react-code-dataset / next.js /packages /next /src /build /webpack /loaders /next-flight-loader /action-validate.ts
| // This function ensures that all the exported values are valid server actions, | |
| // during the runtime. By definition all actions are required to be async | |
| // functions, but here we can only check that they are functions. | |
| export function ensureServerEntryExports(actions: any[]) { | |
| for (let i = 0; i < actions.length; i++) { | |
| const action = actions[i] | |
| if (typeof action !== 'function') { | |
| throw new Error( | |
| `A "use server" file can only export async functions, found ${typeof action}.\nRead more: https://nextjs.org/docs/messages/invalid-use-server-value` | |
| ) | |
| } | |
| } | |
| } | |