mirror of
https://github.com/Doodle3D/Doodle3D-API
synced 2024-12-23 22:13:48 +01:00
42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
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/* */
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'use strict';
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var $ = require("./$"),
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weak = require("./$.collection-weak"),
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leakStore = weak.leakStore,
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ID = weak.ID,
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WEAK = weak.WEAK,
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has = $.has,
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isObject = $.isObject,
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isExtensible = Object.isExtensible || isObject,
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tmp = {};
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var $WeakMap = require("./$.collection")('WeakMap', function(get) {
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return function WeakMap() {
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return get(this, arguments[0]);
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};
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}, {
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get: function get(key) {
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if (isObject(key)) {
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if (!isExtensible(key))
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return leakStore(this).get(key);
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if (has(key, WEAK))
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return key[WEAK][this[ID]];
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}
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},
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set: function set(key, value) {
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return weak.def(this, key, value);
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}
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}, weak, true, true);
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if (new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7) {
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$.each.call(['delete', 'has', 'get', 'set'], function(key) {
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var proto = $WeakMap.prototype,
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method = proto[key];
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require("./$.redef")(proto, key, function(a, b) {
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if (isObject(a) && !isExtensible(a)) {
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var result = leakStore(this)[key](a, b);
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return key == 'set' ? this : result;
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}
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return method.call(this, a, b);
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});
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});
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}
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