51 lines
1.6 KiB
HTML
51 lines
1.6 KiB
HTML
<!--
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@license
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Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
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This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
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The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
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The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
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Code distributed by Google as part of the polymer project is also
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subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
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-->
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<link rel="import" href="class.html">
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<script>
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(function() {
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'use strict';
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/**
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* Legacy class factory and registration helper for defining Polymer
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* elements.
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*
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* This method is equivalent to
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* `customElements.define(info.is, Polymer.Class(info));`
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*
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* See `Polymer.Class` for details on valid legacy metadata format for `info`.
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*
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* @global
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* @override
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* @function Polymer
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* @param {!PolymerInit} info Object containing Polymer metadata and functions
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* to become class methods.
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* @return {function(new: HTMLElement)} Generated class
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* @suppress {duplicate, invalidCasts, checkTypes}
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*/
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window.Polymer._polymerFn = function(info) {
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// if input is a `class` (aka a function with a prototype), use the prototype
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// remember that the `constructor` will never be called
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let klass;
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if (typeof info === 'function') {
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klass = info;
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} else {
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klass = Polymer.Class(info);
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}
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customElements.define(klass.is, /** @type {!HTMLElement} */(klass));
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return klass;
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};
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})();
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</script>
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