Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- TaikoL2
- Optimization enabled
- true
- Compiler version
- v0.8.24+commit.e11b9ed9
- Optimization runs
- 200
- EVM Version
- cancun
- Verified at
- 2024-06-10T05:04:57.702663Z
contracts/L2/TaikoL2.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "../common/EssentialContract.sol";
import "../common/LibStrings.sol";
import "../libs/LibAddress.sol";
import "../signal/ISignalService.sol";
import "./Lib1559Math.sol";
import "./LibL2Config.sol";
/// @title TaikoL2
/// @notice Taiko L2 is a smart contract that handles cross-layer message
/// verification and manages EIP-1559 gas pricing for Layer 2 (L2) operations.
/// It is used to anchor the latest L1 block details to L2 for cross-layer
/// communication, manage EIP-1559 parameters for gas pricing, and store
/// verified L1 block information.
/// @custom:security-contact security@taiko.xyz
contract TaikoL2 is EssentialContract {
using LibAddress for address;
using SafeERC20 for IERC20;
/// @notice Golden touch address is the only address that can do the anchor transaction.
address public constant GOLDEN_TOUCH_ADDRESS = 0x0000777735367b36bC9B61C50022d9D0700dB4Ec;
/// @notice Mapping from L2 block numbers to their block hashes. All L2 block hashes will
/// be saved in this mapping.
mapping(uint256 blockId => bytes32 blockHash) public l2Hashes;
/// @notice A hash to check the integrity of public inputs.
/// @dev Slot 2.
bytes32 public publicInputHash;
/// @notice The gas excess value used to calculate the base fee.
/// @dev Slot 3.
uint64 public gasExcess;
/// @notice The last synced L1 block height.
uint64 public lastSyncedBlock;
uint64 private __deprecated1; // was parentTimestamp
uint64 private __deprecated2; // was __currentBlockTimestamp
/// @notice The L1's chain ID.
uint64 public l1ChainId;
uint256[46] private __gap;
/// @notice Emitted when the latest L1 block details are anchored to L2.
/// @param parentHash The hash of the parent block.
/// @param gasExcess The gas excess value used to calculate the base fee.
event Anchored(bytes32 parentHash, uint64 gasExcess);
error L2_BASEFEE_MISMATCH();
error L2_INVALID_L1_CHAIN_ID();
error L2_INVALID_L2_CHAIN_ID();
error L2_INVALID_PARAM();
error L2_INVALID_SENDER();
error L2_PUBLIC_INPUT_HASH_MISMATCH();
error L2_TOO_LATE();
/// @notice Initializes the contract.
/// @param _owner The owner of this contract. msg.sender will be used if this value is zero.
/// @param _addressManager The address of the {AddressManager} contract.
/// @param _l1ChainId The ID of the base layer.
/// @param _gasExcess The initial gasExcess.
function init(
address _owner,
address _addressManager,
uint64 _l1ChainId,
uint64 _gasExcess
)
external
initializer
{
__Essential_init(_owner, _addressManager);
if (_l1ChainId == 0 || _l1ChainId == block.chainid) {
revert L2_INVALID_L1_CHAIN_ID();
}
if (block.chainid <= 1 || block.chainid > type(uint64).max) {
revert L2_INVALID_L2_CHAIN_ID();
}
if (block.number == 0) {
// This is the case in real L2 genesis
} else if (block.number == 1) {
// This is the case in tests
uint256 parentHeight = block.number - 1;
l2Hashes[parentHeight] = blockhash(parentHeight);
} else {
revert L2_TOO_LATE();
}
l1ChainId = _l1ChainId;
gasExcess = _gasExcess;
(publicInputHash,) = _calcPublicInputHash(block.number);
}
/// @notice Anchors the latest L1 block details to L2 for cross-layer
/// message verification.
/// @dev This function can be called freely as the golden touch private key is publicly known,
/// but the Taiko node guarantees the first transaction of each block is always this anchor
/// transaction, and any subsequent calls will revert with L2_PUBLIC_INPUT_HASH_MISMATCH.
/// @param _l1BlockHash The latest L1 block hash when this block was
/// proposed.
/// @param _l1StateRoot The latest L1 block's state root.
/// @param _l1BlockId The latest L1 block height when this block was proposed.
/// @param _parentGasUsed The gas used in the parent block.
function anchor(
bytes32 _l1BlockHash,
bytes32 _l1StateRoot,
uint64 _l1BlockId,
uint32 _parentGasUsed
)
external
nonReentrant
{
if (
_l1BlockHash == 0 || _l1StateRoot == 0 || _l1BlockId == 0
|| (block.number != 1 && _parentGasUsed == 0)
) {
revert L2_INVALID_PARAM();
}
if (msg.sender != GOLDEN_TOUCH_ADDRESS) revert L2_INVALID_SENDER();
uint256 parentId;
unchecked {
parentId = block.number - 1;
}
// Verify ancestor hashes
(bytes32 publicInputHashOld, bytes32 publicInputHashNew) = _calcPublicInputHash(parentId);
if (publicInputHash != publicInputHashOld) {
revert L2_PUBLIC_INPUT_HASH_MISMATCH();
}
// Verify the base fee per gas is correct
(uint256 _basefee, uint64 _gasExcess) = getBasefee(_l1BlockId, _parentGasUsed);
if (!skipFeeCheck() && block.basefee != _basefee) {
revert L2_BASEFEE_MISMATCH();
}
if (_l1BlockId > lastSyncedBlock) {
// Store the L1's state root as a signal to the local signal service to
// allow for multi-hop bridging.
ISignalService(resolve(LibStrings.B_SIGNAL_SERVICE, false)).syncChainData(
l1ChainId, LibStrings.H_STATE_ROOT, _l1BlockId, _l1StateRoot
);
lastSyncedBlock = _l1BlockId;
}
// Update state variables
bytes32 _parentHash = blockhash(parentId);
l2Hashes[parentId] = _parentHash;
publicInputHash = publicInputHashNew;
gasExcess = _gasExcess;
emit Anchored(_parentHash, _gasExcess);
}
/// @notice Withdraw token or Ether from this address
/// @param _token Token address or address(0) if Ether.
/// @param _to Withdraw to address.
function withdraw(
address _token,
address _to
)
external
whenNotPaused
onlyFromOwnerOrNamed(LibStrings.B_WITHDRAWER)
nonReentrant
{
if (_to == address(0)) revert L2_INVALID_PARAM();
if (_token == address(0)) {
_to.sendEtherAndVerify(address(this).balance);
} else {
IERC20(_token).safeTransfer(_to, IERC20(_token).balanceOf(address(this)));
}
}
/// @notice Gets the basefee and gas excess using EIP-1559 configuration for
/// the given parameters.
/// @param _l1BlockId The synced L1 height in the next Taiko block
/// @param _parentGasUsed Gas used in the parent block.
/// @return basefee_ The calculated EIP-1559 base fee per gas.
/// @return gasExcess_ The new gasExcess value.
function getBasefee(
uint64 _l1BlockId,
uint32 _parentGasUsed
)
public
view
returns (uint256 basefee_, uint64 gasExcess_)
{
LibL2Config.Config memory config = getConfig();
uint64 gasIssuance = uint64(_l1BlockId - lastSyncedBlock) * config.gasTargetPerL1Block;
(basefee_, gasExcess_) = Lib1559Math.calc1559BaseFee(
config.gasTargetPerL1Block,
config.basefeeAdjustmentQuotient,
gasExcess,
gasIssuance,
_parentGasUsed
);
}
/// @notice Retrieves the block hash for the given L2 block number.
/// @param _blockId The L2 block number to retrieve the block hash for.
/// @return The block hash for the specified L2 block id, or zero if the
/// block id is greater than or equal to the current block number.
function getBlockHash(uint64 _blockId) public view returns (bytes32) {
if (_blockId >= block.number) return 0;
if (_blockId + 256 >= block.number) return blockhash(_blockId);
return l2Hashes[_blockId];
}
/// @notice Returns EIP1559 related configurations.
/// @return config_ struct containing configuration parameters.
function getConfig() public view virtual returns (LibL2Config.Config memory) {
return LibL2Config.get();
}
/// @notice Tells if we need to validate basefee (for simulation).
/// @return Returns true to skip checking basefee mismatch.
function skipFeeCheck() public pure virtual returns (bool) {
return false;
}
function _calcPublicInputHash(uint256 _blockId)
private
view
returns (bytes32 publicInputHashOld, bytes32 publicInputHashNew)
{
bytes32[256] memory inputs;
// Unchecked is safe because it cannot overflow.
unchecked {
// Put the previous 255 blockhashes (excluding the parent's) into a
// ring buffer.
for (uint256 i; i < 255 && _blockId >= i + 1; ++i) {
uint256 j = _blockId - i - 1;
inputs[j % 255] = blockhash(j);
}
}
inputs[255] = bytes32(block.chainid);
assembly {
publicInputHashOld := keccak256(inputs, 8192 /*mul(256, 32)*/ )
}
inputs[_blockId % 255] = blockhash(_blockId);
assembly {
publicInputHashNew := keccak256(inputs, 8192 /*mul(256, 32)*/ )
}
}
}
contracts/common/AddressResolver.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "./IAddressManager.sol";
import "./IAddressResolver.sol";
/// @title AddressResolver
/// @notice See the documentation in {IAddressResolver}.
/// @custom:security-contact security@taiko.xyz
abstract contract AddressResolver is IAddressResolver, Initializable {
/// @notice Address of the AddressManager.
address public addressManager;
uint256[49] private __gap;
error RESOLVER_DENIED();
error RESOLVER_INVALID_MANAGER();
error RESOLVER_UNEXPECTED_CHAINID();
error RESOLVER_ZERO_ADDR(uint64 chainId, bytes32 name);
/// @dev Modifier that ensures the caller is the resolved address of a given
/// name.
/// @param _name The name to check against.
modifier onlyFromNamed(bytes32 _name) {
if (msg.sender != resolve(_name, true)) revert RESOLVER_DENIED();
_;
}
/// @dev Modifier that ensures the caller is a resolved address to either _name1 or _name2
/// name.
/// @param _name1 The first name to check against.
/// @param _name2 The second name to check against.
modifier onlyFromNamedEither(bytes32 _name1, bytes32 _name2) {
if (msg.sender != resolve(_name1, true) && msg.sender != resolve(_name2, true)) {
revert RESOLVER_DENIED();
}
_;
}
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
/// @inheritdoc IAddressResolver
function resolve(
bytes32 _name,
bool _allowZeroAddress
)
public
view
virtual
returns (address payable)
{
return _resolve(uint64(block.chainid), _name, _allowZeroAddress);
}
/// @inheritdoc IAddressResolver
function resolve(
uint64 _chainId,
bytes32 _name,
bool _allowZeroAddress
)
public
view
virtual
returns (address payable)
{
return _resolve(_chainId, _name, _allowZeroAddress);
}
/// @dev Initialization method for setting up AddressManager reference.
/// @param _addressManager Address of the AddressManager.
function __AddressResolver_init(address _addressManager) internal virtual onlyInitializing {
if (block.chainid > type(uint64).max) {
revert RESOLVER_UNEXPECTED_CHAINID();
}
addressManager = _addressManager;
}
/// @dev Helper method to resolve name-to-address.
/// @param _chainId The chainId of interest.
/// @param _name Name whose address is to be resolved.
/// @param _allowZeroAddress If set to true, does not throw if the resolved
/// address is `address(0)`.
/// @return addr_ Address associated with the given name on the specified
/// chain.
function _resolve(
uint64 _chainId,
bytes32 _name,
bool _allowZeroAddress
)
private
view
returns (address payable addr_)
{
address _addressManager = addressManager;
if (_addressManager == address(0)) revert RESOLVER_INVALID_MANAGER();
addr_ = payable(IAddressManager(_addressManager).getAddress(_chainId, _name));
if (!_allowZeroAddress && addr_ == address(0)) {
revert RESOLVER_ZERO_ADDR(_chainId, _name);
}
}
}
contracts/common/EssentialContract.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import "@openzeppelin/contracts/proxy/utils/UUPSUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
import "./AddressResolver.sol";
import "../libs/LibNetwork.sol";
/// @title EssentialContract
/// @custom:security-contact security@taiko.xyz
abstract contract EssentialContract is UUPSUpgradeable, Ownable2StepUpgradeable, AddressResolver {
uint8 private constant _FALSE = 1;
uint8 private constant _TRUE = 2;
/// @dev The slot in transient storage of the reentry lock.
/// This is the result of keccak256("ownerUUPS.reentry_slot") plus 1. The addition aims to
/// prevent hash collisions with slots defined in EIP-1967, where slots are derived by
/// keccak256("something") - 1, and with slots in SignalService, calculated directly with
/// keccak256("something").
bytes32 private constant _REENTRY_SLOT =
0xa5054f728453d3dbe953bdc43e4d0cb97e662ea32d7958190f3dc2da31d9721b;
/// @dev Slot 1.
uint8 private __reentry;
uint8 private __paused;
uint64 public lastUnpausedAt;
uint256[49] private __gap;
/// @notice Emitted when the contract is paused.
/// @param account The account that paused the contract.
event Paused(address account);
/// @notice Emitted when the contract is unpaused.
/// @param account The account that unpaused the contract.
event Unpaused(address account);
error INVALID_PAUSE_STATUS();
error FUNC_NOT_IMPLEMENTED();
error REENTRANT_CALL();
error ZERO_ADDRESS();
error ZERO_VALUE();
/// @dev Modifier that ensures the caller is the owner or resolved address of a given name.
/// @param _name The name to check against.
modifier onlyFromOwnerOrNamed(bytes32 _name) {
if (msg.sender != owner() && msg.sender != resolve(_name, true)) revert RESOLVER_DENIED();
_;
}
modifier notImplemented() {
revert FUNC_NOT_IMPLEMENTED();
_;
}
modifier nonReentrant() {
if (_loadReentryLock() == _TRUE) revert REENTRANT_CALL();
_storeReentryLock(_TRUE);
_;
_storeReentryLock(_FALSE);
}
modifier whenPaused() {
if (!paused()) revert INVALID_PAUSE_STATUS();
_;
}
modifier whenNotPaused() {
if (paused()) revert INVALID_PAUSE_STATUS();
_;
}
modifier nonZeroAddr(address _addr) {
if (_addr == address(0)) revert ZERO_ADDRESS();
_;
}
modifier nonZeroValue(bytes32 _value) {
if (_value == 0) revert ZERO_VALUE();
_;
}
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
/// @notice Pauses the contract.
function pause() public virtual {
_pause();
// We call the authorize function here to avoid:
// Warning (5740): Unreachable code.
_authorizePause(msg.sender, true);
}
/// @notice Unpauses the contract.
function unpause() public virtual {
_unpause();
// We call the authorize function here to avoid:
// Warning (5740): Unreachable code.
_authorizePause(msg.sender, false);
}
function impl() public view returns (address) {
return _getImplementation();
}
/// @notice Returns true if the contract is paused, and false otherwise.
/// @return true if paused, false otherwise.
function paused() public view returns (bool) {
return __paused == _TRUE;
}
function inNonReentrant() public view returns (bool) {
return _loadReentryLock() == _TRUE;
}
/// @notice Initializes the contract.
/// @param _owner The owner of this contract. msg.sender will be used if this value is zero.
/// @param _addressManager The address of the {AddressManager} contract.
function __Essential_init(
address _owner,
address _addressManager
)
internal
nonZeroAddr(_addressManager)
{
__Essential_init(_owner);
__AddressResolver_init(_addressManager);
}
function __Essential_init(address _owner) internal virtual onlyInitializing {
__Context_init();
_transferOwnership(_owner == address(0) ? msg.sender : _owner);
__paused = _FALSE;
}
function _pause() internal whenNotPaused {
__paused = _TRUE;
emit Paused(msg.sender);
}
function _unpause() internal whenPaused {
__paused = _FALSE;
lastUnpausedAt = uint64(block.timestamp);
emit Unpaused(msg.sender);
}
function _authorizeUpgrade(address) internal virtual override onlyOwner { }
function _authorizePause(address, bool) internal virtual onlyOwner { }
// Stores the reentry lock
function _storeReentryLock(uint8 _reentry) internal virtual {
if (LibNetwork.isDencunSupported(block.chainid)) {
assembly {
tstore(_REENTRY_SLOT, _reentry)
}
} else {
__reentry = _reentry;
}
}
// Loads the reentry lock
function _loadReentryLock() internal view virtual returns (uint8 reentry_) {
if (LibNetwork.isDencunSupported(block.chainid)) {
assembly {
reentry_ := tload(_REENTRY_SLOT)
}
} else {
reentry_ = __reentry;
}
}
}
contracts/common/IAddressManager.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
/// @title IAddressManager
/// @notice Manages a mapping of (chainId, name) pairs to Ethereum addresses.
/// @custom:security-contact security@taiko.xyz
interface IAddressManager {
/// @notice Gets the address mapped to a specific chainId-name pair.
/// @dev Note that in production, this method shall be a pure function
/// without any storage access.
/// @param _chainId The chainId for which the address needs to be fetched.
/// @param _name The name for which the address needs to be fetched.
/// @return Address associated with the chainId-name pair.
function getAddress(uint64 _chainId, bytes32 _name) external view returns (address);
}
contracts/L2/Lib1559Math.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import "../thirdparty/solmate/LibFixedPointMath.sol";
import "../libs/LibMath.sol";
/// @title Lib1559Math
/// @notice Implements e^(x) based bonding curve for EIP-1559
/// @dev See https://ethresear.ch/t/make-eip-1559-more-like-an-amm-curve/9082 but some minor
/// difference as stated in docs/eip1559_on_l2.md.
/// @custom:security-contact security@taiko.xyz
library Lib1559Math {
using LibMath for uint256;
error EIP1559_INVALID_PARAMS();
function calc1559BaseFee(
uint32 _gasTargetPerL1Block,
uint8 _adjustmentQuotient,
uint64 _gasExcess,
uint64 _gasIssuance,
uint32 _parentGasUsed
)
internal
pure
returns (uint256 basefee_, uint64 gasExcess_)
{
// We always add the gas used by parent block to the gas excess
// value as this has already happened
uint256 excess = uint256(_gasExcess) + _parentGasUsed;
excess = excess > _gasIssuance ? excess - _gasIssuance : 1;
gasExcess_ = uint64(excess.min(type(uint64).max));
// The base fee per gas used by this block is the spot price at the
// bonding curve, regardless the actual amount of gas used by this
// block, however, this block's gas used will affect the next
// block's base fee.
basefee_ = basefee(gasExcess_, uint256(_adjustmentQuotient) * _gasTargetPerL1Block);
// Always make sure basefee is nonzero, this is required by the node.
if (basefee_ == 0) basefee_ = 1;
}
/// @dev eth_qty(excess_gas_issued) / (TARGET * ADJUSTMENT_QUOTIENT)
/// @param _gasExcess The gas excess value
/// @param _adjustmentFactor The product of gasTarget and adjustmentQuotient
function basefee(
uint256 _gasExcess,
uint256 _adjustmentFactor
)
internal
pure
returns (uint256)
{
if (_adjustmentFactor == 0) {
revert EIP1559_INVALID_PARAMS();
}
return _ethQty(_gasExcess, _adjustmentFactor) / LibFixedPointMath.SCALING_FACTOR;
}
/// @dev exp(gas_qty / TARGET / ADJUSTMENT_QUOTIENT)
function _ethQty(
uint256 _gasExcess,
uint256 _adjustmentFactor
)
private
pure
returns (uint256)
{
uint256 input = _gasExcess * LibFixedPointMath.SCALING_FACTOR / _adjustmentFactor;
if (input > LibFixedPointMath.MAX_EXP_INPUT) {
input = LibFixedPointMath.MAX_EXP_INPUT;
}
return uint256(LibFixedPointMath.exp(int256(input)));
}
}
contracts/L2/LibL2Config.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
/// @title LibL2Config
library LibL2Config {
struct Config {
uint32 gasTargetPerL1Block;
uint8 basefeeAdjustmentQuotient;
}
/// @notice Returns EIP1559 related configurations.
/// @return config_ struct containing configuration parameters.
function get() internal pure returns (Config memory config_) {
// Assuming we sell 3x more blockspace than Ethereum: 15_000_000 * 4
// Note that Brecht's concern is that this value may be too large.
// We need to monitor L2 state growth and lower this value when necessary.
config_.gasTargetPerL1Block = 60_000_000;
config_.basefeeAdjustmentQuotient = 8;
}
}
contracts/common/IAddressResolver.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
/// @title IAddressResolver
/// @notice This contract acts as a bridge for name-to-address resolution.
/// It delegates the resolution to the AddressManager. By separating the logic,
/// we can maintain flexibility in address management without affecting the
/// resolving process.
/// @dev Note that the address manager should be changed using upgradability, there
/// is no setAddressManager() function to guarantee atomicity across all
/// contracts that are resolvers.
/// @custom:security-contact security@taiko.xyz
interface IAddressResolver {
/// @notice Resolves a name to its address deployed on this chain.
/// @param _name Name whose address is to be resolved.
/// @param _allowZeroAddress If set to true, does not throw if the resolved
/// address is `address(0)`.
/// @return Address associated with the given name.
function resolve(
bytes32 _name,
bool _allowZeroAddress
)
external
view
returns (address payable);
/// @notice Resolves a name to its address deployed on a specified chain.
/// @param _chainId The chainId of interest.
/// @param _name Name whose address is to be resolved.
/// @param _allowZeroAddress If set to true, does not throw if the resolved
/// address is `address(0)`.
/// @return Address associated with the given name on the specified
/// chain.
function resolve(
uint64 _chainId,
bytes32 _name,
bool _allowZeroAddress
)
external
view
returns (address payable);
}
contracts/common/LibStrings.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
/// @title LibStrings
/// @custom:security-contact security@taiko.xyz
library LibStrings {
bytes32 internal constant B_AUTOMATA_DCAP_ATTESTATION = bytes32("automata_dcap_attestation");
bytes32 internal constant B_BRIDGE = bytes32("bridge");
bytes32 internal constant B_BRIDGE_WATCHDOG = bytes32("bridge_watchdog");
bytes32 internal constant B_BRIDGED_ERC1155 = bytes32("bridged_erc1155");
bytes32 internal constant B_BRIDGED_ERC20 = bytes32("bridged_erc20");
bytes32 internal constant B_BRIDGED_ERC721 = bytes32("bridged_erc721");
bytes32 internal constant B_CHAIN_WATCHDOG = bytes32("chain_watchdog");
bytes32 internal constant B_ERC1155_VAULT = bytes32("erc1155_vault");
bytes32 internal constant B_ERC20_VAULT = bytes32("erc20_vault");
bytes32 internal constant B_ERC721_VAULT = bytes32("erc721_vault");
bytes32 internal constant B_PROVER_ASSIGNMENT = bytes32("PROVER_ASSIGNMENT");
bytes32 internal constant B_PROVER_SET = bytes32("prover_set");
bytes32 internal constant B_QUOTA_MANAGER = bytes32("quota_manager");
bytes32 internal constant B_SGX_WATCHDOG = bytes32("sgx_watchdog");
bytes32 internal constant B_SIGNAL_SERVICE = bytes32("signal_service");
bytes32 internal constant B_TAIKO = bytes32("taiko");
bytes32 internal constant B_TAIKO_TOKEN = bytes32("taiko_token");
bytes32 internal constant B_TIER_GUARDIAN = bytes32("tier_guardian");
bytes32 internal constant B_TIER_GUARDIAN_MINORITY = bytes32("tier_guardian_minority");
bytes32 internal constant B_TIER_ROUTER = bytes32("tier_router");
bytes32 internal constant B_TIER_SGX = bytes32("tier_sgx");
bytes32 internal constant B_TIER_SGX_ZKVM = bytes32("tier_sgx_zkvm");
bytes32 internal constant B_WITHDRAWER = bytes32("withdrawer");
bytes32 internal constant H_RETURN_LIVENESS_BOND = keccak256("RETURN_LIVENESS_BOND");
bytes32 internal constant H_SIGNAL_ROOT = keccak256("SIGNAL_ROOT");
bytes32 internal constant H_STATE_ROOT = keccak256("STATE_ROOT");
}
contracts/libs/LibAddress.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "@openzeppelin/contracts/interfaces/IERC1271.sol";
/// @title LibAddress
/// @dev Provides utilities for address-related operations.
/// @custom:security-contact security@taiko.xyz
library LibAddress {
error ETH_TRANSFER_FAILED();
/// @dev Sends Ether to the specified address. This method will not revert even if sending ether
/// fails.
/// This function is inspired by
/// https://github.com/nomad-xyz/ExcessivelySafeCall/blob/main/src/ExcessivelySafeCall.sol
/// @param _to The recipient address.
/// @param _amount The amount of Ether to send in wei.
/// @param _gasLimit The max amount gas to pay for this transaction.
/// @return success_ true if the call is successful, false otherwise.
function sendEther(
address _to,
uint256 _amount,
uint256 _gasLimit,
bytes memory _calldata
)
internal
returns (bool success_)
{
// Check for zero-address transactions
if (_to == address(0)) revert ETH_TRANSFER_FAILED();
// dispatch message to recipient
// by assembly calling "handle" function
// we call via assembly to avoid memcopying a very large returndata
// returned by a malicious contract
assembly {
success_ :=
call(
_gasLimit, // gas
_to, // recipient
_amount, // ether value
add(_calldata, 0x20), // inloc
mload(_calldata), // inlen
0, // outloc
0 // outlen
)
}
}
/// @dev Sends Ether to the specified address. This method will revert if sending ether fails.
/// @param _to The recipient address.
/// @param _amount The amount of Ether to send in wei.
/// @param _gasLimit The max amount gas to pay for this transaction.
function sendEtherAndVerify(address _to, uint256 _amount, uint256 _gasLimit) internal {
if (_amount == 0) return;
if (!sendEther(_to, _amount, _gasLimit, "")) {
revert ETH_TRANSFER_FAILED();
}
}
/// @dev Sends Ether to the specified address. This method will revert if sending ether fails.
/// @param _to The recipient address.
/// @param _amount The amount of Ether to send in wei.
function sendEtherAndVerify(address _to, uint256 _amount) internal {
sendEtherAndVerify(_to, _amount, gasleft());
}
function supportsInterface(
address _addr,
bytes4 _interfaceId
)
internal
view
returns (bool result_)
{
if (!Address.isContract(_addr)) return false;
try IERC165(_addr).supportsInterface(_interfaceId) returns (bool _result) {
result_ = _result;
} catch { }
}
}
contracts/libs/LibMath.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
/// @title LibMath
/// @dev This library offers additional math functions for uint256.
/// @custom:security-contact security@taiko.xyz
library LibMath {
/// @dev Returns the smaller of the two given values.
/// @param _a The first number to compare.
/// @param _b The second number to compare.
/// @return The smaller of the two numbers.
function min(uint256 _a, uint256 _b) internal pure returns (uint256) {
return _a > _b ? _b : _a;
}
/// @dev Returns the larger of the two given values.
/// @param _a The first number to compare.
/// @param _b The second number to compare.
/// @return The larger of the two numbers.
function max(uint256 _a, uint256 _b) internal pure returns (uint256) {
return _a > _b ? _a : _b;
}
}
contracts/libs/LibNetwork.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
/// @title LibNetwork
library LibNetwork {
uint256 internal constant MAINNET = 1;
uint256 internal constant ROPSTEN = 2;
uint256 internal constant RINKEBY = 4;
uint256 internal constant GOERLI = 5;
uint256 internal constant KOVAN = 42;
uint256 internal constant HOLESKY = 17_000;
uint256 internal constant SEPOLIA = 11_155_111;
uint64 internal constant TAIKO = 167_009;
/// @dev Checks if the chain ID represents an Ethereum testnet.
/// @param _chainId The chain ID.
/// @return true if the chain ID represents an Ethereum testnet, false otherwise.
function isEthereumTestnet(uint256 _chainId) internal pure returns (bool) {
return _chainId == LibNetwork.ROPSTEN || _chainId == LibNetwork.RINKEBY
|| _chainId == LibNetwork.GOERLI || _chainId == LibNetwork.KOVAN
|| _chainId == LibNetwork.HOLESKY || _chainId == LibNetwork.SEPOLIA;
}
/// @dev Checks if the chain ID represents an Ethereum testnet or the Etheruem mainnet.
/// @param _chainId The chain ID.
/// @return true if the chain ID represents an Ethereum testnet or the Etheruem mainnet, false
/// otherwise.
function isEthereumMainnetOrTestnet(uint256 _chainId) internal pure returns (bool) {
return _chainId == LibNetwork.MAINNET || isEthereumTestnet(_chainId);
}
/// @dev Checks if the chain ID represents the Taiko L2 mainnet.
/// @param _chainId The chain ID.
/// @return true if the chain ID represents the Taiko L2 mainnet.
function isTaikoMainnet(uint256 _chainId) internal pure returns (bool) {
return _chainId == TAIKO;
}
/// @dev Checks if the chain ID represents an internal Taiko devnet's base layer.
/// @param _chainId The chain ID.
/// @return true if the chain ID represents an internal Taiko devnet's base layer, false
/// otherwise.
function isTaikoDevnet(uint256 _chainId) internal pure returns (bool) {
return _chainId >= 32_300 && _chainId <= 32_400;
}
/// @dev Checks if the chain supports Dencun hardfork. Note that this check doesn't need to be
/// exhaustive.
/// @param _chainId The chain ID.
/// @return true if the chain supports Dencun hardfork, false otherwise.
function isDencunSupported(uint256 _chainId) internal pure returns (bool) {
return _chainId == LibNetwork.MAINNET || _chainId == LibNetwork.HOLESKY
|| _chainId == LibNetwork.SEPOLIA || isTaikoDevnet(_chainId);
}
}
contracts/signal/ISignalService.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;
/// @title ISignalService
/// @notice The SignalService contract serves as a secure cross-chain message
/// passing system. It defines methods for sending and verifying signals with
/// merkle proofs. The trust assumption is that the target chain has secure
/// access to the merkle root (such as Taiko injects it in the anchor
/// transaction). With this, verifying a signal is reduced to simply verifying
/// a merkle proof.
/// @custom:security-contact security@taiko.xyz
interface ISignalService {
enum CacheOption {
CACHE_NOTHING,
CACHE_SIGNAL_ROOT,
CACHE_STATE_ROOT,
CACHE_BOTH
}
struct HopProof {
/// @notice This hop's destination chain ID. If there is a next hop, this ID is the next
/// hop's source chain ID.
uint64 chainId;
/// @notice The ID of a source chain block whose state root has been synced to the hop's
/// destination chain.
/// Note that this block ID must be greater than or equal to the block ID where the signal
/// was sent on the source chain.
uint64 blockId;
/// @notice The state root or signal root of the source chain at the above blockId. This
/// value has been synced to the destination chain.
/// @dev To get both the blockId and the rootHash, apps should subscribe to the
/// ChainDataSynced event or query `topBlockId` first using the source chain's ID and
/// LibStrings.H_STATE_ROOT to get the most recent block ID synced, then call
/// `getSyncedChainData` to read the synchronized data.
bytes32 rootHash;
/// @notice Options to cache either the state roots or signal roots of middle-hops to the
/// current chain.
CacheOption cacheOption;
/// @notice The signal service's account proof. If this value is empty, then `rootHash` will
/// be used as the signal root, otherwise, `rootHash` will be used as the state root.
bytes[] accountProof;
/// @notice The signal service's storage proof.
bytes[] storageProof;
}
/// @notice Emitted when a remote chain's state root or signal root is
/// synced locally as a signal.
/// @param chainId The remote chainId.
/// @param blockId The chain data's corresponding blockId.
/// @param kind A value to mark the data type.
/// @param data The remote data.
/// @param signal The signal for this chain data.
event ChainDataSynced(
uint64 indexed chainId,
uint64 indexed blockId,
bytes32 indexed kind,
bytes32 data,
bytes32 signal
);
/// @notice Emitted when a signal is sent.
/// @param app The address that initiated the signal.
/// @param signal The signal (message) that was sent.
/// @param slot The location in storage where this signal is stored.
/// @param value The value of the signal.
event SignalSent(address app, bytes32 signal, bytes32 slot, bytes32 value);
/// @notice Emitted when an address is authorized or deauthorized.
/// @param addr The address to be authorized or deauthorized.
/// @param authorized True if authorized, false otherwise.
event Authorized(address indexed addr, bool authorized);
/// @notice Send a signal (message) by setting the storage slot to the same value as the signal
/// itself.
/// @param _signal The signal (message) to send.
/// @return slot_ The location in storage where this signal is stored.
function sendSignal(bytes32 _signal) external returns (bytes32 slot_);
/// @notice Sync a data from a remote chain locally as a signal. The signal is calculated
/// uniquely from chainId, kind, and data.
/// @param _chainId The remote chainId.
/// @param _kind A value to mark the data type.
/// @param _blockId The chain data's corresponding blockId
/// @param _chainData The remote data.
/// @return signal_ The signal for this chain data.
function syncChainData(
uint64 _chainId,
bytes32 _kind,
uint64 _blockId,
bytes32 _chainData
)
external
returns (bytes32 signal_);
/// @notice Verifies if a signal has been received on the target chain.
/// @param _chainId The identifier for the source chain from which the
/// signal originated.
/// @param _app The address that initiated the signal.
/// @param _signal The signal (message) to send.
/// @param _proof Merkle proof that the signal was persisted on the
/// source chain.
/// @return numCacheOps_ The number of newly cached items.
function proveSignalReceived(
uint64 _chainId,
address _app,
bytes32 _signal,
bytes calldata _proof
)
external
returns (uint256 numCacheOps_);
/// @notice Verifies if a signal has been received on the target chain.
/// This is the "readonly" version of proveSignalReceived.
/// @param _chainId The identifier for the source chain from which the
/// signal originated.
/// @param _app The address that initiated the signal.
/// @param _signal The signal (message) to send.
/// @param _proof Merkle proof that the signal was persisted on the
/// source chain.
function verifySignalReceived(
uint64 _chainId,
address _app,
bytes32 _signal,
bytes calldata _proof
)
external
view;
/// @notice Verifies if a particular signal has already been sent.
/// @param _app The address that initiated the signal.
/// @param _signal The signal (message) that was sent.
/// @return true if the signal has been sent, otherwise false.
function isSignalSent(address _app, bytes32 _signal) external view returns (bool);
/// @notice Checks if a chain data has been synced.
/// @param _chainId The remote chainId.
/// @param _kind A value to mark the data type.
/// @param _blockId The chain data's corresponding blockId
/// @param _chainData The remote data.
/// @return true if the data has been synced, otherwise false.
function isChainDataSynced(
uint64 _chainId,
bytes32 _kind,
uint64 _blockId,
bytes32 _chainData
)
external
view
returns (bool);
/// @notice Returns the given block's chain data.
/// @param _chainId Identifier of the chainId.
/// @param _kind A value to mark the data type.
/// @param _blockId The chain data's corresponding block id. If this value is 0, use the top
/// block id.
/// @return blockId_ The actual block id.
/// @return chainData_ The synced chain data.
function getSyncedChainData(
uint64 _chainId,
bytes32 _kind,
uint64 _blockId
)
external
view
returns (uint64 blockId_, bytes32 chainData_);
/// @notice Returns the data to be used for caching slot generation.
/// @param _chainId Identifier of the chainId.
/// @param _kind A value to mark the data type.
/// @param _blockId The chain data's corresponding block id. If this value is 0, use the top
/// block id.
/// @return signal_ The signal used for caching slot creation.
function signalForChainData(
uint64 _chainId,
bytes32 _kind,
uint64 _blockId
)
external
pure
returns (bytes32 signal_);
}
contracts/thirdparty/solmate/LibFixedPointMath.sol
// SPDX-License-Identifier: MIT
// Taken from the contract below, expWad() function tailored to Taiko's need
// https://github.com/transmissions11/solmate/blob/v7/src/utils/FixedPointMathLib.sol
pragma solidity 0.8.24;
library LibFixedPointMath {
uint128 public constant MAX_EXP_INPUT = 135_305_999_368_893_231_588;
uint256 public constant SCALING_FACTOR = 1e18; // For fixed point representation factor
error Overflow();
// Computes e^x in 1e18 fixed point.
function exp(int256 x) internal pure returns (int256 r) {
unchecked {
// Input x is in fixed point format, with scale factor 1/1e18.
// When the result is < 0.5 we return zero. This happens when
// x <= floor(log(0.5e18) * 1e18) ~ -42e18
if (x <= -42_139_678_854_452_767_551) {
return 0;
}
// When the result is > (2**255 - 1) / 1e18 we can not represent it
// as an int256. This happens when x >= floor(log((2**255 -1) /
// 1e18) * 1e18) ~ 135.
if (x >= 135_305_999_368_893_231_589) revert Overflow();
// x is now in the range (-42, 136) * 1e18. Convert to (-42, 136) *
// 2**96
// for more intermediate precision and a binary basis. This base
// conversion
// is a multiplication by 1e18 / 2**96 = 5**18 / 2**78.
x = (x << 78) / 5 ** 18;
// Reduce range of x to (-½ ln 2, ½ ln 2) * 2**96 by factoring out
// powers of two
// such that exp(x) = exp(x') * 2**k, where k is an integer.
// Solving this gives k = round(x / log(2)) and x' = x - k * log(2).
int256 k = ((x << 96) / 54_916_777_467_707_473_351_141_471_128 + 2 ** 95) >> 96;
x = x - k * 54_916_777_467_707_473_351_141_471_128;
// k is in the range [-61, 195].
// Evaluate using a (6, 7)-term rational approximation.
// p is made monic, we'll multiply by a scale factor later.
int256 y = x + 1_346_386_616_545_796_478_920_950_773_328;
y = ((y * x) >> 96) + 57_155_421_227_552_351_082_224_309_758_442;
int256 p = y + x - 94_201_549_194_550_492_254_356_042_504_812;
p = ((p * y) >> 96) + 28_719_021_644_029_726_153_956_944_680_412_240;
p = p * x + (4_385_272_521_454_847_904_659_076_985_693_276 << 96);
// We leave p in 2**192 basis so we don't need to scale it back up
// for the division.
int256 q = x - 2_855_989_394_907_223_263_936_484_059_900;
q = ((q * x) >> 96) + 50_020_603_652_535_783_019_961_831_881_945;
q = ((q * x) >> 96) - 533_845_033_583_426_703_283_633_433_725_380;
q = ((q * x) >> 96) + 3_604_857_256_930_695_427_073_651_918_091_429;
q = ((q * x) >> 96) - 14_423_608_567_350_463_180_887_372_962_807_573;
q = ((q * x) >> 96) + 26_449_188_498_355_588_339_934_803_723_976_023;
assembly {
// Div in assembly because solidity adds a zero check despite
// the `unchecked`.
// The q polynomial is known not to have zeros in the domain.
// (All roots are complex)
// No scaling required because p is already 2**96 too large.
r := sdiv(p, q)
}
// r should be in the range (0.09, 0.25) * 2**96.
// We now need to multiply r by
// * the scale factor s = ~6.031367120...,
// * the 2**k factor from the range reduction, and
// * the 1e18 / 2**96 factor for base conversion.
// We do all of this at once, with an intermediate result in 2**213
// basis
// so the final right shift is always by a positive amount.
r = int256(
(uint256(r) * 3_822_833_074_963_236_453_042_738_258_902_158_003_155_416_615_667)
>> uint256(195 - k)
);
}
}
}
node_modules/@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)
pragma solidity ^0.8.0;
import "./OwnableUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which provides access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership} and {acceptOwnership}.
*
* This module is used through inheritance. It will make available all functions
* from parent (Ownable).
*/
abstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {
address private _pendingOwner;
event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);
function __Ownable2Step_init() internal onlyInitializing {
__Ownable_init_unchained();
}
function __Ownable2Step_init_unchained() internal onlyInitializing {
}
/**
* @dev Returns the address of the pending owner.
*/
function pendingOwner() public view virtual returns (address) {
return _pendingOwner;
}
/**
* @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual override onlyOwner {
_pendingOwner = newOwner;
emit OwnershipTransferStarted(owner(), newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual override {
delete _pendingOwner;
super._transferOwnership(newOwner);
}
/**
* @dev The new owner accepts the ownership transfer.
*/
function acceptOwnership() public virtual {
address sender = _msgSender();
require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
_transferOwnership(sender);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
node_modules/@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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.
*
* By default, the owner account will be the one that deploys the contract. 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
function __Ownable_init() internal onlyInitializing {
__Ownable_init_unchained();
}
function __Ownable_init_unchained() internal onlyInitializing {
_transferOwnership(_msgSender());
}
/**
* @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 {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @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 {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_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);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```solidity
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
*
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized != type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
node_modules/@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @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, it is bubbled up by this
* function (like regular Solidity function calls).
*
* 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.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @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`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) 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(errorMessage);
}
}
}
node_modules/@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
pragma solidity ^0.8.0;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @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 ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
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;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
node_modules/@openzeppelin/contracts/interfaces/IERC1271.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC1271 standard signature validation method for
* contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
*
* _Available since v4.1._
*/
interface IERC1271 {
/**
* @dev Should return whether the signature provided is valid for the provided data
* @param hash Hash of the data to be signed
* @param signature Signature byte array associated with _data
*/
function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}
node_modules/@openzeppelin/contracts/interfaces/IERC1967.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1967.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
*
* _Available since v4.8.3._
*/
interface IERC1967 {
/**
* @dev Emitted when the implementation is upgraded.
*/
event Upgraded(address indexed implementation);
/**
* @dev Emitted when the admin account has changed.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Emitted when the beacon is changed.
*/
event BeaconUpgraded(address indexed beacon);
}
node_modules/@openzeppelin/contracts/interfaces/draft-IERC1822.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.0;
/**
* @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822Proxiable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}
node_modules/@openzeppelin/contracts/proxy/ERC1967/ERC1967Upgrade.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol)
pragma solidity ^0.8.2;
import "../beacon/IBeacon.sol";
import "../../interfaces/IERC1967.sol";
import "../../interfaces/draft-IERC1822.sol";
import "../../utils/Address.sol";
import "../../utils/StorageSlot.sol";
/**
* @dev This abstract contract provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
*
* _Available since v4.1._
*/
abstract contract ERC1967Upgrade is IERC1967 {
// This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation address.
*/
function _getImplementation() internal view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Perform implementation upgrade
*
* Emits an {Upgraded} event.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Perform implementation upgrade with additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
_upgradeTo(newImplementation);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(newImplementation, data);
}
}
/**
* @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal {
// Upgrades from old implementations will perform a rollback test. This test requires the new
// implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
// this special case will break upgrade paths from old UUPS implementation to new ones.
if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
_setImplementation(newImplementation);
} else {
try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
} catch {
revert("ERC1967Upgrade: new implementation is not UUPS");
}
_upgradeToAndCall(newImplementation, data, forceCall);
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Returns the current admin.
*/
function _getAdmin() internal view returns (address) {
return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 admin slot.
*/
function _setAdmin(address newAdmin) private {
require(newAdmin != address(0), "ERC1967: new admin is the zero address");
StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*/
function _changeAdmin(address newAdmin) internal {
emit AdminChanged(_getAdmin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
* This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
*/
bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
/**
* @dev Returns the current beacon.
*/
function _getBeacon() internal view returns (address) {
return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
}
/**
* @dev Stores a new beacon in the EIP1967 beacon slot.
*/
function _setBeacon(address newBeacon) private {
require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
require(
Address.isContract(IBeacon(newBeacon).implementation()),
"ERC1967: beacon implementation is not a contract"
);
StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
}
/**
* @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
* not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
*
* Emits a {BeaconUpgraded} event.
*/
function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {
_setBeacon(newBeacon);
emit BeaconUpgraded(newBeacon);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
}
}
}
node_modules/@openzeppelin/contracts/proxy/beacon/IBeacon.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
pragma solidity ^0.8.0;
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function implementation() external view returns (address);
}
node_modules/@openzeppelin/contracts/proxy/utils/UUPSUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol)
pragma solidity ^0.8.0;
import "../../interfaces/draft-IERC1822.sol";
import "../ERC1967/ERC1967Upgrade.sol";
/**
* @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
* {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
*
* A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
* reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
* `UUPSUpgradeable` with a custom implementation of upgrades.
*
* The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
*
* _Available since v4.1._
*/
abstract contract UUPSUpgradeable is IERC1822Proxiable, ERC1967Upgrade {
/// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
address private immutable __self = address(this);
/**
* @dev Check that the execution is being performed through a delegatecall call and that the execution context is
* a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
* for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
* function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
* fail.
*/
modifier onlyProxy() {
require(address(this) != __self, "Function must be called through delegatecall");
require(_getImplementation() == __self, "Function must be called through active proxy");
_;
}
/**
* @dev Check that the execution is not being performed through a delegate call. This allows a function to be
* callable on the implementing contract but not through proxies.
*/
modifier notDelegated() {
require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
_;
}
/**
* @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
* implementation. It is used to validate the implementation's compatibility when performing an upgrade.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
*/
function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
return _IMPLEMENTATION_SLOT;
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*
* @custom:oz-upgrades-unsafe-allow-reachable delegatecall
*/
function upgradeTo(address newImplementation) public virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
* encoded in `data`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*
* @custom:oz-upgrades-unsafe-allow-reachable delegatecall
*/
function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, data, true);
}
/**
* @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
* {upgradeTo} and {upgradeToAndCall}.
*
* Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
*
* ```solidity
* function _authorizeUpgrade(address) internal override onlyOwner {}
* ```
*/
function _authorizeUpgrade(address newImplementation) internal virtual;
}
node_modules/@openzeppelin/contracts/token/ERC20/IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
node_modules/@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*
* ==== Security Considerations
*
* There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
* expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
* considered as an intention to spend the allowance in any specific way. The second is that because permits have
* built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
* take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
* generally recommended is:
*
* ```solidity
* function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
* try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
* doThing(..., value);
* }
*
* function doThing(..., uint256 value) public {
* token.safeTransferFrom(msg.sender, address(this), value);
* ...
* }
* ```
*
* Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
* `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
* {SafeERC20-safeTransferFrom}).
*
* Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
* contracts should have entry points that don't rely on permit.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*
* CAUTION: See Security Considerations above.
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
node_modules/@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
* to be set to zero before setting it to a non-zero value, such as USDT.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}
node_modules/@openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @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, it is bubbled up by this
* function (like regular Solidity function calls).
*
* 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.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @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`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) 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(errorMessage);
}
}
}
node_modules/@openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```solidity
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
* _Available since v4.9 for `string`, `bytes`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct StringSlot {
string value;
}
struct BytesSlot {
bytes value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` with member `value` located at `slot`.
*/
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` representation of the string storage pointer `store`.
*/
function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
/**
* @dev Returns an `BytesSlot` with member `value` located at `slot`.
*/
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
*/
function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
}
node_modules/@openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
Compiler Settings
{"viaIR":false,"remappings":["@openzeppelin/contracts-upgradeable/=node_modules/@openzeppelin/contracts-upgradeable/","@openzeppelin/contracts/=node_modules/@openzeppelin/contracts/","solady/=node_modules/solady/","forge-std/=node_modules/forge-std/","ds-test/=node_modules/ds-test/src/","p256-verifier/=node_modules/p256-verifier/","forge-safe/=node_modules/forge-safe/"],"outputSelection":{"*":{"*":["*"],"":["*"]}},"optimizer":{"runs":200,"enabled":true},"metadata":{"useLiteralContent":false,"bytecodeHash":"ipfs","appendCBOR":true},"libraries":{},"evmVersion":"cancun"}
Contract ABI
[{"type":"error","name":"EIP1559_INVALID_PARAMS","inputs":[]},{"type":"error","name":"ETH_TRANSFER_FAILED","inputs":[]},{"type":"error","name":"FUNC_NOT_IMPLEMENTED","inputs":[]},{"type":"error","name":"INVALID_PAUSE_STATUS","inputs":[]},{"type":"error","name":"L2_BASEFEE_MISMATCH","inputs":[]},{"type":"error","name":"L2_INVALID_L1_CHAIN_ID","inputs":[]},{"type":"error","name":"L2_INVALID_L2_CHAIN_ID","inputs":[]},{"type":"error","name":"L2_INVALID_PARAM","inputs":[]},{"type":"error","name":"L2_INVALID_SENDER","inputs":[]},{"type":"error","name":"L2_PUBLIC_INPUT_HASH_MISMATCH","inputs":[]},{"type":"error","name":"L2_TOO_LATE","inputs":[]},{"type":"error","name":"Overflow","inputs":[]},{"type":"error","name":"REENTRANT_CALL","inputs":[]},{"type":"error","name":"RESOLVER_DENIED","inputs":[]},{"type":"error","name":"RESOLVER_INVALID_MANAGER","inputs":[]},{"type":"error","name":"RESOLVER_UNEXPECTED_CHAINID","inputs":[]},{"type":"error","name":"RESOLVER_ZERO_ADDR","inputs":[{"type":"uint64","name":"chainId","internalType":"uint64"},{"type":"bytes32","name":"name","internalType":"bytes32"}]},{"type":"error","name":"ZERO_ADDRESS","inputs":[]},{"type":"error","name":"ZERO_VALUE","inputs":[]},{"type":"event","name":"AdminChanged","inputs":[{"type":"address","name":"previousAdmin","internalType":"address","indexed":false},{"type":"address","name":"newAdmin","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"Anchored","inputs":[{"type":"bytes32","name":"parentHash","internalType":"bytes32","indexed":false},{"type":"uint64","name":"gasExcess","internalType":"uint64","indexed":false}],"anonymous":false},{"type":"event","name":"BeaconUpgraded","inputs":[{"type":"address","name":"beacon","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Initialized","inputs":[{"type":"uint8","name":"version","internalType":"uint8","indexed":false}],"anonymous":false},{"type":"event","name":"OwnershipTransferStarted","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Paused","inputs":[{"type":"address","name":"account","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"Unpaused","inputs":[{"type":"address","name":"account","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"Upgraded","inputs":[{"type":"address","name":"implementation","internalType":"address","indexed":true}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"GOLDEN_TOUCH_ADDRESS","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"acceptOwnership","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"addressManager","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"anchor","inputs":[{"type":"bytes32","name":"_l1BlockHash","internalType":"bytes32"},{"type":"bytes32","name":"_l1StateRoot","internalType":"bytes32"},{"type":"uint64","name":"_l1BlockId","internalType":"uint64"},{"type":"uint32","name":"_parentGasUsed","internalType":"uint32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint64","name":"","internalType":"uint64"}],"name":"gasExcess","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"basefee_","internalType":"uint256"},{"type":"uint64","name":"gasExcess_","internalType":"uint64"}],"name":"getBasefee","inputs":[{"type":"uint64","name":"_l1BlockId","internalType":"uint64"},{"type":"uint32","name":"_parentGasUsed","internalType":"uint32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"getBlockHash","inputs":[{"type":"uint64","name":"_blockId","internalType":"uint64"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple","name":"","internalType":"struct LibL2Config.Config","components":[{"type":"uint32","name":"gasTargetPerL1Block","internalType":"uint32"},{"type":"uint8","name":"basefeeAdjustmentQuotient","internalType":"uint8"}]}],"name":"getConfig","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"impl","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"inNonReentrant","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"init","inputs":[{"type":"address","name":"_owner","internalType":"address"},{"type":"address","name":"_addressManager","internalType":"address"},{"type":"uint64","name":"_l1ChainId","internalType":"uint64"},{"type":"uint64","name":"_gasExcess","internalType":"uint64"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint64","name":"","internalType":"uint64"}],"name":"l1ChainId","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"blockHash","internalType":"bytes32"}],"name":"l2Hashes","inputs":[{"type":"uint256","name":"blockId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint64","name":"","internalType":"uint64"}],"name":"lastSyncedBlock","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint64","name":"","internalType":"uint64"}],"name":"lastUnpausedAt","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"pause","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"paused","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"pendingOwner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"proxiableUUID","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"publicInputHash","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address payable"}],"name":"resolve","inputs":[{"type":"uint64","name":"_chainId","internalType":"uint64"},{"type":"bytes32","name":"_name","internalType":"bytes32"},{"type":"bool","name":"_allowZeroAddress","internalType":"bool"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address payable"}],"name":"resolve","inputs":[{"type":"bytes32","name":"_name","internalType":"bytes32"},{"type":"bool","name":"_allowZeroAddress","internalType":"bool"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"skipFeeCheck","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"unpause","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"upgradeTo","inputs":[{"type":"address","name":"newImplementation","internalType":"address"}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"upgradeToAndCall","inputs":[{"type":"address","name":"newImplementation","internalType":"address"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"withdraw","inputs":[{"type":"address","name":"_token","internalType":"address"},{"type":"address","name":"_to","internalType":"address"}]}]
Contract Creation Code
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