Address Contract Verified
Address
0x5a0dC8e73d6846f12630b8f7D5197FA8Cf669cfe
Balance
0 ETH
Nonce
1
Code Size
22056 bytes
Creator
0x9AbC5492...0702 at tx 0x158afc7d...c72c7a
Indexed Transactions
0
Contract Bytecode
22056 bytes
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Verified Source Code Full Match
Compiler: v0.8.25+commit.b61c2a91
EVM: cancun
Optimization: Yes (200 runs)
VaultTokenized.sol 111 lines
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.25;
import {Vault} from "./Vault.sol";
import {IVaultTokenized} from "../../interfaces/vault/IVaultTokenized.sol";
import {IVault} from "../../interfaces/vault/IVault.sol";
import {Checkpoints} from "../libraries/Checkpoints.sol";
import {ERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {SafeERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {Time} from "@openzeppelin/contracts/utils/types/Time.sol";
contract VaultTokenized is Vault, ERC20Upgradeable, IVaultTokenized {
using Checkpoints for Checkpoints.Trace256;
using SafeERC20 for IERC20;
constructor(
address delegatorFactory,
address slasherFactory,
address vaultFactory
) Vault(delegatorFactory, slasherFactory, vaultFactory) {}
/**
* @inheritdoc ERC20Upgradeable
*/
function decimals() public view override returns (uint8) {
return IERC20Metadata(collateral).decimals();
}
/**
* @inheritdoc ERC20Upgradeable
*/
function totalSupply() public view override returns (uint256) {
return activeShares();
}
/**
* @inheritdoc ERC20Upgradeable
*/
function balanceOf(
address account
) public view override returns (uint256) {
return activeSharesOf(account);
}
/**
* @inheritdoc IVault
*/
function deposit(
address onBehalfOf,
uint256 amount
) public override(Vault, IVault) returns (uint256 depositedAmount, uint256 mintedShares) {
(depositedAmount, mintedShares) = super.deposit(onBehalfOf, amount);
emit Transfer(address(0), onBehalfOf, mintedShares);
}
function _withdraw(
address claimer,
uint256 withdrawnAssets,
uint256 burnedShares
) internal override returns (uint256 mintedShares) {
mintedShares = super._withdraw(claimer, withdrawnAssets, burnedShares);
emit Transfer(msg.sender, address(0), burnedShares);
}
/**
* @inheritdoc ERC20Upgradeable
*/
function _update(address from, address to, uint256 value) internal override {
if (from == address(0)) {
// Overflow check required: The rest of the code assumes that totalSupply never overflows
_activeShares.push(Time.timestamp(), totalSupply() + value);
} else {
uint256 fromBalance = balanceOf(from);
if (fromBalance < value) {
revert ERC20InsufficientBalance(from, fromBalance, value);
}
unchecked {
// Overflow not possible: value <= fromBalance <= totalSupply.
_activeSharesOf[from].push(Time.timestamp(), fromBalance - value);
}
}
if (to == address(0)) {
unchecked {
// Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
_activeShares.push(Time.timestamp(), totalSupply() - value);
}
} else {
unchecked {
// Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
_activeSharesOf[to].push(Time.timestamp(), balanceOf(to) + value);
}
}
emit Transfer(from, to, value);
}
function _initialize(uint64 initialVersion, address owner_, bytes memory data) internal override {
(InitParamsTokenized memory params) = abi.decode(data, (InitParamsTokenized));
super._initialize(initialVersion, owner_, abi.encode(params.baseParams));
__ERC20_init(params.name, params.symbol);
}
}
Vault.sol 485 lines
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.25;
import {MigratableEntity} from "../common/MigratableEntity.sol";
import {VaultStorage} from "./VaultStorage.sol";
import {IBaseDelegator} from "../../interfaces/delegator/IBaseDelegator.sol";
import {IBaseSlasher} from "../../interfaces/slasher/IBaseSlasher.sol";
import {IRegistry} from "../../interfaces/common/IRegistry.sol";
import {IVault} from "../../interfaces/vault/IVault.sol";
import {Checkpoints} from "../libraries/Checkpoints.sol";
import {ERC4626Math} from "../libraries/ERC4626Math.sol";
import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import {SafeERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {Time} from "@openzeppelin/contracts/utils/types/Time.sol";
contract Vault is VaultStorage, MigratableEntity, AccessControlUpgradeable, IVault {
using Checkpoints for Checkpoints.Trace256;
using Math for uint256;
using SafeCast for uint256;
using SafeERC20 for IERC20;
constructor(
address delegatorFactory,
address slasherFactory,
address vaultFactory
) VaultStorage(delegatorFactory, slasherFactory) MigratableEntity(vaultFactory) {}
/**
* @inheritdoc IVault
*/
function isInitialized() external view returns (bool) {
return isDelegatorInitialized && isSlasherInitialized;
}
/**
* @inheritdoc IVault
*/
function totalStake() public view returns (uint256) {
uint256 epoch = currentEpoch();
return activeStake() + withdrawals[epoch] + withdrawals[epoch + 1];
}
/**
* @inheritdoc IVault
*/
function activeBalanceOfAt(address account, uint48 timestamp, bytes calldata hints) public view returns (uint256) {
ActiveBalanceOfHints memory activeBalanceOfHints;
if (hints.length > 0) {
activeBalanceOfHints = abi.decode(hints, (ActiveBalanceOfHints));
}
return ERC4626Math.previewRedeem(
activeSharesOfAt(account, timestamp, activeBalanceOfHints.activeSharesOfHint),
activeStakeAt(timestamp, activeBalanceOfHints.activeStakeHint),
activeSharesAt(timestamp, activeBalanceOfHints.activeSharesHint)
);
}
/**
* @inheritdoc IVault
*/
function activeBalanceOf(
address account
) public view returns (uint256) {
return ERC4626Math.previewRedeem(activeSharesOf(account), activeStake(), activeShares());
}
/**
* @inheritdoc IVault
*/
function withdrawalsOf(uint256 epoch, address account) public view returns (uint256) {
return
ERC4626Math.previewRedeem(withdrawalSharesOf[epoch][account], withdrawals[epoch], withdrawalShares[epoch]);
}
/**
* @inheritdoc IVault
*/
function slashableBalanceOf(
address account
) external view returns (uint256) {
uint256 epoch = currentEpoch();
return activeBalanceOf(account) + withdrawalsOf(epoch, account) + withdrawalsOf(epoch + 1, account);
}
/**
* @inheritdoc IVault
*/
function deposit(
address onBehalfOf,
uint256 amount
) public virtual nonReentrant returns (uint256 depositedAmount, uint256 mintedShares) {
if (onBehalfOf == address(0)) {
revert InvalidOnBehalfOf();
}
if (depositWhitelist && !isDepositorWhitelisted[msg.sender]) {
revert NotWhitelistedDepositor();
}
uint256 balanceBefore = IERC20(collateral).balanceOf(address(this));
IERC20(collateral).safeTransferFrom(msg.sender, address(this), amount);
depositedAmount = IERC20(collateral).balanceOf(address(this)) - balanceBefore;
if (depositedAmount == 0) {
revert InsufficientDeposit();
}
if (isDepositLimit && activeStake() + depositedAmount > depositLimit) {
revert DepositLimitReached();
}
uint256 activeStake_ = activeStake();
uint256 activeShares_ = activeShares();
mintedShares = ERC4626Math.previewDeposit(depositedAmount, activeShares_, activeStake_);
_activeStake.push(Time.timestamp(), activeStake_ + depositedAmount);
_activeShares.push(Time.timestamp(), activeShares_ + mintedShares);
_activeSharesOf[onBehalfOf].push(Time.timestamp(), activeSharesOf(onBehalfOf) + mintedShares);
emit Deposit(msg.sender, onBehalfOf, depositedAmount, mintedShares);
}
/**
* @inheritdoc IVault
*/
function withdraw(
address claimer,
uint256 amount
) external nonReentrant returns (uint256 burnedShares, uint256 mintedShares) {
if (claimer == address(0)) {
revert InvalidClaimer();
}
if (amount == 0) {
revert InsufficientWithdrawal();
}
burnedShares = ERC4626Math.previewWithdraw(amount, activeShares(), activeStake());
if (burnedShares > activeSharesOf(msg.sender)) {
revert TooMuchWithdraw();
}
mintedShares = _withdraw(claimer, amount, burnedShares);
}
/**
* @inheritdoc IVault
*/
function redeem(
address claimer,
uint256 shares
) external nonReentrant returns (uint256 withdrawnAssets, uint256 mintedShares) {
if (claimer == address(0)) {
revert InvalidClaimer();
}
if (shares > activeSharesOf(msg.sender)) {
revert TooMuchRedeem();
}
withdrawnAssets = ERC4626Math.previewRedeem(shares, activeStake(), activeShares());
if (withdrawnAssets == 0) {
revert InsufficientRedemption();
}
mintedShares = _withdraw(claimer, withdrawnAssets, shares);
}
/**
* @inheritdoc IVault
*/
function claim(address recipient, uint256 epoch) external nonReentrant returns (uint256 amount) {
if (recipient == address(0)) {
revert InvalidRecipient();
}
amount = _claim(epoch);
IERC20(collateral).safeTransfer(recipient, amount);
emit Claim(msg.sender, recipient, epoch, amount);
}
/**
* @inheritdoc IVault
*/
function claimBatch(address recipient, uint256[] calldata epochs) external nonReentrant returns (uint256 amount) {
if (recipient == address(0)) {
revert InvalidRecipient();
}
uint256 length = epochs.length;
if (length == 0) {
revert InvalidLengthEpochs();
}
for (uint256 i; i < length; ++i) {
amount += _claim(epochs[i]);
}
IERC20(collateral).safeTransfer(recipient, amount);
emit ClaimBatch(msg.sender, recipient, epochs, amount);
}
/**
* @inheritdoc IVault
*/
function onSlash(uint256 amount, uint48 captureTimestamp) external nonReentrant returns (uint256 slashedAmount) {
if (msg.sender != slasher) {
revert NotSlasher();
}
uint256 currentEpoch_ = currentEpoch();
uint256 captureEpoch = epochAt(captureTimestamp);
if ((currentEpoch_ > 0 && captureEpoch < currentEpoch_ - 1) || captureEpoch > currentEpoch_) {
revert InvalidCaptureEpoch();
}
uint256 activeStake_ = activeStake();
uint256 nextWithdrawals = withdrawals[currentEpoch_ + 1];
if (captureEpoch == currentEpoch_) {
uint256 slashableStake = activeStake_ + nextWithdrawals;
slashedAmount = Math.min(amount, slashableStake);
if (slashedAmount > 0) {
uint256 activeSlashed = slashedAmount.mulDiv(activeStake_, slashableStake);
uint256 nextWithdrawalsSlashed = slashedAmount - activeSlashed;
_activeStake.push(Time.timestamp(), activeStake_ - activeSlashed);
withdrawals[captureEpoch + 1] = nextWithdrawals - nextWithdrawalsSlashed;
}
} else {
uint256 withdrawals_ = withdrawals[currentEpoch_];
uint256 slashableStake = activeStake_ + withdrawals_ + nextWithdrawals;
slashedAmount = Math.min(amount, slashableStake);
if (slashedAmount > 0) {
uint256 activeSlashed = slashedAmount.mulDiv(activeStake_, slashableStake);
uint256 nextWithdrawalsSlashed = slashedAmount.mulDiv(nextWithdrawals, slashableStake);
uint256 withdrawalsSlashed = slashedAmount - activeSlashed - nextWithdrawalsSlashed;
if (withdrawals_ < withdrawalsSlashed) {
nextWithdrawalsSlashed += withdrawalsSlashed - withdrawals_;
withdrawalsSlashed = withdrawals_;
}
_activeStake.push(Time.timestamp(), activeStake_ - activeSlashed);
withdrawals[currentEpoch_ + 1] = nextWithdrawals - nextWithdrawalsSlashed;
withdrawals[currentEpoch_] = withdrawals_ - withdrawalsSlashed;
}
}
if (slashedAmount > 0) {
IERC20(collateral).safeTransfer(burner, slashedAmount);
}
emit OnSlash(amount, captureTimestamp, slashedAmount);
}
/**
* @inheritdoc IVault
*/
function setDepositWhitelist(
bool status
) external nonReentrant onlyRole(DEPOSIT_WHITELIST_SET_ROLE) {
if (depositWhitelist == status) {
revert AlreadySet();
}
depositWhitelist = status;
emit SetDepositWhitelist(status);
}
/**
* @inheritdoc IVault
*/
function setDepositorWhitelistStatus(
address account,
bool status
) external nonReentrant onlyRole(DEPOSITOR_WHITELIST_ROLE) {
if (account == address(0)) {
revert InvalidAccount();
}
if (isDepositorWhitelisted[account] == status) {
revert AlreadySet();
}
isDepositorWhitelisted[account] = status;
emit SetDepositorWhitelistStatus(account, status);
}
/**
* @inheritdoc IVault
*/
function setIsDepositLimit(
bool status
) external nonReentrant onlyRole(IS_DEPOSIT_LIMIT_SET_ROLE) {
if (isDepositLimit == status) {
revert AlreadySet();
}
isDepositLimit = status;
emit SetIsDepositLimit(status);
}
/**
* @inheritdoc IVault
*/
function setDepositLimit(
uint256 limit
) external nonReentrant onlyRole(DEPOSIT_LIMIT_SET_ROLE) {
if (depositLimit == limit) {
revert AlreadySet();
}
depositLimit = limit;
emit SetDepositLimit(limit);
}
function setDelegator(
address delegator_
) external nonReentrant {
if (isDelegatorInitialized) {
revert DelegatorAlreadyInitialized();
}
if (!IRegistry(DELEGATOR_FACTORY).isEntity(delegator_)) {
revert NotDelegator();
}
if (IBaseDelegator(delegator_).vault() != address(this)) {
revert InvalidDelegator();
}
delegator = delegator_;
isDelegatorInitialized = true;
emit SetDelegator(delegator_);
}
function setSlasher(
address slasher_
) external nonReentrant {
if (isSlasherInitialized) {
revert SlasherAlreadyInitialized();
}
if (slasher_ != address(0)) {
if (!IRegistry(SLASHER_FACTORY).isEntity(slasher_)) {
revert NotSlasher();
}
if (IBaseSlasher(slasher_).vault() != address(this)) {
revert InvalidSlasher();
}
slasher = slasher_;
}
isSlasherInitialized = true;
emit SetSlasher(slasher_);
}
function _withdraw(
address claimer,
uint256 withdrawnAssets,
uint256 burnedShares
) internal virtual returns (uint256 mintedShares) {
_activeSharesOf[msg.sender].push(Time.timestamp(), activeSharesOf(msg.sender) - burnedShares);
_activeShares.push(Time.timestamp(), activeShares() - burnedShares);
_activeStake.push(Time.timestamp(), activeStake() - withdrawnAssets);
uint256 epoch = currentEpoch() + 1;
uint256 withdrawals_ = withdrawals[epoch];
uint256 withdrawalsShares_ = withdrawalShares[epoch];
mintedShares = ERC4626Math.previewDeposit(withdrawnAssets, withdrawalsShares_, withdrawals_);
withdrawals[epoch] = withdrawals_ + withdrawnAssets;
withdrawalShares[epoch] = withdrawalsShares_ + mintedShares;
withdrawalSharesOf[epoch][claimer] += mintedShares;
emit Withdraw(msg.sender, claimer, withdrawnAssets, burnedShares, mintedShares);
}
function _claim(
uint256 epoch
) internal returns (uint256 amount) {
if (epoch >= currentEpoch()) {
revert InvalidEpoch();
}
if (isWithdrawalsClaimed[epoch][msg.sender]) {
revert AlreadyClaimed();
}
amount = withdrawalsOf(epoch, msg.sender);
if (amount == 0) {
revert InsufficientClaim();
}
isWithdrawalsClaimed[epoch][msg.sender] = true;
}
function _initialize(uint64, address, bytes memory data) internal virtual override {
(InitParams memory params) = abi.decode(data, (InitParams));
if (params.collateral == address(0)) {
revert InvalidCollateral();
}
if (params.epochDuration == 0) {
revert InvalidEpochDuration();
}
if (params.defaultAdminRoleHolder == address(0)) {
if (params.depositWhitelistSetRoleHolder == address(0)) {
if (params.depositWhitelist) {
if (params.depositorWhitelistRoleHolder == address(0)) {
revert MissingRoles();
}
} else if (params.depositorWhitelistRoleHolder != address(0)) {
revert MissingRoles();
}
}
if (params.isDepositLimitSetRoleHolder == address(0)) {
if (params.isDepositLimit) {
if (params.depositLimit == 0 && params.depositLimitSetRoleHolder == address(0)) {
revert MissingRoles();
}
} else if (params.depositLimit != 0 || params.depositLimitSetRoleHolder != address(0)) {
revert MissingRoles();
}
}
}
collateral = params.collateral;
burner = params.burner;
epochDurationInit = Time.timestamp();
epochDuration = params.epochDuration;
depositWhitelist = params.depositWhitelist;
isDepositLimit = params.isDepositLimit;
depositLimit = params.depositLimit;
if (params.defaultAdminRoleHolder != address(0)) {
_grantRole(DEFAULT_ADMIN_ROLE, params.defaultAdminRoleHolder);
}
if (params.depositWhitelistSetRoleHolder != address(0)) {
_grantRole(DEPOSIT_WHITELIST_SET_ROLE, params.depositWhitelistSetRoleHolder);
}
if (params.depositorWhitelistRoleHolder != address(0)) {
_grantRole(DEPOSITOR_WHITELIST_ROLE, params.depositorWhitelistRoleHolder);
}
if (params.isDepositLimitSetRoleHolder != address(0)) {
_grantRole(IS_DEPOSIT_LIMIT_SET_ROLE, params.isDepositLimitSetRoleHolder);
}
if (params.depositLimitSetRoleHolder != address(0)) {
_grantRole(DEPOSIT_LIMIT_SET_ROLE, params.depositLimitSetRoleHolder);
}
}
function _migrate(uint64, /* oldVersion */ uint64, /* newVersion */ bytes calldata /* data */ ) internal override {
revert();
}
}
IVaultTokenized.sol 18 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IVault} from "./IVault.sol";
interface IVaultTokenized is IVault {
/**
* @notice Initial parameters needed for a tokenized vault deployment.
* @param baseParams initial parameters needed for a vault deployment (InitParams)
* @param name name for the ERC20 tokenized vault
* @param symbol symbol for the ERC20 tokenized vault
*/
struct InitParamsTokenized {
InitParams baseParams;
string name;
string symbol;
}
}
IVault.sol 319 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IMigratableEntity} from "../common/IMigratableEntity.sol";
import {IVaultStorage} from "./IVaultStorage.sol";
interface IVault is IMigratableEntity, IVaultStorage {
error AlreadyClaimed();
error AlreadySet();
error DelegatorAlreadyInitialized();
error DepositLimitReached();
error InsufficientClaim();
error InsufficientDeposit();
error InsufficientRedemption();
error InsufficientWithdrawal();
error InvalidAccount();
error InvalidCaptureEpoch();
error InvalidClaimer();
error InvalidCollateral();
error InvalidDelegator();
error InvalidEpoch();
error InvalidEpochDuration();
error InvalidLengthEpochs();
error InvalidOnBehalfOf();
error InvalidRecipient();
error InvalidSlasher();
error MissingRoles();
error NotDelegator();
error NotSlasher();
error NotWhitelistedDepositor();
error SlasherAlreadyInitialized();
error TooMuchRedeem();
error TooMuchWithdraw();
/**
* @notice Initial parameters needed for a vault deployment.
* @param collateral vault's underlying collateral
* @param burner vault's burner to issue debt to (e.g., 0xdEaD or some unwrapper contract)
* @param epochDuration duration of the vault epoch (it determines sync points for withdrawals)
* @param depositWhitelist if enabling deposit whitelist
* @param isDepositLimit if enabling deposit limit
* @param depositLimit deposit limit (maximum amount of the collateral that can be in the vault simultaneously)
* @param defaultAdminRoleHolder address of the initial DEFAULT_ADMIN_ROLE holder
* @param depositWhitelistSetRoleHolder address of the initial DEPOSIT_WHITELIST_SET_ROLE holder
* @param depositorWhitelistRoleHolder address of the initial DEPOSITOR_WHITELIST_ROLE holder
* @param isDepositLimitSetRoleHolder address of the initial IS_DEPOSIT_LIMIT_SET_ROLE holder
* @param depositLimitSetRoleHolder address of the initial DEPOSIT_LIMIT_SET_ROLE holder
*/
struct InitParams {
address collateral;
address burner;
uint48 epochDuration;
bool depositWhitelist;
bool isDepositLimit;
uint256 depositLimit;
address defaultAdminRoleHolder;
address depositWhitelistSetRoleHolder;
address depositorWhitelistRoleHolder;
address isDepositLimitSetRoleHolder;
address depositLimitSetRoleHolder;
}
/**
* @notice Hints for an active balance.
* @param activeSharesOfHint hint for the active shares of checkpoint
* @param activeStakeHint hint for the active stake checkpoint
* @param activeSharesHint hint for the active shares checkpoint
*/
struct ActiveBalanceOfHints {
bytes activeSharesOfHint;
bytes activeStakeHint;
bytes activeSharesHint;
}
/**
* @notice Emitted when a deposit is made.
* @param depositor account that made the deposit
* @param onBehalfOf account the deposit was made on behalf of
* @param amount amount of the collateral deposited
* @param shares amount of the active shares minted
*/
event Deposit(address indexed depositor, address indexed onBehalfOf, uint256 amount, uint256 shares);
/**
* @notice Emitted when a withdrawal is made.
* @param withdrawer account that made the withdrawal
* @param claimer account that needs to claim the withdrawal
* @param amount amount of the collateral withdrawn
* @param burnedShares amount of the active shares burned
* @param mintedShares amount of the epoch withdrawal shares minted
*/
event Withdraw(
address indexed withdrawer, address indexed claimer, uint256 amount, uint256 burnedShares, uint256 mintedShares
);
/**
* @notice Emitted when a claim is made.
* @param claimer account that claimed
* @param recipient account that received the collateral
* @param epoch epoch the collateral was claimed for
* @param amount amount of the collateral claimed
*/
event Claim(address indexed claimer, address indexed recipient, uint256 epoch, uint256 amount);
/**
* @notice Emitted when a batch claim is made.
* @param claimer account that claimed
* @param recipient account that received the collateral
* @param epochs epochs the collateral was claimed for
* @param amount amount of the collateral claimed
*/
event ClaimBatch(address indexed claimer, address indexed recipient, uint256[] epochs, uint256 amount);
/**
* @notice Emitted when a slash happens.
* @param amount amount of the collateral to slash
* @param captureTimestamp time point when the stake was captured
* @param slashedAmount real amount of the collateral slashed
*/
event OnSlash(uint256 amount, uint48 captureTimestamp, uint256 slashedAmount);
/**
* @notice Emitted when a deposit whitelist status is enabled/disabled.
* @param status if enabled deposit whitelist
*/
event SetDepositWhitelist(bool status);
/**
* @notice Emitted when a depositor whitelist status is set.
* @param account account for which the whitelist status is set
* @param status if whitelisted the account
*/
event SetDepositorWhitelistStatus(address indexed account, bool status);
/**
* @notice Emitted when a deposit limit status is enabled/disabled.
* @param status if enabled deposit limit
*/
event SetIsDepositLimit(bool status);
/**
* @notice Emitted when a deposit limit is set.
* @param limit deposit limit (maximum amount of the collateral that can be in the vault simultaneously)
*/
event SetDepositLimit(uint256 limit);
/**
* @notice Emitted when a delegator is set.
* @param delegator vault's delegator to delegate the stake to networks and operators
* @dev Can be set only once.
*/
event SetDelegator(address indexed delegator);
/**
* @notice Emitted when a slasher is set.
* @param slasher vault's slasher to provide a slashing mechanism to networks
* @dev Can be set only once.
*/
event SetSlasher(address indexed slasher);
/**
* @notice Check if the vault is fully initialized (a delegator and a slasher are set).
* @return if the vault is fully initialized
*/
function isInitialized() external view returns (bool);
/**
* @notice Get a total amount of the collateral that can be slashed.
* @return total amount of the slashable collateral
*/
function totalStake() external view returns (uint256);
/**
* @notice Get an active balance for a particular account at a given timestamp using hints.
* @param account account to get the active balance for
* @param timestamp time point to get the active balance for the account at
* @param hints hints for checkpoints' indexes
* @return active balance for the account at the timestamp
*/
function activeBalanceOfAt(
address account,
uint48 timestamp,
bytes calldata hints
) external view returns (uint256);
/**
* @notice Get an active balance for a particular account.
* @param account account to get the active balance for
* @return active balance for the account
*/
function activeBalanceOf(
address account
) external view returns (uint256);
/**
* @notice Get withdrawals for a particular account at a given epoch (zero if claimed).
* @param epoch epoch to get the withdrawals for the account at
* @param account account to get the withdrawals for
* @return withdrawals for the account at the epoch
*/
function withdrawalsOf(uint256 epoch, address account) external view returns (uint256);
/**
* @notice Get a total amount of the collateral that can be slashed for a given account.
* @param account account to get the slashable collateral for
* @return total amount of the account's slashable collateral
*/
function slashableBalanceOf(
address account
) external view returns (uint256);
/**
* @notice Deposit collateral into the vault.
* @param onBehalfOf account the deposit is made on behalf of
* @param amount amount of the collateral to deposit
* @return depositedAmount real amount of the collateral deposited
* @return mintedShares amount of the active shares minted
*/
function deposit(
address onBehalfOf,
uint256 amount
) external returns (uint256 depositedAmount, uint256 mintedShares);
/**
* @notice Withdraw collateral from the vault (it will be claimable after the next epoch).
* @param claimer account that needs to claim the withdrawal
* @param amount amount of the collateral to withdraw
* @return burnedShares amount of the active shares burned
* @return mintedShares amount of the epoch withdrawal shares minted
*/
function withdraw(address claimer, uint256 amount) external returns (uint256 burnedShares, uint256 mintedShares);
/**
* @notice Redeem collateral from the vault (it will be claimable after the next epoch).
* @param claimer account that needs to claim the withdrawal
* @param shares amount of the active shares to redeem
* @return withdrawnAssets amount of the collateral withdrawn
* @return mintedShares amount of the epoch withdrawal shares minted
*/
function redeem(address claimer, uint256 shares) external returns (uint256 withdrawnAssets, uint256 mintedShares);
/**
* @notice Claim collateral from the vault.
* @param recipient account that receives the collateral
* @param epoch epoch to claim the collateral for
* @return amount amount of the collateral claimed
*/
function claim(address recipient, uint256 epoch) external returns (uint256 amount);
/**
* @notice Claim collateral from the vault for multiple epochs.
* @param recipient account that receives the collateral
* @param epochs epochs to claim the collateral for
* @return amount amount of the collateral claimed
*/
function claimBatch(address recipient, uint256[] calldata epochs) external returns (uint256 amount);
/**
* @notice Slash callback for burning collateral.
* @param amount amount to slash
* @param captureTimestamp time point when the stake was captured
* @return slashedAmount real amount of the collateral slashed
* @dev Only the slasher can call this function.
*/
function onSlash(uint256 amount, uint48 captureTimestamp) external returns (uint256 slashedAmount);
/**
* @notice Enable/disable deposit whitelist.
* @param status if enabling deposit whitelist
* @dev Only a DEPOSIT_WHITELIST_SET_ROLE holder can call this function.
*/
function setDepositWhitelist(
bool status
) external;
/**
* @notice Set a depositor whitelist status.
* @param account account for which the whitelist status is set
* @param status if whitelisting the account
* @dev Only a DEPOSITOR_WHITELIST_ROLE holder can call this function.
*/
function setDepositorWhitelistStatus(address account, bool status) external;
/**
* @notice Enable/disable deposit limit.
* @param status if enabling deposit limit
* @dev Only a IS_DEPOSIT_LIMIT_SET_ROLE holder can call this function.
*/
function setIsDepositLimit(
bool status
) external;
/**
* @notice Set a deposit limit.
* @param limit deposit limit (maximum amount of the collateral that can be in the vault simultaneously)
* @dev Only a DEPOSIT_LIMIT_SET_ROLE holder can call this function.
*/
function setDepositLimit(
uint256 limit
) external;
/**
* @notice Set a delegator.
* @param delegator vault's delegator to delegate the stake to networks and operators
* @dev Can be set only once.
*/
function setDelegator(
address delegator
) external;
/**
* @notice Set a slasher.
* @param slasher vault's slasher to provide a slashing mechanism to networks
* @dev Can be set only once.
*/
function setSlasher(
address slasher
) external;
}
Checkpoints.sol 393 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {Checkpoints as OZCheckpoints} from "@openzeppelin/contracts/utils/structs/Checkpoints.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
/**
* @dev This library defines the `Trace*` struct, for checkpointing values as they change at different points in
* time, and later looking up past values by key.
*/
library Checkpoints {
using OZCheckpoints for OZCheckpoints.Trace208;
error SystemCheckpoint();
struct Trace208 {
OZCheckpoints.Trace208 _trace;
}
struct Checkpoint208 {
uint48 _key;
uint208 _value;
}
struct Trace256 {
OZCheckpoints.Trace208 _trace;
uint256[] _values;
}
struct Checkpoint256 {
uint48 _key;
uint256 _value;
}
/**
* @dev Pushes a (`key`, `value`) pair into a Trace208 so that it is stored as the checkpoint.
*
* Returns previous value and new value.
*/
function push(Trace208 storage self, uint48 key, uint208 value) internal returns (uint208, uint208) {
return self._trace.push(key, value);
}
/**
* @dev Returns the value in the last (most recent) checkpoint with a key lower or equal than the search key, or zero
* if there is none.
*/
function upperLookupRecent(Trace208 storage self, uint48 key) internal view returns (uint208) {
return self._trace.upperLookupRecent(key);
}
/**
* @dev Returns the value in the last (most recent) checkpoint with a key lower or equal than the search key, or zero
* if there is none.
*
* NOTE: This is a variant of {upperLookupRecent} that can be optimized by getting the hint
* (index of the checkpoint with a key lower or equal than the search key).
*/
function upperLookupRecent(Trace208 storage self, uint48 key, bytes memory hint_) internal view returns (uint208) {
if (hint_.length == 0) {
return upperLookupRecent(self, key);
}
uint32 hint = abi.decode(hint_, (uint32));
Checkpoint208 memory checkpoint = at(self, hint);
if (checkpoint._key == key) {
return checkpoint._value;
}
if (checkpoint._key < key && (hint == length(self) - 1 || at(self, hint + 1)._key > key)) {
return checkpoint._value;
}
return upperLookupRecent(self, key);
}
/**
* @dev Returns whether there is a checkpoint with a key lower or equal than the search key in the structure (i.e. it is not empty),
* and if so the key and value in the checkpoint, and its position in the trace.
*/
function upperLookupRecentCheckpoint(
Trace208 storage self,
uint48 key
) internal view returns (bool, uint48, uint208, uint32) {
uint256 len = self._trace._checkpoints.length;
uint256 low = 0;
uint256 high = len;
if (len > 5) {
uint256 mid = len - Math.sqrt(len);
if (key < _unsafeAccess(self._trace._checkpoints, mid)._key) {
high = mid;
} else {
low = mid + 1;
}
}
uint256 pos = _upperBinaryLookup(self._trace._checkpoints, key, low, high);
if (pos == 0) {
return (false, 0, 0, 0);
}
OZCheckpoints.Checkpoint208 memory checkpoint = _unsafeAccess(self._trace._checkpoints, pos - 1);
return (true, checkpoint._key, checkpoint._value, uint32(pos - 1));
}
/**
* @dev Returns whether there is a checkpoint with a key lower or equal than the search key in the structure (i.e. it is not empty),
* and if so the key and value in the checkpoint, and its position in the trace.
*
* NOTE: This is a variant of {upperLookupRecentCheckpoint} that can be optimized by getting the hint
* (index of the checkpoint with a key lower or equal than the search key).
*/
function upperLookupRecentCheckpoint(
Trace208 storage self,
uint48 key,
bytes memory hint_
) internal view returns (bool, uint48, uint208, uint32) {
if (hint_.length == 0) {
return upperLookupRecentCheckpoint(self, key);
}
uint32 hint = abi.decode(hint_, (uint32));
Checkpoint208 memory checkpoint = at(self, hint);
if (checkpoint._key == key) {
return (true, checkpoint._key, checkpoint._value, hint);
}
if (checkpoint._key < key && (hint == length(self) - 1 || at(self, hint + 1)._key > key)) {
return (true, checkpoint._key, checkpoint._value, hint);
}
return upperLookupRecentCheckpoint(self, key);
}
/**
* @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.
*/
function latest(
Trace208 storage self
) internal view returns (uint208) {
return self._trace.latest();
}
/**
* @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value
* in the most recent checkpoint.
*/
function latestCheckpoint(
Trace208 storage self
) internal view returns (bool, uint48, uint208) {
return self._trace.latestCheckpoint();
}
/**
* @dev Returns a total number of checkpoints.
*/
function length(
Trace208 storage self
) internal view returns (uint256) {
return self._trace.length();
}
/**
* @dev Returns checkpoint at a given position.
*/
function at(Trace208 storage self, uint32 pos) internal view returns (Checkpoint208 memory) {
OZCheckpoints.Checkpoint208 memory checkpoint = self._trace.at(pos);
return Checkpoint208({_key: checkpoint._key, _value: checkpoint._value});
}
/**
* @dev Pops the last (most recent) checkpoint.
*/
function pop(
Trace208 storage self
) internal returns (uint208 value) {
value = self._trace.latest();
self._trace._checkpoints.pop();
}
/**
* @dev Pushes a (`key`, `value`) pair into a Trace256 so that it is stored as the checkpoint.
*
* Returns previous value and new value.
*/
function push(Trace256 storage self, uint48 key, uint256 value) internal returns (uint256, uint256) {
if (self._values.length == 0) {
self._values.push(0);
}
(bool exists, uint48 lastKey,) = self._trace.latestCheckpoint();
uint256 len = self._values.length;
uint256 lastValue = latest(self);
if (exists && key == lastKey) {
self._values[len - 1] = value;
} else {
self._trace.push(key, uint208(len));
self._values.push(value);
}
return (lastValue, value);
}
/**
* @dev Returns the value in the last (most recent) checkpoint with a key lower or equal than the search key, or zero
* if there is none.
*/
function upperLookupRecent(Trace256 storage self, uint48 key) internal view returns (uint256) {
uint208 idx = self._trace.upperLookupRecent(key);
return idx > 0 ? self._values[idx] : 0;
}
/**
* @dev Returns the value in the last (most recent) checkpoint with a key lower or equal than the search key, or zero
* if there is none.
*
* NOTE: This is a variant of {upperLookupRecent} that can be optimized by getting the hint
* (index of the checkpoint with a key lower or equal than the search key).
*/
function upperLookupRecent(Trace256 storage self, uint48 key, bytes memory hint_) internal view returns (uint256) {
if (hint_.length == 0) {
return upperLookupRecent(self, key);
}
uint32 hint = abi.decode(hint_, (uint32));
Checkpoint256 memory checkpoint = at(self, hint);
if (checkpoint._key == key) {
return checkpoint._value;
}
if (checkpoint._key < key && (hint == length(self) - 1 || at(self, hint + 1)._key > key)) {
return checkpoint._value;
}
return upperLookupRecent(self, key);
}
/**
* @dev Returns whether there is a checkpoint with a key lower or equal than the search key in the structure (i.e. it is not empty),
* and if so the key and value in the checkpoint, and its position in the trace.
*/
function upperLookupRecentCheckpoint(
Trace256 storage self,
uint48 key
) internal view returns (bool, uint48, uint256, uint32) {
uint256 len = self._trace._checkpoints.length;
uint256 low = 0;
uint256 high = len;
if (len > 5) {
uint256 mid = len - Math.sqrt(len);
if (key < _unsafeAccess(self._trace._checkpoints, mid)._key) {
high = mid;
} else {
low = mid + 1;
}
}
uint256 pos = _upperBinaryLookup(self._trace._checkpoints, key, low, high);
if (pos == 0) {
return (false, 0, 0, 0);
}
OZCheckpoints.Checkpoint208 memory checkpoint = _unsafeAccess(self._trace._checkpoints, pos - 1);
return (true, checkpoint._key, self._values[checkpoint._value], uint32(pos - 1));
}
/**
* @dev Returns whether there is a checkpoint with a key lower or equal than the search key in the structure (i.e. it is not empty),
* and if so the key and value in the checkpoint, and its position in the trace.
*
* NOTE: This is a variant of {upperLookupRecentCheckpoint} that can be optimized by getting the hint
* (index of the checkpoint with a key lower or equal than the search key).
*/
function upperLookupRecentCheckpoint(
Trace256 storage self,
uint48 key,
bytes memory hint_
) internal view returns (bool, uint48, uint256, uint32) {
if (hint_.length == 0) {
return upperLookupRecentCheckpoint(self, key);
}
uint32 hint = abi.decode(hint_, (uint32));
Checkpoint256 memory checkpoint = at(self, hint);
if (checkpoint._key == key) {
return (true, checkpoint._key, checkpoint._value, hint);
}
if (checkpoint._key < key && (hint == length(self) - 1 || at(self, hint + 1)._key > key)) {
return (true, checkpoint._key, checkpoint._value, hint);
}
return upperLookupRecentCheckpoint(self, key);
}
/**
* @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.
*/
function latest(
Trace256 storage self
) internal view returns (uint256) {
uint208 idx = self._trace.latest();
return idx > 0 ? self._values[idx] : 0;
}
/**
* @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value
* in the most recent checkpoint.
*/
function latestCheckpoint(
Trace256 storage self
) internal view returns (bool exists, uint48 _key, uint256 _value) {
uint256 idx;
(exists, _key, idx) = self._trace.latestCheckpoint();
_value = exists ? self._values[idx] : 0;
}
/**
* @dev Returns a total number of checkpoints.
*/
function length(
Trace256 storage self
) internal view returns (uint256) {
return self._trace.length();
}
/**
* @dev Returns checkpoint at a given position.
*/
function at(Trace256 storage self, uint32 pos) internal view returns (Checkpoint256 memory) {
OZCheckpoints.Checkpoint208 memory checkpoint = self._trace.at(pos);
return Checkpoint256({_key: checkpoint._key, _value: self._values[checkpoint._value]});
}
/**
* @dev Pops the last (most recent) checkpoint.
*/
function pop(
Trace256 storage self
) internal returns (uint256 value) {
uint208 idx = self._trace.latest();
if (idx == 0) {
revert SystemCheckpoint();
}
value = self._values[idx];
self._trace._checkpoints.pop();
self._values.pop();
}
/**
* @dev Return the index of the last (most recent) checkpoint with a key lower or equal than the search key, or `high`
* if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive
* `high`.
*
* WARNING: `high` should not be greater than the array's length.
*/
function _upperBinaryLookup(
OZCheckpoints.Checkpoint208[] storage self,
uint48 key,
uint256 low,
uint256 high
) private view returns (uint256) {
while (low < high) {
uint256 mid = Math.average(low, high);
if (_unsafeAccess(self, mid)._key > key) {
high = mid;
} else {
low = mid + 1;
}
}
return high;
}
/**
* @dev Access an element of the array without performing a bounds check. The position is assumed to be within bounds.
*/
function _unsafeAccess(
OZCheckpoints.Checkpoint208[] storage self,
uint256 pos
) private pure returns (OZCheckpoints.Checkpoint208 storage result) {
assembly {
mstore(0, self.slot)
result.slot := add(keccak256(0, 0x20), pos)
}
}
}
ERC20Upgradeable.sol 341 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*/
abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
/// @custom:storage-location erc7201:openzeppelin.storage.ERC20
struct ERC20Storage {
mapping(address account => uint256) _balances;
mapping(address account => mapping(address spender => uint256)) _allowances;
uint256 _totalSupply;
string _name;
string _symbol;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;
function _getERC20Storage() private pure returns (ERC20Storage storage $) {
assembly {
$.slot := ERC20StorageLocation
}
}
/**
* @dev Sets the values for {name} and {symbol}.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC20_init_unchained(name_, symbol_);
}
function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
ERC20Storage storage $ = _getERC20Storage();
$._name = name_;
$._symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual returns (string memory) {
ERC20Storage storage $ = _getERC20Storage();
return $._name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual returns (string memory) {
ERC20Storage storage $ = _getERC20Storage();
return $._symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual returns (uint256) {
ERC20Storage storage $ = _getERC20Storage();
return $._totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual returns (uint256) {
ERC20Storage storage $ = _getERC20Storage();
return $._balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `value`.
*/
function transfer(address to, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_transfer(owner, to, value);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual returns (uint256) {
ERC20Storage storage $ = _getERC20Storage();
return $._allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, value);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `value`.
* - the caller must have allowance for ``from``'s tokens of at least
* `value`.
*/
function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, value);
_transfer(from, to, value);
return true;
}
/**
* @dev Moves a `value` amount of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _transfer(address from, address to, uint256 value) internal {
if (from == address(0)) {
revert ERC20InvalidSender(address(0));
}
if (to == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(from, to, value);
}
/**
* @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
* (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
* this function.
*
* Emits a {Transfer} event.
*/
function _update(address from, address to, uint256 value) internal virtual {
ERC20Storage storage $ = _getERC20Storage();
if (from == address(0)) {
// Overflow check required: The rest of the code assumes that totalSupply never overflows
$._totalSupply += value;
} else {
uint256 fromBalance = $._balances[from];
if (fromBalance < value) {
revert ERC20InsufficientBalance(from, fromBalance, value);
}
unchecked {
// Overflow not possible: value <= fromBalance <= totalSupply.
$._balances[from] = fromBalance - value;
}
}
if (to == address(0)) {
unchecked {
// Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
$._totalSupply -= value;
}
} else {
unchecked {
// Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
$._balances[to] += value;
}
}
emit Transfer(from, to, value);
}
/**
* @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
* Relies on the `_update` mechanism
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _mint(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(address(0), account, value);
}
/**
* @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
* Relies on the `_update` mechanism.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead
*/
function _burn(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidSender(address(0));
}
_update(account, address(0), value);
}
/**
* @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*
* Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
*/
function _approve(address owner, address spender, uint256 value) internal {
_approve(owner, spender, value, true);
}
/**
* @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
*
* By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
* `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
* `Approval` event during `transferFrom` operations.
*
* Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
* true using the following override:
* ```
* function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
* super._approve(owner, spender, value, true);
* }
* ```
*
* Requirements are the same as {_approve}.
*/
function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
ERC20Storage storage $ = _getERC20Storage();
if (owner == address(0)) {
revert ERC20InvalidApprover(address(0));
}
if (spender == address(0)) {
revert ERC20InvalidSpender(address(0));
}
$._allowances[owner][spender] = value;
if (emitEvent) {
emit Approval(owner, spender, value);
}
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `value`.
*
* Does not update the allowance value in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Does not emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
if (currentAllowance < value) {
revert ERC20InsufficientAllowance(spender, currentAllowance, value);
}
unchecked {
_approve(owner, spender, currentAllowance - value, false);
}
}
}
}
IERC20Metadata.sol 26 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
SafeERC20.sol 118 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../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 An operation with an ERC20 token failed.
*/
error SafeERC20FailedOperation(address token);
/**
* @dev Indicates a failed `decreaseAllowance` request.
*/
error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);
/**
* @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.encodeCall(token.transfer, (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.encodeCall(token.transferFrom, (from, to, 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);
forceApprove(token, spender, oldAllowance + value);
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
* value, non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
unchecked {
uint256 currentAllowance = token.allowance(address(this), spender);
if (currentAllowance < requestedDecrease) {
revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
}
forceApprove(token, spender, currentAllowance - requestedDecrease);
}
}
/**
* @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.encodeCall(token.approve, (spender, value));
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @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);
if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @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(token).code.length > 0;
}
}
Time.sol 130 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/types/Time.sol)
pragma solidity ^0.8.20;
import {Math} from "../math/Math.sol";
import {SafeCast} from "../math/SafeCast.sol";
/**
* @dev This library provides helpers for manipulating time-related objects.
*
* It uses the following types:
* - `uint48` for timepoints
* - `uint32` for durations
*
* While the library doesn't provide specific types for timepoints and duration, it does provide:
* - a `Delay` type to represent duration that can be programmed to change value automatically at a given point
* - additional helper functions
*/
library Time {
using Time for *;
/**
* @dev Get the block timestamp as a Timepoint.
*/
function timestamp() internal view returns (uint48) {
return SafeCast.toUint48(block.timestamp);
}
/**
* @dev Get the block number as a Timepoint.
*/
function blockNumber() internal view returns (uint48) {
return SafeCast.toUint48(block.number);
}
// ==================================================== Delay =====================================================
/**
* @dev A `Delay` is a uint32 duration that can be programmed to change value automatically at a given point in the
* future. The "effect" timepoint describes when the transitions happens from the "old" value to the "new" value.
* This allows updating the delay applied to some operation while keeping some guarantees.
*
* In particular, the {update} function guarantees that if the delay is reduced, the old delay still applies for
* some time. For example if the delay is currently 7 days to do an upgrade, the admin should not be able to set
* the delay to 0 and upgrade immediately. If the admin wants to reduce the delay, the old delay (7 days) should
* still apply for some time.
*
*
* The `Delay` type is 112 bits long, and packs the following:
*
* ```
* | [uint48]: effect date (timepoint)
* | | [uint32]: value before (duration)
* ↓ ↓ ↓ [uint32]: value after (duration)
* 0xAAAAAAAAAAAABBBBBBBBCCCCCCCC
* ```
*
* NOTE: The {get} and {withUpdate} functions operate using timestamps. Block number based delays are not currently
* supported.
*/
type Delay is uint112;
/**
* @dev Wrap a duration into a Delay to add the one-step "update in the future" feature
*/
function toDelay(uint32 duration) internal pure returns (Delay) {
return Delay.wrap(duration);
}
/**
* @dev Get the value at a given timepoint plus the pending value and effect timepoint if there is a scheduled
* change after this timepoint. If the effect timepoint is 0, then the pending value should not be considered.
*/
function _getFullAt(Delay self, uint48 timepoint) private pure returns (uint32, uint32, uint48) {
(uint32 valueBefore, uint32 valueAfter, uint48 effect) = self.unpack();
return effect <= timepoint ? (valueAfter, 0, 0) : (valueBefore, valueAfter, effect);
}
/**
* @dev Get the current value plus the pending value and effect timepoint if there is a scheduled change. If the
* effect timepoint is 0, then the pending value should not be considered.
*/
function getFull(Delay self) internal view returns (uint32, uint32, uint48) {
return _getFullAt(self, timestamp());
}
/**
* @dev Get the current value.
*/
function get(Delay self) internal view returns (uint32) {
(uint32 delay, , ) = self.getFull();
return delay;
}
/**
* @dev Update a Delay object so that it takes a new duration after a timepoint that is automatically computed to
* enforce the old delay at the moment of the update. Returns the updated Delay object and the timestamp when the
* new delay becomes effective.
*/
function withUpdate(
Delay self,
uint32 newValue,
uint32 minSetback
) internal view returns (Delay updatedDelay, uint48 effect) {
uint32 value = self.get();
uint32 setback = uint32(Math.max(minSetback, value > newValue ? value - newValue : 0));
effect = timestamp() + setback;
return (pack(value, newValue, effect), effect);
}
/**
* @dev Split a delay into its components: valueBefore, valueAfter and effect (transition timepoint).
*/
function unpack(Delay self) internal pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) {
uint112 raw = Delay.unwrap(self);
valueAfter = uint32(raw);
valueBefore = uint32(raw >> 32);
effect = uint48(raw >> 64);
return (valueBefore, valueAfter, effect);
}
/**
* @dev pack the components into a Delay object.
*/
function pack(uint32 valueBefore, uint32 valueAfter, uint48 effect) internal pure returns (Delay) {
return Delay.wrap((uint112(effect) << 64) | (uint112(valueBefore) << 32) | uint112(valueAfter));
}
}
MigratableEntity.sol 85 lines
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.25;
import {IMigratableEntity} from "../../interfaces/common/IMigratableEntity.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
abstract contract MigratableEntity is
Initializable,
OwnableUpgradeable,
ReentrancyGuardUpgradeable,
IMigratableEntity
{
/**
* @inheritdoc IMigratableEntity
*/
address public immutable FACTORY;
modifier notInitialized() {
if (_getInitializedVersion() != 0) {
revert AlreadyInitialized();
}
_;
}
constructor(
address factory
) {
_disableInitializers();
FACTORY = factory;
}
/**
* @inheritdoc IMigratableEntity
*/
function version() external view returns (uint64) {
return _getInitializedVersion();
}
/**
* @inheritdoc IMigratableEntity
*/
function initialize(
uint64 initialVersion,
address owner_,
bytes calldata data
) external notInitialized reinitializer(initialVersion) {
__ReentrancyGuard_init();
if (owner_ != address(0)) {
__Ownable_init(owner_);
}
_initialize(initialVersion, owner_, data);
}
/**
* @inheritdoc IMigratableEntity
*/
function migrate(uint64 newVersion, bytes calldata data) external nonReentrant {
if (msg.sender != FACTORY) {
revert NotFactory();
}
_migrateInternal(_getInitializedVersion(), newVersion, data);
}
function _migrateInternal(
uint64 oldVersion,
uint64 newVersion,
bytes calldata data
) private reinitializer(newVersion) {
_migrate(oldVersion, newVersion, data);
}
function _initialize(uint64, /* initialVersion */ address, /* owner */ bytes memory /* data */ ) internal virtual {}
function _migrate(uint64, /* oldVersion */ uint64, /* newVersion */ bytes calldata /* data */ ) internal virtual {}
uint256[10] private __gap;
}
VaultStorage.sol 227 lines
// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.25;
import {StaticDelegateCallable} from "../common/StaticDelegateCallable.sol";
import {IVaultStorage} from "../../interfaces/vault/IVaultStorage.sol";
import {Checkpoints} from "../libraries/Checkpoints.sol";
import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import {Time} from "@openzeppelin/contracts/utils/types/Time.sol";
abstract contract VaultStorage is StaticDelegateCallable, IVaultStorage {
using Checkpoints for Checkpoints.Trace256;
using SafeCast for uint256;
/**
* @inheritdoc IVaultStorage
*/
bytes32 public constant DEPOSIT_WHITELIST_SET_ROLE = keccak256("DEPOSIT_WHITELIST_SET_ROLE");
/**
* @inheritdoc IVaultStorage
*/
bytes32 public constant DEPOSITOR_WHITELIST_ROLE = keccak256("DEPOSITOR_WHITELIST_ROLE");
/**
* @inheritdoc IVaultStorage
*/
bytes32 public constant IS_DEPOSIT_LIMIT_SET_ROLE = keccak256("IS_DEPOSIT_LIMIT_SET_ROLE");
/**
* @inheritdoc IVaultStorage
*/
bytes32 public constant DEPOSIT_LIMIT_SET_ROLE = keccak256("DEPOSIT_LIMIT_SET_ROLE");
/**
* @inheritdoc IVaultStorage
*/
address public immutable DELEGATOR_FACTORY;
/**
* @inheritdoc IVaultStorage
*/
address public immutable SLASHER_FACTORY;
/**
* @inheritdoc IVaultStorage
*/
bool public depositWhitelist;
/**
* @inheritdoc IVaultStorage
*/
bool public isDepositLimit;
/**
* @inheritdoc IVaultStorage
*/
address public collateral;
/**
* @inheritdoc IVaultStorage
*/
address public burner;
/**
* @inheritdoc IVaultStorage
*/
uint48 public epochDurationInit;
/**
* @inheritdoc IVaultStorage
*/
uint48 public epochDuration;
/**
* @inheritdoc IVaultStorage
*/
address public delegator;
/**
* @inheritdoc IVaultStorage
*/
bool public isDelegatorInitialized;
/**
* @inheritdoc IVaultStorage
*/
address public slasher;
/**
* @inheritdoc IVaultStorage
*/
bool public isSlasherInitialized;
/**
* @inheritdoc IVaultStorage
*/
uint256 public depositLimit;
/**
* @inheritdoc IVaultStorage
*/
mapping(address account => bool value) public isDepositorWhitelisted;
/**
* @inheritdoc IVaultStorage
*/
mapping(uint256 epoch => uint256 amount) public withdrawals;
/**
* @inheritdoc IVaultStorage
*/
mapping(uint256 epoch => uint256 amount) public withdrawalShares;
/**
* @inheritdoc IVaultStorage
*/
mapping(uint256 epoch => mapping(address account => uint256 amount)) public withdrawalSharesOf;
/**
* @inheritdoc IVaultStorage
*/
mapping(uint256 epoch => mapping(address account => bool value)) public isWithdrawalsClaimed;
Checkpoints.Trace256 internal _activeShares;
Checkpoints.Trace256 internal _activeStake;
mapping(address account => Checkpoints.Trace256 shares) internal _activeSharesOf;
constructor(address delegatorFactory, address slasherFactory) {
DELEGATOR_FACTORY = delegatorFactory;
SLASHER_FACTORY = slasherFactory;
}
/**
* @inheritdoc IVaultStorage
*/
function epochAt(
uint48 timestamp
) public view returns (uint256) {
if (timestamp < epochDurationInit) {
revert InvalidTimestamp();
}
return (timestamp - epochDurationInit) / epochDuration;
}
/**
* @inheritdoc IVaultStorage
*/
function currentEpoch() public view returns (uint256) {
return (Time.timestamp() - epochDurationInit) / epochDuration;
}
/**
* @inheritdoc IVaultStorage
*/
function currentEpochStart() public view returns (uint48) {
return (epochDurationInit + currentEpoch() * epochDuration).toUint48();
}
/**
* @inheritdoc IVaultStorage
*/
function previousEpochStart() public view returns (uint48) {
uint256 epoch = currentEpoch();
if (epoch == 0) {
revert NoPreviousEpoch();
}
return (epochDurationInit + (epoch - 1) * epochDuration).toUint48();
}
/**
* @inheritdoc IVaultStorage
*/
function nextEpochStart() public view returns (uint48) {
return (epochDurationInit + (currentEpoch() + 1) * epochDuration).toUint48();
}
/**
* @inheritdoc IVaultStorage
*/
function activeSharesAt(uint48 timestamp, bytes memory hint) public view returns (uint256) {
return _activeShares.upperLookupRecent(timestamp, hint);
}
/**
* @inheritdoc IVaultStorage
*/
function activeShares() public view returns (uint256) {
return _activeShares.latest();
}
/**
* @inheritdoc IVaultStorage
*/
function activeStakeAt(uint48 timestamp, bytes memory hint) public view returns (uint256) {
return _activeStake.upperLookupRecent(timestamp, hint);
}
/**
* @inheritdoc IVaultStorage
*/
function activeStake() public view returns (uint256) {
return _activeStake.latest();
}
/**
* @inheritdoc IVaultStorage
*/
function activeSharesOfAt(address account, uint48 timestamp, bytes memory hint) public view returns (uint256) {
return _activeSharesOf[account].upperLookupRecent(timestamp, hint);
}
/**
* @inheritdoc IVaultStorage
*/
function activeSharesOf(
address account
) public view returns (uint256) {
return _activeSharesOf[account].latest();
}
uint256[50] private __gap;
}
IBaseDelegator.sol 190 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IEntity} from "../common/IEntity.sol";
interface IBaseDelegator is IEntity {
error AlreadySet();
error InsufficientHookGas();
error NotNetwork();
error NotSlasher();
error NotVault();
/**
* @notice Base parameters needed for delegators' deployment.
* @param defaultAdminRoleHolder address of the initial DEFAULT_ADMIN_ROLE holder
* @param hook address of the hook contract
* @param hookSetRoleHolder address of the initial HOOK_SET_ROLE holder
*/
struct BaseParams {
address defaultAdminRoleHolder;
address hook;
address hookSetRoleHolder;
}
/**
* @notice Base hints for a stake.
* @param operatorVaultOptInHint hint for the operator-vault opt-in
* @param operatorNetworkOptInHint hint for the operator-network opt-in
*/
struct StakeBaseHints {
bytes operatorVaultOptInHint;
bytes operatorNetworkOptInHint;
}
/**
* @notice Emitted when a subnetwork's maximum limit is set.
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param amount new maximum subnetwork's limit (how much stake the subnetwork is ready to get)
*/
event SetMaxNetworkLimit(bytes32 indexed subnetwork, uint256 amount);
/**
* @notice Emitted when a slash happens.
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @param amount amount of the collateral to be slashed
* @param captureTimestamp time point when the stake was captured
*/
event OnSlash(bytes32 indexed subnetwork, address indexed operator, uint256 amount, uint48 captureTimestamp);
/**
* @notice Emitted when a hook is set.
* @param hook address of the hook
*/
event SetHook(address indexed hook);
/**
* @notice Get a version of the delegator (different versions mean different interfaces).
* @return version of the delegator
* @dev Must return 1 for this one.
*/
function VERSION() external view returns (uint64);
/**
* @notice Get the network registry's address.
* @return address of the network registry
*/
function NETWORK_REGISTRY() external view returns (address);
/**
* @notice Get the vault factory's address.
* @return address of the vault factory
*/
function VAULT_FACTORY() external view returns (address);
/**
* @notice Get the operator-vault opt-in service's address.
* @return address of the operator-vault opt-in service
*/
function OPERATOR_VAULT_OPT_IN_SERVICE() external view returns (address);
/**
* @notice Get the operator-network opt-in service's address.
* @return address of the operator-network opt-in service
*/
function OPERATOR_NETWORK_OPT_IN_SERVICE() external view returns (address);
/**
* @notice Get a gas limit for the hook.
* @return value of the hook gas limit
*/
function HOOK_GAS_LIMIT() external view returns (uint256);
/**
* @notice Get a reserve gas between the gas limit check and the hook's execution.
* @return value of the reserve gas
*/
function HOOK_RESERVE() external view returns (uint256);
/**
* @notice Get a hook setter's role.
* @return identifier of the hook setter role
*/
function HOOK_SET_ROLE() external view returns (bytes32);
/**
* @notice Get the vault's address.
* @return address of the vault
*/
function vault() external view returns (address);
/**
* @notice Get the hook's address.
* @return address of the hook
* @dev The hook can have arbitrary logic under certain functions, however, it doesn't affect the stake guarantees.
*/
function hook() external view returns (address);
/**
* @notice Get a particular subnetwork's maximum limit
* (meaning the subnetwork is not ready to get more as a stake).
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @return maximum limit of the subnetwork
*/
function maxNetworkLimit(
bytes32 subnetwork
) external view returns (uint256);
/**
* @notice Get a stake that a given subnetwork could be able to slash for a certain operator at a given timestamp
* until the end of the consequent epoch using hints (if no cross-slashing and no slashings by the subnetwork).
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @param timestamp time point to capture the stake at
* @param hints hints for the checkpoints' indexes
* @return slashable stake at the given timestamp until the end of the consequent epoch
* @dev Warning: it is not safe to use timestamp >= current one for the stake capturing, as it can change later.
*/
function stakeAt(
bytes32 subnetwork,
address operator,
uint48 timestamp,
bytes memory hints
) external view returns (uint256);
/**
* @notice Get a stake that a given subnetwork will be able to slash
* for a certain operator until the end of the next epoch (if no cross-slashing and no slashings by the subnetwork).
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @return slashable stake until the end of the next epoch
* @dev Warning: this function is not safe to use for stake capturing, as it can change by the end of the block.
*/
function stake(bytes32 subnetwork, address operator) external view returns (uint256);
/**
* @notice Set a maximum limit for a subnetwork (how much stake the subnetwork is ready to get).
* identifier identifier of the subnetwork
* @param amount new maximum subnetwork's limit
* @dev Only a network can call this function.
*/
function setMaxNetworkLimit(uint96 identifier, uint256 amount) external;
/**
* @notice Set a new hook.
* @param hook address of the hook
* @dev Only a HOOK_SET_ROLE holder can call this function.
* The hook can have arbitrary logic under certain functions, however, it doesn't affect the stake guarantees.
*/
function setHook(
address hook
) external;
/**
* @notice Called when a slash happens.
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @param amount amount of the collateral slashed
* @param captureTimestamp time point when the stake was captured
* @param data some additional data
* @dev Only the vault's slasher can call this function.
*/
function onSlash(
bytes32 subnetwork,
address operator,
uint256 amount,
uint48 captureTimestamp,
bytes calldata data
) external;
}
IBaseSlasher.sol 121 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IEntity} from "../common/IEntity.sol";
interface IBaseSlasher is IEntity {
error NoBurner();
error InsufficientBurnerGas();
error NotNetworkMiddleware();
error NotVault();
/**
* @notice Base parameters needed for slashers' deployment.
* @param isBurnerHook if the burner is needed to be called on a slashing
*/
struct BaseParams {
bool isBurnerHook;
}
/**
* @notice Hints for a slashable stake.
* @param stakeHints hints for the stake checkpoints
* @param cumulativeSlashFromHint hint for the cumulative slash amount at a capture timestamp
*/
struct SlashableStakeHints {
bytes stakeHints;
bytes cumulativeSlashFromHint;
}
/**
* @notice General data for the delegator.
* @param slasherType type of the slasher
* @param data slasher-dependent data for the delegator
*/
struct GeneralDelegatorData {
uint64 slasherType;
bytes data;
}
/**
* @notice Get a gas limit for the burner.
* @return value of the burner gas limit
*/
function BURNER_GAS_LIMIT() external view returns (uint256);
/**
* @notice Get a reserve gas between the gas limit check and the burner's execution.
* @return value of the reserve gas
*/
function BURNER_RESERVE() external view returns (uint256);
/**
* @notice Get the vault factory's address.
* @return address of the vault factory
*/
function VAULT_FACTORY() external view returns (address);
/**
* @notice Get the network middleware service's address.
* @return address of the network middleware service
*/
function NETWORK_MIDDLEWARE_SERVICE() external view returns (address);
/**
* @notice Get the vault's address.
* @return address of the vault to perform slashings on
*/
function vault() external view returns (address);
/**
* @notice Get if the burner is needed to be called on a slashing.
* @return if the burner is a hook
*/
function isBurnerHook() external view returns (bool);
/**
* @notice Get the latest capture timestamp that was slashed on a subnetwork.
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @return latest capture timestamp that was slashed
*/
function latestSlashedCaptureTimestamp(bytes32 subnetwork, address operator) external view returns (uint48);
/**
* @notice Get a cumulative slash amount for an operator on a subnetwork until a given timestamp (inclusively) using a hint.
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @param timestamp time point to get the cumulative slash amount until (inclusively)
* @param hint hint for the checkpoint index
* @return cumulative slash amount until the given timestamp (inclusively)
*/
function cumulativeSlashAt(
bytes32 subnetwork,
address operator,
uint48 timestamp,
bytes memory hint
) external view returns (uint256);
/**
* @notice Get a cumulative slash amount for an operator on a subnetwork.
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @return cumulative slash amount
*/
function cumulativeSlash(bytes32 subnetwork, address operator) external view returns (uint256);
/**
* @notice Get a slashable amount of a stake got at a given capture timestamp using hints.
* @param subnetwork full identifier of the subnetwork (address of the network concatenated with the uint96 identifier)
* @param operator address of the operator
* @param captureTimestamp time point to get the stake amount at
* @param hints hints for the checkpoints' indexes
* @return slashable amount of the stake
*/
function slashableStake(
bytes32 subnetwork,
address operator,
uint48 captureTimestamp,
bytes memory hints
) external view returns (uint256);
}
IRegistry.sol 36 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IRegistry {
error EntityNotExist();
/**
* @notice Emitted when an entity is added.
* @param entity address of the added entity
*/
event AddEntity(address indexed entity);
/**
* @notice Get if a given address is an entity.
* @param account address to check
* @return if the given address is an entity
*/
function isEntity(
address account
) external view returns (bool);
/**
* @notice Get a total number of entities.
* @return total number of entities added
*/
function totalEntities() external view returns (uint256);
/**
* @notice Get an entity given its index.
* @param index index of the entity to get
* @return address of the entity
*/
function entity(
uint256 index
) external view returns (address);
}
ERC4626Math.sol 59 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
/**
* @dev This library adds helper functions for ERC4626 math operations.
*/
library ERC4626Math {
using Math for uint256;
function previewDeposit(uint256 assets, uint256 totalShares, uint256 totalAssets) internal pure returns (uint256) {
return convertToShares(assets, totalShares, totalAssets, Math.Rounding.Floor);
}
function previewMint(uint256 shares, uint256 totalAssets, uint256 totalShares) internal pure returns (uint256) {
return convertToAssets(shares, totalAssets, totalShares, Math.Rounding.Ceil);
}
function previewWithdraw(
uint256 assets,
uint256 totalShares,
uint256 totalAssets
) internal pure returns (uint256) {
return convertToShares(assets, totalShares, totalAssets, Math.Rounding.Ceil);
}
function previewRedeem(uint256 shares, uint256 totalAssets, uint256 totalShares) internal pure returns (uint256) {
return convertToAssets(shares, totalAssets, totalShares, Math.Rounding.Floor);
}
/**
* @dev Internal conversion function (from assets to shares) with support for rounding direction.
*/
function convertToShares(
uint256 assets,
uint256 totalShares,
uint256 totalAssets,
Math.Rounding rounding
) internal pure returns (uint256) {
return assets.mulDiv(totalShares + 10 ** _decimalsOffset(), totalAssets + 1, rounding);
}
/**
* @dev Internal conversion function (from shares to assets) with support for rounding direction.
*/
function convertToAssets(
uint256 shares,
uint256 totalAssets,
uint256 totalShares,
Math.Rounding rounding
) internal pure returns (uint256) {
return shares.mulDiv(totalAssets + 1, totalShares + 10 ** _decimalsOffset(), rounding);
}
function _decimalsOffset() private pure returns (uint8) {
return 0;
}
}
AccessControlUpgradeable.sol 233 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)
pragma solidity ^0.8.20;
import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```solidity
* bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
* ```
*
* Roles can be used to represent a set of permissions. To restrict access to a
* function call, use {hasRole}:
*
* ```solidity
* function foo() public {
* require(hasRole(MY_ROLE, msg.sender));
* ...
* }
* ```
*
* Roles can be granted and revoked dynamically via the {grantRole} and
* {revokeRole} functions. Each role has an associated admin role, and only
* accounts that have a role's admin role can call {grantRole} and {revokeRole}.
*
* By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
* that only accounts with this role will be able to grant or revoke other
* roles. More complex role relationships can be created by using
* {_setRoleAdmin}.
*
* WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
* grant and revoke this role. Extra precautions should be taken to secure
* accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
* to enforce additional security measures for this role.
*/
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
struct RoleData {
mapping(address account => bool) hasRole;
bytes32 adminRole;
}
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
struct AccessControlStorage {
mapping(bytes32 role => RoleData) _roles;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;
function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
assembly {
$.slot := AccessControlStorageLocation
}
}
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with an {AccessControlUnauthorizedAccount} error including the required role.
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
function __AccessControl_init() internal onlyInitializing {
}
function __AccessControl_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual returns (bool) {
AccessControlStorage storage $ = _getAccessControlStorage();
return $._roles[role].hasRole[account];
}
/**
* @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
* is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
* is missing `role`.
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert AccessControlUnauthorizedAccount(account, role);
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
AccessControlStorage storage $ = _getAccessControlStorage();
return $._roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleGranted} event.
*/
function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleRevoked} event.
*/
function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `callerConfirmation`.
*
* May emit a {RoleRevoked} event.
*/
function renounceRole(bytes32 role, address callerConfirmation) public virtual {
if (callerConfirmation != _msgSender()) {
revert AccessControlBadConfirmation();
}
_revokeRole(role, callerConfirmation);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
AccessControlStorage storage $ = _getAccessControlStorage();
bytes32 previousAdminRole = getRoleAdmin(role);
$._roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
*
* Internal function without access restriction.
*
* May emit a {RoleGranted} event.
*/
function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
AccessControlStorage storage $ = _getAccessControlStorage();
if (!hasRole(role, account)) {
$._roles[role].hasRole[account] = true;
emit RoleGranted(role, account, _msgSender());
return true;
} else {
return false;
}
}
/**
* @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
*
* Internal function without access restriction.
*
* May emit a {RoleRevoked} event.
*/
function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
AccessControlStorage storage $ = _getAccessControlStorage();
if (hasRole(role, account)) {
$._roles[role].hasRole[account] = false;
emit RoleRevoked(role, account, _msgSender());
return true;
} else {
return false;
}
}
}
Math.sol 415 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @dev Muldiv operation overflow.
*/
error MathOverflowedMulDiv();
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
return a / b;
}
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0 = x * y; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
if (denominator <= prod1) {
revert MathOverflowedMulDiv();
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}
SafeCast.sol 1153 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.
pragma solidity ^0.8.20;
/**
* @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
* checks.
*
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
* easily result in undesired exploitation or bugs, since developers usually
* assume that overflows raise errors. `SafeCast` restores this intuition by
* reverting the transaction when such an operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeCast {
/**
* @dev Value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);
/**
* @dev An int value doesn't fit in an uint of `bits` size.
*/
error SafeCastOverflowedIntToUint(int256 value);
/**
* @dev Value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);
/**
* @dev An uint value doesn't fit in an int of `bits` size.
*/
error SafeCastOverflowedUintToInt(uint256 value);
/**
* @dev Returns the downcasted uint248 from uint256, reverting on
* overflow (when the input is greater than largest uint248).
*
* Counterpart to Solidity's `uint248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toUint248(uint256 value) internal pure returns (uint248) {
if (value > type(uint248).max) {
revert SafeCastOverflowedUintDowncast(248, value);
}
return uint248(value);
}
/**
* @dev Returns the downcasted uint240 from uint256, reverting on
* overflow (when the input is greater than largest uint240).
*
* Counterpart to Solidity's `uint240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toUint240(uint256 value) internal pure returns (uint240) {
if (value > type(uint240).max) {
revert SafeCastOverflowedUintDowncast(240, value);
}
return uint240(value);
}
/**
* @dev Returns the downcasted uint232 from uint256, reverting on
* overflow (when the input is greater than largest uint232).
*
* Counterpart to Solidity's `uint232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toUint232(uint256 value) internal pure returns (uint232) {
if (value > type(uint232).max) {
revert SafeCastOverflowedUintDowncast(232, value);
}
return uint232(value);
}
/**
* @dev Returns the downcasted uint224 from uint256, reverting on
* overflow (when the input is greater than largest uint224).
*
* Counterpart to Solidity's `uint224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toUint224(uint256 value) internal pure returns (uint224) {
if (value > type(uint224).max) {
revert SafeCastOverflowedUintDowncast(224, value);
}
return uint224(value);
}
/**
* @dev Returns the downcasted uint216 from uint256, reverting on
* overflow (when the input is greater than largest uint216).
*
* Counterpart to Solidity's `uint216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toUint216(uint256 value) internal pure returns (uint216) {
if (value > type(uint216).max) {
revert SafeCastOverflowedUintDowncast(216, value);
}
return uint216(value);
}
/**
* @dev Returns the downcasted uint208 from uint256, reverting on
* overflow (when the input is greater than largest uint208).
*
* Counterpart to Solidity's `uint208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toUint208(uint256 value) internal pure returns (uint208) {
if (value > type(uint208).max) {
revert SafeCastOverflowedUintDowncast(208, value);
}
return uint208(value);
}
/**
* @dev Returns the downcasted uint200 from uint256, reverting on
* overflow (when the input is greater than largest uint200).
*
* Counterpart to Solidity's `uint200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toUint200(uint256 value) internal pure returns (uint200) {
if (value > type(uint200).max) {
revert SafeCastOverflowedUintDowncast(200, value);
}
return uint200(value);
}
/**
* @dev Returns the downcasted uint192 from uint256, reverting on
* overflow (when the input is greater than largest uint192).
*
* Counterpart to Solidity's `uint192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toUint192(uint256 value) internal pure returns (uint192) {
if (value > type(uint192).max) {
revert SafeCastOverflowedUintDowncast(192, value);
}
return uint192(value);
}
/**
* @dev Returns the downcasted uint184 from uint256, reverting on
* overflow (when the input is greater than largest uint184).
*
* Counterpart to Solidity's `uint184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toUint184(uint256 value) internal pure returns (uint184) {
if (value > type(uint184).max) {
revert SafeCastOverflowedUintDowncast(184, value);
}
return uint184(value);
}
/**
* @dev Returns the downcasted uint176 from uint256, reverting on
* overflow (when the input is greater than largest uint176).
*
* Counterpart to Solidity's `uint176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toUint176(uint256 value) internal pure returns (uint176) {
if (value > type(uint176).max) {
revert SafeCastOverflowedUintDowncast(176, value);
}
return uint176(value);
}
/**
* @dev Returns the downcasted uint168 from uint256, reverting on
* overflow (when the input is greater than largest uint168).
*
* Counterpart to Solidity's `uint168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toUint168(uint256 value) internal pure returns (uint168) {
if (value > type(uint168).max) {
revert SafeCastOverflowedUintDowncast(168, value);
}
return uint168(value);
}
/**
* @dev Returns the downcasted uint160 from uint256, reverting on
* overflow (when the input is greater than largest uint160).
*
* Counterpart to Solidity's `uint160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toUint160(uint256 value) internal pure returns (uint160) {
if (value > type(uint160).max) {
revert SafeCastOverflowedUintDowncast(160, value);
}
return uint160(value);
}
/**
* @dev Returns the downcasted uint152 from uint256, reverting on
* overflow (when the input is greater than largest uint152).
*
* Counterpart to Solidity's `uint152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toUint152(uint256 value) internal pure returns (uint152) {
if (value > type(uint152).max) {
revert SafeCastOverflowedUintDowncast(152, value);
}
return uint152(value);
}
/**
* @dev Returns the downcasted uint144 from uint256, reverting on
* overflow (when the input is greater than largest uint144).
*
* Counterpart to Solidity's `uint144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toUint144(uint256 value) internal pure returns (uint144) {
if (value > type(uint144).max) {
revert SafeCastOverflowedUintDowncast(144, value);
}
return uint144(value);
}
/**
* @dev Returns the downcasted uint136 from uint256, reverting on
* overflow (when the input is greater than largest uint136).
*
* Counterpart to Solidity's `uint136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toUint136(uint256 value) internal pure returns (uint136) {
if (value > type(uint136).max) {
revert SafeCastOverflowedUintDowncast(136, value);
}
return uint136(value);
}
/**
* @dev Returns the downcasted uint128 from uint256, reverting on
* overflow (when the input is greater than largest uint128).
*
* Counterpart to Solidity's `uint128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toUint128(uint256 value) internal pure returns (uint128) {
if (value > type(uint128).max) {
revert SafeCastOverflowedUintDowncast(128, value);
}
return uint128(value);
}
/**
* @dev Returns the downcasted uint120 from uint256, reverting on
* overflow (when the input is greater than largest uint120).
*
* Counterpart to Solidity's `uint120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toUint120(uint256 value) internal pure returns (uint120) {
if (value > type(uint120).max) {
revert SafeCastOverflowedUintDowncast(120, value);
}
return uint120(value);
}
/**
* @dev Returns the downcasted uint112 from uint256, reverting on
* overflow (when the input is greater than largest uint112).
*
* Counterpart to Solidity's `uint112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toUint112(uint256 value) internal pure returns (uint112) {
if (value > type(uint112).max) {
revert SafeCastOverflowedUintDowncast(112, value);
}
return uint112(value);
}
/**
* @dev Returns the downcasted uint104 from uint256, reverting on
* overflow (when the input is greater than largest uint104).
*
* Counterpart to Solidity's `uint104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toUint104(uint256 value) internal pure returns (uint104) {
if (value > type(uint104).max) {
revert SafeCastOverflowedUintDowncast(104, value);
}
return uint104(value);
}
/**
* @dev Returns the downcasted uint96 from uint256, reverting on
* overflow (when the input is greater than largest uint96).
*
* Counterpart to Solidity's `uint96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toUint96(uint256 value) internal pure returns (uint96) {
if (value > type(uint96).max) {
revert SafeCastOverflowedUintDowncast(96, value);
}
return uint96(value);
}
/**
* @dev Returns the downcasted uint88 from uint256, reverting on
* overflow (when the input is greater than largest uint88).
*
* Counterpart to Solidity's `uint88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toUint88(uint256 value) internal pure returns (uint88) {
if (value > type(uint88).max) {
revert SafeCastOverflowedUintDowncast(88, value);
}
return uint88(value);
}
/**
* @dev Returns the downcasted uint80 from uint256, reverting on
* overflow (when the input is greater than largest uint80).
*
* Counterpart to Solidity's `uint80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toUint80(uint256 value) internal pure returns (uint80) {
if (value > type(uint80).max) {
revert SafeCastOverflowedUintDowncast(80, value);
}
return uint80(value);
}
/**
* @dev Returns the downcasted uint72 from uint256, reverting on
* overflow (when the input is greater than largest uint72).
*
* Counterpart to Solidity's `uint72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toUint72(uint256 value) internal pure returns (uint72) {
if (value > type(uint72).max) {
revert SafeCastOverflowedUintDowncast(72, value);
}
return uint72(value);
}
/**
* @dev Returns the downcasted uint64 from uint256, reverting on
* overflow (when the input is greater than largest uint64).
*
* Counterpart to Solidity's `uint64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toUint64(uint256 value) internal pure returns (uint64) {
if (value > type(uint64).max) {
revert SafeCastOverflowedUintDowncast(64, value);
}
return uint64(value);
}
/**
* @dev Returns the downcasted uint56 from uint256, reverting on
* overflow (when the input is greater than largest uint56).
*
* Counterpart to Solidity's `uint56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toUint56(uint256 value) internal pure returns (uint56) {
if (value > type(uint56).max) {
revert SafeCastOverflowedUintDowncast(56, value);
}
return uint56(value);
}
/**
* @dev Returns the downcasted uint48 from uint256, reverting on
* overflow (when the input is greater than largest uint48).
*
* Counterpart to Solidity's `uint48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toUint48(uint256 value) internal pure returns (uint48) {
if (value > type(uint48).max) {
revert SafeCastOverflowedUintDowncast(48, value);
}
return uint48(value);
}
/**
* @dev Returns the downcasted uint40 from uint256, reverting on
* overflow (when the input is greater than largest uint40).
*
* Counterpart to Solidity's `uint40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toUint40(uint256 value) internal pure returns (uint40) {
if (value > type(uint40).max) {
revert SafeCastOverflowedUintDowncast(40, value);
}
return uint40(value);
}
/**
* @dev Returns the downcasted uint32 from uint256, reverting on
* overflow (when the input is greater than largest uint32).
*
* Counterpart to Solidity's `uint32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toUint32(uint256 value) internal pure returns (uint32) {
if (value > type(uint32).max) {
revert SafeCastOverflowedUintDowncast(32, value);
}
return uint32(value);
}
/**
* @dev Returns the downcasted uint24 from uint256, reverting on
* overflow (when the input is greater than largest uint24).
*
* Counterpart to Solidity's `uint24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toUint24(uint256 value) internal pure returns (uint24) {
if (value > type(uint24).max) {
revert SafeCastOverflowedUintDowncast(24, value);
}
return uint24(value);
}
/**
* @dev Returns the downcasted uint16 from uint256, reverting on
* overflow (when the input is greater than largest uint16).
*
* Counterpart to Solidity's `uint16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toUint16(uint256 value) internal pure returns (uint16) {
if (value > type(uint16).max) {
revert SafeCastOverflowedUintDowncast(16, value);
}
return uint16(value);
}
/**
* @dev Returns the downcasted uint8 from uint256, reverting on
* overflow (when the input is greater than largest uint8).
*
* Counterpart to Solidity's `uint8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toUint8(uint256 value) internal pure returns (uint8) {
if (value > type(uint8).max) {
revert SafeCastOverflowedUintDowncast(8, value);
}
return uint8(value);
}
/**
* @dev Converts a signed int256 into an unsigned uint256.
*
* Requirements:
*
* - input must be greater than or equal to 0.
*/
function toUint256(int256 value) internal pure returns (uint256) {
if (value < 0) {
revert SafeCastOverflowedIntToUint(value);
}
return uint256(value);
}
/**
* @dev Returns the downcasted int248 from int256, reverting on
* overflow (when the input is less than smallest int248 or
* greater than largest int248).
*
* Counterpart to Solidity's `int248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*/
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(248, value);
}
}
/**
* @dev Returns the downcasted int240 from int256, reverting on
* overflow (when the input is less than smallest int240 or
* greater than largest int240).
*
* Counterpart to Solidity's `int240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*/
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(240, value);
}
}
/**
* @dev Returns the downcasted int232 from int256, reverting on
* overflow (when the input is less than smallest int232 or
* greater than largest int232).
*
* Counterpart to Solidity's `int232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*/
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(232, value);
}
}
/**
* @dev Returns the downcasted int224 from int256, reverting on
* overflow (when the input is less than smallest int224 or
* greater than largest int224).
*
* Counterpart to Solidity's `int224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*/
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(224, value);
}
}
/**
* @dev Returns the downcasted int216 from int256, reverting on
* overflow (when the input is less than smallest int216 or
* greater than largest int216).
*
* Counterpart to Solidity's `int216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*/
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(216, value);
}
}
/**
* @dev Returns the downcasted int208 from int256, reverting on
* overflow (when the input is less than smallest int208 or
* greater than largest int208).
*
* Counterpart to Solidity's `int208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*/
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(208, value);
}
}
/**
* @dev Returns the downcasted int200 from int256, reverting on
* overflow (when the input is less than smallest int200 or
* greater than largest int200).
*
* Counterpart to Solidity's `int200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*/
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(200, value);
}
}
/**
* @dev Returns the downcasted int192 from int256, reverting on
* overflow (when the input is less than smallest int192 or
* greater than largest int192).
*
* Counterpart to Solidity's `int192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*/
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(192, value);
}
}
/**
* @dev Returns the downcasted int184 from int256, reverting on
* overflow (when the input is less than smallest int184 or
* greater than largest int184).
*
* Counterpart to Solidity's `int184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*/
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(184, value);
}
}
/**
* @dev Returns the downcasted int176 from int256, reverting on
* overflow (when the input is less than smallest int176 or
* greater than largest int176).
*
* Counterpart to Solidity's `int176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*/
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(176, value);
}
}
/**
* @dev Returns the downcasted int168 from int256, reverting on
* overflow (when the input is less than smallest int168 or
* greater than largest int168).
*
* Counterpart to Solidity's `int168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*/
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(168, value);
}
}
/**
* @dev Returns the downcasted int160 from int256, reverting on
* overflow (when the input is less than smallest int160 or
* greater than largest int160).
*
* Counterpart to Solidity's `int160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*/
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(160, value);
}
}
/**
* @dev Returns the downcasted int152 from int256, reverting on
* overflow (when the input is less than smallest int152 or
* greater than largest int152).
*
* Counterpart to Solidity's `int152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*/
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(152, value);
}
}
/**
* @dev Returns the downcasted int144 from int256, reverting on
* overflow (when the input is less than smallest int144 or
* greater than largest int144).
*
* Counterpart to Solidity's `int144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*/
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(144, value);
}
}
/**
* @dev Returns the downcasted int136 from int256, reverting on
* overflow (when the input is less than smallest int136 or
* greater than largest int136).
*
* Counterpart to Solidity's `int136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*/
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(136, value);
}
}
/**
* @dev Returns the downcasted int128 from int256, reverting on
* overflow (when the input is less than smallest int128 or
* greater than largest int128).
*
* Counterpart to Solidity's `int128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*/
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(128, value);
}
}
/**
* @dev Returns the downcasted int120 from int256, reverting on
* overflow (when the input is less than smallest int120 or
* greater than largest int120).
*
* Counterpart to Solidity's `int120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*/
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(120, value);
}
}
/**
* @dev Returns the downcasted int112 from int256, reverting on
* overflow (when the input is less than smallest int112 or
* greater than largest int112).
*
* Counterpart to Solidity's `int112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*/
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(112, value);
}
}
/**
* @dev Returns the downcasted int104 from int256, reverting on
* overflow (when the input is less than smallest int104 or
* greater than largest int104).
*
* Counterpart to Solidity's `int104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*/
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(104, value);
}
}
/**
* @dev Returns the downcasted int96 from int256, reverting on
* overflow (when the input is less than smallest int96 or
* greater than largest int96).
*
* Counterpart to Solidity's `int96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*/
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(96, value);
}
}
/**
* @dev Returns the downcasted int88 from int256, reverting on
* overflow (when the input is less than smallest int88 or
* greater than largest int88).
*
* Counterpart to Solidity's `int88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*/
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(88, value);
}
}
/**
* @dev Returns the downcasted int80 from int256, reverting on
* overflow (when the input is less than smallest int80 or
* greater than largest int80).
*
* Counterpart to Solidity's `int80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*/
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(80, value);
}
}
/**
* @dev Returns the downcasted int72 from int256, reverting on
* overflow (when the input is less than smallest int72 or
* greater than largest int72).
*
* Counterpart to Solidity's `int72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*/
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(72, value);
}
}
/**
* @dev Returns the downcasted int64 from int256, reverting on
* overflow (when the input is less than smallest int64 or
* greater than largest int64).
*
* Counterpart to Solidity's `int64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*/
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(64, value);
}
}
/**
* @dev Returns the downcasted int56 from int256, reverting on
* overflow (when the input is less than smallest int56 or
* greater than largest int56).
*
* Counterpart to Solidity's `int56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*/
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(56, value);
}
}
/**
* @dev Returns the downcasted int48 from int256, reverting on
* overflow (when the input is less than smallest int48 or
* greater than largest int48).
*
* Counterpart to Solidity's `int48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*/
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(48, value);
}
}
/**
* @dev Returns the downcasted int40 from int256, reverting on
* overflow (when the input is less than smallest int40 or
* greater than largest int40).
*
* Counterpart to Solidity's `int40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*/
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(40, value);
}
}
/**
* @dev Returns the downcasted int32 from int256, reverting on
* overflow (when the input is less than smallest int32 or
* greater than largest int32).
*
* Counterpart to Solidity's `int32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*/
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(32, value);
}
}
/**
* @dev Returns the downcasted int24 from int256, reverting on
* overflow (when the input is less than smallest int24 or
* greater than largest int24).
*
* Counterpart to Solidity's `int24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*/
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(24, value);
}
}
/**
* @dev Returns the downcasted int16 from int256, reverting on
* overflow (when the input is less than smallest int16 or
* greater than largest int16).
*
* Counterpart to Solidity's `int16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*/
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(16, value);
}
}
/**
* @dev Returns the downcasted int8 from int256, reverting on
* overflow (when the input is less than smallest int8 or
* greater than largest int8).
*
* Counterpart to Solidity's `int8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*/
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
if (downcasted != value) {
revert SafeCastOverflowedIntDowncast(8, value);
}
}
/**
* @dev Converts an unsigned uint256 into a signed int256.
*
* Requirements:
*
* - input must be less than or equal to maxInt256.
*/
function toInt256(uint256 value) internal pure returns (int256) {
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
if (value > uint256(type(int256).max)) {
revert SafeCastOverflowedUintToInt(value);
}
return int256(value);
}
}
IMigratableEntity.sol 36 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IMigratableEntity {
error AlreadyInitialized();
error NotFactory();
error NotInitialized();
/**
* @notice Get the factory's address.
* @return address of the factory
*/
function FACTORY() external view returns (address);
/**
* @notice Get the entity's version.
* @return version of the entity
* @dev Starts from 1.
*/
function version() external view returns (uint64);
/**
* @notice Initialize this entity contract by using a given data and setting a particular version and owner.
* @param initialVersion initial version of the entity
* @param owner initial owner of the entity
* @param data some data to use
*/
function initialize(uint64 initialVersion, address owner, bytes calldata data) external;
/**
* @notice Migrate this entity to a particular newer version using a given data.
* @param newVersion new version of the entity
* @param data some data to use
*/
function migrate(uint64 newVersion, bytes calldata data) external;
}
IVaultStorage.sol 233 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IVaultStorage {
error InvalidTimestamp();
error NoPreviousEpoch();
/**
* @notice Get a deposit whitelist enabler/disabler's role.
* @return identifier of the whitelist enabler/disabler role
*/
function DEPOSIT_WHITELIST_SET_ROLE() external view returns (bytes32);
/**
* @notice Get a depositor whitelist status setter's role.
* @return identifier of the depositor whitelist status setter role
*/
function DEPOSITOR_WHITELIST_ROLE() external view returns (bytes32);
/**
* @notice Get a deposit limit enabler/disabler's role.
* @return identifier of the deposit limit enabler/disabler role
*/
function IS_DEPOSIT_LIMIT_SET_ROLE() external view returns (bytes32);
/**
* @notice Get a deposit limit setter's role.
* @return identifier of the deposit limit setter role
*/
function DEPOSIT_LIMIT_SET_ROLE() external view returns (bytes32);
/**
* @notice Get the delegator factory's address.
* @return address of the delegator factory
*/
function DELEGATOR_FACTORY() external view returns (address);
/**
* @notice Get the slasher factory's address.
* @return address of the slasher factory
*/
function SLASHER_FACTORY() external view returns (address);
/**
* @notice Get a vault collateral.
* @return address of the underlying collateral
*/
function collateral() external view returns (address);
/**
* @notice Get a burner to issue debt to (e.g., 0xdEaD or some unwrapper contract).
* @return address of the burner
*/
function burner() external view returns (address);
/**
* @notice Get a delegator (it delegates the vault's stake to networks and operators).
* @return address of the delegator
*/
function delegator() external view returns (address);
/**
* @notice Get if the delegator is initialized.
* @return if the delegator is initialized
*/
function isDelegatorInitialized() external view returns (bool);
/**
* @notice Get a slasher (it provides networks a slashing mechanism).
* @return address of the slasher
*/
function slasher() external view returns (address);
/**
* @notice Get if the slasher is initialized.
* @return if the slasher is initialized
*/
function isSlasherInitialized() external view returns (bool);
/**
* @notice Get a time point of the epoch duration set.
* @return time point of the epoch duration set
*/
function epochDurationInit() external view returns (uint48);
/**
* @notice Get a duration of the vault epoch.
* @return duration of the epoch
*/
function epochDuration() external view returns (uint48);
/**
* @notice Get an epoch at a given timestamp.
* @param timestamp time point to get the epoch at
* @return epoch at the timestamp
* @dev Reverts if the timestamp is less than the start of the epoch 0.
*/
function epochAt(
uint48 timestamp
) external view returns (uint256);
/**
* @notice Get a current vault epoch.
* @return current epoch
*/
function currentEpoch() external view returns (uint256);
/**
* @notice Get a start of the current vault epoch.
* @return start of the current epoch
*/
function currentEpochStart() external view returns (uint48);
/**
* @notice Get a start of the previous vault epoch.
* @return start of the previous epoch
* @dev Reverts if the current epoch is 0.
*/
function previousEpochStart() external view returns (uint48);
/**
* @notice Get a start of the next vault epoch.
* @return start of the next epoch
*/
function nextEpochStart() external view returns (uint48);
/**
* @notice Get if the deposit whitelist is enabled.
* @return if the deposit whitelist is enabled
*/
function depositWhitelist() external view returns (bool);
/**
* @notice Get if a given account is whitelisted as a depositor.
* @param account address to check
* @return if the account is whitelisted as a depositor
*/
function isDepositorWhitelisted(
address account
) external view returns (bool);
/**
* @notice Get if the deposit limit is set.
* @return if the deposit limit is set
*/
function isDepositLimit() external view returns (bool);
/**
* @notice Get a deposit limit (maximum amount of the active stake that can be in the vault simultaneously).
* @return deposit limit
*/
function depositLimit() external view returns (uint256);
/**
* @notice Get a total number of active shares in the vault at a given timestamp using a hint.
* @param timestamp time point to get the total number of active shares at
* @param hint hint for the checkpoint index
* @return total number of active shares at the timestamp
*/
function activeSharesAt(uint48 timestamp, bytes memory hint) external view returns (uint256);
/**
* @notice Get a total number of active shares in the vault.
* @return total number of active shares
*/
function activeShares() external view returns (uint256);
/**
* @notice Get a total amount of active stake in the vault at a given timestamp using a hint.
* @param timestamp time point to get the total active stake at
* @param hint hint for the checkpoint index
* @return total amount of active stake at the timestamp
*/
function activeStakeAt(uint48 timestamp, bytes memory hint) external view returns (uint256);
/**
* @notice Get a total amount of active stake in the vault.
* @return total amount of active stake
*/
function activeStake() external view returns (uint256);
/**
* @notice Get a total number of active shares for a particular account at a given timestamp using a hint.
* @param account account to get the number of active shares for
* @param timestamp time point to get the number of active shares for the account at
* @param hint hint for the checkpoint index
* @return number of active shares for the account at the timestamp
*/
function activeSharesOfAt(address account, uint48 timestamp, bytes memory hint) external view returns (uint256);
/**
* @notice Get a number of active shares for a particular account.
* @param account account to get the number of active shares for
* @return number of active shares for the account
*/
function activeSharesOf(
address account
) external view returns (uint256);
/**
* @notice Get a total amount of the withdrawals at a given epoch.
* @param epoch epoch to get the total amount of the withdrawals at
* @return total amount of the withdrawals at the epoch
*/
function withdrawals(
uint256 epoch
) external view returns (uint256);
/**
* @notice Get a total number of withdrawal shares at a given epoch.
* @param epoch epoch to get the total number of withdrawal shares at
* @return total number of withdrawal shares at the epoch
*/
function withdrawalShares(
uint256 epoch
) external view returns (uint256);
/**
* @notice Get a number of withdrawal shares for a particular account at a given epoch (zero if claimed).
* @param epoch epoch to get the number of withdrawal shares for the account at
* @param account account to get the number of withdrawal shares for
* @return number of withdrawal shares for the account at the epoch
*/
function withdrawalSharesOf(uint256 epoch, address account) external view returns (uint256);
/**
* @notice Get if the withdrawals are claimed for a particular account at a given epoch.
* @param epoch epoch to check the withdrawals for the account at
* @param account account to check the withdrawals for
* @return if the withdrawals are claimed for the account at the epoch
*/
function isWithdrawalsClaimed(uint256 epoch, address account) external view returns (bool);
}
Checkpoints.sol 603 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/structs/Checkpoints.sol)
// This file was procedurally generated from scripts/generate/templates/Checkpoints.js.
pragma solidity ^0.8.20;
import {Math} from "../math/Math.sol";
/**
* @dev This library defines the `Trace*` struct, for checkpointing values as they change at different points in
* time, and later looking up past values by block number. See {Votes} as an example.
*
* To create a history of checkpoints define a variable type `Checkpoints.Trace*` in your contract, and store a new
* checkpoint for the current transaction block using the {push} function.
*/
library Checkpoints {
/**
* @dev A value was attempted to be inserted on a past checkpoint.
*/
error CheckpointUnorderedInsertion();
struct Trace224 {
Checkpoint224[] _checkpoints;
}
struct Checkpoint224 {
uint32 _key;
uint224 _value;
}
/**
* @dev Pushes a (`key`, `value`) pair into a Trace224 so that it is stored as the checkpoint.
*
* Returns previous value and new value.
*
* IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint32).max` key set will disable the
* library.
*/
function push(Trace224 storage self, uint32 key, uint224 value) internal returns (uint224, uint224) {
return _insert(self._checkpoints, key, value);
}
/**
* @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if
* there is none.
*/
function lowerLookup(Trace224 storage self, uint32 key) internal view returns (uint224) {
uint256 len = self._checkpoints.length;
uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);
return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;
}
/**
* @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero
* if there is none.
*/
function upperLookup(Trace224 storage self, uint32 key) internal view returns (uint224) {
uint256 len = self._checkpoints.length;
uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero
* if there is none.
*
* NOTE: This is a variant of {upperLookup} that is optimised to find "recent" checkpoint (checkpoints with high
* keys).
*/
function upperLookupRecent(Trace224 storage self, uint32 key) internal view returns (uint224) {
uint256 len = self._checkpoints.length;
uint256 low = 0;
uint256 high = len;
if (len > 5) {
uint256 mid = len - Math.sqrt(len);
if (key < _unsafeAccess(self._checkpoints, mid)._key) {
high = mid;
} else {
low = mid + 1;
}
}
uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.
*/
function latest(Trace224 storage self) internal view returns (uint224) {
uint256 pos = self._checkpoints.length;
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value
* in the most recent checkpoint.
*/
function latestCheckpoint(Trace224 storage self) internal view returns (bool exists, uint32 _key, uint224 _value) {
uint256 pos = self._checkpoints.length;
if (pos == 0) {
return (false, 0, 0);
} else {
Checkpoint224 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);
return (true, ckpt._key, ckpt._value);
}
}
/**
* @dev Returns the number of checkpoint.
*/
function length(Trace224 storage self) internal view returns (uint256) {
return self._checkpoints.length;
}
/**
* @dev Returns checkpoint at given position.
*/
function at(Trace224 storage self, uint32 pos) internal view returns (Checkpoint224 memory) {
return self._checkpoints[pos];
}
/**
* @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,
* or by updating the last one.
*/
function _insert(Checkpoint224[] storage self, uint32 key, uint224 value) private returns (uint224, uint224) {
uint256 pos = self.length;
if (pos > 0) {
// Copying to memory is important here.
Checkpoint224 memory last = _unsafeAccess(self, pos - 1);
// Checkpoint keys must be non-decreasing.
if (last._key > key) {
revert CheckpointUnorderedInsertion();
}
// Update or push new checkpoint
if (last._key == key) {
_unsafeAccess(self, pos - 1)._value = value;
} else {
self.push(Checkpoint224({_key: key, _value: value}));
}
return (last._value, value);
} else {
self.push(Checkpoint224({_key: key, _value: value}));
return (0, value);
}
}
/**
* @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`
* if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive
* `high`.
*
* WARNING: `high` should not be greater than the array's length.
*/
function _upperBinaryLookup(
Checkpoint224[] storage self,
uint32 key,
uint256 low,
uint256 high
) private view returns (uint256) {
while (low < high) {
uint256 mid = Math.average(low, high);
if (_unsafeAccess(self, mid)._key > key) {
high = mid;
} else {
low = mid + 1;
}
}
return high;
}
/**
* @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or
* `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and
* exclusive `high`.
*
* WARNING: `high` should not be greater than the array's length.
*/
function _lowerBinaryLookup(
Checkpoint224[] storage self,
uint32 key,
uint256 low,
uint256 high
) private view returns (uint256) {
while (low < high) {
uint256 mid = Math.average(low, high);
if (_unsafeAccess(self, mid)._key < key) {
low = mid + 1;
} else {
high = mid;
}
}
return high;
}
/**
* @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.
*/
function _unsafeAccess(
Checkpoint224[] storage self,
uint256 pos
) private pure returns (Checkpoint224 storage result) {
assembly {
mstore(0, self.slot)
result.slot := add(keccak256(0, 0x20), pos)
}
}
struct Trace208 {
Checkpoint208[] _checkpoints;
}
struct Checkpoint208 {
uint48 _key;
uint208 _value;
}
/**
* @dev Pushes a (`key`, `value`) pair into a Trace208 so that it is stored as the checkpoint.
*
* Returns previous value and new value.
*
* IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint48).max` key set will disable the
* library.
*/
function push(Trace208 storage self, uint48 key, uint208 value) internal returns (uint208, uint208) {
return _insert(self._checkpoints, key, value);
}
/**
* @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if
* there is none.
*/
function lowerLookup(Trace208 storage self, uint48 key) internal view returns (uint208) {
uint256 len = self._checkpoints.length;
uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);
return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;
}
/**
* @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero
* if there is none.
*/
function upperLookup(Trace208 storage self, uint48 key) internal view returns (uint208) {
uint256 len = self._checkpoints.length;
uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero
* if there is none.
*
* NOTE: This is a variant of {upperLookup} that is optimised to find "recent" checkpoint (checkpoints with high
* keys).
*/
function upperLookupRecent(Trace208 storage self, uint48 key) internal view returns (uint208) {
uint256 len = self._checkpoints.length;
uint256 low = 0;
uint256 high = len;
if (len > 5) {
uint256 mid = len - Math.sqrt(len);
if (key < _unsafeAccess(self._checkpoints, mid)._key) {
high = mid;
} else {
low = mid + 1;
}
}
uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.
*/
function latest(Trace208 storage self) internal view returns (uint208) {
uint256 pos = self._checkpoints.length;
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value
* in the most recent checkpoint.
*/
function latestCheckpoint(Trace208 storage self) internal view returns (bool exists, uint48 _key, uint208 _value) {
uint256 pos = self._checkpoints.length;
if (pos == 0) {
return (false, 0, 0);
} else {
Checkpoint208 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);
return (true, ckpt._key, ckpt._value);
}
}
/**
* @dev Returns the number of checkpoint.
*/
function length(Trace208 storage self) internal view returns (uint256) {
return self._checkpoints.length;
}
/**
* @dev Returns checkpoint at given position.
*/
function at(Trace208 storage self, uint32 pos) internal view returns (Checkpoint208 memory) {
return self._checkpoints[pos];
}
/**
* @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,
* or by updating the last one.
*/
function _insert(Checkpoint208[] storage self, uint48 key, uint208 value) private returns (uint208, uint208) {
uint256 pos = self.length;
if (pos > 0) {
// Copying to memory is important here.
Checkpoint208 memory last = _unsafeAccess(self, pos - 1);
// Checkpoint keys must be non-decreasing.
if (last._key > key) {
revert CheckpointUnorderedInsertion();
}
// Update or push new checkpoint
if (last._key == key) {
_unsafeAccess(self, pos - 1)._value = value;
} else {
self.push(Checkpoint208({_key: key, _value: value}));
}
return (last._value, value);
} else {
self.push(Checkpoint208({_key: key, _value: value}));
return (0, value);
}
}
/**
* @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`
* if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive
* `high`.
*
* WARNING: `high` should not be greater than the array's length.
*/
function _upperBinaryLookup(
Checkpoint208[] storage self,
uint48 key,
uint256 low,
uint256 high
) private view returns (uint256) {
while (low < high) {
uint256 mid = Math.average(low, high);
if (_unsafeAccess(self, mid)._key > key) {
high = mid;
} else {
low = mid + 1;
}
}
return high;
}
/**
* @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or
* `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and
* exclusive `high`.
*
* WARNING: `high` should not be greater than the array's length.
*/
function _lowerBinaryLookup(
Checkpoint208[] storage self,
uint48 key,
uint256 low,
uint256 high
) private view returns (uint256) {
while (low < high) {
uint256 mid = Math.average(low, high);
if (_unsafeAccess(self, mid)._key < key) {
low = mid + 1;
} else {
high = mid;
}
}
return high;
}
/**
* @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.
*/
function _unsafeAccess(
Checkpoint208[] storage self,
uint256 pos
) private pure returns (Checkpoint208 storage result) {
assembly {
mstore(0, self.slot)
result.slot := add(keccak256(0, 0x20), pos)
}
}
struct Trace160 {
Checkpoint160[] _checkpoints;
}
struct Checkpoint160 {
uint96 _key;
uint160 _value;
}
/**
* @dev Pushes a (`key`, `value`) pair into a Trace160 so that it is stored as the checkpoint.
*
* Returns previous value and new value.
*
* IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint96).max` key set will disable the
* library.
*/
function push(Trace160 storage self, uint96 key, uint160 value) internal returns (uint160, uint160) {
return _insert(self._checkpoints, key, value);
}
/**
* @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if
* there is none.
*/
function lowerLookup(Trace160 storage self, uint96 key) internal view returns (uint160) {
uint256 len = self._checkpoints.length;
uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);
return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;
}
/**
* @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero
* if there is none.
*/
function upperLookup(Trace160 storage self, uint96 key) internal view returns (uint160) {
uint256 len = self._checkpoints.length;
uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero
* if there is none.
*
* NOTE: This is a variant of {upperLookup} that is optimised to find "recent" checkpoint (checkpoints with high
* keys).
*/
function upperLookupRecent(Trace160 storage self, uint96 key) internal view returns (uint160) {
uint256 len = self._checkpoints.length;
uint256 low = 0;
uint256 high = len;
if (len > 5) {
uint256 mid = len - Math.sqrt(len);
if (key < _unsafeAccess(self._checkpoints, mid)._key) {
high = mid;
} else {
low = mid + 1;
}
}
uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints.
*/
function latest(Trace160 storage self) internal view returns (uint160) {
uint256 pos = self._checkpoints.length;
return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
}
/**
* @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value
* in the most recent checkpoint.
*/
function latestCheckpoint(Trace160 storage self) internal view returns (bool exists, uint96 _key, uint160 _value) {
uint256 pos = self._checkpoints.length;
if (pos == 0) {
return (false, 0, 0);
} else {
Checkpoint160 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1);
return (true, ckpt._key, ckpt._value);
}
}
/**
* @dev Returns the number of checkpoint.
*/
function length(Trace160 storage self) internal view returns (uint256) {
return self._checkpoints.length;
}
/**
* @dev Returns checkpoint at given position.
*/
function at(Trace160 storage self, uint32 pos) internal view returns (Checkpoint160 memory) {
return self._checkpoints[pos];
}
/**
* @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint,
* or by updating the last one.
*/
function _insert(Checkpoint160[] storage self, uint96 key, uint160 value) private returns (uint160, uint160) {
uint256 pos = self.length;
if (pos > 0) {
// Copying to memory is important here.
Checkpoint160 memory last = _unsafeAccess(self, pos - 1);
// Checkpoint keys must be non-decreasing.
if (last._key > key) {
revert CheckpointUnorderedInsertion();
}
// Update or push new checkpoint
if (last._key == key) {
_unsafeAccess(self, pos - 1)._value = value;
} else {
self.push(Checkpoint160({_key: key, _value: value}));
}
return (last._value, value);
} else {
self.push(Checkpoint160({_key: key, _value: value}));
return (0, value);
}
}
/**
* @dev Return the index of the last (most recent) checkpoint with key lower or equal than the search key, or `high`
* if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive
* `high`.
*
* WARNING: `high` should not be greater than the array's length.
*/
function _upperBinaryLookup(
Checkpoint160[] storage self,
uint96 key,
uint256 low,
uint256 high
) private view returns (uint256) {
while (low < high) {
uint256 mid = Math.average(low, high);
if (_unsafeAccess(self, mid)._key > key) {
high = mid;
} else {
low = mid + 1;
}
}
return high;
}
/**
* @dev Return the index of the first (oldest) checkpoint with key is greater or equal than the search key, or
* `high` if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and
* exclusive `high`.
*
* WARNING: `high` should not be greater than the array's length.
*/
function _lowerBinaryLookup(
Checkpoint160[] storage self,
uint96 key,
uint256 low,
uint256 high
) private view returns (uint256) {
while (low < high) {
uint256 mid = Math.average(low, high);
if (_unsafeAccess(self, mid)._key < key) {
low = mid + 1;
} else {
high = mid;
}
}
return high;
}
/**
* @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.
*/
function _unsafeAccess(
Checkpoint160[] storage self,
uint256 pos
) private pure returns (Checkpoint160 storage result) {
assembly {
mstore(0, self.slot)
result.slot := add(keccak256(0, 0x20), pos)
}
}
}
IERC20.sol 79 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @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 value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` 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 value) external returns (bool);
}
ContextUpgradeable.sol 34 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
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;
}
}
draft-IERC6093.sol 161 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard ERC20 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
*/
interface IERC20Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC20InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC20InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
* @param spender Address that may be allowed to operate on tokens without being their owner.
* @param allowance Amount of tokens a `spender` is allowed to operate with.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC20InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `spender` to be approved. Used in approvals.
* @param spender Address that may be allowed to operate on tokens without being their owner.
*/
error ERC20InvalidSpender(address spender);
}
/**
* @dev Standard ERC721 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
*/
interface IERC721Errors {
/**
* @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
* Used in balance queries.
* @param owner Address of the current owner of a token.
*/
error ERC721InvalidOwner(address owner);
/**
* @dev Indicates a `tokenId` whose `owner` is the zero address.
* @param tokenId Identifier number of a token.
*/
error ERC721NonexistentToken(uint256 tokenId);
/**
* @dev Indicates an error related to the ownership over a particular token. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param tokenId Identifier number of a token.
* @param owner Address of the current owner of a token.
*/
error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC721InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC721InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param tokenId Identifier number of a token.
*/
error ERC721InsufficientApproval(address operator, uint256 tokenId);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC721InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC721InvalidOperator(address operator);
}
/**
* @dev Standard ERC1155 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
*/
interface IERC1155Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
* @param tokenId Identifier number of a token.
*/
error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC1155InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC1155InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param owner Address of the current owner of a token.
*/
error ERC1155MissingApprovalForAll(address operator, address owner);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC1155InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC1155InvalidOperator(address operator);
/**
* @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
* Used in batch transfers.
* @param idsLength Length of the array of token identifiers
* @param valuesLength Length of the array of token amounts
*/
error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}
Initializable.sol 228 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.20;
/**
* @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 Storage of the initializable contract.
*
* It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
* when using with upgradeable contracts.
*
* @custom:storage-location erc7201:openzeppelin.storage.Initializable
*/
struct InitializableStorage {
/**
* @dev Indicates that the contract has been initialized.
*/
uint64 _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool _initializing;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;
/**
* @dev The contract is already initialized.
*/
error InvalidInitialization();
/**
* @dev The contract is not initializing.
*/
error NotInitializing();
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint64 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 in the context of a constructor an `initializer` may be invoked any
* number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
* production.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
// Cache values to avoid duplicated sloads
bool isTopLevelCall = !$._initializing;
uint64 initialized = $._initialized;
// Allowed calls:
// - initialSetup: the contract is not in the initializing state and no previous version was
// initialized
// - construction: the contract is initialized at version 1 (no reininitialization) and the
// current contract is just being deployed
bool initialSetup = initialized == 0 && isTopLevelCall;
bool construction = initialized == 1 && address(this).code.length == 0;
if (!initialSetup && !construction) {
revert InvalidInitialization();
}
$._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 2**64 - 1 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint64 version) {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
if ($._initializing || $._initialized >= version) {
revert InvalidInitialization();
}
$._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() {
_checkInitializing();
_;
}
/**
* @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
*/
function _checkInitializing() internal view virtual {
if (!_isInitializing()) {
revert NotInitializing();
}
}
/**
* @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 {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
if ($._initializing) {
revert InvalidInitialization();
}
if ($._initialized != type(uint64).max) {
$._initialized = type(uint64).max;
emit Initialized(type(uint64).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint64) {
return _getInitializableStorage()._initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _getInitializableStorage()._initializing;
}
/**
* @dev Returns a pointer to the storage namespace.
*/
// solhint-disable-next-line var-name-mixedcase
function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
assembly {
$.slot := INITIALIZABLE_STORAGE
}
}
}
IERC20Permit.sol 90 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.20;
/**
* @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);
}
Address.sol 159 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)
pragma solidity ^0.8.20;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev The ETH balance of the account is not enough to perform the operation.
*/
error AddressInsufficientBalance(address account);
/**
* @dev There's no code at `target` (it is not a contract).
*/
error AddressEmptyCode(address target);
/**
* @dev A call to an address target failed. The target may have reverted.
*/
error FailedInnerCall();
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
if (address(this).balance < amount) {
revert AddressInsufficientBalance(address(this));
}
(bool success, ) = recipient.call{value: amount}("");
if (!success) {
revert FailedInnerCall();
}
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason or custom error, it is bubbled
* up by this function (like regular Solidity function calls). However, if
* the call reverted with no returned reason, this function reverts with a
* {FailedInnerCall} error.
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
if (address(this).balance < value) {
revert AddressInsufficientBalance(address(this));
}
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
* was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
* unsuccessful call.
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata
) internal view returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
// only check if target is a contract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
if (returndata.length == 0 && target.code.length == 0) {
revert AddressEmptyCode(target);
}
return returndata;
}
}
/**
* @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
* revert reason or with a default {FailedInnerCall} error.
*/
function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
return returndata;
}
}
/**
* @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
*/
function _revert(bytes memory returndata) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert FailedInnerCall();
}
}
}
OwnableUpgradeable.sol 119 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {ContextUpgradeable} from "../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.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
/// @custom:storage-location erc7201:openzeppelin.storage.Ownable
struct OwnableStorage {
address _owner;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;
function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
assembly {
$.slot := OwnableStorageLocation
}
}
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
function __Ownable_init(address initialOwner) internal onlyInitializing {
__Ownable_init_unchained(initialOwner);
}
function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
OwnableStorage storage $ = _getOwnableStorage();
return $._owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
OwnableStorage storage $ = _getOwnableStorage();
address oldOwner = $._owner;
$._owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
ReentrancyGuardUpgradeable.sol 105 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuardUpgradeable is Initializable {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant NOT_ENTERED = 1;
uint256 private constant ENTERED = 2;
/// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
struct ReentrancyGuardStorage {
uint256 _status;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;
function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
assembly {
$.slot := ReentrancyGuardStorageLocation
}
}
/**
* @dev Unauthorized reentrant call.
*/
error ReentrancyGuardReentrantCall();
function __ReentrancyGuard_init() internal onlyInitializing {
__ReentrancyGuard_init_unchained();
}
function __ReentrancyGuard_init_unchained() internal onlyInitializing {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
$._status = NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
// On the first call to nonReentrant, _status will be NOT_ENTERED
if ($._status == ENTERED) {
revert ReentrancyGuardReentrantCall();
}
// Any calls to nonReentrant after this point will fail
$._status = ENTERED;
}
function _nonReentrantAfter() private {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
$._status = NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
return $._status == ENTERED;
}
}
StaticDelegateCallable.sol 17 lines
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.25;
import {IStaticDelegateCallable} from "../../interfaces/common/IStaticDelegateCallable.sol";
abstract contract StaticDelegateCallable is IStaticDelegateCallable {
/**
* @inheritdoc IStaticDelegateCallable
*/
function staticDelegateCall(address target, bytes calldata data) external {
(bool success, bytes memory returndata) = target.delegatecall(data);
bytes memory revertData = abi.encode(success, returndata);
assembly {
revert(add(32, revertData), mload(revertData))
}
}
}
IEntity.sol 26 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IEntity {
error NotInitialized();
/**
* @notice Get the factory's address.
* @return address of the factory
*/
function FACTORY() external view returns (address);
/**
* @notice Get the entity's type.
* @return type of the entity
*/
function TYPE() external view returns (uint64);
/**
* @notice Initialize this entity contract by using a given data.
* @param data some data to use
*/
function initialize(
bytes calldata data
) external;
}
IAccessControl.sol 98 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/IAccessControl.sol)
pragma solidity ^0.8.20;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControl {
/**
* @dev The `account` is missing a role.
*/
error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);
/**
* @dev The caller of a function is not the expected one.
*
* NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
*/
error AccessControlBadConfirmation();
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*/
event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `callerConfirmation`.
*/
function renounceRole(bytes32 role, address callerConfirmation) external;
}
ERC165Upgradeable.sol 33 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)
pragma solidity ^0.8.20;
import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*/
abstract contract ERC165Upgradeable is Initializable, IERC165 {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
IStaticDelegateCallable.sol 12 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IStaticDelegateCallable {
/**
* @notice Make a delegatecall from this contract to a given target contract with a particular data (always reverts with a return data).
* @param target address of the contract to make a delegatecall to
* @param data data to make a delegatecall with
* @dev It allows to use this contract's storage on-chain.
*/
function staticDelegateCall(address target, bytes calldata data) external;
}
IERC165.sol 25 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)
pragma solidity ^0.8.20;
/**
* @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);
}
Read Contract
DEFAULT_ADMIN_ROLE 0xa217fddf → bytes32
DELEGATOR_FACTORY 0x6da3e06d → address
DEPOSITOR_WHITELIST_ROLE 0x1b66c9e1 → bytes32
DEPOSIT_LIMIT_SET_ROLE 0xa21a1df9 → bytes32
DEPOSIT_WHITELIST_SET_ROLE 0xdb388715 → bytes32
FACTORY 0x2dd31000 → address
IS_DEPOSIT_LIMIT_SET_ROLE 0x1415519b → bytes32
SLASHER_FACTORY 0x87df0788 → address
activeBalanceOf 0x59f769a9 → uint256
activeBalanceOfAt 0xefb559d6 → uint256
activeShares 0xbfefcd7b → uint256
activeSharesAt 0x50f22068 → uint256
activeSharesOf 0x9d66201b → uint256
activeSharesOfAt 0x2d73c69c → uint256
activeStake 0xbd49c35f → uint256
activeStakeAt 0x810da75d → uint256
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
burner 0x27810b6e → address
collateral 0xd8dfeb45 → address
currentEpoch 0x76671808 → uint256
currentEpochStart 0x61a8c8c4 → uint48
decimals 0x313ce567 → uint8
delegator 0xce9b7930 → address
depositLimit 0xecf70858 → uint256
depositWhitelist 0x48d3b775 → bool
epochAt 0x7953b33b → uint256
epochDuration 0x4ff0876a → uint48
epochDurationInit 0x46361671 → uint48
getRoleAdmin 0x248a9ca3 → bytes32
hasRole 0x91d14854 → bool
isDelegatorInitialized 0x50861adc → bool
isDepositLimit 0xa1b12202 → bool
isDepositorWhitelisted 0x794b15b7 → bool
isInitialized 0x392e53cd → bool
isSlasherInitialized 0x6ec1e3f8 → bool
isWithdrawalsClaimed 0xa5d03223 → bool
name 0x06fdde03 → string
nextEpochStart 0x73790ab3 → uint48
owner 0x8da5cb5b → address
previousEpochStart 0x281f5752 → uint48
slashableBalanceOf 0xc31e8dd7 → uint256
slasher 0xb1344271 → address
supportsInterface 0x01ffc9a7 → bool
symbol 0x95d89b41 → string
totalStake 0x8b0e9f3f → uint256
totalSupply 0x18160ddd → uint256
version 0x54fd4d50 → uint64
withdrawalShares 0xafba70ad → uint256
withdrawalSharesOf 0xa3b54172 → uint256
withdrawals 0x5cc07076 → uint256
withdrawalsOf 0xf5e7ee0f → uint256
Write Contract 23 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address spender
uint256 value
returns: bool
claim 0xaad3ec96
address recipient
uint256 epoch
returns: uint256
claimBatch 0x7c04c80a
address recipient
uint256[] epochs
returns: uint256
deposit 0x47e7ef24
address onBehalfOf
uint256 amount
returns: uint256, uint256
grantRole 0x2f2ff15d
bytes32 role
address account
initialize 0x57ec83cc
uint64 initialVersion
address owner_
bytes data
migrate 0x2abe3048
uint64 newVersion
bytes data
onSlash 0x7278e31c
uint256 amount
uint48 captureTimestamp
returns: uint256
redeem 0x1e9a6950
address claimer
uint256 shares
returns: uint256, uint256
renounceOwnership 0x715018a6
No parameters
renounceRole 0x36568abe
bytes32 role
address callerConfirmation
revokeRole 0xd547741f
bytes32 role
address account
setDelegator 0x83cd9cc3
address delegator_
setDepositLimit 0xbdc8144b
uint256 limit
setDepositWhitelist 0x4105a7dd
bool status
setDepositorWhitelistStatus 0xa2861466
address account
bool status
setIsDepositLimit 0x5346e34f
bool status
setSlasher 0xaabc2496
address slasher_
staticDelegateCall 0x9f86fd85
address target
bytes data
transfer 0xa9059cbb
address to
uint256 value
returns: bool
transferFrom 0x23b872dd
address from
address to
uint256 value
returns: bool
transferOwnership 0xf2fde38b
address newOwner
withdraw 0xf3fef3a3
address claimer
uint256 amount
returns: uint256, uint256
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