Source Code
Overview
ETH Balance
0 ETH
ETH Value
$0.00Multichain Info
N/A
Transaction Hash |
Method
|
Block
|
From
|
To
|
|||||
---|---|---|---|---|---|---|---|---|---|
Advanced mode: Intended for advanced users or developers and will display all Internal Transactions including zero value transfers.
Latest 25 internal transactions (View All)
Advanced mode:
Parent Transaction Hash | Block | From | To | ||||
---|---|---|---|---|---|---|---|
12849432 | 53 mins ago | 0 ETH | |||||
12844686 | 2 hrs ago | 0 ETH | |||||
12844662 | 2 hrs ago | 0 ETH | |||||
12833155 | 5 hrs ago | 0 ETH | |||||
12828304 | 6 hrs ago | 0 ETH | |||||
12827849 | 6 hrs ago | 0 ETH | |||||
12827661 | 6 hrs ago | 0 ETH | |||||
12827648 | 6 hrs ago | 0 ETH | |||||
12826433 | 7 hrs ago | 0 ETH | |||||
12822969 | 8 hrs ago | 0 ETH | |||||
12810806 | 11 hrs ago | 0 ETH | |||||
12810796 | 11 hrs ago | 0 ETH | |||||
12809489 | 11 hrs ago | 0 ETH | |||||
12786264 | 18 hrs ago | 0 ETH | |||||
12778558 | 20 hrs ago | 0 ETH | |||||
12773709 | 21 hrs ago | 0 ETH | |||||
12765111 | 24 hrs ago | 0 ETH | |||||
12758954 | 26 hrs ago | 0 ETH | |||||
12758300 | 26 hrs ago | 0 ETH | |||||
12752051 | 27 hrs ago | 0 ETH | |||||
12752033 | 27 hrs ago | 0 ETH | |||||
12751952 | 27 hrs ago | 0 ETH | |||||
12748407 | 28 hrs ago | 0 ETH | |||||
12746174 | 29 hrs ago | 0 ETH | |||||
12746161 | 29 hrs ago | 0 ETH |
Loading...
Loading
Contract Source Code Verified (Exact Match)
Contract Name:
Spectra
Compiler Version
v0.8.28+commit.7893614a
Optimization Enabled:
No with 200 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity 0.8.28; import {ISpectra} from "./interfaces/ISpectra.sol"; import {AccessManagedUpgradeable} from "@openzeppelin-upgradeable/contracts/access/manager/AccessManagedUpgradeable.sol"; import {ERC20Upgradeable} from "@openzeppelin-upgradeable/contracts/token/ERC20/ERC20Upgradeable.sol"; import {ERC20PermitUpgradeable} from "@openzeppelin-upgradeable/contracts/token/ERC20/extensions/ERC20PermitUpgradeable.sol"; import {ERC20BurnableUpgradeable} from "@openzeppelin-upgradeable/contracts/token/ERC20/extensions/ERC20BurnableUpgradeable.sol"; /// @title Spectra Token /// @author spectra.finance contract Spectra is ISpectra, ERC20PermitUpgradeable, AccessManagedUpgradeable, ERC20BurnableUpgradeable { constructor() { _disableInitializers(); } function initialize(address _initialAuthority) public initializer { __ERC20_init("Spectra Token", "SPECTRA"); __ERC20Permit_init("Spectra Token"); __AccessManaged_init(_initialAuthority); __ERC20Burnable_init(); } function mint(address account, uint256 amount) external restricted returns (bool) { _mint(account, amount); return true; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; interface ISpectra is IERC20 { /// @notice Mint an amount of tokens to an account /// Only callable by MINTER role /// @return True if success function mint(address account, uint256 amount) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (access/manager/AccessManaged.sol) pragma solidity ^0.8.20; import {IAuthority} from "@openzeppelin/contracts/access/manager/IAuthority.sol"; import {AuthorityUtils} from "@openzeppelin/contracts/access/manager/AuthorityUtils.sol"; import {IAccessManager} from "@openzeppelin/contracts/access/manager/IAccessManager.sol"; import {IAccessManaged} from "@openzeppelin/contracts/access/manager/IAccessManaged.sol"; import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol"; import {Initializable} from "../../proxy/utils/Initializable.sol"; /** * @dev This contract module makes available a {restricted} modifier. Functions decorated with this modifier will be * permissioned according to an "authority": a contract like {AccessManager} that follows the {IAuthority} interface, * implementing a policy that allows certain callers to access certain functions. * * IMPORTANT: The `restricted` modifier should never be used on `internal` functions, judiciously used in `public` * functions, and ideally only used in `external` functions. See {restricted}. */ abstract contract AccessManagedUpgradeable is Initializable, ContextUpgradeable, IAccessManaged { /// @custom:storage-location erc7201:openzeppelin.storage.AccessManaged struct AccessManagedStorage { address _authority; bool _consumingSchedule; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessManaged")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant AccessManagedStorageLocation = 0xf3177357ab46d8af007ab3fdb9af81da189e1068fefdc0073dca88a2cab40a00; function _getAccessManagedStorage() private pure returns (AccessManagedStorage storage $) { assembly { $.slot := AccessManagedStorageLocation } } /** * @dev Initializes the contract connected to an initial authority. */ function __AccessManaged_init(address initialAuthority) internal onlyInitializing { __AccessManaged_init_unchained(initialAuthority); } function __AccessManaged_init_unchained(address initialAuthority) internal onlyInitializing { _setAuthority(initialAuthority); } /** * @dev Restricts access to a function as defined by the connected Authority for this contract and the * caller and selector of the function that entered the contract. * * [IMPORTANT] * ==== * In general, this modifier should only be used on `external` functions. It is okay to use it on `public` * functions that are used as external entry points and are not called internally. Unless you know what you're * doing, it should never be used on `internal` functions. Failure to follow these rules can have critical security * implications! This is because the permissions are determined by the function that entered the contract, i.e. the * function at the bottom of the call stack, and not the function where the modifier is visible in the source code. * ==== * * [WARNING] * ==== * Avoid adding this modifier to the https://docs.soliditylang.org/en/v0.8.20/contracts.html#receive-ether-function[`receive()`] * function or the https://docs.soliditylang.org/en/v0.8.20/contracts.html#fallback-function[`fallback()`]. These * functions are the only execution paths where a function selector cannot be unambiguously determined from the calldata * since the selector defaults to `0x00000000` in the `receive()` function and similarly in the `fallback()` function * if no calldata is provided. (See {_checkCanCall}). * * The `receive()` function will always panic whereas the `fallback()` may panic depending on the calldata length. * ==== */ modifier restricted() { _checkCanCall(_msgSender(), _msgData()); _; } /// @inheritdoc IAccessManaged function authority() public view virtual returns (address) { AccessManagedStorage storage $ = _getAccessManagedStorage(); return $._authority; } /// @inheritdoc IAccessManaged function setAuthority(address newAuthority) public virtual { address caller = _msgSender(); if (caller != authority()) { revert AccessManagedUnauthorized(caller); } if (newAuthority.code.length == 0) { revert AccessManagedInvalidAuthority(newAuthority); } _setAuthority(newAuthority); } /// @inheritdoc IAccessManaged function isConsumingScheduledOp() public view returns (bytes4) { AccessManagedStorage storage $ = _getAccessManagedStorage(); return $._consumingSchedule ? this.isConsumingScheduledOp.selector : bytes4(0); } /** * @dev Transfers control to a new authority. Internal function with no access restriction. Allows bypassing the * permissions set by the current authority. */ function _setAuthority(address newAuthority) internal virtual { AccessManagedStorage storage $ = _getAccessManagedStorage(); $._authority = newAuthority; emit AuthorityUpdated(newAuthority); } /** * @dev Reverts if the caller is not allowed to call the function identified by a selector. Panics if the calldata * is less than 4 bytes long. */ function _checkCanCall(address caller, bytes calldata data) internal virtual { AccessManagedStorage storage $ = _getAccessManagedStorage(); (bool immediate, uint32 delay) = AuthorityUtils.canCallWithDelay( authority(), caller, address(this), bytes4(data[0:4]) ); if (!immediate) { if (delay > 0) { $._consumingSchedule = true; IAccessManager(authority()).consumeScheduledOp(caller, data); $._consumingSchedule = false; } else { revert AccessManagedUnauthorized(caller); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.20; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ```solidity * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Storage of the initializable contract. * * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions * when using with upgradeable contracts. * * @custom:storage-location erc7201:openzeppelin.storage.Initializable */ struct InitializableStorage { /** * @dev Indicates that the contract has been initialized. */ uint64 _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool _initializing; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00; /** * @dev The contract is already initialized. */ error InvalidInitialization(); /** * @dev The contract is not initializing. */ error NotInitializing(); /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint64 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. * * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in * production. * * Emits an {Initialized} event. */ modifier initializer() { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); // Cache values to avoid duplicated sloads bool isTopLevelCall = !$._initializing; uint64 initialized = $._initialized; // Allowed calls: // - initialSetup: the contract is not in the initializing state and no previous version was // initialized // - construction: the contract is initialized at version 1 (no reininitialization) and the // current contract is just being deployed bool initialSetup = initialized == 0 && isTopLevelCall; bool construction = initialized == 1 && address(this).code.length == 0; if (!initialSetup && !construction) { revert InvalidInitialization(); } $._initialized = 1; if (isTopLevelCall) { $._initializing = true; } _; if (isTopLevelCall) { $._initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * A reinitializer may be used after the original initialization step. This is essential to configure modules that * are added through upgrades and that require initialization. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. * * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint64 version) { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing || $._initialized >= version) { revert InvalidInitialization(); } $._initialized = version; $._initializing = true; _; $._initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { _checkInitializing(); _; } /** * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}. */ function _checkInitializing() internal view virtual { if (!_isInitializing()) { revert NotInitializing(); } } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing) { revert InvalidInitialization(); } if ($._initialized != type(uint64).max) { $._initialized = type(uint64).max; emit Initialized(type(uint64).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint64) { return _getInitializableStorage()._initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _getInitializableStorage()._initializing; } /** * @dev Returns a pointer to the storage namespace. */ // solhint-disable-next-line var-name-mixedcase function _getInitializableStorage() private pure returns (InitializableStorage storage $) { assembly { $.slot := INITIALIZABLE_STORAGE } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol"; import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol"; import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol"; import {Initializable} from "../../proxy/utils/Initializable.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 ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors { /// @custom:storage-location erc7201:openzeppelin.storage.ERC20 struct ERC20Storage { mapping(address account => uint256) _balances; mapping(address account => mapping(address spender => uint256)) _allowances; uint256 _totalSupply; string _name; string _symbol; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00; function _getERC20Storage() private pure returns (ERC20Storage storage $) { assembly { $.slot := ERC20StorageLocation } } /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing { __ERC20_init_unchained(name_, symbol_); } function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing { ERC20Storage storage $ = _getERC20Storage(); $._name = name_; $._symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual returns (string memory) { ERC20Storage storage $ = _getERC20Storage(); return $._name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual returns (string memory) { ERC20Storage storage $ = _getERC20Storage(); 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) { ERC20Storage storage $ = _getERC20Storage(); return $._totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual returns (uint256) { ERC20Storage storage $ = _getERC20Storage(); 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) { ERC20Storage storage $ = _getERC20Storage(); 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 { ERC20Storage storage $ = _getERC20Storage(); 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 { ERC20Storage storage $ = _getERC20Storage(); 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 v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol) pragma solidity ^0.8.20; import {ERC20Upgradeable} from "../ERC20Upgradeable.sol"; import {ContextUpgradeable} from "../../../utils/ContextUpgradeable.sol"; import {Initializable} from "../../../proxy/utils/Initializable.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 ERC20BurnableUpgradeable is Initializable, ContextUpgradeable, ERC20Upgradeable { function __ERC20Burnable_init() internal onlyInitializing { } function __ERC20Burnable_init_unchained() internal onlyInitializing { } /** * @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 v5.1.0) (token/ERC20/extensions/ERC20Permit.sol) pragma solidity ^0.8.20; import {IERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol"; import {ERC20Upgradeable} from "../ERC20Upgradeable.sol"; import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol"; import {EIP712Upgradeable} from "../../../utils/cryptography/EIP712Upgradeable.sol"; import {NoncesUpgradeable} from "../../../utils/NoncesUpgradeable.sol"; import {Initializable} from "../../../proxy/utils/Initializable.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 ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20Permit, EIP712Upgradeable, NoncesUpgradeable { 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. */ function __ERC20Permit_init(string memory name) internal onlyInitializing { __EIP712_init_unchained(name, "1"); } function __ERC20Permit_init_unchained(string memory) internal onlyInitializing {} /** * @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, NoncesUpgradeable) 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 v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol) pragma solidity ^0.8.20; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Provides tracking nonces for addresses. Nonces will only increment. */ abstract contract NoncesUpgradeable is Initializable { /** * @dev The nonce used for an `account` is not the expected current nonce. */ error InvalidAccountNonce(address account, uint256 currentNonce); /// @custom:storage-location erc7201:openzeppelin.storage.Nonces struct NoncesStorage { mapping(address account => uint256) _nonces; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Nonces")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant NoncesStorageLocation = 0x5ab42ced628888259c08ac98db1eb0cf702fc1501344311d8b100cd1bfe4bb00; function _getNoncesStorage() private pure returns (NoncesStorage storage $) { assembly { $.slot := NoncesStorageLocation } } function __Nonces_init() internal onlyInitializing { } function __Nonces_init_unchained() internal onlyInitializing { } /** * @dev Returns the next unused nonce for an address. */ function nonces(address owner) public view virtual returns (uint256) { NoncesStorage storage $ = _getNoncesStorage(); return $._nonces[owner]; } /** * @dev Consumes a nonce. * * Returns the current value and increments nonce. */ function _useNonce(address owner) internal virtual returns (uint256) { NoncesStorage storage $ = _getNoncesStorage(); // 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) (utils/cryptography/EIP712.sol) pragma solidity ^0.8.20; import {MessageHashUtils} from "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol"; import {IERC5267} from "@openzeppelin/contracts/interfaces/IERC5267.sol"; import {Initializable} from "../../proxy/utils/Initializable.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. */ abstract contract EIP712Upgradeable is Initializable, IERC5267 { bytes32 private constant TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); /// @custom:storage-location erc7201:openzeppelin.storage.EIP712 struct EIP712Storage { /// @custom:oz-renamed-from _HASHED_NAME bytes32 _hashedName; /// @custom:oz-renamed-from _HASHED_VERSION bytes32 _hashedVersion; string _name; string _version; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.EIP712")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant EIP712StorageLocation = 0xa16a46d94261c7517cc8ff89f61c0ce93598e3c849801011dee649a6a557d100; function _getEIP712Storage() private pure returns (EIP712Storage storage $) { assembly { $.slot := EIP712StorageLocation } } /** * @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]. */ function __EIP712_init(string memory name, string memory version) internal onlyInitializing { __EIP712_init_unchained(name, version); } function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing { EIP712Storage storage $ = _getEIP712Storage(); $._name = name; $._version = version; // Reset prior values in storage if upgrading $._hashedName = 0; $._hashedVersion = 0; } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { return _buildDomainSeparator(); } function _buildDomainSeparator() private view returns (bytes32) { return keccak256(abi.encode(TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash(), 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 ) { EIP712Storage storage $ = _getEIP712Storage(); // If the hashed name and version in storage are non-zero, the contract hasn't been properly initialized // and the EIP712 domain is not reliable, as it will be missing name and version. require($._hashedName == 0 && $._hashedVersion == 0, "EIP712: Uninitialized"); return ( hex"0f", // 01111 _EIP712Name(), _EIP712Version(), block.chainid, address(this), bytes32(0), new uint256[](0) ); } /** * @dev The name parameter for the EIP712 domain. * * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs * are a concern. */ function _EIP712Name() internal view virtual returns (string memory) { EIP712Storage storage $ = _getEIP712Storage(); return $._name; } /** * @dev The version parameter for the EIP712 domain. * * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs * are a concern. */ function _EIP712Version() internal view virtual returns (string memory) { EIP712Storage storage $ = _getEIP712Storage(); return $._version; } /** * @dev The hash of the name parameter for the EIP712 domain. * * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Name` instead. */ function _EIP712NameHash() internal view returns (bytes32) { EIP712Storage storage $ = _getEIP712Storage(); string memory name = _EIP712Name(); if (bytes(name).length > 0) { return keccak256(bytes(name)); } else { // If the name is empty, the contract may have been upgraded without initializing the new storage. // We return the name hash in storage if non-zero, otherwise we assume the name is empty by design. bytes32 hashedName = $._hashedName; if (hashedName != 0) { return hashedName; } else { return keccak256(""); } } } /** * @dev The hash of the version parameter for the EIP712 domain. * * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Version` instead. */ function _EIP712VersionHash() internal view returns (bytes32) { EIP712Storage storage $ = _getEIP712Storage(); string memory version = _EIP712Version(); if (bytes(version).length > 0) { return keccak256(bytes(version)); } else { // If the version is empty, the contract may have been upgraded without initializing the new storage. // We return the version hash in storage if non-zero, otherwise we assume the version is empty by design. bytes32 hashedVersion = $._hashedVersion; if (hashedVersion != 0) { return hashedVersion; } else { return keccak256(""); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/manager/AuthorityUtils.sol) pragma solidity ^0.8.20; import {IAuthority} from "./IAuthority.sol"; library AuthorityUtils { /** * @dev Since `AccessManager` implements an extended IAuthority interface, invoking `canCall` with backwards compatibility * for the preexisting `IAuthority` interface requires special care to avoid reverting on insufficient return data. * This helper function takes care of invoking `canCall` in a backwards compatible way without reverting. */ function canCallWithDelay( address authority, address caller, address target, bytes4 selector ) internal view returns (bool immediate, uint32 delay) { (bool success, bytes memory data) = authority.staticcall( abi.encodeCall(IAuthority.canCall, (caller, target, selector)) ); if (success) { if (data.length >= 0x40) { (immediate, delay) = abi.decode(data, (bool, uint32)); } else if (data.length >= 0x20) { immediate = abi.decode(data, (bool)); } } return (immediate, delay); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/manager/IAccessManaged.sol) pragma solidity ^0.8.20; interface IAccessManaged { /** * @dev Authority that manages this contract was updated. */ event AuthorityUpdated(address authority); error AccessManagedUnauthorized(address caller); error AccessManagedRequiredDelay(address caller, uint32 delay); error AccessManagedInvalidAuthority(address authority); /** * @dev Returns the current authority. */ function authority() external view returns (address); /** * @dev Transfers control to a new authority. The caller must be the current authority. */ function setAuthority(address) external; /** * @dev Returns true only in the context of a delayed restricted call, at the moment that the scheduled operation is * being consumed. Prevents denial of service for delayed restricted calls in the case that the contract performs * attacker controlled calls. */ function isConsumingScheduledOp() external view returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (access/manager/IAccessManager.sol) pragma solidity ^0.8.20; import {Time} from "../../utils/types/Time.sol"; interface IAccessManager { /** * @dev A delayed operation was scheduled. */ event OperationScheduled( bytes32 indexed operationId, uint32 indexed nonce, uint48 schedule, address caller, address target, bytes data ); /** * @dev A scheduled operation was executed. */ event OperationExecuted(bytes32 indexed operationId, uint32 indexed nonce); /** * @dev A scheduled operation was canceled. */ event OperationCanceled(bytes32 indexed operationId, uint32 indexed nonce); /** * @dev Informational labelling for a roleId. */ event RoleLabel(uint64 indexed roleId, string label); /** * @dev Emitted when `account` is granted `roleId`. * * NOTE: The meaning of the `since` argument depends on the `newMember` argument. * If the role is granted to a new member, the `since` argument indicates when the account becomes a member of the role, * otherwise it indicates the execution delay for this account and roleId is updated. */ event RoleGranted(uint64 indexed roleId, address indexed account, uint32 delay, uint48 since, bool newMember); /** * @dev Emitted when `account` membership or `roleId` is revoked. Unlike granting, revoking is instantaneous. */ event RoleRevoked(uint64 indexed roleId, address indexed account); /** * @dev Role acting as admin over a given `roleId` is updated. */ event RoleAdminChanged(uint64 indexed roleId, uint64 indexed admin); /** * @dev Role acting as guardian over a given `roleId` is updated. */ event RoleGuardianChanged(uint64 indexed roleId, uint64 indexed guardian); /** * @dev Grant delay for a given `roleId` will be updated to `delay` when `since` is reached. */ event RoleGrantDelayChanged(uint64 indexed roleId, uint32 delay, uint48 since); /** * @dev Target mode is updated (true = closed, false = open). */ event TargetClosed(address indexed target, bool closed); /** * @dev Role required to invoke `selector` on `target` is updated to `roleId`. */ event TargetFunctionRoleUpdated(address indexed target, bytes4 selector, uint64 indexed roleId); /** * @dev Admin delay for a given `target` will be updated to `delay` when `since` is reached. */ event TargetAdminDelayUpdated(address indexed target, uint32 delay, uint48 since); error AccessManagerAlreadyScheduled(bytes32 operationId); error AccessManagerNotScheduled(bytes32 operationId); error AccessManagerNotReady(bytes32 operationId); error AccessManagerExpired(bytes32 operationId); error AccessManagerLockedRole(uint64 roleId); error AccessManagerBadConfirmation(); error AccessManagerUnauthorizedAccount(address msgsender, uint64 roleId); error AccessManagerUnauthorizedCall(address caller, address target, bytes4 selector); error AccessManagerUnauthorizedConsume(address target); error AccessManagerUnauthorizedCancel(address msgsender, address caller, address target, bytes4 selector); error AccessManagerInvalidInitialAdmin(address initialAdmin); /** * @dev Check if an address (`caller`) is authorised to call a given function on a given contract directly (with * no restriction). Additionally, it returns the delay needed to perform the call indirectly through the {schedule} * & {execute} workflow. * * This function is usually called by the targeted contract to control immediate execution of restricted functions. * Therefore we only return true if the call can be performed without any delay. If the call is subject to a * previously set delay (not zero), then the function should return false and the caller should schedule the operation * for future execution. * * If `immediate` is true, the delay can be disregarded and the operation can be immediately executed, otherwise * the operation can be executed if and only if delay is greater than 0. * * NOTE: The IAuthority interface does not include the `uint32` delay. This is an extension of that interface that * is backward compatible. Some contracts may thus ignore the second return argument. In that case they will fail * to identify the indirect workflow, and will consider calls that require a delay to be forbidden. * * NOTE: This function does not report the permissions of the admin functions in the manager itself. These are defined by the * {AccessManager} documentation. */ function canCall( address caller, address target, bytes4 selector ) external view returns (bool allowed, uint32 delay); /** * @dev Expiration delay for scheduled proposals. Defaults to 1 week. * * IMPORTANT: Avoid overriding the expiration with 0. Otherwise every contract proposal will be expired immediately, * disabling any scheduling usage. */ function expiration() external view returns (uint32); /** * @dev Minimum setback for all delay updates, with the exception of execution delays. It * can be increased without setback (and reset via {revokeRole} in the case event of an * accidental increase). Defaults to 5 days. */ function minSetback() external view returns (uint32); /** * @dev Get whether the contract is closed disabling any access. Otherwise role permissions are applied. * * NOTE: When the manager itself is closed, admin functions are still accessible to avoid locking the contract. */ function isTargetClosed(address target) external view returns (bool); /** * @dev Get the role required to call a function. */ function getTargetFunctionRole(address target, bytes4 selector) external view returns (uint64); /** * @dev Get the admin delay for a target contract. Changes to contract configuration are subject to this delay. */ function getTargetAdminDelay(address target) external view returns (uint32); /** * @dev Get the id of the role that acts as an admin for the given role. * * The admin permission is required to grant the role, revoke the role and update the execution delay to execute * an operation that is restricted to this role. */ function getRoleAdmin(uint64 roleId) external view returns (uint64); /** * @dev Get the role that acts as a guardian for a given role. * * The guardian permission allows canceling operations that have been scheduled under the role. */ function getRoleGuardian(uint64 roleId) external view returns (uint64); /** * @dev Get the role current grant delay. * * Its value may change at any point without an event emitted following a call to {setGrantDelay}. * Changes to this value, including effect timepoint are notified in advance by the {RoleGrantDelayChanged} event. */ function getRoleGrantDelay(uint64 roleId) external view returns (uint32); /** * @dev Get the access details for a given account for a given role. These details include the timepoint at which * membership becomes active, and the delay applied to all operation by this user that requires this permission * level. * * Returns: * [0] Timestamp at which the account membership becomes valid. 0 means role is not granted. * [1] Current execution delay for the account. * [2] Pending execution delay for the account. * [3] Timestamp at which the pending execution delay will become active. 0 means no delay update is scheduled. */ function getAccess( uint64 roleId, address account ) external view returns (uint48 since, uint32 currentDelay, uint32 pendingDelay, uint48 effect); /** * @dev Check if a given account currently has the permission level corresponding to a given role. Note that this * permission might be associated with an execution delay. {getAccess} can provide more details. */ function hasRole(uint64 roleId, address account) external view returns (bool isMember, uint32 executionDelay); /** * @dev Give a label to a role, for improved role discoverability by UIs. * * Requirements: * * - the caller must be a global admin * * Emits a {RoleLabel} event. */ function labelRole(uint64 roleId, string calldata label) external; /** * @dev Add `account` to `roleId`, or change its execution delay. * * This gives the account the authorization to call any function that is restricted to this role. An optional * execution delay (in seconds) can be set. If that delay is non 0, the user is required to schedule any operation * that is restricted to members of this role. The user will only be able to execute the operation after the delay has * passed, before it has expired. During this period, admin and guardians can cancel the operation (see {cancel}). * * If the account has already been granted this role, the execution delay will be updated. This update is not * immediate and follows the delay rules. For example, if a user currently has a delay of 3 hours, and this is * called to reduce that delay to 1 hour, the new delay will take some time to take effect, enforcing that any * operation executed in the 3 hours that follows this update was indeed scheduled before this update. * * Requirements: * * - the caller must be an admin for the role (see {getRoleAdmin}) * - granted role must not be the `PUBLIC_ROLE` * * Emits a {RoleGranted} event. */ function grantRole(uint64 roleId, address account, uint32 executionDelay) external; /** * @dev Remove an account from a role, with immediate effect. If the account does not have the role, this call has * no effect. * * Requirements: * * - the caller must be an admin for the role (see {getRoleAdmin}) * - revoked role must not be the `PUBLIC_ROLE` * * Emits a {RoleRevoked} event if the account had the role. */ function revokeRole(uint64 roleId, address account) external; /** * @dev Renounce role permissions for the calling account with immediate effect. If the sender is not in * the role this call has no effect. * * Requirements: * * - the caller must be `callerConfirmation`. * * Emits a {RoleRevoked} event if the account had the role. */ function renounceRole(uint64 roleId, address callerConfirmation) external; /** * @dev Change admin role for a given role. * * Requirements: * * - the caller must be a global admin * * Emits a {RoleAdminChanged} event */ function setRoleAdmin(uint64 roleId, uint64 admin) external; /** * @dev Change guardian role for a given role. * * Requirements: * * - the caller must be a global admin * * Emits a {RoleGuardianChanged} event */ function setRoleGuardian(uint64 roleId, uint64 guardian) external; /** * @dev Update the delay for granting a `roleId`. * * Requirements: * * - the caller must be a global admin * * Emits a {RoleGrantDelayChanged} event. */ function setGrantDelay(uint64 roleId, uint32 newDelay) external; /** * @dev Set the role required to call functions identified by the `selectors` in the `target` contract. * * Requirements: * * - the caller must be a global admin * * Emits a {TargetFunctionRoleUpdated} event per selector. */ function setTargetFunctionRole(address target, bytes4[] calldata selectors, uint64 roleId) external; /** * @dev Set the delay for changing the configuration of a given target contract. * * Requirements: * * - the caller must be a global admin * * Emits a {TargetAdminDelayUpdated} event. */ function setTargetAdminDelay(address target, uint32 newDelay) external; /** * @dev Set the closed flag for a contract. * * Closing the manager itself won't disable access to admin methods to avoid locking the contract. * * Requirements: * * - the caller must be a global admin * * Emits a {TargetClosed} event. */ function setTargetClosed(address target, bool closed) external; /** * @dev Return the timepoint at which a scheduled operation will be ready for execution. This returns 0 if the * operation is not yet scheduled, has expired, was executed, or was canceled. */ function getSchedule(bytes32 id) external view returns (uint48); /** * @dev Return the nonce for the latest scheduled operation with a given id. Returns 0 if the operation has never * been scheduled. */ function getNonce(bytes32 id) external view returns (uint32); /** * @dev Schedule a delayed operation for future execution, and return the operation identifier. It is possible to * choose the timestamp at which the operation becomes executable as long as it satisfies the execution delays * required for the caller. The special value zero will automatically set the earliest possible time. * * Returns the `operationId` that was scheduled. Since this value is a hash of the parameters, it can reoccur when * the same parameters are used; if this is relevant, the returned `nonce` can be used to uniquely identify this * scheduled operation from other occurrences of the same `operationId` in invocations of {execute} and {cancel}. * * Emits a {OperationScheduled} event. * * NOTE: It is not possible to concurrently schedule more than one operation with the same `target` and `data`. If * this is necessary, a random byte can be appended to `data` to act as a salt that will be ignored by the target * contract if it is using standard Solidity ABI encoding. */ function schedule( address target, bytes calldata data, uint48 when ) external returns (bytes32 operationId, uint32 nonce); /** * @dev Execute a function that is delay restricted, provided it was properly scheduled beforehand, or the * execution delay is 0. * * Returns the nonce that identifies the previously scheduled operation that is executed, or 0 if the * operation wasn't previously scheduled (if the caller doesn't have an execution delay). * * Emits an {OperationExecuted} event only if the call was scheduled and delayed. */ function execute(address target, bytes calldata data) external payable returns (uint32); /** * @dev Cancel a scheduled (delayed) operation. Returns the nonce that identifies the previously scheduled * operation that is cancelled. * * Requirements: * * - the caller must be the proposer, a guardian of the targeted function, or a global admin * * Emits a {OperationCanceled} event. */ function cancel(address caller, address target, bytes calldata data) external returns (uint32); /** * @dev Consume a scheduled operation targeting the caller. If such an operation exists, mark it as consumed * (emit an {OperationExecuted} event and clean the state). Otherwise, throw an error. * * This is useful for contract that want to enforce that calls targeting them were scheduled on the manager, * with all the verifications that it implies. * * Emit a {OperationExecuted} event. */ function consumeScheduledOp(address caller, bytes calldata data) external; /** * @dev Hashing function for delayed operations. */ function hashOperation(address caller, address target, bytes calldata data) external view returns (bytes32); /** * @dev Changes the authority of a target managed by this manager instance. * * Requirements: * * - the caller must be a global admin */ function updateAuthority(address target, address newAuthority) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/manager/IAuthority.sol) pragma solidity ^0.8.20; /** * @dev Standard interface for permissioning originally defined in Dappsys. */ interface IAuthority { /** * @dev Returns true if the caller can invoke on a target the function identified by a function selector. */ function canCall(address caller, address target, bytes4 selector) external view returns (bool allowed); }
// 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 v5.1.0) (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) (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 v5.1.0) (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/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/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/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/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 `e_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 e_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 e_n = 2**(e-2). // This is going to be our x_0 (and e_0) xn = (3 * xn) >> 1; // e_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: // e_{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) | // = | e_n² / (2 * x_n) | // = e_n² / | (2 * x_n) | // // For the first iteration, we have a special case where x_0 is known: // e_1 = e_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: // e_{n+1} = e_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; // e_1 := | x_1 - sqrt(a) | = 2**(e-4.5) -- special case, see above xn = (xn + a / xn) >> 1; // e_2 := | x_2 - sqrt(a) | = 2**(e-9) -- general case with k = 4.5 xn = (xn + a / xn) >> 1; // e_3 := | x_3 - sqrt(a) | = 2**(e-18) -- general case with k = 9 xn = (xn + a / xn) >> 1; // e_4 := | x_4 - sqrt(a) | = 2**(e-36) -- general case with k = 18 xn = (xn + a / xn) >> 1; // e_5 := | x_5 - sqrt(a) | = 2**(e-72) -- general case with k = 36 xn = (xn + a / xn) >> 1; // e_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 // e_6 = 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either // sqrt(a) or sqrt(a) + 1. return xn - SafeCast.toUint(xn > a / xn); } } /** * @dev Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; uint256 exp; unchecked { exp = 128 * SafeCast.toUint(value > (1 << 128) - 1); value >>= exp; result += exp; exp = 64 * SafeCast.toUint(value > (1 << 64) - 1); value >>= exp; result += exp; exp = 32 * SafeCast.toUint(value > (1 << 32) - 1); value >>= exp; result += exp; exp = 16 * SafeCast.toUint(value > (1 << 16) - 1); value >>= exp; result += exp; exp = 8 * SafeCast.toUint(value > (1 << 8) - 1); value >>= exp; result += exp; exp = 4 * SafeCast.toUint(value > (1 << 4) - 1); value >>= exp; result += exp; exp = 2 * SafeCast.toUint(value > (1 << 2) - 1); value >>= exp; result += exp; result += SafeCast.toUint(value > 1); } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; uint256 isGt; unchecked { isGt = SafeCast.toUint(value > (1 << 128) - 1); value >>= isGt * 128; result += isGt * 16; isGt = SafeCast.toUint(value > (1 << 64) - 1); value >>= isGt * 64; result += isGt * 8; isGt = SafeCast.toUint(value > (1 << 32) - 1); value >>= isGt * 32; result += isGt * 4; isGt = SafeCast.toUint(value > (1 << 16) - 1); value >>= isGt * 16; result += isGt * 2; result += SafeCast.toUint(value > (1 << 8) - 1); } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol) // This file was procedurally generated from scripts/generate/templates/SafeCast.js. pragma solidity ^0.8.20; /** * @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow * checks. * * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can * easily result in undesired exploitation or bugs, since developers usually * assume that overflows raise errors. `SafeCast` restores this intuition by * reverting the transaction when such an operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeCast { /** * @dev Value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value); /** * @dev An int value doesn't fit in an uint of `bits` size. */ error SafeCastOverflowedIntToUint(int256 value); /** * @dev Value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedIntDowncast(uint8 bits, int256 value); /** * @dev An uint value doesn't fit in an int of `bits` size. */ error SafeCastOverflowedUintToInt(uint256 value); /** * @dev Returns the downcasted uint248 from uint256, reverting on * overflow (when the input is greater than largest uint248). * * Counterpart to Solidity's `uint248` operator. * * Requirements: * * - input must fit into 248 bits */ function toUint248(uint256 value) internal pure returns (uint248) { if (value > type(uint248).max) { revert SafeCastOverflowedUintDowncast(248, value); } return uint248(value); } /** * @dev Returns the downcasted uint240 from uint256, reverting on * overflow (when the input is greater than largest uint240). * * Counterpart to Solidity's `uint240` operator. * * Requirements: * * - input must fit into 240 bits */ function toUint240(uint256 value) internal pure returns (uint240) { if (value > type(uint240).max) { revert SafeCastOverflowedUintDowncast(240, value); } return uint240(value); } /** * @dev Returns the downcasted uint232 from uint256, reverting on * overflow (when the input is greater than largest uint232). * * Counterpart to Solidity's `uint232` operator. * * Requirements: * * - input must fit into 232 bits */ function toUint232(uint256 value) internal pure returns (uint232) { if (value > type(uint232).max) { revert SafeCastOverflowedUintDowncast(232, value); } return uint232(value); } /** * @dev Returns the downcasted uint224 from uint256, reverting on * overflow (when the input is greater than largest uint224). * * Counterpart to Solidity's `uint224` operator. * * Requirements: * * - input must fit into 224 bits */ function toUint224(uint256 value) internal pure returns (uint224) { if (value > type(uint224).max) { revert SafeCastOverflowedUintDowncast(224, value); } return uint224(value); } /** * @dev Returns the downcasted uint216 from uint256, reverting on * overflow (when the input is greater than largest uint216). * * Counterpart to Solidity's `uint216` operator. * * Requirements: * * - input must fit into 216 bits */ function toUint216(uint256 value) internal pure returns (uint216) { if (value > type(uint216).max) { revert SafeCastOverflowedUintDowncast(216, value); } return uint216(value); } /** * @dev Returns the downcasted uint208 from uint256, reverting on * overflow (when the input is greater than largest uint208). * * Counterpart to Solidity's `uint208` operator. * * Requirements: * * - input must fit into 208 bits */ function toUint208(uint256 value) internal pure returns (uint208) { if (value > type(uint208).max) { revert SafeCastOverflowedUintDowncast(208, value); } return uint208(value); } /** * @dev Returns the downcasted uint200 from uint256, reverting on * overflow (when the input is greater than largest uint200). * * Counterpart to Solidity's `uint200` operator. * * Requirements: * * - input must fit into 200 bits */ function toUint200(uint256 value) internal pure returns (uint200) { if (value > type(uint200).max) { revert SafeCastOverflowedUintDowncast(200, value); } return uint200(value); } /** * @dev Returns the downcasted uint192 from uint256, reverting on * overflow (when the input is greater than largest uint192). * * Counterpart to Solidity's `uint192` operator. * * Requirements: * * - input must fit into 192 bits */ function toUint192(uint256 value) internal pure returns (uint192) { if (value > type(uint192).max) { revert SafeCastOverflowedUintDowncast(192, value); } return uint192(value); } /** * @dev Returns the downcasted uint184 from uint256, reverting on * overflow (when the input is greater than largest uint184). * * Counterpart to Solidity's `uint184` operator. * * Requirements: * * - input must fit into 184 bits */ function toUint184(uint256 value) internal pure returns (uint184) { if (value > type(uint184).max) { revert SafeCastOverflowedUintDowncast(184, value); } return uint184(value); } /** * @dev Returns the downcasted uint176 from uint256, reverting on * overflow (when the input is greater than largest uint176). * * Counterpart to Solidity's `uint176` operator. * * Requirements: * * - input must fit into 176 bits */ function toUint176(uint256 value) internal pure returns (uint176) { if (value > type(uint176).max) { revert SafeCastOverflowedUintDowncast(176, value); } return uint176(value); } /** * @dev Returns the downcasted uint168 from uint256, reverting on * overflow (when the input is greater than largest uint168). * * Counterpart to Solidity's `uint168` operator. * * Requirements: * * - input must fit into 168 bits */ function toUint168(uint256 value) internal pure returns (uint168) { if (value > type(uint168).max) { revert SafeCastOverflowedUintDowncast(168, value); } return uint168(value); } /** * @dev Returns the downcasted uint160 from uint256, reverting on * overflow (when the input is greater than largest uint160). * * Counterpart to Solidity's `uint160` operator. * * Requirements: * * - input must fit into 160 bits */ function toUint160(uint256 value) internal pure returns (uint160) { if (value > type(uint160).max) { revert SafeCastOverflowedUintDowncast(160, value); } return uint160(value); } /** * @dev Returns the downcasted uint152 from uint256, reverting on * overflow (when the input is greater than largest uint152). * * Counterpart to Solidity's `uint152` operator. * * Requirements: * * - input must fit into 152 bits */ function toUint152(uint256 value) internal pure returns (uint152) { if (value > type(uint152).max) { revert SafeCastOverflowedUintDowncast(152, value); } return uint152(value); } /** * @dev Returns the downcasted uint144 from uint256, reverting on * overflow (when the input is greater than largest uint144). * * Counterpart to Solidity's `uint144` operator. * * Requirements: * * - input must fit into 144 bits */ function toUint144(uint256 value) internal pure returns (uint144) { if (value > type(uint144).max) { revert SafeCastOverflowedUintDowncast(144, value); } return uint144(value); } /** * @dev Returns the downcasted uint136 from uint256, reverting on * overflow (when the input is greater than largest uint136). * * Counterpart to Solidity's `uint136` operator. * * Requirements: * * - input must fit into 136 bits */ function toUint136(uint256 value) internal pure returns (uint136) { if (value > type(uint136).max) { revert SafeCastOverflowedUintDowncast(136, value); } return uint136(value); } /** * @dev Returns the downcasted uint128 from uint256, reverting on * overflow (when the input is greater than largest uint128). * * Counterpart to Solidity's `uint128` operator. * * Requirements: * * - input must fit into 128 bits */ function toUint128(uint256 value) internal pure returns (uint128) { if (value > type(uint128).max) { revert SafeCastOverflowedUintDowncast(128, value); } return uint128(value); } /** * @dev Returns the downcasted uint120 from uint256, reverting on * overflow (when the input is greater than largest uint120). * * Counterpart to Solidity's `uint120` operator. * * Requirements: * * - input must fit into 120 bits */ function toUint120(uint256 value) internal pure returns (uint120) { if (value > type(uint120).max) { revert SafeCastOverflowedUintDowncast(120, value); } return uint120(value); } /** * @dev Returns the downcasted uint112 from uint256, reverting on * overflow (when the input is greater than largest uint112). * * Counterpart to Solidity's `uint112` operator. * * Requirements: * * - input must fit into 112 bits */ function toUint112(uint256 value) internal pure returns (uint112) { if (value > type(uint112).max) { revert SafeCastOverflowedUintDowncast(112, value); } return uint112(value); } /** * @dev Returns the downcasted uint104 from uint256, reverting on * overflow (when the input is greater than largest uint104). * * Counterpart to Solidity's `uint104` operator. * * Requirements: * * - input must fit into 104 bits */ function toUint104(uint256 value) internal pure returns (uint104) { if (value > type(uint104).max) { revert SafeCastOverflowedUintDowncast(104, value); } return uint104(value); } /** * @dev Returns the downcasted uint96 from uint256, reverting on * overflow (when the input is greater than largest uint96). * * Counterpart to Solidity's `uint96` operator. * * Requirements: * * - input must fit into 96 bits */ function toUint96(uint256 value) internal pure returns (uint96) { if (value > type(uint96).max) { revert SafeCastOverflowedUintDowncast(96, value); } return uint96(value); } /** * @dev Returns the downcasted uint88 from uint256, reverting on * overflow (when the input is greater than largest uint88). * * Counterpart to Solidity's `uint88` operator. * * Requirements: * * - input must fit into 88 bits */ function toUint88(uint256 value) internal pure returns (uint88) { if (value > type(uint88).max) { revert SafeCastOverflowedUintDowncast(88, value); } return uint88(value); } /** * @dev Returns the downcasted uint80 from uint256, reverting on * overflow (when the input is greater than largest uint80). * * Counterpart to Solidity's `uint80` operator. * * Requirements: * * - input must fit into 80 bits */ function toUint80(uint256 value) internal pure returns (uint80) { if (value > type(uint80).max) { revert SafeCastOverflowedUintDowncast(80, value); } return uint80(value); } /** * @dev Returns the downcasted uint72 from uint256, reverting on * overflow (when the input is greater than largest uint72). * * Counterpart to Solidity's `uint72` operator. * * Requirements: * * - input must fit into 72 bits */ function toUint72(uint256 value) internal pure returns (uint72) { if (value > type(uint72).max) { revert SafeCastOverflowedUintDowncast(72, value); } return uint72(value); } /** * @dev Returns the downcasted uint64 from uint256, reverting on * overflow (when the input is greater than largest uint64). * * Counterpart to Solidity's `uint64` operator. * * Requirements: * * - input must fit into 64 bits */ function toUint64(uint256 value) internal pure returns (uint64) { if (value > type(uint64).max) { revert SafeCastOverflowedUintDowncast(64, value); } return uint64(value); } /** * @dev Returns the downcasted uint56 from uint256, reverting on * overflow (when the input is greater than largest uint56). * * Counterpart to Solidity's `uint56` operator. * * Requirements: * * - input must fit into 56 bits */ function toUint56(uint256 value) internal pure returns (uint56) { if (value > type(uint56).max) { revert SafeCastOverflowedUintDowncast(56, value); } return uint56(value); } /** * @dev Returns the downcasted uint48 from uint256, reverting on * overflow (when the input is greater than largest uint48). * * Counterpart to Solidity's `uint48` operator. * * Requirements: * * - input must fit into 48 bits */ function toUint48(uint256 value) internal pure returns (uint48) { if (value > type(uint48).max) { revert SafeCastOverflowedUintDowncast(48, value); } return uint48(value); } /** * @dev Returns the downcasted uint40 from uint256, reverting on * overflow (when the input is greater than largest uint40). * * Counterpart to Solidity's `uint40` operator. * * Requirements: * * - input must fit into 40 bits */ function toUint40(uint256 value) internal pure returns (uint40) { if (value > type(uint40).max) { revert SafeCastOverflowedUintDowncast(40, value); } return uint40(value); } /** * @dev Returns the downcasted uint32 from uint256, reverting on * overflow (when the input is greater than largest uint32). * * Counterpart to Solidity's `uint32` operator. * * Requirements: * * - input must fit into 32 bits */ function toUint32(uint256 value) internal pure returns (uint32) { if (value > type(uint32).max) { revert SafeCastOverflowedUintDowncast(32, value); } return uint32(value); } /** * @dev Returns the downcasted uint24 from uint256, reverting on * overflow (when the input is greater than largest uint24). * * Counterpart to Solidity's `uint24` operator. * * Requirements: * * - input must fit into 24 bits */ function toUint24(uint256 value) internal pure returns (uint24) { if (value > type(uint24).max) { revert SafeCastOverflowedUintDowncast(24, value); } return uint24(value); } /** * @dev Returns the downcasted uint16 from uint256, reverting on * overflow (when the input is greater than largest uint16). * * Counterpart to Solidity's `uint16` operator. * * Requirements: * * - input must fit into 16 bits */ function toUint16(uint256 value) internal pure returns (uint16) { if (value > type(uint16).max) { revert SafeCastOverflowedUintDowncast(16, value); } return uint16(value); } /** * @dev Returns the downcasted uint8 from uint256, reverting on * overflow (when the input is greater than largest uint8). * * Counterpart to Solidity's `uint8` operator. * * Requirements: * * - input must fit into 8 bits */ function toUint8(uint256 value) internal pure returns (uint8) { if (value > type(uint8).max) { revert SafeCastOverflowedUintDowncast(8, value); } return uint8(value); } /** * @dev Converts a signed int256 into an unsigned uint256. * * Requirements: * * - input must be greater than or equal to 0. */ function toUint256(int256 value) internal pure returns (uint256) { if (value < 0) { revert SafeCastOverflowedIntToUint(value); } return uint256(value); } /** * @dev Returns the downcasted int248 from int256, reverting on * overflow (when the input is less than smallest int248 or * greater than largest int248). * * Counterpart to Solidity's `int248` operator. * * Requirements: * * - input must fit into 248 bits */ function toInt248(int256 value) internal pure returns (int248 downcasted) { downcasted = int248(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(248, value); } } /** * @dev Returns the downcasted int240 from int256, reverting on * overflow (when the input is less than smallest int240 or * greater than largest int240). * * Counterpart to Solidity's `int240` operator. * * Requirements: * * - input must fit into 240 bits */ function toInt240(int256 value) internal pure returns (int240 downcasted) { downcasted = int240(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(240, value); } } /** * @dev Returns the downcasted int232 from int256, reverting on * overflow (when the input is less than smallest int232 or * greater than largest int232). * * Counterpart to Solidity's `int232` operator. * * Requirements: * * - input must fit into 232 bits */ function toInt232(int256 value) internal pure returns (int232 downcasted) { downcasted = int232(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(232, value); } } /** * @dev Returns the downcasted int224 from int256, reverting on * overflow (when the input is less than smallest int224 or * greater than largest int224). * * Counterpart to Solidity's `int224` operator. * * Requirements: * * - input must fit into 224 bits */ function toInt224(int256 value) internal pure returns (int224 downcasted) { downcasted = int224(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(224, value); } } /** * @dev Returns the downcasted int216 from int256, reverting on * overflow (when the input is less than smallest int216 or * greater than largest int216). * * Counterpart to Solidity's `int216` operator. * * Requirements: * * - input must fit into 216 bits */ function toInt216(int256 value) internal pure returns (int216 downcasted) { downcasted = int216(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(216, value); } } /** * @dev Returns the downcasted int208 from int256, reverting on * overflow (when the input is less than smallest int208 or * greater than largest int208). * * Counterpart to Solidity's `int208` operator. * * Requirements: * * - input must fit into 208 bits */ function toInt208(int256 value) internal pure returns (int208 downcasted) { downcasted = int208(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(208, value); } } /** * @dev Returns the downcasted int200 from int256, reverting on * overflow (when the input is less than smallest int200 or * greater than largest int200). * * Counterpart to Solidity's `int200` operator. * * Requirements: * * - input must fit into 200 bits */ function toInt200(int256 value) internal pure returns (int200 downcasted) { downcasted = int200(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(200, value); } } /** * @dev Returns the downcasted int192 from int256, reverting on * overflow (when the input is less than smallest int192 or * greater than largest int192). * * Counterpart to Solidity's `int192` operator. * * Requirements: * * - input must fit into 192 bits */ function toInt192(int256 value) internal pure returns (int192 downcasted) { downcasted = int192(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(192, value); } } /** * @dev Returns the downcasted int184 from int256, reverting on * overflow (when the input is less than smallest int184 or * greater than largest int184). * * Counterpart to Solidity's `int184` operator. * * Requirements: * * - input must fit into 184 bits */ function toInt184(int256 value) internal pure returns (int184 downcasted) { downcasted = int184(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(184, value); } } /** * @dev Returns the downcasted int176 from int256, reverting on * overflow (when the input is less than smallest int176 or * greater than largest int176). * * Counterpart to Solidity's `int176` operator. * * Requirements: * * - input must fit into 176 bits */ function toInt176(int256 value) internal pure returns (int176 downcasted) { downcasted = int176(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(176, value); } } /** * @dev Returns the downcasted int168 from int256, reverting on * overflow (when the input is less than smallest int168 or * greater than largest int168). * * Counterpart to Solidity's `int168` operator. * * Requirements: * * - input must fit into 168 bits */ function toInt168(int256 value) internal pure returns (int168 downcasted) { downcasted = int168(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(168, value); } } /** * @dev Returns the downcasted int160 from int256, reverting on * overflow (when the input is less than smallest int160 or * greater than largest int160). * * Counterpart to Solidity's `int160` operator. * * Requirements: * * - input must fit into 160 bits */ function toInt160(int256 value) internal pure returns (int160 downcasted) { downcasted = int160(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(160, value); } } /** * @dev Returns the downcasted int152 from int256, reverting on * overflow (when the input is less than smallest int152 or * greater than largest int152). * * Counterpart to Solidity's `int152` operator. * * Requirements: * * - input must fit into 152 bits */ function toInt152(int256 value) internal pure returns (int152 downcasted) { downcasted = int152(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(152, value); } } /** * @dev Returns the downcasted int144 from int256, reverting on * overflow (when the input is less than smallest int144 or * greater than largest int144). * * Counterpart to Solidity's `int144` operator. * * Requirements: * * - input must fit into 144 bits */ function toInt144(int256 value) internal pure returns (int144 downcasted) { downcasted = int144(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(144, value); } } /** * @dev Returns the downcasted int136 from int256, reverting on * overflow (when the input is less than smallest int136 or * greater than largest int136). * * Counterpart to Solidity's `int136` operator. * * Requirements: * * - input must fit into 136 bits */ function toInt136(int256 value) internal pure returns (int136 downcasted) { downcasted = int136(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(136, value); } } /** * @dev Returns the downcasted int128 from int256, reverting on * overflow (when the input is less than smallest int128 or * greater than largest int128). * * Counterpart to Solidity's `int128` operator. * * Requirements: * * - input must fit into 128 bits */ function toInt128(int256 value) internal pure returns (int128 downcasted) { downcasted = int128(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(128, value); } } /** * @dev Returns the downcasted int120 from int256, reverting on * overflow (when the input is less than smallest int120 or * greater than largest int120). * * Counterpart to Solidity's `int120` operator. * * Requirements: * * - input must fit into 120 bits */ function toInt120(int256 value) internal pure returns (int120 downcasted) { downcasted = int120(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(120, value); } } /** * @dev Returns the downcasted int112 from int256, reverting on * overflow (when the input is less than smallest int112 or * greater than largest int112). * * Counterpart to Solidity's `int112` operator. * * Requirements: * * - input must fit into 112 bits */ function toInt112(int256 value) internal pure returns (int112 downcasted) { downcasted = int112(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(112, value); } } /** * @dev Returns the downcasted int104 from int256, reverting on * overflow (when the input is less than smallest int104 or * greater than largest int104). * * Counterpart to Solidity's `int104` operator. * * Requirements: * * - input must fit into 104 bits */ function toInt104(int256 value) internal pure returns (int104 downcasted) { downcasted = int104(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(104, value); } } /** * @dev Returns the downcasted int96 from int256, reverting on * overflow (when the input is less than smallest int96 or * greater than largest int96). * * Counterpart to Solidity's `int96` operator. * * Requirements: * * - input must fit into 96 bits */ function toInt96(int256 value) internal pure returns (int96 downcasted) { downcasted = int96(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(96, value); } } /** * @dev Returns the downcasted int88 from int256, reverting on * overflow (when the input is less than smallest int88 or * greater than largest int88). * * Counterpart to Solidity's `int88` operator. * * Requirements: * * - input must fit into 88 bits */ function toInt88(int256 value) internal pure returns (int88 downcasted) { downcasted = int88(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(88, value); } } /** * @dev Returns the downcasted int80 from int256, reverting on * overflow (when the input is less than smallest int80 or * greater than largest int80). * * Counterpart to Solidity's `int80` operator. * * Requirements: * * - input must fit into 80 bits */ function toInt80(int256 value) internal pure returns (int80 downcasted) { downcasted = int80(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(80, value); } } /** * @dev Returns the downcasted int72 from int256, reverting on * overflow (when the input is less than smallest int72 or * greater than largest int72). * * Counterpart to Solidity's `int72` operator. * * Requirements: * * - input must fit into 72 bits */ function toInt72(int256 value) internal pure returns (int72 downcasted) { downcasted = int72(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(72, value); } } /** * @dev Returns the downcasted int64 from int256, reverting on * overflow (when the input is less than smallest int64 or * greater than largest int64). * * Counterpart to Solidity's `int64` operator. * * Requirements: * * - input must fit into 64 bits */ function toInt64(int256 value) internal pure returns (int64 downcasted) { downcasted = int64(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(64, value); } } /** * @dev Returns the downcasted int56 from int256, reverting on * overflow (when the input is less than smallest int56 or * greater than largest int56). * * Counterpart to Solidity's `int56` operator. * * Requirements: * * - input must fit into 56 bits */ function toInt56(int256 value) internal pure returns (int56 downcasted) { downcasted = int56(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(56, value); } } /** * @dev Returns the downcasted int48 from int256, reverting on * overflow (when the input is less than smallest int48 or * greater than largest int48). * * Counterpart to Solidity's `int48` operator. * * Requirements: * * - input must fit into 48 bits */ function toInt48(int256 value) internal pure returns (int48 downcasted) { downcasted = int48(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(48, value); } } /** * @dev Returns the downcasted int40 from int256, reverting on * overflow (when the input is less than smallest int40 or * greater than largest int40). * * Counterpart to Solidity's `int40` operator. * * Requirements: * * - input must fit into 40 bits */ function toInt40(int256 value) internal pure returns (int40 downcasted) { downcasted = int40(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(40, value); } } /** * @dev Returns the downcasted int32 from int256, reverting on * overflow (when the input is less than smallest int32 or * greater than largest int32). * * Counterpart to Solidity's `int32` operator. * * Requirements: * * - input must fit into 32 bits */ function toInt32(int256 value) internal pure returns (int32 downcasted) { downcasted = int32(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(32, value); } } /** * @dev Returns the downcasted int24 from int256, reverting on * overflow (when the input is less than smallest int24 or * greater than largest int24). * * Counterpart to Solidity's `int24` operator. * * Requirements: * * - input must fit into 24 bits */ function toInt24(int256 value) internal pure returns (int24 downcasted) { downcasted = int24(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(24, value); } } /** * @dev Returns the downcasted int16 from int256, reverting on * overflow (when the input is less than smallest int16 or * greater than largest int16). * * Counterpart to Solidity's `int16` operator. * * Requirements: * * - input must fit into 16 bits */ function toInt16(int256 value) internal pure returns (int16 downcasted) { downcasted = int16(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(16, value); } } /** * @dev Returns the downcasted int8 from int256, reverting on * overflow (when the input is less than smallest int8 or * greater than largest int8). * * Counterpart to Solidity's `int8` operator. * * Requirements: * * - input must fit into 8 bits */ function toInt8(int256 value) internal pure returns (int8 downcasted) { downcasted = int8(value); if (downcasted != value) { revert SafeCastOverflowedIntDowncast(8, value); } } /** * @dev Converts an unsigned uint256 into a signed int256. * * Requirements: * * - input must be less than or equal to maxInt256. */ function toInt256(uint256 value) internal pure returns (int256) { // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive if (value > uint256(type(int256).max)) { revert SafeCastOverflowedUintToInt(value); } return int256(value); } /** * @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump. */ function toUint(bool b) internal pure returns (uint256 u) { assembly ("memory-safe") { u := iszero(iszero(b)) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/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); } } }
// 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)); } }
{ "evmVersion": "cancun", "libraries": {}, "metadata": { "appendCBOR": true, "bytecodeHash": "ipfs", "useLiteralContent": false }, "optimizer": { "enabled": false, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "remappings": [ "ds-test/=lib/ds-test/src/", "forge-std/=lib/forge-std/src/", "@openzeppelin/=lib/openzeppelin-contracts/", "@openzeppelin-upgradeable/=lib/openzeppelin-contracts-upgradeable/", "@opengsn/=lib/gsn/packages/", "@uniswap/v3-core/=lib/v3-core/", "utils/=test/utils/", "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/", "eth-gas-reporter/=node_modules/eth-gas-reporter/", "gsn/=lib/gsn/", "halmos-cheatcodes/=lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/", "hardhat-deploy/=node_modules/hardhat-deploy/", "hardhat/=node_modules/hardhat/", "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/", "openzeppelin-contracts/=lib/openzeppelin-contracts/" ], "viaIR": false }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"authority","type":"address"}],"name":"AccessManagedInvalidAuthority","type":"error"},{"inputs":[{"internalType":"address","name":"caller","type":"address"},{"internalType":"uint32","name":"delay","type":"uint32"}],"name":"AccessManagedRequiredDelay","type":"error"},{"inputs":[{"internalType":"address","name":"caller","type":"address"}],"name":"AccessManagedUnauthorized","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":"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":"address","name":"account","type":"address"},{"internalType":"uint256","name":"currentNonce","type":"uint256"}],"name":"InvalidAccountNonce","type":"error"},{"inputs":[],"name":"InvalidInitialization","type":"error"},{"inputs":[],"name":"NotInitializing","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":false,"internalType":"address","name":"authority","type":"address"}],"name":"AuthorityUpdated","type":"event"},{"anonymous":false,"inputs":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"version","type":"uint64"}],"name":"Initialized","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":"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":[],"name":"authority","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","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":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"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":[{"internalType":"address","name":"_initialAuthority","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isConsumingScheduledOp","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","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":"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":[{"internalType":"address","name":"newAuthority","type":"address"}],"name":"setAuthority","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"}]
Contract Creation Code
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
Deployed Bytecode
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
Loading...
Loading
Loading...
Loading
Loading...
Loading
Loading...
Loading
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.