{"ast":null,"code":"/** @license React v16.12.0\n * react.development.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict';\n\nif (process.env.NODE_ENV !== \"production\") {\n (function () {\n 'use strict';\n\n var _assign = require('object-assign');\n\n var checkPropTypes = require('prop-types/checkPropTypes'); // TODO: this is special because it gets imported during build.\n\n\n var ReactVersion = '16.12.0'; // The Symbol used to tag the ReactElement-like types. If there is no native Symbol\n // nor polyfill, then a plain number is used for performance.\n\n var hasSymbol = typeof Symbol === 'function' && Symbol.for;\n var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;\n var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;\n var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;\n var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;\n var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;\n var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;\n var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace; // TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary\n // (unstable) APIs that have been removed. Can we remove the symbols?\n\n var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;\n var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;\n var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;\n var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;\n var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;\n var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;\n var REACT_FUNDAMENTAL_TYPE = hasSymbol ? Symbol.for('react.fundamental') : 0xead5;\n var REACT_RESPONDER_TYPE = hasSymbol ? Symbol.for('react.responder') : 0xead6;\n var REACT_SCOPE_TYPE = hasSymbol ? Symbol.for('react.scope') : 0xead7;\n var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;\n var FAUX_ITERATOR_SYMBOL = '@@iterator';\n\n function getIteratorFn(maybeIterable) {\n if (maybeIterable === null || typeof maybeIterable !== 'object') {\n return null;\n }\n\n var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];\n\n if (typeof maybeIterator === 'function') {\n return maybeIterator;\n }\n\n return null;\n } // Do not require this module directly! Use normal `invariant` calls with\n // template literal strings. The messages will be replaced with error codes\n // during build.\n\n /**\n * Use invariant() to assert state which your program assumes to be true.\n *\n * Provide sprintf-style format (only %s is supported) and arguments\n * to provide information about what broke and what you were\n * expecting.\n *\n * The invariant message will be stripped in production, but the invariant\n * will remain to ensure logic does not differ in production.\n */\n\n /**\n * Forked from fbjs/warning:\n * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js\n *\n * Only change is we use console.warn instead of console.error,\n * and do nothing when 'console' is not supported.\n * This really simplifies the code.\n * ---\n * Similar to invariant but only logs a warning if the condition is not met.\n * This can be used to log issues in development environments in critical\n * paths. Removing the logging code for production environments will keep the\n * same logic and follow the same code paths.\n */\n\n\n var lowPriorityWarningWithoutStack = function lowPriorityWarningWithoutStack() {};\n\n {\n var printWarning = function printWarning(format) {\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n var argIndex = 0;\n var message = 'Warning: ' + format.replace(/%s/g, function () {\n return args[argIndex++];\n });\n\n if (typeof console !== 'undefined') {\n console.warn(message);\n }\n\n try {\n // --- Welcome to debugging React ---\n // This error was thrown as a convenience so that you can use this stack\n // to find the callsite that caused this warning to fire.\n throw new Error(message);\n } catch (x) {}\n };\n\n lowPriorityWarningWithoutStack = function lowPriorityWarningWithoutStack(condition, format) {\n if (format === undefined) {\n throw new Error('`lowPriorityWarningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');\n }\n\n if (!condition) {\n for (var _len2 = arguments.length, args = new Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {\n args[_key2 - 2] = arguments[_key2];\n }\n\n printWarning.apply(void 0, [format].concat(args));\n }\n };\n }\n var lowPriorityWarningWithoutStack$1 = lowPriorityWarningWithoutStack;\n /**\n * Similar to invariant but only logs a warning if the condition is not met.\n * This can be used to log issues in development environments in critical\n * paths. Removing the logging code for production environments will keep the\n * same logic and follow the same code paths.\n */\n\n var warningWithoutStack = function warningWithoutStack() {};\n\n {\n warningWithoutStack = function warningWithoutStack(condition, format) {\n for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {\n args[_key - 2] = arguments[_key];\n }\n\n if (format === undefined) {\n throw new Error('`warningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');\n }\n\n if (args.length > 8) {\n // Check before the condition to catch violations early.\n throw new Error('warningWithoutStack() currently supports at most 8 arguments.');\n }\n\n if (condition) {\n return;\n }\n\n if (typeof console !== 'undefined') {\n var argsWithFormat = args.map(function (item) {\n return '' + item;\n });\n argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it\n // breaks IE9: https://github.com/facebook/react/issues/13610\n\n Function.prototype.apply.call(console.error, console, argsWithFormat);\n }\n\n try {\n // --- Welcome to debugging React ---\n // This error was thrown as a convenience so that you can use this stack\n // to find the callsite that caused this warning to fire.\n var argIndex = 0;\n var message = 'Warning: ' + format.replace(/%s/g, function () {\n return args[argIndex++];\n });\n throw new Error(message);\n } catch (x) {}\n };\n }\n var warningWithoutStack$1 = warningWithoutStack;\n var didWarnStateUpdateForUnmountedComponent = {};\n\n function warnNoop(publicInstance, callerName) {\n {\n var _constructor = publicInstance.constructor;\n var componentName = _constructor && (_constructor.displayName || _constructor.name) || 'ReactClass';\n var warningKey = componentName + \".\" + callerName;\n\n if (didWarnStateUpdateForUnmountedComponent[warningKey]) {\n return;\n }\n\n warningWithoutStack$1(false, \"Can't call %s on a component that is not yet mounted. \" + 'This is a no-op, but it might indicate a bug in your application. ' + 'Instead, assign to `this.state` directly or define a `state = {};` ' + 'class property with the desired state in the %s component.', callerName, componentName);\n didWarnStateUpdateForUnmountedComponent[warningKey] = true;\n }\n }\n /**\n * This is the abstract API for an update queue.\n */\n\n\n var ReactNoopUpdateQueue = {\n /**\n * Checks whether or not this composite component is mounted.\n * @param {ReactClass} publicInstance The instance we want to test.\n * @return {boolean} True if mounted, false otherwise.\n * @protected\n * @final\n */\n isMounted: function isMounted(publicInstance) {\n return false;\n },\n\n /**\n * Forces an update. This should only be invoked when it is known with\n * certainty that we are **not** in a DOM transaction.\n *\n * You may want to call this when you know that some deeper aspect of the\n * component's state has changed but `setState` was not called.\n *\n * This will not invoke `shouldComponentUpdate`, but it will invoke\n * `componentWillUpdate` and `componentDidUpdate`.\n *\n * @param {ReactClass} publicInstance The instance that should rerender.\n * @param {?function} callback Called after component is updated.\n * @param {?string} callerName name of the calling function in the public API.\n * @internal\n */\n enqueueForceUpdate: function enqueueForceUpdate(publicInstance, callback, callerName) {\n warnNoop(publicInstance, 'forceUpdate');\n },\n\n /**\n * Replaces all of the state. Always use this or `setState` to mutate state.\n * You should treat `this.state` as immutable.\n *\n * There is no guarantee that `this.state` will be immediately updated, so\n * accessing `this.state` after calling this method may return the old value.\n *\n * @param {ReactClass} publicInstance The instance that should rerender.\n * @param {object} completeState Next state.\n * @param {?function} callback Called after component is updated.\n * @param {?string} callerName name of the calling function in the public API.\n * @internal\n */\n enqueueReplaceState: function enqueueReplaceState(publicInstance, completeState, callback, callerName) {\n warnNoop(publicInstance, 'replaceState');\n },\n\n /**\n * Sets a subset of the state. This only exists because _pendingState is\n * internal. This provides a merging strategy that is not available to deep\n * properties which is confusing. TODO: Expose pendingState or don't use it\n * during the merge.\n *\n * @param {ReactClass} publicInstance The instance that should rerender.\n * @param {object} partialState Next partial state to be merged with state.\n * @param {?function} callback Called after component is updated.\n * @param {?string} Name of the calling function in the public API.\n * @internal\n */\n enqueueSetState: function enqueueSetState(publicInstance, partialState, callback, callerName) {\n warnNoop(publicInstance, 'setState');\n }\n };\n var emptyObject = {};\n {\n Object.freeze(emptyObject);\n }\n /**\n * Base class helpers for the updating state of a component.\n */\n\n function Component(props, context, updater) {\n this.props = props;\n this.context = context; // If a component has string refs, we will assign a different object later.\n\n this.refs = emptyObject; // We initialize the default updater but the real one gets injected by the\n // renderer.\n\n this.updater = updater || ReactNoopUpdateQueue;\n }\n\n Component.prototype.isReactComponent = {};\n /**\n * Sets a subset of the state. Always use this to mutate\n * state. You should treat `this.state` as immutable.\n *\n * There is no guarantee that `this.state` will be immediately updated, so\n * accessing `this.state` after calling this method may return the old value.\n *\n * There is no guarantee that calls to `setState` will run synchronously,\n * as they may eventually be batched together. You can provide an optional\n * callback that will be executed when the call to setState is actually\n * completed.\n *\n * When a function is provided to setState, it will be called at some point in\n * the future (not synchronously). It will be called with the up to date\n * component arguments (state, props, context). These values can be different\n * from this.* because your function may be called after receiveProps but before\n * shouldComponentUpdate, and this new state, props, and context will not yet be\n * assigned to this.\n *\n * @param {object|function} partialState Next partial state or function to\n * produce next partial state to be merged with current state.\n * @param {?function} callback Called after state is updated.\n * @final\n * @protected\n */\n\n Component.prototype.setState = function (partialState, callback) {\n if (!(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null)) {\n {\n throw Error(\"setState(...): takes an object of state variables to update or a function which returns an object of state variables.\");\n }\n }\n\n this.updater.enqueueSetState(this, partialState, callback, 'setState');\n };\n /**\n * Forces an update. This should only be invoked when it is known with\n * certainty that we are **not** in a DOM transaction.\n *\n * You may want to call this when you know that some deeper aspect of the\n * component's state has changed but `setState` was not called.\n *\n * This will not invoke `shouldComponentUpdate`, but it will invoke\n * `componentWillUpdate` and `componentDidUpdate`.\n *\n * @param {?function} callback Called after update is complete.\n * @final\n * @protected\n */\n\n\n Component.prototype.forceUpdate = function (callback) {\n this.updater.enqueueForceUpdate(this, callback, 'forceUpdate');\n };\n /**\n * Deprecated APIs. These APIs used to exist on classic React classes but since\n * we would like to deprecate them, we're not going to move them over to this\n * modern base class. Instead, we define a getter that warns if it's accessed.\n */\n\n\n {\n var deprecatedAPIs = {\n isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'],\n replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).']\n };\n\n var defineDeprecationWarning = function defineDeprecationWarning(methodName, info) {\n Object.defineProperty(Component.prototype, methodName, {\n get: function get() {\n lowPriorityWarningWithoutStack$1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);\n return undefined;\n }\n });\n };\n\n for (var fnName in deprecatedAPIs) {\n if (deprecatedAPIs.hasOwnProperty(fnName)) {\n defineDeprecationWarning(fnName, deprecatedAPIs[fnName]);\n }\n }\n }\n\n function ComponentDummy() {}\n\n ComponentDummy.prototype = Component.prototype;\n /**\n * Convenience component with default shallow equality check for sCU.\n */\n\n function PureComponent(props, context, updater) {\n this.props = props;\n this.context = context; // If a component has string refs, we will assign a different object later.\n\n this.refs = emptyObject;\n this.updater = updater || ReactNoopUpdateQueue;\n }\n\n var pureComponentPrototype = PureComponent.prototype = new ComponentDummy();\n pureComponentPrototype.constructor = PureComponent; // Avoid an extra prototype jump for these methods.\n\n _assign(pureComponentPrototype, Component.prototype);\n\n pureComponentPrototype.isPureReactComponent = true; // an immutable object with a single mutable value\n\n function createRef() {\n var refObject = {\n current: null\n };\n {\n Object.seal(refObject);\n }\n return refObject;\n }\n /**\n * Keeps track of the current dispatcher.\n */\n\n\n var ReactCurrentDispatcher = {\n /**\n * @internal\n * @type {ReactComponent}\n */\n current: null\n };\n /**\n * Keeps track of the current batch's configuration such as how long an update\n * should suspend for if it needs to.\n */\n\n var ReactCurrentBatchConfig = {\n suspense: null\n };\n /**\n * Keeps track of the current owner.\n *\n * The current owner is the component who should own any components that are\n * currently being constructed.\n */\n\n var ReactCurrentOwner = {\n /**\n * @internal\n * @type {ReactComponent}\n */\n current: null\n };\n var BEFORE_SLASH_RE = /^(.*)[\\\\\\/]/;\n\n var describeComponentFrame = function describeComponentFrame(name, source, ownerName) {\n var sourceInfo = '';\n\n if (source) {\n var path = source.fileName;\n var fileName = path.replace(BEFORE_SLASH_RE, '');\n {\n // In DEV, include code for a common special case:\n // prefer \"folder/index.js\" instead of just \"index.js\".\n if (/^index\\./.test(fileName)) {\n var match = path.match(BEFORE_SLASH_RE);\n\n if (match) {\n var pathBeforeSlash = match[1];\n\n if (pathBeforeSlash) {\n var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');\n fileName = folderName + '/' + fileName;\n }\n }\n }\n }\n sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';\n } else if (ownerName) {\n sourceInfo = ' (created by ' + ownerName + ')';\n }\n\n return '\\n in ' + (name || 'Unknown') + sourceInfo;\n };\n\n var Resolved = 1;\n\n function refineResolvedLazyComponent(lazyComponent) {\n return lazyComponent._status === Resolved ? lazyComponent._result : null;\n }\n\n function getWrappedName(outerType, innerType, wrapperName) {\n var functionName = innerType.displayName || innerType.name || '';\n return outerType.displayName || (functionName !== '' ? wrapperName + \"(\" + functionName + \")\" : wrapperName);\n }\n\n function getComponentName(type) {\n if (type == null) {\n // Host root, text node or just invalid type.\n return null;\n }\n\n {\n if (typeof type.tag === 'number') {\n warningWithoutStack$1(false, 'Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');\n }\n }\n\n if (typeof type === 'function') {\n return type.displayName || type.name || null;\n }\n\n if (typeof type === 'string') {\n return type;\n }\n\n switch (type) {\n case REACT_FRAGMENT_TYPE:\n return 'Fragment';\n\n case REACT_PORTAL_TYPE:\n return 'Portal';\n\n case REACT_PROFILER_TYPE:\n return \"Profiler\";\n\n case REACT_STRICT_MODE_TYPE:\n return 'StrictMode';\n\n case REACT_SUSPENSE_TYPE:\n return 'Suspense';\n\n case REACT_SUSPENSE_LIST_TYPE:\n return 'SuspenseList';\n }\n\n if (typeof type === 'object') {\n switch (type.$$typeof) {\n case REACT_CONTEXT_TYPE:\n return 'Context.Consumer';\n\n case REACT_PROVIDER_TYPE:\n return 'Context.Provider';\n\n case REACT_FORWARD_REF_TYPE:\n return getWrappedName(type, type.render, 'ForwardRef');\n\n case REACT_MEMO_TYPE:\n return getComponentName(type.type);\n\n case REACT_LAZY_TYPE:\n {\n var thenable = type;\n var resolvedThenable = refineResolvedLazyComponent(thenable);\n\n if (resolvedThenable) {\n return getComponentName(resolvedThenable);\n }\n\n break;\n }\n }\n }\n\n return null;\n }\n\n var ReactDebugCurrentFrame = {};\n var currentlyValidatingElement = null;\n\n function setCurrentlyValidatingElement(element) {\n {\n currentlyValidatingElement = element;\n }\n }\n\n {\n // Stack implementation injected by the current renderer.\n ReactDebugCurrentFrame.getCurrentStack = null;\n\n ReactDebugCurrentFrame.getStackAddendum = function () {\n var stack = ''; // Add an extra top frame while an element is being validated\n\n if (currentlyValidatingElement) {\n var name = getComponentName(currentlyValidatingElement.type);\n var owner = currentlyValidatingElement._owner;\n stack += describeComponentFrame(name, currentlyValidatingElement._source, owner && getComponentName(owner.type));\n } // Delegate to the injected renderer-specific implementation\n\n\n var impl = ReactDebugCurrentFrame.getCurrentStack;\n\n if (impl) {\n stack += impl() || '';\n }\n\n return stack;\n };\n }\n /**\n * Used by act() to track whether you're inside an act() scope.\n */\n\n var IsSomeRendererActing = {\n current: false\n };\n var ReactSharedInternals = {\n ReactCurrentDispatcher: ReactCurrentDispatcher,\n ReactCurrentBatchConfig: ReactCurrentBatchConfig,\n ReactCurrentOwner: ReactCurrentOwner,\n IsSomeRendererActing: IsSomeRendererActing,\n // Used by renderers to avoid bundling object-assign twice in UMD bundles:\n assign: _assign\n };\n {\n _assign(ReactSharedInternals, {\n // These should not be included in production.\n ReactDebugCurrentFrame: ReactDebugCurrentFrame,\n // Shim for React DOM 16.0.0 which still destructured (but not used) this.\n // TODO: remove in React 17.0.\n ReactComponentTreeHook: {}\n });\n }\n /**\n * Similar to invariant but only logs a warning if the condition is not met.\n * This can be used to log issues in development environments in critical\n * paths. Removing the logging code for production environments will keep the\n * same logic and follow the same code paths.\n */\n\n var warning = warningWithoutStack$1;\n {\n warning = function warning(condition, format) {\n if (condition) {\n return;\n }\n\n var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;\n var stack = ReactDebugCurrentFrame.getStackAddendum(); // eslint-disable-next-line react-internal/warning-and-invariant-args\n\n for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {\n args[_key - 2] = arguments[_key];\n }\n\n warningWithoutStack$1.apply(void 0, [false, format + '%s'].concat(args, [stack]));\n };\n }\n var warning$1 = warning;\n var hasOwnProperty = Object.prototype.hasOwnProperty;\n var RESERVED_PROPS = {\n key: true,\n ref: true,\n __self: true,\n __source: true\n };\n var specialPropKeyWarningShown;\n var specialPropRefWarningShown;\n\n function hasValidRef(config) {\n {\n if (hasOwnProperty.call(config, 'ref')) {\n var getter = Object.getOwnPropertyDescriptor(config, 'ref').get;\n\n if (getter && getter.isReactWarning) {\n return false;\n }\n }\n }\n return config.ref !== undefined;\n }\n\n function hasValidKey(config) {\n {\n if (hasOwnProperty.call(config, 'key')) {\n var getter = Object.getOwnPropertyDescriptor(config, 'key').get;\n\n if (getter && getter.isReactWarning) {\n return false;\n }\n }\n }\n return config.key !== undefined;\n }\n\n function defineKeyPropWarningGetter(props, displayName) {\n var warnAboutAccessingKey = function warnAboutAccessingKey() {\n if (!specialPropKeyWarningShown) {\n specialPropKeyWarningShown = true;\n warningWithoutStack$1(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);\n }\n };\n\n warnAboutAccessingKey.isReactWarning = true;\n Object.defineProperty(props, 'key', {\n get: warnAboutAccessingKey,\n configurable: true\n });\n }\n\n function defineRefPropWarningGetter(props, displayName) {\n var warnAboutAccessingRef = function warnAboutAccessingRef() {\n if (!specialPropRefWarningShown) {\n specialPropRefWarningShown = true;\n warningWithoutStack$1(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);\n }\n };\n\n warnAboutAccessingRef.isReactWarning = true;\n Object.defineProperty(props, 'ref', {\n get: warnAboutAccessingRef,\n configurable: true\n });\n }\n /**\n * Factory method to create a new React element. This no longer adheres to\n * the class pattern, so do not use new to call it. Also, instanceof check\n * will not work. Instead test $$typeof field against Symbol.for('react.element') to check\n * if something is a React Element.\n *\n * @param {*} type\n * @param {*} props\n * @param {*} key\n * @param {string|object} ref\n * @param {*} owner\n * @param {*} self A *temporary* helper to detect places where `this` is\n * different from the `owner` when React.createElement is called, so that we\n * can warn. We want to get rid of owner and replace string `ref`s with arrow\n * functions, and as long as `this` and owner are the same, there will be no\n * change in behavior.\n * @param {*} source An annotation object (added by a transpiler or otherwise)\n * indicating filename, line number, and/or other information.\n * @internal\n */\n\n\n var ReactElement = function ReactElement(type, key, ref, self, source, owner, props) {\n var element = {\n // This tag allows us to uniquely identify this as a React Element\n $$typeof: REACT_ELEMENT_TYPE,\n // Built-in properties that belong on the element\n type: type,\n key: key,\n ref: ref,\n props: props,\n // Record the component responsible for creating this element.\n _owner: owner\n };\n {\n // The validation flag is currently mutative. We put it on\n // an external backing store so that we can freeze the whole object.\n // This can be replaced with a WeakMap once they are implemented in\n // commonly used development environments.\n element._store = {}; // To make comparing ReactElements easier for testing purposes, we make\n // the validation flag non-enumerable (where possible, which should\n // include every environment we run tests in), so the test framework\n // ignores it.\n\n Object.defineProperty(element._store, 'validated', {\n configurable: false,\n enumerable: false,\n writable: true,\n value: false\n }); // self and source are DEV only properties.\n\n Object.defineProperty(element, '_self', {\n configurable: false,\n enumerable: false,\n writable: false,\n value: self\n }); // Two elements created in two different places should be considered\n // equal for testing purposes and therefore we hide it from enumeration.\n\n Object.defineProperty(element, '_source', {\n configurable: false,\n enumerable: false,\n writable: false,\n value: source\n });\n\n if (Object.freeze) {\n Object.freeze(element.props);\n Object.freeze(element);\n }\n }\n return element;\n };\n /**\n * https://github.com/reactjs/rfcs/pull/107\n * @param {*} type\n * @param {object} props\n * @param {string} key\n */\n\n /**\n * https://github.com/reactjs/rfcs/pull/107\n * @param {*} type\n * @param {object} props\n * @param {string} key\n */\n\n\n function jsxDEV(type, config, maybeKey, source, self) {\n var propName; // Reserved names are extracted\n\n var props = {};\n var key = null;\n var ref = null; // Currently, key can be spread in as a prop. This causes a potential\n // issue if key is also explicitly declared (ie.
\n // or ). We want to deprecate key spread,\n // but as an intermediary step, we will use jsxDEV for everything except\n // , because we aren't currently able to tell if\n // key is explicitly declared to be undefined or not.\n\n if (maybeKey !== undefined) {\n key = '' + maybeKey;\n }\n\n if (hasValidKey(config)) {\n key = '' + config.key;\n }\n\n if (hasValidRef(config)) {\n ref = config.ref;\n } // Remaining properties are added to a new props object\n\n\n for (propName in config) {\n if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {\n props[propName] = config[propName];\n }\n } // Resolve default props\n\n\n if (type && type.defaultProps) {\n var defaultProps = type.defaultProps;\n\n for (propName in defaultProps) {\n if (props[propName] === undefined) {\n props[propName] = defaultProps[propName];\n }\n }\n }\n\n if (key || ref) {\n var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;\n\n if (key) {\n defineKeyPropWarningGetter(props, displayName);\n }\n\n if (ref) {\n defineRefPropWarningGetter(props, displayName);\n }\n }\n\n return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);\n }\n /**\n * Create and return a new ReactElement of the given type.\n * See https://reactjs.org/docs/react-api.html#createelement\n */\n\n\n function createElement(type, config, children) {\n var propName; // Reserved names are extracted\n\n var props = {};\n var key = null;\n var ref = null;\n var self = null;\n var source = null;\n\n if (config != null) {\n if (hasValidRef(config)) {\n ref = config.ref;\n }\n\n if (hasValidKey(config)) {\n key = '' + config.key;\n }\n\n self = config.__self === undefined ? null : config.__self;\n source = config.__source === undefined ? null : config.__source; // Remaining properties are added to a new props object\n\n for (propName in config) {\n if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {\n props[propName] = config[propName];\n }\n }\n } // Children can be more than one argument, and those are transferred onto\n // the newly allocated props object.\n\n\n var childrenLength = arguments.length - 2;\n\n if (childrenLength === 1) {\n props.children = children;\n } else if (childrenLength > 1) {\n var childArray = Array(childrenLength);\n\n for (var i = 0; i < childrenLength; i++) {\n childArray[i] = arguments[i + 2];\n }\n\n {\n if (Object.freeze) {\n Object.freeze(childArray);\n }\n }\n props.children = childArray;\n } // Resolve default props\n\n\n if (type && type.defaultProps) {\n var defaultProps = type.defaultProps;\n\n for (propName in defaultProps) {\n if (props[propName] === undefined) {\n props[propName] = defaultProps[propName];\n }\n }\n }\n\n {\n if (key || ref) {\n var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;\n\n if (key) {\n defineKeyPropWarningGetter(props, displayName);\n }\n\n if (ref) {\n defineRefPropWarningGetter(props, displayName);\n }\n }\n }\n return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);\n }\n /**\n * Return a function that produces ReactElements of a given type.\n * See https://reactjs.org/docs/react-api.html#createfactory\n */\n\n\n function cloneAndReplaceKey(oldElement, newKey) {\n var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);\n return newElement;\n }\n /**\n * Clone and return a new ReactElement using element as the starting point.\n * See https://reactjs.org/docs/react-api.html#cloneelement\n */\n\n\n function cloneElement(element, config, children) {\n if (!!(element === null || element === undefined)) {\n {\n throw Error(\"React.cloneElement(...): The argument must be a React element, but you passed \" + element + \".\");\n }\n }\n\n var propName; // Original props are copied\n\n var props = _assign({}, element.props); // Reserved names are extracted\n\n\n var key = element.key;\n var ref = element.ref; // Self is preserved since the owner is preserved.\n\n var self = element._self; // Source is preserved since cloneElement is unlikely to be targeted by a\n // transpiler, and the original source is probably a better indicator of the\n // true owner.\n\n var source = element._source; // Owner will be preserved, unless ref is overridden\n\n var owner = element._owner;\n\n if (config != null) {\n if (hasValidRef(config)) {\n // Silently steal the ref from the parent.\n ref = config.ref;\n owner = ReactCurrentOwner.current;\n }\n\n if (hasValidKey(config)) {\n key = '' + config.key;\n } // Remaining properties override existing props\n\n\n var defaultProps;\n\n if (element.type && element.type.defaultProps) {\n defaultProps = element.type.defaultProps;\n }\n\n for (propName in config) {\n if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {\n if (config[propName] === undefined && defaultProps !== undefined) {\n // Resolve default props\n props[propName] = defaultProps[propName];\n } else {\n props[propName] = config[propName];\n }\n }\n }\n } // Children can be more than one argument, and those are transferred onto\n // the newly allocated props object.\n\n\n var childrenLength = arguments.length - 2;\n\n if (childrenLength === 1) {\n props.children = children;\n } else if (childrenLength > 1) {\n var childArray = Array(childrenLength);\n\n for (var i = 0; i < childrenLength; i++) {\n childArray[i] = arguments[i + 2];\n }\n\n props.children = childArray;\n }\n\n return ReactElement(element.type, key, ref, self, source, owner, props);\n }\n /**\n * Verifies the object is a ReactElement.\n * See https://reactjs.org/docs/react-api.html#isvalidelement\n * @param {?object} object\n * @return {boolean} True if `object` is a ReactElement.\n * @final\n */\n\n\n function isValidElement(object) {\n return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;\n }\n\n var SEPARATOR = '.';\n var SUBSEPARATOR = ':';\n /**\n * Escape and wrap key so it is safe to use as a reactid\n *\n * @param {string} key to be escaped.\n * @return {string} the escaped key.\n */\n\n function escape(key) {\n var escapeRegex = /[=:]/g;\n var escaperLookup = {\n '=': '=0',\n ':': '=2'\n };\n var escapedString = ('' + key).replace(escapeRegex, function (match) {\n return escaperLookup[match];\n });\n return '$' + escapedString;\n }\n /**\n * TODO: Test that a single child and an array with one item have the same key\n * pattern.\n */\n\n\n var didWarnAboutMaps = false;\n var userProvidedKeyEscapeRegex = /\\/+/g;\n\n function escapeUserProvidedKey(text) {\n return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/');\n }\n\n var POOL_SIZE = 10;\n var traverseContextPool = [];\n\n function getPooledTraverseContext(mapResult, keyPrefix, mapFunction, mapContext) {\n if (traverseContextPool.length) {\n var traverseContext = traverseContextPool.pop();\n traverseContext.result = mapResult;\n traverseContext.keyPrefix = keyPrefix;\n traverseContext.func = mapFunction;\n traverseContext.context = mapContext;\n traverseContext.count = 0;\n return traverseContext;\n } else {\n return {\n result: mapResult,\n keyPrefix: keyPrefix,\n func: mapFunction,\n context: mapContext,\n count: 0\n };\n }\n }\n\n function releaseTraverseContext(traverseContext) {\n traverseContext.result = null;\n traverseContext.keyPrefix = null;\n traverseContext.func = null;\n traverseContext.context = null;\n traverseContext.count = 0;\n\n if (traverseContextPool.length < POOL_SIZE) {\n traverseContextPool.push(traverseContext);\n }\n }\n /**\n * @param {?*} children Children tree container.\n * @param {!string} nameSoFar Name of the key path so far.\n * @param {!function} callback Callback to invoke with each child found.\n * @param {?*} traverseContext Used to pass information throughout the traversal\n * process.\n * @return {!number} The number of children in this subtree.\n */\n\n\n function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext) {\n var type = typeof children;\n\n if (type === 'undefined' || type === 'boolean') {\n // All of the above are perceived as null.\n children = null;\n }\n\n var invokeCallback = false;\n\n if (children === null) {\n invokeCallback = true;\n } else {\n switch (type) {\n case 'string':\n case 'number':\n invokeCallback = true;\n break;\n\n case 'object':\n switch (children.$$typeof) {\n case REACT_ELEMENT_TYPE:\n case REACT_PORTAL_TYPE:\n invokeCallback = true;\n }\n\n }\n }\n\n if (invokeCallback) {\n callback(traverseContext, children, // If it's the only child, treat the name as if it was wrapped in an array\n // so that it's consistent if the number of children grows.\n nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar);\n return 1;\n }\n\n var child;\n var nextName;\n var subtreeCount = 0; // Count of children found in the current subtree.\n\n var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;\n\n if (Array.isArray(children)) {\n for (var i = 0; i < children.length; i++) {\n child = children[i];\n nextName = nextNamePrefix + getComponentKey(child, i);\n subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);\n }\n } else {\n var iteratorFn = getIteratorFn(children);\n\n if (typeof iteratorFn === 'function') {\n {\n // Warn about using Maps as children\n if (iteratorFn === children.entries) {\n !didWarnAboutMaps ? warning$1(false, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.') : void 0;\n didWarnAboutMaps = true;\n }\n }\n var iterator = iteratorFn.call(children);\n var step;\n var ii = 0;\n\n while (!(step = iterator.next()).done) {\n child = step.value;\n nextName = nextNamePrefix + getComponentKey(child, ii++);\n subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);\n }\n } else if (type === 'object') {\n var addendum = '';\n {\n addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + ReactDebugCurrentFrame.getStackAddendum();\n }\n var childrenString = '' + children;\n {\n {\n throw Error(\"Objects are not valid as a React child (found: \" + (childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString) + \").\" + addendum);\n }\n }\n }\n }\n\n return subtreeCount;\n }\n /**\n * Traverses children that are typically specified as `props.children`, but\n * might also be specified through attributes:\n *\n * - `traverseAllChildren(this.props.children, ...)`\n * - `traverseAllChildren(this.props.leftPanelChildren, ...)`\n *\n * The `traverseContext` is an optional argument that is passed through the\n * entire traversal. It can be used to store accumulations or anything else that\n * the callback might find relevant.\n *\n * @param {?*} children Children tree object.\n * @param {!function} callback To invoke upon traversing each child.\n * @param {?*} traverseContext Context for traversal.\n * @return {!number} The number of children in this subtree.\n */\n\n\n function traverseAllChildren(children, callback, traverseContext) {\n if (children == null) {\n return 0;\n }\n\n return traverseAllChildrenImpl(children, '', callback, traverseContext);\n }\n /**\n * Generate a key string that identifies a component within a set.\n *\n * @param {*} component A component that could contain a manual key.\n * @param {number} index Index that is used if a manual key is not provided.\n * @return {string}\n */\n\n\n function getComponentKey(component, index) {\n // Do some typechecking here since we call this blindly. We want to ensure\n // that we don't block potential future ES APIs.\n if (typeof component === 'object' && component !== null && component.key != null) {\n // Explicit key\n return escape(component.key);\n } // Implicit key determined by the index in the set\n\n\n return index.toString(36);\n }\n\n function forEachSingleChild(bookKeeping, child, name) {\n var func = bookKeeping.func,\n context = bookKeeping.context;\n func.call(context, child, bookKeeping.count++);\n }\n /**\n * Iterates through children that are typically specified as `props.children`.\n *\n * See https://reactjs.org/docs/react-api.html#reactchildrenforeach\n *\n * The provided forEachFunc(child, index) will be called for each\n * leaf child.\n *\n * @param {?*} children Children tree container.\n * @param {function(*, int)} forEachFunc\n * @param {*} forEachContext Context for forEachContext.\n */\n\n\n function forEachChildren(children, forEachFunc, forEachContext) {\n if (children == null) {\n return children;\n }\n\n var traverseContext = getPooledTraverseContext(null, null, forEachFunc, forEachContext);\n traverseAllChildren(children, forEachSingleChild, traverseContext);\n releaseTraverseContext(traverseContext);\n }\n\n function mapSingleChildIntoContext(bookKeeping, child, childKey) {\n var result = bookKeeping.result,\n keyPrefix = bookKeeping.keyPrefix,\n func = bookKeeping.func,\n context = bookKeeping.context;\n var mappedChild = func.call(context, child, bookKeeping.count++);\n\n if (Array.isArray(mappedChild)) {\n mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, function (c) {\n return c;\n });\n } else if (mappedChild != null) {\n if (isValidElement(mappedChild)) {\n mappedChild = cloneAndReplaceKey(mappedChild, // Keep both the (mapped) and old keys if they differ, just as\n // traverseAllChildren used to do for objects as children\n keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey);\n }\n\n result.push(mappedChild);\n }\n }\n\n function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {\n var escapedPrefix = '';\n\n if (prefix != null) {\n escapedPrefix = escapeUserProvidedKey(prefix) + '/';\n }\n\n var traverseContext = getPooledTraverseContext(array, escapedPrefix, func, context);\n traverseAllChildren(children, mapSingleChildIntoContext, traverseContext);\n releaseTraverseContext(traverseContext);\n }\n /**\n * Maps children that are typically specified as `props.children`.\n *\n * See https://reactjs.org/docs/react-api.html#reactchildrenmap\n *\n * The provided mapFunction(child, key, index) will be called for each\n * leaf child.\n *\n * @param {?*} children Children tree container.\n * @param {function(*, int)} func The map function.\n * @param {*} context Context for mapFunction.\n * @return {object} Object containing the ordered map of results.\n */\n\n\n function mapChildren(children, func, context) {\n if (children == null) {\n return children;\n }\n\n var result = [];\n mapIntoWithKeyPrefixInternal(children, result, null, func, context);\n return result;\n }\n /**\n * Count the number of children that are typically specified as\n * `props.children`.\n *\n * See https://reactjs.org/docs/react-api.html#reactchildrencount\n *\n * @param {?*} children Children tree container.\n * @return {number} The number of children.\n */\n\n\n function countChildren(children) {\n return traverseAllChildren(children, function () {\n return null;\n }, null);\n }\n /**\n * Flatten a children object (typically specified as `props.children`) and\n * return an array with appropriately re-keyed children.\n *\n * See https://reactjs.org/docs/react-api.html#reactchildrentoarray\n */\n\n\n function toArray(children) {\n var result = [];\n mapIntoWithKeyPrefixInternal(children, result, null, function (child) {\n return child;\n });\n return result;\n }\n /**\n * Returns the first child in a collection of children and verifies that there\n * is only one child in the collection.\n *\n * See https://reactjs.org/docs/react-api.html#reactchildrenonly\n *\n * The current implementation of this function assumes that a single child gets\n * passed without a wrapper, but the purpose of this helper function is to\n * abstract away the particular structure of children.\n *\n * @param {?object} children Child collection structure.\n * @return {ReactElement} The first and only `ReactElement` contained in the\n * structure.\n */\n\n\n function onlyChild(children) {\n if (!isValidElement(children)) {\n {\n throw Error(\"React.Children.only expected to receive a single React element child.\");\n }\n }\n\n return children;\n }\n\n function createContext(defaultValue, calculateChangedBits) {\n if (calculateChangedBits === undefined) {\n calculateChangedBits = null;\n } else {\n {\n !(calculateChangedBits === null || typeof calculateChangedBits === 'function') ? warningWithoutStack$1(false, 'createContext: Expected the optional second argument to be a ' + 'function. Instead received: %s', calculateChangedBits) : void 0;\n }\n }\n\n var context = {\n $$typeof: REACT_CONTEXT_TYPE,\n _calculateChangedBits: calculateChangedBits,\n // As a workaround to support multiple concurrent renderers, we categorize\n // some renderers as primary and others as secondary. We only expect\n // there to be two concurrent renderers at most: React Native (primary) and\n // Fabric (secondary); React DOM (primary) and React ART (secondary).\n // Secondary renderers store their context values on separate fields.\n _currentValue: defaultValue,\n _currentValue2: defaultValue,\n // Used to track how many concurrent renderers this context currently\n // supports within in a single renderer. Such as parallel server rendering.\n _threadCount: 0,\n // These are circular\n Provider: null,\n Consumer: null\n };\n context.Provider = {\n $$typeof: REACT_PROVIDER_TYPE,\n _context: context\n };\n var hasWarnedAboutUsingNestedContextConsumers = false;\n var hasWarnedAboutUsingConsumerProvider = false;\n {\n // A separate object, but proxies back to the original context object for\n // backwards compatibility. It has a different $$typeof, so we can properly\n // warn for the incorrect usage of Context as a Consumer.\n var Consumer = {\n $$typeof: REACT_CONTEXT_TYPE,\n _context: context,\n _calculateChangedBits: context._calculateChangedBits\n }; // $FlowFixMe: Flow complains about not setting a value, which is intentional here\n\n Object.defineProperties(Consumer, {\n Provider: {\n get: function get() {\n if (!hasWarnedAboutUsingConsumerProvider) {\n hasWarnedAboutUsingConsumerProvider = true;\n warning$1(false, 'Rendering