feat: allow default exports on .server. files

Author: wobsoriano

playground/lib/todo.server.ts

@@ -5,6 +5,8 @@ export async function getTodos () {
   return todos
 }
 
+export default getTodos
+
 export function getTodo (id: number) {
   return prisma.todo.findFirstOrThrow({
     where: {

playground/pages/index.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { useAsyncData } from '#app'
-import { deleteTodo, toggleTodo, getTodos } from '~~/lib/todo.server'
+import getTodos, { deleteTodo, toggleTodo } from '~~/lib/todo.server'
 
 const { data: todos, refresh } = await useAsyncData(() => getTodos())
 

src/runtime/plugin.ts

@@ -37,7 +37,7 @@ async function transformExports (src: string, moduleId: string) {
 
   const exportList = exports.map((e) => {
     if (e.n === 'default') {
-      throw new Error('Default exports are not allowed!')
+      return `export default (...args) => useRemoteFunction('${moduleId}.${e.n}', args)`
     }
 
     return `export const ${e.n} = (...args) => useRemoteFunction('${moduleId}.${e.n}', args)`