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Latest 25 from a total of 2,420 transactions
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Contract Source Code Verified (Exact Match)
Contract Name:
CortexModule
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import {InterchainModule} from "./InterchainModule.sol";
import {CortexModuleEvents} from "../events/CortexModuleEvents.sol";
import {ICortexGasOracle} from "../interfaces/ICortexGasOracle.sol";
import {ICortexModule} from "../interfaces/ICortexModule.sol";
import {InterchainEntry, InterchainEntryLib} from "../libs/InterchainEntry.sol";
import {ModuleEntryLib} from "../libs/ModuleEntry.sol";
import {ThresholdECDSA} from "../libs/ThresholdECDSA.sol";
import {VersionedPayloadLib} from "../libs/VersionedPayload.sol";
import {ClaimableFees} from "../fees/ClaimableFees.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {MessageHashUtils} from "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol";
contract CortexModule is InterchainModule, ClaimableFees, Ownable, CortexModuleEvents, ICortexModule {
using VersionedPayloadLib for bytes;
// TODO: make sure this is a good enough default value
uint256 public constant DEFAULT_VERIFY_GAS_LIMIT = 100_000;
/// @dev Struct to hold the verifiers and the threshold for the module.
ThresholdECDSA internal _verifiers;
/// @dev Gas limit for the verifyEntry function on the remote chain.
mapping(uint64 chainId => uint256 gasLimit) internal _verifyGasLimit;
/// @dev Hash of the last gas data sent to the remote chain.
mapping(uint64 chainId => bytes32 gasDataHash) internal _lastGasDataHash;
/// @dev Nonce of the last gas data received from the remote chain.
mapping(uint64 chainId => uint64 gasDataNonce) internal _lastGasDataNonce;
/// @dev Fraction of the fees to be paid to the claimer (100% = 1e18).
uint256 internal _claimerFraction;
/// @dev Recipient of the fees collected by the module.
address internal _feeRecipient;
/// @notice Address of the gas oracle used for estimating the verification fees.
address public gasOracle;
constructor(address interchainDB, address owner_) InterchainModule(interchainDB) Ownable(owner_) {
// ThresholdECDSA throws an explicit error if threshold is not set, so default value is not needed
}
// ═══════════════════════════════════════════════ PERMISSIONED ════════════════════════════════════════════════════
/// @notice Adds a new verifier to the module.
/// @dev Could be only called by the owner. Will revert if the verifier is already added.
function addVerifier(address verifier) external onlyOwner {
_addVerifier(verifier);
}
/// @notice Adds a list of new verifiers to the module.
/// @dev Could be only called by the owner. Will revert if any of the verifiers is already added.
function addVerifiers(address[] calldata verifiers) external onlyOwner {
uint256 length = verifiers.length;
for (uint256 i = 0; i < length; ++i) {
_addVerifier(verifiers[i]);
}
}
/// @notice Removes a verifier from the module.
/// @dev Could be only called by the owner. Will revert if the verifier is not added.
function removeVerifier(address verifier) external onlyOwner {
_removeVerifier(verifier);
}
/// @notice Removes a list of verifiers from the module.
/// @dev Could be only called by the owner. Will revert if any of the verifiers is not added.
function removeVerifiers(address[] calldata verifiers) external onlyOwner {
uint256 length = verifiers.length;
for (uint256 i = 0; i < length; ++i) {
_removeVerifier(verifiers[i]);
}
}
/// @notice Sets the threshold of the module.
/// @dev Could be only called by the owner. Will revert if the threshold is zero.
function setThreshold(uint256 threshold) external onlyOwner {
_verifiers.modifyThreshold(threshold);
emit ThresholdSet(threshold);
}
/// @notice Sets the address of the fee collector, which will have the verification fees forwarded to it.
/// @dev Could be only called by the owner.
function setFeeRecipient(address feeRecipient) external onlyOwner {
if (feeRecipient == address(0)) {
revert CortexModule__FeeRecipientZeroAddress();
}
_feeRecipient = feeRecipient;
emit FeeRecipientSet(feeRecipient);
}
/// @notice Sets the fraction of the accumulated fees to be paid to caller of `claimFees`.
/// This encourages rational actors to call the function as soon as claim fee is higher than the gas cost.
/// @dev Could be only called by the owner. Could not exceed 1% (1e16).
function setClaimerFraction(uint256 claimerFraction) external onlyOwner {
if (claimerFraction > MAX_CLAIMER_FRACTION) {
revert ClaimableFees__ClaimerFractionAboveMax(claimerFraction, MAX_CLAIMER_FRACTION);
}
_claimerFraction = claimerFraction;
emit ClaimerFractionSet(claimerFraction);
}
/// @notice Sets the address of the gas oracle to be used for estimating the verification fees.
/// @dev Could be only called by the owner. Will revert if the gas oracle is not a contract.
function setGasOracle(address gasOracle_) external onlyOwner {
if (gasOracle_.code.length == 0) {
revert CortexModule__GasOracleNotContract(gasOracle_);
}
gasOracle = gasOracle_;
emit GasOracleSet(gasOracle_);
}
/// @notice Sets the estimated gas limit for verifying an entry on the given chain.
/// @dev Could be only called by the owner.
/// @param chainId The chain ID for which to set the gas limit
/// @param gasLimit The new gas limit for the verification on the specified chain
function setVerifyGasLimit(uint64 chainId, uint256 gasLimit) external onlyOwner {
_verifyGasLimit[chainId] = gasLimit;
emit VerifyGasLimitSet(chainId, gasLimit);
}
// ══════════════════════════════════════════════ PERMISSIONLESS ═══════════════════════════════════════════════════
/// @notice Verifies an entry from the remote chain using a set of verifier signatures.
/// If the threshold is met, the entry will be marked as verified in the Interchain DataBase.
/// @dev List of recovered signers from the signatures must be sorted in the ascending order.
/// @param encodedEntry The encoded entry to verify
/// @param signatures Signatures used to verify the entry, concatenated
function verifyRemoteEntry(bytes calldata encodedEntry, bytes calldata signatures) external {
bytes32 ethSignedHash = MessageHashUtils.toEthSignedMessageHash(keccak256(encodedEntry));
_verifiers.verifySignedHash(ethSignedHash, signatures);
(bytes memory versionedEntry, bytes memory data) = ModuleEntryLib.decodeVersionedModuleEntry(encodedEntry);
InterchainEntry memory entry = InterchainEntryLib.decodeEntryFromMemory(versionedEntry.getPayloadFromMemory());
if (entry.srcChainId == block.chainid) {
revert InterchainModule__ChainIdNotRemote(entry.srcChainId);
}
_verifyRemoteEntry(versionedEntry);
emit EntryVerified(entry.srcChainId, encodedEntry, ethSignedHash);
_receiveModuleData(entry.srcChainId, entry.dbNonce, data);
}
// ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════
/// @notice Returns the list of verifiers for the module.
function getVerifiers() external view returns (address[] memory) {
return _verifiers.getSigners();
}
/// @notice Checks if the given account is a verifier for the module.
function isVerifier(address account) external view returns (bool) {
return _verifiers.isSigner(account);
}
/// @notice Gets the threshold of the module. This is the minimum number of signatures required for verification.
function getThreshold() public view returns (uint256) {
return _verifiers.getThreshold();
}
/// @notice Returns the estimated gas limit for verifying an entry on the given chain.
/// Note: this defaults to DEFAULT_VERIFY_GAS_LIMIT if not set.
function getVerifyGasLimit(uint64 chainId) public view override returns (uint256 gasLimit) {
gasLimit = _verifyGasLimit[chainId];
if (gasLimit == 0) {
gasLimit = DEFAULT_VERIFY_GAS_LIMIT;
}
}
/// @notice Returns the amount of fees that can be claimed.
function getClaimableAmount() public view override returns (uint256) {
return address(this).balance;
}
/// @notice Returns the fraction of the fees that the claimer will receive.
/// The result is in the range [0, 1e18], where 1e18 is 100%.
function getClaimerFraction() public view override returns (uint256) {
return _claimerFraction;
}
/// @notice Returns the address that will receive the claimed fees.
function getFeeRecipient() public view override returns (address) {
return _feeRecipient;
}
// ══════════════════════════════════════════════ INTERNAL LOGIC ═══════════════════════════════════════════════════
/// @dev Adds a verifier to the module. Permissions should be checked in the calling function.
function _addVerifier(address verifier) internal {
_verifiers.addSigner(verifier);
emit VerifierAdded(verifier);
}
/// @dev Removes a verifier from the module. Permissions should be checked in the calling function.
function _removeVerifier(address verifier) internal {
_verifiers.removeSigner(verifier);
emit VerifierRemoved(verifier);
}
/// @dev Hook that is called before the fees are claimed.
/// Useful if the inheriting contract needs to manage the state when the fees are claimed.
// solhint-disable-next-line no-empty-blocks
function _beforeFeesClaimed(uint256, uint256) internal override {
// No op, as the claimable amount is tracked as the contract balance
}
/// @dev Internal logic to request the verification of an entry on the destination chain.
/// Following checks have been done at this point:
/// - Entry is a valid versioned entry coming from the Interchain DataBase.
/// - Enough fees have been paid for the verification.
///
/// Derived contracts should implement the logic to relay the entry to the destination chain:
/// the destination module counterpart should call `db.verifyRemoteEntry(versionedEntry)`.
function _relayDBEntry(uint64 dstChainId, bytes memory versionedEntry) internal override {
bytes memory moduleData = _fillModuleData(dstChainId);
bytes memory encodedEntry = ModuleEntryLib.encodeVersionedModuleEntry(versionedEntry, moduleData);
bytes32 ethSignedEntryHash = MessageHashUtils.toEthSignedMessageHash(keccak256(encodedEntry));
emit EntryVerificationRequested(dstChainId, encodedEntry, ethSignedEntryHash);
}
/// @dev Internal logic to fill the module data for the specified destination chain.
function _fillModuleData(uint64 dstChainId) internal returns (bytes memory moduleData) {
moduleData = _getCortexGasOracle().getLocalGasData();
// Exit early if data is empty
if (moduleData.length == 0) {
return moduleData;
}
bytes32 dataHash = keccak256(moduleData);
// Don't send the same data twice
if (dataHash == _lastGasDataHash[dstChainId]) {
moduleData = "";
} else {
_lastGasDataHash[dstChainId] = dataHash;
emit GasDataSent(dstChainId, moduleData);
}
}
/// @dev Internal logic to handle the auxiliary module data relayed from the remote chain.
function _receiveModuleData(uint64 srcChainId, uint64 dbNonce, bytes memory moduleData) internal {
// Exit early if data is empty
if (moduleData.length == 0) {
return;
}
// Don't process outdated data
uint64 lastNonce = _lastGasDataNonce[srcChainId];
if (lastNonce == 0 || lastNonce < dbNonce) {
_lastGasDataNonce[srcChainId] = dbNonce;
_getCortexGasOracle().receiveRemoteGasData(srcChainId, moduleData);
emit GasDataReceived(srcChainId, moduleData);
}
}
// ══════════════════════════════════════════════ INTERNAL VIEWS ═══════════════════════════════════════════════════
/// @dev Internal logic to get the module fee for verifying an entry on the specified destination chain.
function _getModuleFee(uint64 dstChainId) internal view override returns (uint256) {
// On the remote chain the verifyRemoteEntry(entry, signatures) function will be called.
// We need to figure out the calldata size for the remote call.
// selector (4 bytes) + entry + signatures
// entry is 32 (length) + 32*3 (fields) = 128
// signatures: 32 (length) + 65*threshold (padded up to be a multiple of 32 bytes)
// Total formula is: 4 + 32 (entry offset) + 32 (signatures offset) + 128 + 32
return _getCortexGasOracle().estimateTxCostInLocalUnits({
remoteChainId: dstChainId,
gasLimit: getVerifyGasLimit(dstChainId),
calldataSize: 260 + 64 * getThreshold()
});
}
/// @dev Internal logic to get the Cortex Gas Oracle. Reverts if the gas oracle is not set.
function _getCortexGasOracle() internal view returns (ICortexGasOracle cortexGasOracle) {
cortexGasOracle = ICortexGasOracle(gasOracle);
if (address(cortexGasOracle) == address(0)) {
revert CortexModule__GasOracleZeroAddress();
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IInterchainDB} from "../interfaces/IInterchainDB.sol";
import {IInterchainModule} from "../interfaces/IInterchainModule.sol";
/// @notice Common logic for all Interchain Modules.
abstract contract InterchainModule is IInterchainModule {
/// @notice The address of the Interchain DataBase contract: used for verifying the entries.
address public immutable INTERCHAIN_DB;
constructor(address interchainDB) {
INTERCHAIN_DB = interchainDB;
}
/// @notice Request the verification of an entry from the Interchain DataBase by the module.
/// Note: a fee is paid to the module for verification, and could be retrieved by using `getModuleFee`.
/// Note: this will eventually trigger `InterchainDB.verifyRemoteEntry(entry)` function on destination chain,
/// with no guarantee of ordering.
/// @dev Could be only called by the Interchain DataBase contract.
/// @param dstChainId The chain id of the destination chain
/// @param versionedEntry The versioned entry to verify
function requestEntryVerification(uint64 dstChainId, bytes memory versionedEntry) external payable {
if (msg.sender != INTERCHAIN_DB) {
revert InterchainModule__CallerNotInterchainDB(msg.sender);
}
if (dstChainId == block.chainid) {
revert InterchainModule__ChainIdNotRemote(dstChainId);
}
uint256 requiredFee = _getModuleFee(dstChainId);
if (msg.value < requiredFee) {
revert InterchainModule__FeeAmountBelowMin({feeAmount: msg.value, minRequired: requiredFee});
}
// Note: we don't emit an event here, the derived contract could emit an event if needed.
_relayDBEntry(dstChainId, versionedEntry);
}
/// @notice Get the Module fee for verifying an entry on the specified destination chain.
/// @param dstChainId The chain id of the destination chain
function getModuleFee(uint64 dstChainId) external view returns (uint256) {
return _getModuleFee(dstChainId);
}
/// @dev Should be called once the Module has verified the entry and needs to signal this
/// to the InterchainDB.
function _verifyRemoteEntry(bytes memory versionedEntry) internal {
IInterchainDB(INTERCHAIN_DB).verifyRemoteEntry(versionedEntry);
}
// solhint-disable no-empty-blocks
/// @dev Internal logic to relay a DB entry to the destination chain.
/// Following checks have been done at this point:
/// - Entry is a valid versioned entry coming from the Interchain DataBase.
/// - Enough fees have been paid for the verification.
///
/// Derived contracts should implement the logic so that eventually the destination counterpart
/// of this module calls `_verifyRemoteEntry(versionedEntry)`.
function _relayDBEntry(uint64 dstChainId, bytes memory versionedEntry) internal virtual;
/// @dev Internal logic to get the module fee for verifying an entry on the specified destination chain.
function _getModuleFee(uint64 dstChainId) internal view virtual returns (uint256);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {InterchainModuleEvents} from "./InterchainModuleEvents.sol";
abstract contract CortexModuleEvents is InterchainModuleEvents {
/// @notice Emitted when a verifier is added. The verifier signatures are required to verify an entry.
/// @param verifier The address of the verifier.
event VerifierAdded(address verifier);
/// Emitted when a verifier is removed.
/// @param verifier The address of the verifier.
event VerifierRemoved(address verifier);
/// @notice Emitted when a threshold is set.
/// The threshold is the minimum number of verifiers required to verify an entry.
/// @param threshold The threshold value.
event ThresholdSet(uint256 threshold);
/// @notice Emitted when a gas oracle is set. The gas oracle will be used to estimate the gas cost of
/// verifying an entry on the remote chain.
/// @param gasOracle The address of the gas oracle.
event GasOracleSet(address gasOracle);
/// @notice Emitted when the gas limit estimate is set for a chain.
/// @param chainId The chain ID of the chain.
/// @param gasLimit The gas limit estimate for verifying an entry on the chain.
event VerifyGasLimitSet(uint64 chainId, uint256 gasLimit);
/// @notice Emitted when the gas data from the gas oracle is sent to the remote chain.
/// @param dstChainId The chain ID of the destination chain.
/// @param data The encoded gas data.
event GasDataSent(uint64 dstChainId, bytes data);
/// @notice Emitted when the gas data from the remote chain is received.
/// @param srcChainId The chain ID of the source chain.
/// @param data The encoded gas data.
event GasDataReceived(uint64 srcChainId, bytes data);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IGasOracle} from "./IGasOracle.sol";
interface ICortexGasOracle is IGasOracle {
function receiveRemoteGasData(uint64 srcChainId, bytes calldata data) external;
// ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════
function getLocalGasData() external view returns (bytes memory);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IInterchainModule} from "./IInterchainModule.sol";
interface ICortexModule is IInterchainModule {
error CortexModule__GasOracleNotContract(address gasOracle);
error CortexModule__GasOracleZeroAddress();
error CortexModule__FeeRecipientZeroAddress();
function addVerifier(address verifier) external;
function addVerifiers(address[] calldata verifiers) external;
function removeVerifier(address verifier) external;
function removeVerifiers(address[] calldata verifiers) external;
function setThreshold(uint256 threshold) external;
function setFeeRecipient(address feeRecipient) external;
function setClaimerFraction(uint256 claimerFraction) external;
function setGasOracle(address gasOracle_) external;
function setVerifyGasLimit(uint64 chainId, uint256 gasLimit) external;
function verifyRemoteEntry(bytes calldata encodedEntry, bytes calldata signatures) external;
// ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════
function gasOracle() external view returns (address);
function getVerifiers() external view returns (address[] memory);
function getThreshold() external view returns (uint256);
function isVerifier(address account) external view returns (bool);
function getVerifyGasLimit(uint64 chainId) external view returns (uint256);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
/// @notice Struct representing an entry in the Interchain DataBase.
/// Entry has a globally unique identifier (key) and a value.
/// Assuming `srcWriter` has written data `digest` on the source chain:
/// - key: (srcChainId, dbNonce)
/// - entryValue = keccak256(srcWriter, digest)
/// @param srcChainId The chain id of the source chain
/// @param dbNonce The database nonce of the entry
/// @param entryValue The entry value
struct InterchainEntry {
uint64 srcChainId;
uint64 dbNonce;
bytes32 entryValue;
}
type EntryKey is uint128;
/// @dev Signals that the module has not verified any entry with the given key.
uint256 constant ENTRY_UNVERIFIED = 0;
/// @dev Signals that the module has verified a conflicting entry with the given key.
uint256 constant ENTRY_CONFLICT = type(uint256).max;
library InterchainEntryLib {
/// @notice Constructs an InterchainEntry struct to be written on the local chain
/// @param dbNonce The database nonce of the entry on the source chain
/// @param entryValue The value of the entry
/// @return entry The constructed InterchainEntry struct
function constructLocalEntry(
uint64 dbNonce,
bytes32 entryValue
)
internal
view
returns (InterchainEntry memory entry)
{
uint64 srcChainId = SafeCast.toUint64(block.chainid);
return InterchainEntry({srcChainId: srcChainId, dbNonce: dbNonce, entryValue: entryValue});
}
/// @notice Returns the value of the entry: writer + digest hashed together
function getEntryValue(bytes32 srcWriter, bytes32 digest) internal pure returns (bytes32) {
return keccak256(abi.encode(srcWriter, digest));
}
/// @notice Returns the value of the entry: writer + digest hashed together.
/// Note: this is exposed for convenience to avoid typecasts prior to abi-encoding.
function getEntryValue(address srcWriter, bytes32 digest) internal pure returns (bytes32) {
return keccak256(abi.encode(srcWriter, digest));
}
/// @notice Encodes the InterchainEntry struct into a non-versioned entry payload.
function encodeEntry(InterchainEntry memory entry) internal pure returns (bytes memory) {
return abi.encode(encodeEntryKey(entry.srcChainId, entry.dbNonce), entry.entryValue);
}
/// @notice Decodes the InterchainEntry struct from a non-versioned entry payload in calldata.
function decodeEntry(bytes calldata data) internal pure returns (InterchainEntry memory entry) {
EntryKey key;
(key, entry.entryValue) = abi.decode(data, (EntryKey, bytes32));
(entry.srcChainId, entry.dbNonce) = decodeEntryKey(key);
}
/// @notice Decodes the InterchainEntry struct from a non-versioned entry payload in memory.
function decodeEntryFromMemory(bytes memory data) internal pure returns (InterchainEntry memory entry) {
EntryKey key;
(key, entry.entryValue) = abi.decode(data, (EntryKey, bytes32));
(entry.srcChainId, entry.dbNonce) = decodeEntryKey(key);
}
/// @notice Encodes the uint128 key of the entry from uint64 srcChainId and uint64 dbNonce.
function encodeEntryKey(uint64 srcChainId, uint64 dbNonce) internal pure returns (EntryKey) {
return EntryKey.wrap((uint128(srcChainId) << 64) | dbNonce);
}
/// @notice Decodes the uint128 key of the entry into uint64 srcChainId and uint64 dbNonce.
function decodeEntryKey(EntryKey key) internal pure returns (uint64 srcChainId, uint64 dbNonce) {
srcChainId = uint64(EntryKey.unwrap(key) >> 64);
dbNonce = uint64(EntryKey.unwrap(key));
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
library ModuleEntryLib {
/// @notice Encodes the versioned entry and the auxiliary module data into a single bytes array
/// @param versionedEntry The versioned entry to encode
/// @param moduleData The auxiliary module data to encode
/// @return encodedModuleEntry The encoded versioned module entry
function encodeVersionedModuleEntry(
bytes memory versionedEntry,
bytes memory moduleData
)
internal
pure
returns (bytes memory encodedModuleEntry)
{
return abi.encode(versionedEntry, moduleData);
}
/// @notice Decodes the bytes array into the versioned entry and the auxiliary module data
/// @param encodedModuleEntry The bytes array to decode
/// @return versionedEntry The decoded versioned entry
/// @return moduleData The decoded auxiliary module data
function decodeVersionedModuleEntry(bytes memory encodedModuleEntry)
internal
pure
returns (bytes memory versionedEntry, bytes memory moduleData)
{
return abi.decode(encodedModuleEntry, (bytes, bytes));
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
struct ThresholdECDSA {
uint256 _threshold;
EnumerableSet.AddressSet _signers;
}
using ThresholdECDSALib for ThresholdECDSA global;
// solhint-disable code-complexity
library ThresholdECDSALib {
using EnumerableSet for EnumerableSet.AddressSet;
uint256 private constant SIGNATURE_LENGTH = 65;
error ThresholdECDSA__RecoveredSignersNotSorted();
error ThresholdECDSA__SignaturesAmountBelowThreshold(uint256 signaturesAmount, uint256 threshold);
error ThresholdECDSA__SignaturesPayloadLengthInvalid(uint256 length);
error ThresholdECDSA__SignerAlreadyAdded(address account);
error ThresholdECDSA__SignerNotAdded(address account);
error ThresholdECDSA__SignerRecoveryFailed(bytes signature);
error ThresholdECDSA__SignerZeroAddress();
error ThresholdECDSA__ThresholdZero();
/// @notice Adds a new signer to the list of signers.
/// @dev Will revert if the account is already a signer.
function addSigner(ThresholdECDSA storage self, address account) internal {
if (account == address(0)) revert ThresholdECDSA__SignerZeroAddress();
bool added = self._signers.add(account);
if (!added) {
revert ThresholdECDSA__SignerAlreadyAdded(account);
}
}
/// @notice Removes a signer from the list of signers.
/// @dev Will revert if the account is not a signer.
function removeSigner(ThresholdECDSA storage self, address account) internal {
bool removed = self._signers.remove(account);
if (!removed) {
revert ThresholdECDSA__SignerNotAdded(account);
}
}
/// @notice Modifies the threshold of signatures required.
function modifyThreshold(ThresholdECDSA storage self, uint256 threshold) internal {
if (threshold == 0) {
revert ThresholdECDSA__ThresholdZero();
}
self._threshold = threshold;
}
/// @notice Checks if the account is a signer.
function isSigner(ThresholdECDSA storage self, address account) internal view returns (bool) {
return self._signers.contains(account);
}
/// @notice Gets the full list of signers.
function getSigners(ThresholdECDSA storage self) internal view returns (address[] memory) {
return self._signers.values();
}
/// @notice Gets the threshold of signatures required.
function getThreshold(ThresholdECDSA storage self) internal view returns (uint256) {
return self._threshold;
}
/// @notice Verifies that the number of signatures is greater than or equal to the threshold.
/// Note: the list of signers recovered from the signatures is required to be sorted in ascending order.
/// @dev Will revert if either of the conditions is met:
/// - Threshold is not configured.
/// - Any of the payloads is not a valid signature payload.
/// - The number of signatures is less than the threshold.
/// - The recovered list of signers is not sorted in the ascending order.
function verifySignedHash(ThresholdECDSA storage self, bytes32 hash, bytes calldata signatures) internal view {
// Figure out the signaturesAmount of signatures provided
uint256 signaturesAmount = signatures.length / SIGNATURE_LENGTH;
if (signaturesAmount * SIGNATURE_LENGTH != signatures.length) {
revert ThresholdECDSA__SignaturesPayloadLengthInvalid(signatures.length);
}
// First, check that threshold is configured and enough signatures are provided
uint256 threshold = self._threshold;
if (threshold == 0) {
revert ThresholdECDSA__ThresholdZero();
}
uint256 offset = 0;
uint256 validSignatures = 0;
address lastSigner = address(0);
for (uint256 i = 0; i < signaturesAmount; ++i) {
bytes memory signature = signatures[offset:offset + SIGNATURE_LENGTH];
(address recovered, ECDSA.RecoverError error,) = ECDSA.tryRecover(hash, signature);
if (error != ECDSA.RecoverError.NoError) {
revert ThresholdECDSA__SignerRecoveryFailed(signature);
}
// Check that the recovered addresses list is strictly increasing
if (recovered <= lastSigner) {
revert ThresholdECDSA__RecoveredSignersNotSorted();
}
lastSigner = recovered;
// Since the signers list is sorted, every time we find a valid signer it's not a duplicate
if (isSigner(self, recovered)) {
validSignatures += 1;
}
offset += SIGNATURE_LENGTH;
}
if (validSignatures < threshold) {
revert ThresholdECDSA__SignaturesAmountBelowThreshold(validSignatures, threshold);
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
// solhint-disable no-inline-assembly
// solhint-disable ordering
library VersionedPayloadLib {
/// @notice Amount of bytes reserved for the version (uint16) in the versioned payload
uint256 internal constant VERSION_LENGTH = 2;
error VersionedPayload__PayloadTooShort(bytes versionedPayload);
error VersionedPayload__PrecompileFailed();
/// @notice Encodes the versioned payload into a single bytes array.
/// @param version The payload's version.
/// @param payload The payload to encode.
function encodeVersionedPayload(uint16 version, bytes memory payload) internal pure returns (bytes memory) {
return abi.encodePacked(version, payload);
}
/// @notice Extracts the version from the versioned payload (calldata reference).
/// @param versionedPayload The versioned payload (calldata reference).
function getVersion(bytes calldata versionedPayload) internal pure returns (uint16 version) {
if (versionedPayload.length < VERSION_LENGTH) {
revert VersionedPayload__PayloadTooShort(versionedPayload);
}
assembly {
// We are only interested in the highest 16 bits of the loaded full 32 bytes word.
version := shr(240, calldataload(versionedPayload.offset))
}
}
/// @notice Extracts the payload from the versioned payload (calldata reference).
/// @dev The extracted payload is also returned as a calldata reference.
/// @param versionedPayload The versioned payload.
function getPayload(bytes calldata versionedPayload) internal pure returns (bytes calldata) {
if (versionedPayload.length < VERSION_LENGTH) {
revert VersionedPayload__PayloadTooShort(versionedPayload);
}
return versionedPayload[VERSION_LENGTH:];
}
/// @notice Extracts the version from the versioned payload (memory reference).
/// @param versionedPayload The versioned payload (memory reference).
function getVersionFromMemory(bytes memory versionedPayload) internal pure returns (uint16 version) {
if (versionedPayload.length < VERSION_LENGTH) {
revert VersionedPayload__PayloadTooShort(versionedPayload);
}
assembly {
// We are only interested in the highest 16 bits of the loaded full 32 bytes word.
// We add 0x20 to skip the length of the bytes array.
version := shr(240, mload(add(versionedPayload, 0x20)))
}
}
/// @notice Extracts the payload from the versioned payload (memory reference).
/// @dev The extracted payload is copied into a new memory location. Use `getPayload` when possible
/// to avoid extra memory allocation.
/// @param versionedPayload The versioned payload (memory reference).
function getPayloadFromMemory(bytes memory versionedPayload) internal view returns (bytes memory payload) {
if (versionedPayload.length < VERSION_LENGTH) {
revert VersionedPayload__PayloadTooShort(versionedPayload);
}
// Figure how many bytes to copy and allocate the memory for the extracted payload.
uint256 toCopy;
unchecked {
toCopy = versionedPayload.length - VERSION_LENGTH;
}
payload = new bytes(toCopy);
// Use identity precompile (0x04) to copy the payload. Unlike MCOPY, this is available on all EVM chains.
bool res;
assembly {
// We add 0x20 to skip the length of the bytes array.
// We add 0x02 to skip the 2 bytes reserved for the version.
// Copy the payload to the previously allocated memory.
res := staticcall(gas(), 0x04, add(versionedPayload, 0x22), toCopy, add(payload, 0x20), toCopy)
}
if (!res) {
revert VersionedPayload__PrecompileFailed();
}
}
}// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import {ClaimableFeesEvents} from "../events/ClaimableFeesEvents.sol";
import {IClaimableFees} from "../interfaces/IClaimableFees.sol";
import {Address} from "@openzeppelin/contracts/utils/Address.sol";
/// @notice A simple abstraction for a contract that is collecting fees in native chain token.
/// The claim process could be performed by anyone, but the fees will be sent to
/// the predefined address. The claimer will receive a fraction of the fees to offset
/// the gas costs.
/// @dev The contract is implemented in a stateless way to allow the inheriting
/// contract to be immutable or upgradeable.
abstract contract ClaimableFees is ClaimableFeesEvents, IClaimableFees {
uint256 private constant FEE_PRECISION = 1e18;
/// @dev The maximum fraction that the claimer can receive is 1%.
uint256 internal constant MAX_CLAIMER_FRACTION = 1e16;
/// @notice Transfers the accumulated fees to the fee recipient.
/// Message caller receives a fraction of the fees as a reward to offset the gas costs.
/// The reward amount could be obtained by calling the `getClaimerReward` function beforehand.
/// @dev Will revert if the claimable amount is zero or the fee recipient is not set.
function claimFees() external {
uint256 amount = getClaimableAmount();
if (amount == 0) {
revert ClaimableFees__FeeAmountZero();
}
address recipient = getFeeRecipient();
if (recipient == address(0)) {
revert ClaimableFees__FeeRecipientZeroAddress();
}
// Subtract the claimer reward from the total amount
uint256 reward = _getClaimerReward(amount);
_beforeFeesClaimed(amount, reward);
// We can do unchecked subtraction because `getClaimerReward` ensures that `reward <= amount * 0.01`
unchecked {
amount -= reward;
}
// Emit the event before transferring the fees
emit FeesClaimed(recipient, amount, msg.sender, reward);
Address.sendValue(payable(recipient), amount);
Address.sendValue(payable(msg.sender), reward);
}
/// @notice Returns the amount of native chain token that the claimer will receive
/// after calling the `claimFees` function.
function getClaimerReward() external view returns (uint256) {
uint256 amount = getClaimableAmount();
return _getClaimerReward(amount);
}
/// @notice Returns the amount of fees that can be claimed.
function getClaimableAmount() public view virtual returns (uint256);
/// @notice Returns the fraction of the fees that the claimer will receive.
/// The result is in the range [0, 1e18], where 1e18 is 100%.
function getClaimerFraction() public view virtual returns (uint256);
/// @notice Returns the address that will receive the claimed fees.
function getFeeRecipient() public view virtual returns (address);
/// @dev Hook that is called before the fees are claimed.
/// Useful if the inheriting contract needs to manage the state when the fees are claimed.
function _beforeFeesClaimed(uint256 fullAmount, uint256 reward) internal virtual;
/// @dev Returns the claimer reward for the given amount.
function _getClaimerReward(uint256 amount) internal view returns (uint256) {
uint256 fraction = getClaimerFraction();
if (fraction > MAX_CLAIMER_FRACTION) {
revert ClaimableFees__ClaimerFractionAboveMax(fraction, MAX_CLAIMER_FRACTION);
}
// The returned value is in the range [0, amount * 0.01]
return (amount * fraction) / FEE_PRECISION;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {Context} from "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol)
pragma solidity ^0.8.20;
import {Strings} from "../Strings.sol";
/**
* @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.
*
* The library provides methods for generating a hash of a message that conforms to the
* https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]
* specifications.
*/
library MessageHashUtils {
/**
* @dev Returns the keccak256 digest of an EIP-191 signed data with version
* `0x45` (`personal_sign` messages).
*
* The digest is calculated by prefixing a bytes32 `messageHash` with
* `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the
* hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
*
* NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with
* keccak256, although any bytes32 value can be safely used because the final digest will
* be re-hashed.
*
* See {ECDSA-recover}.
*/
function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash
mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix
digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20)
}
}
/**
* @dev Returns the keccak256 digest of an EIP-191 signed data with version
* `0x45` (`personal_sign` messages).
*
* The digest is calculated by prefixing an arbitrary `message` with
* `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the
* hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
*
* See {ECDSA-recover}.
*/
function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) {
return
keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message));
}
/**
* @dev Returns the keccak256 digest of an EIP-191 signed data with version
* `0x00` (data with intended validator).
*
* The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended
* `validator` address. Then hashing the result.
*
* See {ECDSA-recover}.
*/
function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
return keccak256(abi.encodePacked(hex"19_00", validator, data));
}
/**
* @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`).
*
* The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with
* `\x19\x01` and hashing the result. It corresponds to the hash signed by the
* https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.
*
* See {ECDSA-recover}.
*/
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) {
/// @solidity memory-safe-assembly
assembly {
let ptr := mload(0x40)
mstore(ptr, hex"19_01")
mstore(add(ptr, 0x02), domainSeparator)
mstore(add(ptr, 0x22), structHash)
digest := keccak256(ptr, 0x42)
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {InterchainEntry} from "../libs/InterchainEntry.sol";
interface IInterchainDB {
error InterchainDB__ChainIdNotRemote(uint64 chainId);
error InterchainDB__EntryConflict(address module, InterchainEntry newEntry);
error InterchainDB__EntryVersionMismatch(uint16 version, uint16 required);
error InterchainDB__FeeAmountBelowMin(uint256 feeAmount, uint256 minRequired);
error InterchainDB__ModulesNotProvided();
function writeEntry(bytes32 digest) external returns (uint64 dbNonce);
function requestEntryVerification(
uint64 dstChainId,
uint64 dbNonce,
address[] memory srcModules
)
external
payable;
function writeEntryRequestVerification(
uint64 dstChainId,
bytes32 digest,
address[] memory srcModules
)
external
payable
returns (uint64 dbNonce);
function verifyRemoteEntry(bytes memory encodedEntry) external;
// ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════
function getInterchainFee(uint64 dstChainId, address[] memory srcModules) external view returns (uint256);
function getEncodedEntry(uint64 dbNonce) external view returns (bytes memory);
function getEntry(uint64 dbNonce) external view returns (InterchainEntry memory);
function getEntryValue(uint64 dbNonce) external view returns (bytes32);
function getDBNonce() external view returns (uint64);
function checkEntryVerification(
address dstModule,
InterchainEntry memory entry
)
external
view
returns (uint256 moduleVerifiedAt);
// solhint-disable-next-line func-name-mixedcase
function DB_VERSION() external pure returns (uint16);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @notice Every Module may opt a different method to confirm the verified entries on destination chain,
/// therefore this is not a part of a common interface.
interface IInterchainModule {
error InterchainModule__CallerNotInterchainDB(address caller);
error InterchainModule__ChainIdNotRemote(uint64 chainId);
error InterchainModule__FeeAmountBelowMin(uint256 feeAmount, uint256 minRequired);
function requestEntryVerification(uint64 dstChainId, bytes memory versionedEntry) external payable;
// ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════
function getModuleFee(uint64 dstChainId) external view returns (uint256);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
abstract contract InterchainModuleEvents {
/// @notice Emitted when an entry verification on a remote chain is requested.
/// @param dstChainId The chain ID of the destination chain.
/// @param entry The encoded entry to be verified.
/// @param ethSignedEntryHash The digest of the entry (EIP-191 personal signed).
event EntryVerificationRequested(uint64 indexed dstChainId, bytes entry, bytes32 ethSignedEntryHash);
/// @notice Emitted when an entry from the remote chain is verified.
/// @param srcChainId The chain ID of the source chain.
/// @param entry The encoded entry that was verified.
/// @param ethSignedEntryHash The digest of the entry (EIP-191 personal signed).
event EntryVerified(uint64 indexed srcChainId, bytes entry, bytes32 ethSignedEntryHash);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IGasOracle {
// ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════
function convertRemoteValueToLocalUnits(uint64 remoteChainId, uint256 value) external view returns (uint256);
function estimateTxCostInLocalUnits(
uint64 remoteChainId,
uint256 gasLimit,
uint256 calldataSize
)
external
view
returns (uint256);
function estimateTxCostInRemoteUnits(
uint64 remoteChainId,
uint256 gasLimit,
uint256 calldataSize
)
external
view
returns (uint256);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.
pragma solidity ^0.8.20;
/**
* @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
* checks.
*
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
* easily result in undesired exploitation or bugs, since developers usually
* assume that overflows raise errors. `SafeCast` restores this intuition by
* reverting the transaction when such an operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeCast {
/**
* @dev Value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);
/**
* @dev An int value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedIntToUint(int256 value);
/**
* @dev Value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);
/**
* @dev An uint value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedUintToInt(uint256 value);
/**
* @dev Returns the downcasted uint248 from uint256, reverting on
* overflow (when the input is greater than largest uint248).
*
* Counterpart to Solidity's `uint248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toUint248(uint256 value) internal pure returns (uint248) {
if (value > type(uint248).max) {
revert SafeCastOverflowedUintDowncast(248, value);
}
return uint248(value);
}
/**
* @dev Returns the downcasted uint240 from uint256, reverting on
* overflow (when the input is greater than largest uint240).
*
* Counterpart to Solidity's `uint240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toUint240(uint256 value) internal pure returns (uint240) {
if (value > type(uint240).max) {
revert SafeCastOverflowedUintDowncast(240, value);
}
return uint240(value);
}
/**
* @dev Returns the downcasted uint232 from uint256, reverting on
* overflow (when the input is greater than largest uint232).
*
* Counterpart to Solidity's `uint232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toUint232(uint256 value) internal pure returns (uint232) {
if (value > type(uint232).max) {
revert SafeCastOverflowedUintDowncast(232, value);
}
return uint232(value);
}
/**
* @dev Returns the downcasted uint224 from uint256, reverting on
* overflow (when the input is greater than largest uint224).
*
* Counterpart to Solidity's `uint224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toUint224(uint256 value) internal pure returns (uint224) {
if (value > type(uint224).max) {
revert SafeCastOverflowedUintDowncast(224, value);
}
return uint224(value);
}
/**
* @dev Returns the downcasted uint216 from uint256, reverting on
* overflow (when the input is greater than largest uint216).
*
* Counterpart to Solidity's `uint216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toUint216(uint256 value) internal pure returns (uint216) {
if (value > type(uint216).max) {
revert SafeCastOverflowedUintDowncast(216, value);
}
return uint216(value);
}
/**
* @dev Returns the downcasted uint208 from uint256, reverting on
* overflow (when the input is greater than largest uint208).
*
* Counterpart to Solidity's `uint208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toUint208(uint256 value) internal pure returns (uint208) {
if (value > type(uint208).max) {
revert SafeCastOverflowedUintDowncast(208, value);
}
return uint208(value);
}
/**
* @dev Returns the downcasted uint200 from uint256, reverting on
* overflow (when the input is greater than largest uint200).
*
* Counterpart to Solidity's `uint200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toUint200(uint256 value) internal pure returns (uint200) {
if (value > type(uint200).max) {
revert SafeCastOverflowedUintDowncast(200, value);
}
return uint200(value);
}
/**
* @dev Returns the downcasted uint192 from uint256, reverting on
* overflow (when the input is greater than largest uint192).
*
* Counterpart to Solidity's `uint192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toUint192(uint256 value) internal pure returns (uint192) {
if (value > type(uint192).max) {
revert SafeCastOverflowedUintDowncast(192, value);
}
return uint192(value);
}
/**
* @dev Returns the downcasted uint184 from uint256, reverting on
* overflow (when the input is greater than largest uint184).
*
* Counterpart to Solidity's `uint184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toUint184(uint256 value) internal pure returns (uint184) {
if (value > type(uint184).max) {
revert SafeCastOverflowedUintDowncast(184, value);
}
return uint184(value);
}
/**
* @dev Returns the downcasted uint176 from uint256, reverting on
* overflow (when the input is greater than largest uint176).
*
* Counterpart to Solidity's `uint176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toUint176(uint256 value) internal pure returns (uint176) {
if (value > type(uint176).max) {
revert SafeCastOverflowedUintDowncast(176, value);
}
return uint176(value);
}
/**
* @dev Returns the downcasted uint168 from uint256, reverting on
* overflow (when the input is greater than largest uint168).
*
* Counterpart to Solidity's `uint168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toUint168(uint256 value) internal pure returns (uint168) {
if (value > type(uint168).max) {
revert SafeCastOverflowedUintDowncast(168, value);
}
return uint168(value);
}
/**
* @dev Returns the downcasted uint160 from uint256, reverting on
* overflow (when the input is greater than largest uint160).
*
* Counterpart to Solidity's `uint160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toUint160(uint256 value) internal pure returns (uint160) {
if (value > type(uint160).max) {
revert SafeCastOverflowedUintDowncast(160, value);
}
return uint160(value);
}
/**
* @dev Returns the downcasted uint152 from uint256, reverting on
* overflow (when the input is greater than largest uint152).
*
* Counterpart to Solidity's `uint152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toUint152(uint256 value) internal pure returns (uint152) {
if (value > type(uint152).max) {
revert SafeCastOverflowedUintDowncast(152, value);
}
return uint152(value);
}
/**
* @dev Returns the downcasted uint144 from uint256, reverting on
* overflow (when the input is greater than largest uint144).
*
* Counterpart to Solidity's `uint144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toUint144(uint256 value) internal pure returns (uint144) {
if (value > type(uint144).max) {
revert SafeCastOverflowedUintDowncast(144, value);
}
return uint144(value);
}
/**
* @dev Returns the downcasted uint136 from uint256, reverting on
* overflow (when the input is greater than largest uint136).
*
* Counterpart to Solidity's `uint136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toUint136(uint256 value) internal pure returns (uint136) {
if (value > type(uint136).max) {
revert SafeCastOverflowedUintDowncast(136, value);
}
return uint136(value);
}
/**
* @dev Returns the downcasted uint128 from uint256, reverting on
* overflow (when the input is greater than largest uint128).
*
* Counterpart to Solidity's `uint128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toUint128(uint256 value) internal pure returns (uint128) {
if (value > type(uint128).max) {
revert SafeCastOverflowedUintDowncast(128, value);
}
return uint128(value);
}
/**
* @dev Returns the downcasted uint120 from uint256, reverting on
* overflow (when the input is greater than largest uint120).
*
* Counterpart to Solidity's `uint120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toUint120(uint256 value) internal pure returns (uint120) {
if (value > type(uint120).max) {
revert SafeCastOverflowedUintDowncast(120, value);
}
return uint120(value);
}
/**
* @dev Returns the downcasted uint112 from uint256, reverting on
* overflow (when the input is greater than largest uint112).
*
* Counterpart to Solidity's `uint112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toUint112(uint256 value) internal pure returns (uint112) {
if (value > type(uint112).max) {
revert SafeCastOverflowedUintDowncast(112, value);
}
return uint112(value);
}
/**
* @dev Returns the downcasted uint104 from uint256, reverting on
* overflow (when the input is greater than largest uint104).
*
* Counterpart to Solidity's `uint104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toUint104(uint256 value) internal pure returns (uint104) {
if (value > type(uint104).max) {
revert SafeCastOverflowedUintDowncast(104, value);
}
return uint104(value);
}
/**
* @dev Returns the downcasted uint96 from uint256, reverting on
* overflow (when the input is greater than largest uint96).
*
* Counterpart to Solidity's `uint96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toUint96(uint256 value) internal pure returns (uint96) {
if (value > type(uint96).max) {
revert SafeCastOverflowedUintDowncast(96, value);
}
return uint96(value);
}
/**
* @dev Returns the downcasted uint88 from uint256, reverting on
* overflow (when the input is greater than largest uint88).
*
* Counterpart to Solidity's `uint88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toUint88(uint256 value) internal pure returns (uint88) {
if (value > type(uint88).max) {
revert SafeCastOverflowedUintDowncast(88, value);
}
return uint88(value);
}
/**
* @dev Returns the downcasted uint80 from uint256, reverting on
* overflow (when the input is greater than largest uint80).
*
* Counterpart to Solidity's `uint80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toUint80(uint256 value) internal pure returns (uint80) {
if (value > type(uint80).max) {
revert SafeCastOverflowedUintDowncast(80, value);
}
return uint80(value);
}
/**
* @dev Returns the downcasted uint72 from uint256, reverting on
* overflow (when the input is greater than largest uint72).
*
* Counterpart to Solidity's `uint72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toUint72(uint256 value) internal pure returns (uint72) {
if (value > type(uint72).max) {
revert SafeCastOverflowedUintDowncast(72, value);
}
return uint72(value);
}
/**
* @dev Returns the downcasted uint64 from uint256, reverting on
* overflow (when the input is greater than largest uint64).
*
* Counterpart to Solidity's `uint64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toUint64(uint256 value) internal pure returns (uint64) {
if (value > type(uint64).max) {
revert SafeCastOverflowedUintDowncast(64, value);
}
return uint64(value);
}
/**
* @dev Returns the downcasted uint56 from uint256, reverting on
* overflow (when the input is greater than largest uint56).
*
* Counterpart to Solidity's `uint56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toUint56(uint256 value) internal pure returns (uint56) {
if (value > type(uint56).max) {
revert SafeCastOverflowedUintDowncast(56, value);
}
return uint56(value);
}
/**
* @dev Returns the downcasted uint48 from uint256, reverting on
* overflow (when the input is greater than largest uint48).
*
* Counterpart to Solidity's `uint48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toUint48(uint256 value) internal pure returns (uint48) {
if (value > type(uint48).max) {
revert SafeCastOverflowedUintDowncast(48, value);
}
return uint48(value);
}
/**
* @dev Returns the downcasted uint40 from uint256, reverting on
* overflow (when the input is greater than largest uint40).
*
* Counterpart to Solidity's `uint40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toUint40(uint256 value) internal pure returns (uint40) {
if (value > type(uint40).max) {
revert SafeCastOverflowedUintDowncast(40, value);
}
return uint40(value);
}
/**
* @dev Returns the downcasted uint32 from uint256, reverting on
* overflow (when the input is greater than largest uint32).
*
* Counterpart to Solidity's `uint32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toUint32(uint256 value) internal pure returns (uint32) {
if (value > type(uint32).max) {
revert SafeCastOverflowedUintDowncast(32, value);
}
return uint32(value);
}
/**
* @dev Returns the downcasted uint24 from uint256, reverting on
* overflow (when the input is greater than largest uint24).
*
* Counterpart to Solidity's `uint24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toUint24(uint256 value) internal pure returns (uint24) {
if (value > type(uint24).max) {
revert SafeCastOverflowedUintDowncast(24, value);
}
return uint24(value);
}
/**
* @dev Returns the downcasted uint16 from uint256, reverting on
* overflow (when the input is greater than largest uint16).
*
* Counterpart to Solidity's `uint16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toUint16(uint256 value) internal pure returns (uint16) {
if (value > type(uint16).max) {
revert SafeCastOverflowedUintDowncast(16, value);
}
return uint16(value);
}
/**
* @dev Returns the downcasted uint8 from uint256, reverting on
* overflow (when the input is greater than largest uint8).
*
* Counterpart to Solidity's `uint8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toUint8(uint256 value) internal pure returns (uint8) {
if (value > type(uint8).max) {
revert SafeCastOverflowedUintDowncast(8, value);
}
return uint8(value);
}
/**
* @dev Converts a signed int256 into an unsigned uint256.
*
* Requirements:
*
* - input must be greater than or equal to 0.
*/
function toUint256(int256 value) internal pure returns (uint256) {
if (value < 0) {
revert SafeCastOverflowedIntToUint(value);
}
return uint256(value);
}
/**
* @dev Returns the downcasted int248 from int256, reverting on
* overflow (when the input is less than smallest int248 or
* greater than largest int248).
*
* Counterpart to Solidity's `int248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(248, value);
}
}
/**
* @dev Returns the downcasted int240 from int256, reverting on
* overflow (when the input is less than smallest int240 or
* greater than largest int240).
*
* Counterpart to Solidity's `int240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(240, value);
}
}
/**
* @dev Returns the downcasted int232 from int256, reverting on
* overflow (when the input is less than smallest int232 or
* greater than largest int232).
*
* Counterpart to Solidity's `int232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(232, value);
}
}
/**
* @dev Returns the downcasted int224 from int256, reverting on
* overflow (when the input is less than smallest int224 or
* greater than largest int224).
*
* Counterpart to Solidity's `int224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(224, value);
}
}
/**
* @dev Returns the downcasted int216 from int256, reverting on
* overflow (when the input is less than smallest int216 or
* greater than largest int216).
*
* Counterpart to Solidity's `int216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(216, value);
}
}
/**
* @dev Returns the downcasted int208 from int256, reverting on
* overflow (when the input is less than smallest int208 or
* greater than largest int208).
*
* Counterpart to Solidity's `int208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(208, value);
}
}
/**
* @dev Returns the downcasted int200 from int256, reverting on
* overflow (when the input is less than smallest int200 or
* greater than largest int200).
*
* Counterpart to Solidity's `int200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(200, value);
}
}
/**
* @dev Returns the downcasted int192 from int256, reverting on
* overflow (when the input is less than smallest int192 or
* greater than largest int192).
*
* Counterpart to Solidity's `int192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(192, value);
}
}
/**
* @dev Returns the downcasted int184 from int256, reverting on
* overflow (when the input is less than smallest int184 or
* greater than largest int184).
*
* Counterpart to Solidity's `int184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(184, value);
}
}
/**
* @dev Returns the downcasted int176 from int256, reverting on
* overflow (when the input is less than smallest int176 or
* greater than largest int176).
*
* Counterpart to Solidity's `int176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(176, value);
}
}
/**
* @dev Returns the downcasted int168 from int256, reverting on
* overflow (when the input is less than smallest int168 or
* greater than largest int168).
*
* Counterpart to Solidity's `int168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(168, value);
}
}
/**
* @dev Returns the downcasted int160 from int256, reverting on
* overflow (when the input is less than smallest int160 or
* greater than largest int160).
*
* Counterpart to Solidity's `int160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(160, value);
}
}
/**
* @dev Returns the downcasted int152 from int256, reverting on
* overflow (when the input is less than smallest int152 or
* greater than largest int152).
*
* Counterpart to Solidity's `int152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(152, value);
}
}
/**
* @dev Returns the downcasted int144 from int256, reverting on
* overflow (when the input is less than smallest int144 or
* greater than largest int144).
*
* Counterpart to Solidity's `int144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(144, value);
}
}
/**
* @dev Returns the downcasted int136 from int256, reverting on
* overflow (when the input is less than smallest int136 or
* greater than largest int136).
*
* Counterpart to Solidity's `int136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(136, value);
}
}
/**
* @dev Returns the downcasted int128 from int256, reverting on
* overflow (when the input is less than smallest int128 or
* greater than largest int128).
*
* Counterpart to Solidity's `int128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(128, value);
}
}
/**
* @dev Returns the downcasted int120 from int256, reverting on
* overflow (when the input is less than smallest int120 or
* greater than largest int120).
*
* Counterpart to Solidity's `int120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(120, value);
}
}
/**
* @dev Returns the downcasted int112 from int256, reverting on
* overflow (when the input is less than smallest int112 or
* greater than largest int112).
*
* Counterpart to Solidity's `int112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(112, value);
}
}
/**
* @dev Returns the downcasted int104 from int256, reverting on
* overflow (when the input is less than smallest int104 or
* greater than largest int104).
*
* Counterpart to Solidity's `int104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(104, value);
}
}
/**
* @dev Returns the downcasted int96 from int256, reverting on
* overflow (when the input is less than smallest int96 or
* greater than largest int96).
*
* Counterpart to Solidity's `int96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(96, value);
}
}
/**
* @dev Returns the downcasted int88 from int256, reverting on
* overflow (when the input is less than smallest int88 or
* greater than largest int88).
*
* Counterpart to Solidity's `int88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(88, value);
}
}
/**
* @dev Returns the downcasted int80 from int256, reverting on
* overflow (when the input is less than smallest int80 or
* greater than largest int80).
*
* Counterpart to Solidity's `int80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(80, value);
}
}
/**
* @dev Returns the downcasted int72 from int256, reverting on
* overflow (when the input is less than smallest int72 or
* greater than largest int72).
*
* Counterpart to Solidity's `int72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(72, value);
}
}
/**
* @dev Returns the downcasted int64 from int256, reverting on
* overflow (when the input is less than smallest int64 or
* greater than largest int64).
*
* Counterpart to Solidity's `int64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(64, value);
}
}
/**
* @dev Returns the downcasted int56 from int256, reverting on
* overflow (when the input is less than smallest int56 or
* greater than largest int56).
*
* Counterpart to Solidity's `int56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(56, value);
}
}
/**
* @dev Returns the downcasted int48 from int256, reverting on
* overflow (when the input is less than smallest int48 or
* greater than largest int48).
*
* Counterpart to Solidity's `int48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(48, value);
}
}
/**
* @dev Returns the downcasted int40 from int256, reverting on
* overflow (when the input is less than smallest int40 or
* greater than largest int40).
*
* Counterpart to Solidity's `int40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(40, value);
}
}
/**
* @dev Returns the downcasted int32 from int256, reverting on
* overflow (when the input is less than smallest int32 or
* greater than largest int32).
*
* Counterpart to Solidity's `int32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(32, value);
}
}
/**
* @dev Returns the downcasted int24 from int256, reverting on
* overflow (when the input is less than smallest int24 or
* greater than largest int24).
*
* Counterpart to Solidity's `int24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(24, value);
}
}
/**
* @dev Returns the downcasted int16 from int256, reverting on
* overflow (when the input is less than smallest int16 or
* greater than largest int16).
*
* Counterpart to Solidity's `int16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(16, value);
}
}
/**
* @dev Returns the downcasted int8 from int256, reverting on
* overflow (when the input is less than smallest int8 or
* greater than largest int8).
*
* Counterpart to Solidity's `int8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(8, value);
}
}
/**
* @dev Converts an unsigned uint256 into a signed int256.
*
* Requirements:
*
* - input must be less than or equal to maxInt256.
*/
function toInt256(uint256 value) internal pure returns (int256) {
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
if (value > uint256(type(int256).max)) {
revert SafeCastOverflowedUintToInt(value);
}
return int256(value);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
pragma solidity ^0.8.20;
/**
* @dev Library for managing
* https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
* types.
*
* Sets have the following properties:
*
* - Elements are added, removed, and checked for existence in constant time
* (O(1)).
* - Elements are enumerated in O(n). No guarantees are made on the ordering.
*
* ```solidity
* contract Example {
* // Add the library methods
* using EnumerableSet for EnumerableSet.AddressSet;
*
* // Declare a set state variable
* EnumerableSet.AddressSet private mySet;
* }
* ```
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
* unusable.
* See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
*
* In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
* array of EnumerableSet.
* ====
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Set type with
// bytes32 values.
// The Set implementation uses private functions, and user-facing
// implementations (such as AddressSet) are just wrappers around the
// underlying Set.
// This means that we can only create new EnumerableSets for types that fit
// in bytes32.
struct Set {
// Storage of set values
bytes32[] _values;
// Position is the index of the value in the `values` array plus 1.
// Position 0 is used to mean a value is not in the set.
mapping(bytes32 value => uint256) _positions;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function _add(Set storage set, bytes32 value) private returns (bool) {
if (!_contains(set, value)) {
set._values.push(value);
// The value is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
set._positions[value] = set._values.length;
return true;
} else {
return false;
}
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function _remove(Set storage set, bytes32 value) private returns (bool) {
// We cache the value's position to prevent multiple reads from the same storage slot
uint256 position = set._positions[value];
if (position != 0) {
// Equivalent to contains(set, value)
// To delete an element from the _values array in O(1), we swap the element to delete with the last one in
// the array, and then remove the last element (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 valueIndex = position - 1;
uint256 lastIndex = set._values.length - 1;
if (valueIndex != lastIndex) {
bytes32 lastValue = set._values[lastIndex];
// Move the lastValue to the index where the value to delete is
set._values[valueIndex] = lastValue;
// Update the tracked position of the lastValue (that was just moved)
set._positions[lastValue] = position;
}
// Delete the slot where the moved value was stored
set._values.pop();
// Delete the tracked position for the deleted slot
delete set._positions[value];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function _contains(Set storage set, bytes32 value) private view returns (bool) {
return set._positions[value] != 0;
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function _length(Set storage set) private view returns (uint256) {
return set._values.length;
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Set storage set, uint256 index) private view returns (bytes32) {
return set._values[index];
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function _values(Set storage set) private view returns (bytes32[] memory) {
return set._values;
}
// Bytes32Set
struct Bytes32Set {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _add(set._inner, value);
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _remove(set._inner, value);
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
return _contains(set._inner, value);
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(Bytes32Set storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
return _at(set._inner, index);
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
bytes32[] memory store = _values(set._inner);
bytes32[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// AddressSet
struct AddressSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(AddressSet storage set, address value) internal returns (bool) {
return _add(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(AddressSet storage set, address value) internal returns (bool) {
return _remove(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(AddressSet storage set, address value) internal view returns (bool) {
return _contains(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(AddressSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressSet storage set, uint256 index) internal view returns (address) {
return address(uint160(uint256(_at(set._inner, index))));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(AddressSet storage set) internal view returns (address[] memory) {
bytes32[] memory store = _values(set._inner);
address[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// UintSet
struct UintSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(UintSet storage set, uint256 value) internal returns (bool) {
return _add(set._inner, bytes32(value));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(UintSet storage set, uint256 value) internal returns (bool) {
return _remove(set._inner, bytes32(value));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(UintSet storage set, uint256 value) internal view returns (bool) {
return _contains(set._inner, bytes32(value));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(UintSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintSet storage set, uint256 index) internal view returns (uint256) {
return uint256(_at(set._inner, index));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(UintSet storage set) internal view returns (uint256[] memory) {
bytes32[] memory store = _values(set._inner);
uint256[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol)
pragma solidity ^0.8.20;
/**
* @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
*
* These functions can be used to verify that a message was signed by the holder
* of the private keys of a given address.
*/
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS
}
/**
* @dev The signature derives the `address(0)`.
*/
error ECDSAInvalidSignature();
/**
* @dev The signature has an invalid length.
*/
error ECDSAInvalidSignatureLength(uint256 length);
/**
* @dev The signature has an S value that is in the upper half order.
*/
error ECDSAInvalidSignatureS(bytes32 s);
/**
* @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not
* return address(0) without also returning an error description. Errors are documented using an enum (error type)
* and a bytes32 providing additional information about the error.
*
* If no error is returned, then the address can be used for verification purposes.
*
* The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
*
* Documentation for signature generation:
* - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
* - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
*/
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) {
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
/// @solidity memory-safe-assembly
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else {
return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature`. This address can then be used for verification purposes.
*
* The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
*/
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);
_throwError(error, errorArg);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
*
* See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
*/
function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) {
unchecked {
bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
// We do not check for an overflow here since the shift operation results in 0 or 1.
uint8 v = uint8((uint256(vs) >> 255) + 27);
return tryRecover(hash, v, r, s);
}
}
/**
* @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
*/
function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
(address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);
_throwError(error, errorArg);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function tryRecover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address, RecoverError, bytes32) {
// EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
// unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
// the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
// signatures from current libraries generate a unique signature with an s-value in the lower half order.
//
// If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
// with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
// vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
// these malleable signatures as well.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS, s);
}
// If the signature is valid (and not malleable), return the signer address
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature, bytes32(0));
}
return (signer, RecoverError.NoError, bytes32(0));
}
/**
* @dev Overload of {ECDSA-recover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
(address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);
_throwError(error, errorArg);
return recovered;
}
/**
* @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.
*/
function _throwError(RecoverError error, bytes32 errorArg) private pure {
if (error == RecoverError.NoError) {
return; // no error: do nothing
} else if (error == RecoverError.InvalidSignature) {
revert ECDSAInvalidSignature();
} else if (error == RecoverError.InvalidSignatureLength) {
revert ECDSAInvalidSignatureLength(uint256(errorArg));
} else if (error == RecoverError.InvalidSignatureS) {
revert ECDSAInvalidSignatureS(errorArg);
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
abstract contract ClaimableFeesEvents {
/// @notice Emitted when the claim fee fraction is set. This fraction of the fees will be paid
/// to the caller of the `claimFees` function.
/// This encourages rational actors to call the function as soon as claim fee is higher than the gas cost.
/// @param claimerFraction The fraction of the fees to be paid to the claimer (100% = 1e18)
event ClaimerFractionSet(uint256 claimerFraction);
/// @notice Emitted when a fee recipient is set. The fee recipient receives the claimed fees.
/// @param feeRecipient The address of the fee recipient.
event FeeRecipientSet(address feeRecipient);
/// @notice Emitted when fees are claimed to the fee recipient address.
/// @param feeRecipient The address that receives the claimed fees.
/// @param claimedFees The amount of fees claimed, after the claimer reward is deducted.
/// @param claimer The address of the claimer (who called `claimFees`)
/// @param claimerReward The reward paid to the claimer for calling the `claimFees` function.
event FeesClaimed(address feeRecipient, uint256 claimedFees, address claimer, uint256 claimerReward);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IClaimableFees {
error ClaimableFees__ClaimerFractionAboveMax(uint256 claimerFraction, uint256 maxAllowed);
error ClaimableFees__FeeAmountZero();
error ClaimableFees__FeeRecipientZeroAddress();
function claimFees() external;
// ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════
function getClaimableAmount() external view returns (uint256);
function getClaimerFraction() external view returns (uint256);
function getClaimerReward() external view returns (uint256);
function getFeeRecipient() external view returns (address);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)
pragma solidity ^0.8.20;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev The ETH balance of the account is not enough to perform the operation.
*/
error AddressInsufficientBalance(address account);
/**
* @dev There's no code at `target` (it is not a contract).
*/
error AddressEmptyCode(address target);
/**
* @dev A call to an address target failed. The target may have reverted.
*/
error FailedInnerCall();
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
if (address(this).balance < amount) {
revert AddressInsufficientBalance(address(this));
}
(bool success, ) = recipient.call{value: amount}("");
if (!success) {
revert FailedInnerCall();
}
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason or custom error, it is bubbled
* up by this function (like regular Solidity function calls). However, if
* the call reverted with no returned reason, this function reverts with a
* {FailedInnerCall} error.
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
if (address(this).balance < value) {
revert AddressInsufficientBalance(address(this));
}
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
* was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
* unsuccessful call.
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata
) internal view returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
// only check if target is a contract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
if (returndata.length == 0 && target.code.length == 0) {
revert AddressEmptyCode(target);
}
return returndata;
}
}
/**
* @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
* revert reason or with a default {FailedInnerCall} error.
*/
function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
return returndata;
}
}
/**
* @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
*/
function _revert(bytes memory returndata) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert FailedInnerCall();
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)
pragma solidity ^0.8.20;
import {Math} from "./math/Math.sol";
import {SignedMath} from "./math/SignedMath.sol";
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant HEX_DIGITS = "0123456789abcdef";
uint8 private constant ADDRESS_LENGTH = 20;
/**
* @dev The `value` string doesn't fit in the specified `length`.
*/
error StringsInsufficientHexLength(uint256 value, uint256 length);
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toStringSigned(int256 value) internal pure returns (string memory) {
return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
uint256 localValue = value;
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = HEX_DIGITS[localValue & 0xf];
localValue >>= 4;
}
if (localValue != 0) {
revert StringsInsufficientHexLength(value, length);
}
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
* representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @dev Muldiv operation overflow.
*/
error MathOverflowedMulDiv();
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
return a / b;
}
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0 = x * y; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
if (denominator <= prod1) {
revert MathOverflowedMulDiv();
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}{
"remappings": [
"@openzeppelin/=node_modules/@openzeppelin/",
"@synapsecns/=node_modules/@synapsecns/",
"forge-std/=node_modules/forge-std/src/"
],
"optimizer": {
"enabled": true,
"runs": 200
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "paris",
"viaIR": false,
"libraries": {}
}Contract ABI
API[{"inputs":[{"internalType":"address","name":"interchainDB","type":"address"},{"internalType":"address","name":"owner_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[{"internalType":"uint256","name":"claimerFraction","type":"uint256"},{"internalType":"uint256","name":"maxAllowed","type":"uint256"}],"name":"ClaimableFees__ClaimerFractionAboveMax","type":"error"},{"inputs":[],"name":"ClaimableFees__FeeAmountZero","type":"error"},{"inputs":[],"name":"ClaimableFees__FeeRecipientZeroAddress","type":"error"},{"inputs":[],"name":"CortexModule__FeeRecipientZeroAddress","type":"error"},{"inputs":[{"internalType":"address","name":"gasOracle","type":"address"}],"name":"CortexModule__GasOracleNotContract","type":"error"},{"inputs":[],"name":"CortexModule__GasOracleZeroAddress","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[{"internalType":"address","name":"caller","type":"address"}],"name":"InterchainModule__CallerNotInterchainDB","type":"error"},{"inputs":[{"internalType":"uint64","name":"chainId","type":"uint64"}],"name":"InterchainModule__ChainIdNotRemote","type":"error"},{"inputs":[{"internalType":"uint256","name":"feeAmount","type":"uint256"},{"internalType":"uint256","name":"minRequired","type":"uint256"}],"name":"InterchainModule__FeeAmountBelowMin","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"ThresholdECDSA__RecoveredSignersNotSorted","type":"error"},{"inputs":[{"internalType":"uint256","name":"signaturesAmount","type":"uint256"},{"internalType":"uint256","name":"threshold","type":"uint256"}],"name":"ThresholdECDSA__SignaturesAmountBelowThreshold","type":"error"},{"inputs":[{"internalType":"uint256","name":"length","type":"uint256"}],"name":"ThresholdECDSA__SignaturesPayloadLengthInvalid","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"ThresholdECDSA__SignerAlreadyAdded","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"ThresholdECDSA__SignerNotAdded","type":"error"},{"inputs":[{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"ThresholdECDSA__SignerRecoveryFailed","type":"error"},{"inputs":[],"name":"ThresholdECDSA__SignerZeroAddress","type":"error"},{"inputs":[],"name":"ThresholdECDSA__ThresholdZero","type":"error"},{"inputs":[{"internalType":"bytes","name":"versionedPayload","type":"bytes"}],"name":"VersionedPayload__PayloadTooShort","type":"error"},{"inputs":[],"name":"VersionedPayload__PrecompileFailed","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"claimerFraction","type":"uint256"}],"name":"ClaimerFractionSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"dstChainId","type":"uint64"},{"indexed":false,"internalType":"bytes","name":"entry","type":"bytes"},{"indexed":false,"internalType":"bytes32","name":"ethSignedEntryHash","type":"bytes32"}],"name":"EntryVerificationRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"srcChainId","type":"uint64"},{"indexed":false,"internalType":"bytes","name":"entry","type":"bytes"},{"indexed":false,"internalType":"bytes32","name":"ethSignedEntryHash","type":"bytes32"}],"name":"EntryVerified","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"feeRecipient","type":"address"}],"name":"FeeRecipientSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"feeRecipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"claimedFees","type":"uint256"},{"indexed":false,"internalType":"address","name":"claimer","type":"address"},{"indexed":false,"internalType":"uint256","name":"claimerReward","type":"uint256"}],"name":"FeesClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"srcChainId","type":"uint64"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"GasDataReceived","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"dstChainId","type":"uint64"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"GasDataSent","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"gasOracle","type":"address"}],"name":"GasOracleSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"threshold","type":"uint256"}],"name":"ThresholdSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"verifier","type":"address"}],"name":"VerifierAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"verifier","type":"address"}],"name":"VerifierRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"chainId","type":"uint64"},{"indexed":false,"internalType":"uint256","name":"gasLimit","type":"uint256"}],"name":"VerifyGasLimitSet","type":"event"},{"inputs":[],"name":"DEFAULT_VERIFY_GAS_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"INTERCHAIN_DB","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"verifier","type":"address"}],"name":"addVerifier","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"verifiers","type":"address[]"}],"name":"addVerifiers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"gasOracle","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getClaimableAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getClaimerFraction","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getClaimerReward","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getFeeRecipient","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"dstChainId","type":"uint64"}],"name":"getModuleFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getThreshold","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVerifiers","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"chainId","type":"uint64"}],"name":"getVerifyGasLimit","outputs":[{"internalType":"uint256","name":"gasLimit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isVerifier","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"verifier","type":"address"}],"name":"removeVerifier","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"verifiers","type":"address[]"}],"name":"removeVerifiers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint64","name":"dstChainId","type":"uint64"},{"internalType":"bytes","name":"versionedEntry","type":"bytes"}],"name":"requestEntryVerification","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"claimerFraction","type":"uint256"}],"name":"setClaimerFraction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"feeRecipient","type":"address"}],"name":"setFeeRecipient","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"gasOracle_","type":"address"}],"name":"setGasOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"threshold","type":"uint256"}],"name":"setThreshold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint64","name":"chainId","type":"uint64"},{"internalType":"uint256","name":"gasLimit","type":"uint256"}],"name":"setVerifyGasLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"encodedEntry","type":"bytes"},{"internalType":"bytes","name":"signatures","type":"bytes"}],"name":"verifyRemoteEntry","outputs":[],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000002def303ea27a3674bb3a5d017e60b2ef43312a11000000000000000000000000e7353bedc72d29f99d6ca5cde69f807cce5d57e4
-----Decoded View---------------
Arg [0] : interchainDB (address): 0x2DeF303EA27a3674bb3a5d017e60B2Ef43312A11
Arg [1] : owner_ (address): 0xE7353BEdc72D29f99D6cA5CDE69F807cCE5d57e4
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000002def303ea27a3674bb3a5d017e60b2ef43312a11
Arg [1] : 000000000000000000000000e7353bedc72d29f99d6ca5cde69f807cce5d57e4
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.