Add unwrapWritableDraft util

garronej · Feb 22, 2024 · 63c0cb3 · 63c0cb3
1 parent fa50c9f
commit 63c0cb3
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/src/utils/unwrapWritableDraft.ts b/src/utils/unwrapWritableDraft.ts
@@ -0,0 +1,11 @@
+import type * as immerTypesExternal from "immer/dist/types/types-external";
+
+export type { immerTypesExternal };
+
+export type UnwrapWritableDraft<T> = T extends immerTypesExternal.WritableDraft<infer U> ? U : never;
+
+export function unwrapWritableDraft<T extends immerTypesExternal.WritableDraft<any>>(
+    wrapped: T
+): UnwrapWritableDraft<T> {
+    return wrapped as any;
+}