fix: Invalid match for masked fragments in #370

0no-co · Aug 18, 2024 · 8849b97 · 8849b97
1 parent 15da5c3
commit 8849b97
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/selection.ts b/src/selection.ts
@@ -12,7 +12,11 @@ type ObjectLikeType = {
   fields: { [key: string]: any };
 };
 
-type narrowTypename<T, Typename> = T extends { __typename?: Typename } ? T : never;
+type narrowTypename<T, Typename> = '__typename' extends keyof T
+  ? T extends { __typename?: Typename }
+    ? T
+    : never
+  : T;
 
 type unwrapTypeRec<
   Type,