tornado-instances/contracts/instances/ERC20TornadoCloneable.sol

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2023-04-08 21:43:42 +03:00
// SPDX-License-Identifier: MIT
pragma solidity 0.7.6;
pragma abicoder v2;
import "tornado-core/contracts/ERC20Tornado.sol";
contract ERC20TornadoCloneable is ERC20Tornado {
constructor(address verifier, address hasher) ERC20Tornado(IVerifier(verifier), IHasher(hasher), 1, 1, IERC20(address(0))) {}
function init(uint256 _denomination, uint32 _merkleTreeHeight, address _token) external {
require(denomination == 0 && levels == 0, "already initialized");
token = IERC20(_token);
require(_denomination > 0, "denomination should be greater than 0");
denomination = _denomination;
require(_merkleTreeHeight > 0, "_levels should be greater than zero");
require(_merkleTreeHeight < 32, "_levels should be less than 32");
levels = _merkleTreeHeight;
for (uint32 i = 0; i < _merkleTreeHeight; i++) {
filledSubtrees[i] = zeros(i);
}
roots[0] = zeros(_merkleTreeHeight - 1);
}
}