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fix(zod): support dynamic schema in zod v3 #812

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fix(zod): support dynamic schema in zod v3 #812

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99b1499
fix(zod): remove _def.typeName from Zod3Type to support dynamic schem…
shwaka Aug 23, 2025
384e0a5
test(zod): add test for dynamic schema (#782)
shwaka Aug 23, 2025
1cda243
test(zod): replace `as z.ZodType` with type annotation (#782)
shwaka Aug 23, 2025
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10 changes: 10 additions & 0 deletions zod/src/__tests__/zod-v3.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -175,4 +175,14 @@ describe('zodResolver', () => {
}>
>();
});

it('should accept z.ZodType', () => {
// https://github.com/react-hook-form/resolvers/issues/782
const schema: z.ZodType<{ id: number }> = z.object({ id: z.number() });
const resolver = zodResolver(schema);

expectTypeOf(resolver).toEqualTypeOf<
Resolver<{ id: number }, unknown, { id: number }>
>();
});
});
10 changes: 2 additions & 8 deletions zod/src/zod.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -15,11 +15,7 @@ const isZod3Error = (error: any): error is z3.ZodError => {
return Array.isArray(error?.issues);
};
const isZod3Schema = (schema: any): schema is z3.ZodSchema => {
return (
'_def' in schema &&
typeof schema._def === 'object' &&
'typeName' in schema._def
);
return '_def' in schema && typeof schema._def === 'object';
};
const isZod4Error = (error: any): error is z4.$ZodError => {
// instanceof is safe in Zod 4 (uses Symbol.hasInstance)
Expand Down Expand Up @@ -143,9 +139,7 @@ type NonRawResolverOptions = {
interface Zod3Type<O = unknown, I = unknown> {
_output: O;
_input: I;
_def: {
typeName: string;
};
_def: object;
}

// some type magic to make versions pre-3.25.0 still work
Expand Down