GT2/GT2-Android/node_modules/react/cjs/react.development.js

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/** @license React v16.2.0
* react.development.js
*
* 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.
*/
'use strict';
if (process.env.NODE_ENV !== "production") {
(function() {
'use strict';
var _assign = require('object-assign');
var emptyObject = require('fbjs/lib/emptyObject');
var invariant = require('fbjs/lib/invariant');
var warning = require('fbjs/lib/warning');
var emptyFunction = require('fbjs/lib/emptyFunction');
var checkPropTypes = require('prop-types/checkPropTypes');
// TODO: this is special because it gets imported during build.
var ReactVersion = '16.2.0';
// 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;
}
/**
* WARNING: DO NOT manually require this module.
* This is a replacement for `invariant(...)` used by the error code system
* and will _only_ be required by the corresponding babel pass.
* It always throws.
*/
/**
* Forked from fbjs/warning:
* https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
*
* Only change is we use console.warn instead of console.error,
* and do nothing when 'console' is not supported.
* This really simplifies the code.
* ---
* Similar to invariant but only logs a warning if the condition is not met.
* This can be used to log issues in development environments in critical
* paths. Removing the logging code for production environments will keep the
* same logic and follow the same code paths.
*/
var lowPriorityWarning = function () {};
{
var printWarning = function (format) {
for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
var argIndex = 0;
var message = 'Warning: ' + format.replace(/%s/g, function () {
return args[argIndex++];
});
if (typeof console !== 'undefined') {
console.warn(message);
}
try {
// --- Welcome to debugging React ---
// This error was thrown as a convenience so that you can use this stack
// to find the callsite that caused this warning to fire.
throw new Error(message);
} catch (x) {}
};
lowPriorityWarning = function (condition, format) {
if (format === undefined) {
throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');
}
if (!condition) {
for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
args[_key2 - 2] = arguments[_key2];
}
printWarning.apply(undefined, [format].concat(args));
}
};
}
var lowPriorityWarning$1 = lowPriorityWarning;
var didWarnStateUpdateForUnmountedComponent = {};
function warnNoop(publicInstance, callerName) {
{
var constructor = publicInstance.constructor;
var componentName = constructor && (constructor.displayName || constructor.name) || 'ReactClass';
var warningKey = componentName + '.' + callerName;
if (didWarnStateUpdateForUnmountedComponent[warningKey]) {
return;
}
warning(false, '%s(...): Can only update a mounted or mounting component. ' + 'This usually means you called %s() on an unmounted component. ' + 'This is a no-op.\n\nPlease check the code for the %s component.', callerName, callerName, componentName);
didWarnStateUpdateForUnmountedComponent[warningKey] = true;
}
}
/**
* This is the abstract API for an update queue.
*/
var ReactNoopUpdateQueue = {
/**
* Checks whether or not this composite component is mounted.
* @param {ReactClass} publicInstance The instance we want to test.
* @return {boolean} True if mounted, false otherwise.
* @protected
* @final
*/
isMounted: function (publicInstance) {
return false;
},
/**
* Forces an update. This should only be invoked when it is known with
* certainty that we are **not** in a DOM transaction.
*
* You may want to call this when you know that some deeper aspect of the
* component's state has changed but `setState` was not called.
*
* This will not invoke `shouldComponentUpdate`, but it will invoke
* `componentWillUpdate` and `componentDidUpdate`.
*
* @param {ReactClass} publicInstance The instance that should rerender.
* @param {?function} callback Called after component is updated.
* @param {?string} callerName name of the calling function in the public API.
* @internal
*/
enqueueForceUpdate: function (publicInstance, callback, callerName) {
warnNoop(publicInstance, 'forceUpdate');
},
/**
* Replaces all of the state. Always use this or `setState` to mutate state.
* You should treat `this.state` as immutable.
*
* There is no guarantee that `this.state` will be immediately updated, so
* accessing `this.state` after calling this method may return the old value.
*
* @param {ReactClass} publicInstance The instance that should rerender.
* @param {object} completeState Next state.
* @param {?function} callback Called after component is updated.
* @param {?string} callerName name of the calling function in the public API.
* @internal
*/
enqueueReplaceState: function (publicInstance, completeState, callback, callerName) {
warnNoop(publicInstance, 'replaceState');
},
/**
* Sets a subset of the state. This only exists because _pendingState is
* internal. This provides a merging strategy that is not available to deep
* properties which is confusing. TODO: Expose pendingState or don't use it
* during the merge.
*
* @param {ReactClass} publicInstance The instance that should rerender.
* @param {object} partialState Next partial state to be merged with state.
* @param {?function} callback Called after component is updated.
* @param {?string} Name of the calling function in the public API.
* @internal
*/
enqueueSetState: function (publicInstance, partialState, callback, callerName) {
warnNoop(publicInstance, 'setState');
}
};
/**
* Base class helpers for the updating state of a component.
*/
function Component(props, context, updater) {
this.props = props;
this.context = context;
this.refs = emptyObject;
// We initialize the default updater but the real one gets injected by the
// renderer.
this.updater = updater || ReactNoopUpdateQueue;
}
Component.prototype.isReactComponent = {};
/**
* Sets a subset of the state. Always use this to mutate
* state. You should treat `this.state` as immutable.
*
* There is no guarantee that `this.state` will be immediately updated, so
* accessing `this.state` after calling this method may return the old value.
*
* There is no guarantee that calls to `setState` will run synchronously,
* as they may eventually be batched together. You can provide an optional
* callback that will be executed when the call to setState is actually
* completed.
*
* When a function is provided to setState, it will be called at some point in
* the future (not synchronously). It will be called with the up to date
* component arguments (state, props, context). These values can be different
* from this.* because your function may be called after receiveProps but before
* shouldComponentUpdate, and this new state, props, and context will not yet be
* assigned to this.
*
* @param {object|function} partialState Next partial state or function to
* produce next partial state to be merged with current state.
* @param {?function} callback Called after state is updated.
* @final
* @protected
*/
Component.prototype.setState = function (partialState, callback) {
!(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null) ? invariant(false, 'setState(...): takes an object of state variables to update or a function which returns an object of state variables.') : void 0;
this.updater.enqueueSetState(this, partialState, callback, 'setState');
};
/**
* Forces an update. This should only be invoked when it is known with
* certainty that we are **not** in a DOM transaction.
*
* You may want to call this when you know that some deeper aspect of the
* component's state has changed but `setState` was not called.
*
* This will not invoke `shouldComponentUpdate`, but it will invoke
* `componentWillUpdate` and `componentDidUpdate`.
*
* @param {?function} callback Called after update is complete.
* @final
* @protected
*/
Component.prototype.forceUpdate = function (callback) {
this.updater.enqueueForceUpdate(this, callback, 'forceUpdate');
};
/**
* Deprecated APIs. These APIs used to exist on classic React classes but since
* we would like to deprecate them, we're not going to move them over to this
* modern base class. Instead, we define a getter that warns if it's accessed.
*/
{
var deprecatedAPIs = {
isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'],
replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).']
};
var defineDeprecationWarning = function (methodName, info) {
Object.defineProperty(Component.prototype, methodName, {
get: function () {
lowPriorityWarning$1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);
return undefined;
}
});
};
for (var fnName in deprecatedAPIs) {
if (deprecatedAPIs.hasOwnProperty(fnName)) {
defineDeprecationWarning(fnName, deprecatedAPIs[fnName]);
}
}
}
/**
* Base class helpers for the updating state of a component.
*/
function PureComponent(props, context, updater) {
// Duplicated from Component.
this.props = props;
this.context = context;
this.refs = emptyObject;
// We initialize the default updater but the real one gets injected by the
// renderer.
this.updater = updater || ReactNoopUpdateQueue;
}
function ComponentDummy() {}
ComponentDummy.prototype = Component.prototype;
var pureComponentPrototype = PureComponent.prototype = new ComponentDummy();
pureComponentPrototype.constructor = PureComponent;
// Avoid an extra prototype jump for these methods.
_assign(pureComponentPrototype, Component.prototype);
pureComponentPrototype.isPureReactComponent = true;
function AsyncComponent(props, context, updater) {
// Duplicated from Component.
this.props = props;
this.context = context;
this.refs = emptyObject;
// We initialize the default updater but the real one gets injected by the
// renderer.
this.updater = updater || ReactNoopUpdateQueue;
}
var asyncComponentPrototype = AsyncComponent.prototype = new ComponentDummy();
asyncComponentPrototype.constructor = AsyncComponent;
// Avoid an extra prototype jump for these methods.
_assign(asyncComponentPrototype, Component.prototype);
asyncComponentPrototype.unstable_isAsyncReactComponent = true;
asyncComponentPrototype.render = function () {
return this.props.children;
};
/**
* Keeps track of the current owner.
*
* The current owner is the component who should own any components that are
* currently being constructed.
*/
var ReactCurrentOwner = {
/**
* @internal
* @type {ReactComponent}
*/
current: null
};
var hasOwnProperty = Object.prototype.hasOwnProperty;
var RESERVED_PROPS = {
key: true,
ref: true,
__self: true,
__source: true
};
var specialPropKeyWarningShown;
var specialPropRefWarningShown;
function hasValidRef(config) {
{
if (hasOwnProperty.call(config, 'ref')) {
var getter = Object.getOwnPropertyDescriptor(config, 'ref').get;
if (getter && getter.isReactWarning) {
return false;
}
}
}
return config.ref !== undefined;
}
function hasValidKey(config) {
{
if (hasOwnProperty.call(config, 'key')) {
var getter = Object.getOwnPropertyDescriptor(config, 'key').get;
if (getter && getter.isReactWarning) {
return false;
}
}
}
return config.key !== undefined;
}
function defineKeyPropWarningGetter(props, displayName) {
var warnAboutAccessingKey = function () {
if (!specialPropKeyWarningShown) {
specialPropKeyWarningShown = true;
warning(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);
}
};
warnAboutAccessingKey.isReactWarning = true;
Object.defineProperty(props, 'key', {
get: warnAboutAccessingKey,
configurable: true
});
}
function defineRefPropWarningGetter(props, displayName) {
var warnAboutAccessingRef = function () {
if (!specialPropRefWarningShown) {
specialPropRefWarningShown = true;
warning(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);
}
};
warnAboutAccessingRef.isReactWarning = true;
Object.defineProperty(props, 'ref', {
get: warnAboutAccessingRef,
configurable: true
});
}
/**
* Factory method to create a new React element. This no longer adheres to
* the class pattern, so do not use new to call it. Also, no instanceof check
* will work. Instead test $$typeof field against Symbol.for('react.element') to check
* if something is a React Element.
*
* @param {*} type
* @param {*} key
* @param {string|object} ref
* @param {*} self A *temporary* helper to detect places where `this` is
* different from the `owner` when React.createElement is called, so that we
* can warn. We want to get rid of owner and replace string `ref`s with arrow
* functions, and as long as `this` and owner are the same, there will be no
* change in behavior.
* @param {*} source An annotation object (added by a transpiler or otherwise)
* indicating filename, line number, and/or other information.
* @param {*} owner
* @param {*} props
* @internal
*/
var ReactElement = function (type, key, ref, self, source, owner, props) {
var element = {
// This tag allow us to uniquely identify this as a React Element
$$typeof: REACT_ELEMENT_TYPE,
// Built-in properties that belong on the element
type: type,
key: key,
ref: ref,
props: props,
// Record the component responsible for creating this element.
_owner: owner
};
{
// The validation flag is currently mutative. We put it on
// an external backing store so that we can freeze the whole object.
// This can be replaced with a WeakMap once they are implemented in
// commonly used development environments.
element._store = {};
// To make comparing ReactElements easier for testing purposes, we make
// the validation flag non-enumerable (where possible, which should
// include every environment we run tests in), so the test framework
// ignores it.
Object.defineProperty(element._store, 'validated', {
configurable: false,
enumerable: false,
writable: true,
value: false
});
// self and source are DEV only properties.
Object.defineProperty(element, '_self', {
configurable: false,
enumerable: false,
writable: false,
value: self
});
// Two elements created in two different places should be considered
// equal for testing purposes and therefore we hide it from enumeration.
Object.defineProperty(element, '_source', {
configurable: false,
enumerable: false,
writable: false,
value: source
});
if (Object.freeze) {
Object.freeze(element.props);
Object.freeze(element);
}
}
return element;
};
/**
* Create and return a new ReactElement of the given type.
* See https://reactjs.org/docs/react-api.html#createelement
*/
function createElement(type, config, children) {
var propName;
// Reserved names are extracted
var props = {};
var key = null;
var ref = null;
var self = null;
var source = null;
if (config != null) {
if (hasValidRef(config)) {
ref = config.ref;
}
if (hasValidKey(config)) {
key = '' + config.key;
}
self = config.__self === undefined ? null : config.__self;
source = config.__source === undefined ? null : config.__source;
// Remaining properties are added to a new props object
for (propName in config) {
if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
props[propName] = config[propName];
}
}
}
// Children can be more than one argument, and those are transferred onto
// the newly allocated props object.
var childrenLength = arguments.length - 2;
if (childrenLength === 1) {
props.children = children;
} else if (childrenLength > 1) {
var childArray = Array(childrenLength);
for (var i = 0; i < childrenLength; i++) {
childArray[i] = arguments[i + 2];
}
{
if (Object.freeze) {
Object.freeze(childArray);
}
}
props.children = childArray;
}
// Resolve default props
if (type && type.defaultProps) {
var defaultProps = type.defaultProps;
for (propName in defaultProps) {
if (props[propName] === undefined) {
props[propName] = defaultProps[propName];
}
}
}
{
if (key || ref) {
if (typeof props.$$typeof === 'undefined' || props.$$typeof !== REACT_ELEMENT_TYPE) {
var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
if (key) {
defineKeyPropWarningGetter(props, displayName);
}
if (ref) {
defineRefPropWarningGetter(props, displayName);
}
}
}
}
return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
}
/**
* Return a function that produces ReactElements of a given type.
* See https://reactjs.org/docs/react-api.html#createfactory
*/
function cloneAndReplaceKey(oldElement, newKey) {
var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);
return newElement;
}
/**
* Clone and return a new ReactElement using element as the starting point.
* See https://reactjs.org/docs/react-api.html#cloneelement
*/
function cloneElement(element, config, children) {
var propName;
// Original props are copied
var props = _assign({}, element.props);
// Reserved names are extracted
var key = element.key;
var ref = element.ref;
// Self is preserved since the owner is preserved.
var self = element._self;
// Source is preserved since cloneElement is unlikely to be targeted by a
// transpiler, and the original source is probably a better indicator of the
// true owner.
var source = element._source;
// Owner will be preserved, unless ref is overridden
var owner = element._owner;
if (config != null) {
if (hasValidRef(config)) {
// Silently steal the ref from the parent.
ref = config.ref;
owner = ReactCurrentOwner.current;
}
if (hasValidKey(config)) {
key = '' + config.key;
}
// Remaining properties override existing props
var defaultProps;
if (element.type && element.type.defaultProps) {
defaultProps = element.type.defaultProps;
}
for (propName in config) {
if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
if (config[propName] === undefined && defaultProps !== undefined) {
// Resolve default props
props[propName] = defaultProps[propName];
} else {
props[propName] = config[propName];
}
}
}
}
// Children can be more than one argument, and those are transferred onto
// the newly allocated props object.
var childrenLength = arguments.length - 2;
if (childrenLength === 1) {
props.children = children;
} else if (childrenLength > 1) {
var childArray = Array(childrenLength);
for (var i = 0; i < childrenLength; i++) {
childArray[i] = arguments[i + 2];
}
props.children = childArray;
}
return ReactElement(element.type, key, ref, self, source, owner, props);
}
/**
* Verifies the object is a ReactElement.
* See https://reactjs.org/docs/react-api.html#isvalidelement
* @param {?object} object
* @return {boolean} True if `object` is a valid component.
* @final
*/
function isValidElement(object) {
return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
}
var ReactDebugCurrentFrame = {};
{
// Component that is being worked on
ReactDebugCurrentFrame.getCurrentStack = null;
ReactDebugCurrentFrame.getStackAddendum = function () {
var impl = ReactDebugCurrentFrame.getCurrentStack;
if (impl) {
return impl();
}
return null;
};
}
var SEPARATOR = '.';
var SUBSEPARATOR = ':';
/**
* Escape and wrap key so it is safe to use as a reactid
*
* @param {string} key to be escaped.
* @return {string} the escaped key.
*/
function escape(key) {
var escapeRegex = /[=:]/g;
var escaperLookup = {
'=': '=0',
':': '=2'
};
var escapedString = ('' + key).replace(escapeRegex, function (match) {
return escaperLookup[match];
});
return '$' + escapedString;
}
/**
* TODO: Test that a single child and an array with one item have the same key
* pattern.
*/
var didWarnAboutMaps = false;
var userProvidedKeyEscapeRegex = /\/+/g;
function escapeUserProvidedKey(text) {
return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/');
}
var POOL_SIZE = 10;
var traverseContextPool = [];
function getPooledTraverseContext(mapResult, keyPrefix, mapFunction, mapContext) {
if (traverseContextPool.length) {
var traverseContext = traverseContextPool.pop();
traverseContext.result = mapResult;
traverseContext.keyPrefix = keyPrefix;
traverseContext.func = mapFunction;
traverseContext.context = mapContext;
traverseContext.count = 0;
return traverseContext;
} else {
return {
result: mapResult,
keyPrefix: keyPrefix,
func: mapFunction,
context: mapContext,
count: 0
};
}
}
function releaseTraverseContext(traverseContext) {
traverseContext.result = null;
traverseContext.keyPrefix = null;
traverseContext.func = null;
traverseContext.context = null;
traverseContext.count = 0;
if (traverseContextPool.length < POOL_SIZE) {
traverseContextPool.push(traverseContext);
}
}
/**
* @param {?*} children Children tree container.
* @param {!string} nameSoFar Name of the key path so far.
* @param {!function} callback Callback to invoke with each child found.
* @param {?*} traverseContext Used to pass information throughout the traversal
* process.
* @return {!number} The number of children in this subtree.
*/
function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext) {
var type = typeof children;
if (type === 'undefined' || type === 'boolean') {
// All of the above are perceived as null.
children = null;
}
var invokeCallback = false;
if (children === null) {
invokeCallback = true;
} else {
switch (type) {
case 'string':
case 'number':
invokeCallback = true;
break;
case 'object':
switch (children.$$typeof) {
case REACT_ELEMENT_TYPE:
case REACT_CALL_TYPE:
case REACT_RETURN_TYPE:
case REACT_PORTAL_TYPE:
invokeCallback = true;
}
}
}
if (invokeCallback) {
callback(traverseContext, children,
// If it's the only child, treat the name as if it was wrapped in an array
// so that it's consistent if the number of children grows.
nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar);
return 1;
}
var child;
var nextName;
var subtreeCount = 0; // Count of children found in the current subtree.
var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;
if (Array.isArray(children)) {
for (var i = 0; i < children.length; i++) {
child = children[i];
nextName = nextNamePrefix + getComponentKey(child, i);
subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
}
} else {
var iteratorFn = getIteratorFn(children);
if (typeof iteratorFn === 'function') {
{
// Warn about using Maps as children
if (iteratorFn === children.entries) {
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', ReactDebugCurrentFrame.getStackAddendum());
didWarnAboutMaps = true;
}
}
var iterator = iteratorFn.call(children);
var step;
var ii = 0;
while (!(step = iterator.next()).done) {
child = step.value;
nextName = nextNamePrefix + getComponentKey(child, ii++);
subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
}
} else if (type === 'object') {
var addendum = '';
{
addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + ReactDebugCurrentFrame.getStackAddendum();
}
var childrenString = '' + children;
invariant(false, 'Objects are not valid as a React child (found: %s).%s', childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString, addendum);
}
}
return subtreeCount;
}
/**
* Traverses children that are typically specified as `props.children`, but
* might also be specified through attributes:
*
* - `traverseAllChildren(this.props.children, ...)`
* - `traverseAllChildren(this.props.leftPanelChildren, ...)`
*
* The `traverseContext` is an optional argument that is passed through the
* entire traversal. It can be used to store accumulations or anything else that
* the callback might find relevant.
*
* @param {?*} children Children tree object.
* @param {!function} callback To invoke upon traversing each child.
* @param {?*} traverseContext Context for traversal.
* @return {!number} The number of children in this subtree.
*/
function traverseAllChildren(children, callback, traverseContext) {
if (children == null) {
return 0;
}
return traverseAllChildrenImpl(children, '', callback, traverseContext);
}
/**
* Generate a key string that identifies a component within a set.
*
* @param {*} component A component that could contain a manual key.
* @param {number} index Index that is used if a manual key is not provided.
* @return {string}
*/
function getComponentKey(component, index) {
// Do some typechecking here since we call this blindly. We want to ensure
// that we don't block potential future ES APIs.
if (typeof component === 'object' && component !== null && component.key != null) {
// Explicit key
return escape(component.key);
}
// Implicit key determined by the index in the set
return index.toString(36);
}
function forEachSingleChild(bookKeeping, child, name) {
var func = bookKeeping.func,
context = bookKeeping.context;
func.call(context, child, bookKeeping.count++);
}
/**
* Iterates through children that are typically specified as `props.children`.
*
* See https://reactjs.org/docs/react-api.html#react.children.foreach
*
* The provided forEachFunc(child, index) will be called for each
* leaf child.
*
* @param {?*} children Children tree container.
* @param {function(*, int)} forEachFunc
* @param {*} forEachContext Context for forEachContext.
*/
function forEachChildren(children, forEachFunc, forEachContext) {
if (children == null) {
return children;
}
var traverseContext = getPooledTraverseContext(null, null, forEachFunc, forEachContext);
traverseAllChildren(children, forEachSingleChild, traverseContext);
releaseTraverseContext(traverseContext);
}
function mapSingleChildIntoContext(bookKeeping, child, childKey) {
var result = bookKeeping.result,
keyPrefix = bookKeeping.keyPrefix,
func = bookKeeping.func,
context = bookKeeping.context;
var mappedChild = func.call(context, child, bookKeeping.count++);
if (Array.isArray(mappedChild)) {
mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, emptyFunction.thatReturnsArgument);
} else if (mappedChild != null) {
if (isValidElement(mappedChild)) {
mappedChild = cloneAndReplaceKey(mappedChild,
// Keep both the (mapped) and old keys if they differ, just as
// traverseAllChildren used to do for objects as children
keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey);
}
result.push(mappedChild);
}
}
function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {
var escapedPrefix = '';
if (prefix != null) {
escapedPrefix = escapeUserProvidedKey(prefix) + '/';
}
var traverseContext = getPooledTraverseContext(array, escapedPrefix, func, context);
traverseAllChildren(children, mapSingleChildIntoContext, traverseContext);
releaseTraverseContext(traverseContext);
}
/**
* Maps children that are typically specified as `props.children`.
*
* See https://reactjs.org/docs/react-api.html#react.children.map
*
* The provided mapFunction(child, key, index) will be called for each
* leaf child.
*
* @param {?*} children Children tree container.
* @param {function(*, int)} func The map function.
* @param {*} context Context for mapFunction.
* @return {object} Object containing the ordered map of results.
*/
function mapChildren(children, func, context) {
if (children == null) {
return children;
}
var result = [];
mapIntoWithKeyPrefixInternal(children, result, null, func, context);
return result;
}
/**
* Count the number of children that are typically specified as
* `props.children`.
*
* See https://reactjs.org/docs/react-api.html#react.children.count
*
* @param {?*} children Children tree container.
* @return {number} The number of children.
*/
function countChildren(children, context) {
return traverseAllChildren(children, emptyFunction.thatReturnsNull, null);
}
/**
* Flatten a children object (typically specified as `props.children`) and
* return an array with appropriately re-keyed children.
*
* See https://reactjs.org/docs/react-api.html#react.children.toarray
*/
function toArray(children) {
var result = [];
mapIntoWithKeyPrefixInternal(children, result, null, emptyFunction.thatReturnsArgument);
return result;
}
/**
* Returns the first child in a collection of children and verifies that there
* is only one child in the collection.
*
* See https://reactjs.org/docs/react-api.html#react.children.only
*
* The current implementation of this function assumes that a single child gets
* passed without a wrapper, but the purpose of this helper function is to
* abstract away the particular structure of children.
*
* @param {?object} children Child collection structure.
* @return {ReactElement} The first and only `ReactElement` contained in the
* structure.
*/
function onlyChild(children) {
!isValidElement(children) ? invariant(false, 'React.Children.only expected to receive a single React element child.') : void 0;
return children;
}
var describeComponentFrame = function (name, source, ownerName) {
return '\n in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : '');
};
function getComponentName(fiber) {
var type = fiber.type;
if (typeof type === 'string') {
return type;
}
if (typeof type === 'function') {
return type.displayName || type.name;
}
return null;
}
/**
* ReactElementValidator provides a wrapper around a element factory
* which validates the props passed to the element. This is intended to be
* used only in DEV and could be replaced by a static type checker for languages
* that support it.
*/
{
var currentlyValidatingElement = null;
var propTypesMisspellWarningShown = false;
var getDisplayName = function (element) {
if (element == null) {
return '#empty';
} else if (typeof element === 'string' || typeof element === 'number') {
return '#text';
} else if (typeof element.type === 'string') {
return element.type;
} else if (element.type === REACT_FRAGMENT_TYPE) {
return 'React.Fragment';
} else {
return element.type.displayName || element.type.name || 'Unknown';
}
};
var getStackAddendum = function () {
var stack = '';
if (currentlyValidatingElement) {
var name = getDisplayName(currentlyValidatingElement);
var owner = currentlyValidatingElement._owner;
stack += describeComponentFrame(name, currentlyValidatingElement._source, owner && getComponentName(owner));
}
stack += ReactDebugCurrentFrame.getStackAddendum() || '';
return stack;
};
var VALID_FRAGMENT_PROPS = new Map([['children', true], ['key', true]]);
}
function getDeclarationErrorAddendum() {
if (ReactCurrentOwner.current) {
var name = getComponentName(ReactCurrentOwner.current);
if (name) {
return '\n\nCheck the render method of `' + name + '`.';
}
}
return '';
}
function getSourceInfoErrorAddendum(elementProps) {
if (elementProps !== null && elementProps !== undefined && elementProps.__source !== undefined) {
var source = elementProps.__source;
var fileName = source.fileName.replace(/^.*[\\\/]/, '');
var lineNumber = source.lineNumber;
return '\n\nCheck your code at ' + fileName + ':' + lineNumber + '.';
}
return '';
}
/**
* 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 = {};
function getCurrentComponentErrorInfo(parentType) {
var info = getDeclarationErrorAddendum();
if (!info) {
var parentName = typeof parentType === 'string' ? parentType : parentType.displayName || parentType.name;
if (parentName) {
info = '\n\nCheck the top-level render call using <' + parentName + '>.';
}
}
return info;
}
/**
* Warn if the element doesn't have an explicit key assigned to it.
* This element is in an array. The array could grow and shrink or be
* reordered. All children that haven't already been validated are required to
* have a "key" property assigned to it. Error statuses are cached so a warning
* will only be shown once.
*
* @internal
* @param {ReactElement} element Element that requires a key.
* @param {*} parentType element's parent's type.
*/
function validateExplicitKey(element, parentType) {
if (!element._store || element._store.validated || element.key != null) {
return;
}
element._store.validated = true;
var currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType);
if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
return;
}
ownerHasKeyUseWarning[currentComponentErrorInfo] = true;
// Usually the current owner is the offender, but if it accepts children as a
// property, it may be the creator of the child that's responsible for
// assigning it a key.
var childOwner = '';
if (element && element._owner && element._owner !== ReactCurrentOwner.current) {
// Give the component that originally created this child.
childOwner = ' It was passed a child from ' + getComponentName(element._owner) + '.';
}
currentlyValidatingElement = element;
{
warning(false, 'Each child in an array or iterator should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.%s', currentComponentErrorInfo, childOwner, getStackAddendum());
}
currentlyValidatingElement = null;
}
/**
* Ensure that every element either is passed in a static location, in an
* array with an explicit keys property defined, or in an object literal
* with valid key property.
*
* @internal
* @param {ReactNode} node Statically passed child of any type.
* @param {*} parentType node's parent's type.
*/
function validateChildKeys(node, parentType) {
if (typeof node !== 'object') {
return;
}
if (Array.isArray(node)) {
for (var i = 0; i < node.length; i++) {
var child = node[i];
if (isValidElement(child)) {
validateExplicitKey(child, parentType);
}
}
} else if (isValidElement(node)) {
// This element was passed in a valid location.
if (node._store) {
node._store.validated = true;
}
} else if (node) {
var iteratorFn = getIteratorFn(node);
if (typeof iteratorFn === 'function') {
// Entry iterators used to provide implicit keys,
// but now we print a separate warning for them later.
if (iteratorFn !== node.entries) {
var iterator = iteratorFn.call(node);
var step;
while (!(step = iterator.next()).done) {
if (isValidElement(step.value)) {
validateExplicitKey(step.value, parentType);
}
}
}
}
}
}
/**
* Given an element, validate that its props follow the propTypes definition,
* provided by the type.
*
* @param {ReactElement} element
*/
function validatePropTypes(element) {
var componentClass = element.type;
if (typeof componentClass !== 'function') {
return;
}
var name = componentClass.displayName || componentClass.name;
var propTypes = componentClass.propTypes;
if (propTypes) {
currentlyValidatingElement = element;
checkPropTypes(propTypes, element.props, 'prop', name, getStackAddendum);
currentlyValidatingElement = null;
} else if (componentClass.PropTypes !== undefined && !propTypesMisspellWarningShown) {
propTypesMisspellWarningShown = true;
warning(false, 'Component %s declared `PropTypes` instead of `propTypes`. Did you misspell the property assignment?', name || 'Unknown');
}
if (typeof componentClass.getDefaultProps === 'function') {
warning(componentClass.getDefaultProps.isReactClassApproved, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.');
}
}
/**
* Given a fragment, validate that it can only be provided with fragment props
* @param {ReactElement} fragment
*/
function validateFragmentProps(fragment) {
currentlyValidatingElement = fragment;
var _iteratorNormalCompletion = true;
var _didIteratorError = false;
var _iteratorError = undefined;
try {
for (var _iterator = Object.keys(fragment.props)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var key = _step.value;
if (!VALID_FRAGMENT_PROPS.has(key)) {
warning(false, 'Invalid prop `%s` supplied to `React.Fragment`. ' + 'React.Fragment can only have `key` and `children` props.%s', key, getStackAddendum());
break;
}
}
} catch (err) {
_didIteratorError = true;
_iteratorError = err;
} finally {
try {
if (!_iteratorNormalCompletion && _iterator['return']) {
_iterator['return']();
}
} finally {
if (_didIteratorError) {
throw _iteratorError;
}
}
}
if (fragment.ref !== null) {
warning(false, 'Invalid attribute `ref` supplied to `React.Fragment`.%s', getStackAddendum());
}
currentlyValidatingElement = null;
}
function createElementWithValidation(type, props, children) {
var validType = typeof type === 'string' || typeof type === 'function' || typeof type === 'symbol' || typeof type === 'number';
// We warn in this case but don't throw. We expect the element creation to
// succeed and there will likely be errors in render.
if (!validType) {
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 sourceInfo = getSourceInfoErrorAddendum(props);
if (sourceInfo) {
info += sourceInfo;
} else {
info += getDeclarationErrorAddendum();
}
info += getStackAddendum() || '';
warning(false, 'React.createElement: 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);
}
var element = createElement.apply(this, arguments);
// The result can be nullish if a mock or a custom function is used.
// TODO: Drop this when these are no longer allowed as the type argument.
if (element == null) {
return element;
}
// Skip key warning if the type isn't valid since our key validation logic
// doesn't expect a non-string/function type and can throw confusing errors.
// We don't want exception behavior to differ between dev and prod.
// (Rendering will throw with a helpful message and as soon as the type is
// fixed, the key warnings will appear.)
if (validType) {
for (var i = 2; i < arguments.length; i++) {
validateChildKeys(arguments[i], type);
}
}
if (typeof type === 'symbol' && type === REACT_FRAGMENT_TYPE) {
validateFragmentProps(element);
} else {
validatePropTypes(element);
}
return element;
}
function createFactoryWithValidation(type) {
var validatedFactory = createElementWithValidation.bind(null, type);
// Legacy hook TODO: Warn if this is accessed
validatedFactory.type = type;
{
Object.defineProperty(validatedFactory, 'type', {
enumerable: false,
get: function () {
lowPriorityWarning$1(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.');
Object.defineProperty(this, 'type', {
value: type
});
return type;
}
});
}
return validatedFactory;
}
function cloneElementWithValidation(element, props, children) {
var newElement = cloneElement.apply(this, arguments);
for (var i = 2; i < arguments.length; i++) {
validateChildKeys(arguments[i], newElement.type);
}
validatePropTypes(newElement);
return newElement;
}
var React = {
Children: {
map: mapChildren,
forEach: forEachChildren,
count: countChildren,
toArray: toArray,
only: onlyChild
},
Component: Component,
PureComponent: PureComponent,
unstable_AsyncComponent: AsyncComponent,
Fragment: REACT_FRAGMENT_TYPE,
createElement: createElementWithValidation,
cloneElement: cloneElementWithValidation,
createFactory: createFactoryWithValidation,
isValidElement: isValidElement,
version: ReactVersion,
__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
ReactCurrentOwner: ReactCurrentOwner,
// Used by renderers to avoid bundling object-assign twice in UMD bundles:
assign: _assign
}
};
{
_assign(React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, {
// These should not be included in production.
ReactDebugCurrentFrame: ReactDebugCurrentFrame,
// Shim for React DOM 16.0.0 which still destructured (but not used) this.
// TODO: remove in React 17.0.
ReactComponentTreeHook: {}
});
}
var React$2 = Object.freeze({
default: React
});
var React$3 = ( React$2 && React ) || React$2;
// TODO: decide on the top-level export form.
// This is hacky but makes it work with both Rollup and Jest.
var react = React$3['default'] ? React$3['default'] : React$3;
module.exports = react;
})();
}