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/**
* 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';
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
var Deferred = require("./Deferred");
var invariant = require("./invariant");
/**
* A map of asynchronous values that can be get or set in any order. Unlike a
* normal map, setting the value for a particular key more than once throws.
* Also unlike a normal map, a key can either be resolved or rejected.
*/
var PromiseMap = /*#__PURE__*/function () {
function PromiseMap() {
_defineProperty(this, "_deferred", void 0);
this._deferred = {};
}
var _proto = PromiseMap.prototype;
_proto.get = function get(key) {
return getDeferred(this._deferred, key).getPromise();
};
_proto.resolveKey = function resolveKey(key, value) {
var entry = getDeferred(this._deferred, key);
!!entry.isSettled() ? process.env.NODE_ENV !== "production" ? invariant(false, 'PromiseMap: Already settled `%s`.', key) : invariant(false) : void 0;
entry.resolve(value);
};
_proto.rejectKey = function rejectKey(key, reason) {
var entry = getDeferred(this._deferred, key);
!!entry.isSettled() ? process.env.NODE_ENV !== "production" ? invariant(false, 'PromiseMap: Already settled `%s`.', key) : invariant(false) : void 0;
entry.reject(reason);
};
return PromiseMap;
}();
function getDeferred(entries, key) {
if (!entries.hasOwnProperty(key)) {
entries[key] = new Deferred();
}
return entries[key];
}
module.exports = PromiseMap;
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