28 lines
770 B
JavaScript
28 lines
770 B
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict';
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module.metadata = {
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'stability': 'experimental'
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};
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const method = require('../../method/core');
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lazyRequire(this, '../util/uuid', "uuid");
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// NOTE: use lang/functional memoize when it is updated to use WeakMap
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function memoize(f) {
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const memo = new WeakMap();
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return function memoizer(o) {
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let key = o;
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if (!memo.has(key))
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memo.set(key, f.apply(this, arguments));
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return memo.get(key);
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};
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}
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var identify = method('identify');
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identify.define(Object, memoize(function() { return uuid(); }));
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exports.identify = identify;
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