@aurelia/platform-browser/dist/esm/index.mjs

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import { Platform as e } from "@aurelia/platform";

class BrowserPlatform extends e {
    static getOrCreate(e, t = {}) {
        let r = BrowserPlatform.t.get(e);
        if (r === void 0) {
            BrowserPlatform.t.set(e, r = new BrowserPlatform(e, t));
        }
        return r;
    }
    static set(e, t) {
        BrowserPlatform.t.set(e, t);
    }
    constructor(e, t = {}) {
        super(e, t);
        const notImplemented = e => () => {
            throw new Error(`The PLATFORM did not receive a valid reference to the global function '${e}'.`);
        };
        ("Node Element HTMLElement CustomEvent CSSStyleSheet ShadowRoot MutationObserver " + "window document customElements").split(" ").forEach(r => this[r] = r in t ? t[r] : e[r]);
        "fetch requestAnimationFrame cancelAnimationFrame".split(" ").forEach(r => this[r] = r in t ? t[r] : e[r]?.bind(e) ?? notImplemented(r));
    }
}

BrowserPlatform.t = new WeakMap;

export { BrowserPlatform };
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