// TODO(v3)
// import { panicReasons } from '../../core/internal/constants/solidity.js'
// import { BaseError } from '../../core/internal/errors/base.js'
// // import { ContractFunctionRevertedError } from '../../core/internal/errors/contract.js'
// import type { ErrorType } from '../../core/internal/errors/utils.js'

// /** @internal */
// export type IsNullUniversalResolverErrorErrorType = ErrorType

// /*
//  * @description Checks if error is a valid null result UniversalResolver error
//  */
// export function isNullUniversalResolverError(
//   err: unknown,
//   callType: 'resolve' | 'reverse',
// ): boolean {
//   if (!(err instanceof BaseError)) return false
//   const cause = err.walk((e) => e instanceof ContractFunctionRevertedError)
//   if (!(cause instanceof ContractFunctionRevertedError)) return false
//   if (cause.data?.errorName === 'ResolverNotFound') return true
//   if (cause.data?.errorName === 'ResolverWildcardNotSupported') return true
//   if (cause.data?.errorName === 'ResolverNotContract') return true
//   if (cause.data?.errorName === 'ResolverError') return true
//   if (cause.data?.errorName === 'HttpError') return true
//   // Backwards compatibility for older UniversalResolver contracts
//   if (
//     cause.reason?.includes(
//       'Wildcard on non-extended resolvers is not supported',
//     )
//   )
//     return true
//   // No primary name set for address.
//   if (callType === 'reverse' && cause.reason === panicReasons[50]) return true
//   return false
// }