tornadocash/tornado-trees
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move deposits length to a separate var

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This commit is contained in:
Alexey 2021-02-04 20:47:47 +03:00
parent c4b81058ed
commit b59fbcf169
3 changed files with 29 additions and 20 deletions
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36
contracts/TornadoTrees.sol
View File

@ -25,10 +25,12 @@ contract TornadoTrees is EnsResolve {
uint256 public constant BYTES_SIZE = 32 + 32 + 4 + CHUNK_SIZE * ITEM_SIZE;
uint256 public constant SNARK_FIELD = 21888242871839275222246405745257275088548364400416034343698204186575808495617;
bytes32[] public deposits;
mapping(uint256 => bytes32) public deposits;
uint256 public depositsLength;
uint256 public lastProcessedDepositLeaf;
bytes32[] public withdrawals;
mapping(uint256 => bytes32) public withdrawals;
uint256 public withdrawalsLength;
uint256 public lastProcessedWithdrawalLeaf;
bool public initialized;
@ -86,8 +88,6 @@ contract TornadoTrees is EnsResolve {
lastProcessedWithdrawalLeaf = withdrawalLeaf;
uint256 i = depositLeaf;
// todo deposits.length = _tornadoTreesV1.deposits.length
while (true) {
(bool success, bytes memory data) = address(_tornadoTreesV1).staticcall{ gas: 3000 }( // todo define more specise gas value.
abi.encodeWithSignature("deposits(uint256)", i)
@ -96,9 +96,10 @@ contract TornadoTrees is EnsResolve {
break;
}
bytes32 deposit = abi.decode(data, (bytes32));
deposits[i] = deposit;
i++;
deposits.push(deposit);
}
depositsLength = depositLeaf + i;
i = withdrawalLeaf;
while (true) {
@ -110,25 +111,28 @@ contract TornadoTrees is EnsResolve {
break;
}
bytes32 withdrawal = abi.decode(data, (bytes32));
withdrawals[i] = withdrawal;
i++;
withdrawals.push(withdrawal);
}
withdrawalsLength = withdrawalLeaf + i;
}
function registerDeposit(address _instance, bytes32 _commitment) external onlyTornadoProxy onlyInitialized {
deposits.push(keccak256(abi.encode(_instance, _commitment, blockNumber())));
emit DepositData(_instance, _commitment, blockNumber(), deposits.length - 1);
uint256 _depositsLength = depositsLength;
deposits[_depositsLength] = keccak256(abi.encode(_instance, _commitment, blockNumber()));
emit DepositData(_instance, _commitment, blockNumber(), _depositsLength - 1);
}
function registerWithdrawal(address _instance, bytes32 _nullifierHash) external onlyTornadoProxy onlyInitialized {
withdrawals.push(keccak256(abi.encode(_instance, _nullifierHash, blockNumber())));
emit WithdrawalData(_instance, _nullifierHash, blockNumber(), withdrawals.length - 1);
uint256 _withdrawalsLength = withdrawalsLength;
withdrawals[_withdrawalsLength] = keccak256(abi.encode(_instance, _nullifierHash, blockNumber()));
emit WithdrawalData(_instance, _nullifierHash, blockNumber(), _withdrawalsLength - 1);
}
function migrate(TreeLeaf[] calldata _depositEvents, TreeLeaf[] calldata _withdrawalEvents) external {
require(!initialized, "Already migrated");
uint256 _lastProcessedDepositLeaf = lastProcessedDepositLeaf;
uint256 _depositLength = deposits.length;
uint256 _depositLength = depositsLength;
for (uint256 i = 0; i < _depositLength - _lastProcessedDepositLeaf; i++) {
bytes32 leafHash = keccak256(abi.encode(_depositEvents[i].instance, _depositEvents[i].hash, _depositEvents[i].block));
require(leafHash == deposits[_lastProcessedDepositLeaf + i], "Incorrect deposit");
@ -140,7 +144,7 @@ contract TornadoTrees is EnsResolve {
);
}
uint256 _withdrawalLength = withdrawals.length;
uint256 _withdrawalLength = withdrawalsLength;
uint256 _lastProcessedWithdrawalLeaf = lastProcessedWithdrawalLeaf;
for (uint256 i = 0; i < _withdrawalLength - _lastProcessedWithdrawalLeaf; i++) {
bytes32 leafHash = keccak256(
@ -245,16 +249,16 @@ contract TornadoTrees is EnsResolve {
require(_withdrawalRoot == withdrawalRoot || _withdrawalRoot == previousWithdrawalRoot, "Incorrect withdrawal tree root");
}
function getRegisteredDeposits() external view returns (uint256 count, bytes32[] memory _deposits) {
count = deposits.length - lastProcessedDepositLeaf;
function getRegisteredDeposits() external view returns (bytes32[] memory _deposits) {
uint256 count = depositsLength - lastProcessedDepositLeaf;
_deposits = new bytes32[](count);
for (uint256 i = 0; i < count; i++) {
_deposits[i] = deposits[lastProcessedDepositLeaf + i];
}
}
function getRegisteredWithdrawals() external view returns (uint256 count, bytes32[] memory _withdrawals) {
count = withdrawals.length - lastProcessedWithdrawalLeaf;
function getRegisteredWithdrawals() external view returns (bytes32[] memory _withdrawals) {
uint256 count = withdrawalsLength - lastProcessedWithdrawalLeaf;
_withdrawals = new bytes32[](count);
for (uint256 i = 0; i < count; i++) {
_withdrawals[i] = withdrawals[lastProcessedWithdrawalLeaf + i];

7
contracts/mocks/TornadoTreesMock.sol
View File

@ -37,9 +37,12 @@ contract TornadoTreesMock is TornadoTrees {
uint256 _withdrawBlockNumber
) public {
setBlockNumber(_depositBlockNumber);
deposits.push(keccak256(abi.encode(_instance, _commitment, blockNumber())));
deposits[depositsLength] = keccak256(abi.encode(_instance, _commitment, blockNumber()));
depositsLength++;
setBlockNumber(_withdrawBlockNumber);
withdrawals.push(keccak256(abi.encode(_instance, _nullifier, blockNumber())));
withdrawals[withdrawalsLength] = keccak256(abi.encode(_instance, _nullifier, blockNumber()));
withdrawalsLength++;
}
function updateDepositTreeMock(

6
test/tornadoTrees.test.js
View File

@ -122,7 +122,8 @@ describe('TornadoTrees', function () {
describe('#getRegisteredDeposits', () => {
it('should work', async () => {
const abi = new ethers.utils.AbiCoder()
let { count, _deposits } = await tornadoTrees.getRegisteredDeposits()
const count = await tornadoTrees.depositsLength()
const _deposits = await tornadoTrees.getRegisteredDeposits()
expect(count).to.be.equal(notes.length)
_deposits.forEach((hash, i) => {
const encodedData = abi.encode(
@ -149,7 +150,8 @@ describe('TornadoTrees', function () {
describe('#getRegisteredWithdrawals', () => {
it('should work', async () => {
const abi = new ethers.utils.AbiCoder()
let { count, _withdrawals } = await tornadoTrees.getRegisteredWithdrawals()
const count = await tornadoTrees.withdrawalsLength()
const _withdrawals = await tornadoTrees.getRegisteredWithdrawals()
expect(count).to.be.equal(notes.length)
_withdrawals.forEach((hash, i) => {
const encodedData = abi.encode(