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/*
* Copyright (C)2005-2019 Haxe Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package js.lib;
/**
The `WeakMap` object is a collection of key/value pairs in which the keys are weakly referenced.
The keys must be objects and the values can be arbitrary values.
You can learn more about WeakMaps in the section [WeakMap object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Keyed_collections#WeakMap_object)
in [Keyed collections](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Keyed_collections).
Documentation [WeakMap](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap) by [Mozilla Contributors](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap$history), licensed under [CC-BY-SA 2.5](https://creativecommons.org/licenses/by-sa/2.5/).
**/
@:native("WeakMap")
extern class WeakMap<T> {
/**
The value of the `length` property is 0.
**/
static final length:Int;
/**
If an iterable object is passed, all of its elements will be added to the new WeakSet.
null is treated as undefined.
**/
@:pure function new(?iterable:Any);
/**
Removes any value associated to the `key`. `has(key)` will return `false` afterwards.
**/
function delete(key:{}):Bool;
/**
Returns the value associated to the `key`, or `undefined` if there is none.
**/
@:pure function get(key:{}):T;
/**
Returns a Boolean asserting whether a value has been associated to the `key` in the `WeakMap` object or not.
**/
@:pure function has(key:{}):Bool;
/**
Sets the value for the `key` in the `WeakMap` object. Returns the `WeakMap` object.
**/
function set(key:{}, value:T):WeakMap<T>;
}
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