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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import { SignUpGatekeeper } from "./SignUpGatekeeper.sol";

/// @title FreeForAllGatekeeper
/// @notice A SignUpGatekeeper which allows anyone to sign up.
contract FreeForAllGatekeeper is SignUpGatekeeper {
  /// @notice Create a new instance of FreeForAllGatekeeper
  // solhint-disable-next-line no-empty-blocks
  constructor() payable {}

  /// @notice setMaciInstance does nothing in this gatekeeper
  /// @param _maci The MACI contract
  // solhint-disable-next-line no-empty-blocks
  function setMaciInstance(address _maci) public override {}

  /// @notice Registers the user without any restrictions.
  /// @param _address The address of the user
  /// @param _data memory additional data
  // solhint-disable-next-line no-empty-blocks
  function register(address _address, bytes memory _data) public override {}

  /// @notice Get the trait of the gatekeeper
  /// @return The type of the gatekeeper
  function getTrait() public pure override returns (string memory) {
    return "FreeForAll";
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

/// @title SignUpGatekeeper
/// @notice A gatekeeper contract which allows users to sign up for a poll.
abstract contract SignUpGatekeeper {
  /// @notice Allows to set the MACI contract
  // solhint-disable-next-line no-empty-blocks
  function setMaciInstance(address _maci) public virtual {}

  /// @notice Registers the user
  /// @param _user The address of the user
  /// @param _data additional data
  // solhint-disable-next-line no-empty-blocks
  function register(address _user, bytes memory _data) public virtual {}

  /// @notice Get the trait of the gatekeeper
  /// @return The type of the gatekeeper
  function getTrait() public pure virtual returns (string memory);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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