More Info
Private Name Tags
ContractCreator
TokenTracker
Latest 25 from a total of 14,960 transactions
Transaction Hash |
Method
|
Block
|
From
|
To
|
|||||
---|---|---|---|---|---|---|---|---|---|
Approve | 29206942 | 2 days ago | IN | 0 ETH | 0.00000023 | ||||
Approve | 29129931 | 3 days ago | IN | 0 ETH | 0.00000006 | ||||
Transfer | 29059421 | 5 days ago | IN | 0 ETH | 0.00000014 | ||||
Approve | 29001089 | 6 days ago | IN | 0 ETH | 0.00000014 | ||||
Approve | 28961418 | 7 days ago | IN | 0 ETH | 0.0000001 | ||||
Approve | 28905919 | 9 days ago | IN | 0 ETH | 0.00000004 | ||||
Approve | 28905872 | 9 days ago | IN | 0 ETH | 0.00000009 | ||||
Approve | 28883755 | 9 days ago | IN | 0 ETH | 0.00000041 | ||||
Approve | 28869146 | 10 days ago | IN | 0 ETH | 0.00000013 | ||||
Transfer | 28851042 | 10 days ago | IN | 0 ETH | 0.00000009 | ||||
Approve | 28837952 | 10 days ago | IN | 0 ETH | 0.00000023 | ||||
Approve | 28836162 | 10 days ago | IN | 0 ETH | 0.00001859 | ||||
Approve | 28835556 | 10 days ago | IN | 0 ETH | 0.00000014 | ||||
Approve | 28835534 | 10 days ago | IN | 0 ETH | 0.00023184 | ||||
Approve | 28835421 | 10 days ago | IN | 0 ETH | 0.00000014 | ||||
Approve | 28835414 | 10 days ago | IN | 0 ETH | 0.00000468 | ||||
Approve | 28835413 | 10 days ago | IN | 0 ETH | 0.00000468 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000004 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000004 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000004 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000004 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000004 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000468 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000468 | ||||
Approve | 28835411 | 10 days ago | IN | 0 ETH | 0.00000468 |
Latest 1 internal transaction
Parent Transaction Hash | Block | From | To | |||
---|---|---|---|---|---|---|
27682424 | 37 days ago | Contract Creation | 0 ETH |
Loading...
Loading
Contract Source Code Verified (Exact Match)
Contract Name:
AlfacaToken
Compiler Version
v0.8.26+commit.8a97fa7a
Optimization Enabled:
Yes with 200 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.25; import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import {ERC20Votes} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol"; import {ERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol"; import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol"; import {Nonces} from "@openzeppelin/contracts/utils/Nonces.sol"; contract AlfacaToken is ERC20, ERC20Permit, ERC20Votes, ERC20Burnable { error NotDeployer(); string private _name; string private _symbol; uint8 private immutable _decimals; address private _deployer; uint256 private _fid; string private _image; string private _castHash; constructor( string memory name_, string memory symbol_, uint256 maxSupply_, address deployer_, uint256 fid_, string memory image_, string memory castHash_ ) ERC20(name_, symbol_) ERC20Permit(name_) { _deployer = deployer_; _fid = fid_; _image = image_; _castHash = castHash_; _mint(msg.sender, maxSupply_); } function updateImage(string memory image_) public { if (msg.sender != _deployer) { revert NotDeployer(); } _image = image_; } function _update( address from, address to, uint256 value ) internal override(ERC20, ERC20Votes) { super._update(from, to, value); } function nonces( address owner ) public view virtual override(ERC20Permit, Nonces) returns (uint256) { return super.nonces(owner); } function fid() public view returns (uint256) { return _fid; } function deployer() public view returns (address) { return _deployer; } function image() public view returns (string memory) { return _image; } function castHash() public view returns (string memory) { return _castHash; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "./IERC20.sol"; import {IERC20Metadata} from "./extensions/IERC20Metadata.sol"; import {Context} from "../../utils/Context.sol"; import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC-20 * applications. */ abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors { mapping(address account => uint256) private _balances; mapping(address account => mapping(address spender => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the default value returned by this function, unless * it's overridden. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `value`. */ function transfer(address to, uint256 value) public virtual returns (bool) { address owner = _msgSender(); _transfer(owner, to, value); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, value); return true; } /** * @dev See {IERC20-transferFrom}. * * Skips emitting an {Approval} event indicating an allowance update. This is not * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve]. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `value`. * - the caller must have allowance for ``from``'s tokens of at least * `value`. */ function transferFrom(address from, address to, uint256 value) public virtual returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, value); _transfer(from, to, value); return true; } /** * @dev Moves a `value` amount of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * NOTE: This function is not virtual, {_update} should be overridden instead. */ function _transfer(address from, address to, uint256 value) internal { if (from == address(0)) { revert ERC20InvalidSender(address(0)); } if (to == address(0)) { revert ERC20InvalidReceiver(address(0)); } _update(from, to, value); } /** * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from` * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding * this function. * * Emits a {Transfer} event. */ function _update(address from, address to, uint256 value) internal virtual { if (from == address(0)) { // Overflow check required: The rest of the code assumes that totalSupply never overflows _totalSupply += value; } else { uint256 fromBalance = _balances[from]; if (fromBalance < value) { revert ERC20InsufficientBalance(from, fromBalance, value); } unchecked { // Overflow not possible: value <= fromBalance <= totalSupply. _balances[from] = fromBalance - value; } } if (to == address(0)) { unchecked { // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply. _totalSupply -= value; } } else { unchecked { // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256. _balances[to] += value; } } emit Transfer(from, to, value); } /** * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0). * Relies on the `_update` mechanism * * Emits a {Transfer} event with `from` set to the zero address. * * NOTE: This function is not virtual, {_update} should be overridden instead. */ function _mint(address account, uint256 value) internal { if (account == address(0)) { revert ERC20InvalidReceiver(address(0)); } _update(address(0), account, value); } /** * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply. * Relies on the `_update` mechanism. * * Emits a {Transfer} event with `to` set to the zero address. * * NOTE: This function is not virtual, {_update} should be overridden instead */ function _burn(address account, uint256 value) internal { if (account == address(0)) { revert ERC20InvalidSender(address(0)); } _update(account, address(0), value); } /** * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. * * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument. */ function _approve(address owner, address spender, uint256 value) internal { _approve(owner, spender, value, true); } /** * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event. * * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any * `Approval` event during `transferFrom` operations. * * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to * true using the following override: * * ```solidity * function _approve(address owner, address spender, uint256 value, bool) internal virtual override { * super._approve(owner, spender, value, true); * } * ``` * * Requirements are the same as {_approve}. */ function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual { if (owner == address(0)) { revert ERC20InvalidApprover(address(0)); } if (spender == address(0)) { revert ERC20InvalidSpender(address(0)); } _allowances[owner][spender] = value; if (emitEvent) { emit Approval(owner, spender, value); } } /** * @dev Updates `owner` s allowance for `spender` based on spent `value`. * * Does not update the allowance value in case of infinite allowance. * Revert if not enough allowance is available. * * Does not emit an {Approval} event. */ function _spendAllowance(address owner, address spender, uint256 value) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { if (currentAllowance < value) { revert ERC20InsufficientAllowance(spender, currentAllowance, value); } unchecked { _approve(owner, spender, currentAllowance - value, false); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/ERC20Votes.sol) pragma solidity ^0.8.20; import {ERC20} from "../ERC20.sol"; import {Votes} from "../../../governance/utils/Votes.sol"; import {Checkpoints} from "../../../utils/structs/Checkpoints.sol"; /** * @dev Extension of ERC-20 to support Compound-like voting and delegation. This version is more generic than Compound's, * and supports token supply up to 2^208^ - 1, while COMP is limited to 2^96^ - 1. * * NOTE: This contract does not provide interface compatibility with Compound's COMP token. * * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either * by calling the {Votes-delegate} function directly, or by providing a signature to be used with {Votes-delegateBySig}. Voting * power can be queried through the public accessors {Votes-getVotes} and {Votes-getPastVotes}. * * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked. */ abstract contract ERC20Votes is ERC20, Votes { /** * @dev Total supply cap has been exceeded, introducing a risk of votes overflowing. */ error ERC20ExceededSafeSupply(uint256 increasedSupply, uint256 cap); /** * @dev Maximum token supply. Defaults to `type(uint208).max` (2^208^ - 1). * * This maximum is enforced in {_update}. It limits the total supply of the token, which is otherwise a uint256, * so that checkpoints can be stored in the Trace208 structure used by {Votes}. Increasing this value will not * remove the underlying limitation, and will cause {_update} to fail because of a math overflow in * {Votes-_transferVotingUnits}. An override could be used to further restrict the total supply (to a lower value) if * additional logic requires it. When resolving override conflicts on this function, the minimum should be * returned. */ function _maxSupply() internal view virtual returns (uint256) { return type(uint208).max; } /** * @dev Move voting power when tokens are transferred. * * Emits a {IVotes-DelegateVotesChanged} event. */ function _update(address from, address to, uint256 value) internal virtual override { super._update(from, to, value); if (from == address(0)) { uint256 supply = totalSupply(); uint256 cap = _maxSupply(); if (supply > cap) { revert ERC20ExceededSafeSupply(supply, cap); } } _transferVotingUnits(from, to, value); } /** * @dev Returns the voting units of an `account`. * * WARNING: Overriding this function may compromise the internal vote accounting. * `ERC20Votes` assumes tokens map to voting units 1:1 and this is not easy to change. */ function _getVotingUnits(address account) internal view virtual override returns (uint256) { return balanceOf(account); } /** * @dev Get number of checkpoints for `account`. */ function numCheckpoints(address account) public view virtual returns (uint32) { return _numCheckpoints(account); } /** * @dev Get the `pos`-th checkpoint for `account`. */ function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoints.Checkpoint208 memory) { return _checkpoints(account, pos); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/ERC20Permit.sol) pragma solidity ^0.8.20; import {IERC20Permit} from "./IERC20Permit.sol"; import {ERC20} from "../ERC20.sol"; import {ECDSA} from "../../../utils/cryptography/ECDSA.sol"; import {EIP712} from "../../../utils/cryptography/EIP712.sol"; import {Nonces} from "../../../utils/Nonces.sol"; /** * @dev Implementation of the ERC-20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[ERC-2612]. * * Adds the {permit} method, which can be used to change an account's ERC-20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712, Nonces { bytes32 private constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); /** * @dev Permit deadline has expired. */ error ERC2612ExpiredSignature(uint256 deadline); /** * @dev Mismatched signature. */ error ERC2612InvalidSigner(address signer, address owner); /** * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`. * * It's a good idea to use the same `name` that is defined as the ERC-20 token name. */ constructor(string memory name) EIP712(name, "1") {} /** * @inheritdoc IERC20Permit */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) public virtual { if (block.timestamp > deadline) { revert ERC2612ExpiredSignature(deadline); } bytes32 structHash = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline)); bytes32 hash = _hashTypedDataV4(structHash); address signer = ECDSA.recover(hash, v, r, s); if (signer != owner) { revert ERC2612InvalidSigner(signer, owner); } _approve(owner, spender, value); } /** * @inheritdoc IERC20Permit */ function nonces(address owner) public view virtual override(IERC20Permit, Nonces) returns (uint256) { return super.nonces(owner); } /** * @inheritdoc IERC20Permit */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view virtual returns (bytes32) { return _domainSeparatorV4(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol) pragma solidity ^0.8.20; import {ERC20} from "../ERC20.sol"; import {Context} from "../../../utils/Context.sol"; /** * @dev Extension of {ERC20} that allows token holders to destroy both their own * tokens and those that they have an allowance for, in a way that can be * recognized off-chain (via event analysis). */ abstract contract ERC20Burnable is Context, ERC20 { /** * @dev Destroys a `value` amount of tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 value) public virtual { _burn(_msgSender(), value); } /** * @dev Destroys a `value` amount of tokens from `account`, deducting from * the caller's allowance. * * See {ERC20-_burn} and {ERC20-allowance}. * * Requirements: * * - the caller must have allowance for ``accounts``'s tokens of at least * `value`. */ function burnFrom(address account, uint256 value) public virtual { _spendAllowance(account, _msgSender(), value); _burn(account, value); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol) pragma solidity ^0.8.20; /** * @dev Provides tracking nonces for addresses. Nonces will only increment. */ abstract contract Nonces { /** * @dev The nonce used for an `account` is not the expected current nonce. */ error InvalidAccountNonce(address account, uint256 currentNonce); mapping(address account => uint256) private _nonces; /** * @dev Returns the next unused nonce for an address. */ function nonces(address owner) public view virtual returns (uint256) { return _nonces[owner]; } /** * @dev Consumes a nonce. * * Returns the current value and increments nonce. */ function _useNonce(address owner) internal virtual returns (uint256) { // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be // decremented or reset. This guarantees that the nonce never overflows. unchecked { // It is important to do x++ and not ++x here. return _nonces[owner]++; } } /** * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`. */ function _useCheckedNonce(address owner, uint256 nonce) internal virtual { uint256 current = _useNonce(owner); if (nonce != current) { revert InvalidAccountNonce(owner, current); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC-20 standard as defined in the ERC. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 value) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets a `value` amount of tokens as the allowance of `spender` over the * caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 value) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC-20 standard. */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @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; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC6093.sol) pragma solidity ^0.8.20; /** * @dev Standard ERC-20 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens. */ interface IERC20Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC20InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC20InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers. * @param spender Address that may be allowed to operate on tokens without being their owner. * @param allowance Amount of tokens a `spender` is allowed to operate with. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC20InvalidApprover(address approver); /** * @dev Indicates a failure with the `spender` to be approved. Used in approvals. * @param spender Address that may be allowed to operate on tokens without being their owner. */ error ERC20InvalidSpender(address spender); } /** * @dev Standard ERC-721 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens. */ interface IERC721Errors { /** * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20. * Used in balance queries. * @param owner Address of the current owner of a token. */ error ERC721InvalidOwner(address owner); /** * @dev Indicates a `tokenId` whose `owner` is the zero address. * @param tokenId Identifier number of a token. */ error ERC721NonexistentToken(uint256 tokenId); /** * @dev Indicates an error related to the ownership over a particular token. Used in transfers. * @param sender Address whose tokens are being transferred. * @param tokenId Identifier number of a token. * @param owner Address of the current owner of a token. */ error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC721InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC721InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param tokenId Identifier number of a token. */ error ERC721InsufficientApproval(address operator, uint256 tokenId); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC721InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC721InvalidOperator(address operator); } /** * @dev Standard ERC-1155 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens. */ interface IERC1155Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. * @param tokenId Identifier number of a token. */ error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC1155InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC1155InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param owner Address of the current owner of a token. */ error ERC1155MissingApprovalForAll(address operator, address owner); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC1155InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC1155InvalidOperator(address operator); /** * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation. * Used in batch transfers. * @param idsLength Length of the array of token identifiers * @param valuesLength Length of the array of token amounts */ error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (governance/utils/Votes.sol) pragma solidity ^0.8.20; import {IERC5805} from "../../interfaces/IERC5805.sol"; import {Context} from "../../utils/Context.sol"; import {Nonces} from "../../utils/Nonces.sol"; import {EIP712} from "../../utils/cryptography/EIP712.sol"; import {Checkpoints} from "../../utils/structs/Checkpoints.sol"; import {SafeCast} from "../../utils/math/SafeCast.sol"; import {ECDSA} from "../../utils/cryptography/ECDSA.sol"; import {Time} from "../../utils/types/Time.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-_update}). */ abstract contract Votes is Context, EIP712, Nonces, IERC5805 { using Checkpoints for Checkpoints.Trace208; bytes32 private constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); mapping(address account => address) private _delegatee; mapping(address delegatee => Checkpoints.Trace208) private _delegateCheckpoints; Checkpoints.Trace208 private _totalCheckpoints; /** * @dev The clock was incorrectly modified. */ error ERC6372InconsistentClock(); /** * @dev Lookup to future votes is not available. */ error ERC5805FutureLookup(uint256 timepoint, uint48 clock); /** * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based * checkpoints (and voting), in which case {CLOCK_MODE} should be overridden as well to match. */ function clock() public view virtual returns (uint48) { return Time.blockNumber(); } /** * @dev Machine-readable description of the clock as specified in ERC-6372. */ // solhint-disable-next-line func-name-mixedcase function CLOCK_MODE() public view virtual returns (string memory) { // Check that the clock was not modified if (clock() != Time.blockNumber()) { revert ERC6372InconsistentClock(); } return "mode=blocknumber&from=default"; } /** * @dev Returns the current amount of votes that `account` has. */ function getVotes(address account) public view virtual returns (uint256) { return _delegateCheckpoints[account].latest(); } /** * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is * configured to use block numbers, this will return the value at the end of the corresponding block. * * Requirements: * * - `timepoint` must be in the past. If operating using block numbers, the block must be already mined. */ function getPastVotes(address account, uint256 timepoint) public view virtual returns (uint256) { uint48 currentTimepoint = clock(); if (timepoint >= currentTimepoint) { revert ERC5805FutureLookup(timepoint, currentTimepoint); } return _delegateCheckpoints[account].upperLookupRecent(SafeCast.toUint48(timepoint)); } /** * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is * configured to use block numbers, this will return the value at the end of the corresponding block. * * 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: * * - `timepoint` must be in the past. If operating using block numbers, the block must be already mined. */ function getPastTotalSupply(uint256 timepoint) public view virtual returns (uint256) { uint48 currentTimepoint = clock(); if (timepoint >= currentTimepoint) { revert ERC5805FutureLookup(timepoint, currentTimepoint); } return _totalCheckpoints.upperLookupRecent(SafeCast.toUint48(timepoint)); } /** * @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 returns (address) { return _delegatee[account]; } /** * @dev Delegates votes from the sender to `delegatee`. */ function delegate(address delegatee) public virtual { 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 { if (block.timestamp > expiry) { revert VotesExpiredSignature(expiry); } address signer = ECDSA.recover( _hashTypedDataV4(keccak256(abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry))), v, r, s ); _useCheckedNonce(signer, 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); _delegatee[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)) { _push(_totalCheckpoints, _add, SafeCast.toUint208(amount)); } if (to == address(0)) { _push(_totalCheckpoints, _subtract, SafeCast.toUint208(amount)); } _moveDelegateVotes(delegates(from), delegates(to), amount); } /** * @dev Moves delegated votes from one delegate to another. */ function _moveDelegateVotes(address from, address to, uint256 amount) internal virtual { if (from != to && amount > 0) { if (from != address(0)) { (uint256 oldValue, uint256 newValue) = _push( _delegateCheckpoints[from], _subtract, SafeCast.toUint208(amount) ); emit DelegateVotesChanged(from, oldValue, newValue); } if (to != address(0)) { (uint256 oldValue, uint256 newValue) = _push( _delegateCheckpoints[to], _add, SafeCast.toUint208(amount) ); emit DelegateVotesChanged(to, oldValue, newValue); } } } /** * @dev Get number of checkpoints for `account`. */ function _numCheckpoints(address account) internal view virtual returns (uint32) { return SafeCast.toUint32(_delegateCheckpoints[account].length()); } /** * @dev Get the `pos`-th checkpoint for `account`. */ function _checkpoints( address account, uint32 pos ) internal view virtual returns (Checkpoints.Checkpoint208 memory) { return _delegateCheckpoints[account].at(pos); } function _push( Checkpoints.Trace208 storage store, function(uint208, uint208) view returns (uint208) op, uint208 delta ) private returns (uint208 oldValue, uint208 newValue) { return store.push(clock(), op(store.latest(), delta)); } function _add(uint208 a, uint208 b) private pure returns (uint208) { return a + b; } function _subtract(uint208 a, uint208 b) private pure returns (uint208) { return a - b; } /** * @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 v5.1.0) (utils/structs/Checkpoints.sol) // This file was procedurally generated from scripts/generate/templates/Checkpoints.js. pragma solidity ^0.8.20; import {Math} from "../math/Math.sol"; /** * @dev This library defines the `Trace*` struct, for checkpointing values as they change at different points in * time, and later looking up past values by block number. See {Votes} as an example. * * To create a history of checkpoints define a variable type `Checkpoints.Trace*` in your contract, and store a new * checkpoint for the current transaction block using the {push} function. */ library Checkpoints { /** * @dev A value was attempted to be inserted on a past checkpoint. */ error CheckpointUnorderedInsertion(); struct Trace224 { Checkpoint224[] _checkpoints; } struct Checkpoint224 { uint32 _key; uint224 _value; } /** * @dev Pushes a (`key`, `value`) pair into a Trace224 so that it is stored as the checkpoint. * * Returns previous value and new value. * * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint32).max` key set will disable the * library. */ function push( Trace224 storage self, uint32 key, uint224 value ) internal returns (uint224 oldValue, uint224 newValue) { return _insert(self._checkpoints, key, value); } /** * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if * there is none. */ function lowerLookup(Trace224 storage self, uint32 key) internal view returns (uint224) { uint256 len = self._checkpoints.length; uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len); return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value; } /** * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero * if there is none. */ function upperLookup(Trace224 storage self, uint32 key) internal view returns (uint224) { uint256 len = self._checkpoints.length; uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero * if there is none. * * NOTE: This is a variant of {upperLookup} that is optimised to find "recent" checkpoint (checkpoints with high * keys). */ function upperLookupRecent(Trace224 storage self, uint32 key) internal view returns (uint224) { uint256 len = self._checkpoints.length; uint256 low = 0; uint256 high = len; if (len > 5) { uint256 mid = len - Math.sqrt(len); if (key < _unsafeAccess(self._checkpoints, mid)._key) { high = mid; } else { low = mid + 1; } } uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. */ function latest(Trace224 storage self) internal view returns (uint224) { uint256 pos = self._checkpoints.length; return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value * in the most recent checkpoint. */ function latestCheckpoint(Trace224 storage self) internal view returns (bool exists, uint32 _key, uint224 _value) { uint256 pos = self._checkpoints.length; if (pos == 0) { return (false, 0, 0); } else { Checkpoint224 storage ckpt = _unsafeAccess(self._checkpoints, pos - 1); return (true, ckpt._key, ckpt._value); } } /** * @dev Returns the number of checkpoint. */ function length(Trace224 storage self) internal view returns (uint256) { return self._checkpoints.length; } /** * @dev Returns checkpoint at given position. */ function at(Trace224 storage self, uint32 pos) internal view returns (Checkpoint224 memory) { return self._checkpoints[pos]; } /** * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, * or by updating the last one. */ function _insert( Checkpoint224[] storage self, uint32 key, uint224 value ) private returns (uint224 oldValue, uint224 newValue) { uint256 pos = self.length; if (pos > 0) { Checkpoint224 storage last = _unsafeAccess(self, pos - 1); uint32 lastKey = last._key; uint224 lastValue = last._value; // Checkpoint keys must be non-decreasing. if (lastKey > key) { revert CheckpointUnorderedInsertion(); } // Update or push new checkpoint if (lastKey == key) { last._value = value; } else { self.push(Checkpoint224({_key: key, _value: value})); } return (lastValue, value); } else { self.push(Checkpoint224({_key: key, _value: value})); return (0, value); } } /** * @dev Return the index of the first (oldest) checkpoint with key strictly bigger than the search key, or `high` * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive * `high`. * * WARNING: `high` should not be greater than the array's length. */ function _upperBinaryLookup( Checkpoint224[] storage self, uint32 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key > key) { high = mid; } else { low = mid + 1; } } return high; } /** * @dev Return the index of the first (oldest) checkpoint with key greater or equal than the search key, or `high` * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive * `high`. * * WARNING: `high` should not be greater than the array's length. */ function _lowerBinaryLookup( Checkpoint224[] storage self, uint32 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key < key) { low = mid + 1; } else { high = mid; } } return high; } /** * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. */ function _unsafeAccess( Checkpoint224[] storage self, uint256 pos ) private pure returns (Checkpoint224 storage result) { assembly { mstore(0, self.slot) result.slot := add(keccak256(0, 0x20), pos) } } struct Trace208 { Checkpoint208[] _checkpoints; } struct Checkpoint208 { uint48 _key; uint208 _value; } /** * @dev Pushes a (`key`, `value`) pair into a Trace208 so that it is stored as the checkpoint. * * Returns previous value and new value. * * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint48).max` key set will disable the * library. */ function push( Trace208 storage self, uint48 key, uint208 value ) internal returns (uint208 oldValue, uint208 newValue) { return _insert(self._checkpoints, key, value); } /** * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if * there is none. */ function lowerLookup(Trace208 storage self, uint48 key) internal view returns (uint208) { uint256 len = self._checkpoints.length; uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len); return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value; } /** * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero * if there is none. */ function upperLookup(Trace208 storage self, uint48 key) internal view returns (uint208) { uint256 len = self._checkpoints.length; uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero * if there is none. * * NOTE: This is a variant of {upperLookup} that is optimised to find "recent" checkpoint (checkpoints with high * keys). */ function upperLookupRecent(Trace208 storage self, uint48 key) internal view returns (uint208) { uint256 len = self._checkpoints.length; uint256 low = 0; uint256 high = len; if (len > 5) { uint256 mid = len - Math.sqrt(len); if (key < _unsafeAccess(self._checkpoints, mid)._key) { high = mid; } else { low = mid + 1; } } uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. */ function latest(Trace208 storage self) internal view returns (uint208) { uint256 pos = self._checkpoints.length; return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value * in the most recent checkpoint. */ function latestCheckpoint(Trace208 storage self) internal view returns (bool exists, uint48 _key, uint208 _value) { uint256 pos = self._checkpoints.length; if (pos == 0) { return (false, 0, 0); } else { Checkpoint208 storage ckpt = _unsafeAccess(self._checkpoints, pos - 1); return (true, ckpt._key, ckpt._value); } } /** * @dev Returns the number of checkpoint. */ function length(Trace208 storage self) internal view returns (uint256) { return self._checkpoints.length; } /** * @dev Returns checkpoint at given position. */ function at(Trace208 storage self, uint32 pos) internal view returns (Checkpoint208 memory) { return self._checkpoints[pos]; } /** * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, * or by updating the last one. */ function _insert( Checkpoint208[] storage self, uint48 key, uint208 value ) private returns (uint208 oldValue, uint208 newValue) { uint256 pos = self.length; if (pos > 0) { Checkpoint208 storage last = _unsafeAccess(self, pos - 1); uint48 lastKey = last._key; uint208 lastValue = last._value; // Checkpoint keys must be non-decreasing. if (lastKey > key) { revert CheckpointUnorderedInsertion(); } // Update or push new checkpoint if (lastKey == key) { last._value = value; } else { self.push(Checkpoint208({_key: key, _value: value})); } return (lastValue, value); } else { self.push(Checkpoint208({_key: key, _value: value})); return (0, value); } } /** * @dev Return the index of the first (oldest) checkpoint with key strictly bigger than the search key, or `high` * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive * `high`. * * WARNING: `high` should not be greater than the array's length. */ function _upperBinaryLookup( Checkpoint208[] storage self, uint48 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key > key) { high = mid; } else { low = mid + 1; } } return high; } /** * @dev Return the index of the first (oldest) checkpoint with key greater or equal than the search key, or `high` * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive * `high`. * * WARNING: `high` should not be greater than the array's length. */ function _lowerBinaryLookup( Checkpoint208[] storage self, uint48 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key < key) { low = mid + 1; } else { high = mid; } } return high; } /** * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. */ function _unsafeAccess( Checkpoint208[] storage self, uint256 pos ) private pure returns (Checkpoint208 storage result) { assembly { mstore(0, self.slot) result.slot := add(keccak256(0, 0x20), pos) } } struct Trace160 { Checkpoint160[] _checkpoints; } struct Checkpoint160 { uint96 _key; uint160 _value; } /** * @dev Pushes a (`key`, `value`) pair into a Trace160 so that it is stored as the checkpoint. * * Returns previous value and new value. * * IMPORTANT: Never accept `key` as a user input, since an arbitrary `type(uint96).max` key set will disable the * library. */ function push( Trace160 storage self, uint96 key, uint160 value ) internal returns (uint160 oldValue, uint160 newValue) { return _insert(self._checkpoints, key, value); } /** * @dev Returns the value in the first (oldest) checkpoint with key greater or equal than the search key, or zero if * there is none. */ function lowerLookup(Trace160 storage self, uint96 key) internal view returns (uint160) { uint256 len = self._checkpoints.length; uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len); return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value; } /** * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero * if there is none. */ function upperLookup(Trace160 storage self, uint96 key) internal view returns (uint160) { uint256 len = self._checkpoints.length; uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the last (most recent) checkpoint with key lower or equal than the search key, or zero * if there is none. * * NOTE: This is a variant of {upperLookup} that is optimised to find "recent" checkpoint (checkpoints with high * keys). */ function upperLookupRecent(Trace160 storage self, uint96 key) internal view returns (uint160) { uint256 len = self._checkpoints.length; uint256 low = 0; uint256 high = len; if (len > 5) { uint256 mid = len - Math.sqrt(len); if (key < _unsafeAccess(self._checkpoints, mid)._key) { high = mid; } else { low = mid + 1; } } uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high); return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. */ function latest(Trace160 storage self) internal view returns (uint160) { uint256 pos = self._checkpoints.length; return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; } /** * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value * in the most recent checkpoint. */ function latestCheckpoint(Trace160 storage self) internal view returns (bool exists, uint96 _key, uint160 _value) { uint256 pos = self._checkpoints.length; if (pos == 0) { return (false, 0, 0); } else { Checkpoint160 storage ckpt = _unsafeAccess(self._checkpoints, pos - 1); return (true, ckpt._key, ckpt._value); } } /** * @dev Returns the number of checkpoint. */ function length(Trace160 storage self) internal view returns (uint256) { return self._checkpoints.length; } /** * @dev Returns checkpoint at given position. */ function at(Trace160 storage self, uint32 pos) internal view returns (Checkpoint160 memory) { return self._checkpoints[pos]; } /** * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, * or by updating the last one. */ function _insert( Checkpoint160[] storage self, uint96 key, uint160 value ) private returns (uint160 oldValue, uint160 newValue) { uint256 pos = self.length; if (pos > 0) { Checkpoint160 storage last = _unsafeAccess(self, pos - 1); uint96 lastKey = last._key; uint160 lastValue = last._value; // Checkpoint keys must be non-decreasing. if (lastKey > key) { revert CheckpointUnorderedInsertion(); } // Update or push new checkpoint if (lastKey == key) { last._value = value; } else { self.push(Checkpoint160({_key: key, _value: value})); } return (lastValue, value); } else { self.push(Checkpoint160({_key: key, _value: value})); return (0, value); } } /** * @dev Return the index of the first (oldest) checkpoint with key strictly bigger than the search key, or `high` * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive * `high`. * * WARNING: `high` should not be greater than the array's length. */ function _upperBinaryLookup( Checkpoint160[] storage self, uint96 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key > key) { high = mid; } else { low = mid + 1; } } return high; } /** * @dev Return the index of the first (oldest) checkpoint with key greater or equal than the search key, or `high` * if there is none. `low` and `high` define a section where to do the search, with inclusive `low` and exclusive * `high`. * * WARNING: `high` should not be greater than the array's length. */ function _lowerBinaryLookup( Checkpoint160[] storage self, uint96 key, uint256 low, uint256 high ) private view returns (uint256) { while (low < high) { uint256 mid = Math.average(low, high); if (_unsafeAccess(self, mid)._key < key) { low = mid + 1; } else { high = mid; } } return high; } /** * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. */ function _unsafeAccess( Checkpoint160[] storage self, uint256 pos ) private pure returns (Checkpoint160 storage result) { assembly { mstore(0, self.slot) result.slot := add(keccak256(0, 0x20), pos) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC-20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[ERC-2612]. * * Adds the {permit} method, which can be used to change an account's ERC-20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. * * CAUTION: See Security Considerations above. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.20; /** * @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 } /** * @dev The signature derives the `address(0)`. */ error ECDSAInvalidSignature(); /** * @dev The signature has an invalid length. */ error ECDSAInvalidSignatureLength(uint256 length); /** * @dev The signature has an S value that is in the upper half order. */ error ECDSAInvalidSignatureS(bytes32 s); /** * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not * return address(0) without also returning an error description. Errors are documented using an enum (error type) * and a bytes32 providing additional information about the error. * * If no error is returned, then the address can be used for verification purposes. * * The `ecrecover` EVM precompile 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 {MessageHashUtils-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] */ function tryRecover( bytes32 hash, bytes memory signature ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) { 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. assembly ("memory-safe") { 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, bytes32(signature.length)); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM precompile 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 {MessageHashUtils-toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature); _throwError(error, errorArg); 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[ERC-2098 short signatures] */ function tryRecover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) { unchecked { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); // We do not check for an overflow here since the shift operation results in 0 or 1. 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. */ function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs); _throwError(error, errorArg); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) { // 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, s); } // 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, bytes32(0)); } return (signer, RecoverError.NoError, bytes32(0)); } /** * @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, bytes32 errorArg) = tryRecover(hash, v, r, s); _throwError(error, errorArg); return recovered; } /** * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided. */ function _throwError(RecoverError error, bytes32 errorArg) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert ECDSAInvalidSignature(); } else if (error == RecoverError.InvalidSignatureLength) { revert ECDSAInvalidSignatureLength(uint256(errorArg)); } else if (error == RecoverError.InvalidSignatureS) { revert ECDSAInvalidSignatureS(errorArg); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/EIP712.sol) pragma solidity ^0.8.20; import {MessageHashUtils} from "./MessageHashUtils.sol"; import {ShortStrings, ShortString} from "../ShortStrings.sol"; import {IERC5267} from "../../interfaces/IERC5267.sol"; /** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP-712] is a standard for hashing and signing of typed structured data. * * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose * encoding is very generic and therefore its 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 order to * produce the hash of their typed data 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]. * * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the * separator from the immutable values, which is cheaper than accessing a cached version in cold storage. * * @custom:oz-upgrades-unsafe-allow state-variable-immutable */ abstract contract EIP712 is IERC5267 { using ShortStrings for *; bytes32 private constant TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); // 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 _cachedDomainSeparator; uint256 private immutable _cachedChainId; address private immutable _cachedThis; bytes32 private immutable _hashedName; bytes32 private immutable _hashedVersion; ShortString private immutable _name; ShortString private immutable _version; string private _nameFallback; string private _versionFallback; /** * @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) { _name = name.toShortStringWithFallback(_nameFallback); _version = version.toShortStringWithFallback(_versionFallback); _hashedName = keccak256(bytes(name)); _hashedVersion = keccak256(bytes(version)); _cachedChainId = block.chainid; _cachedDomainSeparator = _buildDomainSeparator(); _cachedThis = address(this); } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { if (address(this) == _cachedThis && block.chainid == _cachedChainId) { return _cachedDomainSeparator; } else { return _buildDomainSeparator(); } } function _buildDomainSeparator() private view returns (bytes32) { return keccak256(abi.encode(TYPE_HASH, _hashedName, _hashedVersion, 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 MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash); } /** * @dev See {IERC-5267}. */ function eip712Domain() public view virtual returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions ) { return ( hex"0f", // 01111 _EIP712Name(), _EIP712Version(), block.chainid, address(this), bytes32(0), new uint256[](0) ); } /** * @dev The name parameter for the EIP712 domain. * * NOTE: By default this function reads _name which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _EIP712Name() internal view returns (string memory) { return _name.toStringWithFallback(_nameFallback); } /** * @dev The version parameter for the EIP712 domain. * * NOTE: By default this function reads _version which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _EIP712Version() internal view returns (string memory) { return _version.toStringWithFallback(_versionFallback); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5805.sol) pragma solidity ^0.8.20; import {IVotes} from "../governance/utils/IVotes.sol"; import {IERC6372} from "./IERC6372.sol"; interface IERC5805 is IERC6372, IVotes {}
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol) // This file was procedurally generated from scripts/generate/templates/SafeCast.js. pragma solidity ^0.8.20; /** * @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow * checks. * * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can * easily result in undesired exploitation or bugs, since developers usually * assume that overflows raise errors. `SafeCast` restores this intuition by * reverting the transaction when such an operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeCast { /** * @dev Value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value); /** * @dev An int value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedIntToUint(int256 value); /** * @dev Value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedIntDowncast(uint8 bits, int256 value); /** * @dev An uint value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedUintToInt(uint256 value); /** * @dev Returns the downcasted uint248 from uint256, reverting on * overflow (when the input is greater than largest uint248). * * Counterpart to Solidity's `uint248` operator. * * Requirements: * * - input must fit into 248 bits */ function toUint248(uint256 value) internal pure returns (uint248) { if (value > type(uint248).max) { revert SafeCastOverflowedUintDowncast(248, value); } return uint248(value); } /** * @dev Returns the downcasted uint240 from uint256, reverting on * overflow (when the input is greater than largest uint240). * * Counterpart to Solidity's `uint240` operator. * * Requirements: * * - input must fit into 240 bits */ function toUint240(uint256 value) internal pure returns (uint240) { if (value > type(uint240).max) { revert SafeCastOverflowedUintDowncast(240, value); } return uint240(value); } /** * @dev Returns the downcasted uint232 from uint256, reverting on * overflow (when the input is greater than largest uint232). * * Counterpart to Solidity's `uint232` operator. * * Requirements: * * - input must fit into 232 bits */ function toUint232(uint256 value) internal pure returns (uint232) { if (value > type(uint232).max) { revert SafeCastOverflowedUintDowncast(232, value); } return uint232(value); } /** * @dev Returns the downcasted uint224 from uint256, reverting on * overflow (when the input is greater than largest uint224). * * Counterpart to Solidity's `uint224` operator. * * Requirements: * * - input must fit into 224 bits */ function toUint224(uint256 value) internal pure returns (uint224) { if (value > type(uint224).max) { revert SafeCastOverflowedUintDowncast(224, value); } return uint224(value); } /** * @dev Returns the downcasted uint216 from uint256, reverting on * overflow (when the input is greater than largest uint216). * * Counterpart to Solidity's `uint216` operator. * * Requirements: * * - input must fit into 216 bits */ function toUint216(uint256 value) internal pure returns (uint216) { if (value > type(uint216).max) { revert SafeCastOverflowedUintDowncast(216, value); } return uint216(value); } /** * @dev Returns the downcasted uint208 from uint256, reverting on * overflow (when the input is greater than largest uint208). * * Counterpart to Solidity's `uint208` operator. * * Requirements: * * - input must fit into 208 bits */ function toUint208(uint256 value) internal pure returns (uint208) { if (value > type(uint208).max) { revert SafeCastOverflowedUintDowncast(208, value); } return uint208(value); } /** * @dev Returns the downcasted uint200 from uint256, reverting on * overflow (when the input is greater than largest uint200). * * Counterpart to Solidity's `uint200` operator. * * Requirements: * * - input must fit into 200 bits */ function toUint200(uint256 value) internal pure returns (uint200) { if (value > type(uint200).max) { revert SafeCastOverflowedUintDowncast(200, value); } return uint200(value); } /** * @dev Returns the downcasted uint192 from uint256, reverting on * overflow (when the input is greater than largest uint192). * * Counterpart to Solidity's `uint192` operator. * * Requirements: * * - input must fit into 192 bits */ function toUint192(uint256 value) internal pure returns (uint192) { if (value > type(uint192).max) { revert SafeCastOverflowedUintDowncast(192, value); } return uint192(value); } /** * @dev Returns the downcasted uint184 from uint256, reverting on * overflow (when the input is greater than largest uint184). * * Counterpart to Solidity's `uint184` operator. * * Requirements: * * - input must fit into 184 bits */ function toUint184(uint256 value) internal pure returns (uint184) { if (value > type(uint184).max) { revert SafeCastOverflowedUintDowncast(184, value); } return uint184(value); } /** * @dev Returns the downcasted uint176 from uint256, reverting on * overflow (when the input is greater than largest uint176). * * Counterpart to Solidity's `uint176` operator. * * Requirements: * * - input must fit into 176 bits */ function toUint176(uint256 value) internal pure returns (uint176) { if (value > type(uint176).max) { revert SafeCastOverflowedUintDowncast(176, value); } return uint176(value); } /** * @dev Returns the downcasted uint168 from uint256, reverting on * overflow (when the input is greater than largest uint168). * * Counterpart to Solidity's `uint168` operator. * * Requirements: * * - input must fit into 168 bits */ function toUint168(uint256 value) internal pure returns (uint168) { if (value > type(uint168).max) { revert SafeCastOverflowedUintDowncast(168, value); } return uint168(value); } /** * @dev Returns the downcasted uint160 from uint256, reverting on * overflow (when the input is greater than largest uint160). * * Counterpart to Solidity's `uint160` operator. * * Requirements: * * - input must fit into 160 bits */ function toUint160(uint256 value) internal pure returns (uint160) { if (value > type(uint160).max) { revert SafeCastOverflowedUintDowncast(160, value); } return uint160(value); } /** * @dev Returns the downcasted uint152 from uint256, reverting on * overflow (when the input is greater than largest uint152). * * Counterpart to Solidity's `uint152` operator. * * Requirements: * * - input must fit into 152 bits */ function toUint152(uint256 value) internal pure returns (uint152) { if (value > type(uint152).max) { revert SafeCastOverflowedUintDowncast(152, value); } return uint152(value); } /** * @dev Returns the downcasted uint144 from uint256, reverting on * overflow (when the input is greater than largest uint144). * * Counterpart to Solidity's `uint144` operator. * * Requirements: * * - input must fit into 144 bits */ function toUint144(uint256 value) internal pure returns (uint144) { if (value > type(uint144).max) { revert SafeCastOverflowedUintDowncast(144, value); } return uint144(value); } /** * @dev Returns the downcasted uint136 from uint256, reverting on * overflow (when the input is greater than largest uint136). * * Counterpart to Solidity's `uint136` operator. * * Requirements: * * - input must fit into 136 bits */ function toUint136(uint256 value) internal pure returns (uint136) { if (value > type(uint136).max) { revert SafeCastOverflowedUintDowncast(136, value); } return uint136(value); } /** * @dev Returns the downcasted uint128 from uint256, reverting on * overflow (when the input is greater than largest uint128). * * Counterpart to Solidity's `uint128` operator. * * Requirements: * * - input must fit into 128 bits */ function toUint128(uint256 value) internal pure returns (uint128) { if (value > type(uint128).max) { revert SafeCastOverflowedUintDowncast(128, value); } return uint128(value); } /** * @dev Returns the downcasted uint120 from uint256, reverting on * overflow (when the input is greater than largest uint120). * * Counterpart to Solidity's `uint120` operator. * * Requirements: * * - input must fit into 120 bits */ function toUint120(uint256 value) internal pure returns (uint120) { if (value > type(uint120).max) { revert SafeCastOverflowedUintDowncast(120, value); } return uint120(value); } /** * @dev Returns the downcasted uint112 from uint256, reverting on * overflow (when the input is greater than largest uint112). * * Counterpart to Solidity's `uint112` operator. * * Requirements: * * - input must fit into 112 bits */ function toUint112(uint256 value) internal pure returns (uint112) { if (value > type(uint112).max) { revert SafeCastOverflowedUintDowncast(112, value); } return uint112(value); } /** * @dev Returns the downcasted uint104 from uint256, reverting on * overflow (when the input is greater than largest uint104). * * Counterpart to Solidity's `uint104` operator. * * Requirements: * * - input must fit into 104 bits */ function toUint104(uint256 value) internal pure returns (uint104) { if (value > type(uint104).max) { revert SafeCastOverflowedUintDowncast(104, value); } return uint104(value); } /** * @dev Returns the downcasted uint96 from uint256, reverting on * overflow (when the input is greater than largest uint96). * * Counterpart to Solidity's `uint96` operator. * * Requirements: * * - input must fit into 96 bits */ function toUint96(uint256 value) internal pure returns (uint96) { if (value > type(uint96).max) { revert SafeCastOverflowedUintDowncast(96, value); } return uint96(value); } /** * @dev Returns the downcasted uint88 from uint256, reverting on * overflow (when the input is greater than largest uint88). * * Counterpart to Solidity's `uint88` operator. * * Requirements: * * - input must fit into 88 bits */ function toUint88(uint256 value) internal pure returns (uint88) { if (value > type(uint88).max) { revert SafeCastOverflowedUintDowncast(88, value); } return uint88(value); } /** * @dev Returns the downcasted uint80 from uint256, reverting on * overflow (when the input is greater than largest uint80). * * Counterpart to Solidity's `uint80` operator. * * Requirements: * * - input must fit into 80 bits */ function toUint80(uint256 value) internal pure returns (uint80) { if (value > type(uint80).max) { revert SafeCastOverflowedUintDowncast(80, value); } return uint80(value); } /** * @dev Returns the downcasted uint72 from uint256, reverting on * overflow (when the input is greater than largest uint72). * * Counterpart to Solidity's `uint72` operator. * * Requirements: * * - input must fit into 72 bits */ function toUint72(uint256 value) internal pure returns (uint72) { if (value > type(uint72).max) { revert SafeCastOverflowedUintDowncast(72, value); } return uint72(value); } /** * @dev Returns the downcasted uint64 from uint256, reverting on * overflow (when the input is greater than largest uint64). * * Counterpart to Solidity's `uint64` operator. * * Requirements: * * - input must fit into 64 bits */ function toUint64(uint256 value) internal pure returns (uint64) { if (value > type(uint64).max) { revert SafeCastOverflowedUintDowncast(64, value); } return uint64(value); } /** * @dev Returns the downcasted uint56 from uint256, reverting on * overflow (when the input is greater than largest uint56). * * Counterpart to Solidity's `uint56` operator. * * Requirements: * * - input must fit into 56 bits */ function toUint56(uint256 value) internal pure returns (uint56) { if (value > type(uint56).max) { revert SafeCastOverflowedUintDowncast(56, value); } return uint56(value); } /** * @dev Returns the downcasted uint48 from uint256, reverting on * overflow (when the input is greater than largest uint48). * * Counterpart to Solidity's `uint48` operator. * * Requirements: * * - input must fit into 48 bits */ function toUint48(uint256 value) internal pure returns (uint48) { if (value > type(uint48).max) { revert SafeCastOverflowedUintDowncast(48, value); } return uint48(value); } /** * @dev Returns the downcasted uint40 from uint256, reverting on * overflow (when the input is greater than largest uint40). * * Counterpart to Solidity's `uint40` operator. * * Requirements: * * - input must fit into 40 bits */ function toUint40(uint256 value) internal pure returns (uint40) { if (value > type(uint40).max) { revert SafeCastOverflowedUintDowncast(40, value); } return uint40(value); } /** * @dev Returns the downcasted uint32 from uint256, reverting on * overflow (when the input is greater than largest uint32). * * Counterpart to Solidity's `uint32` operator. * * Requirements: * * - input must fit into 32 bits */ function toUint32(uint256 value) internal pure returns (uint32) { if (value > type(uint32).max) { revert SafeCastOverflowedUintDowncast(32, value); } return uint32(value); } /** * @dev Returns the downcasted uint24 from uint256, reverting on * overflow (when the input is greater than largest uint24). * * Counterpart to Solidity's `uint24` operator. * * Requirements: * * - input must fit into 24 bits */ function toUint24(uint256 value) internal pure returns (uint24) { if (value > type(uint24).max) { revert SafeCastOverflowedUintDowncast(24, value); } return uint24(value); } /** * @dev Returns the downcasted uint16 from uint256, reverting on * overflow (when the input is greater than largest uint16). * * Counterpart to Solidity's `uint16` operator. * * Requirements: * * - input must fit into 16 bits */ function toUint16(uint256 value) internal pure returns (uint16) { if (value > type(uint16).max) { revert SafeCastOverflowedUintDowncast(16, value); } return uint16(value); } /** * @dev Returns the downcasted uint8 from uint256, reverting on * overflow (when the input is greater than largest uint8). * * Counterpart to Solidity's `uint8` operator. * * Requirements: * * - input must fit into 8 bits */ function toUint8(uint256 value) internal pure returns (uint8) { if (value > type(uint8).max) { revert SafeCastOverflowedUintDowncast(8, value); } return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. */ function toUint256(int256 value) internal pure returns (uint256) { if (value < 0) { revert SafeCastOverflowedIntToUint(value); } return uint256(value); } /** * @dev Returns the downcasted int248 from int256, reverting on * overflow (when the input is less than smallest int248 or * greater than largest int248). * * Counterpart to Solidity's `int248` operator. * * Requirements: * * - input must fit into 248 bits */ function toInt248(int256 value) internal pure returns (int248 downcasted) { downcasted = int248(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(248, value); } } /** * @dev Returns the downcasted int240 from int256, reverting on * overflow (when the input is less than smallest int240 or * greater than largest int240). * * Counterpart to Solidity's `int240` operator. * * Requirements: * * - input must fit into 240 bits */ function toInt240(int256 value) internal pure returns (int240 downcasted) { downcasted = int240(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(240, value); } } /** * @dev Returns the downcasted int232 from int256, reverting on * overflow (when the input is less than smallest int232 or * greater than largest int232). * * Counterpart to Solidity's `int232` operator. * * Requirements: * * - input must fit into 232 bits */ function toInt232(int256 value) internal pure returns (int232 downcasted) { downcasted = int232(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(232, value); } } /** * @dev Returns the downcasted int224 from int256, reverting on * overflow (when the input is less than smallest int224 or * greater than largest int224). * * Counterpart to Solidity's `int224` operator. * * Requirements: * * - input must fit into 224 bits */ function toInt224(int256 value) internal pure returns (int224 downcasted) { downcasted = int224(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(224, value); } } /** * @dev Returns the downcasted int216 from int256, reverting on * overflow (when the input is less than smallest int216 or * greater than largest int216). * * Counterpart to Solidity's `int216` operator. * * Requirements: * * - input must fit into 216 bits */ function toInt216(int256 value) internal pure returns (int216 downcasted) { downcasted = int216(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(216, value); } } /** * @dev Returns the downcasted int208 from int256, reverting on * overflow (when the input is less than smallest int208 or * greater than largest int208). * * Counterpart to Solidity's `int208` operator. * * Requirements: * * - input must fit into 208 bits */ function toInt208(int256 value) internal pure returns (int208 downcasted) { downcasted = int208(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(208, value); } } /** * @dev Returns the downcasted int200 from int256, reverting on * overflow (when the input is less than smallest int200 or * greater than largest int200). * * Counterpart to Solidity's `int200` operator. * * Requirements: * * - input must fit into 200 bits */ function toInt200(int256 value) internal pure returns (int200 downcasted) { downcasted = int200(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(200, value); } } /** * @dev Returns the downcasted int192 from int256, reverting on * overflow (when the input is less than smallest int192 or * greater than largest int192). * * Counterpart to Solidity's `int192` operator. * * Requirements: * * - input must fit into 192 bits */ function toInt192(int256 value) internal pure returns (int192 downcasted) { downcasted = int192(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(192, value); } } /** * @dev Returns the downcasted int184 from int256, reverting on * overflow (when the input is less than smallest int184 or * greater than largest int184). * * Counterpart to Solidity's `int184` operator. * * Requirements: * * - input must fit into 184 bits */ function toInt184(int256 value) internal pure returns (int184 downcasted) { downcasted = int184(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(184, value); } } /** * @dev Returns the downcasted int176 from int256, reverting on * overflow (when the input is less than smallest int176 or * greater than largest int176). * * Counterpart to Solidity's `int176` operator. * * Requirements: * * - input must fit into 176 bits */ function toInt176(int256 value) internal pure returns (int176 downcasted) { downcasted = int176(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(176, value); } } /** * @dev Returns the downcasted int168 from int256, reverting on * overflow (when the input is less than smallest int168 or * greater than largest int168). * * Counterpart to Solidity's `int168` operator. * * Requirements: * * - input must fit into 168 bits */ function toInt168(int256 value) internal pure returns (int168 downcasted) { downcasted = int168(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(168, value); } } /** * @dev Returns the downcasted int160 from int256, reverting on * overflow (when the input is less than smallest int160 or * greater than largest int160). * * Counterpart to Solidity's `int160` operator. * * Requirements: * * - input must fit into 160 bits */ function toInt160(int256 value) internal pure returns (int160 downcasted) { downcasted = int160(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(160, value); } } /** * @dev Returns the downcasted int152 from int256, reverting on * overflow (when the input is less than smallest int152 or * greater than largest int152). * * Counterpart to Solidity's `int152` operator. * * Requirements: * * - input must fit into 152 bits */ function toInt152(int256 value) internal pure returns (int152 downcasted) { downcasted = int152(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(152, value); } } /** * @dev Returns the downcasted int144 from int256, reverting on * overflow (when the input is less than smallest int144 or * greater than largest int144). * * Counterpart to Solidity's `int144` operator. * * Requirements: * * - input must fit into 144 bits */ function toInt144(int256 value) internal pure returns (int144 downcasted) { downcasted = int144(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(144, value); } } /** * @dev Returns the downcasted int136 from int256, reverting on * overflow (when the input is less than smallest int136 or * greater than largest int136). * * Counterpart to Solidity's `int136` operator. * * Requirements: * * - input must fit into 136 bits */ function toInt136(int256 value) internal pure returns (int136 downcasted) { downcasted = int136(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(136, value); } } /** * @dev Returns the downcasted int128 from int256, reverting on * overflow (when the input is less than smallest int128 or * greater than largest int128). * * Counterpart to Solidity's `int128` operator. * * Requirements: * * - input must fit into 128 bits */ function toInt128(int256 value) internal pure returns (int128 downcasted) { downcasted = int128(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(128, value); } } /** * @dev Returns the downcasted int120 from int256, reverting on * overflow (when the input is less than smallest int120 or * greater than largest int120). * * Counterpart to Solidity's `int120` operator. * * Requirements: * * - input must fit into 120 bits */ function toInt120(int256 value) internal pure returns (int120 downcasted) { downcasted = int120(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(120, value); } } /** * @dev Returns the downcasted int112 from int256, reverting on * overflow (when the input is less than smallest int112 or * greater than largest int112). * * Counterpart to Solidity's `int112` operator. * * Requirements: * * - input must fit into 112 bits */ function toInt112(int256 value) internal pure returns (int112 downcasted) { downcasted = int112(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(112, value); } } /** * @dev Returns the downcasted int104 from int256, reverting on * overflow (when the input is less than smallest int104 or * greater than largest int104). * * Counterpart to Solidity's `int104` operator. * * Requirements: * * - input must fit into 104 bits */ function toInt104(int256 value) internal pure returns (int104 downcasted) { downcasted = int104(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(104, value); } } /** * @dev Returns the downcasted int96 from int256, reverting on * overflow (when the input is less than smallest int96 or * greater than largest int96). * * Counterpart to Solidity's `int96` operator. * * Requirements: * * - input must fit into 96 bits */ function toInt96(int256 value) internal pure returns (int96 downcasted) { downcasted = int96(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(96, value); } } /** * @dev Returns the downcasted int88 from int256, reverting on * overflow (when the input is less than smallest int88 or * greater than largest int88). * * Counterpart to Solidity's `int88` operator. * * Requirements: * * - input must fit into 88 bits */ function toInt88(int256 value) internal pure returns (int88 downcasted) { downcasted = int88(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(88, value); } } /** * @dev Returns the downcasted int80 from int256, reverting on * overflow (when the input is less than smallest int80 or * greater than largest int80). * * Counterpart to Solidity's `int80` operator. * * Requirements: * * - input must fit into 80 bits */ function toInt80(int256 value) internal pure returns (int80 downcasted) { downcasted = int80(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(80, value); } } /** * @dev Returns the downcasted int72 from int256, reverting on * overflow (when the input is less than smallest int72 or * greater than largest int72). * * Counterpart to Solidity's `int72` operator. * * Requirements: * * - input must fit into 72 bits */ function toInt72(int256 value) internal pure returns (int72 downcasted) { downcasted = int72(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(72, value); } } /** * @dev Returns the downcasted int64 from int256, reverting on * overflow (when the input is less than smallest int64 or * greater than largest int64). * * Counterpart to Solidity's `int64` operator. * * Requirements: * * - input must fit into 64 bits */ function toInt64(int256 value) internal pure returns (int64 downcasted) { downcasted = int64(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(64, value); } } /** * @dev Returns the downcasted int56 from int256, reverting on * overflow (when the input is less than smallest int56 or * greater than largest int56). * * Counterpart to Solidity's `int56` operator. * * Requirements: * * - input must fit into 56 bits */ function toInt56(int256 value) internal pure returns (int56 downcasted) { downcasted = int56(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(56, value); } } /** * @dev Returns the downcasted int48 from int256, reverting on * overflow (when the input is less than smallest int48 or * greater than largest int48). * * Counterpart to Solidity's `int48` operator. * * Requirements: * * - input must fit into 48 bits */ function toInt48(int256 value) internal pure returns (int48 downcasted) { downcasted = int48(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(48, value); } } /** * @dev Returns the downcasted int40 from int256, reverting on * overflow (when the input is less than smallest int40 or * greater than largest int40). * * Counterpart to Solidity's `int40` operator. * * Requirements: * * - input must fit into 40 bits */ function toInt40(int256 value) internal pure returns (int40 downcasted) { downcasted = int40(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(40, value); } } /** * @dev Returns the downcasted int32 from int256, reverting on * overflow (when the input is less than smallest int32 or * greater than largest int32). * * Counterpart to Solidity's `int32` operator. * * Requirements: * * - input must fit into 32 bits */ function toInt32(int256 value) internal pure returns (int32 downcasted) { downcasted = int32(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(32, value); } } /** * @dev Returns the downcasted int24 from int256, reverting on * overflow (when the input is less than smallest int24 or * greater than largest int24). * * Counterpart to Solidity's `int24` operator. * * Requirements: * * - input must fit into 24 bits */ function toInt24(int256 value) internal pure returns (int24 downcasted) { downcasted = int24(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(24, value); } } /** * @dev Returns the downcasted int16 from int256, reverting on * overflow (when the input is less than smallest int16 or * greater than largest int16). * * Counterpart to Solidity's `int16` operator. * * Requirements: * * - input must fit into 16 bits */ function toInt16(int256 value) internal pure returns (int16 downcasted) { downcasted = int16(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(16, value); } } /** * @dev Returns the downcasted int8 from int256, reverting on * overflow (when the input is less than smallest int8 or * greater than largest int8). * * Counterpart to Solidity's `int8` operator. * * Requirements: * * - input must fit into 8 bits */ function toInt8(int256 value) internal pure returns (int8 downcasted) { downcasted = int8(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(8, value); } } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive if (value > uint256(type(int256).max)) { revert SafeCastOverflowedUintToInt(value); } return int256(value); } /** * @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump. */ function toUint(bool b) internal pure returns (uint256 u) { assembly ("memory-safe") { u := iszero(iszero(b)) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/types/Time.sol) pragma solidity ^0.8.20; import {Math} from "../math/Math.sol"; import {SafeCast} from "../math/SafeCast.sol"; /** * @dev This library provides helpers for manipulating time-related objects. * * It uses the following types: * - `uint48` for timepoints * - `uint32` for durations * * While the library doesn't provide specific types for timepoints and duration, it does provide: * - a `Delay` type to represent duration that can be programmed to change value automatically at a given point * - additional helper functions */ library Time { using Time for *; /** * @dev Get the block timestamp as a Timepoint. */ function timestamp() internal view returns (uint48) { return SafeCast.toUint48(block.timestamp); } /** * @dev Get the block number as a Timepoint. */ function blockNumber() internal view returns (uint48) { return SafeCast.toUint48(block.number); } // ==================================================== Delay ===================================================== /** * @dev A `Delay` is a uint32 duration that can be programmed to change value automatically at a given point in the * future. The "effect" timepoint describes when the transitions happens from the "old" value to the "new" value. * This allows updating the delay applied to some operation while keeping some guarantees. * * In particular, the {update} function guarantees that if the delay is reduced, the old delay still applies for * some time. For example if the delay is currently 7 days to do an upgrade, the admin should not be able to set * the delay to 0 and upgrade immediately. If the admin wants to reduce the delay, the old delay (7 days) should * still apply for some time. * * * The `Delay` type is 112 bits long, and packs the following: * * ``` * | [uint48]: effect date (timepoint) * | | [uint32]: value before (duration) * ↓ ↓ ↓ [uint32]: value after (duration) * 0xAAAAAAAAAAAABBBBBBBBCCCCCCCC * ``` * * NOTE: The {get} and {withUpdate} functions operate using timestamps. Block number based delays are not currently * supported. */ type Delay is uint112; /** * @dev Wrap a duration into a Delay to add the one-step "update in the future" feature */ function toDelay(uint32 duration) internal pure returns (Delay) { return Delay.wrap(duration); } /** * @dev Get the value at a given timepoint plus the pending value and effect timepoint if there is a scheduled * change after this timepoint. If the effect timepoint is 0, then the pending value should not be considered. */ function _getFullAt( Delay self, uint48 timepoint ) private pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) { (valueBefore, valueAfter, effect) = self.unpack(); return effect <= timepoint ? (valueAfter, 0, 0) : (valueBefore, valueAfter, effect); } /** * @dev Get the current value plus the pending value and effect timepoint if there is a scheduled change. If the * effect timepoint is 0, then the pending value should not be considered. */ function getFull(Delay self) internal view returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) { return _getFullAt(self, timestamp()); } /** * @dev Get the current value. */ function get(Delay self) internal view returns (uint32) { (uint32 delay, , ) = self.getFull(); return delay; } /** * @dev Update a Delay object so that it takes a new duration after a timepoint that is automatically computed to * enforce the old delay at the moment of the update. Returns the updated Delay object and the timestamp when the * new delay becomes effective. */ function withUpdate( Delay self, uint32 newValue, uint32 minSetback ) internal view returns (Delay updatedDelay, uint48 effect) { uint32 value = self.get(); uint32 setback = uint32(Math.max(minSetback, value > newValue ? value - newValue : 0)); effect = timestamp() + setback; return (pack(value, newValue, effect), effect); } /** * @dev Split a delay into its components: valueBefore, valueAfter and effect (transition timepoint). */ function unpack(Delay self) internal pure returns (uint32 valueBefore, uint32 valueAfter, uint48 effect) { uint112 raw = Delay.unwrap(self); valueAfter = uint32(raw); valueBefore = uint32(raw >> 32); effect = uint48(raw >> 64); return (valueBefore, valueAfter, effect); } /** * @dev pack the components into a Delay object. */ function pack(uint32 valueBefore, uint32 valueAfter, uint48 effect) internal pure returns (Delay) { return Delay.wrap((uint112(effect) << 64) | (uint112(valueBefore) << 32) | uint112(valueAfter)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/Math.sol) pragma solidity ^0.8.20; import {Panic} from "../Panic.sol"; import {SafeCast} from "./SafeCast.sol"; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an success flag (no overflow). */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an success flag (no overflow). */ function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an success flag (no overflow). */ function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a success flag (no division by zero). */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero). */ function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant. * * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone. * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute * one branch when needed, making this function more expensive. */ function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) { unchecked { // branchless ternary works because: // b ^ (a ^ b) == a // b ^ 0 == b return b ^ ((a ^ b) * SafeCast.toUint(condition)); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return ternary(a > b, a, b); } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return ternary(a < b, a, b); } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. Panic.panic(Panic.DIVISION_BY_ZERO); } // The following calculation ensures accurate ceiling division without overflow. // Since a is non-zero, (a - 1) / b will not overflow. // The largest possible result occurs when (a - 1) / b is type(uint256).max, // but the largest value we can obtain is type(uint256).max - 1, which happens // when a = type(uint256).max and b = 1. unchecked { return SafeCast.toUint(a > 0) * ((a - 1) / b + 1); } } /** * @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * * Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2²⁵⁶ and mod 2²⁵⁶ - 1, then use // the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2²⁵⁶ + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2²⁵⁶. Also prevents denominator == 0. if (denominator <= prod1) { Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW)); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2²⁵⁶ / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such // that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv ≡ 1 mod 2⁴. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2⁸ inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶ inverse *= 2 - denominator * inverse; // inverse mod 2³² inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴ inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸ inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶ // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2²⁵⁶. Since the preconditions guarantee that the outcome is // less than 2²⁵⁶, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @dev Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0); } /** * @dev Calculate the modular multiplicative inverse of a number in Z/nZ. * * If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0. * If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible. * * If the input value is not inversible, 0 is returned. * * NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the * inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}. */ function invMod(uint256 a, uint256 n) internal pure returns (uint256) { unchecked { if (n == 0) return 0; // The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version) // Used to compute integers x and y such that: ax + ny = gcd(a, n). // When the gcd is 1, then the inverse of a modulo n exists and it's x. // ax + ny = 1 // ax = 1 + (-y)n // ax ≡ 1 (mod n) # x is the inverse of a modulo n // If the remainder is 0 the gcd is n right away. uint256 remainder = a % n; uint256 gcd = n; // Therefore the initial coefficients are: // ax + ny = gcd(a, n) = n // 0a + 1n = n int256 x = 0; int256 y = 1; while (remainder != 0) { uint256 quotient = gcd / remainder; (gcd, remainder) = ( // The old remainder is the next gcd to try. remainder, // Compute the next remainder. // Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd // where gcd is at most n (capped to type(uint256).max) gcd - remainder * quotient ); (x, y) = ( // Increment the coefficient of a. y, // Decrement the coefficient of n. // Can overflow, but the result is casted to uint256 so that the // next value of y is "wrapped around" to a value between 0 and n - 1. x - y * int256(quotient) ); } if (gcd != 1) return 0; // No inverse exists. return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative. } } /** * @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`. * * From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is * prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that * `a**(p-2)` is the modular multiplicative inverse of a in Fp. * * NOTE: this function does NOT check that `p` is a prime greater than `2`. */ function invModPrime(uint256 a, uint256 p) internal view returns (uint256) { unchecked { return Math.modExp(a, p - 2, p); } } /** * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m) * * Requirements: * - modulus can't be zero * - underlying staticcall to precompile must succeed * * IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make * sure the chain you're using it on supports the precompiled contract for modular exponentiation * at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, * the underlying function will succeed given the lack of a revert, but the result may be incorrectly * interpreted as 0. */ function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) { (bool success, uint256 result) = tryModExp(b, e, m); if (!success) { Panic.panic(Panic.DIVISION_BY_ZERO); } return result; } /** * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m). * It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying * to operate modulo 0 or if the underlying precompile reverted. * * IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain * you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in * https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack * of a revert, but the result may be incorrectly interpreted as 0. */ function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) { if (m == 0) return (false, 0); assembly ("memory-safe") { let ptr := mload(0x40) // | Offset | Content | Content (Hex) | // |-----------|------------|--------------------------------------------------------------------| // | 0x00:0x1f | size of b | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x20:0x3f | size of e | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x40:0x5f | size of m | 0x0000000000000000000000000000000000000000000000000000000000000020 | // | 0x60:0x7f | value of b | 0x<.............................................................b> | // | 0x80:0x9f | value of e | 0x<.............................................................e> | // | 0xa0:0xbf | value of m | 0x<.............................................................m> | mstore(ptr, 0x20) mstore(add(ptr, 0x20), 0x20) mstore(add(ptr, 0x40), 0x20) mstore(add(ptr, 0x60), b) mstore(add(ptr, 0x80), e) mstore(add(ptr, 0xa0), m) // Given the result < m, it's guaranteed to fit in 32 bytes, // so we can use the memory scratch space located at offset 0. success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20) result := mload(0x00) } } /** * @dev Variant of {modExp} that supports inputs of arbitrary length. */ function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) { (bool success, bytes memory result) = tryModExp(b, e, m); if (!success) { Panic.panic(Panic.DIVISION_BY_ZERO); } return result; } /** * @dev Variant of {tryModExp} that supports inputs of arbitrary length. */ function tryModExp( bytes memory b, bytes memory e, bytes memory m ) internal view returns (bool success, bytes memory result) { if (_zeroBytes(m)) return (false, new bytes(0)); uint256 mLen = m.length; // Encode call args in result and move the free memory pointer result = abi.encodePacked(b.length, e.length, mLen, b, e, m); assembly ("memory-safe") { let dataPtr := add(result, 0x20) // Write result on top of args to avoid allocating extra memory. success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen) // Overwrite the length. // result.length > returndatasize() is guaranteed because returndatasize() == m.length mstore(result, mLen) // Set the memory pointer after the returned data. mstore(0x40, add(dataPtr, mLen)) } } /** * @dev Returns whether the provided byte array is zero. */ function _zeroBytes(bytes memory byteArray) private pure returns (bool) { for (uint256 i = 0; i < byteArray.length; ++i) { if (byteArray[i] != 0) { return false; } } return true; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * This method is based on Newton's method for computing square roots; the algorithm is restricted to only * using integer operations. */ function sqrt(uint256 a) internal pure returns (uint256) { unchecked { // Take care of easy edge cases when a == 0 or a == 1 if (a <= 1) { return a; } // In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a // sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between // the current value as `ε_n = | x_n - sqrt(a) |`. // // For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root // of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is // bigger than any uint256. // // By noticing that // `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)` // we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar // to the msb function. uint256 aa = a; uint256 xn = 1; if (aa >= (1 << 128)) { aa >>= 128; xn <<= 64; } if (aa >= (1 << 64)) { aa >>= 64; xn <<= 32; } if (aa >= (1 << 32)) { aa >>= 32; xn <<= 16; } if (aa >= (1 << 16)) { aa >>= 16; xn <<= 8; } if (aa >= (1 << 8)) { aa >>= 8; xn <<= 4; } if (aa >= (1 << 4)) { aa >>= 4; xn <<= 2; } if (aa >= (1 << 2)) { xn <<= 1; } // We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1). // // We can refine our estimation by noticing that the middle of that interval minimizes the error. // If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2). // This is going to be our x_0 (and ε_0) xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2) // From here, Newton's method give us: // x_{n+1} = (x_n + a / x_n) / 2 // // One should note that: // x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a // = ((x_n² + a) / (2 * x_n))² - a // = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a // = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²) // = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²) // = (x_n² - a)² / (2 * x_n)² // = ((x_n² - a) / (2 * x_n))² // ≥ 0 // Which proves that for all n ≥ 1, sqrt(a) ≤ x_n // // This gives us the proof of quadratic convergence of the sequence: // ε_{n+1} = | x_{n+1} - sqrt(a) | // = | (x_n + a / x_n) / 2 - sqrt(a) | // = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) | // = | (x_n - sqrt(a))² / (2 * x_n) | // = | ε_n² / (2 * x_n) | // = ε_n² / | (2 * x_n) | // // For the first iteration, we have a special case where x_0 is known: // ε_1 = ε_0² / | (2 * x_0) | // ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2))) // ≤ 2**(2*e-4) / (3 * 2**(e-1)) // ≤ 2**(e-3) / 3 // ≤ 2**(e-3-log2(3)) // ≤ 2**(e-4.5) // // For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n: // ε_{n+1} = ε_n² / | (2 * x_n) | // ≤ (2**(e-k))² / (2 * 2**(e-1)) // ≤ 2**(2*e-2*k) / 2**e // ≤ 2**(e-2*k) xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5) -- special case, see above xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9) -- general case with k = 4.5 xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18) -- general case with k = 9 xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36) -- general case with k = 18 xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72) -- general case with k = 36 xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144) -- general case with k = 72 // Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision // ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either // sqrt(a) or sqrt(a) + 1. return xn - SafeCast.toUint(xn > a / xn); } } /** * @dev Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; uint256 exp; unchecked { exp = 128 * SafeCast.toUint(value > (1 << 128) - 1); value >>= exp; result += exp; exp = 64 * SafeCast.toUint(value > (1 << 64) - 1); value >>= exp; result += exp; exp = 32 * SafeCast.toUint(value > (1 << 32) - 1); value >>= exp; result += exp; exp = 16 * SafeCast.toUint(value > (1 << 16) - 1); value >>= exp; result += exp; exp = 8 * SafeCast.toUint(value > (1 << 8) - 1); value >>= exp; result += exp; exp = 4 * SafeCast.toUint(value > (1 << 4) - 1); value >>= exp; result += exp; exp = 2 * SafeCast.toUint(value > (1 << 2) - 1); value >>= exp; result += exp; result += SafeCast.toUint(value > 1); } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; uint256 isGt; unchecked { isGt = SafeCast.toUint(value > (1 << 128) - 1); value >>= isGt * 128; result += isGt * 16; isGt = SafeCast.toUint(value > (1 << 64) - 1); value >>= isGt * 64; result += isGt * 8; isGt = SafeCast.toUint(value > (1 << 32) - 1); value >>= isGt * 32; result += isGt * 4; isGt = SafeCast.toUint(value > (1 << 16) - 1); value >>= isGt * 16; result += isGt * 2; result += SafeCast.toUint(value > (1 << 8) - 1); } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/MessageHashUtils.sol) pragma solidity ^0.8.20; import {Strings} from "../Strings.sol"; /** * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing. * * The library provides methods for generating a hash of a message that conforms to the * https://eips.ethereum.org/EIPS/eip-191[ERC-191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712] * specifications. */ library MessageHashUtils { /** * @dev Returns the keccak256 digest of an ERC-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing a bytes32 `messageHash` with * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with * keccak256, although any bytes32 value can be safely used because the final digest will * be re-hashed. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) { assembly ("memory-safe") { mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20) } } /** * @dev Returns the keccak256 digest of an ERC-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing an arbitrary `message` with * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) { return keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message)); } /** * @dev Returns the keccak256 digest of an ERC-191 signed data with version * `0x00` (data with intended validator). * * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended * `validator` address. Then hashing the result. * * See {ECDSA-recover}. */ function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) { return keccak256(abi.encodePacked(hex"19_00", validator, data)); } /** * @dev Returns the keccak256 digest of an EIP-712 typed data (ERC-191 version `0x01`). * * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with * `\x19\x01` and hashing the result. It corresponds to the hash signed by the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712. * * See {ECDSA-recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) { assembly ("memory-safe") { let ptr := mload(0x40) mstore(ptr, hex"19_01") mstore(add(ptr, 0x02), domainSeparator) mstore(add(ptr, 0x22), structHash) digest := keccak256(ptr, 0x42) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/ShortStrings.sol) pragma solidity ^0.8.20; import {StorageSlot} from "./StorageSlot.sol"; // | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA | // | length | 0x BB | type ShortString is bytes32; /** * @dev This library provides functions to convert short memory strings * into a `ShortString` type that can be used as an immutable variable. * * Strings of arbitrary length can be optimized using this library if * they are short enough (up to 31 bytes) by packing them with their * length (1 byte) in a single EVM word (32 bytes). Additionally, a * fallback mechanism can be used for every other case. * * Usage example: * * ```solidity * contract Named { * using ShortStrings for *; * * ShortString private immutable _name; * string private _nameFallback; * * constructor(string memory contractName) { * _name = contractName.toShortStringWithFallback(_nameFallback); * } * * function name() external view returns (string memory) { * return _name.toStringWithFallback(_nameFallback); * } * } * ``` */ library ShortStrings { // Used as an identifier for strings longer than 31 bytes. bytes32 private constant FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF; error StringTooLong(string str); error InvalidShortString(); /** * @dev Encode a string of at most 31 chars into a `ShortString`. * * This will trigger a `StringTooLong` error is the input string is too long. */ function toShortString(string memory str) internal pure returns (ShortString) { bytes memory bstr = bytes(str); if (bstr.length > 31) { revert StringTooLong(str); } return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length)); } /** * @dev Decode a `ShortString` back to a "normal" string. */ function toString(ShortString sstr) internal pure returns (string memory) { uint256 len = byteLength(sstr); // using `new string(len)` would work locally but is not memory safe. string memory str = new string(32); assembly ("memory-safe") { mstore(str, len) mstore(add(str, 0x20), sstr) } return str; } /** * @dev Return the length of a `ShortString`. */ function byteLength(ShortString sstr) internal pure returns (uint256) { uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF; if (result > 31) { revert InvalidShortString(); } return result; } /** * @dev Encode a string into a `ShortString`, or write it to storage if it is too long. */ function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) { if (bytes(value).length < 32) { return toShortString(value); } else { StorageSlot.getStringSlot(store).value = value; return ShortString.wrap(FALLBACK_SENTINEL); } } /** * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}. */ function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return toString(value); } else { return store; } } /** * @dev Return the length of a string that was encoded to `ShortString` or written to storage using * {setWithFallback}. * * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of * actual characters as the UTF-8 encoding of a single character can span over multiple bytes. */ function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return byteLength(value); } else { return bytes(store).length; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol) pragma solidity ^0.8.20; interface IERC5267 { /** * @dev MAY be emitted to signal that the domain could have changed. */ event EIP712DomainChanged(); /** * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712 * signature. */ function eip712Domain() external view returns ( bytes1 fields, string memory name, string memory version, uint256 chainId, address verifyingContract, bytes32 salt, uint256[] memory extensions ); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (governance/utils/IVotes.sol) pragma solidity ^0.8.20; /** * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts. */ interface IVotes { /** * @dev The signature used has expired. */ error VotesExpiredSignature(uint256 expiry); /** * @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 voting units. */ event DelegateVotesChanged(address indexed delegate, uint256 previousVotes, uint256 newVotes); /** * @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 a specific moment in the past. If the `clock()` is * configured to use block numbers, this will return the value at the end of the corresponding block. */ function getPastVotes(address account, uint256 timepoint) external view returns (uint256); /** * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is * configured to use block numbers, this will return the value at the end of the corresponding block. * * 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 timepoint) 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 v5.0.0) (interfaces/IERC6372.sol) pragma solidity ^0.8.20; interface IERC6372 { /** * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting). */ function clock() external view returns (uint48); /** * @dev Description of the clock */ // solhint-disable-next-line func-name-mixedcase function CLOCK_MODE() external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol) pragma solidity ^0.8.20; /** * @dev Helper library for emitting standardized panic codes. * * ```solidity * contract Example { * using Panic for uint256; * * // Use any of the declared internal constants * function foo() { Panic.GENERIC.panic(); } * * // Alternatively * function foo() { Panic.panic(Panic.GENERIC); } * } * ``` * * Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil]. * * _Available since v5.1._ */ // slither-disable-next-line unused-state library Panic { /// @dev generic / unspecified error uint256 internal constant GENERIC = 0x00; /// @dev used by the assert() builtin uint256 internal constant ASSERT = 0x01; /// @dev arithmetic underflow or overflow uint256 internal constant UNDER_OVERFLOW = 0x11; /// @dev division or modulo by zero uint256 internal constant DIVISION_BY_ZERO = 0x12; /// @dev enum conversion error uint256 internal constant ENUM_CONVERSION_ERROR = 0x21; /// @dev invalid encoding in storage uint256 internal constant STORAGE_ENCODING_ERROR = 0x22; /// @dev empty array pop uint256 internal constant EMPTY_ARRAY_POP = 0x31; /// @dev array out of bounds access uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32; /// @dev resource error (too large allocation or too large array) uint256 internal constant RESOURCE_ERROR = 0x41; /// @dev calling invalid internal function uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51; /// @dev Reverts with a panic code. Recommended to use with /// the internal constants with predefined codes. function panic(uint256 code) internal pure { assembly ("memory-safe") { mstore(0x00, 0x4e487b71) mstore(0x20, code) revert(0x1c, 0x24) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Strings.sol) pragma solidity ^0.8.20; import {Math} from "./math/Math.sol"; import {SignedMath} from "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @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; assembly ("memory-safe") { ptr := add(buffer, add(32, length)) } while (true) { ptr--; assembly ("memory-safe") { mstore8(ptr, byte(mod(value, 10), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { uint256 localValue = value; 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] = HEX_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal * representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH); } /** * @dev Converts an `address` with fixed length of 20 bytes to its checksummed ASCII `string` hexadecimal * representation, according to EIP-55. */ function toChecksumHexString(address addr) internal pure returns (string memory) { bytes memory buffer = bytes(toHexString(addr)); // hash the hex part of buffer (skip length + 2 bytes, length 40) uint256 hashValue; assembly ("memory-safe") { hashValue := shr(96, keccak256(add(buffer, 0x22), 40)) } for (uint256 i = 41; i > 1; --i) { // possible values for buffer[i] are 48 (0) to 57 (9) and 97 (a) to 102 (f) if (hashValue & 0xf > 7 && uint8(buffer[i]) > 96) { // case shift by xoring with 0x20 buffer[i] ^= 0x20; } hashValue >>= 4; } return string(buffer); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.20; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC-1967 implementation slot: * ```solidity * contract ERC1967 { * // Define the slot. Alternatively, use the SlotDerivation library to derive the slot. * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(newImplementation.code.length > 0); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * TIP: Consider using this library along with {SlotDerivation}. */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct Int256Slot { int256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Int256Slot` with member `value` located at `slot`. */ function getInt256Slot(bytes32 slot) internal pure returns (Int256Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { assembly ("memory-safe") { r.slot := store.slot } } /** * @dev Returns a `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { assembly ("memory-safe") { r.slot := store.slot } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.20; import {SafeCast} from "./SafeCast.sol"; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant. * * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone. * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute * one branch when needed, making this function more expensive. */ function ternary(bool condition, int256 a, int256 b) internal pure returns (int256) { unchecked { // branchless ternary works because: // b ^ (a ^ b) == a // b ^ 0 == b return b ^ ((a ^ b) * int256(SafeCast.toUint(condition))); } } /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return ternary(a > b, a, b); } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return ternary(a < b, a, b); } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // Formula from the "Bit Twiddling Hacks" by Sean Eron Anderson. // Since `n` is a signed integer, the generated bytecode will use the SAR opcode to perform the right shift, // taking advantage of the most significant (or "sign" bit) in two's complement representation. // This opcode adds new most significant bits set to the value of the previous most significant bit. As a result, // the mask will either be `bytes32(0)` (if n is positive) or `~bytes32(0)` (if n is negative). int256 mask = n >> 255; // A `bytes32(0)` mask leaves the input unchanged, while a `~bytes32(0)` mask complements it. return uint256((n + mask) ^ mask); } } }
{ "remappings": [ "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/", "@uniswap/v3-core/=lib/v3-core/", "@solady/=lib/optimism/packages/contracts-bedrock/lib/solady/src/", "@solady-v0.0.245/=lib/optimism/packages/contracts-bedrock/lib/solady/src/", "ds-test/=lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/", "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/", "forge-std/=lib/forge-std/src/", "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/", "openzeppelin-contracts/=lib/openzeppelin-contracts/", "solady/=lib/solady/src/", "v3-core/=lib/v3-core/" ], "optimizer": { "enabled": true, "runs": 200 }, "metadata": { "useLiteralContent": false, "bytecodeHash": "ipfs", "appendCBOR": true }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "cancun", "viaIR": true, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"uint256","name":"maxSupply_","type":"uint256"},{"internalType":"address","name":"deployer_","type":"address"},{"internalType":"uint256","name":"fid_","type":"uint256"},{"internalType":"string","name":"image_","type":"string"},{"internalType":"string","name":"castHash_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"CheckpointUnorderedInsertion","type":"error"},{"inputs":[],"name":"ECDSAInvalidSignature","type":"error"},{"inputs":[{"internalType":"uint256","name":"length","type":"uint256"}],"name":"ECDSAInvalidSignatureLength","type":"error"},{"inputs":[{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"ECDSAInvalidSignatureS","type":"error"},{"inputs":[{"internalType":"uint256","name":"increasedSupply","type":"uint256"},{"internalType":"uint256","name":"cap","type":"uint256"}],"name":"ERC20ExceededSafeSupply","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC20InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC20InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC20InvalidSender","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"}],"name":"ERC20InvalidSpender","type":"error"},{"inputs":[{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"ERC2612ExpiredSignature","type":"error"},{"inputs":[{"internalType":"address","name":"signer","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC2612InvalidSigner","type":"error"},{"inputs":[{"internalType":"uint256","name":"timepoint","type":"uint256"},{"internalType":"uint48","name":"clock","type":"uint48"}],"name":"ERC5805FutureLookup","type":"error"},{"inputs":[],"name":"ERC6372InconsistentClock","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"currentNonce","type":"uint256"}],"name":"InvalidAccountNonce","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[],"name":"NotDeployer","type":"error"},{"inputs":[{"internalType":"uint8","name":"bits","type":"uint8"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"SafeCastOverflowedUintDowncast","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"inputs":[{"internalType":"uint256","name":"expiry","type":"uint256"}],"name":"VotesExpiredSignature","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","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":"previousVotes","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newVotes","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"CLOCK_MODE","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"castHash","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint32","name":"pos","type":"uint32"}],"name":"checkpoints","outputs":[{"components":[{"internalType":"uint48","name":"_key","type":"uint48"},{"internalType":"uint208","name":"_value","type":"uint208"}],"internalType":"struct Checkpoints.Checkpoint208","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"clock","outputs":[{"internalType":"uint48","name":"","type":"uint48"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"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":[],"name":"deployer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fid","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"timepoint","type":"uint256"}],"name":"getPastTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"timepoint","type":"uint256"}],"name":"getPastVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"image","outputs":[{"internalType":"string","name":"","type":"string"}],"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":"address","name":"account","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","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":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"image_","type":"string"}],"name":"updateImage","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] : name_ (string): Alphaca
Arg [1] : symbol_ (string): ALPHACA
Arg [2] : maxSupply_ (uint256): 100000000000000000000000000000
Arg [3] : deployer_ (address): 0x68f999052b39184e89cC7C2E56Ad8eFCa5b9c247
Arg [4] : fid_ (uint256): 1021663
Arg [5] : image_ (string): https://wqwoggfcacagsgwlxjhs.supabase.co/storage/v1/render/image/public/tokens/1742154174314-lmeny3ovgb9.jpg?width=500&height=500
Arg [6] : castHash_ (string):
-----Encoded View---------------
18 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [2] : 0000000000000000000000000000000000000001431e0fae6d7217caa0000000
Arg [3] : 00000000000000000000000068f999052b39184e89cc7c2e56ad8efca5b9c247
Arg [4] : 00000000000000000000000000000000000000000000000000000000000f96df
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000160
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000220
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [8] : 416c706861636100000000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [10] : 414c504841434100000000000000000000000000000000000000000000000000
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000081
Arg [12] : 68747470733a2f2f7771776f67676663616361677367776c786a68732e737570
Arg [13] : 61626173652e636f2f73746f726167652f76312f72656e6465722f696d616765
Arg [14] : 2f7075626c69632f746f6b656e732f313734323135343137343331342d6c6d65
Arg [15] : 6e79336f766762392e6a70673f77696474683d353030266865696768743d3530
Arg [16] : 3000000000000000000000000000000000000000000000000000000000000000
Arg [17] : 0000000000000000000000000000000000000000000000000000000000000000
Loading...
Loading
Loading...
Loading
Multichain Portfolio | 34 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|
Loading...
Loading
Loading...
Loading
[ Download: CSV Export ]
[ Download: CSV Export ]
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.