/* */

/* eslint-disable no-return-assign */

/* harmony default export */

/* harmony export (binding) */

/* harmony import */

/* harmony reexport (safe) */

/*#__PURE__*/

/**
         * If a prop switches from controlled to Uncontrolled
         * reset its value to the defaultValue
         */

/**
   * If a prop switches from controlled to Uncontrolled
   * reset its value to the defaultValue
   */

/**
   * useful when wrapping a Component and you want to control
   * everything
   */

/**
 * An `addEventListener` ponyfill, supports the `once` option
 */

/**
 * 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.
 */

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

/**
 * Copyright 2013-2014, Facebook, Inc.
 * All rights reserved.
 * https://github.com/facebook/react/blob/2aeb8a2a6beb00617a4217f7f8284924fa2ad819/src/vendor/core/hyphenateStyleName.js
 */

/**
 * Creates a `Ref` whose value is updated in an effect, ensuring the most recent
 * value is the one rendered with. Generally only required for Concurrent mode usage
 * where previous work in `render()` may be discarded befor being used.
 *
 * This is safe to access in an event handler.
 *
 * @param value The `Ref` value
 */

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

/**
* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

/**
* Extract a property value from each element of an object array.
*
* @module @stdlib/utils/pluck
*
* @example
* var pluck = require( '@stdlib/utils/pluck' );
*
* var arr = [
*     { 'a': 1, 'b': 2 },
*     { 'a': 0.5, 'b': 3 }
* ];
*
* var out = pluck( arr, 'a' );
* // returns [ 1, 0.5 ]
*
* arr = [
*     { 'a': 1, 'b': 2 },
*     { 'a': 0.5, 'b': 3 }
* ];
*
* out = pluck( arr, 'a', {'copy':false} );
* // returns [ 1, 0.5 ]
*
* var bool = ( arr[ 0 ] === out[ 0 ] );
* // returns true
*/

/**
* Extracts a property value from each element of an object array.
*
* @param {Array} arr - source array
* @param {*} prop - property to access
* @param {Options} [options] - function options
* @param {boolean} [options.copy=true] - boolean indicating whether to return a new data structure
* @throws {TypeError} first argument must be an object array
* @throws {TypeError} options argument must be an object
* @throws {TypeError} must provide valid options
* @returns {Array} destination array
*
* @example
* var arr = [
*     { 'a': 1, 'b': 2 },
*     { 'a': 0.5, 'b': 3 }
* ];
*
* var out = pluck( arr, 'a' );
* // returns [ 1, 0.5 ]
*
* @example
* var arr = [
*     { 'a': 1, 'b': 2 },
*     { 'a': 0.5, 'b': 3 }
* ];
*
* var out = pluck( arr, 'a', {'copy':false} );
* // returns [ 1, 0.5 ]
*
* var bool = ( arr[ 0 ] === out[ 0 ] );
* // returns true
*/

/**
* Validates function options.
*
* @private
* @param {Object} opts - destination object
* @param {Options} options - options to validate
* @param {boolean} [options.copy] - boolean indicating whether to return a new data structure
* @returns {(Error|null)} error or null
*
* @example
* var opts = {};
* var options = {
*     'copy': false
* };
* var err = validate( opts, options );
* if ( err ) {
*     throw err;
* }
*/

/***/

//         nextStatus = ENTERING

//         nextStatus = EXITING

//       if (status !== ENTERING && status !== ENTERED) {

//       if (status === ENTERING || status === ENTERED) {

//       }

//     const { status } = this.state

//     if (this.props.in) {

//     }

//     } else {

//   if (prevProps !== this.props) {

//   let nextStatus = null

//   return { nextStatus }

//   }

// 16.3+ will not execute our will-update method;

// Add a flag to suppress these warnings for this special case.

// As a workaround, use cWM and cWRP to invoke the new static lifecycle.

// As a workaround, use cWU to invoke the new lifecycle.

// Because for <= 15.x versions this might be a "prevContext" object.

// Because get-snapshot might return a falsy value.

// Because they would work differently between older and newer (16.3+) versions of React.

// Binding "this" is important for shallow renderer support.

// Call this.constructor.gDSFP to support sub-classes.

// EXPORTS //

// Error if any of these lifecycles are present,

// If new component APIs are defined, "unsafe" lifecycles won't be called.

// In the context of a TransitionGroup all enters are really appears

// It will pass a snapshot value to did-update though.

// MAIN //

// MODULES //

// Name the function so it is clearer in the documentation

// Newer versions of React will ignore that lifecycle if gSBU exists.

// Newer versions of React will ignore these lifecycles if gDSFP exists.

// Older versions will require our polyfilled will-update value.

// React <= 16.2 does not support getSnapshotBeforeUpdate.

// React <= 16.2 does not support static getDerivedStateFromProps.

// React may warn about cWM/cWRP/cWU methods being deprecated.

// So check for the explicit __reactInternalSnapshotFlag flag to determine behavior.

// TODO: remove fallback for next major

// This shouldn't be necessary, but there are weird race conditions with

// Use the setState() updater to ensure state isn't stale in certain edge cases.

// We also can't just check "__reactInternalSnapshot",

// We need to handle both cases, but can't just check for the presence of "maybeSnapshot",

// add default propTypes for folks that use runtime checks

// allows for nested Transitions

// eslint-disable-next-line @typescript-eslint/no-unused-expressions

// eslint-disable-next-line no-multi-assign

// getSnapshotBeforeUpdate(prevProps) {

// if we are mounting and running this it means appear _must_ be set

// nextStatus will always be ENTERING or EXITING.

// no enter animation skip right to ENTERED

// no exit animation skip right to EXITED

// reading a dimension prop will cause the browser to recalculate,

// setState callbacks and unmounting in testing, so always make sure that

// we can cancel any pending setState callbacks after we unmount.

// we don't care about invariant's own frame

// which will let our animations work

// }

//let setState trigger the update
