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import { makeLazy } from "./misc";
const ProxyDummy = function () { };
/**
* Wraps the result of {@see makeLazy} in a Proxy you can consume as if it wasn't lazy.
* On first property access, the lazy is evaluated
* @param factory lazy factory
* @returns Proxy
*
* Note that the example below exists already as an api, see {@link lazyWebpack}
* @example const mod = proxyLazy(() => findByProps("blah")); console.log(mod.blah);
*/
export function proxyLazy<T>(factory: () => T): T {
const lazy = makeLazy(factory);
return new Proxy(ProxyDummy, {
get: (_, prop) => lazy()[prop],
set: (_, prop, value) => lazy()[prop] = value,
has: (_, prop) => prop in lazy(),
apply: (_, $this, args) => (lazy() as Function).apply($this, args),
ownKeys: () => Reflect.ownKeys(lazy() as object),
construct: (_, args) => Reflect.construct(lazy() as Function, args),
deleteProperty: (_, prop) => delete lazy()[prop],
defineProperty: (_, property, attributes) => !!Object.defineProperty(lazy(), property, attributes),
getPrototypeOf: () => Object.getPrototypeOf(lazy())
}) as any as T;
}
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