger infinite loops if componentWillReceiveProps calls setState. - var instance = workInProgress.stateNode; - if ( - instance && - instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext - ) { - return instance.__reactInternalMemoizedMaskedChildContext; - } - - var context = {}; - for (var key in contextTypes) { - context[key] = unmaskedContext[key]; - } - - { - var name = getComponentName(workInProgress) || "Unknown"; - checkPropTypes( - contextTypes, - context, - "context", - name, - ReactDebugCurrentFiber.getCurrentFiberStackAddendum - ); - } - - // Cache unmasked context so we can avoid recreating masked context unless necessary. - // Context is created before the class component is instantiated so check for instance. - if (instance) { - cacheContext(workInProgress, unmaskedContext, context); - } - - return context; -} - -function hasContextChanged() { - return didPerformWorkStackCursor.current; -} - -function isContextConsumer(fiber) { - return fiber.tag === ClassComponent && fiber.type.contextTypes != null; -} - -function isContextProvider(fiber) { - return fiber.tag === ClassComponent && fiber.type.childContextTypes != null; -} - -function popContextProvider(fiber) { - if (!isContextProvider(fiber)) { - return; - } - - pop(didPerformWorkStackCursor, fiber); - pop(contextStackCursor, fiber); -} - -function popTopLevelContextObject(fiber) { - pop(didPerformWorkStackCursor, fiber); - pop(contextStackCursor, fiber); -} - -function pushTopLevelContextObject(fiber, context, didChange) { - invariant( - contextStackCursor.cursor == null, - "Unexpected context found on stack. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - - push(contextStackCursor, context, fiber); - push(didPerformWorkStackCursor, didChange, fiber); -} - -function processChildContext(fiber, parentContext) { - var instance = fiber.stateNode; - var childContextTypes = fiber.type.childContextTypes; - - // TODO (bvaughn) Replace this behavior with an invariant() in the future. - // It has only been added in Fiber to match the (unintentional) behavior in Stack. - if (typeof instance.getChildContext !== "function") { - { - var componentName = getComponentName(fiber) || "Unknown"; - - if (!warnedAboutMissingGetChildContext[componentName]) { - warnedAboutMissingGetChildContext[componentName] = true; - warning( - false, - "%s.childContextTypes is specified but there is no getChildContext() method " + - "on the instance. You can either define getChildContext() on %s or remove " + - "childContextTypes from it.", - componentName, - componentName - ); - } - } - return parentContext; - } - - var childContext = void 0; - { - ReactDebugCurrentFiber.setCurrentPhase("getChildContext"); - } - startPhaseTimer(fiber, "getChildContext"); - childContext = instance.getChildContext(); - stopPhaseTimer(); - { - ReactDebugCurrentFiber.setCurrentPhase(null); - } - for (var contextKey in childContext) { - invariant( - contextKey in childContextTypes, - '%s.getChildContext(): key "%s" is not defined in childContextTypes.', - getComponentName(fiber) || "Unknown", - contextKey - ); - } - { - var name = getComponentName(fiber) || "Unknown"; - checkPropTypes( - childContextTypes, - childContext, - "child context", - name, - // In practice, there is one case in which we won't get a stack. It's when - // somebody calls unstable_renderSubtreeIntoContainer() and we process - // context from the parent component instance. The stack will be missing - // because it's outside of the reconciliation, and so the pointer has not - // been set. This is rare and doesn't matter. We'll also remove that API. - ReactDebugCurrentFiber.getCurrentFiberStackAddendum - ); - } - - return Object.assign({}, parentContext, childContext); -} - -function pushContextProvider(workInProgress) { - if (!isContextProvider(workInProgress)) { - return false; - } - - var instance = workInProgress.stateNode; - // We push the context as early as possible to ensure stack integrity. - // If the instance does not exist yet, we will push null at first, - // and replace it on the stack later when invalidating the context. - var memoizedMergedChildContext = - (instance && instance.__reactInternalMemoizedMergedChildContext) || - emptyObject; - - // Remember the parent context so we can merge with it later. - // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates. - previousContext = contextStackCursor.current; - push(contextStackCursor, memoizedMergedChildContext, workInProgress); - push( - didPerformWorkStackCursor, - didPerformWorkStackCursor.current, - workInProgress - ); - - return true; -} - -function invalidateContextProvider(workInProgress, didChange) { - var instance = workInProgress.stateNode; - invariant( - instance, - "Expected to have an instance by this point. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - - if (didChange) { - // Merge parent and own context. - // Skip this if we're not updating due to sCU. - // This avoids unnecessarily recomputing memoized values. - var mergedContext = processChildContext(workInProgress, previousContext); - instance.__reactInternalMemoizedMergedChildContext = mergedContext; - - // Replace the old (or empty) context with the new one. - // It is important to unwind the context in the reverse order. - pop(didPerformWorkStackCursor, workInProgress); - pop(contextStackCursor, workInProgress); - // Now push the new context and mark that it has changed. - push(contextStackCursor, mergedContext, workInProgress); - push(didPerformWorkStackCursor, didChange, workInProgress); - } else { - pop(didPerformWorkStackCursor, workInProgress); - push(didPerformWorkStackCursor, didChange, workInProgress); - } -} - -function resetContext() { - previousContext = emptyObject; - contextStackCursor.current = emptyObject; - didPerformWorkStackCursor.current = false; -} - -function findCurrentUnmaskedContext(fiber) { - // Currently this is only used with renderSubtreeIntoContainer; not sure if it - // makes sense elsewhere - invariant( - isFiberMounted(fiber) && fiber.tag === ClassComponent, - "Expected subtree parent to be a mounted class component. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - - var node = fiber; - while (node.tag !== HostRoot) { - if (isContextProvider(node)) { - return node.stateNode.__reactInternalMemoizedMergedChildContext; - } - var parent = node["return"]; - invariant( - parent, - "Found unexpected detached subtree parent. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - node = parent; - } - return node.stateNode.context; -} - -var NoWork = 0; // TODO: Use an opaque type once ESLint et al support the syntax - -var Sync = 1; -var Never = 2147483647; // Max int32: Math.pow(2, 31) - 1 - -var UNIT_SIZE = 10; -var MAGIC_NUMBER_OFFSET = 2; - -// 1 unit of expiration time represents 10ms. -function msToExpirationTime(ms) { - // Always add an offset so that we don't clash with the magic number for NoWork. - return ((ms / UNIT_SIZE) | 0) + MAGIC_NUMBER_OFFSET; -} - -function expirationTimeToMs(expirationTime) { - return (expirationTime - MAGIC_NUMBER_OFFSET) * UNIT_SIZE; -} - -function ceiling(num, precision) { - return (((num / precision) | 0) + 1) * precision; -} - -function computeExpirationBucket(currentTime, expirationInMs, bucketSizeMs) { - return ceiling( - currentTime + expirationInMs / UNIT_SIZE, - bucketSizeMs / UNIT_SIZE - ); -} - -var NoContext = 0; -var AsyncUpdates = 1; - -{ - var hasBadMapPolyfill = false; - try { - var nonExtensibleObject = Object.preventExtensions({}); - /* eslint-disable no-new */ - new Map([[nonExtensibleObject, null]]); - new Set([nonExtensibleObject]); - /* eslint-enable no-new */ - } catch (e) { - // TODO: Consider warning about bad polyfills - hasBadMapPolyfill = true; - } -} - -// A Fiber is work on a Component that needs to be done or was done. There can -// be more than one per component. - -{ - var debugCounter = 1; -} - -function FiberNode(tag, pendingProps, key, internalContextTag) { - // Instance - this.tag = tag; - this.key = key; - this.type = null; - this.stateNode = null; - - // Fiber - this["return"] = null; - this.child = null; - this.sibling = null; - this.index = 0; - - this.ref = null; - - this.pendingProps = pendingProps; - this.memoizedProps = null; - this.updateQueue = null; - this.memoizedState = null; - - this.internalContextTag = internalContextTag; - - // Effects - this.effectTag = NoEffect; - this.nextEffect = null; - - this.firstEffect = null; - this.lastEffect = null; - - this.expirationTime = NoWork; - - this.alternate = null; - - { - this._debugID = debugCounter++; - this._debugSource = null; - this._debugOwner = null; - this._debugIsCurrentlyTiming = false; - if (!hasBadMapPolyfill && typeof Object.preventExtensions === "function") { - Object.preventExtensions(this); - } - } -} - -// This is a constructor function, rather than a POJO constructor, still -// please ensure we do the following: -// 1) Nobody should add any instance methods on this. Instance methods can be -// more difficult to predict when they get optimized and they are almost -// never inlined properly in static compilers. -// 2) Nobody should rely on `instanceof Fiber` for type testing. We should -// always know when it is a fiber. -// 3) We might want to experiment with using numeric keys since they are easier -// to optimize in a non-JIT environment. -// 4) We can easily go from a constructor to a createFiber object literal if that -// is faster. -// 5) It should be easy to port this to a C struct and keep a C implementation -// compatible. -var createFiber = function(tag, pendingProps, key, internalContextTag) { - // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors - return new FiberNode(tag, pendingProps, key, internalContextTag); -}; - -function shouldConstruct(Component) { - return !!(Component.prototype && Component.prototype.isReactComponent); -} - -// This is used to create an alternate fiber to do work on. -function createWorkInProgress(current, pendingProps, expirationTime) { - var workInProgress = current.alternate; - if (workInProgress === null) { - // We use a double buffering pooling technique because we know that we'll - // only ever need at most two versions of a tree. We pool the "other" unused - // node that we're free to reuse. This is lazily created to avoid allocating - // extra objects for things that are never updated. It also allow us to - // reclaim the extra memory if needed. - workInProgress = createFiber( - current.tag, - pendingProps, - current.key, - current.internalContextTag - ); - workInProgress.type = current.type; - workInProgress.stateNode = current.stateNode; - - { - // DEV-only fields - workInProgress._debugID = current._debugID; - workInProgress._debugSource = current._debugSource; - workInProgress._debugOwner = current._debugOwner; - } - - workInProgress.alternate = current; - current.alternate = workInProgress; - } else { - workInProgress.pendingProps = pendingProps; - - // We already have an alternate. - // Reset the effect tag. - workInProgress.effectTag = NoEffect; - - // The effect list is no longer valid. - workInProgress.nextEffect = null; - workInProgress.firstEffect = null; - workInProgress.lastEffect = null; - } - - workInProgress.expirationTime = expirationTime; - - workInProgress.child = current.child; - workInProgress.memoizedProps = current.memoizedProps; - workInProgress.memoizedState = current.memoizedState; - workInProgress.updateQueue = current.updateQueue; - - // These will be overridden during the parent's reconciliation - workInProgress.sibling = current.sibling; - workInProgress.index = current.index; - workInProgress.ref = current.ref; - - return workInProgress; -} - -function createHostRootFiber() { - var fiber = createFiber(HostRoot, null, NoContext); - return fiber; -} - -function createFiberFromElement(element, internalContextTag, expirationTime) { - var owner = null; - { - owner = element._owner; - } - - var fiber = void 0; - var type = element.type; - var key = element.key; - var pendingProps = element.props; - if (typeof type === "function") { - fiber = shouldConstruct(type) - ? createFiber(ClassComponent, pendingProps, key, internalContextTag) - : createFiber( - IndeterminateComponent, - pendingProps, - key, - internalContextTag - ); - fiber.type = type; - } else if (typeof type === "string") { - fiber = createFiber(HostComponent, pendingProps, key, internalContextTag); - fiber.type = type; - } else if ( - typeof type === "object" && - type !== null && - typeof type.tag === "number" - ) { - // Currently assumed to be a continuation and therefore is a fiber already. - // TODO: The yield system is currently broken for updates in some cases. - // The reified yield stores a fiber, but we don't know which fiber that is; - // the current or a workInProgress? When the continuation gets rendered here - // we don't know if we can reuse that fiber or if we need to clone it. - // There is probably a clever way to restructure this. - fiber = type; - fiber.pendingProps = pendingProps; - } else { - var info = ""; - { - if ( - type === undefined || - (typeof type === "object" && - type !== null && - Object.keys(type).length === 0) - ) { - info += - " You likely forgot to export your component from the file " + - "it's defined in, or you might have mixed up default and named imports."; - } - var ownerName = owner ? getComponentName(owner) : null; - if (ownerName) { - info += "\n\nCheck the render method of `" + ownerName + "`."; - } - } - invariant( - false, - "Element type is invalid: expected a string (for built-in components) " + - "or a class/function (for composite components) but got: %s.%s", - type == null ? type : typeof type, - info - ); - } - - { - fiber._debugSource = element._source; - fiber._debugOwner = element._owner; - } - - fiber.expirationTime = expirationTime; - - return fiber; -} - -function createFiberFromFragment( - elements, - internalContextTag, - expirationTime, - key -) { - var fiber = createFiber(Fragment, elements, key, internalContextTag); - fiber.expirationTime = expirationTime; - return fiber; -} - -function createFiberFromText(content, internalContextTag, expirationTime) { - var fiber = createFiber(HostText, content, null, internalContextTag); - fiber.expirationTime = expirationTime; - return fiber; -} - -function createFiberFromHostInstanceForDeletion() { - var fiber = createFiber(HostComponent, null, null, NoContext); - fiber.type = "DELETED"; - return fiber; -} - -function createFiberFromCall(call, internalContextTag, expirationTime) { - var fiber = createFiber(CallComponent, call, call.key, internalContextTag); - fiber.type = call.handler; - fiber.expirationTime = expirationTime; - return fiber; -} - -function createFiberFromReturn(returnNode, internalContextTag, expirationTime) { - var fiber = createFiber(ReturnComponent, null, null, internalContextTag); - fiber.expirationTime = expirationTime; - return fiber; -} - -function createFiberFromPortal(portal, internalContextTag, expirationTime) { - var pendingProps = portal.children !== null ? portal.children : []; - var fiber = createFiber( - HostPortal, - pendingProps, - portal.key, - internalContextTag - ); - fiber.expirationTime = expirationTime; - fiber.stateNode = { - containerInfo: portal.containerInfo, - pendingChildren: null, // Used by persistent updates - implementation: portal.implementation - }; - return fiber; -} - -// TODO: This should be lifted into the renderer. - -function createFiberRoot(containerInfo, hydrate) { - // Cyclic construction. This cheats the type system right now because - // stateNode is any. - var uninitializedFiber = createHostRootFiber(); - var root = { - current: uninitializedFiber, - containerInfo: containerInfo, - pendingChildren: null, - remainingExpirationTime: NoWork, - isReadyForCommit: false, - finishedWork: null, - context: null, - pendingContext: null, - hydrate: hydrate, - firstBatch: null, - nextScheduledRoot: null - }; - uninitializedFiber.stateNode = root; - return root; -} - -var onCommitFiberRoot = null; -var onCommitFiberUnmount = null; -var hasLoggedError = false; - -function catchErrors(fn) { - return function(arg) { - try { - return fn(arg); - } catch (err) { - if (true && !hasLoggedError) { - hasLoggedError = true; - warning(false, "React DevTools encountered an error: %s", err); - } - } - }; -} - -function injectInternals(internals) { - if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === "undefined") { - // No DevTools - return false; - } - var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__; - if (hook.isDisabled) { - // This isn't a real property on the hook, but it can be set to opt out - // of DevTools integration and associated warnings and logs. - // https://github.com/facebook/react/issues/3877 - return true; - } - if (!hook.supportsFiber) { - { - warning( - false, - "The installed version of React DevTools is too old and will not work " + - "with the current version of React. Please update React DevTools. " + - "https://fb.me/react-devtools" - ); - } - // DevTools exists, even though it doesn't support Fiber. - return true; - } - try { - var rendererID = hook.inject(internals); - // We have successfully injected, so now it is safe to set up hooks. - onCommitFiberRoot = catchErrors(function(root) { - return hook.onCommitFiberRoot(rendererID, root); - }); - onCommitFiberUnmount = catchErrors(function(fiber) { - return hook.onCommitFiberUnmount(rendererID, fiber); - }); - } catch (err) { - // Catch all errors because it is unsafe to throw during initialization. - { - warning(false, "React DevTools encountered an error: %s.", err); - } - } - // DevTools exists - return true; -} - -function onCommitRoot(root) { - if (typeof onCommitFiberRoot === "function") { - onCommitFiberRoot(root); - } -} - -function onCommitUnmount(fiber) { - if (typeof onCommitFiberUnmount === "function") { - onCommitFiberUnmount(fiber); - } -} - -{ - var didWarnUpdateInsideUpdate = false; -} - -// Callbacks are not validated until invocation - -// Singly linked-list of updates. When an update is scheduled, it is added to -// the queue of the current fiber and the work-in-progress fiber. The two queues -// are separate but they share a persistent structure. -// -// During reconciliation, updates are removed from the work-in-progress fiber, -// but they remain on the current fiber. That ensures that if a work-in-progress -// is aborted, the aborted updates are recovered by cloning from current. -// -// The work-in-progress queue is always a subset of the current queue. -// -// When the tree is committed, the work-in-progress becomes the current. - -function createUpdateQueue(baseState) { - var queue = { - baseState: baseState, - expirationTime: NoWork, - first: null, - last: null, - callbackList: null, - hasForceUpdate: false, - isInitialized: false - }; - { - queue.isProcessing = false; - } - return queue; -} - -function insertUpdateIntoQueue(queue, update) { - // Append the update to the end of the list. - if (queue.last === null) { - // Queue is empty - queue.first = queue.last = update; - } else { - queue.last.next = update; - queue.last = update; - } - if ( - queue.expirationTime === NoWork || - queue.expirationTime > update.expirationTime - ) { - queue.expirationTime = update.expirationTime; - } -} - -function insertUpdateIntoFiber(fiber, update) { - // We'll have at least one and at most two distinct update queues. - var alternateFiber = fiber.alternate; - var queue1 = fiber.updateQueue; - if (queue1 === null) { - // TODO: We don't know what the base state will be until we begin work. - // It depends on which fiber is the next current. Initialize with an empty - // base state, then set to the memoizedState when rendering. Not super - // happy with this approach. - queue1 = fiber.updateQueue = createUpdateQueue(null); - } - - var queue2 = void 0; - if (alternateFiber !== null) { - queue2 = alternateFiber.updateQueue; - if (queue2 === null) { - queue2 = alternateFiber.updateQueue = createUpdateQueue(null); - } - } else { - queue2 = null; - } - queue2 = queue2 !== queue1 ? queue2 : null; - - // Warn if an update is scheduled from inside an updater function. - { - if ( - (queue1.isProcessing || (queue2 !== null && queue2.isProcessing)) && - !didWarnUpdateInsideUpdate - ) { - warning( - false, - "An update (setState, replaceState, or forceUpdate) was scheduled " + - "from inside an update function. Update functions should be pure, " + - "with zero side-effects. Consider using componentDidUpdate or a " + - "callback." - ); - didWarnUpdateInsideUpdate = true; - } - } - - // If there's only one queue, add the update to that queue and exit. - if (queue2 === null) { - insertUpdateIntoQueue(queue1, update); - return; - } - - // If either queue is empty, we need to add to both queues. - if (queue1.last === null || queue2.last === null) { - insertUpdateIntoQueue(queue1, update); - insertUpdateIntoQueue(queue2, update); - return; - } - - // If both lists are not empty, the last update is the same for both lists - // because of structural sharing. So, we should only append to one of - // the lists. - insertUpdateIntoQueue(queue1, update); - // But we still need to update the `last` pointer of queue2. - queue2.last = update; -} - -function getUpdateExpirationTime(fiber) { - if (fiber.tag !== ClassComponent && fiber.tag !== HostRoot) { - return NoWork; - } - var updateQueue = fiber.updateQueue; - if (updateQueue === null) { - return NoWork; - } - return updateQueue.expirationTime; -} - -function getStateFromUpdate(update, instance, prevState, props) { - var partialState = update.partialState; - if (typeof partialState === "function") { - var updateFn = partialState; - - // Invoke setState callback an extra time to help detect side-effects. - if (debugRenderPhaseSideEffects) { - updateFn.call(instance, prevState, props); - } - - return updateFn.call(instance, prevState, props); - } else { - return partialState; - } -} - -function processUpdateQueue( - current, - workInProgress, - queue, - instance, - props, - renderExpirationTime -) { - if (current !== null && current.updateQueue === queue) { - // We need to create a work-in-progress queue, by cloning the current queue. - var currentQueue = queue; - queue = workInProgress.updateQueue = { - baseState: currentQueue.baseState, - expirationTime: currentQueue.expirationTime, - first: currentQueue.first, - last: currentQueue.last, - isInitialized: currentQueue.isInitialized, - // These fields are no longer valid because they were already committed. - // Reset them. - callbackList: null, - hasForceUpdate: false - }; - } - - { - // Set this flag so we can warn if setState is called inside the update - // function of another setState. - queue.isProcessing = true; - } - - // Reset the remaining expiration time. If we skip over any updates, we'll - // increase this accordingly. - queue.expirationTime = NoWork; - - // TODO: We don't know what the base state will be until we begin work. - // It depends on which fiber is the next current. Initialize with an empty - // base state, then set to the memoizedState when rendering. Not super - // happy with this approach. - var state = void 0; - if (queue.isInitialized) { - state = queue.baseState; - } else { - state = queue.baseState = workInProgress.memoizedState; - queue.isInitialized = true; - } - var dontMutatePrevState = true; - var update = queue.first; - var didSkip = false; - while (update !== null) { - var updateExpirationTime = update.expirationTime; - if (updateExpirationTime > renderExpirationTime) { - // This update does not have sufficient priority. Skip it. - var remainingExpirationTime = queue.expirationTime; - if ( - remainingExpirationTime === NoWork || - remainingExpirationTime > updateExpirationTime - ) { - // Update the remaining expiration time. - queue.expirationTime = updateExpirationTime; - } - if (!didSkip) { - didSkip = true; - queue.baseState = state; - } - // Continue to the next update. - update = update.next; - continue; - } - - // This update does have sufficient priority. - - // If no previous updates were skipped, drop this update from the queue by - // advancing the head of the list. - if (!didSkip) { - queue.first = update.next; - if (queue.first === null) { - queue.last = null; - } - } - - // Process the update - var _partialState = void 0; - if (update.isReplace) { - state = getStateFromUpdate(update, instance, state, props); - dontMutatePrevState = true; - } else { - _partialState = getStateFromUpdate(update, instance, state, props); - if (_partialState) { - if (dontMutatePrevState) { - // $FlowFixMe: Idk how to type this properly. - state = Object.assign({}, state, _partialState); - } else { - state = Object.assign(state, _partialState); - } - dontMutatePrevState = false; - } - } - if (update.isForced) { - queue.hasForceUpdate = true; - } - if (update.callback !== null) { - // Append to list of callbacks. - var _callbackList = queue.callbackList; - if (_callbackList === null) { - _callbackList = queue.callbackList = []; - } - _callbackList.push(update); - } - update = update.next; - } - - if (queue.callbackList !== null) { - workInProgress.effectTag |= Callback; - } else if (queue.first === null && !queue.hasForceUpdate) { - // The queue is empty. We can reset it. - workInProgress.updateQueue = null; - } - - if (!didSkip) { - didSkip = true; - queue.baseState = state; - } - - { - // No longer processing. - queue.isProcessing = false; - } - - return state; -} - -function commitCallbacks(queue, context) { - var callbackList = queue.callbackList; - if (callbackList === null) { - return; - } - // Set the list to null to make sure they don't get called more than once. - queue.callbackList = null; - for (var i = 0; i < callbackList.length; i++) { - var update = callbackList[i]; - var _callback = update.callback; - // This update might be processed again. Clear the callback so it's only - // called once. - update.callback = null; - invariant( - typeof _callback === "function", - "Invalid argument passed as callback. Expected a function. Instead " + - "received: %s", - _callback - ); - _callback.call(context); - } -} - -var fakeInternalInstance = {}; -var isArray = Array.isArray; - -{ - var didWarnAboutStateAssignmentForComponent = {}; - - var warnOnInvalidCallback = function(callback, callerName) { - warning( - callback === null || typeof callback === "function", - "%s(...): Expected the last optional `callback` argument to be a " + - "function. Instead received: %s.", - callerName, - callback - ); - }; - - // This is so gross but it's at least non-critical and can be removed if - // it causes problems. This is meant to give a nicer error message for - // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component, - // ...)) which otherwise throws a "_processChildContext is not a function" - // exception. - Object.defineProperty(fakeInternalInstance, "_processChildContext", { - enumerable: false, - value: function() { - invariant( - false, - "_processChildContext is not available in React 16+. This likely " + - "means you have multiple copies of React and are attempting to nest " + - "a React 15 tree inside a React 16 tree using " + - "unstable_renderSubtreeIntoContainer, which isn't supported. Try " + - "to make sure you have only one copy of React (and ideally, switch " + - "to ReactDOM.createPortal)." - ); - } - }); - Object.freeze(fakeInternalInstance); -} - -var ReactFiberClassComponent = function( - scheduleWork, - computeExpirationForFiber, - memoizeProps, - memoizeState -) { - // Class component state updater - var updater = { - isMounted: isMounted, - enqueueSetState: function(instance, partialState, callback) { - var fiber = get(instance); - callback = callback === undefined ? null : callback; - { - warnOnInvalidCallback(callback, "setState"); - } - var expirationTime = computeExpirationForFiber(fiber); - var update = { - expirationTime: expirationTime, - partialState: partialState, - callback: callback, - isReplace: false, - isForced: false, - nextCallback: null, - next: null - }; - insertUpdateIntoFiber(fiber, update); - scheduleWork(fiber, expirationTime); - }, - enqueueReplaceState: function(instance, state, callback) { - var fiber = get(instance); - callback = callback === undefined ? null : callback; - { - warnOnInvalidCallback(callback, "replaceState"); - } - var expirationTime = computeExpirationForFiber(fiber); - var update = { - expirationTime: expirationTime, - partialState: state, - callback: callback, - isReplace: true, - isForced: false, - nextCallback: null, - next: null - }; - insertUpdateIntoFiber(fiber, update); - scheduleWork(fiber, expirationTime); - }, - enqueueForceUpdate: function(instance, callback) { - var fiber = get(instance); - callback = callback === undefined ? null : callback; - { - warnOnInvalidCallback(callback, "forceUpdate"); - } - var expirationTime = computeExpirationForFiber(fiber); - var update = { - expirationTime: expirationTime, - partialState: null, - callback: callback, - isReplace: false, - isForced: true, - nextCallback: null, - next: null - }; - insertUpdateIntoFiber(fiber, update); - scheduleWork(fiber, expirationTime); - } - }; - - function checkShouldComponentUpdate( - workInProgress, - oldProps, - newProps, - oldState, - newState, - newContext - ) { - if ( - oldProps === null || - (workInProgress.updateQueue !== null && - workInProgress.updateQueue.hasForceUpdate) - ) { - // If the workInProgress already has an Update effect, return true - return true; - } - - var instance = workInProgress.stateNode; - var type = workInProgress.type; - if (typeof instance.shouldComponentUpdate === "function") { - startPhaseTimer(workInProgress, "shouldComponentUpdate"); - var shouldUpdate = instance.shouldComponentUpdate( - newProps, - newState, - newContext - ); - stopPhaseTimer(); - - // Simulate an async bailout/interruption by invoking lifecycle twice. - if (debugRenderPhaseSideEffects) { - instance.shouldComponentUpdate(newProps, newState, newContext); - } - - { - warning( - shouldUpdate !== undefined, - "%s.shouldComponentUpdate(): Returned undefined instead of a " + - "boolean value. Make sure to return true or false.", - getComponentName(workInProgress) || "Unknown" - ); - } - - return shouldUpdate; - } - - if (type.prototype && type.prototype.isPureReactComponent) { - return ( - !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState) - ); - } - - return true; - } - - function checkClassInstance(workInProgress) { - var instance = workInProgress.stateNode; - var type = workInProgress.type; - { - var name = getComponentName(workInProgress); - var renderPresent = instance.render; - - if (!renderPresent) { - if (type.prototype && typeof type.prototype.render === "function") { - warning( - false, - "%s(...): No `render` method found on the returned component " + - "instance: did you accidentally return an object from the constructor?", - name - ); - } else { - warning( - false, - "%s(...): No `render` method found on the returned component " + - "instance: you may have forgotten to define `render`.", - name - ); - } - } - - var noGetInitialStateOnES6 = - !instance.getInitialState || - instance.getInitialState.isReactClassApproved || - instance.state; - warning( - noGetInitialStateOnES6, - "getInitialState was defined on %s, a plain JavaScript class. " + - "This is only supported for classes created using React.createClass. " + - "Did you mean to define a state property instead?", - name - ); - var noGetDefaultPropsOnES6 = - !instance.getDefaultProps || - instance.getDefaultProps.isReactClassApproved; - warning( - noGetDefaultPropsOnES6, - "getDefaultProps was defined on %s, a plain JavaScript class. " + - "This is only supported for classes created using React.createClass. " + - "Use a static property to define defaultProps instead.", - name - ); - var noInstancePropTypes = !instance.propTypes; - warning( - noInstancePropTypes, - "propTypes was defined as an instance property on %s. Use a static " + - "property to define propTypes instead.", - name - ); - var noInstanceContextTypes = !instance.contextTypes; - warning( - noInstanceContextTypes, - "contextTypes was defined as an instance property on %s. Use a static " + - "property to define contextTypes instead.", - name - ); - var noComponentShouldUpdate = - typeof instance.componentShouldUpdate !== "function"; - warning( - noComponentShouldUpdate, - "%s has a method called " + - "componentShouldUpdate(). Did you mean shouldComponentUpdate()? " + - "The name is phrased as a question because the function is " + - "expected to return a value.", - name - ); - if ( - type.prototype && - type.prototype.isPureReactComponent && - typeof instance.shouldComponentUpdate !== "undefined" - ) { - warning( - false, - "%s has a method called shouldComponentUpdate(). " + - "shouldComponentUpdate should not be used when extending React.PureComponent. " + - "Please extend React.Component if shouldComponentUpdate is used.", - getComponentName(workInProgress) || "A pure component" - ); - } - var noComponentDidUnmount = - typeof instance.componentDidUnmount !== "function"; - warning( - noComponentDidUnmount, - "%s has a method called " + - "componentDidUnmount(). But there is no such lifecycle method. " + - "Did you mean componentWillUnmount()?", - name - ); - var noComponentDidReceiveProps = - typeof instance.componentDidReceiveProps !== "function"; - warning( - noComponentDidReceiveProps, - "%s has a method called " + - "componentDidReceiveProps(). But there is no such lifecycle method. " + - "If you meant to update the state in response to changing props, " + - "use componentWillReceiveProps(). If you meant to fetch data or " + - "run side-effects or mutations after React has updated the UI, use componentDidUpdate().", - name - ); - var noComponentWillRecieveProps = - typeof instance.componentWillRecieveProps !== "function"; - warning( - noComponentWillRecieveProps, - "%s has a method called " + - "componentWillRecieveProps(). Did you mean componentWillReceiveProps()?", - name - ); - var hasMutatedProps = instance.props !== workInProgress.pendingProps; - warning( - instance.props === undefined || !hasMutatedProps, - "%s(...): When calling super() in `%s`, make sure to pass " + - "up the same props that your component's constructor was passed.", - name, - name - ); - var noInstanceDefaultProps = !instance.defaultProps; - warning( - noInstanceDefaultProps, - "Setting defaultProps as an instance property on %s is not supported and will be ignored." + - " Instead, define defaultProps as a static property on %s.", - name, - name - ); - } - - var state = instance.state; - if (state && (typeof state !== "object" || isArray(state))) { - warning( - false, - "%s.state: must be set to an object or null", - getComponentName(workInProgress) - ); - } - if (typeof instance.getChildContext === "function") { - warning( - typeof workInProgress.type.childContextTypes === "object", - "%s.getChildContext(): childContextTypes must be defined in order to " + - "use getChildContext().", - getComponentName(workInProgress) - ); - } - } - - function resetInputPointers(workInProgress, instance) { - instance.props = workInProgress.memoizedProps; - instance.state = workInProgress.memoizedState; - } - - function adoptClassInstance(workInProgress, instance) { - instance.updater = updater; - workInProgress.stateNode = instance; - // The instance needs access to the fiber so that it can schedule updates - set(instance, workInProgress); - { - instance._reactInternalInstance = fakeInternalInstance; - } - } - - function constructClassInstance(workInProgress, props) { - var ctor = workInProgress.type; - var unmaskedContext = getUnmaskedContext(workInProgress); - var needsContext = isContextConsumer(workInProgress); - var context = needsContext - ? getMaskedContext(workInProgress, unmaskedContext) - : emptyObject; - var instance = new ctor(props, context); - adoptClassInstance(workInProgress, instance); - - // Cache unmasked context so we can avoid recreating masked context unless necessary. - // ReactFiberContext usually updates this cache but can't for newly-created instances. - if (needsContext) { - cacheContext(workInProgress, unmaskedContext, context); - } - - return instance; - } - - function callComponentWillMount(workInProgress, instance) { - startPhaseTimer(workInProgress, "componentWillMount"); - var oldState = instance.state; - instance.componentWillMount(); - stopPhaseTimer(); - - // Simulate an async bailout/interruption by invoking lifecycle twice. - if (debugRenderPhaseSideEffects) { - instance.componentWillMount(); - } - - if (oldState !== instance.state) { - { - warning( - false, - "%s.componentWillMount(): Assigning directly to this.state is " + - "deprecated (except inside a component's " + - "constructor). Use setState instead.", - getComponentName(workInProgress) - ); - } - updater.enqueueReplaceState(instance, instance.state, null); - } - } - - function callComponentWillReceiveProps( - workInProgress, - instance, - newProps, - newContext - ) { - startPhaseTimer(workInProgress, "componentWillReceiveProps"); - var oldState = instance.state; - instance.componentWillReceiveProps(newProps, newContext); - stopPhaseTimer(); - - // Simulate an async bailout/interruption by invoking lifecycle twice. - if (debugRenderPhaseSideEffects) { - instance.componentWillReceiveProps(newProps, newContext); - } - - if (instance.state !== oldState) { - { - var componentName = getComponentName(workInProgress) || "Component"; - if (!didWarnAboutStateAssignmentForComponent[componentName]) { - warning( - false, - "%s.componentWillReceiveProps(): Assigning directly to " + - "this.state is deprecated (except inside a component's " + - "constructor). Use setState instead.", - componentName - ); - didWarnAboutStateAssignmentForComponent[componentName] = true; - } - } - updater.enqueueReplaceState(instance, instance.state, null); - } - } - - // Invokes the mount life-cycles on a previously never rendered instance. - function mountClassInstance(workInProgress, renderExpirationTime) { - var current = workInProgress.alternate; - - { - checkClassInstance(workInProgress); - } - - var instance = workInProgress.stateNode; - var state = instance.state || null; - var props = workInProgress.pendingProps; - var unmaskedContext = getUnmaskedContext(workInProgress); - - instance.props = props; - instance.state = workInProgress.memoizedState = state; - instance.refs = emptyObject; - instance.context = getMaskedContext(workInProgress, unmaskedContext); - - if ( - enableAsyncSubtreeAPI && - workInProgress.type != null && - workInProgress.type.prototype != null && - workInProgress.type.prototype.unstable_isAsyncReactComponent === true - ) { - workInProgress.internalContextTag |= AsyncUpdates; - } - - if (typeof instance.componentWillMount === "function") { - callComponentWillMount(workInProgress, instance); - // If we had additional state updates during this life-cycle, let's - // process them now. - var updateQueue = workInProgress.updateQueue; - if (updateQueue !== null) { - instance.state = processUpdateQueue( - current, - workInProgress, - updateQueue, - instance, - props, - renderExpirationTime - ); - } - } - if (typeof instance.componentDidMount === "function") { - workInProgress.effectTag |= Update; - } - } - - // Called on a preexisting class instance. Returns false if a resumed render - // could be reused. - // function resumeMountClassInstance( - // workInProgress: Fiber, - // priorityLevel: PriorityLevel, - // ): boolean { - // const instance = workInProgress.stateNode; - // resetInputPointers(workInProgress, instance); - - // let newState = workInProgress.memoizedState; - // let newProps = workInProgress.pendingProps; - // if (!newProps) { - // // If there isn't any new props, then we'll reuse the memoized props. - // // This could be from already completed work. - // newProps = workInProgress.memoizedProps; - // invariant( - // newProps != null, - // 'There should always be pending or memoized props. This error is ' + - // 'likely caused by a bug in React. Please file an issue.', - // ); - // } - // const newUnmaskedContext = getUnmaskedContext(workInProgress); - // const newContext = getMaskedContext(workInProgress, newUnmaskedContext); - - // const oldContext = instance.context; - // const oldProps = workInProgress.memoizedProps; - - // if ( - // typeof instance.componentWillReceiveProps === 'function' && - // (oldProps !== newProps || oldContext !== newContext) - // ) { - // callComponentWillReceiveProps( - // workInProgress, - // instance, - // newProps, - // newContext, - // ); - // } - - // // Process the update queue before calling shouldComponentUpdate - // const updateQueue = workInProgress.updateQueue; - // if (updateQueue !== null) { - // newState = processUpdateQueue( - // workInProgress, - // updateQueue, - // instance, - // newState, - // newProps, - // priorityLevel, - // ); - // } - - // // TODO: Should we deal with a setState that happened after the last - // // componentWillMount and before this componentWillMount? Probably - // // unsupported anyway. - - // if ( - // !checkShouldComponentUpdate( - // workInProgress, - // workInProgress.memoizedProps, - // newProps, - // workInProgress.memoizedState, - // newState, - // newContext, - // ) - // ) { - // // Update the existing instance's state, props, and context pointers even - // // though we're bailing out. - // instance.props = newProps; - // instance.state = newState; - // instance.context = newContext; - // return false; - // } - - // // Update the input pointers now so that they are correct when we call - // // componentWillMount - // instance.props = newProps; - // instance.state = newState; - // instance.context = newContext; - - // if (typeof instance.componentWillMount === 'function') { - // callComponentWillMount(workInProgress, instance); - // // componentWillMount may have called setState. Process the update queue. - // const newUpdateQueue = workInProgress.updateQueue; - // if (newUpdateQueue !== null) { - // newState = processUpdateQueue( - // workInProgress, - // newUpdateQueue, - // instance, - // newState, - // newProps, - // priorityLevel, - // ); - // } - // } - - // if (typeof instance.componentDidMount === 'function') { - // workInProgress.effectTag |= Update; - // } - - // instance.state = newState; - - // return true; - // } - - // Invokes the update life-cycles and returns false if it shouldn't rerender. - function updateClassInstance(current, workInProgress, renderExpirationTime) { - var instance = workInProgress.stateNode; - resetInputPointers(workInProgress, instance); - - var oldProps = workInProgress.memoizedProps; - var newProps = workInProgress.pendingProps; - var oldContext = instance.context; - var newUnmaskedContext = getUnmaskedContext(workInProgress); - var newContext = getMaskedContext(workInProgress, newUnmaskedContext); - - // Note: During these life-cycles, instance.props/instance.state are what - // ever the previously attempted to render - not the "current". However, - // during componentDidUpdate we pass the "current" props. - - if ( - typeof instance.componentWillReceiveProps === "function" && - (oldProps !== newProps || oldContext !== newContext) - ) { - callComponentWillReceiveProps( - workInProgress, - instance, - newProps, - newContext - ); - } - - // Compute the next state using the memoized state and the update queue. - var oldState = workInProgress.memoizedState; - // TODO: Previous state can be null. - var newState = void 0; - if (workInProgress.updateQueue !== null) { - newState = processUpdateQueue( - current, - workInProgress, - workInProgress.updateQueue, - instance, - newProps, - renderExpirationTime - ); - } else { - newState = oldState; - } - - if ( - oldProps === newProps && - oldState === newState && - !hasContextChanged() && - !( - workInProgress.updateQueue !== null && - workInProgress.updateQueue.hasForceUpdate - ) - ) { - // If an update was already in progress, we should schedule an Update - // effect even though we're bailing out, so that cWU/cDU are called. - if (typeof instance.componentDidUpdate === "function") { - if ( - oldProps !== current.memoizedProps || - oldState !== current.memoizedState - ) { - workInProgress.effectTag |= Update; - } - } - return false; - } - - var shouldUpdate = checkShouldComponentUpdate( - workInProgress, - oldProps, - newProps, - oldState, - newState, - newContext - ); - - if (shouldUpdate) { - if (typeof instance.componentWillUpdate === "function") { - startPhaseTimer(workInProgress, "componentWillUpdate"); - instance.componentWillUpdate(newProps, newState, newContext); - stopPhaseTimer(); - - // Simulate an async bailout/interruption by invoking lifecycle twice. - if (debugRenderPhaseSideEffects) { - instance.componentWillUpdate(newProps, newState, newContext); - } - } - if (typeof instance.componentDidUpdate === "function") { - workInProgress.effectTag |= Update; - } - } else { - // If an update was already in progress, we should schedule an Update - // effect even though we're bailing out, so that cWU/cDU are called. - if (typeof instance.componentDidUpdate === "function") { - if ( - oldProps !== current.memoizedProps || - oldState !== current.memoizedState - ) { - workInProgress.effectTag |= Update; - } - } - - // If shouldComponentUpdate returned false, we should still update the - // memoized props/state to indicate that this work can be reused. - memoizeProps(workInProgress, newProps); - memoizeState(workInProgress, newState); - } - - // Update the existing instance's state, props, and context pointers even - // if shouldComponentUpdate returns false. - instance.props = newProps; - instance.state = newState; - instance.context = newContext; - - return shouldUpdate; - } - - return { - adoptClassInstance: adoptClassInstance, - constructClassInstance: constructClassInstance, - mountClassInstance: mountClassInstance, - // resumeMountClassInstance, - updateClassInstance: updateClassInstance - }; -}; - -var getCurrentFiberStackAddendum$1 = - ReactDebugCurrentFiber.getCurrentFiberStackAddendum; - -{ - var didWarnAboutMaps = false; - /** - * Warn if there's no key explicitly set on dynamic arrays of children or - * object keys are not valid. This allows us to keep track of children between - * updates. - */ - var ownerHasKeyUseWarning = {}; - var ownerHasFunctionTypeWarning = {}; - - var warnForMissingKey = function(child) { - if (child === null || typeof child !== "object") { - return; - } - if (!child._store || child._store.validated || child.key != null) { - return; - } - invariant( - typeof child._store === "object", - "React Component in warnForMissingKey should have a _store. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - child._store.validated = true; - - var currentComponentErrorInfo = - "Each child in an array or iterator should have a unique " + - '"key" prop. See https://fb.me/react-warning-keys for ' + - "more information." + - (getCurrentFiberStackAddendum$1() || ""); - if (ownerHasKeyUseWarning[currentComponentErrorInfo]) { - return; - } - ownerHasKeyUseWarning[currentComponentErrorInfo] = true; - - warning( - false, - "Each child in an array or iterator should have a unique " + - '"key" prop. See https://fb.me/react-warning-keys for ' + - "more information.%s", - getCurrentFiberStackAddendum$1() - ); - }; -} - -var isArray$1 = Array.isArray; - -function coerceRef(current, element) { - var mixedRef = element.ref; - if (mixedRef !== null && typeof mixedRef !== "function") { - if (element._owner) { - var owner = element._owner; - var inst = void 0; - if (owner) { - var ownerFiber = owner; - invariant( - ownerFiber.tag === ClassComponent, - "Stateless function components cannot have refs." - ); - inst = ownerFiber.stateNode; - } - invariant( - inst, - "Missing owner for string ref %s. This error is likely caused by a " + - "bug in React. Please file an issue.", - mixedRef - ); - var stringRef = "" + mixedRef; - // Check if previous string ref matches new string ref - if ( - current !== null && - current.ref !== null && - current.ref._stringRef === stringRef - ) { - return current.ref; - } - var ref = function(value) { - var refs = inst.refs === emptyObject ? (inst.refs = {}) : inst.refs; - if (value === null) { - delete refs[stringRef]; - } else { - refs[stringRef] = value; - } - }; - ref._stringRef = stringRef; - return ref; - } else { - invariant( - typeof mixedRef === "string", - "Expected ref to be a function or a string." - ); - invariant( - element._owner, - "Element ref was specified as a string (%s) but no owner was " + - "set. You may have multiple copies of React loaded. " + - "(details: https://fb.me/react-refs-must-have-owner).", - mixedRef - ); - } - } - return mixedRef; -} - -function throwOnInvalidObjectType(returnFiber, newChild) { - if (returnFiber.type !== "textarea") { - var addendum = ""; - { - addendum = - " If you meant to render a collection of children, use an array " + - "instead." + - (getCurrentFiberStackAddendum$1() || ""); - } - invariant( - false, - "Objects are not valid as a React child (found: %s).%s", - Object.prototype.toString.call(newChild) === "[object Object]" - ? "object with keys {" + Object.keys(newChild).join(", ") + "}" - : newChild, - addendum - ); - } -} - -function warnOnFunctionType() { - var currentComponentErrorInfo = - "Functions are not valid as a React child. This may happen if " + - "you return a Component instead of from render. " + - "Or maybe you meant to call this function rather than return it." + - (getCurrentFiberStackAddendum$1() || ""); - - if (ownerHasFunctionTypeWarning[currentComponentErrorInfo]) { - return; - } - ownerHasFunctionTypeWarning[currentComponentErrorInfo] = true; - - warning( - false, - "Functions are not valid as a React child. This may happen if " + - "you return a Component instead of from render. " + - "Or maybe you meant to call this function rather than return it.%s", - getCurrentFiberStackAddendum$1() || "" - ); -} - -// This wrapper function exists because I expect to clone the code in each path -// to be able to optimize each path individually by branching early. This needs -// a compiler or we can do it manually. Helpers that don't need this branching -// live outside of this function. -function ChildReconciler(shouldTrackSideEffects) { - function deleteChild(returnFiber, childToDelete) { - if (!shouldTrackSideEffects) { - // Noop. - return; - } - // Deletions are added in reversed order so we add it to the front. - // At this point, the return fiber's effect list is empty except for - // deletions, so we can just append the deletion to the list. The remaining - // effects aren't added until the complete phase. Once we implement - // resuming, this may not be true. - var last = returnFiber.lastEffect; - if (last !== null) { - last.nextEffect = childToDelete; - returnFiber.lastEffect = childToDelete; - } else { - returnFiber.firstEffect = returnFiber.lastEffect = childToDelete; - } - childToDelete.nextEffect = null; - childToDelete.effectTag = Deletion; - } - - function deleteRemainingChildren(returnFiber, currentFirstChild) { - if (!shouldTrackSideEffects) { - // Noop. - return null; - } - - // TODO: For the shouldClone case, this could be micro-optimized a bit by - // assuming that after the first child we've already added everything. - var childToDelete = currentFirstChild; - while (childToDelete !== null) { - deleteChild(returnFiber, childToDelete); - childToDelete = childToDelete.sibling; - } - return null; - } - - function mapRemainingChildren(returnFiber, currentFirstChild) { - // Add the remaining children to a temporary map so that we can find them by - // keys quickly. Implicit (null) keys get added to this set with their index - var existingChildren = new Map(); - - var existingChild = currentFirstChild; - while (existingChild !== null) { - if (existingChild.key !== null) { - existingChildren.set(existingChild.key, existingChild); - } else { - existingChildren.set(existingChild.index, existingChild); - } - existingChild = existingChild.sibling; - } - return existingChildren; - } - - function useFiber(fiber, pendingProps, expirationTime) { - // We currently set sibling to null and index to 0 here because it is easy - // to forget to do before returning it. E.g. for the single child case. - var clone = createWorkInProgress(fiber, pendingProps, expirationTime); - clone.index = 0; - clone.sibling = null; - return clone; - } - - function placeChild(newFiber, lastPlacedIndex, newIndex) { - newFiber.index = newIndex; - if (!shouldTrackSideEffects) { - // Noop. - return lastPlacedIndex; - } - var current = newFiber.alternate; - if (current !== null) { - var oldIndex = current.index; - if (oldIndex < lastPlacedIndex) { - // This is a move. - newFiber.effectTag = Placement; - return lastPlacedIndex; - } else { - // This item can stay in place. - return oldIndex; - } - } else { - // This is an insertion. - newFiber.effectTag = Placement; - return lastPlacedIndex; - } - } - - function placeSingleChild(newFiber) { - // This is simpler for the single child case. We only need to do a - // placement for inserting new children. - if (shouldTrackSideEffects && newFiber.alternate === null) { - newFiber.effectTag = Placement; - } - return newFiber; - } - - function updateTextNode(returnFiber, current, textContent, expirationTime) { - if (current === null || current.tag !== HostText) { - // Insert - var created = createFiberFromText( - textContent, - returnFiber.internalContextTag, - expirationTime - ); - created["return"] = returnFiber; - return created; - } else { - // Update - var existing = useFiber(current, textContent, expirationTime); - existing["return"] = returnFiber; - return existing; - } - } - - function updateElement(returnFiber, current, element, expirationTime) { - if (current !== null && current.type === element.type) { - // Move based on index - var existing = useFiber(current, element.props, expirationTime); - existing.ref = coerceRef(current, element); - existing["return"] = returnFiber; - { - existing._debugSource = element._source; - existing._debugOwner = element._owner; - } - return existing; - } else { - // Insert - var created = createFiberFromElement( - element, - returnFiber.internalContextTag, - expirationTime - ); - created.ref = coerceRef(current, element); - created["return"] = returnFiber; - return created; - } - } - - function updateCall(returnFiber, current, call, expirationTime) { - // TODO: Should this also compare handler to determine whether to reuse? - if (current === null || current.tag !== CallComponent) { - // Insert - var created = createFiberFromCall( - call, - returnFiber.internalContextTag, - expirationTime - ); - created["return"] = returnFiber; - return created; - } else { - // Move based on index - var existing = useFiber(current, call, expirationTime); - existing["return"] = returnFiber; - return existing; - } - } - - function updateReturn(returnFiber, current, returnNode, expirationTime) { - if (current === null || current.tag !== ReturnComponent) { - // Insert - var created = createFiberFromReturn( - returnNode, - returnFiber.internalContextTag, - expirationTime - ); - created.type = returnNode.value; - created["return"] = returnFiber; - return created; - } else { - // Move based on index - var existing = useFiber(current, null, expirationTime); - existing.type = returnNode.value; - existing["return"] = returnFiber; - return existing; - } - } - - function updatePortal(returnFiber, current, portal, expirationTime) { - if ( - current === null || - current.tag !== HostPortal || - current.stateNode.containerInfo !== portal.containerInfo || - current.stateNode.implementation !== portal.implementation - ) { - // Insert - var created = createFiberFromPortal( - portal, - returnFiber.internalContextTag, - expirationTime - ); - created["return"] = returnFiber; - return created; - } else { - // Update - var existing = useFiber(current, portal.children || [], expirationTime); - existing["return"] = returnFiber; - return existing; - } - } - - function updateFragment(returnFiber, current, fragment, expirationTime, key) { - if (current === null || current.tag !== Fragment) { - // Insert - var created = createFiberFromFragment( - fragment, - returnFiber.internalContextTag, - expirationTime, - key - ); - created["return"] = returnFiber; - return created; - } else { - // Update - var existing = useFiber(current, fragment, expirationTime); - existing["return"] = returnFiber; - return existing; - } - } - - function createChild(returnFiber, newChild, expirationTime) { - if (typeof newChild === "string" || typeof newChild === "number") { - // Text nodes don't have keys. If the previous node is implicitly keyed - // we can continue to replace it without aborting even if it is not a text - // node. - var created = createFiberFromText( - "" + newChild, - returnFiber.internalContextTag, - expirationTime - ); - created["return"] = returnFiber; - return created; - } - - if (typeof newChild === "object" && newChild !== null) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: { - if (newChild.type === REACT_FRAGMENT_TYPE) { - var _created = createFiberFromFragment( - newChild.props.children, - returnFiber.internalContextTag, - expirationTime, - newChild.key - ); - _created["return"] = returnFiber; - return _created; - } else { - var _created2 = createFiberFromElement( - newChild, - returnFiber.internalContextTag, - expirationTime - ); - _created2.ref = coerceRef(null, newChild); - _created2["return"] = returnFiber; - return _created2; - } - } - - case REACT_CALL_TYPE: { - var _created3 = createFiberFromCall( - newChild, - returnFiber.internalContextTag, - expirationTime - ); - _created3["return"] = returnFiber; - return _created3; - } - - case REACT_RETURN_TYPE: { - var _created4 = createFiberFromReturn( - newChild, - returnFiber.internalContextTag, - expirationTime - ); - _created4.type = newChild.value; - _created4["return"] = returnFiber; - return _created4; - } - - case REACT_PORTAL_TYPE: { - var _created5 = createFiberFromPortal( - newChild, - returnFiber.internalContextTag, - expirationTime - ); - _created5["return"] = returnFiber; - return _created5; - } - } - - if (isArray$1(newChild) || getIteratorFn(newChild)) { - var _created6 = createFiberFromFragment( - newChild, - returnFiber.internalContextTag, - expirationTime, - null - ); - _created6["return"] = returnFiber; - return _created6; - } - - throwOnInvalidObjectType(returnFiber, newChild); - } - - { - if (typeof newChild === "function") { - warnOnFunctionType(); - } - } - - return null; - } - - function updateSlot(returnFiber, oldFiber, newChild, expirationTime) { - // Update the fiber if the keys match, otherwise return null. - - var key = oldFiber !== null ? oldFiber.key : null; - - if (typeof newChild === "string" || typeof newChild === "number") { - // Text nodes don't have keys. If the previous node is implicitly keyed - // we can continue to replace it without aborting even if it is not a text - // node. - if (key !== null) { - return null; - } - return updateTextNode( - returnFiber, - oldFiber, - "" + newChild, - expirationTime - ); - } - - if (typeof newChild === "object" && newChild !== null) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: { - if (newChild.key === key) { - if (newChild.type === REACT_FRAGMENT_TYPE) { - return updateFragment( - returnFiber, - oldFiber, - newChild.props.children, - expirationTime, - key - ); - } - return updateElement( - returnFiber, - oldFiber, - newChild, - expirationTime - ); - } else { - return null; - } - } - - case REACT_CALL_TYPE: { - if (newChild.key === key) { - return updateCall(returnFiber, oldFiber, newChild, expirationTime); - } else { - return null; - } - } - - case REACT_RETURN_TYPE: { - // Returns don't have keys. If the previous node is implicitly keyed - // we can continue to replace it without aborting even if it is not a - // yield. - if (key === null) { - return updateReturn( - returnFiber, - oldFiber, - newChild, - expirationTime - ); - } else { - return null; - } - } - - case REACT_PORTAL_TYPE: { - if (newChild.key === key) { - return updatePortal( - returnFiber, - oldFiber, - newChild, - expirationTime - ); - } else { - return null; - } - } - } - - if (isArray$1(newChild) || getIteratorFn(newChild)) { - if (key !== null) { - return null; - } - - return updateFragment( - returnFiber, - oldFiber, - newChild, - expirationTime, - null - ); - } - - throwOnInvalidObjectType(returnFiber, newChild); - } - - { - if (typeof newChild === "function") { - warnOnFunctionType(); - } - } - - return null; - } - - function updateFromMap( - existingChildren, - returnFiber, - newIdx, - newChild, - expirationTime - ) { - if (typeof newChild === "string" || typeof newChild === "number") { - // Text nodes don't have keys, so we neither have to check the old nor - // new node for the key. If both are text nodes, they match. - var matchedFiber = existingChildren.get(newIdx) || null; - return updateTextNode( - returnFiber, - matchedFiber, - "" + newChild, - expirationTime - ); - } - - if (typeof newChild === "object" && newChild !== null) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: { - var _matchedFiber = - existingChildren.get( - newChild.key === null ? newIdx : newChild.key - ) || null; - if (newChild.type === REACT_FRAGMENT_TYPE) { - return updateFragment( - returnFiber, - _matchedFiber, - newChild.props.children, - expirationTime, - newChild.key - ); - } - return updateElement( - returnFiber, - _matchedFiber, - newChild, - expirationTime - ); - } - - case REACT_CALL_TYPE: { - var _matchedFiber2 = - existingChildren.get( - newChild.key === null ? newIdx : newChild.key - ) || null; - return updateCall( - returnFiber, - _matchedFiber2, - newChild, - expirationTime - ); - } - - case REACT_RETURN_TYPE: { - // Returns don't have keys, so we neither have to check the old nor - // new node for the key. If both are returns, they match. - var _matchedFiber3 = existingChildren.get(newIdx) || null; - return updateReturn( - returnFiber, - _matchedFiber3, - newChild, - expirationTime - ); - } - - case REACT_PORTAL_TYPE: { - var _matchedFiber4 = - existingChildren.get( - newChild.key === null ? newIdx : newChild.key - ) || null; - return updatePortal( - returnFiber, - _matchedFiber4, - newChild, - expirationTime - ); - } - } - - if (isArray$1(newChild) || getIteratorFn(newChild)) { - var _matchedFiber5 = existingChildren.get(newIdx) || null; - return updateFragment( - returnFiber, - _matchedFiber5, - newChild, - expirationTime, - null - ); - } - - throwOnInvalidObjectType(returnFiber, newChild); - } - - { - if (typeof newChild === "function") { - warnOnFunctionType(); - } - } - - return null; - } - - /** - * Warns if there is a duplicate or missing key - */ - function warnOnInvalidKey(child, knownKeys) { - { - if (typeof child !== "object" || child === null) { - return knownKeys; - } - switch (child.$$typeof) { - case REACT_ELEMENT_TYPE: - case REACT_CALL_TYPE: - case REACT_PORTAL_TYPE: - warnForMissingKey(child); - var key = child.key; - if (typeof key !== "string") { - break; - } - if (knownKeys === null) { - knownKeys = new Set(); - knownKeys.add(key); - break; - } - if (!knownKeys.has(key)) { - knownKeys.add(key); - break; - } - warning( - false, - "Encountered two children with the same key, `%s`. " + - "Keys should be unique so that components maintain their identity " + - "across updates. Non-unique keys may cause children to be " + - "duplicated and/or omitted — the behavior is unsupported and " + - "could change in a future version.%s", - key, - getCurrentFiberStackAddendum$1() - ); - break; - default: - break; - } - } - return knownKeys; - } - - function reconcileChildrenArray( - returnFiber, - currentFirstChild, - newChildren, - expirationTime - ) { - // This algorithm can't optimize by searching from boths ends since we - // don't have backpointers on fibers. I'm trying to see how far we can get - // with that model. If it ends up not being worth the tradeoffs, we can - // add it later. - - // Even with a two ended optimization, we'd want to optimize for the case - // where there are few changes and brute force the comparison instead of - // going for the Map. It'd like to explore hitting that path first in - // forward-only mode and only go for the Map once we notice that we need - // lots of look ahead. This doesn't handle reversal as well as two ended - // search but that's unusual. Besides, for the two ended optimization to - // work on Iterables, we'd need to copy the whole set. - - // In this first iteration, we'll just live with hitting the bad case - // (adding everything to a Map) in for every insert/move. - - // If you change this code, also update reconcileChildrenIterator() which - // uses the same algorithm. - - { - // First, validate keys. - var knownKeys = null; - for (var i = 0; i < newChildren.length; i++) { - var child = newChildren[i]; - knownKeys = warnOnInvalidKey(child, knownKeys); - } - } - - var resultingFirstChild = null; - var previousNewFiber = null; - - var oldFiber = currentFirstChild; - var lastPlacedIndex = 0; - var newIdx = 0; - var nextOldFiber = null; - for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) { - if (oldFiber.index > newIdx) { - nextOldFiber = oldFiber; - oldFiber = null; - } else { - nextOldFiber = oldFiber.sibling; - } - var newFiber = updateSlot( - returnFiber, - oldFiber, - newChildren[newIdx], - expirationTime - ); - if (newFiber === null) { - // TODO: This breaks on empty slots like null children. That's - // unfortunate because it triggers the slow path all the time. We need - // a better way to communicate whether this was a miss or null, - // boolean, undefined, etc. - if (oldFiber === null) { - oldFiber = nextOldFiber; - } - break; - } - if (shouldTrackSideEffects) { - if (oldFiber && newFiber.alternate === null) { - // We matched the slot, but we didn't reuse the existing fiber, so we - // need to delete the existing child. - deleteChild(returnFiber, oldFiber); - } - } - lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = newFiber; - } else { - // TODO: Defer siblings if we're not at the right index for this slot. - // I.e. if we had null values before, then we want to defer this - // for each null value. However, we also don't want to call updateSlot - // with the previous one. - previousNewFiber.sibling = newFiber; - } - previousNewFiber = newFiber; - oldFiber = nextOldFiber; - } - - if (newIdx === newChildren.length) { - // We've reached the end of the new children. We can delete the rest. - deleteRemainingChildren(returnFiber, oldFiber); - return resultingFirstChild; - } - - if (oldFiber === null) { - // If we don't have any more existing children we can choose a fast path - // since the rest will all be insertions. - for (; newIdx < newChildren.length; newIdx++) { - var _newFiber = createChild( - returnFiber, - newChildren[newIdx], - expirationTime - ); - if (!_newFiber) { - continue; - } - lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx); - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = _newFiber; - } else { - previousNewFiber.sibling = _newFiber; - } - previousNewFiber = _newFiber; - } - return resultingFirstChild; - } - - // Add all children to a key map for quick lookups. - var existingChildren = mapRemainingChildren(returnFiber, oldFiber); - - // Keep scanning and use the map to restore deleted items as moves. - for (; newIdx < newChildren.length; newIdx++) { - var _newFiber2 = updateFromMap( - existingChildren, - returnFiber, - newIdx, - newChildren[newIdx], - expirationTime - ); - if (_newFiber2) { - if (shouldTrackSideEffects) { - if (_newFiber2.alternate !== null) { - // The new fiber is a work in progress, but if there exists a - // current, that means that we reused the fiber. We need to delete - // it from the child list so that we don't add it to the deletion - // list. - existingChildren["delete"]( - _newFiber2.key === null ? newIdx : _newFiber2.key - ); - } - } - lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx); - if (previousNewFiber === null) { - resultingFirstChild = _newFiber2; - } else { - previousNewFiber.sibling = _newFiber2; - } - previousNewFiber = _newFiber2; - } - } - - if (shouldTrackSideEffects) { - // Any existing children that weren't consumed above were deleted. We need - // to add them to the deletion list. - existingChildren.forEach(function(child) { - return deleteChild(returnFiber, child); - }); - } - - return resultingFirstChild; - } - - function reconcileChildrenIterator( - returnFiber, - currentFirstChild, - newChildrenIterable, - expirationTime - ) { - // This is the same implementation as reconcileChildrenArray(), - // but using the iterator instead. - - var iteratorFn = getIteratorFn(newChildrenIterable); - invariant( - typeof iteratorFn === "function", - "An object is not an iterable. This error is likely caused by a bug in " + - "React. Please file an issue." - ); - - { - // Warn about using Maps as children - if (typeof newChildrenIterable.entries === "function") { - var possibleMap = newChildrenIterable; - if (possibleMap.entries === iteratorFn) { - warning( - didWarnAboutMaps, - "Using Maps as children is unsupported and will likely yield " + - "unexpected results. Convert it to a sequence/iterable of keyed " + - "ReactElements instead.%s", - getCurrentFiberStackAddendum$1() - ); - didWarnAboutMaps = true; - } - } - - // First, validate keys. - // We'll get a different iterator later for the main pass. - var _newChildren = iteratorFn.call(newChildrenIterable); - if (_newChildren) { - var knownKeys = null; - var _step = _newChildren.next(); - for (; !_step.done; _step = _newChildren.next()) { - var child = _step.value; - knownKeys = warnOnInvalidKey(child, knownKeys); - } - } - } - - var newChildren = iteratorFn.call(newChildrenIterable); - invariant(newChildren != null, "An iterable object provided no iterator."); - - var resultingFirstChild = null; - var previousNewFiber = null; - - var oldFiber = currentFirstChild; - var lastPlacedIndex = 0; - var newIdx = 0; - var nextOldFiber = null; - - var step = newChildren.next(); - for ( - ; - oldFiber !== null && !step.done; - newIdx++, step = newChildren.next() - ) { - if (oldFiber.index > newIdx) { - nextOldFiber = oldFiber; - oldFiber = null; - } else { - nextOldFiber = oldFiber.sibling; - } - var newFiber = updateSlot( - returnFiber, - oldFiber, - step.value, - expirationTime - ); - if (newFiber === null) { - // TODO: This breaks on empty slots like null children. That's - // unfortunate because it triggers the slow path all the time. We need - // a better way to communicate whether this was a miss or null, - // boolean, undefined, etc. - if (!oldFiber) { - oldFiber = nextOldFiber; - } - break; - } - if (shouldTrackSideEffects) { - if (oldFiber && newFiber.alternate === null) { - // We matched the slot, but we didn't reuse the existing fiber, so we - // need to delete the existing child. - deleteChild(returnFiber, oldFiber); - } - } - lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = newFiber; - } else { - // TODO: Defer siblings if we're not at the right index for this slot. - // I.e. if we had null values before, then we want to defer this - // for each null value. However, we also don't want to call updateSlot - // with the previous one. - previousNewFiber.sibling = newFiber; - } - previousNewFiber = newFiber; - oldFiber = nextOldFiber; - } - - if (step.done) { - // We've reached the end of the new children. We can delete the rest. - deleteRemainingChildren(returnFiber, oldFiber); - return resultingFirstChild; - } - - if (oldFiber === null) { - // If we don't have any more existing children we can choose a fast path - // since the rest will all be insertions. - for (; !step.done; newIdx++, step = newChildren.next()) { - var _newFiber3 = createChild(returnFiber, step.value, expirationTime); - if (_newFiber3 === null) { - continue; - } - lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx); - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = _newFiber3; - } else { - previousNewFiber.sibling = _newFiber3; - } - previousNewFiber = _newFiber3; - } - return resultingFirstChild; - } - - // Add all children to a key map for quick lookups. - var existingChildren = mapRemainingChildren(returnFiber, oldFiber); - - // Keep scanning and use the map to restore deleted items as moves. - for (; !step.done; newIdx++, step = newChildren.next()) { - var _newFiber4 = updateFromMap( - existingChildren, - returnFiber, - newIdx, - step.value, - expirationTime - ); - if (_newFiber4 !== null) { - if (shouldTrackSideEffects) { - if (_newFiber4.alternate !== null) { - // The new fiber is a work in progress, but if there exists a - // current, that means that we reused the fiber. We need to delete - // it from the child list so that we don't add it to the deletion - // list. - existingChildren["delete"]( - _newFiber4.key === null ? newIdx : _newFiber4.key - ); - } - } - lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx); - if (previousNewFiber === null) { - resultingFirstChild = _newFiber4; - } else { - previousNewFiber.sibling = _newFiber4; - } - previousNewFiber = _newFiber4; - } - } - - if (shouldTrackSideEffects) { - // Any existing children that weren't consumed above were deleted. We need - // to add them to the deletion list. - existingChildren.forEach(function(child) { - return deleteChild(returnFiber, child); - }); - } - - return resultingFirstChild; - } - - function reconcileSingleTextNode( - returnFiber, - currentFirstChild, - textContent, - expirationTime - ) { - // There's no need to check for keys on text nodes since we don't have a - // way to define them. - if (currentFirstChild !== null && currentFirstChild.tag === HostText) { - // We already have an existing node so let's just update it and delete - // the rest. - deleteRemainingChildren(returnFiber, currentFirstChild.sibling); - var existing = useFiber(currentFirstChild, textContent, expirationTime); - existing["return"] = returnFiber; - return existing; - } - // The existing first child is not a text node so we need to create one - // and delete the existing ones. - deleteRemainingChildren(returnFiber, currentFirstChild); - var created = createFiberFromText( - textContent, - returnFiber.internalContextTag, - expirationTime - ); - created["return"] = returnFiber; - return created; - } - - function reconcileSingleElement( - returnFiber, - currentFirstChild, - element, - expirationTime - ) { - var key = element.key; - var child = currentFirstChild; - while (child !== null) { - // TODO: If key === null and child.key === null, then this only applies to - // the first item in the list. - if (child.key === key) { - if ( - child.tag === Fragment - ? element.type === REACT_FRAGMENT_TYPE - : child.type === element.type - ) { - deleteRemainingChildren(returnFiber, child.sibling); - var existing = useFiber( - child, - element.type === REACT_FRAGMENT_TYPE - ? element.props.children - : element.props, - expirationTime - ); - existing.ref = coerceRef(child, element); - existing["return"] = returnFiber; - { - existing._debugSource = element._source; - existing._debugOwner = element._owner; - } - return existing; - } else { - deleteRemainingChildren(returnFiber, child); - break; - } - } else { - deleteChild(returnFiber, child); - } - child = child.sibling; - } - - if (element.type === REACT_FRAGMENT_TYPE) { - var created = createFiberFromFragment( - element.props.children, - returnFiber.internalContextTag, - expirationTime, - element.key - ); - created["return"] = returnFiber; - return created; - } else { - var _created7 = createFiberFromElement( - element, - returnFiber.internalContextTag, - expirationTime - ); - _created7.ref = coerceRef(currentFirstChild, element); - _created7["return"] = returnFiber; - return _created7; - } - } - - function reconcileSingleCall( - returnFiber, - currentFirstChild, - call, - expirationTime - ) { - var key = call.key; - var child = currentFirstChild; - while (child !== null) { - // TODO: If key === null and child.key === null, then this only applies to - // the first item in the list. - if (child.key === key) { - if (child.tag === CallComponent) { - deleteRemainingChildren(returnFiber, child.sibling); - var existing = useFiber(child, call, expirationTime); - existing["return"] = returnFiber; - return existing; - } else { - deleteRemainingChildren(returnFiber, child); - break; - } - } else { - deleteChild(returnFiber, child); - } - child = child.sibling; - } - - var created = createFiberFromCall( - call, - returnFiber.internalContextTag, - expirationTime - ); - created["return"] = returnFiber; - return created; - } - - function reconcileSingleReturn( - returnFiber, - currentFirstChild, - returnNode, - expirationTime - ) { - // There's no need to check for keys on yields since they're stateless. - var child = currentFirstChild; - if (child !== null) { - if (child.tag === ReturnComponent) { - deleteRemainingChildren(returnFiber, child.sibling); - var existing = useFiber(child, null, expirationTime); - existing.type = returnNode.value; - existing["return"] = returnFiber; - return existing; - } else { - deleteRemainingChildren(returnFiber, child); - } - } - - var created = createFiberFromReturn( - returnNode, - returnFiber.internalContextTag, - expirationTime - ); - created.type = returnNode.value; - created["return"] = returnFiber; - return created; - } - - function reconcileSinglePortal( - returnFiber, - currentFirstChild, - portal, - expirationTime - ) { - var key = portal.key; - var child = currentFirstChild; - while (child !== null) { - // TODO: If key === null and child.key === null, then this only applies to - // the first item in the list. - if (child.key === key) { - if ( - child.tag === HostPortal && - child.stateNode.containerInfo === portal.containerInfo && - child.stateNode.implementation === portal.implementation - ) { - deleteRemainingChildren(returnFiber, child.sibling); - var existing = useFiber(child, portal.children || [], expirationTime); - existing["return"] = returnFiber; - return existing; - } else { - deleteRemainingChildren(returnFiber, child); - break; - } - } else { - deleteChild(returnFiber, child); - } - child = child.sibling; - } - - var created = createFiberFromPortal( - portal, - returnFiber.internalContextTag, - expirationTime - ); - created["return"] = returnFiber; - return created; - } - - // This API will tag the children with the side-effect of the reconciliation - // itself. They will be added to the side-effect list as we pass through the - // children and the parent. - function reconcileChildFibers( - returnFiber, - currentFirstChild, - newChild, - expirationTime - ) { - // This function is not recursive. - // If the top level item is an array, we treat it as a set of children, - // not as a fragment. Nested arrays on the other hand will be treated as - // fragment nodes. Recursion happens at the normal flow. - - // Handle top level unkeyed fragments as if they were arrays. - // This leads to an ambiguity between <>{[...]} and <>.... - // We treat the ambiguous cases above the same. - if ( - typeof newChild === "object" && - newChild !== null && - newChild.type === REACT_FRAGMENT_TYPE && - newChild.key === null - ) { - newChild = newChild.props.children; - } - - // Handle object types - var isObject = typeof newChild === "object" && newChild !== null; - - if (isObject) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: - return placeSingleChild( - reconcileSingleElement( - returnFiber, - currentFirstChild, - newChild, - expirationTime - ) - ); - - case REACT_CALL_TYPE: - return placeSingleChild( - reconcileSingleCall( - returnFiber, - currentFirstChild, - newChild, - expirationTime - ) - ); - case REACT_RETURN_TYPE: - return placeSingleChild( - reconcileSingleReturn( - returnFiber, - currentFirstChild, - newChild, - expirationTime - ) - ); - case REACT_PORTAL_TYPE: - return placeSingleChild( - reconcileSinglePortal( - returnFiber, - currentFirstChild, - newChild, - expirationTime - ) - ); - } - } - - if (typeof newChild === "string" || typeof newChild === "number") { - return placeSingleChild( - reconcileSingleTextNode( - returnFiber, - currentFirstChild, - "" + newChild, - expirationTime - ) - ); - } - - if (isArray$1(newChild)) { - return reconcileChildrenArray( - returnFiber, - currentFirstChild, - newChild, - expirationTime - ); - } - - if (getIteratorFn(newChild)) { - return reconcileChildrenIterator( - returnFiber, - currentFirstChild, - newChild, - expirationTime - ); - } - - if (isObject) { - throwOnInvalidObjectType(returnFiber, newChild); - } - - { - if (typeof newChild === "function") { - warnOnFunctionType(); - } - } - if (typeof newChild === "undefined") { - // If the new child is undefined, and the return fiber is a composite - // component, throw an error. If Fiber return types are disabled, - // we already threw above. - switch (returnFiber.tag) { - case ClassComponent: { - { - var instance = returnFiber.stateNode; - if (instance.render._isMockFunction) { - // We allow auto-mocks to proceed as if they're returning null. - break; - } - } - } - // Intentionally fall through to the next case, which handles both - // functions and classes - // eslint-disable-next-lined no-fallthrough - case FunctionalComponent: { - var Component = returnFiber.type; - invariant( - false, - "%s(...): Nothing was returned from render. This usually means a " + - "return statement is missing. Or, to render nothing, " + - "return null.", - Component.displayName || Component.name || "Component" - ); - } - } - } - - // Remaining cases are all treated as empty. - return deleteRemainingChildren(returnFiber, currentFirstChild); - } - - return reconcileChildFibers; -} - -var reconcileChildFibers = ChildReconciler(true); -var mountChildFibers = ChildReconciler(false); - -function cloneChildFibers(current, workInProgress) { - invariant( - current === null || workInProgress.child === current.child, - "Resuming work not yet implemented." - ); - - if (workInProgress.child === null) { - return; - } - - var currentChild = workInProgress.child; - var newChild = createWorkInProgress( - currentChild, - currentChild.pendingProps, - currentChild.expirationTime - ); - workInProgress.child = newChild; - - newChild["return"] = workInProgress; - while (currentChild.sibling !== null) { - currentChild = currentChild.sibling; - newChild = newChild.sibling = createWorkInProgress( - currentChild, - currentChild.pendingProps, - currentChild.expirationTime - ); - newChild["return"] = workInProgress; - } - newChild.sibling = null; -} - -{ - var warnedAboutStatelessRefs = {}; -} - -var ReactFiberBeginWork = function( - config, - hostContext, - hydrationContext, - scheduleWork, - computeExpirationForFiber -) { - var shouldSetTextContent = config.shouldSetTextContent, - useSyncScheduling = config.useSyncScheduling, - shouldDeprioritizeSubtree = config.shouldDeprioritizeSubtree; - var pushHostContext = hostContext.pushHostContext, - pushHostContainer = hostContext.pushHostContainer; - var enterHydrationState = hydrationContext.enterHydrationState, - resetHydrationState = hydrationContext.resetHydrationState, - tryToClaimNextHydratableInstance = - hydrationContext.tryToClaimNextHydratableInstance; - - var _ReactFiberClassCompo = ReactFiberClassComponent( - scheduleWork, - computeExpirationForFiber, - memoizeProps, - memoizeState - ), - adoptClassInstance = _ReactFiberClassCompo.adoptClassInstance, - constructClassInstance = _ReactFiberClassCompo.constructClassInstance, - mountClassInstance = _ReactFiberClassCompo.mountClassInstance, - updateClassInstance = _ReactFiberClassCompo.updateClassInstance; - - // TODO: Remove this and use reconcileChildrenAtExpirationTime directly. - - function reconcileChildren(current, workInProgress, nextChildren) { - reconcileChildrenAtExpirationTime( - current, - workInProgress, - nextChildren, - workInProgress.expirationTime - ); - } - - function reconcileChildrenAtExpirationTime( - current, - workInProgress, - nextChildren, - renderExpirationTime - ) { - if (current === null) { - // If this is a fresh new component that hasn't been rendered yet, we - // won't update its child set by applying minimal side-effects. Instead, - // we will add them all to the child before it gets rendered. That means - // we can optimize this reconciliation pass by not tracking side-effects. - workInProgress.child = mountChildFibers( - workInProgress, - null, - nextChildren, - renderExpirationTime - ); - } else { - // If the current child is the same as the work in progress, it means that - // we haven't yet started any work on these children. Therefore, we use - // the clone algorithm to create a copy of all the current children. - - // If we had any progressed work already, that is invalid at this point so - // let's throw it out. - workInProgress.child = reconcileChildFibers( - workInProgress, - current.child, - nextChildren, - renderExpirationTime - ); - } - } - - function updateFragment(current, workInProgress) { - var nextChildren = workInProgress.pendingProps; - if (hasContextChanged()) { - // Normally we can bail out on props equality but if context has changed - // we don't do the bailout and we have to reuse existing props instead. - } else if ( - nextChildren === null || - workInProgress.memoizedProps === nextChildren - ) { - return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - reconcileChildren(current, workInProgress, nextChildren); - memoizeProps(workInProgress, nextChildren); - return workInProgress.child; - } - - function markRef(current, workInProgress) { - var ref = workInProgress.ref; - if (ref !== null && (!current || current.ref !== ref)) { - // Schedule a Ref effect - workInProgress.effectTag |= Ref; - } - } - - function updateFunctionalComponent(current, workInProgress) { - var fn = workInProgress.type; - var nextProps = workInProgress.pendingProps; - - if (hasContextChanged()) { - // Normally we can bail out on props equality but if context has changed - // we don't do the bailout and we have to reuse existing props instead. - } else { - if (workInProgress.memoizedProps === nextProps) { - return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - // TODO: consider bringing fn.shouldComponentUpdate() back. - // It used to be here. - } - - var unmaskedContext = getUnmaskedContext(workInProgress); - var context = getMaskedContext(workInProgress, unmaskedContext); - - var nextChildren; - - { - ReactCurrentOwner.current = workInProgress; - ReactDebugCurrentFiber.setCurrentPhase("render"); - nextChildren = fn(nextProps, context); - ReactDebugCurrentFiber.setCurrentPhase(null); - } - // React DevTools reads this flag. - workInProgress.effectTag |= PerformedWork; - reconcileChildren(current, workInProgress, nextChildren); - memoizeProps(workInProgress, nextProps); - return workInProgress.child; - } - - function updateClassComponent(current, workInProgress, renderExpirationTime) { - // Push context providers early to prevent context stack mismatches. - // During mounting we don't know the child context yet as the instance doesn't exist. - // We will invalidate the child context in finishClassComponent() right after rendering. - var hasContext = pushContextProvider(workInProgress); - - var shouldUpdate = void 0; - if (current === null) { - if (!workInProgress.stateNode) { - // In the initial pass we might need to construct the instance. - constructClassInstance(workInProgress, workInProgress.pendingProps); - mountClassInstance(workInProgress, renderExpirationTime); - shouldUpdate = true; - } else { - invariant(false, "Resuming work not yet implemented."); - // In a resume, we'll already have an instance we can reuse. - // shouldUpdate = resumeMountClassInstance(workInProgress, renderExpirationTime); - } - } else { - shouldUpdate = updateClassInstance( - current, - workInProgress, - renderExpirationTime - ); - } - return finishClassComponent( - current, - workInProgress, - shouldUpdate, - hasContext - ); - } - - function finishClassComponent( - current, - workInProgress, - shouldUpdate, - hasContext - ) { - // Refs should update even if shouldComponentUpdate returns false - markRef(current, workInProgress); - - if (!shouldUpdate) { - // Context providers should defer to sCU for rendering - if (hasContext) { - invalidateContextProvider(workInProgress, false); - } - - return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - - var instance = workInProgress.stateNode; - - // Rerender - ReactCurrentOwner.current = workInProgress; - var nextChildren = void 0; - { - ReactDebugCurrentFiber.setCurrentPhase("render"); - nextChildren = instance.render(); - if (debugRenderPhaseSideEffects) { - instance.render(); - } - ReactDebugCurrentFiber.setCurrentPhase(null); - } - // React DevTools reads this flag. - workInProgress.effectTag |= PerformedWork; - reconcileChildren(current, workInProgress, nextChildren); - // Memoize props and state using the values we just used to render. - // TODO: Restructure so we never read values from the instance. - memoizeState(workInProgress, instance.state); - memoizeProps(workInProgress, instance.props); - - // The context might have changed so we need to recalculate it. - if (hasContext) { - invalidateContextProvider(workInProgress, true); - } - - return workInProgress.child; - } - - function pushHostRootContext(workInProgress) { - var root = workInProgress.stateNode; - if (root.pendingContext) { - pushTopLevelContextObject( - workInProgress, - root.pendingContext, - root.pendingContext !== root.context - ); - } else if (root.context) { - // Should always be set - pushTopLevelContextObject(workInProgress, root.context, false); - } - pushHostContainer(workInProgress, root.containerInfo); - } - - function updateHostRoot(current, workInProgress, renderExpirationTime) { - pushHostRootContext(workInProgress); - var updateQueue = workInProgress.updateQueue; - if (updateQueue !== null) { - var prevState = workInProgress.memoizedState; - var state = processUpdateQueue( - current, - workInProgress, - updateQueue, - null, - null, - renderExpirationTime - ); - if (prevState === state) { - // If the state is the same as before, that's a bailout because we had - // no work that expires at this time. - resetHydrationState(); - return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - var element = state.element; - var root = workInProgress.stateNode; - if ( - (current === null || current.child === null) && - root.hydrate && - enterHydrationState(workInProgress) - ) { - // If we don't have any current children this might be the first pass. - // We always try to hydrate. If this isn't a hydration pass there won't - // be any children to hydrate which is effectively the same thing as - // not hydrating. - - // This is a bit of a hack. We track the host root as a placement to - // know that we're currently in a mounting state. That way isMounted - // works as expected. We must reset this before committing. - // TODO: Delete this when we delete isMounted and findDOMNode. - workInProgress.effectTag |= Placement; - - // Ensure that children mount into this root without tracking - // side-effects. This ensures that we don't store Placement effects on - // nodes that will be hydrated. - workInProgress.child = mountChildFibers( - workInProgress, - null, - element, - renderExpirationTime - ); - } else { - // Otherwise reset hydration state in case we aborted and resumed another - // root. - resetHydrationState(); - reconcileChildren(current, workInProgress, element); - } - memoizeState(workInProgress, state); - return workInProgress.child; - } - resetHydrationState(); - // If there is no update queue, that's a bailout because the root has no props. - return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - - function updateHostComponent(current, workInProgress, renderExpirationTime) { - pushHostContext(workInProgress); - - if (current === null) { - tryToClaimNextHydratableInstance(workInProgress); - } - - var type = workInProgress.type; - var memoizedProps = workInProgress.memoizedProps; - var nextProps = workInProgress.pendingProps; - var prevProps = current !== null ? current.memoizedProps : null; - - if (hasContextChanged()) { - // Normally we can bail out on props equality but if context has changed - // we don't do the bailout and we have to reuse existing props instead. - } else if (memoizedProps === nextProps) { - return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - - var nextChildren = nextProps.children; - var isDirectTextChild = shouldSetTextContent(type, nextProps); - - if (isDirectTextChild) { - // We special case a direct text child of a host node. This is a common - // case. We won't handle it as a reified child. We will instead handle - // this in the host environment that also have access to this prop. That - // avoids allocating another HostText fiber and traversing it. - nextChildren = null; - } else if (prevProps && shouldSetTextContent(type, prevProps)) { - // If we're switching from a direct text child to a normal child, or to - // empty, we need to schedule the text content to be reset. - workInProgress.effectTag |= ContentReset; - } - - markRef(current, workInProgress); - - // Check the host config to see if the children are offscreen/hidden. - if ( - renderExpirationTime !== Never && - !useSyncScheduling && - shouldDeprioritizeSubtree(type, nextProps) - ) { - // Down-prioritize the children. - workInProgress.expirationTime = Never; - // Bailout and come back to this fiber later. - return null; - } - - reconcileChildren(current, workInProgress, nextChildren); - memoizeProps(workInProgress, nextProps); - return workInProgress.child; - } - - function updateHostText(current, workInProgress) { - if (current === null) { - tryToClaimNextHydratableInstance(workInProgress); - } - var nextProps = workInProgress.pendingProps; - memoizeProps(workInProgress, nextProps); - // Nothing to do here. This is terminal. We'll do the completion step - // immediately after. - return null; - } - - function mountIndeterminateComponent( - current, - workInProgress, - renderExpirationTime - ) { - invariant( - current === null, - "An indeterminate component should never have mounted. This error is " + - "likely caused by a bug in React. Please file an issue." - ); - var fn = workInProgress.type; - var props = workInProgress.pendingProps; - var unmaskedContext = getUnmaskedContext(workInProgress); - var context = getMaskedContext(workInProgress, unmaskedContext); - - var value; - - { - if (fn.prototype && typeof fn.prototype.render === "function") { - var componentName = getComponentName(workInProgress); - warning( - false, - "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + - "This is likely to cause errors. Change %s to extend React.Component instead.", - componentName, - componentName - ); - } - ReactCurrentOwner.current = workInProgress; - value = fn(props, context); - } - // React DevTools reads this flag. - workInProgress.effectTag |= PerformedWork; - - if ( - typeof value === "object" && - value !== null && - typeof value.render === "function" - ) { - // Proceed under the assumption that this is a class instance - workInProgress.tag = ClassComponent; - - // Push context providers early to prevent context stack mismatches. - // During mounting we don't know the child context yet as the instance doesn't exist. - // We will invalidate the child context in finishClassComponent() right after rendering. - var hasContext = pushContextProvider(workInProgress); - adoptClassInstance(workInProgress, value); - mountClassInstance(workInProgress, renderExpirationTime); - return finishClassComponent(current, workInProgress, true, hasContext); - } else { - // Proceed under the assumption that this is a functional component - workInProgress.tag = FunctionalComponent; - { - var Component = workInProgress.type; - - if (Component) { - warning( - !Component.childContextTypes, - "%s(...): childContextTypes cannot be defined on a functional component.", - Component.displayName || Component.name || "Component" - ); - } - if (workInProgress.ref !== null) { - var info = ""; - var ownerName = ReactDebugCurrentFiber.getCurrentFiberOwnerName(); - if (ownerName) { - info += "\n\nCheck the render method of `" + ownerName + "`."; - } - - var warningKey = ownerName || workInProgress._debugID || ""; - var debugSource = workInProgress._debugSource; - if (debugSource) { - warningKey = debugSource.fileName + ":" + debugSource.lineNumber; - } - if (!warnedAboutStatelessRefs[warningKey]) { - warnedAboutStatelessRefs[warningKey] = true; - warning( - false, - "Stateless function components cannot be given refs. " + - "Attempts to access this ref will fail.%s%s", - info, - ReactDebugCurrentFiber.getCurrentFiberStackAddendum() - ); - } - } - } - reconcileChildren(current, workInProgress, value); - memoizeProps(workInProgress, props); - return workInProgress.child; - } - } - - function updateCallComponent(current, workInProgress, renderExpirationTime) { - var nextCall = workInProgress.pendingProps; - if (hasContextChanged()) { - // Normally we can bail out on props equality but if context has changed - // we don't do the bailout and we have to reuse existing props instead. - } else if (workInProgress.memoizedProps === nextCall) { - nextCall = workInProgress.memoizedProps; - // TODO: When bailing out, we might need to return the stateNode instead - // of the child. To check it for work. - // return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - - var nextChildren = nextCall.children; - - // The following is a fork of reconcileChildrenAtExpirationTime but using - // stateNode to store the child. - if (current === null) { - workInProgress.stateNode = mountChildFibers( - workInProgress, - workInProgress.stateNode, - nextChildren, - renderExpirationTime - ); - } else { - workInProgress.stateNode = reconcileChildFibers( - workInProgress, - workInProgress.stateNode, - nextChildren, - renderExpirationTime - ); - } - - memoizeProps(workInProgress, nextCall); - // This doesn't take arbitrary time so we could synchronously just begin - // eagerly do the work of workInProgress.child as an optimization. - return workInProgress.stateNode; - } - - function updatePortalComponent( - current, - workInProgress, - renderExpirationTime - ) { - pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo); - var nextChildren = workInProgress.pendingProps; - if (hasContextChanged()) { - // Normally we can bail out on props equality but if context has changed - // we don't do the bailout and we have to reuse existing props instead. - } else if (workInProgress.memoizedProps === nextChildren) { - return bailoutOnAlreadyFinishedWork(current, workInProgress); - } - - if (current === null) { - // Portals are special because we don't append the children during mount - // but at commit. Therefore we need to track insertions which the normal - // flow doesn't do during mount. This doesn't happen at the root because - // the root always starts with a "current" with a null child. - // TODO: Consider unifying this with how the root works. - workInProgress.child = reconcileChildFibers( - workInProgress, - null, - nextChildren, - renderExpirationTime - ); - memoizeProps(workInProgress, nextChildren); - } else { - reconcileChildren(current, workInProgress, nextChildren); - memoizeProps(workInProgress, nextChildren); - } - return workInProgress.child; - } - - /* - function reuseChildrenEffects(returnFiber : Fiber, firstChild : Fiber) { - let child = firstChild; - do { - // Ensure that the first and last effect of the parent corresponds - // to the children's first and last effect. - if (!returnFiber.firstEffect) { - returnFiber.firstEffect = child.firstEffect; - } - if (child.lastEffect) { - if (returnFiber.lastEffect) { - returnFiber.lastEffect.nextEffect = child.firstEffect; - } - returnFiber.lastEffect = child.lastEffect; - } - } while (child = child.sibling); - } - */ - - function bailoutOnAlreadyFinishedWork(current, workInProgress) { - cancelWorkTimer(workInProgress); - - // TODO: We should ideally be able to bail out early if the children have no - // more work to do. However, since we don't have a separation of this - // Fiber's priority and its children yet - we don't know without doing lots - // of the same work we do anyway. Once we have that separation we can just - // bail out here if the children has no more work at this priority level. - // if (workInProgress.priorityOfChildren <= priorityLevel) { - // // If there are side-effects in these children that have not yet been - // // committed we need to ensure that they get properly transferred up. - // if (current && current.child !== workInProgress.child) { - // reuseChildrenEffects(workInProgress, child); - // } - // return null; - // } - - cloneChildFibers(current, workInProgress); - return workInProgress.child; - } - - function bailoutOnLowPriority(current, workInProgress) { - cancelWorkTimer(workInProgress); - - // TODO: Handle HostComponent tags here as well and call pushHostContext()? - // See PR 8590 discussion for context - switch (workInProgress.tag) { - case HostRoot: - pushHostRootContext(workInProgress); - break; - case ClassComponent: - pushContextProvider(workInProgress); - break; - case HostPortal: - pushHostContainer( - workInProgress, - workInProgress.stateNode.containerInfo - ); - break; - } - // TODO: What if this is currently in progress? - // How can that happen? How is this not being cloned? - return null; - } - - // TODO: Delete memoizeProps/State and move to reconcile/bailout instead - function memoizeProps(workInProgress, nextProps) { - workInProgress.memoizedProps = nextProps; - } - - function memoizeState(workInProgress, nextState) { - workInProgress.memoizedState = nextState; - // Don't reset the updateQueue, in case there are pending updates. Resetting - // is handled by processUpdateQueue. - } - - function beginWork(current, workInProgress, renderExpirationTime) { - if ( - workInProgress.expirationTime === NoWork || - workInProgress.expirationTime > renderExpirationTime - ) { - return bailoutOnLowPriority(current, workInProgress); - } - - switch (workInProgress.tag) { - case IndeterminateComponent: - return mountIndeterminateComponent( - current, - workInProgress, - renderExpirationTime - ); - case FunctionalComponent: - return updateFunctionalComponent(current, workInProgress); - case ClassComponent: - return updateClassComponent( - current, - workInProgress, - renderExpirationTime - ); - case HostRoot: - return updateHostRoot(current, workInProgress, renderExpirationTime); - case HostComponent: - return updateHostComponent( - current, - workInProgress, - renderExpirationTime - ); - case HostText: - return updateHostText(current, workInProgress); - case CallHandlerPhase: - // This is a restart. Reset the tag to the initial phase. - workInProgress.tag = CallComponent; - // Intentionally fall through since this is now the same. - case CallComponent: - return updateCallComponent( - current, - workInProgress, - renderExpirationTime - ); - case ReturnComponent: - // A return component is just a placeholder, we can just run through the - // next one immediately. - return null; - case HostPortal: - return updatePortalComponent( - current, - workInProgress, - renderExpirationTime - ); - case Fragment: - return updateFragment(current, workInProgress); - default: - invariant( - false, - "Unknown unit of work tag. This error is likely caused by a bug in " + - "React. Please file an issue." - ); - } - } - - function beginFailedWork(current, workInProgress, renderExpirationTime) { - // Push context providers here to avoid a push/pop context mismatch. - switch (workInProgress.tag) { - case ClassComponent: - pushContextProvider(workInProgress); - break; - case HostRoot: - pushHostRootContext(workInProgress); - break; - default: - invariant( - false, - "Invalid type of work. This error is likely caused by a bug in React. " + - "Please file an issue." - ); - } - - // Add an error effect so we can handle the error during the commit phase - workInProgress.effectTag |= Err; - - // This is a weird case where we do "resume" work — work that failed on - // our first attempt. Because we no longer have a notion of "progressed - // deletions," reset the child to the current child to make sure we delete - // it again. TODO: Find a better way to handle this, perhaps during a more - // general overhaul of error handling. - if (current === null) { - workInProgress.child = null; - } else if (workInProgress.child !== current.child) { - workInProgress.child = current.child; - } - - if ( - workInProgress.expirationTime === NoWork || - workInProgress.expirationTime > renderExpirationTime - ) { - return bailoutOnLowPriority(current, workInProgress); - } - - // If we don't bail out, we're going be recomputing our children so we need - // to drop our effect list. - workInProgress.firstEffect = null; - workInProgress.lastEffect = null; - - // Unmount the current children as if the component rendered null - var nextChildren = null; - reconcileChildrenAtExpirationTime( - current, - workInProgress, - nextChildren, - renderExpirationTime - ); - - if (workInProgress.tag === ClassComponent) { - var instance = workInProgress.stateNode; - workInProgress.memoizedProps = instance.props; - workInProgress.memoizedState = instance.state; - } - - return workInProgress.child; - } - - return { - beginWork: beginWork, - beginFailedWork: beginFailedWork - }; -}; - -var ReactFiberCompleteWork = function(config, hostContext, hydrationContext) { - var createInstance = config.createInstance, - createTextInstance = config.createTextInstance, - appendInitialChild = config.appendInitialChild, - finalizeInitialChildren = config.finalizeInitialChildren, - prepareUpdate = config.prepareUpdate, - mutation = config.mutation, - persistence = config.persistence; - var getRootHostContainer = hostContext.getRootHostContainer, - popHostContext = hostContext.popHostContext, - getHostContext = hostContext.getHostContext, - popHostContainer = hostContext.popHostContainer; - var prepareToHydrateHostInstance = - hydrationContext.prepareToHydrateHostInstance, - prepareToHydrateHostTextInstance = - hydrationContext.prepareToHydrateHostTextInstance, - popHydrationState = hydrationContext.popHydrationState; - - function markUpdate(workInProgress) { - // Tag the fiber with an update effect. This turns a Placement into - // an UpdateAndPlacement. - workInProgress.effectTag |= Update; - } - - function markRef(workInProgress) { - workInProgress.effectTag |= Ref; - } - - function appendAllReturns(returns, workInProgress) { - var node = workInProgress.stateNode; - if (node) { - node["return"] = workInProgress; - } - while (node !== null) { - if ( - node.tag === HostComponent || - node.tag === HostText || - node.tag === HostPortal - ) { - invariant(false, "A call cannot have host component children."); - } else if (node.tag === ReturnComponent) { - returns.push(node.type); - } else if (node.child !== null) { - node.child["return"] = node; - node = node.child; - continue; - } - while (node.sibling === null) { - if (node["return"] === null || node["return"] === workInProgress) { - return; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - } - - function moveCallToHandlerPhase( - current, - workInProgress, - renderExpirationTime - ) { - var call = workInProgress.memoizedProps; - invariant( - call, - "Should be resolved by now. This error is likely caused by a bug in " + - "React. Please file an issue." - ); - - // First step of the call has completed. Now we need to do the second. - // TODO: It would be nice to have a multi stage call represented by a - // single component, or at least tail call optimize nested ones. Currently - // that requires additional fields that we don't want to add to the fiber. - // So this requires nested handlers. - // Note: This doesn't mutate the alternate node. I don't think it needs to - // since this stage is reset for every pass. - workInProgress.tag = CallHandlerPhase; - - // Build up the returns. - // TODO: Compare this to a generator or opaque helpers like Children. - var returns = []; - appendAllReturns(returns, workInProgress); - var fn = call.handler; - var props = call.props; - var nextChildren = fn(props, returns); - - var currentFirstChild = current !== null ? current.child : null; - workInProgress.child = reconcileChildFibers( - workInProgress, - currentFirstChild, - nextChildren, - renderExpirationTime - ); - return workInProgress.child; - } - - function appendAllChildren(parent, workInProgress) { - // We only have the top Fiber that was created but we need recurse down its - // children to find all the terminal nodes. - var node = workInProgress.child; - while (node !== null) { - if (node.tag === HostComponent || node.tag === HostText) { - appendInitialChild(parent, node.stateNode); - } else if (node.tag === HostPortal) { - // If we have a portal child, then we don't want to traverse - // down its children. Instead, we'll get insertions from each child in - // the portal directly. - } else if (node.child !== null) { - node.child["return"] = node; - node = node.child; - continue; - } - if (node === workInProgress) { - return; - } - while (node.sibling === null) { - if (node["return"] === null || node["return"] === workInProgress) { - return; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - } - - var updateHostContainer = void 0; - var updateHostComponent = void 0; - var updateHostText = void 0; - if (mutation) { - if (enableMutatingReconciler) { - // Mutation mode - updateHostContainer = function(workInProgress) { - // Noop - }; - updateHostComponent = function( - current, - workInProgress, - updatePayload, - type, - oldProps, - newProps, - rootContainerInstance - ) { - // TODO: Type this specific to this type of component. - workInProgress.updateQueue = updatePayload; - // If the update payload indicates that there is a change or if there - // is a new ref we mark this as an update. All the work is done in commitWork. - if (updatePayload) { - markUpdate(workInProgress); - } - }; - updateHostText = function(current, workInProgress, oldText, newText) { - // If the text differs, mark it as an update. All the work in done in commitWork. - if (oldText !== newText) { - markUpdate(workInProgress); - } - }; - } else { - invariant(false, "Mutating reconciler is disabled."); - } - } else if (persistence) { - if (enablePersistentReconciler) { - // Persistent host tree mode - var cloneInstance = persistence.cloneInstance, - createContainerChildSet = persistence.createContainerChildSet, - appendChildToContainerChildSet = - persistence.appendChildToContainerChildSet, - finalizeContainerChildren = persistence.finalizeContainerChildren; - - // An unfortunate fork of appendAllChildren because we have two different parent types. - - var appendAllChildrenToContainer = function( - containerChildSet, - workInProgress - ) { - // We only have the top Fiber that was created but we need recurse down its - // children to find all the terminal nodes. - var node = workInProgress.child; - while (node !== null) { - if (node.tag === HostComponent || node.tag === HostText) { - appendChildToContainerChildSet(containerChildSet, node.stateNode); - } else if (node.tag === HostPortal) { - // If we have a portal child, then we don't want to traverse - // down its children. Instead, we'll get insertions from each child in - // the portal directly. - } else if (node.child !== null) { - node.child["return"] = node; - node = node.child; - continue; - } - if (node === workInProgress) { - return; - } - while (node.sibling === null) { - if (node["return"] === null || node["return"] === workInProgress) { - return; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - }; - updateHostContainer = function(workInProgress) { - var portalOrRoot = workInProgress.stateNode; - var childrenUnchanged = workInProgress.firstEffect === null; - if (childrenUnchanged) { - // No changes, just reuse the existing instance. - } else { - var container = portalOrRoot.containerInfo; - var newChildSet = createContainerChildSet(container); - if (finalizeContainerChildren(container, newChildSet)) { - markUpdate(workInProgress); - } - portalOrRoot.pendingChildren = newChildSet; - // If children might have changed, we have to add them all to the set. - appendAllChildrenToContainer(newChildSet, workInProgress); - // Schedule an update on the container to swap out the container. - markUpdate(workInProgress); - } - }; - updateHostComponent = function( - current, - workInProgress, - updatePayload, - type, - oldProps, - newProps, - rootContainerInstance - ) { - // If there are no effects associated with this node, then none of our children had any updates. - // This guarantees that we can reuse all of them. - var childrenUnchanged = workInProgress.firstEffect === null; - var currentInstance = current.stateNode; - if (childrenUnchanged && updatePayload === null) { - // No changes, just reuse the existing instance. - // Note that this might release a previous clone. - workInProgress.stateNode = currentInstance; - } else { - var recyclableInstance = workInProgress.stateNode; - var newInstance = cloneInstance( - currentInstance, - updatePayload, - type, - oldProps, - newProps, - workInProgress, - childrenUnchanged, - recyclableInstance - ); - if ( - finalizeInitialChildren( - newInstance, - type, - newProps, - rootContainerInstance - ) - ) { - markUpdate(workInProgress); - } - workInProgress.stateNode = newInstance; - if (childrenUnchanged) { - // If there are no other effects in this tree, we need to flag this node as having one. - // Even though we're not going to use it for anything. - // Otherwise parents won't know that there are new children to propagate upwards. - markUpdate(workInProgress); - } else { - // If children might have changed, we have to add them all to the set. - appendAllChildren(newInstance, workInProgress); - } - } - }; - updateHostText = function(current, workInProgress, oldText, newText) { - if (oldText !== newText) { - // If the text content differs, we'll create a new text instance for it. - var rootContainerInstance = getRootHostContainer(); - var currentHostContext = getHostContext(); - workInProgress.stateNode = createTextInstance( - newText, - rootContainerInstance, - currentHostContext, - workInProgress - ); - // We'll have to mark it as having an effect, even though we won't use the effect for anything. - // This lets the parents know that at least one of their children has changed. - markUpdate(workInProgress); - } - }; - } else { - invariant(false, "Persistent reconciler is disabled."); - } - } else { - if (enableNoopReconciler) { - // No host operations - updateHostContainer = function(workInProgress) { - // Noop - }; - updateHostComponent = function( - current, - workInProgress, - updatePayload, - type, - oldProps, - newProps, - rootContainerInstance - ) { - // Noop - }; - updateHostText = function(current, workInProgress, oldText, newText) { - // Noop - }; - } else { - invariant(false, "Noop reconciler is disabled."); - } - } - - function completeWork(current, workInProgress, renderExpirationTime) { - var newProps = workInProgress.pendingProps; - switch (workInProgress.tag) { - case FunctionalComponent: - return null; - case ClassComponent: { - // We are leaving this subtree, so pop context if any. - popContextProvider(workInProgress); - return null; - } - case HostRoot: { - popHostContainer(workInProgress); - popTopLevelContextObject(workInProgress); - var fiberRoot = workInProgress.stateNode; - if (fiberRoot.pendingContext) { - fiberRoot.context = fiberRoot.pendingContext; - fiberRoot.pendingContext = null; - } - - if (current === null || current.child === null) { - // If we hydrated, pop so that we can delete any remaining children - // that weren't hydrated. - popHydrationState(workInProgress); - // This resets the hacky state to fix isMounted before committing. - // TODO: Delete this when we delete isMounted and findDOMNode. - workInProgress.effectTag &= ~Placement; - } - updateHostContainer(workInProgress); - return null; - } - case HostComponent: { - popHostContext(workInProgress); - var rootContainerInstance = getRootHostContainer(); - var type = workInProgress.type; - if (current !== null && workInProgress.stateNode != null) { - // If we have an alternate, that means this is an update and we need to - // schedule a side-effect to do the updates. - var oldProps = current.memoizedProps; - // If we get updated because one of our children updated, we don't - // have newProps so we'll have to reuse them. - // TODO: Split the update API as separate for the props vs. children. - // Even better would be if children weren't special cased at all tho. - var instance = workInProgress.stateNode; - var currentHostContext = getHostContext(); - var updatePayload = prepareUpdate( - instance, - type, - oldProps, - newProps, - rootContainerInstance, - currentHostContext - ); - - updateHostComponent( - current, - workInProgress, - updatePayload, - type, - oldProps, - newProps, - rootContainerInstance - ); - - if (current.ref !== workInProgress.ref) { - markRef(workInProgress); - } - } else { - if (!newProps) { - invariant( - workInProgress.stateNode !== null, - "We must have new props for new mounts. This error is likely " + - "caused by a bug in React. Please file an issue." - ); - // This can happen when we abort work. - return null; - } - - var _currentHostContext = getHostContext(); - // TODO: Move createInstance to beginWork and keep it on a context - // "stack" as the parent. Then append children as we go in beginWork - // or completeWork depending on we want to add then top->down or - // bottom->up. Top->down is faster in IE11. - var wasHydrated = popHydrationState(workInProgress); - if (wasHydrated) { - // TODO: Move this and createInstance step into the beginPhase - // to consolidate. - if ( - prepareToHydrateHostInstance( - workInProgress, - rootContainerInstance, - _currentHostContext - ) - ) { - // If changes to the hydrated node needs to be applied at the - // commit-phase we mark this as such. - markUpdate(workInProgress); - } - } else { - var _instance = createInstance( - type, - newProps, - rootContainerInstance, - _currentHostContext, - workInProgress - ); - - appendAllChildren(_instance, workInProgress); - - // Certain renderers require commit-time effects for initial mount. - // (eg DOM renderer supports auto-focus for certain elements). - // Make sure such renderers get scheduled for later work. - if ( - finalizeInitialChildren( - _instance, - type, - newProps, - rootContainerInstance - ) - ) { - markUpdate(workInProgress); - } - workInProgress.stateNode = _instance; - } - - if (workInProgress.ref !== null) { - // If there is a ref on a host node we need to schedule a callback - markRef(workInProgress); - } - } - return null; - } - case HostText: { - var newText = newProps; - if (current && workInProgress.stateNode != null) { - var oldText = current.memoizedProps; - // If we have an alternate, that means this is an update and we need - // to schedule a side-effect to do the updates. - updateHostText(current, workInProgress, oldText, newText); - } else { - if (typeof newText !== "string") { - invariant( - workInProgress.stateNode !== null, - "We must have new props for new mounts. This error is likely " + - "caused by a bug in React. Please file an issue." - ); - // This can happen when we abort work. - return null; - } - var _rootContainerInstance = getRootHostContainer(); - var _currentHostContext2 = getHostContext(); - var _wasHydrated = popHydrationState(workInProgress); - if (_wasHydrated) { - if (prepareToHydrateHostTextInstance(workInProgress)) { - markUpdate(workInProgress); - } - } else { - workInProgress.stateNode = createTextInstance( - newText, - _rootContainerInstance, - _currentHostContext2, - workInProgress - ); - } - } - return null; - } - case CallComponent: - return moveCallToHandlerPhase( - current, - workInProgress, - renderExpirationTime - ); - case CallHandlerPhase: - // Reset the tag to now be a first phase call. - workInProgress.tag = CallComponent; - return null; - case ReturnComponent: - // Does nothing. - return null; - case Fragment: - return null; - case HostPortal: - popHostContainer(workInProgress); - updateHostContainer(workInProgress); - return null; - // Error cases - case IndeterminateComponent: - invariant( - false, - "An indeterminate component should have become determinate before " + - "completing. This error is likely caused by a bug in React. Please " + - "file an issue." - ); - // eslint-disable-next-line no-fallthrough - default: - invariant( - false, - "Unknown unit of work tag. This error is likely caused by a bug in " + - "React. Please file an issue." - ); - } - } - - return { - completeWork: completeWork - }; -}; - -var invokeGuardedCallback$2 = ReactErrorUtils.invokeGuardedCallback; -var hasCaughtError$1 = ReactErrorUtils.hasCaughtError; -var clearCaughtError$1 = ReactErrorUtils.clearCaughtError; - -var ReactFiberCommitWork = function(config, captureError) { - var getPublicInstance = config.getPublicInstance, - mutation = config.mutation, - persistence = config.persistence; - - var callComponentWillUnmountWithTimer = function(current, instance) { - startPhaseTimer(current, "componentWillUnmount"); - instance.props = current.memoizedProps; - instance.state = current.memoizedState; - instance.componentWillUnmount(); - stopPhaseTimer(); - }; - - // Capture errors so they don't interrupt unmounting. - function safelyCallComponentWillUnmount(current, instance) { - { - invokeGuardedCallback$2( - null, - callComponentWillUnmountWithTimer, - null, - current, - instance - ); - if (hasCaughtError$1()) { - var unmountError = clearCaughtError$1(); - captureError(current, unmountError); - } - } - } - - function safelyDetachRef(current) { - var ref = current.ref; - if (ref !== null) { - { - invokeGuardedCallback$2(null, ref, null, null); - if (hasCaughtError$1()) { - var refError = clearCaughtError$1(); - captureError(current, refError); - } - } - } - } - - function commitLifeCycles(current, finishedWork) { - switch (finishedWork.tag) { - case ClassComponent: { - var instance = finishedWork.stateNode; - if (finishedWork.effectTag & Update) { - if (current === null) { - startPhaseTimer(finishedWork, "componentDidMount"); - instance.props = finishedWork.memoizedProps; - instance.state = finishedWork.memoizedState; - instance.componentDidMount(); - stopPhaseTimer(); - } else { - var prevProps = current.memoizedProps; - var prevState = current.memoizedState; - startPhaseTimer(finishedWork, "componentDidUpdate"); - instance.props = finishedWork.memoizedProps; - instance.state = finishedWork.memoizedState; - instance.componentDidUpdate(prevProps, prevState); - stopPhaseTimer(); - } - } - var updateQueue = finishedWork.updateQueue; - if (updateQueue !== null) { - commitCallbacks(updateQueue, instance); - } - return; - } - case HostRoot: { - var _updateQueue = finishedWork.updateQueue; - if (_updateQueue !== null) { - var _instance = - finishedWork.child !== null ? finishedWork.child.stateNode : null; - commitCallbacks(_updateQueue, _instance); - } - return; - } - case HostComponent: { - var _instance2 = finishedWork.stateNode; - - // Renderers may schedule work to be done after host components are mounted - // (eg DOM renderer may schedule auto-focus for inputs and form controls). - // These effects should only be committed when components are first mounted, - // aka when there is no current/alternate. - if (current === null && finishedWork.effectTag & Update) { - var type = finishedWork.type; - var props = finishedWork.memoizedProps; - commitMount(_instance2, type, props, finishedWork); - } - - return; - } - case HostText: { - // We have no life-cycles associated with text. - return; - } - case HostPortal: { - // We have no life-cycles associated with portals. - return; - } - default: { - invariant( - false, - "This unit of work tag should not have side-effects. This error is " + - "likely caused by a bug in React. Please file an issue." - ); - } - } - } - - function commitAttachRef(finishedWork) { - var ref = finishedWork.ref; - if (ref !== null) { - var instance = finishedWork.stateNode; - switch (finishedWork.tag) { - case HostComponent: - ref(getPublicInstance(instance)); - break; - default: - ref(instance); - } - } - } - - function commitDetachRef(current) { - var currentRef = current.ref; - if (currentRef !== null) { - currentRef(null); - } - } - - // User-originating errors (lifecycles and refs) should not interrupt - // deletion, so don't let them throw. Host-originating errors should - // interrupt deletion, so it's okay - function commitUnmount(current) { - if (typeof onCommitUnmount === "function") { - onCommitUnmount(current); - } - - switch (current.tag) { - case ClassComponent: { - safelyDetachRef(current); - var instance = current.stateNode; - if (typeof instance.componentWillUnmount === "function") { - safelyCallComponentWillUnmount(current, instance); - } - return; - } - case HostComponent: { - safelyDetachRef(current); - return; - } - case CallComponent: { - commitNestedUnmounts(current.stateNode); - return; - } - case HostPortal: { - // TODO: this is recursive. - // We are also not using this parent because - // the portal will get pushed immediately. - if (enableMutatingReconciler && mutation) { - unmountHostComponents(current); - } else if (enablePersistentReconciler && persistence) { - emptyPortalContainer(current); - } - return; - } - } - } - - function commitNestedUnmounts(root) { - // While we're inside a removed host node we don't want to call - // removeChild on the inner nodes because they're removed by the top - // call anyway. We also want to call componentWillUnmount on all - // composites before this host node is removed from the tree. Therefore - var node = root; - while (true) { - commitUnmount(node); - // Visit children because they may contain more composite or host nodes. - // Skip portals because commitUnmount() currently visits them recursively. - if ( - node.child !== null && - // If we use mutation we drill down into portals using commitUnmount above. - // If we don't use mutation we drill down into portals here instead. - (!mutation || node.tag !== HostPortal) - ) { - node.child["return"] = node; - node = node.child; - continue; - } - if (node === root) { - return; - } - while (node.sibling === null) { - if (node["return"] === null || node["return"] === root) { - return; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - } - - function detachFiber(current) { - // Cut off the return pointers to disconnect it from the tree. Ideally, we - // should clear the child pointer of the parent alternate to let this - // get GC:ed but we don't know which for sure which parent is the current - // one so we'll settle for GC:ing the subtree of this child. This child - // itself will be GC:ed when the parent updates the next time. - current["return"] = null; - current.child = null; - if (current.alternate) { - current.alternate.child = null; - current.alternate["return"] = null; - } - } - - if (!mutation) { - var commitContainer = void 0; - if (persistence) { - var replaceContainerChildren = persistence.replaceContainerChildren, - createContainerChildSet = persistence.createContainerChildSet; - - var emptyPortalContainer = function(current) { - var portal = current.stateNode; - var containerInfo = portal.containerInfo; - - var emptyChildSet = createContainerChildSet(containerInfo); - replaceContainerChildren(containerInfo, emptyChildSet); - }; - commitContainer = function(finishedWork) { - switch (finishedWork.tag) { - case ClassComponent: { - return; - } - case HostComponent: { - return; - } - case HostText: { - return; - } - case HostRoot: - case HostPortal: { - var portalOrRoot = finishedWork.stateNode; - var containerInfo = portalOrRoot.containerInfo, - _pendingChildren = portalOrRoot.pendingChildren; - - replaceContainerChildren(containerInfo, _pendingChildren); - return; - } - default: { - invariant( - false, - "This unit of work tag should not have side-effects. This error is " + - "likely caused by a bug in React. Please file an issue." - ); - } - } - }; - } else { - commitContainer = function(finishedWork) { - // Noop - }; - } - if (enablePersistentReconciler || enableNoopReconciler) { - return { - commitResetTextContent: function(finishedWork) {}, - commitPlacement: function(finishedWork) {}, - commitDeletion: function(current) { - // Detach refs and call componentWillUnmount() on the whole subtree. - commitNestedUnmounts(current); - detachFiber(current); - }, - commitWork: function(current, finishedWork) { - commitContainer(finishedWork); - }, - - commitLifeCycles: commitLifeCycles, - commitAttachRef: commitAttachRef, - commitDetachRef: commitDetachRef - }; - } else if (persistence) { - invariant(false, "Persistent reconciler is disabled."); - } else { - invariant(false, "Noop reconciler is disabled."); - } - } - var commitMount = mutation.commitMount, - commitUpdate = mutation.commitUpdate, - resetTextContent = mutation.resetTextContent, - commitTextUpdate = mutation.commitTextUpdate, - appendChild = mutation.appendChild, - appendChildToContainer = mutation.appendChildToContainer, - insertBefore = mutation.insertBefore, - insertInContainerBefore = mutation.insertInContainerBefore, - removeChild = mutation.removeChild, - removeChildFromContainer = mutation.removeChildFromContainer; - - function getHostParentFiber(fiber) { - var parent = fiber["return"]; - while (parent !== null) { - if (isHostParent(parent)) { - return parent; - } - parent = parent["return"]; - } - invariant( - false, - "Expected to find a host parent. This error is likely caused by a bug " + - "in React. Please file an issue." - ); - } - - function isHostParent(fiber) { - return ( - fiber.tag === HostComponent || - fiber.tag === HostRoot || - fiber.tag === HostPortal - ); - } - - function getHostSibling(fiber) { - // We're going to search forward into the tree until we find a sibling host - // node. Unfortunately, if multiple insertions are done in a row we have to - // search past them. This leads to exponential search for the next sibling. - var node = fiber; - siblings: while (true) { - // If we didn't find anything, let's try the next sibling. - while (node.sibling === null) { - if (node["return"] === null || isHostParent(node["return"])) { - // If we pop out of the root or hit the parent the fiber we are the - // last sibling. - return null; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - while (node.tag !== HostComponent && node.tag !== HostText) { - // If it is not host node and, we might have a host node inside it. - // Try to search down until we find one. - if (node.effectTag & Placement) { - // If we don't have a child, try the siblings instead. - continue siblings; - } - // If we don't have a child, try the siblings instead. - // We also skip portals because they are not part of this host tree. - if (node.child === null || node.tag === HostPortal) { - continue siblings; - } else { - node.child["return"] = node; - node = node.child; - } - } - // Check if this host node is stable or about to be placed. - if (!(node.effectTag & Placement)) { - // Found it! - return node.stateNode; - } - } - } - - function commitPlacement(finishedWork) { - // Recursively insert all host nodes into the parent. - var parentFiber = getHostParentFiber(finishedWork); - var parent = void 0; - var isContainer = void 0; - switch (parentFiber.tag) { - case HostComponent: - parent = parentFiber.stateNode; - isContainer = false; - break; - case HostRoot: - parent = parentFiber.stateNode.containerInfo; - isContainer = true; - break; - case HostPortal: - parent = parentFiber.stateNode.containerInfo; - isContainer = true; - break; - default: - invariant( - false, - "Invalid host parent fiber. This error is likely caused by a bug " + - "in React. Please file an issue." - ); - } - if (parentFiber.effectTag & ContentReset) { - // Reset the text content of the parent before doing any insertions - resetTextContent(parent); - // Clear ContentReset from the effect tag - parentFiber.effectTag &= ~ContentReset; - } - - var before = getHostSibling(finishedWork); - // We only have the top Fiber that was inserted but we need recurse down its - // children to find all the terminal nodes. - var node = finishedWork; - while (true) { - if (node.tag === HostComponent || node.tag === HostText) { - if (before) { - if (isContainer) { - insertInContainerBefore(parent, node.stateNode, before); - } else { - insertBefore(parent, node.stateNode, before); - } - } else { - if (isContainer) { - appendChildToContainer(parent, node.stateNode); - } else { - appendChild(parent, node.stateNode); - } - } - } else if (node.tag === HostPortal) { - // If the insertion itself is a portal, then we don't want to traverse - // down its children. Instead, we'll get insertions from each child in - // the portal directly. - } else if (node.child !== null) { - node.child["return"] = node; - node = node.child; - continue; - } - if (node === finishedWork) { - return; - } - while (node.sibling === null) { - if (node["return"] === null || node["return"] === finishedWork) { - return; - } - node = node["return"]; - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - } - - function unmountHostComponents(current) { - // We only have the top Fiber that was inserted but we need recurse down its - var node = current; - - // Each iteration, currentParent is populated with node's host parent if not - // currentParentIsValid. - var currentParentIsValid = false; - var currentParent = void 0; - var currentParentIsContainer = void 0; - - while (true) { - if (!currentParentIsValid) { - var parent = node["return"]; - findParent: while (true) { - invariant( - parent !== null, - "Expected to find a host parent. This error is likely caused by " + - "a bug in React. Please file an issue." - ); - switch (parent.tag) { - case HostComponent: - currentParent = parent.stateNode; - currentParentIsContainer = false; - break findParent; - case HostRoot: - currentParent = parent.stateNode.containerInfo; - currentParentIsContainer = true; - break findParent; - case HostPortal: - currentParent = parent.stateNode.containerInfo; - currentParentIsContainer = true; - break findParent; - } - parent = parent["return"]; - } - currentParentIsValid = true; - } - - if (node.tag === HostComponent || node.tag === HostText) { - commitNestedUnmounts(node); - // After all the children have unmounted, it is now safe to remove the - // node from the tree. - if (currentParentIsContainer) { - removeChildFromContainer(currentParent, node.stateNode); - } else { - removeChild(currentParent, node.stateNode); - } - // Don't visit children because we already visited them. - } else if (node.tag === HostPortal) { - // When we go into a portal, it becomes the parent to remove from. - // We will reassign it back when we pop the portal on the way up. - currentParent = node.stateNode.containerInfo; - // Visit children because portals might contain host components. - if (node.child !== null) { - node.child["return"] = node; - node = node.child; - continue; - } - } else { - commitUnmount(node); - // Visit children because we may find more host components below. - if (node.child !== null) { - node.child["return"] = node; - node = node.child; - continue; - } - } - if (node === current) { - return; - } - while (node.sibling === null) { - if (node["return"] === null || node["return"] === current) { - return; - } - node = node["return"]; - if (node.tag === HostPortal) { - // When we go out of the portal, we need to restore the parent. - // Since we don't keep a stack of them, we will search for it. - currentParentIsValid = false; - } - } - node.sibling["return"] = node["return"]; - node = node.sibling; - } - } - - function commitDeletion(current) { - // Recursively delete all host nodes from the parent. - // Detach refs and call componentWillUnmount() on the whole subtree. - unmountHostComponents(current); - detachFiber(current); - } - - function commitWork(current, finishedWork) { - switch (finishedWork.tag) { - case ClassComponent: { - return; - } - case HostComponent: { - var instance = finishedWork.stateNode; - if (instance != null) { - // Commit the work prepared earlier. - var newProps = finishedWork.memoizedProps; - // For hydration we reuse the update path but we treat the oldProps - // as the newProps. The updatePayload will contain the real change in - // this case. - var oldProps = current !== null ? current.memoizedProps : newProps; - var type = finishedWork.type; - // TODO: Type the updateQueue to be specific to host components. - var updatePayload = finishedWork.updateQueue; - finishedWork.updateQueue = null; - if (updatePayload !== null) { - commitUpdate( - instance, - updatePayload, - type, - oldProps, - newProps, - finishedWork - ); - } - } - return; - } - case HostText: { - invariant( - finishedWork.stateNode !== null, - "This should have a text node initialized. This error is likely " + - "caused by a bug in React. Please file an issue." - ); - var textInstance = finishedWork.stateNode; - var newText = finishedWork.memoizedProps; - // For hydration we reuse the update path but we treat the oldProps - // as the newProps. The updatePayload will contain the real change in - // this case. - var oldText = current !== null ? current.memoizedProps : newText; - commitTextUpdate(textInstance, oldText, newText); - return; - } - case HostRoot: { - return; - } - default: { - invariant( - false, - "This unit of work tag should not have side-effects. This error is " + - "likely caused by a bug in React. Please file an issue." - ); - } - } - } - - function commitResetTextContent(current) { - resetTextContent(current.stateNode); - } - - if (enableMutatingReconciler) { - return { - commitResetTextContent: commitResetTextContent, - commitPlacement: commitPlacement, - commitDeletion: commitDeletion, - commitWork: commitWork, - commitLifeCycles: commitLifeCycles, - commitAttachRef: commitAttachRef, - commitDetachRef: commitDetachRef - }; - } else { - invariant(false, "Mutating reconciler is disabled."); - } -}; - -var NO_CONTEXT = {}; - -var ReactFiberHostContext = function(config) { - var getChildHostContext = config.getChildHostContext, - getRootHostContext = config.getRootHostContext; - - var contextStackCursor = createCursor(NO_CONTEXT); - var contextFiberStackCursor = createCursor(NO_CONTEXT); - var rootInstanceStackCursor = createCursor(NO_CONTEXT); - - function requiredContext(c) { - invariant( - c !== NO_CONTEXT, - "Expected host context to exist. This error is likely caused by a bug " + - "in React. Please file an issue." - ); - return c; - } - - function getRootHostContainer() { - var rootInstance = requiredContext(rootInstanceStackCursor.current); - return rootInstance; - } - - function pushHostContainer(fiber, nextRootInstance) { - // Push current root instance onto the stack; - // This allows us to reset root when portals are popped. - push(rootInstanceStackCursor, nextRootInstance, fiber); - - var nextRootContext = getRootHostContext(nextRootInstance); - - // Track the context and the Fiber that provided it. - // This enables us to pop only Fibers that provide unique contexts. - push(contextFiberStackCursor, fiber, fiber); - push(contextStackCursor, nextRootContext, fiber); - } - - function popHostContainer(fiber) { - pop(contextStackCursor, fiber); - pop(contextFiberStackCursor, fiber); - pop(rootInstanceStackCursor, fiber); - } - - function getHostContext() { - var context = requiredContext(contextStackCursor.current); - return context; - } - - function pushHostContext(fiber) { - var rootInstance = requiredContext(rootInstanceStackCursor.current); - var context = requiredContext(contextStackCursor.current); - var nextContext = getChildHostContext(context, fiber.type, rootInstance); - - // Don't push this Fiber's context unless it's unique. - if (context === nextContext) { - return; - } - - // Track the context and the Fiber that provided it. - // This enables us to pop only Fibers that provide unique contexts. - push(contextFiberStackCursor, fiber, fiber); - push(contextStackCursor, nextContext, fiber); - } - - function popHostContext(fiber) { - // Do not pop unless this Fiber provided the current context. - // pushHostContext() only pushes Fibers that provide unique contexts. - if (contextFiberStackCursor.current !== fiber) { - return; - } - - pop(contextStackCursor, fiber); - pop(contextFiberStackCursor, fiber); - } - - function resetHostContainer() { - contextStackCursor.current = NO_CONTEXT; - rootInstanceStackCursor.current = NO_CONTEXT; - } - - return { - getHostContext: getHostContext, - getRootHostContainer: getRootHostContainer, - popHostContainer: popHostContainer, - popHostContext: popHostContext, - pushHostContainer: pushHostContainer, - pushHostContext: pushHostContext, - resetHostContainer: resetHostContainer - }; -}; - -var ReactFiberHydrationContext = function(config) { - var shouldSetTextContent = config.shouldSetTextContent, - hydration = config.hydration; - - // If this doesn't have hydration mode. - - if (!hydration) { - return { - enterHydrationState: function() { - return false; - }, - resetHydrationState: function() {}, - tryToClaimNextHydratableInstance: function() {}, - prepareToHydrateHostInstance: function() { - invariant( - false, - "Expected prepareToHydrateHostInstance() to never be called. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - }, - prepareToHydrateHostTextInstance: function() { - invariant( - false, - "Expected prepareToHydrateHostTextInstance() to never be called. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - }, - popHydrationState: function(fiber) { - return false; - } - }; - } - - var canHydrateInstance = hydration.canHydrateInstance, - canHydrateTextInstance = hydration.canHydrateTextInstance, - getNextHydratableSibling = hydration.getNextHydratableSibling, - getFirstHydratableChild = hydration.getFirstHydratableChild, - hydrateInstance = hydration.hydrateInstance, - hydrateTextInstance = hydration.hydrateTextInstance, - didNotMatchHydratedContainerTextInstance = - hydration.didNotMatchHydratedContainerTextInstance, - didNotMatchHydratedTextInstance = hydration.didNotMatchHydratedTextInstance, - didNotHydrateContainerInstance = hydration.didNotHydrateContainerInstance, - didNotHydrateInstance = hydration.didNotHydrateInstance, - didNotFindHydratableContainerInstance = - hydration.didNotFindHydratableContainerInstance, - didNotFindHydratableContainerTextInstance = - hydration.didNotFindHydratableContainerTextInstance, - didNotFindHydratableInstance = hydration.didNotFindHydratableInstance, - didNotFindHydratableTextInstance = - hydration.didNotFindHydratableTextInstance; - - // The deepest Fiber on the stack involved in a hydration context. - // This may have been an insertion or a hydration. - - var hydrationParentFiber = null; - var nextHydratableInstance = null; - var isHydrating = false; - - function enterHydrationState(fiber) { - var parentInstance = fiber.stateNode.containerInfo; - nextHydratableInstance = getFirstHydratableChild(parentInstance); - hydrationParentFiber = fiber; - isHydrating = true; - return true; - } - - function deleteHydratableInstance(returnFiber, instance) { - { - switch (returnFiber.tag) { - case HostRoot: - didNotHydrateContainerInstance( - returnFiber.stateNode.containerInfo, - instance - ); - break; - case HostComponent: - didNotHydrateInstance( - returnFiber.type, - returnFiber.memoizedProps, - returnFiber.stateNode, - instance - ); - break; - } - } - - var childToDelete = createFiberFromHostInstanceForDeletion(); - childToDelete.stateNode = instance; - childToDelete["return"] = returnFiber; - childToDelete.effectTag = Deletion; - - // This might seem like it belongs on progressedFirstDeletion. However, - // these children are not part of the reconciliation list of children. - // Even if we abort and rereconcile the children, that will try to hydrate - // again and the nodes are still in the host tree so these will be - // recreated. - if (returnFiber.lastEffect !== null) { - returnFiber.lastEffect.nextEffect = childToDelete; - returnFiber.lastEffect = childToDelete; - } else { - returnFiber.firstEffect = returnFiber.lastEffect = childToDelete; - } - } - - function insertNonHydratedInstance(returnFiber, fiber) { - fiber.effectTag |= Placement; - { - switch (returnFiber.tag) { - case HostRoot: { - var parentContainer = returnFiber.stateNode.containerInfo; - switch (fiber.tag) { - case HostComponent: - var type = fiber.type; - var props = fiber.pendingProps; - didNotFindHydratableContainerInstance( - parentContainer, - type, - props - ); - break; - case HostText: - var text = fiber.pendingProps; - didNotFindHydratableContainerTextInstance(parentContainer, text); - break; - } - break; - } - case HostComponent: { - var parentType = returnFiber.type; - var parentProps = returnFiber.memoizedProps; - var parentInstance = returnFiber.stateNode; - switch (fiber.tag) { - case HostComponent: - var _type = fiber.type; - var _props = fiber.pendingProps; - didNotFindHydratableInstance( - parentType, - parentProps, - parentInstance, - _type, - _props - ); - break; - case HostText: - var _text = fiber.pendingProps; - didNotFindHydratableTextInstance( - parentType, - parentProps, - parentInstance, - _text - ); - break; - } - break; - } - default: - return; - } - } - } - - function tryHydrate(fiber, nextInstance) { - switch (fiber.tag) { - case HostComponent: { - var type = fiber.type; - var props = fiber.pendingProps; - var instance = canHydrateInstance(nextInstance, type, props); - if (instance !== null) { - fiber.stateNode = instance; - return true; - } - return false; - } - case HostText: { - var text = fiber.pendingProps; - var textInstance = canHydrateTextInstance(nextInstance, text); - if (textInstance !== null) { - fiber.stateNode = textInstance; - return true; - } - return false; - } - default: - return false; - } - } - - function tryToClaimNextHydratableInstance(fiber) { - if (!isHydrating) { - return; - } - var nextInstance = nextHydratableInstance; - if (!nextInstance) { - // Nothing to hydrate. Make it an insertion. - insertNonHydratedInstance(hydrationParentFiber, fiber); - isHydrating = false; - hydrationParentFiber = fiber; - return; - } - if (!tryHydrate(fiber, nextInstance)) { - // If we can't hydrate this instance let's try the next one. - // We use this as a heuristic. It's based on intuition and not data so it - // might be flawed or unnecessary. - nextInstance = getNextHydratableSibling(nextInstance); - if (!nextInstance || !tryHydrate(fiber, nextInstance)) { - // Nothing to hydrate. Make it an insertion. - insertNonHydratedInstance(hydrationParentFiber, fiber); - isHydrating = false; - hydrationParentFiber = fiber; - return; - } - // We matched the next one, we'll now assume that the first one was - // superfluous and we'll delete it. Since we can't eagerly delete it - // we'll have to schedule a deletion. To do that, this node needs a dummy - // fiber associated with it. - deleteHydratableInstance(hydrationParentFiber, nextHydratableInstance); - } - hydrationParentFiber = fiber; - nextHydratableInstance = getFirstHydratableChild(nextInstance); - } - - function prepareToHydrateHostInstance( - fiber, - rootContainerInstance, - hostContext - ) { - var instance = fiber.stateNode; - var updatePayload = hydrateInstance( - instance, - fiber.type, - fiber.memoizedProps, - rootContainerInstance, - hostContext, - fiber - ); - // TODO: Type this specific to this type of component. - fiber.updateQueue = updatePayload; - // If the update payload indicates that there is a change or if there - // is a new ref we mark this as an update. - if (updatePayload !== null) { - return true; - } - return false; - } - - function prepareToHydrateHostTextInstance(fiber) { - var textInstance = fiber.stateNode; - var textContent = fiber.memoizedProps; - var shouldUpdate = hydrateTextInstance(textInstance, textContent, fiber); - { - if (shouldUpdate) { - // We assume that prepareToHydrateHostTextInstance is called in a context where the - // hydration parent is the parent host component of this host text. - var returnFiber = hydrationParentFiber; - if (returnFiber !== null) { - switch (returnFiber.tag) { - case HostRoot: { - var parentContainer = returnFiber.stateNode.containerInfo; - didNotMatchHydratedContainerTextInstance( - parentContainer, - textInstance, - textContent - ); - break; - } - case HostComponent: { - var parentType = returnFiber.type; - var parentProps = returnFiber.memoizedProps; - var parentInstance = returnFiber.stateNode; - didNotMatchHydratedTextInstance( - parentType, - parentProps, - parentInstance, - textInstance, - textContent - ); - break; - } - } - } - } - } - return shouldUpdate; - } - - function popToNextHostParent(fiber) { - var parent = fiber["return"]; - while ( - parent !== null && - parent.tag !== HostComponent && - parent.tag !== HostRoot - ) { - parent = parent["return"]; - } - hydrationParentFiber = parent; - } - - function popHydrationState(fiber) { - if (fiber !== hydrationParentFiber) { - // We're deeper than the current hydration context, inside an inserted - // tree. - return false; - } - if (!isHydrating) { - // If we're not currently hydrating but we're in a hydration context, then - // we were an insertion and now need to pop up reenter hydration of our - // siblings. - popToNextHostParent(fiber); - isHydrating = true; - return false; - } - - var type = fiber.type; - - // If we have any remaining hydratable nodes, we need to delete them now. - // We only do this deeper than head and body since they tend to have random - // other nodes in them. We also ignore components with pure text content in - // side of them. - // TODO: Better heuristic. - if ( - fiber.tag !== HostComponent || - (type !== "head" && - type !== "body" && - !shouldSetTextContent(type, fiber.memoizedProps)) - ) { - var nextInstance = nextHydratableInstance; - while (nextInstance) { - deleteHydratableInstance(fiber, nextInstance); - nextInstance = getNextHydratableSibling(nextInstance); - } - } - - popToNextHostParent(fiber); - nextHydratableInstance = hydrationParentFiber - ? getNextHydratableSibling(fiber.stateNode) - : null; - return true; - } - - function resetHydrationState() { - hydrationParentFiber = null; - nextHydratableInstance = null; - isHydrating = false; - } - - return { - enterHydrationState: enterHydrationState, - resetHydrationState: resetHydrationState, - tryToClaimNextHydratableInstance: tryToClaimNextHydratableInstance, - prepareToHydrateHostInstance: prepareToHydrateHostInstance, - prepareToHydrateHostTextInstance: prepareToHydrateHostTextInstance, - popHydrationState: popHydrationState - }; -}; - -// This lets us hook into Fiber to debug what it's doing. -// See https://github.com/facebook/react/pull/8033. -// This is not part of the public API, not even for React DevTools. -// You may only inject a debugTool if you work on React Fiber itself. -var ReactFiberInstrumentation = { - debugTool: null -}; - -var ReactFiberInstrumentation_1 = ReactFiberInstrumentation; - -var invokeGuardedCallback$1 = ReactErrorUtils.invokeGuardedCallback; -var hasCaughtError = ReactErrorUtils.hasCaughtError; -var clearCaughtError = ReactErrorUtils.clearCaughtError; - -{ - var didWarnAboutStateTransition = false; - var didWarnSetStateChildContext = false; - var didWarnStateUpdateForUnmountedComponent = {}; - - var warnAboutUpdateOnUnmounted = function(fiber) { - var componentName = getComponentName(fiber) || "ReactClass"; - if (didWarnStateUpdateForUnmountedComponent[componentName]) { - return; - } - warning( - false, - "Can only update a mounted or mounting " + - "component. This usually means you called setState, replaceState, " + - "or forceUpdate on an unmounted component. This is a no-op.\n\nPlease " + - "check the code for the %s component.", - componentName - ); - didWarnStateUpdateForUnmountedComponent[componentName] = true; - }; - - var warnAboutInvalidUpdates = function(instance) { - switch (ReactDebugCurrentFiber.phase) { - case "getChildContext": - if (didWarnSetStateChildContext) { - return; - } - warning( - false, - "setState(...): Cannot call setState() inside getChildContext()" - ); - didWarnSetStateChildContext = true; - break; - case "render": - if (didWarnAboutStateTransition) { - return; - } - warning( - false, - "Cannot update during an existing state transition (such as within " + - "`render` or another component's constructor). Render methods should " + - "be a pure function of props and state; constructor side-effects are " + - "an anti-pattern, but can be moved to `componentWillMount`." - ); - didWarnAboutStateTransition = true; - break; - } - }; -} - -var ReactFiberScheduler = function(config) { - var hostContext = ReactFiberHostContext(config); - var hydrationContext = ReactFiberHydrationContext(config); - var popHostContainer = hostContext.popHostContainer, - popHostContext = hostContext.popHostContext, - resetHostContainer = hostContext.resetHostContainer; - - var _ReactFiberBeginWork = ReactFiberBeginWork( - config, - hostContext, - hydrationContext, - scheduleWork, - computeExpirationForFiber - ), - beginWork = _ReactFiberBeginWork.beginWork, - beginFailedWork = _ReactFiberBeginWork.beginFailedWork; - - var _ReactFiberCompleteWo = ReactFiberCompleteWork( - config, - hostContext, - hydrationContext - ), - completeWork = _ReactFiberCompleteWo.completeWork; - - var _ReactFiberCommitWork = ReactFiberCommitWork(config, captureError), - commitResetTextContent = _ReactFiberCommitWork.commitResetTextContent, - commitPlacement = _ReactFiberCommitWork.commitPlacement, - commitDeletion = _ReactFiberCommitWork.commitDeletion, - commitWork = _ReactFiberCommitWork.commitWork, - commitLifeCycles = _ReactFiberCommitWork.commitLifeCycles, - commitAttachRef = _ReactFiberCommitWork.commitAttachRef, - commitDetachRef = _ReactFiberCommitWork.commitDetachRef; - - var now = config.now, - scheduleDeferredCallback = config.scheduleDeferredCallback, - cancelDeferredCallback = config.cancelDeferredCallback, - useSyncScheduling = config.useSyncScheduling, - prepareForCommit = config.prepareForCommit, - resetAfterCommit = config.resetAfterCommit; - - // Represents the current time in ms. - - var startTime = now(); - var mostRecentCurrentTime = msToExpirationTime(0); - - // Used to ensure computeUniqueAsyncExpiration is monotonically increases. - var lastUniqueAsyncExpiration = 0; - - // Represents the expiration time that incoming updates should use. (If this - // is NoWork, use the default strategy: async updates in async mode, sync - // updates in sync mode.) - var expirationContext = NoWork; - - var isWorking = false; - - // The next work in progress fiber that we're currently working on. - var nextUnitOfWork = null; - var nextRoot = null; - // The time at which we're currently rendering work. - var nextRenderExpirationTime = NoWork; - - // The next fiber with an effect that we're currently committing. - var nextEffect = null; - - // Keep track of which fibers have captured an error that need to be handled. - // Work is removed from this collection after componentDidCatch is called. - var capturedErrors = null; - // Keep track of which fibers have failed during the current batch of work. - // This is a different set than capturedErrors, because it is not reset until - // the end of the batch. This is needed to propagate errors correctly if a - // subtree fails more than once. - var failedBoundaries = null; - // Error boundaries that captured an error during the current commit. - var commitPhaseBoundaries = null; - var firstUncaughtError = null; - var didFatal = false; - - var isCommitting = false; - var isUnmounting = false; - - // Used for performance tracking. - var interruptedBy = null; - - function resetContextStack() { - // Reset the stack - reset(); - // Reset the cursors - resetContext(); - resetHostContainer(); - } - - function commitAllHostEffects() { - while (nextEffect !== null) { - { - ReactDebugCurrentFiber.setCurrentFiber(nextEffect); - } - recordEffect(); - - var effectTag = nextEffect.effectTag; - if (effectTag & ContentReset) { - commitResetTextContent(nextEffect); - } - - if (effectTag & Ref) { - var current = nextEffect.alternate; - if (current !== null) { - commitDetachRef(current); - } - } - - // The following switch statement is only concerned about placement, - // updates, and deletions. To avoid needing to add a case for every - // possible bitmap value, we remove the secondary effects from the - // effect tag and switch on that value. - var primaryEffectTag = - effectTag & ~(Callback | Err | ContentReset | Ref | PerformedWork); - switch (primaryEffectTag) { - case Placement: { - commitPlacement(nextEffect); - // Clear the "placement" from effect tag so that we know that this is inserted, before - // any life-cycles like componentDidMount gets called. - // TODO: findDOMNode doesn't rely on this any more but isMounted - // does and isMounted is deprecated anyway so we should be able - // to kill this. - nextEffect.effectTag &= ~Placement; - break; - } - case PlacementAndUpdate: { - // Placement - commitPlacement(nextEffect); - // Clear the "placement" from effect tag so that we know that this is inserted, before - // any life-cycles like componentDidMount gets called. - nextEffect.effectTag &= ~Placement; - - // Update - var _current = nextEffect.alternate; - commitWork(_current, nextEffect); - break; - } - case Update: { - var _current2 = nextEffect.alternate; - commitWork(_current2, nextEffect); - break; - } - case Deletion: { - isUnmounting = true; - commitDeletion(nextEffect); - isUnmounting = false; - break; - } - } - nextEffect = nextEffect.nextEffect; - } - - { - ReactDebugCurrentFiber.resetCurrentFiber(); - } - } - - function commitAllLifeCycles() { - while (nextEffect !== null) { - var effectTag = nextEffect.effectTag; - - if (effectTag & (Update | Callback)) { - recordEffect(); - var current = nextEffect.alternate; - commitLifeCycles(current, nextEffect); - } - - if (effectTag & Ref) { - recordEffect(); - commitAttachRef(nextEffect); - } - - if (effectTag & Err) { - recordEffect(); - commitErrorHandling(nextEffect); - } - - var next = nextEffect.nextEffect; - // Ensure that we clean these up so that we don't accidentally keep them. - // I'm not actually sure this matters because we can't reset firstEffect - // and lastEffect since they're on every node, not just the effectful - // ones. So we have to clean everything as we reuse nodes anyway. - nextEffect.nextEffect = null; - // Ensure that we reset the effectTag here so that we can rely on effect - // tags to reason about the current life-cycle. - nextEffect = next; - } - } - - function commitRoot(finishedWork) { - // We keep track of this so that captureError can collect any boundaries - // that capture an error during the commit phase. The reason these aren't - // local to this function is because errors that occur during cWU are - // captured elsewhere, to prevent the unmount from being interrupted. - isWorking = true; - isCommitting = true; - startCommitTimer(); - - var root = finishedWork.stateNode; - invariant( - root.current !== finishedWork, - "Cannot commit the same tree as before. This is probably a bug " + - "related to the return field. This error is likely caused by a bug " + - "in React. Please file an issue." - ); - root.isReadyForCommit = false; - - // Reset this to null before calling lifecycles - ReactCurrentOwner.current = null; - - var firstEffect = void 0; - if (finishedWork.effectTag > PerformedWork) { - // A fiber's effect list consists only of its children, not itself. So if - // the root has an effect, we need to add it to the end of the list. The - // resulting list is the set that would belong to the root's parent, if - // it had one; that is, all the effects in the tree including the root. - if (finishedWork.lastEffect !== null) { - finishedWork.lastEffect.nextEffect = finishedWork; - firstEffect = finishedWork.firstEffect; - } else { - firstEffect = finishedWork; - } - } else { - // There is no effect on the root. - firstEffect = finishedWork.firstEffect; - } - - prepareForCommit(); - - // Commit all the side-effects within a tree. We'll do this in two passes. - // The first pass performs all the host insertions, updates, deletions and - // ref unmounts. - nextEffect = firstEffect; - startCommitHostEffectsTimer(); - while (nextEffect !== null) { - var didError = false; - var _error = void 0; - { - invokeGuardedCallback$1(null, commitAllHostEffects, null); - if (hasCaughtError()) { - didError = true; - _error = clearCaughtError(); - } - } - if (didError) { - invariant( - nextEffect !== null, - "Should have next effect. This error is likely caused by a bug " + - "in React. Please file an issue." - ); - captureError(nextEffect, _error); - // Clean-up - if (nextEffect !== null) { - nextEffect = nextEffect.nextEffect; - } - } - } - stopCommitHostEffectsTimer(); - - resetAfterCommit(); - - // The work-in-progress tree is now the current tree. This must come after - // the first pass of the commit phase, so that the previous tree is still - // current during componentWillUnmount, but before the second pass, so that - // the finished work is current during componentDidMount/Update. - root.current = finishedWork; - - // In the second pass we'll perform all life-cycles and ref callbacks. - // Life-cycles happen as a separate pass so that all placements, updates, - // and deletions in the entire tree have already been invoked. - // This pass also triggers any renderer-specific initial effects. - nextEffect = firstEffect; - startCommitLifeCyclesTimer(); - while (nextEffect !== null) { - var _didError = false; - var _error2 = void 0; - { - invokeGuardedCallback$1(null, commitAllLifeCycles, null); - if (hasCaughtError()) { - _didError = true; - _error2 = clearCaughtError(); - } - } - if (_didError) { - invariant( - nextEffect !== null, - "Should have next effect. This error is likely caused by a bug " + - "in React. Please file an issue." - ); - captureError(nextEffect, _error2); - if (nextEffect !== null) { - nextEffect = nextEffect.nextEffect; - } - } - } - - isCommitting = false; - isWorking = false; - stopCommitLifeCyclesTimer(); - stopCommitTimer(); - if (typeof onCommitRoot === "function") { - onCommitRoot(finishedWork.stateNode); - } - if (true && ReactFiberInstrumentation_1.debugTool) { - ReactFiberInstrumentation_1.debugTool.onCommitWork(finishedWork); - } - - // If we caught any errors during this commit, schedule their boundaries - // to update. - if (commitPhaseBoundaries) { - commitPhaseBoundaries.forEach(scheduleErrorRecovery); - commitPhaseBoundaries = null; - } - - if (firstUncaughtError !== null) { - var _error3 = firstUncaughtError; - firstUncaughtError = null; - onUncaughtError(_error3); - } - - var remainingTime = root.current.expirationTime; - - if (remainingTime === NoWork) { - capturedErrors = null; - failedBoundaries = null; - } - - return remainingTime; - } - - function resetExpirationTime(workInProgress, renderTime) { - if (renderTime !== Never && workInProgress.expirationTime === Never) { - // The children of this component are hidden. Don't bubble their - // expiration times. - return; - } - - // Check for pending updates. - var newExpirationTime = getUpdateExpirationTime(workInProgress); - - // TODO: Calls need to visit stateNode - - // Bubble up the earliest expiration time. - var child = workInProgress.child; - while (child !== null) { - if ( - child.expirationTime !== NoWork && - (newExpirationTime === NoWork || - newExpirationTime > child.expirationTime) - ) { - newExpirationTime = child.expirationTime; - } - child = child.sibling; - } - workInProgress.expirationTime = newExpirationTime; - } - - function completeUnitOfWork(workInProgress) { - while (true) { - // The current, flushed, state of this fiber is the alternate. - // Ideally nothing should rely on this, but relying on it here - // means that we don't need an additional field on the work in - // progress. - var current = workInProgress.alternate; - { - ReactDebugCurrentFiber.setCurrentFiber(workInProgress); - } - var next = completeWork( - current, - workInProgress, - nextRenderExpirationTime - ); - { - ReactDebugCurrentFiber.resetCurrentFiber(); - } - - var returnFiber = workInProgress["return"]; - var siblingFiber = workInProgress.sibling; - - resetExpirationTime(workInProgress, nextRenderExpirationTime); - - if (next !== null) { - stopWorkTimer(workInProgress); - if (true && ReactFiberInstrumentation_1.debugTool) { - ReactFiberInstrumentation_1.debugTool.onCompleteWork(workInProgress); - } - // If completing this work spawned new work, do that next. We'll come - // back here again. - return next; - } - - if (returnFiber !== null) { - // Append all the effects of the subtree and this fiber onto the effect - // list of the parent. The completion order of the children affects the - // side-effect order. - if (returnFiber.firstEffect === null) { - returnFiber.firstEffect = workInProgress.firstEffect; - } - if (workInProgress.lastEffect !== null) { - if (returnFiber.lastEffect !== null) { - returnFiber.lastEffect.nextEffect = workInProgress.firstEffect; - } - returnFiber.lastEffect = workInProgress.lastEffect; - } - - // If this fiber had side-effects, we append it AFTER the children's - // side-effects. We can perform certain side-effects earlier if - // needed, by doing multiple passes over the effect list. We don't want - // to schedule our own side-effect on our own list because if end up - // reusing children we'll schedule this effect onto itself since we're - // at the end. - var effectTag = workInProgress.effectTag; - // Skip both NoWork and PerformedWork tags when creating the effect list. - // PerformedWork effect is read by React DevTools but shouldn't be committed. - if (effectTag > PerformedWork) { - if (returnFiber.lastEffect !== null) { - returnFiber.lastEffect.nextEffect = workInProgress; - } else { - returnFiber.firstEffect = workInProgress; - } - returnFiber.lastEffect = workInProgress; - } - } - - stopWorkTimer(workInProgress); - if (true && ReactFiberInstrumentation_1.debugTool) { - ReactFiberInstrumentation_1.debugTool.onCompleteWork(workInProgress); - } - - if (siblingFiber !== null) { - // If there is more work to do in this returnFiber, do that next. - return siblingFiber; - } else if (returnFiber !== null) { - // If there's no more work in this returnFiber. Complete the returnFiber. - workInProgress = returnFiber; - continue; - } else { - // We've reached the root. - var root = workInProgress.stateNode; - root.isReadyForCommit = true; - return null; - } - } - - // Without this explicit null return Flow complains of invalid return type - // TODO Remove the above while(true) loop - // eslint-disable-next-line no-unreachable - return null; - } - - function performUnitOfWork(workInProgress) { - // The current, flushed, state of this fiber is the alternate. - // Ideally nothing should rely on this, but relying on it here - // means that we don't need an additional field on the work in - // progress. - var current = workInProgress.alternate; - - // See if beginning this work spawns more work. - startWorkTimer(workInProgress); - { - ReactDebugCurrentFiber.setCurrentFiber(workInProgress); - } - - var next = beginWork(current, workInProgress, nextRenderExpirationTime); - { - ReactDebugCurrentFiber.resetCurrentFiber(); - } - if (true && ReactFiberInstrumentation_1.debugTool) { - ReactFiberInstrumentation_1.debugTool.onBeginWork(workInProgress); - } - - if (next === null) { - // If this doesn't spawn new work, complete the current work. - next = completeUnitOfWork(workInProgress); - } - - ReactCurrentOwner.current = null; - - return next; - } - - function performFailedUnitOfWork(workInProgress) { - // The current, flushed, state of this fiber is the alternate. - // Ideally nothing should rely on this, but relying on it here - // means that we don't need an additional field on the work in - // progress. - var current = workInProgress.alternate; - - // See if beginning this work spawns more work. - startWorkTimer(workInProgress); - { - ReactDebugCurrentFiber.setCurrentFiber(workInProgress); - } - var next = beginFailedWork( - current, - workInProgress, - nextRenderExpirationTime - ); - { - ReactDebugCurrentFiber.resetCurrentFiber(); - } - if (true && ReactFiberInstrumentation_1.debugTool) { - ReactFiberInstrumentation_1.debugTool.onBeginWork(workInProgress); - } - - if (next === null) { - // If this doesn't spawn new work, complete the current work. - next = completeUnitOfWork(workInProgress); - } - - ReactCurrentOwner.current = null; - - return next; - } - - function workLoop(expirationTime) { - if (capturedErrors !== null) { - // If there are unhandled errors, switch to the slow work loop. - // TODO: How to avoid this check in the fast path? Maybe the renderer - // could keep track of which roots have unhandled errors and call a - // forked version of renderRoot. - slowWorkLoopThatChecksForFailedWork(expirationTime); - return; - } - if ( - nextRenderExpirationTime === NoWork || - nextRenderExpirationTime > expirationTime - ) { - return; - } - - if (nextRenderExpirationTime <= mostRecentCurrentTime) { - // Flush all expired work. - while (nextUnitOfWork !== null) { - nextUnitOfWork = performUnitOfWork(nextUnitOfWork); - } - } else { - // Flush asynchronous work until the deadline runs out of time. - while (nextUnitOfWork !== null && !shouldYield()) { - nextUnitOfWork = performUnitOfWork(nextUnitOfWork); - } - } - } - - function slowWorkLoopThatChecksForFailedWork(expirationTime) { - if ( - nextRenderExpirationTime === NoWork || - nextRenderExpirationTime > expirationTime - ) { - return; - } - - if (nextRenderExpirationTime <= mostRecentCurrentTime) { - // Flush all expired work. - while (nextUnitOfWork !== null) { - if (hasCapturedError(nextUnitOfWork)) { - // Use a forked version of performUnitOfWork - nextUnitOfWork = performFailedUnitOfWork(nextUnitOfWork); - } else { - nextUnitOfWork = performUnitOfWork(nextUnitOfWork); - } - } - } else { - // Flush asynchronous work until the deadline runs out of time. - while (nextUnitOfWork !== null && !shouldYield()) { - if (hasCapturedError(nextUnitOfWork)) { - // Use a forked version of performUnitOfWork - nextUnitOfWork = performFailedUnitOfWork(nextUnitOfWork); - } else { - nextUnitOfWork = performUnitOfWork(nextUnitOfWork); - } - } - } - } - - function renderRootCatchBlock(root, failedWork, boundary, expirationTime) { - // We're going to restart the error boundary that captured the error. - // Conceptually, we're unwinding the stack. We need to unwind the - // context stack, too. - unwindContexts(failedWork, boundary); - - // Restart the error boundary using a forked version of - // performUnitOfWork that deletes the boundary's children. The entire - // failed subree will be unmounted. During the commit phase, a special - // lifecycle method is called on the error boundary, which triggers - // a re-render. - nextUnitOfWork = performFailedUnitOfWork(boundary); - - // Continue working. - workLoop(expirationTime); - } - - function renderRoot(root, expirationTime) { - invariant( - !isWorking, - "renderRoot was called recursively. This error is likely caused " + - "by a bug in React. Please file an issue." - ); - isWorking = true; - - // We're about to mutate the work-in-progress tree. If the root was pending - // commit, it no longer is: we'll need to complete it again. - root.isReadyForCommit = false; - - // Check if we're starting from a fresh stack, or if we're resuming from - // previously yielded work. - if ( - root !== nextRoot || - expirationTime !== nextRenderExpirationTime || - nextUnitOfWork === null - ) { - // Reset the stack and start working from the root. - resetContextStack(); - nextRoot = root; - nextRenderExpirationTime = expirationTime; - nextUnitOfWork = createWorkInProgress( - nextRoot.current, - null, - expirationTime - ); - } - - startWorkLoopTimer(nextUnitOfWork); - - var didError = false; - var error = null; - { - invokeGuardedCallback$1(null, workLoop, null, expirationTime); - if (hasCaughtError()) { - didError = true; - error = clearCaughtError(); - } - } - - // An error was thrown during the render phase. - while (didError) { - if (didFatal) { - // This was a fatal error. Don't attempt to recover from it. - firstUncaughtError = error; - break; - } - - var failedWork = nextUnitOfWork; - if (failedWork === null) { - // An error was thrown but there's no current unit of work. This can - // happen during the commit phase if there's a bug in the renderer. - didFatal = true; - continue; - } - - // "Capture" the error by finding the nearest boundary. If there is no - // error boundary, we use the root. - var boundary = captureError(failedWork, error); - invariant( - boundary !== null, - "Should have found an error boundary. This error is likely " + - "caused by a bug in React. Please file an issue." - ); - - if (didFatal) { - // The error we just captured was a fatal error. This happens - // when the error propagates to the root more than once. - continue; - } - - didError = false; - error = null; - { - invokeGuardedCallback$1( - null, - renderRootCatchBlock, - null, - root, - failedWork, - boundary, - expirationTime - ); - if (hasCaughtError()) { - didError = true; - error = clearCaughtError(); - continue; - } - } - // We're finished working. Exit the error loop. - break; - } - - var uncaughtError = firstUncaughtError; - - // We're done performing work. Time to clean up. - stopWorkLoopTimer(interruptedBy); - interruptedBy = null; - isWorking = false; - didFatal = false; - firstUncaughtError = null; - - if (uncaughtError !== null) { - onUncaughtError(uncaughtError); - } - - return root.isReadyForCommit ? root.current.alternate : null; - } - - // Returns the boundary that captured the error, or null if the error is ignored - function captureError(failedWork, error) { - // It is no longer valid because we exited the user code. - ReactCurrentOwner.current = null; - { - ReactDebugCurrentFiber.resetCurrentFiber(); - } - - // Search for the nearest error boundary. - var boundary = null; - - // Passed to logCapturedError() - var errorBoundaryFound = false; - var willRetry = false; - var errorBoundaryName = null; - - // Host containers are a special case. If the failed work itself is a host - // container, then it acts as its own boundary. In all other cases, we - // ignore the work itself and only search through the parents. - if (failedWork.tag === HostRoot) { - boundary = failedWork; - - if (isFailedBoundary(failedWork)) { - // If this root already failed, there must have been an error when - // attempting to unmount it. This is a worst-case scenario and - // should only be possible if there's a bug in the renderer. - didFatal = true; - } - } else { - var node = failedWork["return"]; - while (node !== null && boundary === null) { - if (node.tag === ClassComponent) { - var instance = node.stateNode; - if (typeof instance.componentDidCatch === "function") { - errorBoundaryFound = true; - errorBoundaryName = getComponentName(node); - - // Found an error boundary! - boundary = node; - willRetry = true; - } - } else if (node.tag === HostRoot) { - // Treat the root like a no-op error boundary - boundary = node; - } - - if (isFailedBoundary(node)) { - // This boundary is already in a failed state. - - // If we're currently unmounting, that means this error was - // thrown while unmounting a failed subtree. We should ignore - // the error. - if (isUnmounting) { - return null; - } - - // If we're in the commit phase, we should check to see if - // this boundary already captured an error during this commit. - // This case exists because multiple errors can be thrown during - // a single commit without interruption. - if ( - commitPhaseBoundaries !== null && - (commitPhaseBoundaries.has(node) || - (node.alternate !== null && - commitPhaseBoundaries.has(node.alternate))) - ) { - // If so, we should ignore this error. - return null; - } - - // The error should propagate to the next boundary -— we keep looking. - boundary = null; - willRetry = false; - } - - node = node["return"]; - } - } - - if (boundary !== null) { - // Add to the collection of failed boundaries. This lets us know that - // subsequent errors in this subtree should propagate to the next boundary. - if (failedBoundaries === null) { - failedBoundaries = new Set(); - } - failedBoundaries.add(boundary); - - // This method is unsafe outside of the begin and complete phases. - // We might be in the commit phase when an error is captured. - // The risk is that the return path from this Fiber may not be accurate. - // That risk is acceptable given the benefit of providing users more context. - var _componentStack = getStackAddendumByWorkInProgressFiber(failedWork); - var _componentName = getComponentName(failedWork); - - // Add to the collection of captured errors. This is stored as a global - // map of errors and their component stack location keyed by the boundaries - // that capture them. We mostly use this Map as a Set; it's a Map only to - // avoid adding a field to Fiber to store the error. - if (capturedErrors === null) { - capturedErrors = new Map(); - } - - var capturedError = { - componentName: _componentName, - componentStack: _componentStack, - error: error, - errorBoundary: errorBoundaryFound ? boundary.stateNode : null, - errorBoundaryFound: errorBoundaryFound, - errorBoundaryName: errorBoundaryName, - willRetry: willRetry - }; - - capturedErrors.set(boundary, capturedError); - - try { - logCapturedError(capturedError); - } catch (e) { - // Prevent cycle if logCapturedError() throws. - // A cycle may still occur if logCapturedError renders a component that throws. - var suppressLogging = e && e.suppressReactErrorLogging; - if (!suppressLogging) { - console.error(e); - } - } - - // If we're in the commit phase, defer scheduling an update on the - // boundary until after the commit is complete - if (isCommitting) { - if (commitPhaseBoundaries === null) { - commitPhaseBoundaries = new Set(); - } - commitPhaseBoundaries.add(boundary); - } else { - // Otherwise, schedule an update now. - // TODO: Is this actually necessary during the render phase? Is it - // possible to unwind and continue rendering at the same priority, - // without corrupting internal state? - scheduleErrorRecovery(boundary); - } - return boundary; - } else if (firstUncaughtError === null) { - // If no boundary is found, we'll need to throw the error - firstUncaughtError = error; - } - return null; - } - - function hasCapturedError(fiber) { - // TODO: capturedErrors should store the boundary instance, to avoid needing - // to check the alternate. - return ( - capturedErrors !== null && - (capturedErrors.has(fiber) || - (fiber.alternate !== null && capturedErrors.has(fiber.alternate))) - ); - } - - function isFailedBoundary(fiber) { - // TODO: failedBoundaries should store the boundary instance, to avoid - // needing to check the alternate. - return ( - failedBoundaries !== null && - (failedBoundaries.has(fiber) || - (fiber.alternate !== null && failedBoundaries.has(fiber.alternate))) - ); - } - - function commitErrorHandling(effectfulFiber) { - var capturedError = void 0; - if (capturedErrors !== null) { - capturedError = capturedErrors.get(effectfulFiber); - capturedErrors["delete"](effectfulFiber); - if (capturedError == null) { - if (effectfulFiber.alternate !== null) { - effectfulFiber = effectfulFiber.alternate; - capturedError = capturedErrors.get(effectfulFiber); - capturedErrors["delete"](effectfulFiber); - } - } - } - - invariant( - capturedError != null, - "No error for given unit of work. This error is likely caused by a " + - "bug in React. Please file an issue." - ); - - switch (effectfulFiber.tag) { - case ClassComponent: - var instance = effectfulFiber.stateNode; - - var info = { - componentStack: capturedError.componentStack - }; - - // Allow the boundary to handle the error, usually by scheduling - // an update to itself - instance.componentDidCatch(capturedError.error, info); - return; - case HostRoot: - if (firstUncaughtError === null) { - firstUncaughtError = capturedError.error; - } - return; - default: - invariant( - false, - "Invalid type of work. This error is likely caused by a bug in " + - "React. Please file an issue." - ); - } - } - - function unwindContexts(from, to) { - var node = from; - while (node !== null) { - switch (node.tag) { - case ClassComponent: - popContextProvider(node); - break; - case HostComponent: - popHostContext(node); - break; - case HostRoot: - popHostContainer(node); - break; - case HostPortal: - popHostContainer(node); - break; - } - if (node === to || node.alternate === to) { - stopFailedWorkTimer(node); - break; - } else { - stopWorkTimer(node); - } - node = node["return"]; - } - } - - function computeAsyncExpiration() { - // Given the current clock time, returns an expiration time. We use rounding - // to batch like updates together. - // Should complete within ~1000ms. 1200ms max. - var currentTime = recalculateCurrentTime(); - var expirationMs = 1000; - var bucketSizeMs = 200; - return computeExpirationBucket(currentTime, expirationMs, bucketSizeMs); - } - - // Creates a unique async expiration time. - function computeUniqueAsyncExpiration() { - var result = computeAsyncExpiration(); - if (result <= lastUniqueAsyncExpiration) { - // Since we assume the current time monotonically increases, we only hit - // this branch when computeUniqueAsyncExpiration is fired multiple times - // within a 200ms window (or whatever the async bucket size is). - result = lastUniqueAsyncExpiration + 1; - } - lastUniqueAsyncExpiration = result; - return lastUniqueAsyncExpiration; - } - - function computeExpirationForFiber(fiber) { - var expirationTime = void 0; - if (expirationContext !== NoWork) { - // An explicit expiration context was set; - expirationTime = expirationContext; - } else if (isWorking) { - if (isCommitting) { - // Updates that occur during the commit phase should have sync priority - // by default. - expirationTime = Sync; - } else { - // Updates during the render phase should expire at the same time as - // the work that is being rendered. - expirationTime = nextRenderExpirationTime; - } - } else { - // No explicit expiration context was set, and we're not currently - // performing work. Calculate a new expiration time. - if (useSyncScheduling && !(fiber.internalContextTag & AsyncUpdates)) { - // This is a sync update - expirationTime = Sync; - } else { - // This is an async update - expirationTime = computeAsyncExpiration(); - } - } - return expirationTime; - } - - function scheduleWork(fiber, expirationTime) { - return scheduleWorkImpl(fiber, expirationTime, false); - } - - function checkRootNeedsClearing(root, fiber, expirationTime) { - if ( - !isWorking && - root === nextRoot && - expirationTime < nextRenderExpirationTime - ) { - // Restart the root from the top. - if (nextUnitOfWork !== null) { - // This is an interruption. (Used for performance tracking.) - interruptedBy = fiber; - } - nextRoot = null; - nextUnitOfWork = null; - nextRenderExpirationTime = NoWork; - } - } - - function scheduleWorkImpl(fiber, expirationTime, isErrorRecovery) { - recordScheduleUpdate(); - - { - if (!isErrorRecovery && fiber.tag === ClassComponent) { - var instance = fiber.stateNode; - warnAboutInvalidUpdates(instance); - } - } - - var node = fiber; - while (node !== null) { - // Walk the parent path to the root and update each node's - // expiration time. - if ( - node.expirationTime === NoWork || - node.expirationTime > expirationTime - ) { - node.expirationTime = expirationTime; - } - if (node.alternate !== null) { - if ( - node.alternate.expirationTime === NoWork || - node.alternate.expirationTime > expirationTime - ) { - node.alternate.expirationTime = expirationTime; - } - } - if (node["return"] === null) { - if (node.tag === HostRoot) { - var root = node.stateNode; - - checkRootNeedsClearing(root, fiber, expirationTime); - requestWork(root, expirationTime); - checkRootNeedsClearing(root, fiber, expirationTime); - } else { - { - if (!isErrorRecovery && fiber.tag === ClassComponent) { - warnAboutUpdateOnUnmounted(fiber); - } - } - return; - } - } - node = node["return"]; - } - } - - function scheduleErrorRecovery(fiber) { - scheduleWorkImpl(fiber, Sync, true); - } - - function recalculateCurrentTime() { - // Subtract initial time so it fits inside 32bits - var ms = now() - startTime; - mostRecentCurrentTime = msToExpirationTime(ms); - return mostRecentCurrentTime; - } - - function deferredUpdates(fn) { - var previousExpirationContext = expirationContext; - expirationContext = computeAsyncExpiration(); - try { - return fn(); - } finally { - expirationContext = previousExpirationContext; - } - } - - function syncUpdates(fn) { - var previousExpirationContext = expirationContext; - expirationContext = Sync; - try { - return fn(); - } finally { - expirationContext = previousExpirationContext; - } - } - - // TODO: Everything below this is written as if it has been lifted to the - // renderers. I'll do this in a follow-up. - - // Linked-list of roots - var firstScheduledRoot = null; - var lastScheduledRoot = null; - - var callbackExpirationTime = NoWork; - var callbackID = -1; - var isRendering = false; - var nextFlushedRoot = null; - var nextFlushedExpirationTime = NoWork; - var deadlineDidExpire = false; - var hasUnhandledError = false; - var unhandledError = null; - var deadline = null; - - var isBatchingUpdates = false; - var isUnbatchingUpdates = false; - - var completedBatches = null; - - // Use these to prevent an infinite loop of nested updates - var NESTED_UPDATE_LIMIT = 1000; - var nestedUpdateCount = 0; - - var timeHeuristicForUnitOfWork = 1; - - function scheduleCallbackWithExpiration(expirationTime) { - if (callbackExpirationTime !== NoWork) { - // A callback is already scheduled. Check its expiration time (timeout). - if (expirationTime > callbackExpirationTime) { - // Existing callback has sufficient timeout. Exit. - return; - } else { - // Existing callback has insufficient timeout. Cancel and schedule a - // new one. - cancelDeferredCallback(callbackID); - } - // The request callback timer is already running. Don't start a new one. - } else { - startRequestCallbackTimer(); - } - - // Compute a timeout for the given expiration time. - var currentMs = now() - startTime; - var expirationMs = expirationTimeToMs(expirationTime); - var timeout = expirationMs - currentMs; - - callbackExpirationTime = expirationTime; - callbackID = scheduleDeferredCallback(performAsyncWork, { - timeout: timeout - }); - } - - // requestWork is called by the scheduler whenever a root receives an update. - // It's up to the renderer to call renderRoot at some point in the future. - function requestWork(root, expirationTime) { - if (nestedUpdateCount > NESTED_UPDATE_LIMIT) { - invariant( - false, - "Maximum update depth exceeded. This can happen when a " + - "component repeatedly calls setState inside componentWillUpdate or " + - "componentDidUpdate. React limits the number of nested updates to " + - "prevent infinite loops." - ); - } - - // Add the root to the schedule. - // Check if this root is already part of the schedule. - if (root.nextScheduledRoot === null) { - // This root is not already scheduled. Add it. - root.remainingExpirationTime = expirationTime; - if (lastScheduledRoot === null) { - firstScheduledRoot = lastScheduledRoot = root; - root.nextScheduledRoot = root; - } else { - lastScheduledRoot.nextScheduledRoot = root; - lastScheduledRoot = root; - lastScheduledRoot.nextScheduledRoot = firstScheduledRoot; - } - } else { - // This root is already scheduled, but its priority may have increased. - var remainingExpirationTime = root.remainingExpirationTime; - if ( - remainingExpirationTime === NoWork || - expirationTime < remainingExpirationTime - ) { - // Update the priority. - root.remainingExpirationTime = expirationTime; - } - } - - if (isRendering) { - // Prevent reentrancy. Remaining work will be scheduled at the end of - // the currently rendering batch. - return; - } - - if (isBatchingUpdates) { - // Flush work at the end of the batch. - if (isUnbatchingUpdates) { - // ...unless we're inside unbatchedUpdates, in which case we should - // flush it now. - nextFlushedRoot = root; - nextFlushedExpirationTime = Sync; - performWorkOnRoot(root, Sync, recalculateCurrentTime()); - } - return; - } - - // TODO: Get rid of Sync and use current time? - if (expirationTime === Sync) { - performWork(Sync, null); - } else { - scheduleCallbackWithExpiration(expirationTime); - } - } - - function findHighestPriorityRoot() { - var highestPriorityWork = NoWork; - var highestPriorityRoot = null; - - if (lastScheduledRoot !== null) { - var previousScheduledRoot = lastScheduledRoot; - var root = firstScheduledRoot; - while (root !== null) { - var remainingExpirationTime = root.remainingExpirationTime; - if (remainingExpirationTime === NoWork) { - // This root no longer has work. Remove it from the scheduler. - - // TODO: This check is redudant, but Flow is confused by the branch - // below where we set lastScheduledRoot to null, even though we break - // from the loop right after. - invariant( - previousScheduledRoot !== null && lastScheduledRoot !== null, - "Should have a previous and last root. This error is likely " + - "caused by a bug in React. Please file an issue." - ); - if (root === root.nextScheduledRoot) { - // This is the only root in the list. - root.nextScheduledRoot = null; - firstScheduledRoot = lastScheduledRoot = null; - break; - } else if (root === firstScheduledRoot) { - // This is the first root in the list. - var next = root.nextScheduledRoot; - firstScheduledRoot = next; - lastScheduledRoot.nextScheduledRoot = next; - root.nextScheduledRoot = null; - } else if (root === lastScheduledRoot) { - // This is the last root in the list. - lastScheduledRoot = previousScheduledRoot; - lastScheduledRoot.nextScheduledRoot = firstScheduledRoot; - root.nextScheduledRoot = null; - break; - } else { - previousScheduledRoot.nextScheduledRoot = root.nextScheduledRoot; - root.nextScheduledRoot = null; - } - root = previousScheduledRoot.nextScheduledRoot; - } else { - if ( - highestPriorityWork === NoWork || - remainingExpirationTime < highestPriorityWork - ) { - // Update the priority, if it's higher - highestPriorityWork = remainingExpirationTime; - highestPriorityRoot = root; - } - if (root === lastScheduledRoot) { - break; - } - previousScheduledRoot = root; - root = root.nextScheduledRoot; - } - } - } - - // If the next root is the same as the previous root, this is a nested - // update. To prevent an infinite loop, increment the nested update count. - var previousFlushedRoot = nextFlushedRoot; - if ( - previousFlushedRoot !== null && - previousFlushedRoot === highestPriorityRoot - ) { - nestedUpdateCount++; - } else { - // Reset whenever we switch roots. - nestedUpdateCount = 0; - } - nextFlushedRoot = highestPriorityRoot; - nextFlushedExpirationTime = highestPriorityWork; - } - - function performAsyncWork(dl) { - performWork(NoWork, dl); - } - - function performWork(minExpirationTime, dl) { - deadline = dl; - - // Keep working on roots until there's no more work, or until the we reach - // the deadline. - findHighestPriorityRoot(); - - if (enableUserTimingAPI && deadline !== null) { - var didExpire = nextFlushedExpirationTime < recalculateCurrentTime(); - stopRequestCallbackTimer(didExpire); - } - - while ( - nextFlushedRoot !== null && - nextFlushedExpirationTime !== NoWork && - (minExpirationTime === NoWork || - nextFlushedExpirationTime <= minExpirationTime) && - !deadlineDidExpire - ) { - performWorkOnRoot( - nextFlushedRoot, - nextFlushedExpirationTime, - recalculateCurrentTime() - ); - // Find the next highest priority work. - findHighestPriorityRoot(); - } - - // We're done flushing work. Either we ran out of time in this callback, - // or there's no more work left with sufficient priority. - - // If we're inside a callback, set this to false since we just completed it. - if (deadline !== null) { - callbackExpirationTime = NoWork; - callbackID = -1; - } - // If there's work left over, schedule a new callback. - if (nextFlushedExpirationTime !== NoWork) { - scheduleCallbackWithExpiration(nextFlushedExpirationTime); - } - - // Clean-up. - deadline = null; - deadlineDidExpire = false; - nestedUpdateCount = 0; - - finishRendering(); - } - - function flushRoot(root, expirationTime) { - invariant( - !isRendering, - "work.commit(): Cannot commit while already rendering. This likely " + - "means you attempted to commit from inside a lifecycle method." - ); - // Perform work on root as if the given expiration time is the current time. - // This has the effect of synchronously flushing all work up to and - // including the given time. - performWorkOnRoot(root, expirationTime, expirationTime); - finishRendering(); - } - - function finishRendering() { - if (completedBatches !== null) { - var batches = completedBatches; - completedBatches = null; - for (var i = 0; i < batches.length; i++) { - var batch = batches[i]; - try { - batch._onComplete(); - } catch (error) { - if (!hasUnhandledError) { - hasUnhandledError = true; - unhandledError = error; - } - } - } - } - - if (hasUnhandledError) { - var _error4 = unhandledError; - unhandledError = null; - hasUnhandledError = false; - throw _error4; - } - } - - function performWorkOnRoot(root, expirationTime, currentTime) { - invariant( - !isRendering, - "performWorkOnRoot was called recursively. This error is likely caused " + - "by a bug in React. Please file an issue." - ); - - isRendering = true; - - // Check if this is async work or sync/expired work. - if (expirationTime <= currentTime) { - // Flush sync work. - var finishedWork = root.finishedWork; - if (finishedWork !== null) { - // This root is already complete. We can commit it. - completeRoot(root, finishedWork, expirationTime); - } else { - root.finishedWork = null; - finishedWork = renderRoot(root, expirationTime); - if (finishedWork !== null) { - // We've completed the root. Commit it. - completeRoot(root, finishedWork, expirationTime); - } - } - } else { - // Flush async work. - var _finishedWork = root.finishedWork; - if (_finishedWork !== null) { - // This root is already complete. We can commit it. - completeRoot(root, _finishedWork, expirationTime); - } else { - root.finishedWork = null; - _finishedWork = renderRoot(root, expirationTime); - if (_finishedWork !== null) { - // We've completed the root. Check the deadline one more time - // before committing. - if (!shouldYield()) { - // Still time left. Commit the root. - completeRoot(root, _finishedWork, expirationTime); - } else { - // There's no time left. Mark this root as complete. We'll come - // back and commit it later. - root.finishedWork = _finishedWork; - } - } - } - } - - isRendering = false; - } - - function completeRoot(root, finishedWork, expirationTime) { - // Check if there's a batch that matches this expiration time. - var firstBatch = root.firstBatch; - if (firstBatch !== null && firstBatch._expirationTime <= expirationTime) { - if (completedBatches === null) { - completedBatches = [firstBatch]; - } else { - completedBatches.push(firstBatch); - } - if (firstBatch._defer) { - // This root is blocked from committing by a batch. Unschedule it until - // we receive another update. - root.finishedWork = finishedWork; - root.remainingExpirationTime = NoWork; - return; - } - } - - // Commit the root. - root.finishedWork = null; - root.remainingExpirationTime = commitRoot(finishedWork); - } - - // When working on async work, the reconciler asks the renderer if it should - // yield execution. For DOM, we implement this with requestIdleCallback. - function shouldYield() { - if (deadline === null) { - return false; - } - if (deadline.timeRemaining() > timeHeuristicForUnitOfWork) { - // Disregard deadline.didTimeout. Only expired work should be flushed - // during a timeout. This path is only hit for non-expired work. - return false; - } - deadlineDidExpire = true; - return true; - } - - // TODO: Not happy about this hook. Conceptually, renderRoot should return a - // tuple of (isReadyForCommit, didError, error) - function onUncaughtError(error) { - invariant( - nextFlushedRoot !== null, - "Should be working on a root. This error is likely caused by a bug in " + - "React. Please file an issue." - ); - // Unschedule this root so we don't work on it again until there's - // another update. - nextFlushedRoot.remainingExpirationTime = NoWork; - if (!hasUnhandledError) { - hasUnhandledError = true; - unhandledError = error; - } - } - - // TODO: Batching should be implemented at the renderer level, not inside - // the reconciler. - function batchedUpdates(fn, a) { - var previousIsBatchingUpdates = isBatchingUpdates; - isBatchingUpdates = true; - try { - return fn(a); - } finally { - isBatchingUpdates = previousIsBatchingUpdates; - if (!isBatchingUpdates && !isRendering) { - performWork(Sync, null); - } - } - } - - // TODO: Batching should be implemented at the renderer level, not inside - // the reconciler. - function unbatchedUpdates(fn) { - if (isBatchingUpdates && !isUnbatchingUpdates) { - isUnbatchingUpdates = true; - try { - return fn(); - } finally { - isUnbatchingUpdates = false; - } - } - return fn(); - } - - // TODO: Batching should be implemented at the renderer level, not within - // the reconciler. - function flushSync(fn) { - var previousIsBatchingUpdates = isBatchingUpdates; - isBatchingUpdates = true; - try { - return syncUpdates(fn); - } finally { - isBatchingUpdates = previousIsBatchingUpdates; - invariant( - !isRendering, - "flushSync was called from inside a lifecycle method. It cannot be " + - "called when React is already rendering." - ); - performWork(Sync, null); - } - } - - return { - computeAsyncExpiration: computeAsyncExpiration, - computeExpirationForFiber: computeExpirationForFiber, - scheduleWork: scheduleWork, - requestWork: requestWork, - flushRoot: flushRoot, - batchedUpdates: batchedUpdates, - unbatchedUpdates: unbatchedUpdates, - flushSync: flushSync, - deferredUpdates: deferredUpdates, - computeUniqueAsyncExpiration: computeUniqueAsyncExpiration - }; -}; - -{ - var didWarnAboutNestedUpdates = false; -} - -// 0 is PROD, 1 is DEV. -// Might add PROFILE later. - -function getContextForSubtree(parentComponent) { - if (!parentComponent) { - return emptyObject; - } - - var fiber = get(parentComponent); - var parentContext = findCurrentUnmaskedContext(fiber); - return isContextProvider(fiber) - ? processChildContext(fiber, parentContext) - : parentContext; -} - -var ReactFiberReconciler$1 = function(config) { - var getPublicInstance = config.getPublicInstance; - - var _ReactFiberScheduler = ReactFiberScheduler(config), - computeAsyncExpiration = _ReactFiberScheduler.computeAsyncExpiration, - computeUniqueAsyncExpiration = - _ReactFiberScheduler.computeUniqueAsyncExpiration, - computeExpirationForFiber = _ReactFiberScheduler.computeExpirationForFiber, - scheduleWork = _ReactFiberScheduler.scheduleWork, - requestWork = _ReactFiberScheduler.requestWork, - flushRoot = _ReactFiberScheduler.flushRoot, - batchedUpdates = _ReactFiberScheduler.batchedUpdates, - unbatchedUpdates = _ReactFiberScheduler.unbatchedUpdates, - flushSync = _ReactFiberScheduler.flushSync, - deferredUpdates = _ReactFiberScheduler.deferredUpdates; - - function computeRootExpirationTime(current, element) { - var expirationTime = void 0; - // Check if the top-level element is an async wrapper component. If so, - // treat updates to the root as async. This is a bit weird but lets us - // avoid a separate `renderAsync` API. - if ( - enableAsyncSubtreeAPI && - element != null && - element.type != null && - element.type.prototype != null && - element.type.prototype.unstable_isAsyncReactComponent === true - ) { - expirationTime = computeAsyncExpiration(); - } else { - expirationTime = computeExpirationForFiber(current); - } - return expirationTime; - } - - function scheduleRootUpdate(current, element, expirationTime, callback) { - { - if ( - ReactDebugCurrentFiber.phase === "render" && - ReactDebugCurrentFiber.current !== null && - !didWarnAboutNestedUpdates - ) { - didWarnAboutNestedUpdates = true; - warning( - false, - "Render methods should be a pure function of props and state; " + - "triggering nested component updates from render is not allowed. " + - "If necessary, trigger nested updates in componentDidUpdate.\n\n" + - "Check the render method of %s.", - getComponentName(ReactDebugCurrentFiber.current) || "Unknown" - ); - } - } - - callback = callback === undefined ? null : callback; - { - warning( - callback === null || typeof callback === "function", - "render(...): Expected the last optional `callback` argument to be a " + - "function. Instead received: %s.", - callback - ); - } - - var update = { - expirationTime: expirationTime, - partialState: { element: element }, - callback: callback, - isReplace: false, - isForced: false, - next: null - }; - insertUpdateIntoFiber(current, update); - scheduleWork(current, expirationTime); - - return expirationTime; - } - - function updateContainerAtExpirationTime( - element, - container, - parentComponent, - expirationTime, - callback - ) { - // TODO: If this is a nested container, this won't be the root. - var current = container.current; - - { - if (ReactFiberInstrumentation_1.debugTool) { - if (current.alternate === null) { - ReactFiberInstrumentation_1.debugTool.onMountContainer(container); - } else if (element === null) { - ReactFiberInstrumentation_1.debugTool.onUnmountContainer(container); - } else { - ReactFiberInstrumentation_1.debugTool.onUpdateContainer(container); - } - } - } - - var context = getContextForSubtree(parentComponent); - if (container.context === null) { - container.context = context; - } else { - container.pendingContext = context; - } - - return scheduleRootUpdate(current, element, expirationTime, callback); - } - - function findHostInstance(fiber) { - var hostFiber = findCurrentHostFiber(fiber); - if (hostFiber === null) { - return null; - } - return hostFiber.stateNode; - } - - return { - createContainer: function(containerInfo, hydrate) { - return createFiberRoot(containerInfo, hydrate); - }, - updateContainer: function(element, container, parentComponent, callback) { - var current = container.current; - var expirationTime = computeRootExpirationTime(current, element); - return updateContainerAtExpirationTime( - element, - container, - parentComponent, - expirationTime, - callback - ); - }, - - updateContainerAtExpirationTime: updateContainerAtExpirationTime, - - flushRoot: flushRoot, - - requestWork: requestWork, - - computeUniqueAsyncExpiration: computeUniqueAsyncExpiration, - - batchedUpdates: batchedUpdates, - - unbatchedUpdates: unbatchedUpdates, - - deferredUpdates: deferredUpdates, - - flushSync: flushSync, - - getPublicRootInstance: function(container) { - var containerFiber = container.current; - if (!containerFiber.child) { - return null; - } - switch (containerFiber.child.tag) { - case HostComponent: - return getPublicInstance(containerFiber.child.stateNode); - default: - return containerFiber.child.stateNode; - } - }, - - findHostInstance: findHostInstance, - - findHostInstanceWithNoPortals: function(fiber) { - var hostFiber = findCurrentHostFiberWithNoPortals(fiber); - if (hostFiber === null) { - return null; - } - return hostFiber.stateNode; - }, - injectIntoDevTools: function(devToolsConfig) { - var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance; - - return injectInternals( - Object.assign({}, devToolsConfig, { - findHostInstanceByFiber: function(fiber) { - return findHostInstance(fiber); - }, - findFiberByHostInstance: function(instance) { - if (!findFiberByHostInstance) { - // Might not be implemented by the renderer. - return null; - } - return findFiberByHostInstance(instance); - } - }) - ); - } - }; -}; - -var ReactFiberReconciler$2 = Object.freeze({ - default: ReactFiberReconciler$1 -}); - -var ReactFiberReconciler$3 = - (ReactFiberReconciler$2 && ReactFiberReconciler$1) || ReactFiberReconciler$2; - -// TODO: bundle Flow types with the package. - -// TODO: decide on the top-level export form. -// This is hacky but makes it work with both Rollup and Jest. -var reactReconciler = ReactFiberReconciler$3["default"] - ? ReactFiberReconciler$3["default"] - : ReactFiberReconciler$3; - -var viewConfigCallbacks = new Map(); -var viewConfigs = new Map(); - -/** - * Registers a native view/component by name. - * A callback is provided to load the view config from UIManager. - * The callback is deferred until the view is actually rendered. - * This is done to avoid causing Prepack deopts. - */ -function register(name, callback) { - invariant( - !viewConfigCallbacks.has(name), - "Tried to register two views with the same name %s", - name - ); - viewConfigCallbacks.set(name, callback); - return name; -} - -/** - * Retrieves a config for the specified view. - * If this is the first time the view has been used, - * This configuration will be lazy-loaded from UIManager. - */ -function get$1(name) { - var viewConfig = void 0; - if (!viewConfigs.has(name)) { - var callback = viewConfigCallbacks.get(name); - invariant( - typeof callback === "function", - "View config not found for name %s", - name - ); - viewConfigCallbacks.set(name, null); - viewConfig = callback(); - viewConfigs.set(name, viewConfig); - } else { - viewConfig = viewConfigs.get(name); - } - invariant(viewConfig, "View config not found for name %s", name); - return viewConfig; -} - -function _classCallCheck$1(instance, Constructor) { - if (!(instance instanceof Constructor)) { - throw new TypeError("Cannot call a class as a function"); - } -} - -// Modules provided by RN: -/** - * This component defines the same methods as NativeMethodsMixin but without the - * findNodeHandle wrapper. This wrapper is unnecessary for HostComponent views - * and would also result in a circular require.js dependency (since - * ReactNativeFiber depends on this component and NativeMethodsMixin depends on - * ReactNativeFiber). - */ - -var ReactNativeFiberHostComponent = (function() { - function ReactNativeFiberHostComponent(tag, viewConfig) { - _classCallCheck$1(this, ReactNativeFiberHostComponent); - - this._nativeTag = tag; - this._children = []; - this.viewConfig = viewConfig; - } - - ReactNativeFiberHostComponent.prototype.blur = function blur() { - TextInputState.blurTextInput(this._nativeTag); - }; - - ReactNativeFiberHostComponent.prototype.focus = function focus() { - TextInputState.focusTextInput(this._nativeTag); - }; - - ReactNativeFiberHostComponent.prototype.measure = function measure(callback) { - UIManager.measure(this._nativeTag, mountSafeCallback(this, callback)); - }; - - ReactNativeFiberHostComponent.prototype.measureInWindow = function measureInWindow( - callback - ) { - UIManager.measureInWindow( - this._nativeTag, - mountSafeCallback(this, callback) - ); - }; - - ReactNativeFiberHostComponent.prototype.measureLayout = function measureLayout( - relativeToNativeNode, - onSuccess, - onFail /* currently unused */ - ) { - UIManager.measureLayout( - this._nativeTag, - relativeToNativeNode, - mountSafeCallback(this, onFail), - mountSafeCallback(this, onSuccess) - ); - }; - - ReactNativeFiberHostComponent.prototype.setNativeProps = function setNativeProps( - nativeProps - ) { - { - warnForStyleProps(nativeProps, this.viewConfig.validAttributes); - } - - var updatePayload = create(nativeProps, this.viewConfig.validAttributes); - - // Avoid the overhead of bridge calls if there's no update. - // This is an expensive no-op for Android, and causes an unnecessary - // view invalidation for certain components (eg RCTTextInput) on iOS. - if (updatePayload != null) { - UIManager.updateView( - this._nativeTag, - this.viewConfig.uiViewClassName, - updatePayload - ); - } - }; - - return ReactNativeFiberHostComponent; -})(); - -var hasNativePerformanceNow = - typeof performance === "object" && typeof performance.now === "function"; - -var now = hasNativePerformanceNow - ? function() { - return performance.now(); - } - : function() { - return Date.now(); - }; - -var scheduledCallback = null; -var frameDeadline = 0; - -var frameDeadlineObject = { - timeRemaining: function() { - return frameDeadline - now(); - } -}; - -function setTimeoutCallback() { - // TODO (bvaughn) Hard-coded 5ms unblocks initial async testing. - // React API probably changing to boolean rather than time remaining. - // Longer-term plan is to rewrite this using shared memory, - // And just return the value of the bit as the boolean. - frameDeadline = now() + 5; - - var callback = scheduledCallback; - scheduledCallback = null; - if (callback !== null) { - callback(frameDeadlineObject); - } -} - -// RN has a poor polyfill for requestIdleCallback so we aren't using it. -// This implementation is only intended for short-term use anyway. -// We also don't implement cancel functionality b'c Fiber doesn't currently need it. -function scheduleDeferredCallback(callback) { - // We assume only one callback is scheduled at a time b'c that's how Fiber works. - scheduledCallback = callback; - return setTimeout(setTimeoutCallback, 1); -} - -function cancelDeferredCallback(callbackID) { - scheduledCallback = null; - clearTimeout(callbackID); -} - -// Modules provided by RN: -function recursivelyUncacheFiberNode(node) { - if (typeof node === "number") { - // Leaf node (eg text) - uncacheFiberNode(node); - } else { - uncacheFiberNode(node._nativeTag); - - node._children.forEach(recursivelyUncacheFiberNode); - } -} - -var NativeRenderer = reactReconciler({ - appendInitialChild: function(parentInstance, child) { - parentInstance._children.push(child); - }, - createInstance: function( - type, - props, - rootContainerInstance, - hostContext, - internalInstanceHandle - ) { - var tag = ReactNativeTagHandles.allocateTag(); - var viewConfig = get$1(type); - - { - for (var key in viewConfig.validAttributes) { - if (props.hasOwnProperty(key)) { - deepFreezeAndThrowOnMutationInDev(props[key]); - } - } - } - - var updatePayload = create(props, viewConfig.validAttributes); - - UIManager.createView( - tag, // reactTag - viewConfig.uiViewClassName, // viewName - rootContainerInstance, // rootTag - updatePayload - ); - - var component = new ReactNativeFiberHostComponent(tag, viewConfig); - - precacheFiberNode(internalInstanceHandle, tag); - updateFiberProps(tag, props); - - // Not sure how to avoid this cast. Flow is okay if the component is defined - // in the same file but if it's external it can't see the types. - return component; - }, - createTextInstance: function( - text, - rootContainerInstance, - hostContext, - internalInstanceHandle - ) { - var tag = ReactNativeTagHandles.allocateTag(); - - UIManager.createView( - tag, // reactTag - "RCTRawText", // viewName - rootContainerInstance, // rootTag - { text: text } - ); - - precacheFiberNode(internalInstanceHandle, tag); - - return tag; - }, - finalizeInitialChildren: function( - parentInstance, - type, - props, - rootContainerInstance - ) { - // Don't send a no-op message over the bridge. - if (parentInstance._children.length === 0) { - return false; - } - - // Map from child objects to native tags. - // Either way we need to pass a copy of the Array to prevent it from being frozen. - var nativeTags = parentInstance._children.map(function(child) { - return typeof child === "number" - ? child // Leaf node (eg text) - : child._nativeTag; - }); - - UIManager.setChildren( - parentInstance._nativeTag, // containerTag - nativeTags - ); - - return false; - }, - getRootHostContext: function() { - return emptyObject; - }, - getChildHostContext: function() { - return emptyObject; - }, - getPublicInstance: function(instance) { - return instance; - }, - - now: now, - - prepareForCommit: function() { - // Noop - }, - prepareUpdate: function( - instance, - type, - oldProps, - newProps, - rootContainerInstance, - hostContext - ) { - return emptyObject; - }, - resetAfterCommit: function() { - // Noop - }, - - scheduleDeferredCallback: scheduleDeferredCallback, - cancelDeferredCallback: cancelDeferredCallback, - - shouldDeprioritizeSubtree: function(type, props) { - return false; - }, - shouldSetTextContent: function(type, props) { - // TODO (bvaughn) Revisit this decision. - // Always returning false simplifies the createInstance() implementation, - // But creates an additional child Fiber for raw text children. - // No additional native views are created though. - // It's not clear to me which is better so I'm deferring for now. - // More context @ github.com/facebook/react/pull/8560#discussion_r92111303 - return false; - }, - - useSyncScheduling: true, - - mutation: { - appendChild: function(parentInstance, child) { - var childTag = typeof child === "number" ? child : child._nativeTag; - var children = parentInstance._children; - var index = children.indexOf(child); - - if (index >= 0) { - children.splice(index, 1); - children.push(child); - - UIManager.manageChildren( - parentInstance._nativeTag, // containerTag - [index], // moveFromIndices - [children.length - 1], // moveToIndices - [], // addChildReactTags - [], // addAtIndices - [] - ); - } else { - children.push(child); - - UIManager.manageChildren( - parentInstance._nativeTag, // containerTag - [], // moveFromIndices - [], // moveToIndices - [childTag], // addChildReactTags - [children.length - 1], // addAtIndices - [] - ); - } - }, - appendChildToContainer: function(parentInstance, child) { - var childTag = typeof child === "number" ? child : child._nativeTag; - UIManager.setChildren( - parentInstance, // containerTag - [childTag] - ); - }, - commitTextUpdate: function(textInstance, oldText, newText) { - UIManager.updateView( - textInstance, // reactTag - "RCTRawText", // viewName - { text: newText } - ); - }, - commitMount: function(instance, type, newProps, internalInstanceHandle) { - // Noop - }, - commitUpdate: function( - instance, - updatePayloadTODO, - type, - oldProps, - newProps, - internalInstanceHandle - ) { - var viewConfig = instance.viewConfig; - - updateFiberProps(instance._nativeTag, newProps); - - var updatePayload = diff(oldProps, newProps, viewConfig.validAttributes); - - // Avoid the overhead of bridge calls if there's no update. - // This is an expensive no-op for Android, and causes an unnecessary - // view invalidation for certain components (eg RCTTextInput) on iOS. - if (updatePayload != null) { - UIManager.updateView( - instance._nativeTag, // reactTag - viewConfig.uiViewClassName, // viewName - updatePayload - ); - } - }, - insertBefore: function(parentInstance, child, beforeChild) { - var children = parentInstance._children; - var index = children.indexOf(child); - - // Move existing child or add new child? - if (index >= 0) { - children.splice(index, 1); - var beforeChildIndex = children.indexOf(beforeChild); - children.splice(beforeChildIndex, 0, child); - - UIManager.manageChildren( - parentInstance._nativeTag, // containerID - [index], // moveFromIndices - [beforeChildIndex], // moveToIndices - [], // addChildReactTags - [], // addAtIndices - [] - ); - } else { - var _beforeChildIndex = children.indexOf(beforeChild); - children.splice(_beforeChildIndex, 0, child); - - var childTag = typeof child === "number" ? child : child._nativeTag; - - UIManager.manageChildren( - parentInstance._nativeTag, // containerID - [], // moveFromIndices - [], // moveToIndices - [childTag], // addChildReactTags - [_beforeChildIndex], // addAtIndices - [] - ); - } - }, - insertInContainerBefore: function(parentInstance, child, beforeChild) { - // TODO (bvaughn): Remove this check when... - // We create a wrapper object for the container in ReactNative render() - // Or we refactor to remove wrapper objects entirely. - // For more info on pros/cons see PR #8560 description. - invariant( - typeof parentInstance !== "number", - "Container does not support insertBefore operation" - ); - }, - removeChild: function(parentInstance, child) { - recursivelyUncacheFiberNode(child); - var children = parentInstance._children; - var index = children.indexOf(child); - - children.splice(index, 1); - - UIManager.manageChildren( - parentInstance._nativeTag, // containerID - [], // moveFromIndices - [], // moveToIndices - [], // addChildReactTags - [], // addAtIndices - [index] - ); - }, - removeChildFromContainer: function(parentInstance, child) { - recursivelyUncacheFiberNode(child); - UIManager.manageChildren( - parentInstance, // containerID - [], // moveFromIndices - [], // moveToIndices - [], // addChildReactTags - [], // addAtIndices - [0] - ); - }, - resetTextContent: function(instance) { - // Noop - } - } -}); - -/** - * ReactNative vs ReactWeb - * ----------------------- - * React treats some pieces of data opaquely. This means that the information - * is first class (it can be passed around), but cannot be inspected. This - * allows us to build infrastructure that reasons about resources, without - * making assumptions about the nature of those resources, and this allows that - * infra to be shared across multiple platforms, where the resources are very - * different. General infra (such as `ReactMultiChild`) reasons opaquely about - * the data, but platform specific code (such as `ReactNativeBaseComponent`) can - * make assumptions about the data. - * - * - * `rootNodeID`, uniquely identifies a position in the generated native view - * tree. Many layers of composite components (created with `React.createClass`) - * can all share the same `rootNodeID`. - * - * `nodeHandle`: A sufficiently unambiguous way to refer to a lower level - * resource (dom node, native view etc). The `rootNodeID` is sufficient for web - * `nodeHandle`s, because the position in a tree is always enough to uniquely - * identify a DOM node (we never have nodes in some bank outside of the - * document). The same would be true for `ReactNative`, but we must maintain a - * mapping that we can send efficiently serializable - * strings across native boundaries. - * - * Opaque name TodaysWebReact FutureWebWorkerReact ReactNative - * ---------------------------------------------------------------------------- - * nodeHandle N/A rootNodeID tag - */ - -// TODO (bvaughn) Rename the findNodeHandle module to something more descriptive -// eg findInternalHostInstance. This will reduce the likelihood of someone -// accidentally deep-requiring this version. -function findNodeHandle(componentOrHandle) { - { - var owner = ReactCurrentOwner.current; - if (owner !== null && owner.stateNode !== null) { - warning( - owner.stateNode._warnedAboutRefsInRender, - "%s is accessing findNodeHandle inside its render(). " + - "render() should be a pure function of props and state. It should " + - "never access something that requires stale data from the previous " + - "render, such as refs. Move this logic to componentDidMount and " + - "componentDidUpdate instead.", - getComponentName(owner) || "A component" - ); - - owner.stateNode._warnedAboutRefsInRender = true; - } - } - if (componentOrHandle == null) { - return null; - } - if (typeof componentOrHandle === "number") { - // Already a node handle - return componentOrHandle; - } - - var component = componentOrHandle; - - // TODO (balpert): Wrap iOS native components in a composite wrapper, then - // ReactInstanceMap.get here will always succeed for mounted components - var internalInstance = get(component); - if (internalInstance) { - return NativeRenderer.findHostInstance(internalInstance); - } else { - if (component) { - return component; - } else { - invariant( - // Native - (typeof component === "object" && "_nativeTag" in component) || - // Composite - (component.render != null && typeof component.render === "function"), - "findNodeHandle(...): Argument is not a component " + - "(type: %s, keys: %s)", - typeof component, - Object.keys(component) - ); - invariant( - false, - "findNodeHandle(...): Unable to find node handle for unmounted " + - "component." - ); - } - } -} - -/** - * External users of findNodeHandle() expect the host tag number return type. - * The injected findNodeHandle() strategy returns the instance wrapper though. - * See NativeMethodsMixin#setNativeProps for more info on why this is done. - */ -function findNumericNodeHandleFiber(componentOrHandle) { - var instance = findNodeHandle(componentOrHandle); - if (instance == null || typeof instance === "number") { - return instance; - } - return instance._nativeTag; -} - -// Modules provided by RN: -/** - * `NativeMethodsMixin` provides methods to access the underlying native - * component directly. This can be useful in cases when you want to focus - * a view or measure its on-screen dimensions, for example. - * - * The methods described here are available on most of the default components - * provided by React Native. Note, however, that they are *not* available on - * composite components that aren't directly backed by a native view. This will - * generally include most components that you define in your own app. For more - * information, see [Direct - * Manipulation](docs/direct-manipulation.html). - * - * Note the Flow $Exact<> syntax is required to support mixins. - * React createClass mixins can only be used with exact types. - */ -var NativeMethodsMixin = { - /** - * Determines the location on screen, width, and height of the given view and - * returns the values via an async callback. If successful, the callback will - * be called with the following arguments: - * - * - x - * - y - * - width - * - height - * - pageX - * - pageY - * - * Note that these measurements are not available until after the rendering - * has been completed in native. If you need the measurements as soon as - * possible, consider using the [`onLayout` - * prop](docs/view.html#onlayout) instead. - */ - measure: function(callback) { - UIManager.measure( - findNumericNodeHandleFiber(this), - mountSafeCallback(this, callback) - ); - }, - - /** - * Determines the location of the given view in the window and returns the - * values via an async callback. If the React root view is embedded in - * another native view, this will give you the absolute coordinates. If - * successful, the callback will be called with the following - * arguments: - * - * - x - * - y - * - width - * - height - * - * Note that these measurements are not available until after the rendering - * has been completed in native. - */ - measureInWindow: function(callback) { - UIManager.measureInWindow( - findNumericNodeHandleFiber(this), - mountSafeCallback(this, callback) - ); - }, - - /** - * Like [`measure()`](#measure), but measures the view relative an ancestor, - * specified as `relativeToNativeNode`. This means that the returned x, y - * are relative to the origin x, y of the ancestor view. - * - * As always, to obtain a native node handle for a component, you can use - * `findNumericNodeHandle(component)`. - */ - measureLayout: function( - relativeToNativeNode, - onSuccess, - onFail /* currently unused */ - ) { - UIManager.measureLayout( - findNumericNodeHandleFiber(this), - relativeToNativeNode, - mountSafeCallback(this, onFail), - mountSafeCallback(this, onSuccess) - ); - }, - - /** - * This function sends props straight to native. They will not participate in - * future diff process - this means that if you do not include them in the - * next render, they will remain active (see [Direct - * Manipulation](docs/direct-manipulation.html)). - */ - setNativeProps: function(nativeProps) { - // Class components don't have viewConfig -> validateAttributes. - // Nor does it make sense to set native props on a non-native component. - // Instead, find the nearest host component and set props on it. - // Use findNodeHandle() rather than findNumericNodeHandle() because - // We want the instance/wrapper (not the native tag). - var maybeInstance = void 0; - - // Fiber errors if findNodeHandle is called for an umounted component. - // Tests using ReactTestRenderer will trigger this case indirectly. - // Mimicking stack behavior, we should silently ignore this case. - // TODO Fix ReactTestRenderer so we can remove this try/catch. - try { - maybeInstance = findNodeHandle(this); - } catch (error) {} - - // If there is no host component beneath this we should fail silently. - // This is not an error; it could mean a class component rendered null. - if (maybeInstance == null) { - return; - } - - var viewConfig = maybeInstance.viewConfig; - - { - warnForStyleProps(nativeProps, viewConfig.validAttributes); - } - - var updatePayload = create(nativeProps, viewConfig.validAttributes); - - // Avoid the overhead of bridge calls if there's no update. - // This is an expensive no-op for Android, and causes an unnecessary - // view invalidation for certain components (eg RCTTextInput) on iOS. - if (updatePayload != null) { - UIManager.updateView( - maybeInstance._nativeTag, - viewConfig.uiViewClassName, - updatePayload - ); - } - }, - - /** - * Requests focus for the given input or view. The exact behavior triggered - * will depend on the platform and type of view. - */ - focus: function() { - TextInputState.focusTextInput(findNumericNodeHandleFiber(this)); - }, - - /** - * Removes focus from an input or view. This is the opposite of `focus()`. - */ - blur: function() { - TextInputState.blurTextInput(findNumericNodeHandleFiber(this)); - } -}; - -{ - // hide this from Flow since we can't define these properties outside of - // true without actually implementing them (setting them to undefined - // isn't allowed by ReactClass) - var NativeMethodsMixin_DEV = NativeMethodsMixin; - invariant( - !NativeMethodsMixin_DEV.componentWillMount && - !NativeMethodsMixin_DEV.componentWillReceiveProps, - "Do not override existing functions." - ); - NativeMethodsMixin_DEV.componentWillMount = function() { - throwOnStylesProp(this, this.props); - }; - NativeMethodsMixin_DEV.componentWillReceiveProps = function(newProps) { - throwOnStylesProp(this, newProps); - }; -} - -function _classCallCheck$2(instance, Constructor) { - if (!(instance instanceof Constructor)) { - throw new TypeError("Cannot call a class as a function"); - } -} - -function _possibleConstructorReturn(self, call) { - if (!self) { - throw new ReferenceError( - "this hasn't been initialised - super() hasn't been called" - ); - } - return call && (typeof call === "object" || typeof call === "function") - ? call - : self; -} - -function _inherits(subClass, superClass) { - if (typeof superClass !== "function" && superClass !== null) { - throw new TypeError( - "Super expression must either be null or a function, not " + - typeof superClass - ); - } - subClass.prototype = Object.create(superClass && superClass.prototype, { - constructor: { - value: subClass, - enumerable: false, - writable: true, - configurable: true - } - }); - if (superClass) - Object.setPrototypeOf - ? Object.setPrototypeOf(subClass, superClass) - : (subClass.__proto__ = superClass); -} - -// Modules provided by RN: -/** - * Superclass that provides methods to access the underlying native component. - * This can be useful when you want to focus a view or measure its dimensions. - * - * Methods implemented by this class are available on most default components - * provided by React Native. However, they are *not* available on composite - * components that are not directly backed by a native view. For more - * information, see [Direct Manipulation](docs/direct-manipulation.html). - * - * @abstract - */ - -var ReactNativeComponent = (function(_React$Component) { - _inherits(ReactNativeComponent, _React$Component); - - function ReactNativeComponent() { - _classCallCheck$2(this, ReactNativeComponent); - - return _possibleConstructorReturn( - this, - _React$Component.apply(this, arguments) - ); - } - - /** - * Removes focus. This is the opposite of `focus()`. - */ - ReactNativeComponent.prototype.blur = function blur() { - TextInputState.blurTextInput(findNumericNodeHandleFiber(this)); - }; - - /** - * Requests focus. The exact behavior depends on the platform and view. - */ - - ReactNativeComponent.prototype.focus = function focus() { - TextInputState.focusTextInput(findNumericNodeHandleFiber(this)); - }; - - /** - * Measures the on-screen location and dimensions. If successful, the callback - * will be called asynchronously with the following arguments: - * - * - x - * - y - * - width - * - height - * - pageX - * - pageY - * - * These values are not available until after natives rendering completes. If - * you need the measurements as soon as possible, consider using the - * [`onLayout` prop](docs/view.html#onlayout) instead. - */ - - ReactNativeComponent.prototype.measure = function measure(callback) { - UIManager.measure( - findNumericNodeHandleFiber(this), - mountSafeCallback(this, callback) - ); - }; - - /** - * Measures the on-screen location and dimensions. Even if the React Native - * root view is embedded within another native view, this method will give you - * the absolute coordinates measured from the window. If successful, the - * callback will be called asynchronously with the following arguments: - * - * - x - * - y - * - width - * - height - * - * These values are not available until after natives rendering completes. - */ - - ReactNativeComponent.prototype.measureInWindow = function measureInWindow( - callback - ) { - UIManager.measureInWindow( - findNumericNodeHandleFiber(this), - mountSafeCallback(this, callback) - ); - }; - - /** - * Similar to [`measure()`](#measure), but the resulting location will be - * relative to the supplied ancestor's location. - * - * Obtain a native node handle with `ReactNative.findNodeHandle(component)`. - */ - - ReactNativeComponent.prototype.measureLayout = function measureLayout( - relativeToNativeNode, - onSuccess, - onFail /* currently unused */ - ) { - UIManager.measureLayout( - findNumericNodeHandleFiber(this), - relativeToNativeNode, - mountSafeCallback(this, onFail), - mountSafeCallback(this, onSuccess) - ); - }; - - /** - * This function sends props straight to native. They will not participate in - * future diff process - this means that if you do not include them in the - * next render, they will remain active (see [Direct - * Manipulation](docs/direct-manipulation.html)). - */ - - ReactNativeComponent.prototype.setNativeProps = function setNativeProps( - nativeProps - ) { - // Class components don't have viewConfig -> validateAttributes. - // Nor does it make sense to set native props on a non-native component. - // Instead, find the nearest host component and set props on it. - // Use findNodeHandle() rather than ReactNative.findNodeHandle() because - // We want the instance/wrapper (not the native tag). - var maybeInstance = void 0; - - // Fiber errors if findNodeHandle is called for an umounted component. - // Tests using ReactTestRenderer will trigger this case indirectly. - // Mimicking stack behavior, we should silently ignore this case. - // TODO Fix ReactTestRenderer so we can remove this try/catch. - try { - maybeInstance = findNodeHandle(this); - } catch (error) {} - - // If there is no host component beneath this we should fail silently. - // This is not an error; it could mean a class component rendered null. - if (maybeInstance == null) { - return; - } - - var viewConfig = maybeInstance.viewConfig; - - var updatePayload = create(nativeProps, viewConfig.validAttributes); - - // Avoid the overhead of bridge calls if there's no update. - // This is an expensive no-op for Android, and causes an unnecessary - // view invalidation for certain components (eg RCTTextInput) on iOS. - if (updatePayload != null) { - UIManager.updateView( - maybeInstance._nativeTag, - viewConfig.uiViewClassName, - updatePayload - ); - } - }; - - return ReactNativeComponent; -})(React.Component); - -// Module provided by RN: -var getInspectorDataForViewTag = void 0; - -{ - var traverseOwnerTreeUp = function(hierarchy, instance) { - if (instance) { - hierarchy.unshift(instance); - traverseOwnerTreeUp(hierarchy, instance._debugOwner); - } - }; - - var getOwnerHierarchy = function(instance) { - var hierarchy = []; - traverseOwnerTreeUp(hierarchy, instance); - return hierarchy; - }; - - var lastNonHostInstance = function(hierarchy) { - for (var i = hierarchy.length - 1; i > 1; i--) { - var instance = hierarchy[i]; - - if (instance.tag !== HostComponent) { - return instance; - } - } - return hierarchy[0]; - }; - - var getHostProps = function(fiber) { - var host = findCurrentHostFiber(fiber); - if (host) { - return host.memoizedProps || emptyObject; - } - return emptyObject; - }; - - var getHostNode = function(fiber, findNodeHandle) { - var hostNode = void 0; - // look for children first for the hostNode - // as composite fibers do not have a hostNode - while (fiber) { - if (fiber.stateNode !== null && fiber.tag === HostComponent) { - hostNode = findNodeHandle(fiber.stateNode); - } - if (hostNode) { - return hostNode; - } - fiber = fiber.child; - } - return null; - }; - - var createHierarchy = function(fiberHierarchy) { - return fiberHierarchy.map(function(fiber) { - return { - name: getComponentName(fiber), - getInspectorData: function(findNodeHandle) { - return { - measure: function(callback) { - return UIManager.measure( - getHostNode(fiber, findNodeHandle), - callback - ); - }, - props: getHostProps(fiber), - source: fiber._debugSource - }; - } - }; - }); - }; - - getInspectorDataForViewTag = function(viewTag) { - var closestInstance = getInstanceFromTag(viewTag); - - // Handle case where user clicks outside of ReactNative - if (!closestInstance) { - return { - hierarchy: [], - props: emptyObject, - selection: null, - source: null - }; - } - - var fiber = findCurrentFiberUsingSlowPath(closestInstance); - var fiberHierarchy = getOwnerHierarchy(fiber); - var instance = lastNonHostInstance(fiberHierarchy); - var hierarchy = createHierarchy(fiberHierarchy); - var props = getHostProps(instance); - var source = instance._debugSource; - var selection = fiberHierarchy.indexOf(instance); - - return { - hierarchy: hierarchy, - props: props, - selection: selection, - source: source - }; - }; -} - -/** - * Creates a renderable ReactNative host component. - * Use this method for view configs that are loaded from UIManager. - * Use createReactNativeComponentClass() for view configs defined within JavaScript. - * - * @param {string} config iOS View configuration. - * @private - */ -var createReactNativeComponentClass = function(name, callback) { - return register(name, callback); -}; - -// Module provided by RN: -/** - * Capture an image of the screen, window or an individual view. The image - * will be stored in a temporary file that will only exist for as long as the - * app is running. - * - * The `view` argument can be the literal string `window` if you want to - * capture the entire window, or it can be a reference to a specific - * React Native component. - * - * The `options` argument may include: - * - width/height (number) - the width and height of the image to capture. - * - format (string) - either 'png' or 'jpeg'. Defaults to 'png'. - * - quality (number) - the quality when using jpeg. 0.0 - 1.0 (default). - * - * Returns a Promise. - * @platform ios - */ -function takeSnapshot(view, options) { - if (typeof view !== "number" && view !== "window") { - view = findNumericNodeHandleFiber(view) || "window"; - } - - // Call the hidden '__takeSnapshot' method; the main one throws an error to - // prevent accidental backwards-incompatible usage. - return UIManager.__takeSnapshot(view, options); -} - -// TODO: direct imports like some-package/src/* are bad. Fix me. -// Module provided by RN: -injection$2.injectFiberBatchedUpdates(NativeRenderer.batchedUpdates); - -var roots = new Map(); - -// Intercept lifecycle errors and ensure they are shown with the correct stack -// trace within the native redbox component. -injection$4.injectDialog(showDialog$1); - -var ReactNativeRenderer = { - NativeComponent: ReactNativeComponent, - - findNodeHandle: findNumericNodeHandleFiber, - - render: function(element, containerTag, callback) { - var root = roots.get(containerTag); - - if (!root) { - // TODO (bvaughn): If we decide to keep the wrapper component, - // We could create a wrapper for containerTag as well to reduce special casing. - root = NativeRenderer.createContainer(containerTag, false); - roots.set(containerTag, root); - } - NativeRenderer.updateContainer(element, root, null, callback); - - return NativeRenderer.getPublicRootInstance(root); - }, - unmountComponentAtNode: function(containerTag) { - var root = roots.get(containerTag); - if (root) { - // TODO: Is it safe to reset this now or should I wait since this unmount could be deferred? - NativeRenderer.updateContainer(null, root, null, function() { - roots["delete"](containerTag); - }); - } - }, - unmountComponentAtNodeAndRemoveContainer: function(containerTag) { - ReactNativeRenderer.unmountComponentAtNode(containerTag); - - // Call back into native to remove all of the subviews from this container - UIManager.removeRootView(containerTag); - }, - createPortal: function(children, containerTag) { - var key = - arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null; - - return createPortal(children, containerTag, null, key); - }, - - unstable_batchedUpdates: batchedUpdates, - - flushSync: NativeRenderer.flushSync, - - __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: { - // Used as a mixin in many createClass-based components - NativeMethodsMixin: NativeMethodsMixin, - // Used by react-native-github/Libraries/ components - ReactNativeBridgeEventPlugin: ReactNativeBridgeEventPlugin, // requireNativeComponent - ReactGlobalSharedState: ReactGlobalSharedState, // Systrace - ReactNativeComponentTree: ReactNativeComponentTree, // InspectorUtils, ScrollResponder - ReactNativePropRegistry: ReactNativePropRegistry, // flattenStyle, Stylesheet - TouchHistoryMath: TouchHistoryMath, // PanResponder - createReactNativeComponentClass: createReactNativeComponentClass, // RCTText, RCTView, ReactNativeART - takeSnapshot: takeSnapshot - } -}; - -{ - // $FlowFixMe - Object.assign( - ReactNativeRenderer.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, - { - // TODO: none of these work since Fiber. Remove these dependencies. - // Used by RCTRenderingPerf, Systrace: - ReactDebugTool: { - addHook: function() {}, - removeHook: function() {} - }, - // Used by ReactPerfStallHandler, RCTRenderingPerf: - ReactPerf: { - start: function() {}, - stop: function() {}, - printInclusive: function() {}, - printWasted: function() {} - } - } - ); -} - -NativeRenderer.injectIntoDevTools({ - findFiberByHostInstance: getInstanceFromTag, - getInspectorDataForViewTag: getInspectorDataForViewTag, - bundleType: 1, - version: ReactVersion, - rendererPackageName: "react-native-renderer" -}); - -var ReactNativeRenderer$2 = Object.freeze({ - default: ReactNativeRenderer -}); - -var ReactNativeRenderer$3 = - (ReactNativeRenderer$2 && ReactNativeRenderer) || ReactNativeRenderer$2; - -// TODO: decide on the top-level export form. -// This is hacky but makes it work with both Rollup and Jest. -var reactNativeRenderer = ReactNativeRenderer$3["default"] - ? ReactNativeRenderer$3["default"] - : ReactNativeRenderer$3; - -module.exports = reactNativeRenderer; - - })(); -}