Function mergeValues

packages/zod/src/v3/types.ts:3241–3285

(a: any, b: any)

}

function mergeValues(a: any, b: any): { valid: true; data: any } | { valid: false } {
  const aType = getParsedType(a);
  const bType = getParsedType(b);

  if (a === b) {
    return { valid: true, data: a };
  } else if (aType === ZodParsedType.object && bType === ZodParsedType.object) {
    const bKeys = util.objectKeys(b);
    const sharedKeys = util.objectKeys(a).filter((key) => bKeys.indexOf(key) !== -1);

    const newObj: any = { ...a, ...b };
    for (const key of sharedKeys) {
      const sharedValue = mergeValues(a[key], b[key]);
      if (!sharedValue.valid) {
        return { valid: false };
      }
      newObj[key] = sharedValue.data;
    }

    return { valid: true, data: newObj };
  } else if (aType === ZodParsedType.array && bType === ZodParsedType.array) {
    if (a.length !== b.length) {
      return { valid: false };
    }

    const newArray: unknown[] = [];
    for (let index = 0; index < a.length; index++) {
      const itemA = a[index];
      const itemB = b[index];
      const sharedValue = mergeValues(itemA, itemB);

      if (!sharedValue.valid) {
        return { valid: false };
      }

      newArray.push(sharedValue.data);
    }

    return { valid: true, data: newArray };
  } else if (aType === ZodParsedType.date && bType === ZodParsedType.date && +a === +b) {
    return { valid: true, data: a };
  } else {
    return { valid: false };
  }
}

export class ZodIntersection<T extends ZodTypeAny, U extends ZodTypeAny> extends ZodType<
  T["_output"] & U["_output"],