Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- IncentiveEmissionHub
- Optimization enabled
- true
- Compiler version
- v0.8.17+commit.8df45f5f
- Optimization runs
- 200
- EVM Version
- default
- Verified at
- 2024-06-02T12:12:55.420680Z
contracts/multichain/taiko/IncentiveEmissionHub.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/proxy/utils/Initializable.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/utils/math/SafeCast.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "./interfaces/IIncentiveEmissionHub.sol"; import "../../libraries/PauseControl.sol"; import "../../libraries/ErrorCodes.sol"; contract IncentiveEmissionHub is IIncentiveEmissionHub, Initializable, ReentrancyGuard, AccessControl, PauseControl { using SafeCast for uint256; using SafeERC20 for IERC20; /// @dev The right part is the keccak-256 hash of "GATEKEEPER" bytes32 public constant GATEKEEPER = bytes32(0x20162831d2f54c3e11eebafebfeda495d4c52c67b1708251179ec91fb76dd3b2); // // // // Pause control bytes32 internal constant WITHDRAW_OP = "Withdraw"; uint256 internal constant EXP_SCALE = 1e18; /// @dev The rate at which MANTLE token is distributed to the corresponding supply market (MANTLE / MINTY rate) mapping(IMToken => uint256) public rewardSupplyCoefficient; /// @dev The rate at which MANTLE token is distributed to the corresponding supply market (MANTLE / MINTY rate) mapping(IMToken => uint256) public rewardBorrowCoefficient; IRewardsHubLight public rewardsHub; IERC20 public token; /// @dev Contains amounts of incentive rewards for individual accounts. mapping(address => uint256) public balances; function initialize( address admin_, IRewardsHubLight _rewardsHub, IERC20 _token ) public initializer { _grantRole(DEFAULT_ADMIN_ROLE, admin_); _grantRole(GATEKEEPER, admin_); rewardsHub = _rewardsHub; token = _token; } /// @inheritdoc IIncentiveEmissionHub function calculateIncentiveRewards( IMToken market, uint256 accruedBaseReward, bool isSupply ) external view returns (uint256) { uint256 convertCoefficient = isSupply ? rewardSupplyCoefficient[market] : rewardBorrowCoefficient[market]; return (accruedBaseReward * convertCoefficient) / EXP_SCALE; } /// @inheritdoc IIncentiveEmissionHub function assignRewards(address account, uint256 rewardsAmount) external { require(msg.sender == address(rewardsHub), ErrorCodes.UNAUTHORIZED); if (address(token) == address(0)) return; balances[account] += rewardsAmount; emit RewardAssigned(account, rewardsAmount); } /// @inheritdoc IIncentiveEmissionHub function setRewardSupplyCoefficient(IMToken market, uint256 newSupplyCoefficient) external onlyRole(DEFAULT_ADMIN_ROLE) { rewardSupplyCoefficient[market] = newSupplyCoefficient; emit SupplyCoefficientUpdated(market, newSupplyCoefficient); } /// @inheritdoc IIncentiveEmissionHub function setRewardBorrowCoefficient(IMToken market, uint256 newBorrowCoefficient) external onlyRole(DEFAULT_ADMIN_ROLE) { rewardBorrowCoefficient[market] = newBorrowCoefficient; emit BorrowCoefficientUpdated(market, newBorrowCoefficient); } /// @inheritdoc IIncentiveEmissionHub function withdraw(uint256 amount) external checkPaused(WITHDRAW_OP) { uint256 balance = balances[msg.sender]; if (amount == type(uint256).max) amount = balance; require(amount > 0, ErrorCodes.INCORRECT_AMOUNT); require(amount <= balance, ErrorCodes.INCORRECT_AMOUNT); require(address(token) != address(0), ErrorCodes.ZERO_ADDRESS); balances[msg.sender] = balance - amount; emit RewardWithdraw(msg.sender, amount); token.safeTransfer(msg.sender, amount); } /// @inheritdoc IIncentiveEmissionHub function grant(address recipient, uint256 amount) external onlyRole(DEFAULT_ADMIN_ROLE) { require(amount > 0, ErrorCodes.INCORRECT_AMOUNT); require(address(token) != address(0), ErrorCodes.ZERO_ADDRESS); uint256 balance = token.balanceOf(address(this)); require(balance >= amount, ErrorCodes.INCORRECT_AMOUNT); emit RewardGranted(recipient, amount); token.safeTransfer(recipient, amount); } function validatePause(address) internal view override { require(hasRole(GATEKEEPER, msg.sender), ErrorCodes.UNAUTHORIZED); } function validateUnpause(address) internal view override { require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), ErrorCodes.UNAUTHORIZED); } function setIncentiveToken(IERC20 newIncentiveToken) external onlyRole(DEFAULT_ADMIN_ROLE) { require(address(token) == address(0), ErrorCodes.SECOND_INITIALIZATION); require(address(newIncentiveToken) != address(0), ErrorCodes.ZERO_ADDRESS); token = newIncentiveToken; emit NewIncentiveToken(address(newIncentiveToken)); } }
@openzeppelin/contracts/access/AccessControl.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.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 AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(account), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @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 override returns (bytes32) { 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 override 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 override 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 `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
@openzeppelin/contracts/access/IAccessControl.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @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. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
@openzeppelin/contracts/interfaces/IERC3156FlashBorrower.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC3156FlashBorrower.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC3156 FlashBorrower, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. * * _Available since v4.1._ */ interface IERC3156FlashBorrower { /** * @dev Receive a flash loan. * @param initiator The initiator of the loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @param fee The additional amount of tokens to repay. * @param data Arbitrary data structure, intended to contain user-defined parameters. * @return The keccak256 hash of "ERC3156FlashBorrower.onFlashLoan" */ function onFlashLoan( address initiator, address token, uint256 amount, uint256 fee, bytes calldata data ) external returns (bytes32); }
@openzeppelin/contracts/interfaces/IERC3156FlashLender.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC3156FlashLender.sol) pragma solidity ^0.8.0; import "./IERC3156FlashBorrower.sol"; /** * @dev Interface of the ERC3156 FlashLender, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. * * _Available since v4.1._ */ interface IERC3156FlashLender { /** * @dev The amount of currency available to be lended. * @param token The loan currency. * @return The amount of `token` that can be borrowed. */ function maxFlashLoan(address token) external view returns (uint256); /** * @dev The fee to be charged for a given loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @return The amount of `token` to be charged for the loan, on top of the returned principal. */ function flashFee(address token, uint256 amount) external view returns (uint256); /** * @dev Initiate a flash loan. * @param receiver The receiver of the tokens in the loan, and the receiver of the callback. * @param token The loan currency. * @param amount The amount of tokens lent. * @param data Arbitrary data structure, intended to contain user-defined parameters. */ function flashLoan( IERC3156FlashBorrower receiver, address token, uint256 amount, bytes calldata data ) external returns (bool); }
@openzeppelin/contracts/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/Address.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ```solidity * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. * * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a * constructor. * * Emits an {Initialized} event. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!Address.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * A reinitializer may be used after the original initialization step. This is essential to configure modules that * are added through upgrades and that require initialization. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. * * WARNING: setting the version to 255 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized != type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint8) { return _initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _initializing; } }
@openzeppelin/contracts/security/ReentrancyGuard.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be _NOT_ENTERED require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { return _status == _ENTERED; } }
@openzeppelin/contracts/token/ERC20/IERC20.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); }
@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value)); } /** * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value)); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, approvalCall); } } /** * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`. * Revert on invalid signature. */ function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token)); } }
@openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
@openzeppelin/contracts/utils/Context.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
@openzeppelin/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; import "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toString(int256 value) internal pure returns (string memory) { return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value)))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return keccak256(bytes(a)) == keccak256(bytes(b)); } }
@openzeppelin/contracts/utils/introspection/ERC165.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
@openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
@openzeppelin/contracts/utils/math/Math.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv 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. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * 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 + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } }
@openzeppelin/contracts/utils/math/SafeCast.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol) // This file was procedurally generated from scripts/generate/templates/SafeCast.js. pragma solidity ^0.8.0; /** * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow * checks. * * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can * easily result in undesired exploitation or bugs, since developers usually * assume that overflows raise errors. `SafeCast` restores this intuition by * reverting the transaction when such an operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. * * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing * all math on `uint256` and `int256` and then downcasting. */ library SafeCast { /** * @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 * * _Available since v4.7._ */ function toUint248(uint256 value) internal pure returns (uint248) { require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits"); 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 * * _Available since v4.7._ */ function toUint240(uint256 value) internal pure returns (uint240) { require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits"); 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 * * _Available since v4.7._ */ function toUint232(uint256 value) internal pure returns (uint232) { require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits"); 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 * * _Available since v4.2._ */ function toUint224(uint256 value) internal pure returns (uint224) { require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits"); 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 * * _Available since v4.7._ */ function toUint216(uint256 value) internal pure returns (uint216) { require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits"); 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 * * _Available since v4.7._ */ function toUint208(uint256 value) internal pure returns (uint208) { require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits"); 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 * * _Available since v4.7._ */ function toUint200(uint256 value) internal pure returns (uint200) { require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits"); 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 * * _Available since v4.7._ */ function toUint192(uint256 value) internal pure returns (uint192) { require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits"); 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 * * _Available since v4.7._ */ function toUint184(uint256 value) internal pure returns (uint184) { require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits"); 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 * * _Available since v4.7._ */ function toUint176(uint256 value) internal pure returns (uint176) { require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits"); 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 * * _Available since v4.7._ */ function toUint168(uint256 value) internal pure returns (uint168) { require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits"); 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 * * _Available since v4.7._ */ function toUint160(uint256 value) internal pure returns (uint160) { require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits"); 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 * * _Available since v4.7._ */ function toUint152(uint256 value) internal pure returns (uint152) { require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits"); 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 * * _Available since v4.7._ */ function toUint144(uint256 value) internal pure returns (uint144) { require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits"); 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 * * _Available since v4.7._ */ function toUint136(uint256 value) internal pure returns (uint136) { require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits"); 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 * * _Available since v2.5._ */ function toUint128(uint256 value) internal pure returns (uint128) { require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits"); 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 * * _Available since v4.7._ */ function toUint120(uint256 value) internal pure returns (uint120) { require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits"); 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 * * _Available since v4.7._ */ function toUint112(uint256 value) internal pure returns (uint112) { require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits"); 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 * * _Available since v4.7._ */ function toUint104(uint256 value) internal pure returns (uint104) { require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits"); 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 * * _Available since v4.2._ */ function toUint96(uint256 value) internal pure returns (uint96) { require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits"); 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 * * _Available since v4.7._ */ function toUint88(uint256 value) internal pure returns (uint88) { require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits"); 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 * * _Available since v4.7._ */ function toUint80(uint256 value) internal pure returns (uint80) { require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits"); 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 * * _Available since v4.7._ */ function toUint72(uint256 value) internal pure returns (uint72) { require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits"); 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 * * _Available since v2.5._ */ function toUint64(uint256 value) internal pure returns (uint64) { require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits"); 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 * * _Available since v4.7._ */ function toUint56(uint256 value) internal pure returns (uint56) { require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits"); 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 * * _Available since v4.7._ */ function toUint48(uint256 value) internal pure returns (uint48) { require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits"); 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 * * _Available since v4.7._ */ function toUint40(uint256 value) internal pure returns (uint40) { require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits"); 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 * * _Available since v2.5._ */ function toUint32(uint256 value) internal pure returns (uint32) { require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits"); 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 * * _Available since v4.7._ */ function toUint24(uint256 value) internal pure returns (uint24) { require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits"); 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 * * _Available since v2.5._ */ function toUint16(uint256 value) internal pure returns (uint16) { require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits"); 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 * * _Available since v2.5._ */ function toUint8(uint256 value) internal pure returns (uint8) { require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits"); return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. * * _Available since v3.0._ */ function toUint256(int256 value) internal pure returns (uint256) { require(value >= 0, "SafeCast: value must be positive"); 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 * * _Available since v4.7._ */ function toInt248(int256 value) internal pure returns (int248 downcasted) { downcasted = int248(value); require(downcasted == value, "SafeCast: value doesn't fit in 248 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt240(int256 value) internal pure returns (int240 downcasted) { downcasted = int240(value); require(downcasted == value, "SafeCast: value doesn't fit in 240 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt232(int256 value) internal pure returns (int232 downcasted) { downcasted = int232(value); require(downcasted == value, "SafeCast: value doesn't fit in 232 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt224(int256 value) internal pure returns (int224 downcasted) { downcasted = int224(value); require(downcasted == value, "SafeCast: value doesn't fit in 224 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt216(int256 value) internal pure returns (int216 downcasted) { downcasted = int216(value); require(downcasted == value, "SafeCast: value doesn't fit in 216 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt208(int256 value) internal pure returns (int208 downcasted) { downcasted = int208(value); require(downcasted == value, "SafeCast: value doesn't fit in 208 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt200(int256 value) internal pure returns (int200 downcasted) { downcasted = int200(value); require(downcasted == value, "SafeCast: value doesn't fit in 200 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt192(int256 value) internal pure returns (int192 downcasted) { downcasted = int192(value); require(downcasted == value, "SafeCast: value doesn't fit in 192 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt184(int256 value) internal pure returns (int184 downcasted) { downcasted = int184(value); require(downcasted == value, "SafeCast: value doesn't fit in 184 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt176(int256 value) internal pure returns (int176 downcasted) { downcasted = int176(value); require(downcasted == value, "SafeCast: value doesn't fit in 176 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt168(int256 value) internal pure returns (int168 downcasted) { downcasted = int168(value); require(downcasted == value, "SafeCast: value doesn't fit in 168 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt160(int256 value) internal pure returns (int160 downcasted) { downcasted = int160(value); require(downcasted == value, "SafeCast: value doesn't fit in 160 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt152(int256 value) internal pure returns (int152 downcasted) { downcasted = int152(value); require(downcasted == value, "SafeCast: value doesn't fit in 152 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt144(int256 value) internal pure returns (int144 downcasted) { downcasted = int144(value); require(downcasted == value, "SafeCast: value doesn't fit in 144 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt136(int256 value) internal pure returns (int136 downcasted) { downcasted = int136(value); require(downcasted == value, "SafeCast: value doesn't fit in 136 bits"); } /** * @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 * * _Available since v3.1._ */ function toInt128(int256 value) internal pure returns (int128 downcasted) { downcasted = int128(value); require(downcasted == value, "SafeCast: value doesn't fit in 128 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt120(int256 value) internal pure returns (int120 downcasted) { downcasted = int120(value); require(downcasted == value, "SafeCast: value doesn't fit in 120 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt112(int256 value) internal pure returns (int112 downcasted) { downcasted = int112(value); require(downcasted == value, "SafeCast: value doesn't fit in 112 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt104(int256 value) internal pure returns (int104 downcasted) { downcasted = int104(value); require(downcasted == value, "SafeCast: value doesn't fit in 104 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt96(int256 value) internal pure returns (int96 downcasted) { downcasted = int96(value); require(downcasted == value, "SafeCast: value doesn't fit in 96 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt88(int256 value) internal pure returns (int88 downcasted) { downcasted = int88(value); require(downcasted == value, "SafeCast: value doesn't fit in 88 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt80(int256 value) internal pure returns (int80 downcasted) { downcasted = int80(value); require(downcasted == value, "SafeCast: value doesn't fit in 80 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt72(int256 value) internal pure returns (int72 downcasted) { downcasted = int72(value); require(downcasted == value, "SafeCast: value doesn't fit in 72 bits"); } /** * @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 * * _Available since v3.1._ */ function toInt64(int256 value) internal pure returns (int64 downcasted) { downcasted = int64(value); require(downcasted == value, "SafeCast: value doesn't fit in 64 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt56(int256 value) internal pure returns (int56 downcasted) { downcasted = int56(value); require(downcasted == value, "SafeCast: value doesn't fit in 56 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt48(int256 value) internal pure returns (int48 downcasted) { downcasted = int48(value); require(downcasted == value, "SafeCast: value doesn't fit in 48 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt40(int256 value) internal pure returns (int40 downcasted) { downcasted = int40(value); require(downcasted == value, "SafeCast: value doesn't fit in 40 bits"); } /** * @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 * * _Available since v3.1._ */ function toInt32(int256 value) internal pure returns (int32 downcasted) { downcasted = int32(value); require(downcasted == value, "SafeCast: value doesn't fit in 32 bits"); } /** * @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 * * _Available since v4.7._ */ function toInt24(int256 value) internal pure returns (int24 downcasted) { downcasted = int24(value); require(downcasted == value, "SafeCast: value doesn't fit in 24 bits"); } /** * @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 * * _Available since v3.1._ */ function toInt16(int256 value) internal pure returns (int16 downcasted) { downcasted = int16(value); require(downcasted == value, "SafeCast: value doesn't fit in 16 bits"); } /** * @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 * * _Available since v3.1._ */ function toInt8(int256 value) internal pure returns (int8 downcasted) { downcasted = int8(value); require(downcasted == value, "SafeCast: value doesn't fit in 8 bits"); } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. * * _Available since v3.0._ */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256"); return int256(value); } }
@openzeppelin/contracts/utils/math/SignedMath.sol
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.0; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
contracts/interfaces/IInterestRateModel.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; /** * @title Minterest InterestRateModel Interface * @author Minterest */ interface IInterestRateModel { /** * @notice Calculates the current borrow interest rate per block * @param cash The total amount of cash the market has * @param borrows The total amount of borrows the market has outstanding * @param protocolInterest The total amount of protocol interest the market has * @return The borrow rate per block (as a percentage, and scaled by 1e18) */ function getBorrowRate( uint256 cash, uint256 borrows, uint256 protocolInterest ) external view returns (uint256); /** * @notice Calculates the current supply interest rate per block * @param cash The total amount of cash the market has * @param borrows The total amount of borrows the market has outstanding * @param protocolInterest The total amount of protocol interest the market has * @param protocolInterestFactorMantissa The current protocol interest factor the market has * @return The supply rate per block (as a percentage, and scaled by 1e18) */ function getSupplyRate( uint256 cash, uint256 borrows, uint256 protocolInterest, uint256 protocolInterestFactorMantissa ) external view returns (uint256); }
contracts/interfaces/ILinkageLeaf.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; import "./ILinkageRoot.sol"; interface ILinkageLeaf { /** * @notice Emitted when root contract address is changed */ event LinkageRootSwitched(ILinkageRoot newRoot, ILinkageRoot oldRoot); /** * @notice Connects new root contract address * @param newRoot New root contract address */ function switchLinkageRoot(ILinkageRoot newRoot) external; }
contracts/interfaces/ILinkageRoot.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; interface ILinkageRoot { /** * @notice Emitted when new root contract connected to all leafs */ event LinkageRootSwitch(ILinkageRoot newRoot); /** * @notice Emitted when root interconnects its contracts */ event LinkageRootInterconnected(); /** * @notice Connects new root to all leafs contracts * @param newRoot New root contract address */ function switchLinkageRoot(ILinkageRoot newRoot) external; /** * @notice Update root for all leaf contracts * @dev Should include only leaf contracts */ function interconnect() external; }
contracts/interfaces/IMToken.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; import "@openzeppelin/contracts/interfaces/IERC3156FlashLender.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; import "@openzeppelin/contracts/access/IAccessControl.sol"; import "./IInterestRateModel.sol"; interface IMToken is IAccessControl, IERC20, IERC3156FlashLender, IERC165 { /** * @notice Event emitted when interest is accrued */ event AccrueInterest( uint256 cashPrior, uint256 interestAccumulated, uint256 borrowIndex, uint256 totalBorrows, uint256 totalProtocolInterest ); /** * @notice Event emitted when tokens are lended */ event Lend(address lender, uint256 lendAmount, uint256 lendTokens, uint256 newTotalTokenSupply); /** * @notice Event emitted when tokens are redeemed */ event Redeem(address redeemer, uint256 redeemAmount, uint256 redeemTokens, uint256 newTotalTokenSupply); /** * @notice Event emitted when underlying is borrowed */ event Borrow(address borrower, uint256 borrowAmount, uint256 accountBorrows, uint256 totalBorrows); /** * @notice Event emitted when tokens are seized */ event Seize( address borrower, address receiver, uint256 seizeTokens, uint256 accountsTokens, uint256 totalSupply, uint256 seizeUnderlyingAmount ); /** * @notice Event emitted when a borrow is repaid */ event RepayBorrow( address payer, address borrower, uint256 repayAmount, uint256 accountBorrows, uint256 totalBorrows ); /** * @notice Event emitted when a borrow is repaid during autoliquidation */ event AutoLiquidationRepayBorrow( address borrower, uint256 repayAmount, uint256 accountBorrowsNew, uint256 totalBorrowsNew, uint256 TotalProtocolInterestNew ); /** * @notice Event emitted when flash loan is executed */ event FlashLoanExecuted(address receiver, uint256 amount, uint256 fee); /** * @notice Event emitted when interestRateModel is changed */ event NewMarketInterestRateModel(IInterestRateModel oldInterestRateModel, IInterestRateModel newInterestRateModel); /** * @notice Event emitted when the protocol interest factor is changed */ event NewProtocolInterestFactor( uint256 oldProtocolInterestFactorMantissa, uint256 newProtocolInterestFactorMantissa ); /** * @notice Event emitted when the flash loan max share is changed */ event NewFlashLoanMaxShare(uint256 oldMaxShare, uint256 newMaxShare); /** * @notice Event emitted when the flash loan fee is changed */ event NewFlashLoanFee(uint256 oldFee, uint256 newFee); /** * @notice Event emitted when the protocol interest are added */ event ProtocolInterestAdded(address benefactor, uint256 addAmount, uint256 newTotalProtocolInterest); /** * @notice Event emitted when the protocol interest reduced */ event ProtocolInterestReduced(address admin, uint256 reduceAmount, uint256 newTotalProtocolInterest); /** * @notice Value is the Keccak-256 hash of "TIMELOCK" */ function TIMELOCK() external view returns (bytes32); /** * @notice Underlying asset for this MToken */ function underlying() external view returns (IERC20); /** * @notice EIP-20 token name for this token */ function name() external view returns (string memory); /** * @notice EIP-20 token symbol for this token */ function symbol() external view returns (string memory); /** * @notice EIP-20 token decimals for this token */ function decimals() external view returns (uint8); /** * @notice Model which tells what the current interest rate should be */ function interestRateModel() external view returns (IInterestRateModel); /** * @notice Initial exchange rate used when lending the first MTokens (used when totalTokenSupply = 0) */ function initialExchangeRateMantissa() external view returns (uint256); /** * @notice Fraction of interest currently set aside for protocol interest */ function protocolInterestFactorMantissa() external view returns (uint256); /** * @notice Block number that interest was last accrued at */ function accrualBlockNumber() external view returns (uint256); /** * @notice Accumulator of the total earned interest rate since the opening of the market */ function borrowIndex() external view returns (uint256); /** * @notice Total amount of outstanding borrows of the underlying in this market */ function totalBorrows() external view returns (uint256); /** * @notice Total amount of protocol interest of the underlying held in this market */ function totalProtocolInterest() external view returns (uint256); /** * @notice Share of market's current underlying token balance that can be used as flash loan (scaled by 1e18). */ function maxFlashLoanShare() external view returns (uint256); /** * @notice Share of flash loan amount that would be taken as fee (scaled by 1e18). */ function flashLoanFeeShare() external view returns (uint256); /** * @notice Returns total token supply */ function totalSupply() external view returns (uint256); /** * @notice Transfer `amount` tokens from `msg.sender` to `dst` * @param dst The address of the destination account * @param amount The number of tokens to transfer * @return Whether or not the transfer succeeded */ function transfer(address dst, uint256 amount) external returns (bool); /** * @notice Transfer `amount` tokens from `src` to `dst` * @param src The address of the source account * @param dst The address of the destination account * @param amount The number of tokens to transfer * @return Whether or not the transfer succeeded */ function transferFrom( address src, address dst, uint256 amount ) external returns (bool); /** * @notice Approve `spender` to transfer up to `amount` from `src` * @dev This will overwrite the approval amount for `spender` * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve) * @param spender The address of the account which may transfer tokens * @param amount The number of tokens that are approved (-1 means infinite) * @return Whether or not the approval succeeded */ function approve(address spender, uint256 amount) external returns (bool); /** * @notice Get the current allowance from `owner` for `spender` * @param owner The address of the account which owns the tokens to be spent * @param spender The address of the account which may transfer tokens * @return The number of tokens allowed to be spent (-1 means infinite) */ function allowance(address owner, address spender) external view returns (uint256); /** * @notice Get the token balance of the `owner` * @param owner The address of the account to query * @return The number of tokens owned by `owner` */ function balanceOf(address owner) external view returns (uint256); /** * @notice Get the underlying balance of the `owner` * @dev This also accrues interest in a transaction * @param owner The address of the account to query * @return The amount of underlying owned by `owner` */ function balanceOfUnderlying(address owner) external returns (uint256); /** * @notice Get a snapshot of the account's balances, and the cached exchange rate * @dev This is used by supervisor to more efficiently perform liquidity checks. * @param account Address of the account to snapshot * @return (token balance, borrow balance, exchange rate mantissa) */ function getAccountSnapshot(address account) external view returns ( uint256, uint256, uint256 ); /** * @notice Returns the current per-block borrow interest rate for this mToken * @return The borrow interest rate per block, scaled by 1e18 */ function borrowRatePerBlock() external view returns (uint256); /** * @notice Returns the current per-block supply interest rate for this mToken * @return The supply interest rate per block, scaled by 1e18 */ function supplyRatePerBlock() external view returns (uint256); /** * @notice Returns the current total borrows plus accrued interest * @return The total borrows with interest */ function totalBorrowsCurrent() external returns (uint256); /** * @notice Accrue interest to updated borrowIndex and then calculate account's * borrow balance using the updated borrowIndex * @param account The address whose balance should be calculated after updating borrowIndex * @return The calculated balance */ function borrowBalanceCurrent(address account) external returns (uint256); /** * @notice Return the borrow balance of account based on stored data * @param account The address whose balance should be calculated * @return The calculated balance */ function borrowBalanceStored(address account) external view returns (uint256); /** * @notice Accrue interest then return the up-to-date exchange rate * @return Calculated exchange rate scaled by 1e18 */ function exchangeRateCurrent() external returns (uint256); /** * @notice Calculates the exchange rate from the underlying to the MToken * @dev This function does not accrue interest before calculating the exchange rate * @return Calculated exchange rate scaled by 1e18 */ function exchangeRateStored() external view returns (uint256); /** * @notice Get cash balance of this mToken in the underlying asset * @return The quantity of underlying asset owned by this contract */ function getCash() external view returns (uint256); /** * @notice Applies accrued interest to total borrows and protocol interest * @dev This calculates interest accrued from the last checkpointed block * up to the current block and writes new checkpoint to storage. */ function accrueInterest() external; /** * @notice Sender supplies assets into the market and receives mTokens in exchange * @dev Accrues interest whether or not the operation succeeds, unless reverted * @param lendAmount The amount of the underlying asset to supply */ function lend(uint256 lendAmount) external; /** * @notice Sender redeems mTokens in exchange for the underlying asset * @dev Accrues interest whether or not the operation succeeds, unless reverted * @param redeemTokens The number of mTokens to redeem into underlying */ function redeem(uint256 redeemTokens) external; /** * @notice Redeems all mTokens for account in exchange for the underlying asset. * Can only be called within the AML system! * @dev Accrues interest whether or not the operation succeeds, unless reverted * @param account An account that is potentially sanctioned by the AML system */ function redeemByAmlDecision(address account) external; /** * @notice Sender redeems mTokens in exchange for a specified amount of underlying asset * @dev Accrues interest whether or not the operation succeeds, unless reverted * @param redeemAmount The amount of underlying to receive from redeeming mTokens */ function redeemUnderlying(uint256 redeemAmount) external; /** * @notice Sender borrows assets from the protocol to their own address * @param borrowAmount The amount of the underlying asset to borrow */ function borrow(uint256 borrowAmount) external; /** * @notice Sender repays their own borrow * @param repayAmount The amount to repay */ function repayBorrow(uint256 repayAmount) external; /** * @notice Sender repays a borrow belonging to borrower * @param borrower the account with the debt being payed off * @param repayAmount The amount to repay */ function repayBorrowBehalf(address borrower, uint256 repayAmount) external; /** * @notice Liquidator repays a borrow belonging to borrower * @param borrower_ the account with the debt being payed off * @param repayAmount_ the amount of underlying tokens being returned */ function autoLiquidationRepayBorrow(address borrower_, uint256 repayAmount_) external; /** * @notice A public function to sweep accidental ERC-20 transfers to this contract. * Tokens are sent to admin (timelock) * @param token The address of the ERC-20 token to sweep * @dev RESTRICTION: Admin only. */ function sweepToken(IERC20 token, address admin_) external; /** * @notice Burns collateral tokens at the borrower's address, transfer underlying assets to the Liquidator address. * @dev Called only during an auto liquidation process, msg.sender must be the Liquidation contract. * @param borrower_ The account having collateral seized * @param seizeUnderlyingAmount_ The number of underlying assets to seize. The caller must ensure that the parameter is greater than zero. * @param isLoanInsignificant_ Marker for insignificant loan whose collateral must be credited to the protocolInterest * @param receiver_ Address that receives accounts collateral */ function autoLiquidationSeize( address borrower_, uint256 seizeUnderlyingAmount_, bool isLoanInsignificant_, address receiver_ ) external; /** * @notice The amount of currency available to be lent. * @param token The loan currency. * @return The amount of `token` that can be borrowed. */ function maxFlashLoan(address token) external view returns (uint256); /** * @notice The fee to be charged for a given loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @return The amount of `token` to be charged for the loan, on top of the returned principal. */ function flashFee(address token, uint256 amount) external view returns (uint256); /** * @notice Initiate a flash loan. * @param receiver The receiver of the tokens in the loan, and the receiver of the callback. * @param token The loan currency. * @param amount The amount of tokens lent. * @param data Arbitrary data structure, intended to contain user-defined parameters. */ function flashLoan( IERC3156FlashBorrower receiver, address token, uint256 amount, bytes calldata data ) external returns (bool); /** * @notice accrues interest and sets a new protocol interest factor for the protocol * @dev Admin function to accrue interest and set a new protocol interest factor * @dev RESTRICTION: Timelock only. */ function setProtocolInterestFactor(uint256 newProtocolInterestFactorMantissa) external; /** * @notice Accrues interest and increase protocol interest by transferring from msg.sender * @param addAmount_ Amount of addition to protocol interest */ function addProtocolInterest(uint256 addAmount_) external; /** * @notice Can only be called by liquidation contract. Increase protocol interest by transferring from payer. * @dev Calling code should make sure that accrueInterest() was called before. * @param payer_ The address from which the protocol interest will be transferred * @param addAmount_ Amount of addition to protocol interest */ function addProtocolInterestBehalf(address payer_, uint256 addAmount_) external; /** * @notice Accrues interest and reduces protocol interest by transferring to admin * @param reduceAmount Amount of reduction to protocol interest * @dev RESTRICTION: Admin only. */ function reduceProtocolInterest(uint256 reduceAmount, address admin_) external; /** * @notice accrues interest and updates the interest rate model using setInterestRateModelFresh * @dev Admin function to accrue interest and update the interest rate model * @param newInterestRateModel the new interest rate model to use * @dev RESTRICTION: Timelock only. */ function setInterestRateModel(IInterestRateModel newInterestRateModel) external; /** * @notice Updates share of markets cash that can be used as maximum amount of flash loan. * @param newMax New max amount share * @dev RESTRICTION: Timelock only. */ function setFlashLoanMaxShare(uint256 newMax) external; /** * @notice Updates fee of flash loan. * @param newFee New fee share of flash loan * @dev RESTRICTION: Timelock only. */ function setFlashLoanFeeShare(uint256 newFee) external; }
contracts/interfaces/IRewardsHubLight.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; import "./IMToken.sol"; import "./ILinkageLeaf.sol"; interface IRewardsHubLight is ILinkageLeaf { event DistributedSupplierMnt(IMToken mToken, address supplier, uint256 mntDelta, uint256 mntSupplyIndex); event DistributedBorrowerMnt(IMToken mToken, address borrower, uint256 mntDelta, uint256 mntBorrowIndex); event EmissionRewardAccrued(address account, uint256 amount); event RepresentativeRewardAccrued(address account, address provider, uint256 amount); event BuybackRewardAccrued(address account, uint256 amount); event Withdraw(address account, uint256 amount); event MntGranted(address recipient, uint256 amount); event MntSupplyEmissionRateUpdated(IMToken mToken, uint256 newSupplyEmissionRate); event MntBorrowEmissionRateUpdated(IMToken mToken, uint256 newBorrowEmissionRate); /** * @notice get keccak-256 hash of gatekeeper */ function GATEKEEPER() external view returns (bytes32); /** * @notice get keccak-256 hash of timelock */ function TIMELOCK() external view returns (bytes32); /** * @notice Gets the rate at which MNT is distributed to the corresponding supply market (per block) */ function mntSupplyEmissionRate(IMToken) external view returns (uint256); /** * @notice Gets the rate at which MNT is distributed to the corresponding borrow market (per block) */ function mntBorrowEmissionRate(IMToken) external view returns (uint256); /** * @notice Gets the MNT market supply state for each market */ function mntSupplyState(IMToken) external view returns (uint224 index, uint32 blockN); /** * @notice Gets the MNT market borrow state for each market */ function mntBorrowState(IMToken) external view returns (uint224 index, uint32 blockN); /** * @notice Gets the MNT supply index and block number for each market */ function mntSupplierState(IMToken, address) external view returns (uint224 index, uint32 blockN); /** * @notice Gets the MNT borrow index and block number for each market */ function mntBorrowerState(IMToken, address) external view returns (uint224 index, uint32 blockN); /** * @notice Gets amount of available balance of an account. */ function totalBalanceOf(address account) external view returns (uint256); /** * @notice Gets amount of MNT that can be withdrawn from an account at this block. */ function availableBalanceOf(address account) external view returns (uint256); /** * @notice Initializes market in RewardsHub. Should be called once from Supervisor.supportMarket * @dev RESTRICTION: Supervisor only */ function initMarket(IMToken mToken) external; /** * @notice Accrues MNT to the market by updating the borrow and supply indexes * @dev This method doesn't update MNT index history in Minterest NFT. * @param market The market whose supply and borrow index to update * @return (MNT supply index, MNT borrow index) */ function updateAndGetMntIndexes(IMToken market) external returns (uint224, uint224); /** * @notice Shorthand function to distribute MNT emissions from supplies of one market. */ function distributeSupplierMnt(IMToken mToken, address account) external; /** * @notice Shorthand function to distribute MNT emissions from borrows of one market. */ function distributeBorrowerMnt(IMToken mToken, address account) external; /** * @notice Updates market indexes and distributes tokens (if any) for holder * @dev Updates indexes and distributes only for those markets where the holder have a * non-zero supply or borrow balance. * @param account The address to distribute MNT for */ function distributeAllMnt(address account) external; /** * @notice Distribute all MNT accrued by the accounts * @param accounts The addresses to distribute MNT for * @param mTokens The list of markets to distribute MNT in * @param borrowers Whether or not to distribute MNT earned by borrowing * @param suppliers Whether or not to distribute MNT earned by supplying */ function distributeMnt( address[] memory accounts, IMToken[] memory mTokens, bool borrowers, bool suppliers ) external; /** * @notice Accrues buyback reward * @dev RESTRICTION: Buyback only */ function accrueBuybackReward(address account, uint256 amount) external; /** * @notice Transfers available part of MNT rewards to the sender. * This will decrease accounts buyback and voting weights. */ function withdraw(uint256 amount) external; /** * @notice Transfers * @dev RESTRICTION: Admin only */ function grant(address recipient, uint256 amount) external; /** * @notice Set MNT borrow and supply emission rates for a single market * @param mToken The market whose MNT emission rate to update * @param newMntSupplyEmissionRate New supply MNT emission rate for market * @param newMntBorrowEmissionRate New borrow MNT emission rate for market * @dev RESTRICTION Timelock only */ function setMntEmissionRates( IMToken mToken, uint256 newMntSupplyEmissionRate, uint256 newMntBorrowEmissionRate ) external; }
contracts/libraries/ErrorCodes.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; library ErrorCodes { // Common string internal constant ADMIN_ONLY = "E101"; string internal constant UNAUTHORIZED = "E102"; string internal constant OPERATION_PAUSED = "E103"; string internal constant WHITELISTED_ONLY = "E104"; string internal constant ADDRESS_IS_NOT_IN_AML_SYSTEM = "E105"; string internal constant ADDRESS_IS_BLACKLISTED = "E106"; // Invalid input string internal constant ADMIN_ADDRESS_CANNOT_BE_ZERO = "E201"; string internal constant INVALID_REDEEM = "E202"; string internal constant REDEEM_TOO_MUCH = "E203"; string internal constant MARKET_NOT_LISTED = "E204"; string internal constant INSUFFICIENT_LIQUIDITY = "E205"; string internal constant INVALID_SENDER = "E206"; string internal constant BORROW_CAP_REACHED = "E207"; string internal constant BALANCE_OWED = "E208"; string internal constant UNRELIABLE_LIQUIDATOR = "E209"; string internal constant INVALID_DESTINATION = "E210"; string internal constant INSUFFICIENT_STAKE = "E211"; string internal constant INVALID_DURATION = "E212"; string internal constant INVALID_PERIOD_RATE = "E213"; string internal constant EB_TIER_LIMIT_REACHED = "E214"; string internal constant LQ_INCORRECT_REPAY_AMOUNT = "E215"; string internal constant LQ_INSUFFICIENT_SEIZE_AMOUNT = "E216"; string internal constant EB_TIER_DOES_NOT_EXIST = "E217"; string internal constant EB_ZERO_TIER_CANNOT_BE_ENABLED = "E218"; string internal constant EB_ALREADY_ACTIVATED_TIER = "E219"; string internal constant EB_END_BLOCK_MUST_BE_LARGER_THAN_CURRENT = "E220"; string internal constant EB_CANNOT_MINT_TOKEN_FOR_ACTIVATED_TIER = "E221"; string internal constant EB_EMISSION_BOOST_IS_NOT_IN_RANGE = "E222"; string internal constant TARGET_ADDRESS_CANNOT_BE_ZERO = "E223"; string internal constant INSUFFICIENT_TOKEN_IN_VESTING_CONTRACT = "E224"; string internal constant VESTING_SCHEDULE_ALREADY_EXISTS = "E225"; string internal constant INSUFFICIENT_TOKENS_TO_CREATE_SCHEDULE = "E226"; string internal constant NO_VESTING_SCHEDULE = "E227"; string internal constant MNT_AMOUNT_IS_ZERO = "E230"; string internal constant INCORRECT_AMOUNT = "E231"; string internal constant MEMBERSHIP_LIMIT = "E232"; string internal constant MEMBER_NOT_EXIST = "E233"; string internal constant MEMBER_ALREADY_ADDED = "E234"; string internal constant MEMBERSHIP_LIMIT_REACHED = "E235"; string internal constant REPORTED_PRICE_SHOULD_BE_GREATER_THAN_ZERO = "E236"; string internal constant MTOKEN_ADDRESS_CANNOT_BE_ZERO = "E237"; string internal constant TOKEN_ADDRESS_CANNOT_BE_ZERO = "E238"; string internal constant REDEEM_TOKENS_OR_REDEEM_AMOUNT_MUST_BE_ZERO = "E239"; string internal constant FL_TOKEN_IS_NOT_UNDERLYING = "E240"; string internal constant FL_AMOUNT_IS_TOO_LARGE = "E241"; string internal constant FL_CALLBACK_FAILED = "E242"; string internal constant EB_MARKET_INDEX_IS_LESS_THAN_USER_INDEX = "E254"; string internal constant LQ_UNSUPPORTED_FULL_REPAY = "E255"; string internal constant LQ_UNSUPPORTED_FULL_SEIZE = "E256"; string internal constant LQ_UNSUPPORTED_MARKET_RECEIVED = "E257"; string internal constant LQ_UNSUCCESSFUL_CALLBACK = "E258"; string internal constant FL_UNAUTHORIZED_CALLBACK = "E270"; string internal constant FL_INCORRECT_TOKEN_OUT_DEVIATION = "E271"; string internal constant FL_SWAP_CALL_FAILS = "E272"; string internal constant FL_INVALID_AMOUNT_TOKEN_IN_SPENT = "E273"; string internal constant FL_INVALID_AMOUNT_TOKEN_OUT_RECEIVED = "E274"; string internal constant FL_EXACT_IN_INCORRECT_ALLOWANCE_AFTER = "E275"; string internal constant FL_RECEIVER_NOT_FOUND = "E276"; // Protocol errors string internal constant INVALID_PRICE = "E301"; string internal constant MARKET_NOT_FRESH = "E302"; string internal constant BORROW_RATE_TOO_HIGH = "E303"; string internal constant INSUFFICIENT_TOKEN_CASH = "E304"; string internal constant INSUFFICIENT_TOKENS_FOR_RELEASE = "E305"; string internal constant INSUFFICIENT_MNT_FOR_GRANT = "E306"; string internal constant TOKEN_TRANSFER_IN_UNDERFLOW = "E307"; string internal constant NOT_PARTICIPATING_IN_BUYBACK = "E308"; string internal constant NOT_ENOUGH_PARTICIPATING_ACCOUNTS = "E309"; string internal constant NOTHING_TO_DISTRIBUTE = "E310"; string internal constant ALREADY_PARTICIPATING_IN_BUYBACK = "E311"; string internal constant MNT_APPROVE_FAILS = "E312"; string internal constant TOO_EARLY_TO_DRIP = "E313"; string internal constant BB_UNSTAKE_TOO_EARLY = "E314"; string internal constant INSUFFICIENT_SHORTFALL = "E315"; string internal constant HEALTHY_FACTOR_NOT_IN_RANGE = "E316"; string internal constant BUYBACK_DRIPS_ALREADY_HAPPENED = "E317"; string internal constant EB_INDEX_SHOULD_BE_GREATER_THAN_INITIAL = "E318"; string internal constant NO_VESTING_SCHEDULES = "E319"; string internal constant INSUFFICIENT_UNRELEASED_TOKENS = "E320"; string internal constant ORACLE_PRICE_EXPIRED = "E321"; string internal constant TOKEN_NOT_FOUND = "E322"; string internal constant RECEIVED_PRICE_HAS_INVALID_ROUND = "E323"; string internal constant FL_PULL_AMOUNT_IS_TOO_LOW = "E324"; string internal constant INSUFFICIENT_TOTAL_PROTOCOL_INTEREST = "E325"; string internal constant BB_ACCOUNT_RECENTLY_VOTED = "E326"; string internal constant PRICE_FEED_ID_NOT_FOUND = "E327"; string internal constant INCORRECT_PRICE_MULTIPLIER = "E328"; string internal constant LL_NEW_ROOT_CANNOT_BE_ZERO = "E329"; string internal constant RH_PAYOUT_FROM_FUTURE = "E330"; string internal constant RH_ACCRUE_WITHOUT_UNLOCK = "E331"; string internal constant RH_LERP_DELTA_IS_GREATER_THAN_PERIOD = "E332"; string internal constant PRICE_FEED_ADDRESS_NOT_FOUND = "E333"; // Invalid input - Admin functions string internal constant ZERO_EXCHANGE_RATE = "E401"; string internal constant SECOND_INITIALIZATION = "E402"; string internal constant MARKET_ALREADY_LISTED = "E403"; string internal constant IDENTICAL_VALUE = "E404"; string internal constant ZERO_ADDRESS = "E405"; string internal constant EC_INVALID_PROVIDER_REPRESENTATIVE = "E406"; string internal constant EC_PROVIDER_CANT_BE_REPRESENTATIVE = "E407"; string internal constant OR_ORACLE_ADDRESS_CANNOT_BE_ZERO = "E408"; string internal constant OR_UNDERLYING_TOKENS_DECIMALS_SHOULD_BE_GREATER_THAN_ZERO = "E409"; string internal constant OR_REPORTER_MULTIPLIER_SHOULD_BE_GREATER_THAN_ZERO = "E410"; string internal constant INVALID_TOKEN = "E411"; string internal constant INVALID_PROTOCOL_INTEREST_FACTOR_MANTISSA = "E412"; string internal constant INVALID_REDUCE_AMOUNT = "E413"; string internal constant LIQUIDATION_FEE_MANTISSA_SHOULD_BE_GREATER_THAN_ZERO = "E414"; string internal constant INVALID_UTILISATION_FACTOR_MANTISSA = "E415"; string internal constant INVALID_MTOKENS_OR_BORROW_CAPS = "E416"; string internal constant FL_PARAM_IS_TOO_LARGE = "E417"; string internal constant MNT_INVALID_NONVOTING_PERIOD = "E418"; string internal constant INPUT_ARRAY_LENGTHS_ARE_NOT_EQUAL = "E419"; string internal constant EC_INVALID_BOOSTS = "E420"; string internal constant EC_ACCOUNT_IS_ALREADY_LIQUIDITY_PROVIDER = "E421"; string internal constant EC_ACCOUNT_HAS_NO_AGREEMENT = "E422"; string internal constant OR_TIMESTAMP_THRESHOLD_SHOULD_BE_GREATER_THAN_ZERO = "E423"; string internal constant OR_UNDERLYING_TOKENS_DECIMALS_TOO_BIG = "E424"; string internal constant OR_REPORTER_MULTIPLIER_TOO_BIG = "E425"; string internal constant SHOULD_HAVE_REVOCABLE_SCHEDULE = "E426"; string internal constant MEMBER_NOT_IN_DELAY_LIST = "E427"; string internal constant DELAY_LIST_LIMIT = "E428"; string internal constant NUMBER_IS_NOT_IN_SCALE = "E429"; string internal constant BB_STRATUM_OF_FIRST_LOYALTY_GROUP_IS_NOT_ZERO = "E430"; string internal constant INPUT_ARRAY_IS_EMPTY = "E431"; string internal constant OR_INCORRECT_PRICE_FEED_ID = "E432"; string internal constant OR_PRICE_AGE_CAN_NOT_BE_ZERO = "E433"; string internal constant OR_INCORRECT_PRICE_FEED_ADDRESS = "E434"; string internal constant OR_INCORRECT_SECONDARY_PRICE_FEED_ADDRESS = "E435"; string internal constant RH_COOLDOWN_START_ALREADY_SET = "E436"; string internal constant RH_INCORRECT_COOLDOWN_START = "E437"; string internal constant RH_COOLDOWN_IS_FINISHED = "E438"; string internal constant RH_INCORRECT_NUMBER_OF_CHARGES = "E439"; string internal constant RH_INCORRECT_CHARGE_SHARE = "E440"; string internal constant RH_COOLDOWN_START_NOT_SET = "E441"; }
contracts/libraries/PauseControl.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; import "./ErrorCodes.sol"; abstract contract PauseControl { event OperationPaused(bytes32 op, address subject); event OperationUnpaused(bytes32 op, address subject); mapping(address => mapping(bytes32 => bool)) internal pausedOps; function validatePause(address subject) internal view virtual; function validateUnpause(address subject) internal view virtual; function isOperationPaused(bytes32 op, address subject) public view returns (bool) { return pausedOps[subject][op]; } function pauseOperation(bytes32 op, address subject) external virtual { validatePause(subject); require(!isOperationPaused(op, subject)); pausedOps[subject][op] = true; emit OperationPaused(op, subject); } function unpauseOperation(bytes32 op, address subject) external virtual { validateUnpause(subject); require(isOperationPaused(op, subject)); pausedOps[subject][op] = false; emit OperationUnpaused(op, subject); } modifier checkPausedSubject(bytes32 op, address subject) { require(!isOperationPaused(op, subject), ErrorCodes.OPERATION_PAUSED); _; } modifier checkPaused(bytes32 op) { require(!isOperationPaused(op, address(0)), ErrorCodes.OPERATION_PAUSED); _; } }
contracts/multichain/taiko/interfaces/IIncentiveEmissionHub.sol
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.17; import "../../../interfaces/IRewardsHubLight.sol"; interface IIncentiveEmissionHub { event RewardWithdraw(address account, uint256 amount); event RewardGranted(address recipient, uint256 amount); event RewardAssigned(address recipient, uint256 amount); event SupplyCoefficientUpdated(IMToken market, uint256 newSupplyCoefficient); event BorrowCoefficientUpdated(IMToken market, uint256 newBorrowCoefficient); event NewIncentiveToken(address newIncentiveToken); /** * @notice Gets the address of incentive token contract */ function token() external view returns (IERC20); /** * @notice Gets the address of rewardsHub contract */ function rewardsHub() external view returns (IRewardsHubLight); /** * @notice Gets the reward coefficient for exact market and supply operation */ function rewardSupplyCoefficient(IMToken market) external view returns (uint256); /** * @notice Gets the reward coefficient for exact market and borrow operation */ function rewardBorrowCoefficient(IMToken market) external view returns (uint256); /** * @notice Gets keccak-256 hash of gatekeeper */ function GATEKEEPER() external view returns (bytes32); /** * @notice Converts base rewards to incentive rewards using rewardCoefficient wrt market and operation type */ function calculateIncentiveRewards( IMToken market, uint256 accruedBaseReward, bool isSupply ) external view returns (uint256); /** * @notice Accumulates accrued rewards to user balance * @dev RESTRICTION: rewardsHub only */ function assignRewards(address account, uint256 rewardsAmount) external; /** * @notice Sets a new coefficient to convert supplier basic rewards from exact market * @dev RESTRICTION: Admin only */ function setRewardSupplyCoefficient(IMToken market, uint256 newSupplyCoefficient) external; /** * @notice Sets a new coefficient to convert borrower basic rewards from exact market * @dev RESTRICTION: Admin only */ function setRewardBorrowCoefficient(IMToken market, uint256 newBorrowCoefficient) external; /** * @notice Transfers available part of rewards to the sender. * This will decrease accounts buyback and voting weights. */ function withdraw(uint256 amount) external; /** * @notice Grants specific amount of tokens to the recipient address * @dev RESTRICTION: Admin only */ function grant(address recipient, uint256 amount) external; /** * @notice Sets incentive token address if it was set to zero during deployment * @dev RESTRICTION: Admin only */ function setIncentiveToken(IERC20 newIncentiveToken) external; }
Compiler Settings
{"outputSelection":{"*":{"*":["*"],"":["*"]}},"optimizer":{"runs":200,"enabled":true},"metadata":{"useLiteralContent":true},"libraries":{}}
Contract ABI
[{"type":"event","name":"BorrowCoefficientUpdated","inputs":[{"type":"address","name":"market","internalType":"contract IMToken","indexed":false},{"type":"uint256","name":"newBorrowCoefficient","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Initialized","inputs":[{"type":"uint8","name":"version","internalType":"uint8","indexed":false}],"anonymous":false},{"type":"event","name":"NewIncentiveToken","inputs":[{"type":"address","name":"newIncentiveToken","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"OperationPaused","inputs":[{"type":"bytes32","name":"op","internalType":"bytes32","indexed":false},{"type":"address","name":"subject","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"OperationUnpaused","inputs":[{"type":"bytes32","name":"op","internalType":"bytes32","indexed":false},{"type":"address","name":"subject","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"RewardAssigned","inputs":[{"type":"address","name":"recipient","internalType":"address","indexed":false},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"RewardGranted","inputs":[{"type":"address","name":"recipient","internalType":"address","indexed":false},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"RewardWithdraw","inputs":[{"type":"address","name":"account","internalType":"address","indexed":false},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"RoleAdminChanged","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32","indexed":true},{"type":"bytes32","name":"previousAdminRole","internalType":"bytes32","indexed":true},{"type":"bytes32","name":"newAdminRole","internalType":"bytes32","indexed":true}],"anonymous":false},{"type":"event","name":"RoleGranted","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32","indexed":true},{"type":"address","name":"account","internalType":"address","indexed":true},{"type":"address","name":"sender","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"RoleRevoked","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32","indexed":true},{"type":"address","name":"account","internalType":"address","indexed":true},{"type":"address","name":"sender","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"SupplyCoefficientUpdated","inputs":[{"type":"address","name":"market","internalType":"contract IMToken","indexed":false},{"type":"uint256","name":"newSupplyCoefficient","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"DEFAULT_ADMIN_ROLE","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"GATEKEEPER","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"assignRewards","inputs":[{"type":"address","name":"account","internalType":"address"},{"type":"uint256","name":"rewardsAmount","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balances","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"calculateIncentiveRewards","inputs":[{"type":"address","name":"market","internalType":"contract IMToken"},{"type":"uint256","name":"accruedBaseReward","internalType":"uint256"},{"type":"bool","name":"isSupply","internalType":"bool"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"getRoleAdmin","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"grant","inputs":[{"type":"address","name":"recipient","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"grantRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"hasRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"initialize","inputs":[{"type":"address","name":"admin_","internalType":"address"},{"type":"address","name":"_rewardsHub","internalType":"contract IRewardsHubLight"},{"type":"address","name":"_token","internalType":"contract IERC20"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isOperationPaused","inputs":[{"type":"bytes32","name":"op","internalType":"bytes32"},{"type":"address","name":"subject","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"pauseOperation","inputs":[{"type":"bytes32","name":"op","internalType":"bytes32"},{"type":"address","name":"subject","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"revokeRole","inputs":[{"type":"bytes32","name":"role","internalType":"bytes32"},{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"rewardBorrowCoefficient","inputs":[{"type":"address","name":"","internalType":"contract IMToken"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"rewardSupplyCoefficient","inputs":[{"type":"address","name":"","internalType":"contract IMToken"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IRewardsHubLight"}],"name":"rewardsHub","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setIncentiveToken","inputs":[{"type":"address","name":"newIncentiveToken","internalType":"contract IERC20"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setRewardBorrowCoefficient","inputs":[{"type":"address","name":"market","internalType":"contract IMToken"},{"type":"uint256","name":"newBorrowCoefficient","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setRewardSupplyCoefficient","inputs":[{"type":"address","name":"market","internalType":"contract IMToken"},{"type":"uint256","name":"newSupplyCoefficient","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"supportsInterface","inputs":[{"type":"bytes4","name":"interfaceId","internalType":"bytes4"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IERC20"}],"name":"token","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"unpauseOperation","inputs":[{"type":"bytes32","name":"op","internalType":"bytes32"},{"type":"address","name":"subject","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"withdraw","inputs":[{"type":"uint256","name":"amount","internalType":"uint256"}]}]
Contract Creation Code
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