Skip to main content
Version: v2.0_alpha

HatsGatekeeperBase

Abstract contract containing the base elements of a Hats Gatekeeper contract

OnlyMACI​

error OnlyMACI()

NotWearingCriterionHat​

error NotWearingCriterionHat()

AlreadyRegistered​

error AlreadyRegistered()

ZeroAddress​

error ZeroAddress()

hats​

contract IHats hats

The Hats Protocol contract address

maci​

address maci

the reference to the MACI contract

registered​

mapping(address => bool) registered

Tracks registered users

constructor​

constructor(address _hats) internal payable

Deploy an instance of HatsGatekeeper

Parameters​

NameTypeDescription
_hatsaddressThe Hats Protocol contract

setMaciInstance​

function setMaciInstance(address _maci) public

Allows to set the MACI contract

Parameters​

NameTypeDescription
_maciaddressThe MACI contract interface to be stored