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/**
* Copyright 2014-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.
*
*
*/
'use strict';
// The Symbol used to tag the special React types. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.
var REACT_COROUTINE_TYPE = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.coroutine') || 0xeac8;
var REACT_YIELD_TYPE = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.yield') || 0xeac9;
exports.createCoroutine = function (children, handler, props) {
var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
var coroutine = {
// This tag allow us to uniquely identify this as a React Coroutine
$$typeof: REACT_COROUTINE_TYPE,
key: key == null ? null : '' + key,
children: children,
handler: handler,
props: props
};
if (process.env.NODE_ENV !== 'production') {
// TODO: Add _store property for marking this as validated.
if (Object.freeze) {
Object.freeze(coroutine.props);
Object.freeze(coroutine);
}
}
return coroutine;
};
exports.createYield = function (props, continuation) {
var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
var yieldNode = {
// This tag allow us to uniquely identify this as a React Yield
$$typeof: REACT_YIELD_TYPE,
key: key == null ? null : '' + key,
props: props,
continuation: continuation
};
if (process.env.NODE_ENV !== 'production') {
// TODO: Add _store property for marking this as validated.
if (Object.freeze) {
Object.freeze(yieldNode.props);
Object.freeze(yieldNode);
}
}
return yieldNode;
};
/**
* Verifies the object is a coroutine object.
*/
exports.isCoroutine = function (object) {
return typeof object === 'object' && object !== null && object.$$typeof === REACT_COROUTINE_TYPE;
};
/**
* Verifies the object is a yield object.
*/
exports.isYield = function (object) {
return typeof object === 'object' && object !== null && object.$$typeof === REACT_YIELD_TYPE;
};
exports.REACT_YIELD_TYPE = REACT_YIELD_TYPE;
exports.REACT_COROUTINE_TYPE = REACT_COROUTINE_TYPE;
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