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Contract Name:
YieldExtractor
Compiler Version
v0.8.28+commit.7893614a
Optimization Enabled:
Yes with 10000 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.28;
import {PausableUpgradeable} from "@openzeppelin-upgradeable/contracts/utils/PausableUpgradeable.sol";
import {AccessControlDefaultAdminRulesUpgradeable} from
"@openzeppelin-upgradeable/contracts/access/extensions/AccessControlDefaultAdminRulesUpgradeable.sol";
import {ERC1155HolderUpgradeable} from
"@openzeppelin-upgradeable/contracts/token/ERC1155/utils/ERC1155HolderUpgradeable.sol";
import {UUPSUpgradeable} from "@openzeppelin-upgradeable/contracts/proxy/utils/UUPSUpgradeable.sol";
import {MerkleProof} from "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import {SafeERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {LibEvents} from "src/libraries/LibEvents.sol";
import {LibErrors} from "src/libraries/LibErrors.sol";
import {LibRoles} from "src/libraries/LibRoles.sol";
import {IFundsFacet} from "src/interfaces/IFundsFacet.sol";
/**
* @title YieldExtractor
* @notice Contract for distributing yield to users through Merkle proofs
* @dev This contract manages the distribution of yield shares to users based on their earned yield
* in the YelayLite vault system. The distribution happens through a Merkle tree system where:
* - A root manager (YIELD_PUBLISHER) periodically adds new Merkle roots containing user yield data
* - Each root represents a cycle of yield
* - Each vault has its own cycle count and root
* - Clients / Users can claim the yield by providing valid Merkle proofs
* - The contract tracks claimed yield to prevent double-claiming
* - Yield is distributed as the underlying token following direct redeemal of the shares on the vault.
*
* Key features:
* - Merkle-based yield distribution system
* - Cycle-based yield tracking
* - Double-claim prevention
* - Pausable claim functionality
* - Upgradeable contract design
*/
contract YieldExtractor is
PausableUpgradeable,
ERC1155HolderUpgradeable,
AccessControlDefaultAdminRulesUpgradeable,
UUPSUpgradeable
{
using SafeERC20 for IERC20;
uint256 constant YIELD_PROJECT_ID = 0;
/**
* @notice Request data structure for claiming yield
* @param yelayLiteVault Address of the YelayLite vault contract
* @param projectId ID of the project in the vault
* @param cycle Yield cycle number
* @param yieldSharesTotal Total amount of yield shares to be claimed
* @param proof Merkle proof array for verification
*/
struct ClaimRequest {
address yelayLiteVault;
uint256 projectId;
uint256 cycle;
uint256 yieldSharesTotal;
bytes32[] proof;
}
/**
* @notice Merkle tree root data structure
* @param hash Merkle root hash
* @param blockNumber Block number at which yield share values were calculated
*/
struct Root {
bytes32 hash;
uint256 blockNumber;
}
/**
* @notice Current cycle count for yield distributions per vault
* @dev Mapping structure: vaultAddress => cycleCount
*/
mapping(address => uint256) public cycleCount;
/**
* @notice Merkle tree root for each cycle per vault
* @dev Mapping structure: vaultAddress => cycleCount => Root
*/
mapping(address => mapping(uint256 => Root)) public roots;
/**
* @notice Tracks whether a specific leaf has been claimed
*/
mapping(bytes32 => bool) public isLeafClaimed;
/**
* @notice Tracks yield shares claimed by users
* @dev Mapping structure: user => yelayLiteVault => projectId => shares
*/
mapping(address => mapping(address => mapping(uint256 => uint256))) public yieldSharesClaimed;
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
/**
* @dev Initializes the contract with the given owner.
* @param owner The address of the owner.
* @param _yieldPublisher The yield publisher address with rights to update Merkle root
*/
function initialize(address owner, address _yieldPublisher) public initializer {
__ERC1155Holder_init();
__UUPSUpgradeable_init();
__Pausable_init();
__AccessControlDefaultAdminRules_init(0, owner);
_grantRole(LibRoles.YIELD_PUBLISHER, _yieldPublisher);
}
function supportsInterface(bytes4 interfaceId)
public
view
override(ERC1155HolderUpgradeable, AccessControlDefaultAdminRulesUpgradeable)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
/**
* @notice Pause claiming
*/
function pause() external onlyRole(LibRoles.PAUSER) {
_pause();
}
/**
* @notice Unpause claiming
*/
function unpause() external onlyRole(LibRoles.UNPAUSER) {
_unpause();
}
/**
* @notice Add a Merkle tree root for a new cycle for a given vault
* @param root Root to add
* @param yelayLiteVault Address of the vault
*/
function addTreeRoot(Root memory root, address yelayLiteVault) external onlyRole(LibRoles.YIELD_PUBLISHER) {
cycleCount[yelayLiteVault]++;
roots[yelayLiteVault][cycleCount[yelayLiteVault]] = root;
emit LibEvents.PoolRootAdded(yelayLiteVault, cycleCount[yelayLiteVault], root.hash, root.blockNumber);
}
/**
* @notice Update existing root for a given cycle for a given vault
* @param root New root
* @param cycle Cycle to update
* @param yelayLiteVault Address of the vault
*/
function updateTreeRoot(Root memory root, uint256 cycle, address yelayLiteVault)
external
onlyRole(LibRoles.YIELD_PUBLISHER)
{
require(cycle <= cycleCount[yelayLiteVault], LibErrors.InvalidCycle());
Root memory previousRoot = roots[yelayLiteVault][cycle];
roots[yelayLiteVault][cycle] = root;
emit LibEvents.PoolRootUpdated(yelayLiteVault, cycle, previousRoot.hash, root.hash, root.blockNumber);
}
/**
* @notice Claim incentives by submitting a Merkle proof
* @param data Array of claim requests
*/
function claim(ClaimRequest[] calldata data) external whenNotPaused {
for (uint256 i; i < data.length; ++i) {
bytes32 leaf = _getLeaf(data[i], msg.sender);
require(!isLeafClaimed[leaf], LibErrors.ProofAlreadyClaimed(i));
require(_verify(data[i], leaf), LibErrors.InvalidProof(i));
isLeafClaimed[leaf] = true;
uint256 alreadyClaimed = yieldSharesClaimed[msg.sender][data[i].yelayLiteVault][data[i].projectId];
uint256 toClaim = data[i].yieldSharesTotal - alreadyClaimed;
yieldSharesClaimed[msg.sender][data[i].yelayLiteVault][data[i].projectId] = data[i].yieldSharesTotal;
IFundsFacet(data[i].yelayLiteVault).redeem(toClaim, YIELD_PROJECT_ID, msg.sender);
emit LibEvents.YieldClaimed(msg.sender, data[i].yelayLiteVault, data[i].projectId, data[i].cycle, toClaim);
}
}
/**
* @notice Verify a Merkle proof for given claim request
* @param data Claim request to verify
* @param user User address for claim request
*/
function verify(ClaimRequest memory data, address user) external view returns (bool) {
return _verify(data, _getLeaf(data, user));
}
/**
* @notice Verifies a Merkle proof for a claim request
* @param data Claim request to verify
* @param leaf Computed leaf node for verification
* @return bool True if the proof is valid
*/
function _verify(ClaimRequest memory data, bytes32 leaf) internal view returns (bool) {
return MerkleProof.verify(data.proof, roots[data.yelayLiteVault][data.cycle].hash, leaf);
}
/**
* @notice Computes the leaf node for a claim request
* @param data Claim request data
* @param user Address of the claiming user
* @return bytes32 Computed leaf node
*/
function _getLeaf(ClaimRequest memory data, address user) internal pure returns (bytes32) {
return keccak256(
bytes.concat(
keccak256(abi.encode(user, data.cycle, data.yelayLiteVault, data.projectId, data.yieldSharesTotal))
)
);
}
/**
* @dev UUPS upgrade authorization function.
* Only the owner may upgrade.
*/
function _authorizeUpgrade(address newImplementation) internal override onlyRole(DEFAULT_ADMIN_ROLE) {}
}// 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;
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/extensions/AccessControlDefaultAdminRules.sol)
pragma solidity ^0.8.20;
import {IAccessControlDefaultAdminRules} from "@openzeppelin/contracts/access/extensions/IAccessControlDefaultAdminRules.sol";
import {AccessControlUpgradeable} from "../AccessControlUpgradeable.sol";
import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {IERC5313} from "@openzeppelin/contracts/interfaces/IERC5313.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";
/**
* @dev Extension of {AccessControl} that allows specifying special rules to manage
* the `DEFAULT_ADMIN_ROLE` holder, which is a sensitive role with special permissions
* over other roles that may potentially have privileged rights in the system.
*
* If a specific role doesn't have an admin role assigned, the holder of the
* `DEFAULT_ADMIN_ROLE` will have the ability to grant it and revoke it.
*
* This contract implements the following risk mitigations on top of {AccessControl}:
*
* * Only one account holds the `DEFAULT_ADMIN_ROLE` since deployment until it's potentially renounced.
* * Enforces a 2-step process to transfer the `DEFAULT_ADMIN_ROLE` to another account.
* * Enforces a configurable delay between the two steps, with the ability to cancel before the transfer is accepted.
* * The delay can be changed by scheduling, see {changeDefaultAdminDelay}.
* * It is not possible to use another role to manage the `DEFAULT_ADMIN_ROLE`.
*
* Example usage:
*
* ```solidity
* contract MyToken is AccessControlDefaultAdminRules {
* constructor() AccessControlDefaultAdminRules(
* 3 days,
* msg.sender // Explicit initial `DEFAULT_ADMIN_ROLE` holder
* ) {}
* }
* ```
*/
abstract contract AccessControlDefaultAdminRulesUpgradeable is Initializable, IAccessControlDefaultAdminRules, IERC5313, AccessControlUpgradeable {
/// @custom:storage-location erc7201:openzeppelin.storage.AccessControlDefaultAdminRules
struct AccessControlDefaultAdminRulesStorage {
// pending admin pair read/written together frequently
address _pendingDefaultAdmin;
uint48 _pendingDefaultAdminSchedule; // 0 == unset
uint48 _currentDelay;
address _currentDefaultAdmin;
// pending delay pair read/written together frequently
uint48 _pendingDelay;
uint48 _pendingDelaySchedule; // 0 == unset
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControlDefaultAdminRules")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant AccessControlDefaultAdminRulesStorageLocation = 0xeef3dac4538c82c8ace4063ab0acd2d15cdb5883aa1dff7c2673abb3d8698400;
function _getAccessControlDefaultAdminRulesStorage() private pure returns (AccessControlDefaultAdminRulesStorage storage $) {
assembly {
$.slot := AccessControlDefaultAdminRulesStorageLocation
}
}
/**
* @dev Sets the initial values for {defaultAdminDelay} and {defaultAdmin} address.
*/
function __AccessControlDefaultAdminRules_init(uint48 initialDelay, address initialDefaultAdmin) internal onlyInitializing {
__AccessControlDefaultAdminRules_init_unchained(initialDelay, initialDefaultAdmin);
}
function __AccessControlDefaultAdminRules_init_unchained(uint48 initialDelay, address initialDefaultAdmin) internal onlyInitializing {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
if (initialDefaultAdmin == address(0)) {
revert AccessControlInvalidDefaultAdmin(address(0));
}
$._currentDelay = initialDelay;
_grantRole(DEFAULT_ADMIN_ROLE, initialDefaultAdmin);
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControlDefaultAdminRules).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC5313-owner}.
*/
function owner() public view virtual returns (address) {
return defaultAdmin();
}
///
/// Override AccessControl role management
///
/**
* @dev See {AccessControl-grantRole}. Reverts for `DEFAULT_ADMIN_ROLE`.
*/
function grantRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
if (role == DEFAULT_ADMIN_ROLE) {
revert AccessControlEnforcedDefaultAdminRules();
}
super.grantRole(role, account);
}
/**
* @dev See {AccessControl-revokeRole}. Reverts for `DEFAULT_ADMIN_ROLE`.
*/
function revokeRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
if (role == DEFAULT_ADMIN_ROLE) {
revert AccessControlEnforcedDefaultAdminRules();
}
super.revokeRole(role, account);
}
/**
* @dev See {AccessControl-renounceRole}.
*
* For the `DEFAULT_ADMIN_ROLE`, it only allows renouncing in two steps by first calling
* {beginDefaultAdminTransfer} to the `address(0)`, so it's required that the {pendingDefaultAdmin} schedule
* has also passed when calling this function.
*
* After its execution, it will not be possible to call `onlyRole(DEFAULT_ADMIN_ROLE)` functions.
*
* NOTE: Renouncing `DEFAULT_ADMIN_ROLE` will leave the contract without a {defaultAdmin},
* thereby disabling any functionality that is only available for it, and the possibility of reassigning a
* non-administrated role.
*/
function renounceRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
if (role == DEFAULT_ADMIN_ROLE && account == defaultAdmin()) {
(address newDefaultAdmin, uint48 schedule) = pendingDefaultAdmin();
if (newDefaultAdmin != address(0) || !_isScheduleSet(schedule) || !_hasSchedulePassed(schedule)) {
revert AccessControlEnforcedDefaultAdminDelay(schedule);
}
delete $._pendingDefaultAdminSchedule;
}
super.renounceRole(role, account);
}
/**
* @dev See {AccessControl-_grantRole}.
*
* For `DEFAULT_ADMIN_ROLE`, it only allows granting if there isn't already a {defaultAdmin} or if the
* role has been previously renounced.
*
* NOTE: Exposing this function through another mechanism may make the `DEFAULT_ADMIN_ROLE`
* assignable again. Make sure to guarantee this is the expected behavior in your implementation.
*/
function _grantRole(bytes32 role, address account) internal virtual override returns (bool) {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
if (role == DEFAULT_ADMIN_ROLE) {
if (defaultAdmin() != address(0)) {
revert AccessControlEnforcedDefaultAdminRules();
}
$._currentDefaultAdmin = account;
}
return super._grantRole(role, account);
}
/**
* @dev See {AccessControl-_revokeRole}.
*/
function _revokeRole(bytes32 role, address account) internal virtual override returns (bool) {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
if (role == DEFAULT_ADMIN_ROLE && account == defaultAdmin()) {
delete $._currentDefaultAdmin;
}
return super._revokeRole(role, account);
}
/**
* @dev See {AccessControl-_setRoleAdmin}. Reverts for `DEFAULT_ADMIN_ROLE`.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual override {
if (role == DEFAULT_ADMIN_ROLE) {
revert AccessControlEnforcedDefaultAdminRules();
}
super._setRoleAdmin(role, adminRole);
}
///
/// AccessControlDefaultAdminRules accessors
///
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function defaultAdmin() public view virtual returns (address) {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
return $._currentDefaultAdmin;
}
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function pendingDefaultAdmin() public view virtual returns (address newAdmin, uint48 schedule) {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
return ($._pendingDefaultAdmin, $._pendingDefaultAdminSchedule);
}
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function defaultAdminDelay() public view virtual returns (uint48) {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
uint48 schedule = $._pendingDelaySchedule;
return (_isScheduleSet(schedule) && _hasSchedulePassed(schedule)) ? $._pendingDelay : $._currentDelay;
}
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function pendingDefaultAdminDelay() public view virtual returns (uint48 newDelay, uint48 schedule) {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
schedule = $._pendingDelaySchedule;
return (_isScheduleSet(schedule) && !_hasSchedulePassed(schedule)) ? ($._pendingDelay, schedule) : (0, 0);
}
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function defaultAdminDelayIncreaseWait() public view virtual returns (uint48) {
return 5 days;
}
///
/// AccessControlDefaultAdminRules public and internal setters for defaultAdmin/pendingDefaultAdmin
///
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function beginDefaultAdminTransfer(address newAdmin) public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
_beginDefaultAdminTransfer(newAdmin);
}
/**
* @dev See {beginDefaultAdminTransfer}.
*
* Internal function without access restriction.
*/
function _beginDefaultAdminTransfer(address newAdmin) internal virtual {
uint48 newSchedule = SafeCast.toUint48(block.timestamp) + defaultAdminDelay();
_setPendingDefaultAdmin(newAdmin, newSchedule);
emit DefaultAdminTransferScheduled(newAdmin, newSchedule);
}
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function cancelDefaultAdminTransfer() public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
_cancelDefaultAdminTransfer();
}
/**
* @dev See {cancelDefaultAdminTransfer}.
*
* Internal function without access restriction.
*/
function _cancelDefaultAdminTransfer() internal virtual {
_setPendingDefaultAdmin(address(0), 0);
}
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function acceptDefaultAdminTransfer() public virtual {
(address newDefaultAdmin, ) = pendingDefaultAdmin();
if (_msgSender() != newDefaultAdmin) {
// Enforce newDefaultAdmin explicit acceptance.
revert AccessControlInvalidDefaultAdmin(_msgSender());
}
_acceptDefaultAdminTransfer();
}
/**
* @dev See {acceptDefaultAdminTransfer}.
*
* Internal function without access restriction.
*/
function _acceptDefaultAdminTransfer() internal virtual {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
(address newAdmin, uint48 schedule) = pendingDefaultAdmin();
if (!_isScheduleSet(schedule) || !_hasSchedulePassed(schedule)) {
revert AccessControlEnforcedDefaultAdminDelay(schedule);
}
_revokeRole(DEFAULT_ADMIN_ROLE, defaultAdmin());
_grantRole(DEFAULT_ADMIN_ROLE, newAdmin);
delete $._pendingDefaultAdmin;
delete $._pendingDefaultAdminSchedule;
}
///
/// AccessControlDefaultAdminRules public and internal setters for defaultAdminDelay/pendingDefaultAdminDelay
///
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function changeDefaultAdminDelay(uint48 newDelay) public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
_changeDefaultAdminDelay(newDelay);
}
/**
* @dev See {changeDefaultAdminDelay}.
*
* Internal function without access restriction.
*/
function _changeDefaultAdminDelay(uint48 newDelay) internal virtual {
uint48 newSchedule = SafeCast.toUint48(block.timestamp) + _delayChangeWait(newDelay);
_setPendingDelay(newDelay, newSchedule);
emit DefaultAdminDelayChangeScheduled(newDelay, newSchedule);
}
/**
* @inheritdoc IAccessControlDefaultAdminRules
*/
function rollbackDefaultAdminDelay() public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
_rollbackDefaultAdminDelay();
}
/**
* @dev See {rollbackDefaultAdminDelay}.
*
* Internal function without access restriction.
*/
function _rollbackDefaultAdminDelay() internal virtual {
_setPendingDelay(0, 0);
}
/**
* @dev Returns the amount of seconds to wait after the `newDelay` will
* become the new {defaultAdminDelay}.
*
* The value returned guarantees that if the delay is reduced, it will go into effect
* after a wait that honors the previously set delay.
*
* See {defaultAdminDelayIncreaseWait}.
*/
function _delayChangeWait(uint48 newDelay) internal view virtual returns (uint48) {
uint48 currentDelay = defaultAdminDelay();
// When increasing the delay, we schedule the delay change to occur after a period of "new delay" has passed, up
// to a maximum given by defaultAdminDelayIncreaseWait, by default 5 days. For example, if increasing from 1 day
// to 3 days, the new delay will come into effect after 3 days. If increasing from 1 day to 10 days, the new
// delay will come into effect after 5 days. The 5 day wait period is intended to be able to fix an error like
// using milliseconds instead of seconds.
//
// When decreasing the delay, we wait the difference between "current delay" and "new delay". This guarantees
// that an admin transfer cannot be made faster than "current delay" at the time the delay change is scheduled.
// For example, if decreasing from 10 days to 3 days, the new delay will come into effect after 7 days.
return
newDelay > currentDelay
? uint48(Math.min(newDelay, defaultAdminDelayIncreaseWait())) // no need to safecast, both inputs are uint48
: currentDelay - newDelay;
}
///
/// Private setters
///
/**
* @dev Setter of the tuple for pending admin and its schedule.
*
* May emit a DefaultAdminTransferCanceled event.
*/
function _setPendingDefaultAdmin(address newAdmin, uint48 newSchedule) private {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
(, uint48 oldSchedule) = pendingDefaultAdmin();
$._pendingDefaultAdmin = newAdmin;
$._pendingDefaultAdminSchedule = newSchedule;
// An `oldSchedule` from `pendingDefaultAdmin()` is only set if it hasn't been accepted.
if (_isScheduleSet(oldSchedule)) {
// Emit for implicit cancellations when another default admin was scheduled.
emit DefaultAdminTransferCanceled();
}
}
/**
* @dev Setter of the tuple for pending delay and its schedule.
*
* May emit a DefaultAdminDelayChangeCanceled event.
*/
function _setPendingDelay(uint48 newDelay, uint48 newSchedule) private {
AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
uint48 oldSchedule = $._pendingDelaySchedule;
if (_isScheduleSet(oldSchedule)) {
if (_hasSchedulePassed(oldSchedule)) {
// Materialize a virtual delay
$._currentDelay = $._pendingDelay;
} else {
// Emit for implicit cancellations when another delay was scheduled.
emit DefaultAdminDelayChangeCanceled();
}
}
$._pendingDelay = newDelay;
$._pendingDelaySchedule = newSchedule;
}
///
/// Private helpers
///
/**
* @dev Defines if an `schedule` is considered set. For consistency purposes.
*/
function _isScheduleSet(uint48 schedule) private pure returns (bool) {
return schedule != 0;
}
/**
* @dev Defines if an `schedule` is considered passed. For consistency purposes.
*/
function _hasSchedulePassed(uint48 schedule) private view returns (bool) {
return schedule < block.timestamp;
}
}// 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
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (proxy/utils/UUPSUpgradeable.sol)
pragma solidity ^0.8.20;
import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";
/**
* @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
* {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
*
* A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
* reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
* `UUPSUpgradeable` with a custom implementation of upgrades.
*
* The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
*/
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
/// @custom:oz-upgrades-unsafe-allow state-variable-immutable
address private immutable __self = address(this);
/**
* @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
* and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
* while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
* If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must
* be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
* during an upgrade.
*/
string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";
/**
* @dev The call is from an unauthorized context.
*/
error UUPSUnauthorizedCallContext();
/**
* @dev The storage `slot` is unsupported as a UUID.
*/
error UUPSUnsupportedProxiableUUID(bytes32 slot);
/**
* @dev Check that the execution is being performed through a delegatecall call and that the execution context is
* a proxy contract with an implementation (as defined in ERC-1967) pointing to self. This should only be the case
* for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
* function through ERC-1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
* fail.
*/
modifier onlyProxy() {
_checkProxy();
_;
}
/**
* @dev Check that the execution is not being performed through a delegate call. This allows a function to be
* callable on the implementing contract but not through proxies.
*/
modifier notDelegated() {
_checkNotDelegated();
_;
}
function __UUPSUpgradeable_init() internal onlyInitializing {
}
function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
}
/**
* @dev Implementation of the ERC-1822 {proxiableUUID} function. This returns the storage slot used by the
* implementation. It is used to validate the implementation's compatibility when performing an upgrade.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
*/
function proxiableUUID() external view virtual notDelegated returns (bytes32) {
return ERC1967Utils.IMPLEMENTATION_SLOT;
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
* encoded in `data`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*
* @custom:oz-upgrades-unsafe-allow-reachable delegatecall
*/
function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, data);
}
/**
* @dev Reverts if the execution is not performed via delegatecall or the execution
* context is not of a proxy with an ERC-1967 compliant implementation pointing to self.
* See {_onlyProxy}.
*/
function _checkProxy() internal view virtual {
if (
address(this) == __self || // Must be called through delegatecall
ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
) {
revert UUPSUnauthorizedCallContext();
}
}
/**
* @dev Reverts if the execution is performed via delegatecall.
* See {notDelegated}.
*/
function _checkNotDelegated() internal view virtual {
if (address(this) != __self) {
// Must not be called through delegatecall
revert UUPSUnauthorizedCallContext();
}
}
/**
* @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
* {upgradeToAndCall}.
*
* Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
*
* ```solidity
* function _authorizeUpgrade(address) internal onlyOwner {}
* ```
*/
function _authorizeUpgrade(address newImplementation) internal virtual;
/**
* @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
*
* As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
* is expected to be the implementation slot in ERC-1967.
*
* Emits an {IERC1967-Upgraded} event.
*/
function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
revert UUPSUnsupportedProxiableUUID(slot);
}
ERC1967Utils.upgradeToAndCall(newImplementation, data);
} catch {
// The implementation is not UUPS
revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC1155/utils/ERC1155Holder.sol)
pragma solidity ^0.8.20;
import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {ERC165Upgradeable} from "../../../utils/introspection/ERC165Upgradeable.sol";
import {IERC1155Receiver} from "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";
import {Initializable} from "../../../proxy/utils/Initializable.sol";
/**
* @dev Simple implementation of `IERC1155Receiver` that will allow a contract to hold ERC-1155 tokens.
*
* IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be
* stuck.
*/
abstract contract ERC1155HolderUpgradeable is Initializable, ERC165Upgradeable, IERC1155Receiver {
function __ERC1155Holder_init() internal onlyInitializing {
}
function __ERC1155Holder_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165) returns (bool) {
return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
}
function onERC1155Received(
address,
address,
uint256,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155Received.selector;
}
function onERC1155BatchReceived(
address,
address,
uint256[] memory,
uint256[] memory,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155BatchReceived.selector;
}
}// 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;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (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 ERC-165 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;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)
pragma solidity ^0.8.20;
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
/// @custom:storage-location erc7201:openzeppelin.storage.Pausable
struct PausableStorage {
bool _paused;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Pausable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant PausableStorageLocation = 0xcd5ed15c6e187e77e9aee88184c21f4f2182ab5827cb3b7e07fbedcd63f03300;
function _getPausableStorage() private pure returns (PausableStorage storage $) {
assembly {
$.slot := PausableStorageLocation
}
}
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
/**
* @dev The operation failed because the contract is paused.
*/
error EnforcedPause();
/**
* @dev The operation failed because the contract is not paused.
*/
error ExpectedPause();
/**
* @dev Initializes the contract in unpaused state.
*/
function __Pausable_init() internal onlyInitializing {
__Pausable_init_unchained();
}
function __Pausable_init_unchained() internal onlyInitializing {
PausableStorage storage $ = _getPausableStorage();
$._paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
PausableStorage storage $ = _getPausableStorage();
return $._paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
if (paused()) {
revert EnforcedPause();
}
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
if (!paused()) {
revert ExpectedPause();
}
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
PausableStorage storage $ = _getPausableStorage();
$._paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
PausableStorage storage $ = _getPausableStorage();
$._paused = false;
emit Unpaused(_msgSender());
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/extensions/IAccessControlDefaultAdminRules.sol)
pragma solidity ^0.8.20;
import {IAccessControl} from "../IAccessControl.sol";
/**
* @dev External interface of AccessControlDefaultAdminRules declared to support ERC-165 detection.
*/
interface IAccessControlDefaultAdminRules is IAccessControl {
/**
* @dev The new default admin is not a valid default admin.
*/
error AccessControlInvalidDefaultAdmin(address defaultAdmin);
/**
* @dev At least one of the following rules was violated:
*
* - The `DEFAULT_ADMIN_ROLE` must only be managed by itself.
* - The `DEFAULT_ADMIN_ROLE` must only be held by one account at the time.
* - Any `DEFAULT_ADMIN_ROLE` transfer must be in two delayed steps.
*/
error AccessControlEnforcedDefaultAdminRules();
/**
* @dev The delay for transferring the default admin delay is enforced and
* the operation must wait until `schedule`.
*
* NOTE: `schedule` can be 0 indicating there's no transfer scheduled.
*/
error AccessControlEnforcedDefaultAdminDelay(uint48 schedule);
/**
* @dev Emitted when a {defaultAdmin} transfer is started, setting `newAdmin` as the next
* address to become the {defaultAdmin} by calling {acceptDefaultAdminTransfer} only after `acceptSchedule`
* passes.
*/
event DefaultAdminTransferScheduled(address indexed newAdmin, uint48 acceptSchedule);
/**
* @dev Emitted when a {pendingDefaultAdmin} is reset if it was never accepted, regardless of its schedule.
*/
event DefaultAdminTransferCanceled();
/**
* @dev Emitted when a {defaultAdminDelay} change is started, setting `newDelay` as the next
* delay to be applied between default admin transfer after `effectSchedule` has passed.
*/
event DefaultAdminDelayChangeScheduled(uint48 newDelay, uint48 effectSchedule);
/**
* @dev Emitted when a {pendingDefaultAdminDelay} is reset if its schedule didn't pass.
*/
event DefaultAdminDelayChangeCanceled();
/**
* @dev Returns the address of the current `DEFAULT_ADMIN_ROLE` holder.
*/
function defaultAdmin() external view returns (address);
/**
* @dev Returns a tuple of a `newAdmin` and an accept schedule.
*
* After the `schedule` passes, the `newAdmin` will be able to accept the {defaultAdmin} role
* by calling {acceptDefaultAdminTransfer}, completing the role transfer.
*
* A zero value only in `acceptSchedule` indicates no pending admin transfer.
*
* NOTE: A zero address `newAdmin` means that {defaultAdmin} is being renounced.
*/
function pendingDefaultAdmin() external view returns (address newAdmin, uint48 acceptSchedule);
/**
* @dev Returns the delay required to schedule the acceptance of a {defaultAdmin} transfer started.
*
* This delay will be added to the current timestamp when calling {beginDefaultAdminTransfer} to set
* the acceptance schedule.
*
* NOTE: If a delay change has been scheduled, it will take effect as soon as the schedule passes, making this
* function returns the new delay. See {changeDefaultAdminDelay}.
*/
function defaultAdminDelay() external view returns (uint48);
/**
* @dev Returns a tuple of `newDelay` and an effect schedule.
*
* After the `schedule` passes, the `newDelay` will get into effect immediately for every
* new {defaultAdmin} transfer started with {beginDefaultAdminTransfer}.
*
* A zero value only in `effectSchedule` indicates no pending delay change.
*
* NOTE: A zero value only for `newDelay` means that the next {defaultAdminDelay}
* will be zero after the effect schedule.
*/
function pendingDefaultAdminDelay() external view returns (uint48 newDelay, uint48 effectSchedule);
/**
* @dev Starts a {defaultAdmin} transfer by setting a {pendingDefaultAdmin} scheduled for acceptance
* after the current timestamp plus a {defaultAdminDelay}.
*
* Requirements:
*
* - Only can be called by the current {defaultAdmin}.
*
* Emits a DefaultAdminRoleChangeStarted event.
*/
function beginDefaultAdminTransfer(address newAdmin) external;
/**
* @dev Cancels a {defaultAdmin} transfer previously started with {beginDefaultAdminTransfer}.
*
* A {pendingDefaultAdmin} not yet accepted can also be cancelled with this function.
*
* Requirements:
*
* - Only can be called by the current {defaultAdmin}.
*
* May emit a DefaultAdminTransferCanceled event.
*/
function cancelDefaultAdminTransfer() external;
/**
* @dev Completes a {defaultAdmin} transfer previously started with {beginDefaultAdminTransfer}.
*
* After calling the function:
*
* - `DEFAULT_ADMIN_ROLE` should be granted to the caller.
* - `DEFAULT_ADMIN_ROLE` should be revoked from the previous holder.
* - {pendingDefaultAdmin} should be reset to zero values.
*
* Requirements:
*
* - Only can be called by the {pendingDefaultAdmin}'s `newAdmin`.
* - The {pendingDefaultAdmin}'s `acceptSchedule` should've passed.
*/
function acceptDefaultAdminTransfer() external;
/**
* @dev Initiates a {defaultAdminDelay} update by setting a {pendingDefaultAdminDelay} scheduled for getting
* into effect after the current timestamp plus a {defaultAdminDelay}.
*
* This function guarantees that any call to {beginDefaultAdminTransfer} done between the timestamp this
* method is called and the {pendingDefaultAdminDelay} effect schedule will use the current {defaultAdminDelay}
* set before calling.
*
* The {pendingDefaultAdminDelay}'s effect schedule is defined in a way that waiting until the schedule and then
* calling {beginDefaultAdminTransfer} with the new delay will take at least the same as another {defaultAdmin}
* complete transfer (including acceptance).
*
* The schedule is designed for two scenarios:
*
* - When the delay is changed for a larger one the schedule is `block.timestamp + newDelay` capped by
* {defaultAdminDelayIncreaseWait}.
* - When the delay is changed for a shorter one, the schedule is `block.timestamp + (current delay - new delay)`.
*
* A {pendingDefaultAdminDelay} that never got into effect will be canceled in favor of a new scheduled change.
*
* Requirements:
*
* - Only can be called by the current {defaultAdmin}.
*
* Emits a DefaultAdminDelayChangeScheduled event and may emit a DefaultAdminDelayChangeCanceled event.
*/
function changeDefaultAdminDelay(uint48 newDelay) external;
/**
* @dev Cancels a scheduled {defaultAdminDelay} change.
*
* Requirements:
*
* - Only can be called by the current {defaultAdmin}.
*
* May emit a DefaultAdminDelayChangeCanceled event.
*/
function rollbackDefaultAdminDelay() external;
/**
* @dev Maximum time in seconds for an increase to {defaultAdminDelay} (that is scheduled using {changeDefaultAdminDelay})
* to take effect. Default to 5 days.
*
* When the {defaultAdminDelay} is scheduled to be increased, it goes into effect after the new delay has passed with
* the purpose of giving enough time for reverting any accidental change (i.e. using milliseconds instead of seconds)
* that may lock the contract. However, to avoid excessive schedules, the wait is capped by this function and it can
* be overrode for a custom {defaultAdminDelay} increase scheduling.
*
* IMPORTANT: Make sure to add a reasonable amount of time while overriding this value, otherwise,
* there's a risk of setting a high new delay that goes into effect almost immediately without the
* possibility of human intervention in the case of an input error (eg. set milliseconds instead of seconds).
*/
function defaultAdminDelayIncreaseWait() external view returns (uint48);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol)
pragma solidity ^0.8.20;
/**
* @dev External interface of AccessControl declared to support ERC-165 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. This account bears the admin role (for the granted role).
* Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
*/
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;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.20;
/**
* @dev ERC-1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822Proxiable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363.sol)
pragma solidity ^0.8.20;
import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";
/**
* @title IERC1363
* @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
*
* Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
* after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
*/
interface IERC1363 is IERC20, IERC165 {
/*
* Note: the ERC-165 identifier for this interface is 0xb0202a11.
* 0xb0202a11 ===
* bytes4(keccak256('transferAndCall(address,uint256)')) ^
* bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
* bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
* bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
* bytes4(keccak256('approveAndCall(address,uint256)')) ^
* bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
*/
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`
* and then calls {IERC1363Receiver-onTransferReceived} on `to`.
* @param to The address which you want to transfer to.
* @param value The amount of tokens to be transferred.
* @return A boolean value indicating whether the operation succeeded unless throwing.
*/
function transferAndCall(address to, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`
* and then calls {IERC1363Receiver-onTransferReceived} on `to`.
* @param to The address which you want to transfer to.
* @param value The amount of tokens to be transferred.
* @param data Additional data with no specified format, sent in call to `to`.
* @return A boolean value indicating whether the operation succeeded unless throwing.
*/
function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
* and then calls {IERC1363Receiver-onTransferReceived} on `to`.
* @param from The address which you want to send tokens from.
* @param to The address which you want to transfer to.
* @param value The amount of tokens to be transferred.
* @return A boolean value indicating whether the operation succeeded unless throwing.
*/
function transferFromAndCall(address from, address to, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
* and then calls {IERC1363Receiver-onTransferReceived} on `to`.
* @param from The address which you want to send tokens from.
* @param to The address which you want to transfer to.
* @param value The amount of tokens to be transferred.
* @param data Additional data with no specified format, sent in call to `to`.
* @return A boolean value indicating whether the operation succeeded unless throwing.
*/
function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
* @param spender The address which will spend the funds.
* @param value The amount of tokens to be spent.
* @return A boolean value indicating whether the operation succeeded unless throwing.
*/
function approveAndCall(address spender, uint256 value) external returns (bool);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
* @param spender The address which will spend the funds.
* @param value The amount of tokens to be spent.
* @param data Additional data with no specified format, sent in call to `spender`.
* @return A boolean value indicating whether the operation succeeded unless throwing.
*/
function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)
pragma solidity ^0.8.20;
import {IERC165} from "../utils/introspection/IERC165.sol";// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol)
pragma solidity ^0.8.20;
/**
* @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
*/
interface IERC1967 {
/**
* @dev Emitted when the implementation is upgraded.
*/
event Upgraded(address indexed implementation);
/**
* @dev Emitted when the admin account has changed.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Emitted when the beacon is changed.
*/
event BeaconUpgraded(address indexed beacon);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../token/ERC20/IERC20.sol";// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5313.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface for the Light Contract Ownership Standard.
*
* A standardized minimal interface required to identify an account that controls a contract
*/
interface IERC5313 {
/**
* @dev Gets the address of the owner.
*/
function owner() external view returns (address);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)
pragma solidity ^0.8.20;
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {UpgradeableBeacon} will check that this address is a contract.
*/
function implementation() external view returns (address);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (proxy/ERC1967/ERC1967Utils.sol)
pragma solidity ^0.8.21;
import {IBeacon} from "../beacon/IBeacon.sol";
import {IERC1967} from "../../interfaces/IERC1967.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";
/**
* @dev This library provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[ERC-1967] slots.
*/
library ERC1967Utils {
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
*/
// solhint-disable-next-line private-vars-leading-underscore
bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev The `implementation` of the proxy is invalid.
*/
error ERC1967InvalidImplementation(address implementation);
/**
* @dev The `admin` of the proxy is invalid.
*/
error ERC1967InvalidAdmin(address admin);
/**
* @dev The `beacon` of the proxy is invalid.
*/
error ERC1967InvalidBeacon(address beacon);
/**
* @dev An upgrade function sees `msg.value > 0` that may be lost.
*/
error ERC1967NonPayable();
/**
* @dev Returns the current implementation address.
*/
function getImplementation() internal view returns (address) {
return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the ERC-1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
if (newImplementation.code.length == 0) {
revert ERC1967InvalidImplementation(newImplementation);
}
StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Performs implementation upgrade with additional setup call if data is nonempty.
* This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
* to avoid stuck value in the contract.
*
* Emits an {IERC1967-Upgraded} event.
*/
function upgradeToAndCall(address newImplementation, bytes memory data) internal {
_setImplementation(newImplementation);
emit IERC1967.Upgraded(newImplementation);
if (data.length > 0) {
Address.functionDelegateCall(newImplementation, data);
} else {
_checkNonPayable();
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
*/
// solhint-disable-next-line private-vars-leading-underscore
bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Returns the current admin.
*
* TIP: To get this value clients can read directly from the storage slot shown below (specified by ERC-1967) using
* the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
* `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
*/
function getAdmin() internal view returns (address) {
return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
}
/**
* @dev Stores a new address in the ERC-1967 admin slot.
*/
function _setAdmin(address newAdmin) private {
if (newAdmin == address(0)) {
revert ERC1967InvalidAdmin(address(0));
}
StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {IERC1967-AdminChanged} event.
*/
function changeAdmin(address newAdmin) internal {
emit IERC1967.AdminChanged(getAdmin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
* This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
*/
// solhint-disable-next-line private-vars-leading-underscore
bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
/**
* @dev Returns the current beacon.
*/
function getBeacon() internal view returns (address) {
return StorageSlot.getAddressSlot(BEACON_SLOT).value;
}
/**
* @dev Stores a new beacon in the ERC-1967 beacon slot.
*/
function _setBeacon(address newBeacon) private {
if (newBeacon.code.length == 0) {
revert ERC1967InvalidBeacon(newBeacon);
}
StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;
address beaconImplementation = IBeacon(newBeacon).implementation();
if (beaconImplementation.code.length == 0) {
revert ERC1967InvalidImplementation(beaconImplementation);
}
}
/**
* @dev Change the beacon and trigger a setup call if data is nonempty.
* This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
* to avoid stuck value in the contract.
*
* Emits an {IERC1967-BeaconUpgraded} event.
*
* CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
* it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
* efficiency.
*/
function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
_setBeacon(newBeacon);
emit IERC1967.BeaconUpgraded(newBeacon);
if (data.length > 0) {
Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
} else {
_checkNonPayable();
}
}
/**
* @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
* if an upgrade doesn't perform an initialization call.
*/
function _checkNonPayable() private {
if (msg.value > 0) {
revert ERC1967NonPayable();
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC1155/extensions/IERC1155MetadataURI.sol)
pragma solidity ^0.8.20;
import {IERC1155} from "../IERC1155.sol";
/**
* @dev Interface of the optional ERC1155MetadataExtension interface, as defined
* in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[ERC].
*/
interface IERC1155MetadataURI is IERC1155 {
/**
* @dev Returns the URI for token type `id`.
*
* If the `\{id\}` substring is present in the URI, it must be replaced by
* clients with the actual token type ID.
*/
function uri(uint256 id) external view returns (string memory);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.20;
import {IERC165} from "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC-1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[ERC].
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` amount of tokens of type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the value of tokens of token type `id` owned by `account`.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(
address[] calldata accounts,
uint256[] calldata ids
) external view returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the zero address.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers a `value` amount of tokens of type `id` from `from` to `to`.
*
* WARNING: This function can potentially allow a reentrancy attack when transferring tokens
* to an untrusted contract, when invoking {onERC1155Received} on the receiver.
* Ensure to follow the checks-effects-interactions pattern and consider employing
* reentrancy guards when interacting with untrusted contracts.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `value` amount.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(address from, address to, uint256 id, uint256 value, bytes calldata data) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* WARNING: This function can potentially allow a reentrancy attack when transferring tokens
* to an untrusted contract, when invoking {onERC1155BatchReceived} on the receiver.
* Ensure to follow the checks-effects-interactions pattern and consider employing
* reentrancy guards when interacting with untrusted contracts.
*
* Emits either a {TransferSingle} or a {TransferBatch} event, depending on the length of the array arguments.
*
* Requirements:
*
* - `ids` and `values` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC1155/IERC1155Receiver.sol)
pragma solidity ^0.8.20;
import {IERC165} from "../../utils/introspection/IERC165.sol";
/**
* @dev Interface that must be implemented by smart contracts in order to receive
* ERC-1155 token transfers.
*/
interface IERC1155Receiver is IERC165 {
/**
* @dev Handles the receipt of a single ERC-1155 token type. This function is
* called at the end of a `safeTransferFrom` after the balance has been updated.
*
* NOTE: To accept the transfer, this must return
* `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
* (i.e. 0xf23a6e61, or its own function selector).
*
* @param operator The address which initiated the transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param id The ID of the token being transferred
* @param value The amount of tokens being transferred
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
* @dev Handles the receipt of a multiple ERC-1155 token types. This function
* is called at the end of a `safeBatchTransferFrom` after the balances have
* been updated.
*
* NOTE: To accept the transfer(s), this must return
* `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
* (i.e. 0xbc197c81, or its own function selector).
*
* @param operator The address which initiated the batch transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param ids An array containing ids of each token being transferred (order and length must match values array)
* @param values An array containing amounts of each token being transferred (order and length must match ids array)
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC-20 standard as defined in the ERC.
*/
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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";
import {Address} from "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC-20 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 {
/**
* @dev An operation with an ERC-20 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.
*
* IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
* smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
* this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
* that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
*/
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.
*
* IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
* smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
* this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
* that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
*/
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.
*
* NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
* only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
* set here.
*/
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 Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
* code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
* targeting contracts.
*
* Reverts if the returned value is other than `true`.
*/
function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
if (to.code.length == 0) {
safeTransfer(token, to, value);
} else if (!token.transferAndCall(to, value, data)) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
* has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
* targeting contracts.
*
* Reverts if the returned value is other than `true`.
*/
function transferFromAndCallRelaxed(
IERC1363 token,
address from,
address to,
uint256 value,
bytes memory data
) internal {
if (to.code.length == 0) {
safeTransferFrom(token, from, to, value);
} else if (!token.transferFromAndCall(from, to, value, data)) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
* code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
* targeting contracts.
*
* NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
* Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
* once without retrying, and relies on the returned value to be true.
*
* Reverts if the returned value is other than `true`.
*/
function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
if (to.code.length == 0) {
forceApprove(token, to, value);
} else if (!token.approveAndCall(to, value, data)) {
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 {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
uint256 returnSize;
uint256 returnValue;
assembly ("memory-safe") {
let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
// bubble errors
if iszero(success) {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
returnSize := returndatasize()
returnValue := mload(0)
}
if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
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 silently catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
bool success;
uint256 returnSize;
uint256 returnValue;
assembly ("memory-safe") {
success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
returnSize := returndatasize()
returnValue := mload(0)
}
return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Address.sol)
pragma solidity ^0.8.20;
import {Errors} from "./Errors.sol";
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev There's no code at `target` (it is not a contract).
*/
error AddressEmptyCode(address target);
/**
* @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 Errors.InsufficientBalance(address(this).balance, amount);
}
(bool success, ) = recipient.call{value: amount}("");
if (!success) {
revert Errors.FailedCall();
}
}
/**
* @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
* {Errors.FailedCall} 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 Errors.InsufficientBalance(address(this).balance, value);
}
(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 {Errors.FailedCall}) 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 {Errors.FailedCall} 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 {Errors.FailedCall}.
*/
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
assembly ("memory-safe") {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert Errors.FailedCall();
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/Hashes.sol)
pragma solidity ^0.8.20;
/**
* @dev Library of standard hash functions.
*
* _Available since v5.1._
*/
library Hashes {
/**
* @dev Commutative Keccak256 hash of a sorted pair of bytes32. Frequently used when working with merkle proofs.
*
* NOTE: Equivalent to the `standardNodeHash` in our https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
*/
function commutativeKeccak256(bytes32 a, bytes32 b) internal pure returns (bytes32) {
return a < b ? _efficientKeccak256(a, b) : _efficientKeccak256(b, a);
}
/**
* @dev Implementation of keccak256(abi.encode(a, b)) that doesn't allocate or expand memory.
*/
function _efficientKeccak256(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
assembly ("memory-safe") {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/MerkleProof.sol)
// This file was procedurally generated from scripts/generate/templates/MerkleProof.js.
pragma solidity ^0.8.20;
import {Hashes} from "./Hashes.sol";
/**
* @dev These functions deal with verification of Merkle Tree proofs.
*
* The tree and the proofs can be generated using our
* https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
* You will find a quickstart guide in the readme.
*
* WARNING: You should avoid using leaf values that are 64 bytes long prior to
* hashing, or use a hash function other than keccak256 for hashing leaves.
* This is because the concatenation of a sorted pair of internal nodes in
* the Merkle tree could be reinterpreted as a leaf value.
* OpenZeppelin's JavaScript library generates Merkle trees that are safe
* against this attack out of the box.
*
* IMPORTANT: Consider memory side-effects when using custom hashing functions
* that access memory in an unsafe way.
*
* NOTE: This library supports proof verification for merkle trees built using
* custom _commutative_ hashing functions (i.e. `H(a, b) == H(b, a)`). Proving
* leaf inclusion in trees built using non-commutative hashing functions requires
* additional logic that is not supported by this library.
*/
library MerkleProof {
/**
*@dev The multiproof provided is not valid.
*/
error MerkleProofInvalidMultiproof();
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*
* This version handles proofs in memory with the default hashing function.
*/
function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProof(proof, leaf) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. When processing the proof, the pairs
* of leaves & pre-images are assumed to be sorted.
*
* This version handles proofs in memory with the default hashing function.
*/
function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = Hashes.commutativeKeccak256(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*
* This version handles proofs in memory with a custom hashing function.
*/
function verify(
bytes32[] memory proof,
bytes32 root,
bytes32 leaf,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bool) {
return processProof(proof, leaf, hasher) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. When processing the proof, the pairs
* of leaves & pre-images are assumed to be sorted.
*
* This version handles proofs in memory with a custom hashing function.
*/
function processProof(
bytes32[] memory proof,
bytes32 leaf,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = hasher(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*
* This version handles proofs in calldata with the default hashing function.
*/
function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProofCalldata(proof, leaf) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. When processing the proof, the pairs
* of leaves & pre-images are assumed to be sorted.
*
* This version handles proofs in calldata with the default hashing function.
*/
function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = Hashes.commutativeKeccak256(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*
* This version handles proofs in calldata with a custom hashing function.
*/
function verifyCalldata(
bytes32[] calldata proof,
bytes32 root,
bytes32 leaf,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bool) {
return processProofCalldata(proof, leaf, hasher) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. When processing the proof, the pairs
* of leaves & pre-images are assumed to be sorted.
*
* This version handles proofs in calldata with a custom hashing function.
*/
function processProofCalldata(
bytes32[] calldata proof,
bytes32 leaf,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = hasher(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* This version handles multiproofs in memory with the default hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
*
* NOTE: Consider the case where `root == proof[0] && leaves.length == 0` as it will return `true`.
* The `leaves` must be validated independently. See {processMultiProof}.
*/
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProof(proof, proofFlags, leaves) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
* proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
* leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
* respectively.
*
* This version handles multiproofs in memory with the default hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
* is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
* tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
*
* NOTE: The _empty set_ (i.e. the case where `proof.length == 1 && leaves.length == 0`) is considered a no-op,
* and therefore a valid multiproof (i.e. it returns `proof[0]`). Consider disallowing this case if you're not
* validating the leaves elsewhere.
*/
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the Merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofFlagsLen = proofFlags.length;
// Check proof validity.
if (leavesLen + proof.length != proofFlagsLen + 1) {
revert MerkleProofInvalidMultiproof();
}
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](proofFlagsLen);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < proofFlagsLen; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = Hashes.commutativeKeccak256(a, b);
}
if (proofFlagsLen > 0) {
if (proofPos != proof.length) {
revert MerkleProofInvalidMultiproof();
}
unchecked {
return hashes[proofFlagsLen - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* This version handles multiproofs in memory with a custom hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
*
* NOTE: Consider the case where `root == proof[0] && leaves.length == 0` as it will return `true`.
* The `leaves` must be validated independently. See {processMultiProof}.
*/
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bool) {
return processMultiProof(proof, proofFlags, leaves, hasher) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
* proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
* leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
* respectively.
*
* This version handles multiproofs in memory with a custom hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
* is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
* tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
*
* NOTE: The _empty set_ (i.e. the case where `proof.length == 1 && leaves.length == 0`) is considered a no-op,
* and therefore a valid multiproof (i.e. it returns `proof[0]`). Consider disallowing this case if you're not
* validating the leaves elsewhere.
*/
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the Merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofFlagsLen = proofFlags.length;
// Check proof validity.
if (leavesLen + proof.length != proofFlagsLen + 1) {
revert MerkleProofInvalidMultiproof();
}
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](proofFlagsLen);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < proofFlagsLen; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = hasher(a, b);
}
if (proofFlagsLen > 0) {
if (proofPos != proof.length) {
revert MerkleProofInvalidMultiproof();
}
unchecked {
return hashes[proofFlagsLen - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* This version handles multiproofs in calldata with the default hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
*
* NOTE: Consider the case where `root == proof[0] && leaves.length == 0` as it will return `true`.
* The `leaves` must be validated independently. See {processMultiProofCalldata}.
*/
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
* proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
* leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
* respectively.
*
* This version handles multiproofs in calldata with the default hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
* is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
* tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
*
* NOTE: The _empty set_ (i.e. the case where `proof.length == 1 && leaves.length == 0`) is considered a no-op,
* and therefore a valid multiproof (i.e. it returns `proof[0]`). Consider disallowing this case if you're not
* validating the leaves elsewhere.
*/
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the Merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofFlagsLen = proofFlags.length;
// Check proof validity.
if (leavesLen + proof.length != proofFlagsLen + 1) {
revert MerkleProofInvalidMultiproof();
}
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](proofFlagsLen);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < proofFlagsLen; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = Hashes.commutativeKeccak256(a, b);
}
if (proofFlagsLen > 0) {
if (proofPos != proof.length) {
revert MerkleProofInvalidMultiproof();
}
unchecked {
return hashes[proofFlagsLen - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* This version handles multiproofs in calldata with a custom hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
*
* NOTE: Consider the case where `root == proof[0] && leaves.length == 0` as it will return `true`.
* The `leaves` must be validated independently. See {processMultiProofCalldata}.
*/
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves, hasher) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
* proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
* leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
* respectively.
*
* This version handles multiproofs in calldata with a custom hashing function.
*
* CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
* is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
* tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
*
* NOTE: The _empty set_ (i.e. the case where `proof.length == 1 && leaves.length == 0`) is considered a no-op,
* and therefore a valid multiproof (i.e. it returns `proof[0]`). Consider disallowing this case if you're not
* validating the leaves elsewhere.
*/
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves,
function(bytes32, bytes32) view returns (bytes32) hasher
) internal view returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the Merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofFlagsLen = proofFlags.length;
// Check proof validity.
if (leavesLen + proof.length != proofFlagsLen + 1) {
revert MerkleProofInvalidMultiproof();
}
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](proofFlagsLen);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < proofFlagsLen; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = hasher(a, b);
}
if (proofFlagsLen > 0) {
if (proofPos != proof.length) {
revert MerkleProofInvalidMultiproof();
}
unchecked {
return hashes[proofFlagsLen - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Errors.sol)
pragma solidity ^0.8.20;
/**
* @dev Collection of common custom errors used in multiple contracts
*
* IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
* It is recommended to avoid relying on the error API for critical functionality.
*
* _Available since v5.1._
*/
library Errors {
/**
* @dev The ETH balance of the account is not enough to perform the operation.
*/
error InsufficientBalance(uint256 balance, uint256 needed);
/**
* @dev A call to an address target failed. The target may have reverted.
*/
error FailedCall();
/**
* @dev The deployment failed.
*/
error FailedDeployment();
/**
* @dev A necessary precompile is missing.
*/
error MissingPrecompile(address);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC-165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[ERC].
*
* 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[ERC 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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
import {Panic} from "../Panic.sol";
import {SafeCast} from "./SafeCast.sol";
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
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 success flag (no overflow).
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an success flag (no overflow).
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an success flag (no overflow).
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
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 success flag (no division by zero).
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero).
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
*
* IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
* However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
* one branch when needed, making this function more expensive.
*/
function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) {
unchecked {
// branchless ternary works because:
// b ^ (a ^ b) == a
// b ^ 0 == b
return b ^ ((a ^ b) * SafeCast.toUint(condition));
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return ternary(a > b, a, b);
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return ternary(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.
Panic.panic(Panic.DIVISION_BY_ZERO);
}
// The following calculation ensures accurate ceiling division without overflow.
// Since a is non-zero, (a - 1) / b will not overflow.
// The largest possible result occurs when (a - 1) / b is type(uint256).max,
// but the largest value we can obtain is type(uint256).max - 1, which happens
// when a = type(uint256).max and b = 1.
unchecked {
return SafeCast.toUint(a > 0) * ((a - 1) / b + 1);
}
}
/**
* @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
*
* 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 2²⁵⁶ and mod 2²⁵⁶ - 1, then use
// the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2²⁵⁶ + 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 2²⁵⁶. Also prevents denominator == 0.
if (denominator <= prod1) {
Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW));
}
///////////////////////////////////////////////
// 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 2²⁵⁶ / 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 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such
// that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv ≡ 1 mod 2⁴.
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 2⁸
inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶
inverse *= 2 - denominator * inverse; // inverse mod 2³²
inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴
inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸
inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶
// 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 2²⁵⁶. Since the preconditions guarantee that the outcome is
// less than 2²⁵⁶, 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;
}
}
/**
* @dev 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) {
return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0);
}
/**
* @dev Calculate the modular multiplicative inverse of a number in Z/nZ.
*
* If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0.
* If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible.
*
* If the input value is not inversible, 0 is returned.
*
* NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the
* inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}.
*/
function invMod(uint256 a, uint256 n) internal pure returns (uint256) {
unchecked {
if (n == 0) return 0;
// The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version)
// Used to compute integers x and y such that: ax + ny = gcd(a, n).
// When the gcd is 1, then the inverse of a modulo n exists and it's x.
// ax + ny = 1
// ax = 1 + (-y)n
// ax ≡ 1 (mod n) # x is the inverse of a modulo n
// If the remainder is 0 the gcd is n right away.
uint256 remainder = a % n;
uint256 gcd = n;
// Therefore the initial coefficients are:
// ax + ny = gcd(a, n) = n
// 0a + 1n = n
int256 x = 0;
int256 y = 1;
while (remainder != 0) {
uint256 quotient = gcd / remainder;
(gcd, remainder) = (
// The old remainder is the next gcd to try.
remainder,
// Compute the next remainder.
// Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd
// where gcd is at most n (capped to type(uint256).max)
gcd - remainder * quotient
);
(x, y) = (
// Increment the coefficient of a.
y,
// Decrement the coefficient of n.
// Can overflow, but the result is casted to uint256 so that the
// next value of y is "wrapped around" to a value between 0 and n - 1.
x - y * int256(quotient)
);
}
if (gcd != 1) return 0; // No inverse exists.
return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative.
}
}
/**
* @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`.
*
* From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is
* prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that
* `a**(p-2)` is the modular multiplicative inverse of a in Fp.
*
* NOTE: this function does NOT check that `p` is a prime greater than `2`.
*/
function invModPrime(uint256 a, uint256 p) internal view returns (uint256) {
unchecked {
return Math.modExp(a, p - 2, p);
}
}
/**
* @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m)
*
* Requirements:
* - modulus can't be zero
* - underlying staticcall to precompile must succeed
*
* IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make
* sure the chain you're using it on supports the precompiled contract for modular exponentiation
* at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise,
* the underlying function will succeed given the lack of a revert, but the result may be incorrectly
* interpreted as 0.
*/
function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) {
(bool success, uint256 result) = tryModExp(b, e, m);
if (!success) {
Panic.panic(Panic.DIVISION_BY_ZERO);
}
return result;
}
/**
* @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m).
* It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying
* to operate modulo 0 or if the underlying precompile reverted.
*
* IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain
* you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in
* https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack
* of a revert, but the result may be incorrectly interpreted as 0.
*/
function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) {
if (m == 0) return (false, 0);
assembly ("memory-safe") {
let ptr := mload(0x40)
// | Offset | Content | Content (Hex) |
// |-----------|------------|--------------------------------------------------------------------|
// | 0x00:0x1f | size of b | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x20:0x3f | size of e | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x40:0x5f | size of m | 0x0000000000000000000000000000000000000000000000000000000000000020 |
// | 0x60:0x7f | value of b | 0x<.............................................................b> |
// | 0x80:0x9f | value of e | 0x<.............................................................e> |
// | 0xa0:0xbf | value of m | 0x<.............................................................m> |
mstore(ptr, 0x20)
mstore(add(ptr, 0x20), 0x20)
mstore(add(ptr, 0x40), 0x20)
mstore(add(ptr, 0x60), b)
mstore(add(ptr, 0x80), e)
mstore(add(ptr, 0xa0), m)
// Given the result < m, it's guaranteed to fit in 32 bytes,
// so we can use the memory scratch space located at offset 0.
success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20)
result := mload(0x00)
}
}
/**
* @dev Variant of {modExp} that supports inputs of arbitrary length.
*/
function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) {
(bool success, bytes memory result) = tryModExp(b, e, m);
if (!success) {
Panic.panic(Panic.DIVISION_BY_ZERO);
}
return result;
}
/**
* @dev Variant of {tryModExp} that supports inputs of arbitrary length.
*/
function tryModExp(
bytes memory b,
bytes memory e,
bytes memory m
) internal view returns (bool success, bytes memory result) {
if (_zeroBytes(m)) return (false, new bytes(0));
uint256 mLen = m.length;
// Encode call args in result and move the free memory pointer
result = abi.encodePacked(b.length, e.length, mLen, b, e, m);
assembly ("memory-safe") {
let dataPtr := add(result, 0x20)
// Write result on top of args to avoid allocating extra memory.
success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen)
// Overwrite the length.
// result.length > returndatasize() is guaranteed because returndatasize() == m.length
mstore(result, mLen)
// Set the memory pointer after the returned data.
mstore(0x40, add(dataPtr, mLen))
}
}
/**
* @dev Returns whether the provided byte array is zero.
*/
function _zeroBytes(bytes memory byteArray) private pure returns (bool) {
for (uint256 i = 0; i < byteArray.length; ++i) {
if (byteArray[i] != 0) {
return false;
}
}
return true;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* This method is based on Newton's method for computing square roots; the algorithm is restricted to only
* using integer operations.
*/
function sqrt(uint256 a) internal pure returns (uint256) {
unchecked {
// Take care of easy edge cases when a == 0 or a == 1
if (a <= 1) {
return a;
}
// In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a
// sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between
// the current value as `ε_n = | x_n - sqrt(a) |`.
//
// For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root
// of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is
// bigger than any uint256.
//
// By noticing that
// `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)`
// we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar
// to the msb function.
uint256 aa = a;
uint256 xn = 1;
if (aa >= (1 << 128)) {
aa >>= 128;
xn <<= 64;
}
if (aa >= (1 << 64)) {
aa >>= 64;
xn <<= 32;
}
if (aa >= (1 << 32)) {
aa >>= 32;
xn <<= 16;
}
if (aa >= (1 << 16)) {
aa >>= 16;
xn <<= 8;
}
if (aa >= (1 << 8)) {
aa >>= 8;
xn <<= 4;
}
if (aa >= (1 << 4)) {
aa >>= 4;
xn <<= 2;
}
if (aa >= (1 << 2)) {
xn <<= 1;
}
// We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1).
//
// We can refine our estimation by noticing that the middle of that interval minimizes the error.
// If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2).
// This is going to be our x_0 (and ε_0)
xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2)
// From here, Newton's method give us:
// x_{n+1} = (x_n + a / x_n) / 2
//
// One should note that:
// x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a
// = ((x_n² + a) / (2 * x_n))² - a
// = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a
// = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²)
// = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²)
// = (x_n² - a)² / (2 * x_n)²
// = ((x_n² - a) / (2 * x_n))²
// ≥ 0
// Which proves that for all n ≥ 1, sqrt(a) ≤ x_n
//
// This gives us the proof of quadratic convergence of the sequence:
// ε_{n+1} = | x_{n+1} - sqrt(a) |
// = | (x_n + a / x_n) / 2 - sqrt(a) |
// = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) |
// = | (x_n - sqrt(a))² / (2 * x_n) |
// = | ε_n² / (2 * x_n) |
// = ε_n² / | (2 * x_n) |
//
// For the first iteration, we have a special case where x_0 is known:
// ε_1 = ε_0² / | (2 * x_0) |
// ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2)))
// ≤ 2**(2*e-4) / (3 * 2**(e-1))
// ≤ 2**(e-3) / 3
// ≤ 2**(e-3-log2(3))
// ≤ 2**(e-4.5)
//
// For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n:
// ε_{n+1} = ε_n² / | (2 * x_n) |
// ≤ (2**(e-k))² / (2 * 2**(e-1))
// ≤ 2**(2*e-2*k) / 2**e
// ≤ 2**(e-2*k)
xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5) -- special case, see above
xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9) -- general case with k = 4.5
xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18) -- general case with k = 9
xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36) -- general case with k = 18
xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72) -- general case with k = 36
xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144) -- general case with k = 72
// Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision
// ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either
// sqrt(a) or sqrt(a) + 1.
return xn - SafeCast.toUint(xn > a / xn);
}
}
/**
* @dev 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 + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a);
}
}
/**
* @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;
uint256 exp;
unchecked {
exp = 128 * SafeCast.toUint(value > (1 << 128) - 1);
value >>= exp;
result += exp;
exp = 64 * SafeCast.toUint(value > (1 << 64) - 1);
value >>= exp;
result += exp;
exp = 32 * SafeCast.toUint(value > (1 << 32) - 1);
value >>= exp;
result += exp;
exp = 16 * SafeCast.toUint(value > (1 << 16) - 1);
value >>= exp;
result += exp;
exp = 8 * SafeCast.toUint(value > (1 << 8) - 1);
value >>= exp;
result += exp;
exp = 4 * SafeCast.toUint(value > (1 << 4) - 1);
value >>= exp;
result += exp;
exp = 2 * SafeCast.toUint(value > (1 << 2) - 1);
value >>= exp;
result += exp;
result += SafeCast.toUint(value > 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 + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value);
}
}
/**
* @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 + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value);
}
}
/**
* @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;
uint256 isGt;
unchecked {
isGt = SafeCast.toUint(value > (1 << 128) - 1);
value >>= isGt * 128;
result += isGt * 16;
isGt = SafeCast.toUint(value > (1 << 64) - 1);
value >>= isGt * 64;
result += isGt * 8;
isGt = SafeCast.toUint(value > (1 << 32) - 1);
value >>= isGt * 32;
result += isGt * 4;
isGt = SafeCast.toUint(value > (1 << 16) - 1);
value >>= isGt * 16;
result += isGt * 2;
result += SafeCast.toUint(value > (1 << 8) - 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 + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (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/bool 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);
}
/**
* @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump.
*/
function toUint(bool b) internal pure returns (uint256 u) {
assembly ("memory-safe") {
u := iszero(iszero(b))
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol)
pragma solidity ^0.8.20;
/**
* @dev Helper library for emitting standardized panic codes.
*
* ```solidity
* contract Example {
* using Panic for uint256;
*
* // Use any of the declared internal constants
* function foo() { Panic.GENERIC.panic(); }
*
* // Alternatively
* function foo() { Panic.panic(Panic.GENERIC); }
* }
* ```
*
* Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil].
*
* _Available since v5.1._
*/
// slither-disable-next-line unused-state
library Panic {
/// @dev generic / unspecified error
uint256 internal constant GENERIC = 0x00;
/// @dev used by the assert() builtin
uint256 internal constant ASSERT = 0x01;
/// @dev arithmetic underflow or overflow
uint256 internal constant UNDER_OVERFLOW = 0x11;
/// @dev division or modulo by zero
uint256 internal constant DIVISION_BY_ZERO = 0x12;
/// @dev enum conversion error
uint256 internal constant ENUM_CONVERSION_ERROR = 0x21;
/// @dev invalid encoding in storage
uint256 internal constant STORAGE_ENCODING_ERROR = 0x22;
/// @dev empty array pop
uint256 internal constant EMPTY_ARRAY_POP = 0x31;
/// @dev array out of bounds access
uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32;
/// @dev resource error (too large allocation or too large array)
uint256 internal constant RESOURCE_ERROR = 0x41;
/// @dev calling invalid internal function
uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51;
/// @dev Reverts with a panic code. Recommended to use with
/// the internal constants with predefined codes.
function panic(uint256 code) internal pure {
assembly ("memory-safe") {
mstore(0x00, 0x4e487b71)
mstore(0x20, code)
revert(0x1c, 0x24)
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
pragma solidity ^0.8.20;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC-1967 implementation slot:
* ```solidity
* contract ERC1967 {
* // Define the slot. Alternatively, use the SlotDerivation library to derive the slot.
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(newImplementation.code.length > 0);
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* TIP: Consider using this library along with {SlotDerivation}.
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct Int256Slot {
int256 value;
}
struct StringSlot {
string value;
}
struct BytesSlot {
bytes value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `Int256Slot` with member `value` located at `slot`.
*/
function getInt256Slot(bytes32 slot) internal pure returns (Int256Slot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `StringSlot` with member `value` located at `slot`.
*/
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` representation of the string storage pointer `store`.
*/
function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
assembly ("memory-safe") {
r.slot := store.slot
}
}
/**
* @dev Returns a `BytesSlot` with member `value` located at `slot`.
*/
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
*/
function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
assembly ("memory-safe") {
r.slot := store.slot
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
import {IERC1155} from "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import {IERC1155MetadataURI} from "@openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol";
import {Reward} from "./IStrategyBase.sol";
import {SwapArgs} from "./ISwapper.sol";
struct StrategyArgs {
uint256 index;
uint256 amount;
}
interface IFundsFacet is IERC1155, IERC1155MetadataURI {
/**
* @dev Returns the total supply of tokens.
* @return The total supply of tokens.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the total supply of tokens for a given ID.
* @param id The token ID.
* @return The total supply of tokens for the given ID.
*/
function totalSupply(uint256 id) external view returns (uint256);
/**
* @dev Returns the last total assets value.
* @return The last total assets value.
*/
function lastTotalAssets() external view returns (uint256);
/**
* @dev Returns the timestamp of the last total assets update.
* @return The timestamp of the last total assets update.
*/
function lastTotalAssetsTimestamp() external view returns (uint64);
/**
* @dev Returns the interval for updating the last total assets.
* @return The interval for updating the last total assets.
*/
function lastTotalAssetsUpdateInterval() external view returns (uint64);
/**
* @dev Sets the interval for updating the last total assets.
* @dev Callable by FUNDS_OPERATOR.
* @param interval The new interval.
*/
function setLastTotalAssetsUpdateInterval(uint64 interval) external;
/**
* @dev Returns the underlying balance of the contract.
* @return The underlying balance.
*/
function underlyingBalance() external view returns (uint256);
/**
* @dev Returns the address of the underlying asset.
* @return The address of the underlying asset.
*/
function underlyingAsset() external view returns (address);
/**
* @dev Returns the address of the yield extractor.
* @return The address of the yield extractor.
*/
function yieldExtractor() external view returns (address);
/**
* @dev Sets the new yield extractor address.
* @dev Callable by STRATEGY_AUTHORITY.
* @param _yieldExtractor address.
*/
function setYieldExtractor(address _yieldExtractor) external;
/**
* @dev Returns the address of the swapper.
* @return The address of the swapper.
*/
function swapper() external view returns (address);
/**
* @dev Returns the total assets managed by the contract.
* @return assets The total assets managed by the contract.
*/
function totalAssets() external view returns (uint256 assets);
/**
* @dev Returns the assets managed by a specific strategy.
* @param index The index of the strategy.
* @return The assets managed by the strategy.
*/
function strategyAssets(uint256 index) external view returns (uint256);
/**
* @dev Returns the rewards for a specific strategy.
* @param index The index of the strategy.
* @return rewards The rewards for the strategy.
*/
function strategyRewards(uint256 index) external view returns (Reward[] memory rewards);
/**
* @dev Deposits assets into the contract.
* @param assets The amount of assets to deposit.
* @param projectId The project ID.
* @param receiver The address of the receiver.
* @return shares The amount of shares minted.
*/
function deposit(uint256 assets, uint256 projectId, address receiver) external returns (uint256 shares);
/**
* @dev Redeems shares from the contract.
* @param shares The amount of shares to redeem.
* @param projectId The project ID.
* @param receiver The address of the receiver.
* @return assets The amount of assets redeemed.
*/
function redeem(uint256 shares, uint256 projectId, address receiver) external returns (uint256 assets);
/**
* @dev Migrates a position from one project to another.
* @param fromProjectId The ID of the project to migrate from.
* @param toProjectId The ID of the project to migrate to.
* @param amount The amount to migrate.
*/
function migratePosition(uint256 fromProjectId, uint256 toProjectId, uint256 amount) external;
/**
* @dev Deposits assets into a strategy.
* @dev Callable by FUNDS_OPERATOR.
* @param strategyArgs The strategy arguments.
*/
function managedDeposit(StrategyArgs calldata strategyArgs) external;
/**
* @dev Withdraws assets from a strategy.
* @dev Callable by FUNDS_OPERATOR.
* @param strategyArgs The strategy arguments.
*/
function managedWithdraw(StrategyArgs calldata strategyArgs) external;
/**
* @dev Reallocates assets between strategies.
* @dev Callable by FUNDS_OPERATOR.
* @param withdrawals The strategy arguments for withdrawals.
* @param deposits The strategy arguments for deposits.
*/
function reallocate(StrategyArgs[] calldata withdrawals, StrategyArgs[] calldata deposits) external;
/**
* @dev Compounds rewards by swapping them for the underlying asset.
* @dev Callable by SWAP_REWARDS_OPERATOR.
* @param swapArgs The swap arguments.
* @return compounded The amount compounded.
*/
function swapRewards(SwapArgs[] memory swapArgs) external returns (uint256 compounded);
/**
* @dev Accrues fees.
*/
function accrueFee() external;
/**
* @dev Claims rewards from a strategy.
* @dev Callable by FUNDS_OPERATOR.
* @param index The index of the strategy.
*/
function claimStrategyRewards(uint256 index) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
struct Reward {
address token;
uint256 amount;
}
interface IStrategyBase {
/**
* @dev Returns the address of the protocol.
* @param supplement Additional data required for the protocol address determination.
* @return The address of the protocol.
*/
function protocol(bytes calldata supplement) external returns (address);
/**
* @dev Deposits the specified amount into the strategy.
* @param amount The amount to deposit.
* @param supplement Additional data required for the deposit.
*/
function deposit(uint256 amount, bytes calldata supplement) external;
/**
* @dev Withdraws the specified amount from the strategy.
* @param amount The amount to withdraw.
* @param supplement Additional data required for the withdrawal.
* @return withdrawn The actual amount withdrawn.
*/
function withdraw(uint256 amount, bytes calldata supplement) external returns (uint256 withdrawn);
/**
* @dev Withdraws all funds from strategy.
* @param supplement Additional data required for the withdrawal.
* @return withdrawn The actual amount withdrawn.
*/
function withdrawAll(bytes calldata supplement) external returns (uint256 withdrawn);
/**
* @dev Returns the asset balance of the strategy for the specified vault.
* @param yelayLiteVault The address of the vault.
* @param supplement Additional data required for the balance calculation.
* @return The asset balance of the strategy.
*/
function assetBalance(address yelayLiteVault, bytes calldata supplement) external view returns (uint256);
/**
* @dev Called when the strategy is added.
* @param supplement Additional data required for the addition.
*/
function onAdd(bytes calldata supplement) external;
/**
* @dev Called when the strategy is removed.
* @param supplement Additional data required for the removal.
*/
function onRemove(bytes calldata supplement) external;
/**
* @dev Returns the rewards available for the specified vault.
* @param yelayLiteVault The address of the vault.
* @param supplement Additional data required for the rewards calculation.
* @return rewards The rewards available for the vault.
*/
function viewRewards(address yelayLiteVault, bytes calldata supplement)
external
view
returns (Reward[] memory rewards);
/**
* @dev Claims the rewards for the strategy.
* @param supplement Additional data required for claiming the rewards.
*/
function claimRewards(bytes calldata supplement) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
struct SwapArgs {
address tokenIn;
address swapTarget;
bytes swapCallData;
}
struct ExchangeArgs {
address exchange;
bool allowed;
}
interface ISwapper {
/**
* @notice Swaps tokens according to the provided swap arguments.
* @param swapArgs The swap arguments.
* @param tokenOut The token to be received.
* @return tokenOutAmount The amount of tokenOut received.
*/
function swap(SwapArgs[] memory swapArgs, address tokenOut) external returns (uint256 tokenOutAmount);
/**
* @notice Updates the exchange allowlist.
* @param exchangeArgs The exchange arguments.
*/
function updateExchangeAllowlist(ExchangeArgs[] calldata exchangeArgs) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
library LibErrors {
// ===================== OwnerFacet ================================
/**
* @dev The caller account is not authorized to perform an operation.
* @param account The address of the unauthorized account.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The function selector is invalid.
* @param selector The invalid function selector.
*/
error InvalidSelector(bytes4 selector);
// ===================== ClientsFacet ================================
/**
* @dev The owner address is already used by some client.
*/
error ClientOwnerReserved();
/**
* @dev The caller is not the client owner.
*/
error NotClientOwner();
/**
* @dev The project ID is out of bounds.
*/
error OutOfBoundProjectId();
/**
* @dev The project is already active.
*/
error ProjectActive();
/**
* @dev The client name is empty.
*/
error ClientNameEmpty();
/**
* @dev The client name is empty.
*/
error ReservedProjectsIsZero();
/**
* @dev The client name is already taken.
*/
error ClientNameTaken();
// ===================== FundsFacet ================================
/**
* @dev The project is inactive.
*/
error ProjectInactive();
/**
* @dev The function can only be called in a view context.
*/
error OnlyView();
/**
* @dev Compounding the underlying asset is forbidden.
*/
error CompoundUnderlyingForbidden();
/**
* @dev Position migration is forbidden.
*/
error PositionMigrationForbidden();
/**
* @dev There is not enough underlying assets in YelayLiteVault to cover redeem.
*/
error NotEnoughInternalFunds();
/**
* @dev Redeem doesn't pass minimum asset amount
*/
error MinRedeem();
/**
* @dev During swapRewards totalAssets have been reduced
*/
error TotalAssetsLoss();
// ===================== SwapWrapper ================================
/**
* @dev The token is not WETH.
*/
error NotWeth();
/**
* @dev No ETH available.
*/
error NoEth();
// ===================== ManagementFacet ================================
/**
* @dev The assets were not withdrawn from strategy.
*/
error StrategyNotEmpty();
/**
* @dev The strategy is already registered.
*/
error StrategyRegistered();
/**
* @dev The strategy is already active.
*/
error StrategyActive();
// ===================== LibPausable ================================
/**
* @dev The function is paused.
* @param selector The function selector that is paused.
*/
error Paused(bytes4 selector);
// ===================== Swapper ================================
/**
* @notice Used when trying to do a swap via an exchange that is not allowed to execute a swap.
* @param exchange Exchange used.
*/
error ExchangeNotAllowed(address exchange);
/**
* @notice Used when there is nothing to swap.
* @param tokenIn The token that was intended to be swapped.
*/
error NothingToSwap(address tokenIn);
/**
* @notice Used when nothing was swapped.
* @param tokenOut The token that was intended to be received.
*/
error NothingSwapped(address tokenOut);
// ===================== DepositLockPlugin ================================
/**
* @dev The caller is not the project owner.
* @param vault The address of the vault.
* @param projectId The ID of the project.
* @param caller The address of the caller.
*/
error NotProjectOwner(address vault, uint256 projectId, address caller);
/**
* @dev The lock period exceeds the maximum allowable period.
* @param lockPeriod The lock period.
*/
error LockPeriodExceedsMaximum(uint256 lockPeriod);
/**
* @dev Lock Mode is unset for the project.
* @param vault The address of the vault.
* @param projectId The ID of the project.
*/
error LockModeNotSetForProject(address vault, uint256 projectId);
/**
* @dev The requested shares to remove is not available.
* @param requested The requested shares to remove.
* @param available The available shares to remove.
*/
error NotEnoughShares(uint256 requested, uint256 available);
/**
* @dev The project is still locked, withdrawals are not allowed.
* @param unlockTime The unlock time.
*/
error GlobalUnlockTimeNotReached(uint256 unlockTime);
/**
* @dev Project is unlocked, deposits are not allowed.
* @param unlockTime The unlock time.
*/
error GlobalUnlockTimeReached(uint256 unlockTime);
/**
* @dev The lock mode is already set for the project.
* @param vault The address of the vault.
* @param projectId The ID of the project.
* @param lockMode The lock mode.
*/
error LockModeAlreadySet(address vault, uint256 projectId, uint256 lockMode);
/**
* @dev The lock mode mismatch for particular project.
* @param vault The address of the vault.
* @param projectId The ID of the project.
* @param lockMode The lock mode.
*/
error LockModeMismatch(address vault, uint256 projectId, uint256 lockMode);
// ===================== YieldExtractor ================================
/**
* @notice Thrown when a Merkle proof is invalid
* @param idx Index of the invalid claim request
*/
error InvalidProof(uint256 idx);
/**
* @notice Thrown when a proof has already been claimed
* @param idx Index of the already claimed proof
*/
error ProofAlreadyClaimed(uint256 idx);
/**
* @notice Thrown when an invalid cycle number is provided
*/
error InvalidCycle();
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
library LibEvents {
// FundsFacet
/**
* @dev Emitted when assets are deposited.
* @param projectId The ID of the project.
* @param sender The address of the sender.
* @param receiver The address of the receiver.
* @param assets The amount of assets deposited.
* @param shares The amount of shares minted.
*/
event Deposit(
uint256 indexed projectId, address indexed sender, address indexed receiver, uint256 assets, uint256 shares
);
/**
* @dev Emitted when assets are redeemed.
* @param projectId The ID of the project.
* @param sender The address of the sender.
* @param receiver The address of the receiver.
* @param assets The amount of assets redeemed.
* @param shares The amount of shares burned.
*/
event Redeem(
uint256 indexed projectId, address indexed sender, address indexed receiver, uint256 assets, uint256 shares
);
/**
* @dev Emitted when assets are deposited into a strategy.
* @param strategy The name of the strategy.
* @param amount The amount of assets deposited.
*/
event ManagedDeposit(bytes32 indexed strategy, uint256 amount);
/**
* @dev Emitted when assets are withdrawn from a strategy.
* @param strategy The name of the strategy.
* @param amount The amount of assets withdrawn.
*/
event ManagedWithdraw(bytes32 indexed strategy, uint256 amount);
/**
* @dev Emitted when interest is accrued.
* @param newTotalAssets The new total assets value.
* @param interest The amount of interest accrued.
* @param feeShares The amount of fee shares minted.
*/
event AccrueInterest(uint256 newTotalAssets, uint256 interest, uint256 feeShares);
/**
* @dev Emitted when the last total assets value is updated.
* @param lastTotalAssets The updated last total assets value.
*/
event UpdateLastTotalAssets(uint256 lastTotalAssets);
/**
* @dev Emitted when the yield extractor address is updated.
* @param newYieldExtractor address.
*/
event UpdateYieldExtractor(address newYieldExtractor);
/**
* @dev Emitted when assets are compounded.
* @param amount The amount of assets compounded.
*/
event Compounded(uint256 amount);
/**
* @dev Emitted when a position is migrated.
* @param account The address of the account.
* @param fromProjectId The ID of the project from which the position is migrated.
* @param toProjectId The ID of the project to which the position is migrated.
* @param shares The amount of shares migrated.
*/
event PositionMigrated(
address indexed account, uint256 indexed fromProjectId, uint256 indexed toProjectId, uint256 shares
);
/**
* @dev Emitted when lastTotalAssetsUpdateInterval is updated.
* @param newInterval The new interval for updating lastTotalAssets.
*/
event UpdateLastTotalAssetsUpdateInterval(uint256 newInterval);
// ManagementFacet
/**
* @dev Emitted when the deposit queue is updated.
*/
event UpdateDepositQueue();
/**
* @dev Emitted when the withdraw queue is updated.
*/
event UpdateWithdrawQueue();
/**
* @dev Emitted when a strategy is added.
* @param strategy The address of the strategy.
* @param supplement Additional data for the strategy.
*/
event AddStrategy(address indexed strategy, bytes supplement);
/**
* @dev Emitted when a strategy is removed.
* @param strategy The address of the strategy.
* @param supplement Additional data for the strategy.
*/
event RemoveStrategy(address indexed strategy, bytes supplement);
/**
* @dev Emitted when a strategy is activate.
* @param strategy The address of the strategy.
* @param supplement Additional data for the strategy.
*/
event ActivateStrategy(address indexed strategy, bytes supplement);
/**
* @dev Emitted when a strategy is deactivated.
* @param strategy The address of the strategy.
* @param supplement Additional data for the strategy.
*/
event DeactivateStrategy(address indexed strategy, bytes supplement);
// ClientsFacet
/**
* @dev Emitted when new project IDs are assigned to a client.
* @param owner The address of the client owner.
* @param minProjectId The minimum project ID.
* @param maxProjectId The maximum project ID.
*/
event NewProjectIds(address indexed owner, uint256 minProjectId, uint256 maxProjectId);
/**
* @dev Emitted when project ownership is transferred.
* @param clientName The name of the client.
* @param oldOwner The address of the old owner.
* @param newOwner The address of the new owner.
*/
event ClientOwnershipTransfer(bytes32 indexed clientName, address indexed oldOwner, address indexed newOwner);
/**
* @dev Emitted when a project is activated.
* @param project The ID of the activated project.
*/
event ProjectActivated(uint256 indexed project);
// OwnerFacet
/**
* @dev Emitted when the ownership transfer process is started.
* @param previousOwner The address of the previous owner.
* @param newOwner The address of the new owner.
*/
event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);
/**
* @dev Emitted when the ownership transfer process is completed.
* @param previousOwner The address of the previous owner.
* @param newOwner The address of the new owner.
*/
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Emitted when a function selector is mapped to a facet.
* @param selector The function selector.
* @param facet The address of the facet.
*/
event SelectorToFacetSet(bytes4 indexed selector, address indexed facet);
// AccessFacet
/**
* @dev Emitted when a method is paused or unpaused.
* @param selector The function selector.
* @param paused The paused state.
*/
event PausedChange(bytes4 selector, bool paused);
// Swapper
/**
* @notice Emitted when the exchange allowlist is updated.
* @param exchange Exchange that was updated.
* @param isAllowed Whether the exchange is allowed to be used in a swap or not after the update.
*/
event ExchangeAllowlistUpdated(address indexed exchange, bool isAllowed);
// DepositLockPlugin
/**
* @notice Event emitted when a deposit is locked in a vault.
* @param vault The address of the vault.
* @param projectId The project identifier.
* @param user The address of the user.
* @param shares The amount of shares locked.
* @param assets The amount of underlying assets deposited.
*/
event DepositLocked(
address indexed user, address indexed vault, uint256 indexed projectId, uint256 shares, uint256 assets
);
/**
* @notice Event emitted when a user redeems locked shares in a vault.
* @param user The address of the user.
* @param vault The address of the vault.
* @param projectId The project identifier.
* @param shares The amount of shares redeemed.
* @param assets The amount of underlying assets redeemed.
*/
event RedeemLocked(
address indexed user, address indexed vault, uint256 indexed projectId, uint256 shares, uint256 assets
);
/**
* @notice Event emitted when a user's shares are migrated from one project to another.
* @param user The address of the user.
* @param vault The address of the vault.
* @param fromProjectId The project identifier from which the position is migrated.
* @param toProjectId The project identifier to which the position is migrated.
* @param shares The amount of shares migrated.
*/
event MigrateLocked(
address indexed user, address indexed vault, uint256 fromProjectId, uint256 toProjectId, uint256 shares
);
/**
* @notice Event emitted when the lock period for a project in a vault is updated.
* @param vault The address of the vault.
* @param projectId The project identifier.
* @param lockPeriod The new lock period.
*/
event LockPeriodUpdated(address indexed vault, uint256 indexed projectId, uint256 lockPeriod);
/**
* @notice Event emitted when the global unlock time for a vault is updated.
* @param vault The address of the vault.
* @param projectId The project identifier.
* @param unlockTime The new global unlock time.
*/
event GlobalUnlockTimeUpdated(address indexed vault, uint256 indexed projectId, uint256 unlockTime);
// YieldExtractor
/**
* @notice New root was added to the pool
* @param yelayLiteVault yelayLiteVault address
* @param cycle Number of new cycle
* @param rootHash Newly added root hash
* @param rootBlocknumber Newly added root block number
*/
event PoolRootAdded(
address indexed yelayLiteVault, uint256 indexed cycle, bytes32 rootHash, uint256 rootBlocknumber
);
/**
* @notice Pool's root was updated
* @param yelayLiteVault yelayLiteVault address
* @param cycle Number of cycle that was updated
* @param previousRootHash Previous root hash for the cycle
* @param newRootHash New root hash for the cycle
* @param newRootBlocknumber New root blocknumber for the cycle
*/
event PoolRootUpdated(
address indexed yelayLiteVault,
uint256 indexed cycle,
bytes32 previousRootHash,
bytes32 newRootHash,
uint256 newRootBlocknumber
);
/**
* @notice Claimed yield
* @param user claimer
* @param yelayLiteVault yelayLiteVault address
* @param projectId project id
* @param cycle cycle number
* @param amount claimed amount
*/
event YieldClaimed(
address indexed user, address indexed yelayLiteVault, uint256 indexed projectId, uint256 cycle, uint256 amount
);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
library LibRoles {
// 0xbf935b513649871c60054e0279e4e5798d3dfd05785c3c3c5b311fb39ec270fe
bytes32 constant STRATEGY_AUTHORITY = keccak256("STRATEGY_AUTHORITY");
// 0xffd2865c3eadba5ddbf1543e65a692d7001b37f737db7363a54642156548df64
bytes32 constant FUNDS_OPERATOR = keccak256("FUNDS_OPERATOR");
// 0xb95e9900cc6e2c54ae5b00d8f86008697b24bf67652a40653ea0c09c6fc4a856
bytes32 constant QUEUES_OPERATOR = keccak256("QUEUES_OPERATOR");
// 0x8bf6ce5ec02ea9a811a4884ff857c405447f2dfa3ad4c8a5e93888abb5d17ceb
bytes32 constant SWAP_REWARDS_OPERATOR = keccak256("SWAP_REWARDS_OPERATOR");
// 0x539440820030c4994db4e31b6b800deafd503688728f932addfe7a410515c14c
bytes32 constant PAUSER = keccak256("PAUSER");
// 0x82b32d9ab5100db08aeb9a0e08b422d14851ec118736590462bf9c085a6e9448
bytes32 constant UNPAUSER = keccak256("UNPAUSER");
// 0xe1e438f510a6787349796e72348290fc4309699b8925cfe7df77feeaca3b7020
bytes32 constant YIELD_PUBLISHER = keccak256("YIELD_PUBLISHER");
}{
"evmVersion": "cancun",
"optimizer": {
"enabled": true,
"runs": 10000
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
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YieldExtractor.Root","name":"root","type":"tuple"},{"internalType":"uint256","name":"cycle","type":"uint256"},{"internalType":"address","name":"yelayLiteVault","type":"address"}],"name":"updateTreeRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"yelayLiteVault","type":"address"},{"internalType":"uint256","name":"projectId","type":"uint256"},{"internalType":"uint256","name":"cycle","type":"uint256"},{"internalType":"uint256","name":"yieldSharesTotal","type":"uint256"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"internalType":"struct YieldExtractor.ClaimRequest","name":"data","type":"tuple"},{"internalType":"address","name":"user","type":"address"}],"name":"verify","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"yieldSharesClaimed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]Contract Creation Code
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Net Worth in USD
$0.00
Net Worth in S
Multichain Portfolio | 35 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.