rwsdk/dist/runtime/render/preloads.js

Build fast, server-driven webapps on Cloudflare with SSR, RSC, and realtime

import { jsx as _jsx, Fragment as _Fragment } from "react/jsx-runtime";
import { getManifest } from "../lib/manifest.js";
// context(justinvdm, 2026-03-15): See toManifestKey in stylesheets.tsx for
// why we strip the leading slash.
const toManifestKey = (id) => (id.startsWith("/") ? id.slice(1) : id);
export function findScriptForModule(id, manifest) {
    const visited = new Set();
    function find(id) {
        if (visited.has(id)) {
            return;
        }
        visited.add(id);
        const manifestEntry = manifest[toManifestKey(id)];
        if (!manifestEntry) {
            return;
        }
        if (manifestEntry.isEntry || manifestEntry.isDynamicEntry) {
            return manifestEntry;
        }
        if (manifestEntry.imports) {
            for (const dep of manifestEntry.imports) {
                const entry = find(dep);
                if (entry) {
                    return entry;
                }
            }
        }
        return;
    }
    return find(id);
}
import { toAbsoluteHref } from "./assetPaths.js";
export const Preloads = async ({ requestInfo, }) => {
    const manifest = await getManifest();
    const allScripts = new Set();
    for (const scriptId of requestInfo.rw.scriptsToBeLoaded) {
        const script = findScriptForModule(scriptId, manifest);
        if (script) {
            allScripts.add(toAbsoluteHref(script.file));
        }
    }
    return (_jsx(_Fragment, { children: Array.from(allScripts).map((href) => (_jsx("link", { rel: "modulepreload", href: href }, href))) }));
};