chromium/third_party/material_web_components/components-chromium/node_modules/lit-html/directives/ref.js

import{nothing as t}from'../lit-html.js';import{AsyncDirective as i}from'../async-directive.js';import{directive as s}from'../directive.js';
/**
 * @license
 * Copyright 2020 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */const e=()=>new h;class h{}const o=new WeakMap,n=s(class extends i{render(i){return t}update(i,[s]){const e=s!==this.G;return e&&void 0!==this.G&&this.ot(void 0),(e||this.rt!==this.lt)&&(this.G=s,this.ct=i.options?.host,this.ot(this.lt=i.element)),t}ot(t){if("function"==typeof this.G){const i=this.ct??globalThis;let s=o.get(i);void 0===s&&(s=new WeakMap,o.set(i,s)),void 0!==s.get(this.G)&&this.G.call(this.ct,void 0),s.set(this.G,t),void 0!==t&&this.G.call(this.ct,t)}else this.G.value=t}get rt(){return"function"==typeof this.G?o.get(this.ct??globalThis)?.get(this.G):this.G?.value}disconnected(){this.rt===this.lt&&this.ot(void 0)}reconnected(){this.ot(this.lt)}});export{e as createRef,n as ref};
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