Feature Tip: Add private address tag to any address under My Name Tag !
ERC-721
Overview
Max Total Supply
120 dPass
Holders
120
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 dPassLoading...
Loading
Loading...
Loading
Loading...
Loading
# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
Passport
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; import {ERC721} from "../../lib/openzeppelin-contracts/contracts/token/ERC721/ERC721.sol"; import {AccessControl} from "../../lib/openzeppelin-contracts/contracts/access/AccessControl.sol"; import {EIP712} from "../../lib/openzeppelin-contracts/contracts/utils/cryptography/draft-EIP712.sol"; import {ERC721Votes} from "../../lib/openzeppelin-contracts/contracts/token/ERC721/extensions/draft-ERC721Votes.sol"; import {Counters} from "../../lib/openzeppelin-contracts/contracts/utils/Counters.sol"; contract Passport is ERC721, AccessControl, EIP712, ERC721Votes { using Counters for Counters.Counter; error Disabled(); bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); bytes32 public constant TRANSFERER_ROLE = keccak256("TRANSFERER_ROLE"); Counters.Counter private _tokenIdCounter; string private baseURI; constructor(address owner, string memory name_, string memory symbol_, string memory baseURI_) ERC721(name_, symbol_) EIP712(name_, "1") { _grantRole(DEFAULT_ADMIN_ROLE, owner); _grantRole(MINTER_ROLE, owner); _grantRole(TRANSFERER_ROLE, owner); baseURI = baseURI_; } function _baseURI() internal view override returns (string memory) { return baseURI; } function updateBaseURI(string memory newBaseURI) external onlyRole(DEFAULT_ADMIN_ROLE) { baseURI = newBaseURI; } function totalSupply() public view returns (uint256) { return _tokenIdCounter.current(); } function safeMint(address to) external onlyRole(MINTER_ROLE) { uint256 tokenId = _tokenIdCounter.current(); _tokenIdCounter.increment(); _safeMint(to, tokenId); } // Configure the approval functionality to return expected values function approve( address, /* to */ uint256 /* tokenId */ ) public pure override { revert Disabled(); } function setApprovalForAll( address, /* operator */ bool /* approved */ ) public pure override { revert Disabled(); } function getApproved(uint256 tokenId) public view override returns (address) { _requireMinted(tokenId); return address(0); } // Make sure the token is only transferable by the TRANSFERRER_ROLE function isApprovedForAll( address, /* owner */ address operator /* operator */ ) public view override returns (bool) { return hasRole(TRANSFERER_ROLE, operator); } function _isApprovedOrOwner(address spender, uint256 tokenId) internal view override returns (bool) { _requireMinted(tokenId); return isApprovedForAll(address(0), spender); } // To make sensible error messages function transferFrom(address from, address to, uint256 tokenId) public override onlyRole(TRANSFERER_ROLE) { _transfer(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public override onlyRole(TRANSFERER_ROLE) { _safeTransfer(from, to, tokenId, data); } // The following functions are overrides required by Solidity. function _afterTokenTransfer(address from, address to, uint256 tokenId, uint256 batchSize) internal override (ERC721, ERC721Votes) { super._afterTokenTransfer(from, to, tokenId, batchSize); } function supportsInterface(bytes4 interfaceId) public view override (ERC721, AccessControl) returns (bool) { return super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (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: * * ``` * 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}: * * ``` * 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. */ 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()); } } }
// 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 v4.5.0) (governance/utils/IVotes.sol) pragma solidity ^0.8.0; /** * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts. * * _Available since v4.5._ */ interface IVotes { /** * @dev Emitted when an account changes their delegate. */ event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); /** * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of votes. */ event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance); /** * @dev Returns the current amount of votes that `account` has. */ function getVotes(address account) external view returns (uint256); /** * @dev Returns the amount of votes that `account` had at the end of a past block (`blockNumber`). */ function getPastVotes(address account, uint256 blockNumber) external view returns (uint256); /** * @dev Returns the total supply of votes available at the end of a past block (`blockNumber`). * * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes. * Votes that have not been delegated are still part of total supply, even though they would not participate in a * vote. */ function getPastTotalSupply(uint256 blockNumber) external view returns (uint256); /** * @dev Returns the delegate that `account` has chosen. */ function delegates(address account) external view returns (address); /** * @dev Delegates votes from the sender to `delegatee`. */ function delegate(address delegatee) external; /** * @dev Delegates votes from signer to `delegatee`. */ function delegateBySig( address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (governance/utils/Votes.sol) pragma solidity ^0.8.0; import "../../utils/Context.sol"; import "../../utils/Counters.sol"; import "../../utils/Checkpoints.sol"; import "../../utils/cryptography/EIP712.sol"; import "./IVotes.sol"; /** * @dev This is a base abstract contract that tracks voting units, which are a measure of voting power that can be * transferred, and provides a system of vote delegation, where an account can delegate its voting units to a sort of * "representative" that will pool delegated voting units from different accounts and can then use it to vote in * decisions. In fact, voting units _must_ be delegated in order to count as actual votes, and an account has to * delegate those votes to itself if it wishes to participate in decisions and does not have a trusted representative. * * This contract is often combined with a token contract such that voting units correspond to token units. For an * example, see {ERC721Votes}. * * The full history of delegate votes is tracked on-chain so that governance protocols can consider votes as distributed * at a particular block number to protect against flash loans and double voting. The opt-in delegate system makes the * cost of this history tracking optional. * * When using this module the derived contract must implement {_getVotingUnits} (for example, make it return * {ERC721-balanceOf}), and can use {_transferVotingUnits} to track a change in the distribution of those units (in the * previous example, it would be included in {ERC721-_beforeTokenTransfer}). * * _Available since v4.5._ */ abstract contract Votes is IVotes, Context, EIP712 { using Checkpoints for Checkpoints.History; using Counters for Counters.Counter; bytes32 private constant _DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); mapping(address => address) private _delegation; mapping(address => Checkpoints.History) private _delegateCheckpoints; Checkpoints.History private _totalCheckpoints; mapping(address => Counters.Counter) private _nonces; /** * @dev Returns the current amount of votes that `account` has. */ function getVotes(address account) public view virtual override returns (uint256) { return _delegateCheckpoints[account].latest(); } /** * @dev Returns the amount of votes that `account` had at the end of a past block (`blockNumber`). * * Requirements: * * - `blockNumber` must have been already mined */ function getPastVotes(address account, uint256 blockNumber) public view virtual override returns (uint256) { return _delegateCheckpoints[account].getAtProbablyRecentBlock(blockNumber); } /** * @dev Returns the total supply of votes available at the end of a past block (`blockNumber`). * * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes. * Votes that have not been delegated are still part of total supply, even though they would not participate in a * vote. * * Requirements: * * - `blockNumber` must have been already mined */ function getPastTotalSupply(uint256 blockNumber) public view virtual override returns (uint256) { require(blockNumber < block.number, "Votes: block not yet mined"); return _totalCheckpoints.getAtProbablyRecentBlock(blockNumber); } /** * @dev Returns the current total supply of votes. */ function _getTotalSupply() internal view virtual returns (uint256) { return _totalCheckpoints.latest(); } /** * @dev Returns the delegate that `account` has chosen. */ function delegates(address account) public view virtual override returns (address) { return _delegation[account]; } /** * @dev Delegates votes from the sender to `delegatee`. */ function delegate(address delegatee) public virtual override { address account = _msgSender(); _delegate(account, delegatee); } /** * @dev Delegates votes from signer to `delegatee`. */ function delegateBySig( address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s ) public virtual override { require(block.timestamp <= expiry, "Votes: signature expired"); address signer = ECDSA.recover( _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))), v, r, s ); require(nonce == _useNonce(signer), "Votes: invalid nonce"); _delegate(signer, delegatee); } /** * @dev Delegate all of `account`'s voting units to `delegatee`. * * Emits events {IVotes-DelegateChanged} and {IVotes-DelegateVotesChanged}. */ function _delegate(address account, address delegatee) internal virtual { address oldDelegate = delegates(account); _delegation[account] = delegatee; emit DelegateChanged(account, oldDelegate, delegatee); _moveDelegateVotes(oldDelegate, delegatee, _getVotingUnits(account)); } /** * @dev Transfers, mints, or burns voting units. To register a mint, `from` should be zero. To register a burn, `to` * should be zero. Total supply of voting units will be adjusted with mints and burns. */ function _transferVotingUnits( address from, address to, uint256 amount ) internal virtual { if (from == address(0)) { _totalCheckpoints.push(_add, amount); } if (to == address(0)) { _totalCheckpoints.push(_subtract, amount); } _moveDelegateVotes(delegates(from), delegates(to), amount); } /** * @dev Moves delegated votes from one delegate to another. */ function _moveDelegateVotes( address from, address to, uint256 amount ) private { if (from != to && amount > 0) { if (from != address(0)) { (uint256 oldValue, uint256 newValue) = _delegateCheckpoints[from].push(_subtract, amount); emit DelegateVotesChanged(from, oldValue, newValue); } if (to != address(0)) { (uint256 oldValue, uint256 newValue) = _delegateCheckpoints[to].push(_add, amount); emit DelegateVotesChanged(to, oldValue, newValue); } } } function _add(uint256 a, uint256 b) private pure returns (uint256) { return a + b; } function _subtract(uint256 a, uint256 b) private pure returns (uint256) { return a - b; } /** * @dev Consumes a nonce. * * Returns the current value and increments nonce. */ function _useNonce(address owner) internal virtual returns (uint256 current) { Counters.Counter storage nonce = _nonces[owner]; current = nonce.current(); nonce.increment(); } /** * @dev Returns an address nonce. */ function nonces(address owner) public view virtual returns (uint256) { return _nonces[owner].current(); } /** * @dev Returns the contract's {EIP712} domain separator. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32) { return _domainSeparatorV4(); } /** * @dev Must return the voting units held by an account. */ function _getVotingUnits(address) internal view virtual returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _ownerOf(tokenId); require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner or approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); _safeTransfer(from, to, tokenId, data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _ownerOf(tokenId) != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId, 1); // Check that tokenId was not minted by `_beforeTokenTransfer` hook require(!_exists(tokenId), "ERC721: token already minted"); unchecked { // Will not overflow unless all 2**256 token ids are minted to the same owner. // Given that tokens are minted one by one, it is impossible in practice that // this ever happens. Might change if we allow batch minting. // The ERC fails to describe this case. _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId, 1); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * This is an internal function that does not check if the sender is authorized to operate on the token. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId, 1); // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook owner = ERC721.ownerOf(tokenId); // Clear approvals delete _tokenApprovals[tokenId]; unchecked { // Cannot overflow, as that would require more tokens to be burned/transferred // out than the owner initially received through minting and transferring in. _balances[owner] -= 1; } delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId, 1); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId, 1); // Check that tokenId was not transferred by `_beforeTokenTransfer` hook require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); // Clear approvals from the previous owner delete _tokenApprovals[tokenId]; unchecked { // `_balances[from]` cannot overflow for the same reason as described in `_burn`: // `from`'s balance is the number of token held, which is at least one before the current // transfer. // `_balances[to]` could overflow in the conditions described in `_mint`. That would require // all 2**256 token ids to be minted, which in practice is impossible. _balances[from] -= 1; _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId, 1); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`. * - When `from` is zero, the tokens will be minted for `to`. * - When `to` is zero, ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256, /* firstTokenId */ uint256 batchSize ) internal virtual { if (batchSize > 1) { if (from != address(0)) { _balances[from] -= batchSize; } if (to != address(0)) { _balances[to] += batchSize; } } } /** * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`. * - When `from` is zero, the tokens were minted for `to`. * - When `to` is zero, ``from``'s tokens were burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Votes.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "../../../governance/utils/Votes.sol"; /** * @dev Extension of ERC721 to support voting and delegation as implemented by {Votes}, where each individual NFT counts * as 1 vote unit. * * Tokens do not count as votes until they are delegated, because votes must be tracked which incurs an additional cost * on every transfer. Token holders can either delegate to a trusted representative who will decide how to make use of * the votes in governance decisions, or they can delegate to themselves to be their own representative. * * _Available since v4.5._ */ abstract contract ERC721Votes is ERC721, Votes { /** * @dev See {ERC721-_afterTokenTransfer}. Adjusts votes when tokens are transferred. * * Emits a {IVotes-DelegateVotesChanged} event. */ function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual override { _transferVotingUnits(from, to, batchSize); super._afterTokenTransfer(from, to, firstTokenId, batchSize); } /** * @dev Returns the balance of `account`. */ function _getVotingUnits(address account) internal view virtual override returns (uint256) { return balanceOf(account); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/draft-ERC721Votes.sol) pragma solidity ^0.8.0; // ERC721Votes was marked as draft due to the EIP-712 dependency. // EIP-712 is Final as of 2022-08-11. This file is deprecated. import "./ERC721Votes.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (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 * ==== * * [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://diligence.consensys.net/posts/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/v0.5.11/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); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Checkpoints.sol) // This file was procedurally generated from scripts/generate/templates/Checkpoints.js. pragma solidity ^0.8.0; import "./math/Math.sol"; import "./math/SafeCast.sol"; /** * @dev This library defines the `History` struct, for checkpointing values as they change at different points in * time, and later looking up past values by block number. See {Votes} as an example. * * To create a history of checkpoints define a variable type `Checkpoints.History` in your contract, and store a new * checkpoint for the current transaction block using the {push} function. * * _Available since v4.5._ */ library Checkpoints { struct History { Checkpoint[] _checkpoints; } struct Checkpoint { uint32 _blockNumber; uint224 _value; } /** * @dev Returns the value at a given block number. If a checkpoint is not available at that block, the closest one * before it is returned, or zero otherwise. */ function getAtBlock(History storage self, uint256 blockNumber) internal view returns (uint256) { require(blockNumber < block.number, "Checkpoints: block not yet mined"); uint32 key = SafeCast.toUint32(blockNumber); uint256 len = self._checkpoints.length; uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value at a given block number. If a checkpoint is not available at that block, the closest one * before it is returned, or zero otherwise. Similar to {upperLookup} but optimized for the case when the searched * checkpoint is probably "recent", defined as being among the last sqrt(N) checkpoints where N is the number of * checkpoints. */ function getAtProbablyRecentBlock(History storage self, uint256 blockNumber) internal view returns (uint256) { require(blockNumber < block.number, "Checkpoints: block not yet mined"); uint32 key = SafeCast.toUint32(blockNumber); uint256 len = self._checkpoints.length; uint256 low = 0; uint256 high = len; if (len > 5) { uint256 mid = len - Math.sqrt(len); if (key < _unsafeAccess(self._checkpoints, mid)._blockNumber) { high = mid; } else { low = mid + 1; } } uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Pushes a value onto a History so that it is stored as the checkpoint for the current block. * * Returns previous value and new value. */ function push(History storage self, uint256 value) internal returns (uint256, uint256) { return _insert(self._checkpoints, SafeCast.toUint32(block.number), SafeCast.toUint224(value)); } /** * @dev Pushes a value onto a History, by updating the latest value using binary operation `op`. The new value will * be set to `op(latest, delta)`. * * Returns previous value and new value. */ function push( History storage self, function(uint256, uint256) view returns (uint256) op, uint256 delta ) internal returns (uint256, uint256) { return push(self, op(latest(self), delta)); } /** * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. */ function latest(History storage self) internal view returns (uint224) { uint256 pos = self._checkpoints.length; return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value * in the most recent checkpoint. */ function latestCheckpoint(History storage self) internal view returns ( bool exists, uint32 _blockNumber, uint224 _value ) { uint256 pos = self._checkpoints.length; if (pos == 0) { return (false, 0, 0); } else { Checkpoint memory ckpt = _unsafeAccess(self._checkpoints, pos - 1); return (true, ckpt._blockNumber, ckpt._value); } } /** * @dev Returns the number of checkpoint. */ function length(History storage self) internal view returns (uint256) { return self._checkpoints.length; } /** * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, * or by updating the last one. */ function _insert( Checkpoint[] storage self, uint32 key, uint224 value ) private returns (uint224, uint224) { uint256 pos = self.length; if (pos > 0) { // Copying to memory is important here. Checkpoint memory last = _unsafeAccess(self, pos - 1); // Checkpoints keys must be increasing. require(last._blockNumber <= key, "Checkpoint: invalid key"); // Update or push new checkpoint if (last._blockNumber == key) { _unsafeAccess(self, pos - 1)._value = value; } else { self.push(Checkpoint({_blockNumber: key, _value: value})); } return (last._value, value); } else { self.push(Checkpoint({_blockNumber: key, _value: value})); return (0, value); } } /** * @dev Return the index of the oldest checkpoint whose key is greater than the search key, or `high` if there is none. * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. * * WARNING: `high` should not be greater than the array's length. */ function _upperBinaryLookup( Checkpoint[] storage self, uint32 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._blockNumber > key) { high = mid; } else { low = mid + 1; } } return high; } /** * @dev Return the index of the oldest checkpoint whose key is greater or equal than the search key, or `high` if there is none. * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. * * WARNING: `high` should not be greater than the array's length. */ function _lowerBinaryLookup( Checkpoint[] storage self, uint32 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._blockNumber < key) { low = mid + 1; } else { high = mid; } } return high; } function _unsafeAccess(Checkpoint[] storage self, uint256 pos) private pure returns (Checkpoint storage result) { assembly { mstore(0, self.slot) result.slot := add(keccak256(0, 0x20), pos) } } struct Trace224 { Checkpoint224[] _checkpoints; } struct Checkpoint224 { uint32 _key; uint224 _value; } /** * @dev Pushes a (`key`, `value`) pair into a Trace224 so that it is stored as the checkpoint. * * Returns previous value and new value. */ function push( Trace224 storage self, uint32 key, uint224 value ) internal returns (uint224, uint224) { return _insert(self._checkpoints, key, value); } /** * @dev Returns the value in the oldest checkpoint with key greater or equal than the search key, or zero if there is none. */ function lowerLookup(Trace224 storage self, uint32 key) internal view returns (uint224) { uint256 len = self._checkpoints.length; uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len); return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value; } /** * @dev Returns the value in the most recent checkpoint with key lower or equal than the search key. */ function upperLookup(Trace224 storage self, uint32 key) internal view returns (uint224) { uint256 len = self._checkpoints.length; uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. */ function latest(Trace224 storage self) internal view returns (uint224) { uint256 pos = self._checkpoints.length; return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value * in the most recent checkpoint. */ function latestCheckpoint(Trace224 storage self) internal view returns ( bool exists, uint32 _key, uint224 _value ) { uint256 pos = self._checkpoints.length; if (pos == 0) { return (false, 0, 0); } else { Checkpoint224 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1); return (true, ckpt._key, ckpt._value); } } /** * @dev Returns the number of checkpoint. */ function length(Trace224 storage self) internal view returns (uint256) { return self._checkpoints.length; } /** * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, * or by updating the last one. */ function _insert( Checkpoint224[] storage self, uint32 key, uint224 value ) private returns (uint224, uint224) { uint256 pos = self.length; if (pos > 0) { // Copying to memory is important here. Checkpoint224 memory last = _unsafeAccess(self, pos - 1); // Checkpoints keys must be increasing. require(last._key <= key, "Checkpoint: invalid key"); // Update or push new checkpoint if (last._key == key) { _unsafeAccess(self, pos - 1)._value = value; } else { self.push(Checkpoint224({_key: key, _value: value})); } return (last._value, value); } else { self.push(Checkpoint224({_key: key, _value: value})); return (0, value); } } /** * @dev Return the index of the oldest checkpoint whose key is greater than the search key, or `high` if there is none. * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. * * WARNING: `high` should not be greater than the array's length. */ function _upperBinaryLookup( Checkpoint224[] storage self, uint32 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key > key) { high = mid; } else { low = mid + 1; } } return high; } /** * @dev Return the index of the oldest checkpoint whose key is greater or equal than the search key, or `high` if there is none. * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. * * WARNING: `high` should not be greater than the array's length. */ function _lowerBinaryLookup( Checkpoint224[] storage self, uint32 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key < key) { low = mid + 1; } else { high = mid; } } return high; } function _unsafeAccess(Checkpoint224[] storage self, uint256 pos) private pure returns (Checkpoint224 storage result) { assembly { mstore(0, self.slot) result.slot := add(keccak256(0, 0x20), pos) } } struct Trace160 { Checkpoint160[] _checkpoints; } struct Checkpoint160 { uint96 _key; uint160 _value; } /** * @dev Pushes a (`key`, `value`) pair into a Trace160 so that it is stored as the checkpoint. * * Returns previous value and new value. */ function push( Trace160 storage self, uint96 key, uint160 value ) internal returns (uint160, uint160) { return _insert(self._checkpoints, key, value); } /** * @dev Returns the value in the oldest checkpoint with key greater or equal than the search key, or zero if there is none. */ function lowerLookup(Trace160 storage self, uint96 key) internal view returns (uint160) { uint256 len = self._checkpoints.length; uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len); return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value; } /** * @dev Returns the value in the most recent checkpoint with key lower or equal than the search key. */ function upperLookup(Trace160 storage self, uint96 key) internal view returns (uint160) { uint256 len = self._checkpoints.length; uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. */ function latest(Trace160 storage self) internal view returns (uint160) { uint256 pos = self._checkpoints.length; return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value * in the most recent checkpoint. */ function latestCheckpoint(Trace160 storage self) internal view returns ( bool exists, uint96 _key, uint160 _value ) { uint256 pos = self._checkpoints.length; if (pos == 0) { return (false, 0, 0); } else { Checkpoint160 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1); return (true, ckpt._key, ckpt._value); } } /** * @dev Returns the number of checkpoint. */ function length(Trace160 storage self) internal view returns (uint256) { return self._checkpoints.length; } /** * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, * or by updating the last one. */ function _insert( Checkpoint160[] storage self, uint96 key, uint160 value ) private returns (uint160, uint160) { uint256 pos = self.length; if (pos > 0) { // Copying to memory is important here. Checkpoint160 memory last = _unsafeAccess(self, pos - 1); // Checkpoints keys must be increasing. require(last._key <= key, "Checkpoint: invalid key"); // Update or push new checkpoint if (last._key == key) { _unsafeAccess(self, pos - 1)._value = value; } else { self.push(Checkpoint160({_key: key, _value: value})); } return (last._value, value); } else { self.push(Checkpoint160({_key: key, _value: value})); return (0, value); } } /** * @dev Return the index of the oldest checkpoint whose key is greater than the search key, or `high` if there is none. * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. * * WARNING: `high` should not be greater than the array's length. */ function _upperBinaryLookup( Checkpoint160[] storage self, uint96 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key > key) { high = mid; } else { low = mid + 1; } } return high; } /** * @dev Return the index of the oldest checkpoint whose key is greater or equal than the search key, or `high` if there is none. * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. * * WARNING: `high` should not be greater than the array's length. */ function _lowerBinaryLookup( Checkpoint160[] storage self, uint96 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key < key) { low = mid + 1; } else { high = mid; } } return high; } function _unsafeAccess(Checkpoint160[] storage self, uint256 pos) private pure returns (Checkpoint160 storage result) { assembly { mstore(0, self.slot) result.slot := add(keccak256(0, 0x20), pos) } } }
// 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: MIT // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.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 `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); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; import "../Strings.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV // Deprecated in v4.8 } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address, RecoverError) { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } /** * @dev Returns an Ethereum Signed Message, created from `s`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s)); } /** * @dev Returns an Ethereum Signed Typed Data, created from a * `domainSeparator` and a `structHash`. This produces hash corresponding * to the one signed with the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] * JSON-RPC method as part of EIP-712. * * See {recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/EIP712.sol) pragma solidity ^0.8.0; import "./ECDSA.sol"; /** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. * * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible, * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding * they need in their contracts using a combination of `abi.encode` and `keccak256`. * * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA * ({_hashTypedDataV4}). * * The implementation of the domain separator was designed to be as efficient as possible while still properly updating * the chain id to protect against replay attacks on an eventual fork of the chain. * * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. * * _Available since v3.4._ */ abstract contract EIP712 { /* solhint-disable var-name-mixedcase */ // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to // invalidate the cached domain separator if the chain id changes. bytes32 private immutable _CACHED_DOMAIN_SEPARATOR; uint256 private immutable _CACHED_CHAIN_ID; address private immutable _CACHED_THIS; bytes32 private immutable _HASHED_NAME; bytes32 private immutable _HASHED_VERSION; bytes32 private immutable _TYPE_HASH; /* solhint-enable var-name-mixedcase */ /** * @dev Initializes the domain separator and parameter caches. * * The meaning of `name` and `version` is specified in * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: * * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. * - `version`: the current major version of the signing domain. * * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart * contract upgrade]. */ constructor(string memory name, string memory version) { bytes32 hashedName = keccak256(bytes(name)); bytes32 hashedVersion = keccak256(bytes(version)); bytes32 typeHash = keccak256( "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)" ); _HASHED_NAME = hashedName; _HASHED_VERSION = hashedVersion; _CACHED_CHAIN_ID = block.chainid; _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion); _CACHED_THIS = address(this); _TYPE_HASH = typeHash; } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) { return _CACHED_DOMAIN_SEPARATOR; } else { return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION); } } function _buildDomainSeparator( bytes32 typeHash, bytes32 nameHash, bytes32 versionHash ) private view returns (bytes32) { return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this))); } /** * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this * function returns the hash of the fully encoded EIP712 message for this domain. * * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: * * ```solidity * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( * keccak256("Mail(address to,string contents)"), * mailTo, * keccak256(bytes(mailContents)) * ))); * address signer = ECDSA.recover(digest, signature); * ``` */ function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) { return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/draft-EIP712.sol) pragma solidity ^0.8.0; // EIP-712 is Final as of 2022-08-11. This file is deprecated. import "./EIP712.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; } }
// 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (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) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 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 10, 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 * 8) < value ? 1 : 0); } } }
// 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); } }
{ "remappings": [ "ds-test/=lib/forge-std/lib/ds-test/src/", "forge-std/=lib/forge-std/src/" ], "optimizer": { "enabled": true, "runs": 200 }, "metadata": { "bytecodeHash": "ipfs" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"string","name":"baseURI_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"Disabled","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TRANSFERER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateBySig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"delegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPastTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getPastVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"safeMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"bool","name":"","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newBaseURI","type":"string"}],"name":"updateBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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
Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : owner (address): 0xdb22d2d37db92EA7fa6993C9f6Ead55FBb1eF4EA
Arg [1] : name_ (string): dOrg Passport
Arg [2] : symbol_ (string): dPass
Arg [3] : baseURI_ (string): https://passport.dorg.tech/passport/
-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 000000000000000000000000db22d2d37db92ea7fa6993c9f6ead55fbb1ef4ea
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000d
Arg [5] : 644f72672050617373706f727400000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [7] : 6450617373000000000000000000000000000000000000000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000024
Arg [9] : 68747470733a2f2f70617373706f72742e646f72672e746563682f7061737370
Arg [10] : 6f72742f00000000000000000000000000000000000000000000000000000000
Loading...
Loading
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.