import { workUnitAsyncStorage } from "../shims/internal/work-unit-async-storage.js";
//#region src/server/prerender-work-unit-setup.ts
/**
* Sets up the work unit async storage for prerendering.
*
* When VINEXT_PRERENDER=1, wraps execution in a workUnitAsyncStorage.run()
* with a PrerenderStore so that dynamic APIs (e.g., io()) can
* detect the prerender context and return hanging promises.
*
* Used by: app-rsc-entry.ts handler template.
*
* TODO: If future dynamic APIs need request-scoped stores for normal (non-prerender)
* requests, add a `{ type: "request" }` store during normal request handling.
*/
function runWithPrerenderWorkUnit(fn, options) {
	if (process.env.VINEXT_PRERENDER === "1") {
		const controller = new AbortController();
		const route = typeof options?.route === "function" ? options.route() : options?.route;
		return workUnitAsyncStorage.run({
			type: "prerender",
			renderSignal: controller.signal,
			route
		}, fn).finally(() => controller.abort());
	}
	return fn();
}
//#endregion
export { runWithPrerenderWorkUnit };

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