Function createReloadAdapter

packages/node/src/dev/hotStateReload.ts:261–293

(opts: HotStateReloadOptions<S>)

}

function createReloadAdapter<S>(opts: HotStateReloadOptions<S>): Readonly<{
  entryModule: string | URL;
  targetLabel: "view" | "routes";
  applyReload: (moduleNs: unknown) => void;
}> {
  if (isViewReloadOptions(opts)) {
    const resolveView = opts.resolveView ?? defaultResolveView<S>;
    return Object.freeze({
      entryModule: opts.viewModule,
      targetLabel: "view" as const,
      applyReload: (moduleNs: unknown) => {
        const nextView = resolveView(moduleNs);
        opts.app.replaceView(nextView);
        opts.onReload?.(nextView);
      },
    });
  }

  if (isRoutesReloadOptions(opts)) {
    const resolveRoutes = opts.resolveRoutes ?? defaultResolveRoutes<S>;
    return Object.freeze({
      entryModule: opts.routesModule,
      targetLabel: "routes" as const,
      applyReload: (moduleNs: unknown) => {
        const nextRoutes = resolveRoutes(moduleNs);
        opts.app.replaceRoutes(nextRoutes);
        opts.onReload?.(nextRoutes);
      },
    });
  }

  throw new Error("HSR options must provide either `viewModule` or `routesModule`");
}

export function createHotStateReload<S>(opts: HotStateReloadOptions<S>): HotStateReloadController {
  const reloadAdapter = createReloadAdapter(opts);