Function load

packages/qwik/src/optimizer/src/plugins/plugin.ts:604–670

(
    ctx: Rollup.PluginContext,
    id: string,
    loadOpts?: Parameters<Extract<Plugin['load'], Function>>[1]
  )

  let loadCount = 0;
  const load = async (
    ctx: Rollup.PluginContext,
    id: string,
    loadOpts?: Parameters<Extract<Plugin['load'], Function>>[1]
  ): Promise<Rollup.LoadResult> => {
    if (id === '\0editor') {
      // This doesn't get used, but we need to return something
      return '"opening in editor"';
    }
    if (id.startsWith('\0') || id.startsWith('/@fs/')) {
      return;
    }
    const count = loadCount++;
    const isServer = getIsServer(loadOpts);

    // Virtual modules
    if (opts.resolveQwikBuild && id === QWIK_BUILD_ID) {
      debug(`load(${count})`, QWIK_BUILD_ID, opts.buildMode);
      return {
        moduleSideEffects: false,
        code: getQwikBuildModule(isServer, opts.target),
      };
    }
    if (id === QWIK_CLIENT_MANIFEST_ID) {
      debug(`load(${count})`, QWIK_CLIENT_MANIFEST_ID, opts.buildMode);
      return {
        moduleSideEffects: false,
        code: await getQwikServerManifestModule(isServer),
      };
    }

    // QRL segments
    const parsedId = parseId(id);
    id = normalizePath(parsedId.pathId);
    const outputs = isServer ? serverTransformedOutputs : clientTransformedOutputs;
    if (devServer && !outputs.has(id)) {
      // in dev mode, it could be that the id is a QRL segment that wasn't transformed yet
      const parentId = parentIds.get(id);
      if (parentId) {
        const parentModule = devServer.moduleGraph.getModuleById(parentId);
        if (parentModule) {
          // building here via ctx.load doesn't seem to work (no transform), instead we use the devserver directly
          debug(`load(${count})`, 'transforming QRL parent', parentId);
          // We need to encode it as an absolute path
          await devServer.transformRequest(parentModule.url);
          // The QRL segment should exist now
          if (!outputs.has(id)) {
            debug(`load(${count})`, `QRL segment ${id} not found in ${parentId}`);
            return null;
          }
        } else {
          console.error(`load(${count})`, `${parentModule} does not exist!`);
        }
      }
    }

    const transformedModule = outputs.get(id);