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Contract Name:
XVS
Compiler Version
v0.8.25+commit.b61c2a91
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.25; import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import { TokenController } from "./TokenController.sol"; /** * @title XVS * @author Venus * @notice XVS contract serves as a customized ERC-20 token with additional minting and burning functionality. * It also incorporates access control features provided by the "TokenController" contract to ensure proper governance and restrictions on minting and burning operations. */ contract XVS is ERC20, TokenController { constructor(address accessControlManager_) ERC20("Venus XVS", "XVS") TokenController(accessControlManager_) {} /** * @notice Creates `amount_` tokens and assigns them to `account_`, increasing * the total supply. Checks access and eligibility. * @param account_ Address to which tokens are assigned. * @param amount_ Amount of tokens to be assigned. * @custom:access Controlled by AccessControlManager. * @custom:event Emits MintLimitDecreased with new available limit. * @custom:error MintLimitExceed is thrown when minting amount exceeds the maximum cap. */ function mint(address account_, uint256 amount_) external whenNotPaused { _ensureAllowed("mint(address,uint256)"); _isEligibleToMint(msg.sender, account_, amount_); _mint(account_, amount_); } /** * @notice Destroys `amount_` tokens from `account_`, reducing the * total supply. Checks access and eligibility. * @param account_ Address from which tokens be destroyed. * @param amount_ Amount of tokens to be destroyed. * @custom:access Controlled by AccessControlManager. * @custom:event Emits MintLimitIncreased with new available limit. */ function burn(address account_, uint256 amount_) external whenNotPaused { _ensureAllowed("burn(address,uint256)"); _burn(account_, amount_); _increaseMintLimit(msg.sender, amount_); } /** * @notice Hook that is called before any transfer of tokens. This includes * minting and burning. * @param from_ Address of account from which tokens are to be transferred. * @param to_ Address of the account to which tokens are to be transferred. * @param amount_ The amount of tokens to be transferred. * @custom:error AccountBlacklisted is thrown when either `from` or `to` address is blacklisted. */ function _beforeTokenTransfer(address from_, address to_, uint256 amount_) internal override whenNotPaused { if (_blacklist[to_]) { revert AccountBlacklisted(to_); } if (_blacklist[from_]) { revert AccountBlacklisted(from_); } } }
// 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; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { require(!paused(), "Pausable: paused"); } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { require(paused(), "Pausable: not paused"); } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the default value returned by this function, unless * it's overridden. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer(address from, address to, uint256 amount) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by // decrementing then incrementing. _balances[to] += amount; } emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; unchecked { // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above. _balances[account] += amount; } emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; // Overflow not possible: amount <= accountBalance <= totalSupply. _totalSupply -= amount; } emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance(address owner, address spender, uint256 amount) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// 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); }
// 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; } }
// SPDX-License-Identifier: BSD-3-Clause pragma solidity ^0.8.25; import "@openzeppelin/contracts/access/IAccessControl.sol"; /** * @title IAccessControlManagerV8 * @author Venus * @notice Interface implemented by the `AccessControlManagerV8` contract. */ interface IAccessControlManagerV8 is IAccessControl { function giveCallPermission(address contractAddress, string calldata functionSig, address accountToPermit) external; function revokeCallPermission( address contractAddress, string calldata functionSig, address accountToRevoke ) external; function isAllowedToCall(address account, string calldata functionSig) external view returns (bool); function hasPermission( address account, address contractAddress, string calldata functionSig ) external view returns (bool); }
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.25; /// @notice Thrown if the supplied address is a zero address where it is not allowed error ZeroAddressNotAllowed(); /// @notice Thrown if the supplied value is 0 where it is not allowed error ZeroValueNotAllowed(); /// @notice Checks if the provided address is nonzero, reverts otherwise /// @param address_ Address to check /// @custom:error ZeroAddressNotAllowed is thrown if the provided address is a zero address function ensureNonzeroAddress(address address_) pure { if (address_ == address(0)) { revert ZeroAddressNotAllowed(); } } /// @notice Checks if the provided value is nonzero, reverts otherwise /// @param value_ Value to check /// @custom:error ZeroValueNotAllowed is thrown if the provided value is 0 function ensureNonzeroValue(uint256 value_) pure { if (value_ == 0) { revert ZeroValueNotAllowed(); } }
// SPDX-License-Identifier: BSD-3-Clause pragma solidity 0.8.25; import { IAccessControlManagerV8 } from "@venusprotocol/governance-contracts/contracts/Governance/IAccessControlManagerV8.sol"; import { Pausable } from "@openzeppelin/contracts/security/Pausable.sol"; import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol"; import { ensureNonzeroAddress } from "@venusprotocol/solidity-utilities/contracts/validators.sol"; /** * @title TokenController * @author Venus * @notice TokenController contract acts as a governance and access control mechanism, * allowing the owner to manage minting restrictions and blacklist certain addresses to maintain control and security within the token ecosystem. * It provides a flexible framework for token-related operations. */ contract TokenController is Ownable, Pausable { /** * @notice Access control manager contract address. */ address public accessControlManager; /** * @notice A Mapping used to keep track of the blacklist status of addresses. */ mapping(address => bool) internal _blacklist; /** * @notice A mapping is used to keep track of the maximum amount a minter is permitted to mint. */ mapping(address => uint256) public minterToCap; /** * @notice A Mapping used to keep track of the amount i.e already minted by minter. */ mapping(address => uint256) public minterToMintedAmount; /** * @notice Emitted when the blacklist status of a user is updated. */ event BlacklistUpdated(address indexed user, bool value); /** * @notice Emitted when the minting limit for a minter is increased. */ event MintLimitIncreased(address indexed minter, uint256 newLimit); /** * @notice Emitted when the minting limit for a minter is decreased. */ event MintLimitDecreased(address indexed minter, uint256 newLimit); /** * @notice Emitted when the minting cap for a minter is changed. */ event MintCapChanged(address indexed minter, uint256 amount); /** * @notice Emitted when the address of the access control manager of the contract is updated. */ event NewAccessControlManager(address indexed oldAccessControlManager, address indexed newAccessControlManager); /** * @notice Emitted when all minted tokens are migrated from one minter to another. */ event MintedTokensMigrated(address indexed source, address indexed destination); /** * @notice This error is used to indicate that the minting limit has been exceeded. It is typically thrown when a minting operation would surpass the defined cap. */ error MintLimitExceed(); /** * @notice This error is used to indicate that `mint` `burn` and `transfer` actions are not allowed for the user address. */ error AccountBlacklisted(address user); /** * @notice This error is used to indicate that sender is not allowed to perform this action. */ error Unauthorized(); /** * @notice This error is used to indicate that the new cap is greater than the previously minted tokens for the minter. */ error NewCapNotGreaterThanMintedTokens(); /** * @notice This error is used to indicate that the addresses must be different. */ error AddressesMustDiffer(); /** * @notice This error is used to indicate that the minter did not mint the required amount of tokens. */ error MintedAmountExceed(); /** * @param accessControlManager_ Address of access control manager contract. * @custom:error ZeroAddressNotAllowed is thrown when accessControlManager contract address is zero. */ constructor(address accessControlManager_) { ensureNonzeroAddress(accessControlManager_); accessControlManager = accessControlManager_; } /** * @notice Pauses Token * @custom:access Controlled by AccessControlManager. */ function pause() external { _ensureAllowed("pause()"); _pause(); } /** * @notice Resumes Token * @custom:access Controlled by AccessControlManager. */ function unpause() external { _ensureAllowed("unpause()"); _unpause(); } /** * @notice Function to update blacklist. * @param user_ User address to be affected. * @param value_ Boolean to toggle value. * @custom:access Controlled by AccessControlManager. * @custom:event Emits BlacklistUpdated event. */ function updateBlacklist(address user_, bool value_) external { _ensureAllowed("updateBlacklist(address,bool)"); _blacklist[user_] = value_; emit BlacklistUpdated(user_, value_); } /** * @notice Sets the minting cap for minter. * @param minter_ Minter address. * @param amount_ Cap for the minter. * @custom:access Controlled by AccessControlManager. * @custom:event Emits MintCapChanged. */ function setMintCap(address minter_, uint256 amount_) external { _ensureAllowed("setMintCap(address,uint256)"); if (amount_ < minterToMintedAmount[minter_]) { revert NewCapNotGreaterThanMintedTokens(); } minterToCap[minter_] = amount_; emit MintCapChanged(minter_, amount_); } /** * @notice Sets the address of the access control manager of this contract. * @dev Admin function to set the access control address. * @param newAccessControlAddress_ New address for the access control. * @custom:access Only owner. * @custom:event Emits NewAccessControlManager. * @custom:error ZeroAddressNotAllowed is thrown when newAccessControlAddress_ contract address is zero. */ function setAccessControlManager(address newAccessControlAddress_) external onlyOwner { ensureNonzeroAddress(newAccessControlAddress_); emit NewAccessControlManager(accessControlManager, newAccessControlAddress_); accessControlManager = newAccessControlAddress_; } /** * @notice Migrates all minted tokens from one minter to another. This function is useful when we want to permanent take down a bridge. * @param source_ Minter address to migrate tokens from. * @param destination_ Minter address to migrate tokens to. * @custom:access Controlled by AccessControlManager. * @custom:error MintLimitExceed is thrown when the minting limit exceeds the cap after migration. * @custom:error AddressesMustDiffer is thrown when the source_ and destination_ addresses are the same. * @custom:event Emits MintLimitIncreased and MintLimitDecreased events for 'source' and 'destination'. * @custom:event Emits MintedTokensMigrated. */ function migrateMinterTokens(address source_, address destination_) external { _ensureAllowed("migrateMinterTokens(address,address)"); if (source_ == destination_) { revert AddressesMustDiffer(); } uint256 sourceCap = minterToCap[source_]; uint256 destinationCap = minterToCap[destination_]; uint256 sourceMinted = minterToMintedAmount[source_]; uint256 destinationMinted = minterToMintedAmount[destination_]; uint256 newDestinationMinted = destinationMinted + sourceMinted; if (newDestinationMinted > destinationCap) { revert MintLimitExceed(); } minterToMintedAmount[source_] = 0; minterToMintedAmount[destination_] = newDestinationMinted; uint256 availableLimit; unchecked { availableLimit = destinationCap - newDestinationMinted; } emit MintLimitDecreased(destination_, availableLimit); emit MintLimitIncreased(source_, sourceCap); emit MintedTokensMigrated(source_, destination_); } /** * @notice Returns the blacklist status of the address. * @param user_ Address of user to check blacklist status. * @return bool status of blacklist. */ function isBlackListed(address user_) external view returns (bool) { return _blacklist[user_]; } /** * @dev Checks the minter cap and eligibility of receiver to receive tokens. * @param from_ Minter address. * @param to_ Receiver address. * @param amount_ Amount to be mint. * @custom:error MintLimitExceed is thrown when minting limit exceeds the cap. * @custom:event Emits MintLimitDecreased with minter address and available limits. */ function _isEligibleToMint(address from_, address to_, uint256 amount_) internal { uint256 mintingCap = minterToCap[from_]; uint256 totalMintedOld = minterToMintedAmount[from_]; uint256 totalMintedNew = totalMintedOld + amount_; if (totalMintedNew > mintingCap) { revert MintLimitExceed(); } minterToMintedAmount[from_] = totalMintedNew; uint256 availableLimit; unchecked { availableLimit = mintingCap - totalMintedNew; } emit MintLimitDecreased(from_, availableLimit); } /** * @dev This is post hook of burn function, increases minting limit of the minter. * @param from_ Minter address. * @param amount_ Amount burned. * @custom:error MintedAmountExceed is thrown when `amount_` is greater than the tokens minted by `from_`. * @custom:event Emits MintLimitIncreased with minter address and availabe limit. */ function _increaseMintLimit(address from_, uint256 amount_) internal { uint256 totalMintedOld = minterToMintedAmount[from_]; if (totalMintedOld < amount_) { revert MintedAmountExceed(); } uint256 totalMintedNew; unchecked { totalMintedNew = totalMintedOld - amount_; } minterToMintedAmount[from_] = totalMintedNew; uint256 availableLimit = minterToCap[from_] - totalMintedNew; emit MintLimitIncreased(from_, availableLimit); } /** * @dev Checks the caller is allowed to call the specified fuction. * @param functionSig_ Function signatureon which access is to be checked. * @custom:error Unauthorized, thrown when unauthorised user try to access function. */ function _ensureAllowed(string memory functionSig_) internal view { if (!IAccessControlManagerV8(accessControlManager).isAllowedToCall(msg.sender, functionSig_)) { revert Unauthorized(); } } }
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000001652e12c8abe2f0d84466f0fc1fa4286491b3bc1
-----Decoded View---------------
Arg [0] : accessControlManager_ (address): 0x1652E12C8ABE2f0D84466F0fc1fA4286491B3BC1
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000001652e12c8abe2f0d84466f0fc1fa4286491b3bc1
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.