Poll Factory Smart Contract

info

Code location: PollFactory.sol

PollFactory is a smart contract that is used to deploy new Polls. This is used by MACI inside the deployPoll function.

function deploy(
    _duration,
    TreeDepths calldata _treeDepths,
    PubKey calldata _coordinatorPubKey,
    address _maci
) public virtual returns (address pollAddr) {
    /// @notice deploy a new AccQueue contract to store messages
    AccQueue messageAq = new AccQueueQuinaryMaci(_treeDepths.messageTreeSubDepth);

    /// @notice the smart contracts that a Poll would interact with
    ExtContracts memory extContracts = ExtContracts({ maci: IMACI(_maci), messageAq: messageAq });

    // deploy the poll
    Poll poll = new Poll(_duration, _treeDepths, _coordinatorPubKey, extContracts);

    // Make the Poll contract own the messageAq contract, so only it can
    // run enqueue/merge
    messageAq.transferOwnership(address(poll));

    // init Poll
    poll.init();

    pollAddr = address(poll);
  }

Upon deployment, the following will happen:

• ownership of the messageAq contract is transferred to the deployed poll contract