add readonly to BRAND-ed internal type structure

colinhacks · Oct 9, 2024 · 0bdb9a9 · 0bdb9a9
1 parent 3032e24
commit 0bdb9a9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/types.ts b/src/types.ts
@@ -4902,7 +4902,7 @@ export interface ZodBrandedDef<T extends ZodTypeAny> extends ZodTypeDef {
 
 export const BRAND: unique symbol = Symbol("zod_brand");
 export type BRAND<T extends string | number | symbol> = {
-  [BRAND]: { [k in T]: true };
+  readonly [BRAND]: { readonly [k in T]: true };
 };
 
 export class ZodBranded<