chore: add helpful message when --unstable-ffi is not passed (#37)

denosaurs · Apr 9, 2024 · 7a6f45f · 7a6f45f
1 parent 4cce4d3
commit 7a6f45f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/mod.ts b/mod.ts
@@ -151,6 +151,9 @@ export async function dlopen<S extends Deno.ForeignLibraryInterface>(
   options: FetchOptions,
   symbols: Const<S>,
 ): Promise<Deno.DynamicLibrary<S>> {
+  if (Deno.dlopen === undefined) {
+    throw new Error("`--unstable-ffi` is required");
+  }
   // deno-lint-ignore no-explicit-any
   return Deno.dlopen<S>(await download(options), symbols as any);
 }