fix: anonymous default exports with server functions (#1808)

Author: brenelz

.changeset/lovely-comics-hammer.md

@@ -0,0 +1,5 @@
+---
+"@solidjs/start": patch
+---
+
+Fix issue with anonymous default exports

packages/start/package.json

@@ -65,7 +65,7 @@
   "dependencies": {
     "@vinxi/plugin-directives": "^0.5.0",
     "@vinxi/server-components": "^0.5.0",
-    "@tanstack/server-functions-plugin": "^1.103.1",
+    "@tanstack/server-functions-plugin": "^1.105.2",
     "defu": "^6.1.2",
     "error-stack-parser": "^2.1.4",
     "html-to-image": "^1.11.11",

packages/tests/cypress/e2e/server-function.cy.ts

@@ -48,4 +48,8 @@ describe("server-function", () => {
       .its("status")
       .should("eq", 404);
   });
+  it("should build when anon default export and server functions", () => {
+    cy.visit("is-server-with-anon-default-export");
+    cy.get("#server-fn-test").contains('{"serverFnWithIsServer":true}');
+  });
 });

packages/tests/src/app.tsx

@@ -41,6 +41,9 @@ export default function App() {
             <li>
               <a href="/treeshaking/side-effects">treeshaking (w/ side-effects)</a>
             </li>
+            <li>
+              <a href="/is-server-with-anon-default-export">is server with anon default export</a>
+            </li>
           </ul>
           <Suspense>{props.children}</Suspense>
         </MetaProvider>

packages/tests/src/functions/use-is-server-with-anon-default-export.ts

@@ -0,0 +1,10 @@
+import { isServer } from "solid-js/web";
+
+export function serverFnWithIsServer() {
+    "use server";
+    return isServer;
+}
+
+export default function () {
+    return null;
+}

packages/tests/src/routes/is-server-with-anon-default-export.tsx

@@ -0,0 +1,19 @@
+import { createEffect, createSignal } from "solid-js";
+import { serverFnWithIsServer } from "~/functions/use-is-server-with-anon-default-export";
+
+export default function App() {
+    const [output, setOutput] = createSignal<{ serverFnWithIsServer?: boolean }>({});
+
+
+    createEffect(async () => {
+        const restult = await serverFnWithIsServer();
+        setOutput(prev => ({ ...prev, serverFnWithIsServer: restult }));
+    });
+
+
+    return (
+        <main>
+            <span id="server-fn-test">{JSON.stringify(output())}</span>
+        </main>
+    );
+}