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0x60a06040 | 18573383 | 231 days ago | IN | Create: PublicLimitedExactFixedPrice | 0 ETH | 0.05327186 |
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Contract Name:
PublicLimitedExactFixedPrice
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 9999 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity ^0.8.16; import {Seller} from "../base/Seller.sol"; import {ISellable, CallbackerWithAccessControl} from "./CallbackerWithAccessControl.sol"; import {Public} from "../mechanics/Public.sol"; import {ExactSettableFixedPrice} from "./ExactSettableFixedPrice.sol"; import {InternallyPriced, ExactInternallyPriced} from "../base/InternallyPriced.sol"; import {SettablePerAddressLimited, PerAddressLimited} from "./SettablePerAddressLimited.sol"; /** * @notice Public seller with a fixed price. */ contract PublicLimitedExactFixedPrice is Public, ExactSettableFixedPrice, SettablePerAddressLimited { constructor(address admin, address steerer, ISellable sellable_, uint256 price, uint64 maxPerAddress_) CallbackerWithAccessControl(admin, steerer, sellable_) ExactSettableFixedPrice(price) { _setMaxPerAddress(maxPerAddress_); } /** * @inheritdoc Seller */ function _checkAndModifyPurchase(address to, uint64 num, uint256 totalCost, bytes memory data) internal view virtual override(InternallyPriced, ExactInternallyPriced, PerAddressLimited) returns (address, uint64, uint256) { (to, num, totalCost) = ExactInternallyPriced._checkAndModifyPurchase(to, num, totalCost, data); (to, num, totalCost) = PerAddressLimited._checkAndModifyPurchase(to, num, totalCost, data); return (to, num, totalCost); } /** * @inheritdoc Seller */ function _beforePurchase(address to, uint64 num, uint256 totalCost, bytes memory data) internal virtual override(Seller, PerAddressLimited) { Seller._beforePurchase(to, num, totalCost, data); PerAddressLimited._beforePurchase(to, num, totalCost, data); } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity >=0.8.0 <0.9.0; import {ReentrancyGuard} from "openzeppelin-contracts/security/ReentrancyGuard.sol"; import {PurchaseExecuter} from "../interfaces/PurchaseExecuter.sol"; /** * @notice Abstract base contract for all `Seller`s. * @dev The intention of this contract is to provide an extensible base for various kinds of Seller modules that can be * flexibly composed to build more complex sellers - allowing effective code reuse. * Derived contracts are intended to implement their logic by overriding and extending the `_checkAndModifyPurchase` and * `_beforePurchase` hooks (calling the parent implementation(s) to compose logic). The former is intended to perform * manipulations and checks of the input data; the latter to update the internal state of the module. * Final sellers will compose these modules and expose an addition external purchase function for buyers. */ abstract contract Seller is PurchaseExecuter, ReentrancyGuard { uint256 internal constant _UNDEFINED_COST = type(uint256).max; /** * @notice Internal function handling a given purchase, performing checks and input manipulations depending on the * logic in the hooks. * @param to The receiver of the purchase * @param num Number of requested purchases * @param externalTotalCost Total cost of the purchase * @dev This function is intended to be wrapped in an external method for final sellers. Since we cannot foresee * what logic will be implemented in the hooks, we added a reentrancy guard for safety. */ function _purchase(address to, uint64 num, uint256 externalTotalCost, bytes memory data) internal virtual nonReentrant { uint256 totalCost; (to, num, totalCost) = _checkAndModifyPurchase(to, num, externalTotalCost, data); _beforePurchase(to, num, totalCost, data); _executePurchase(to, num, totalCost, data); } // ================================================================================================================= // Hooks // ================================================================================================================= /** * @notice Hook that is called before handling a purchase (even before `_beforePurchase`) * @dev The intent of this hook is to manipulate the input data and perform checks before actually handling the * purchase. * @param to The receiver of the purchase * @param num Number of requested purchases * @param totalCost Total cost of the purchase * @dev This function MUST return sensible values, since these will be used to perfom the purchase. */ function _checkAndModifyPurchase(address to, uint64 num, uint256 totalCost, bytes memory) internal view virtual returns (address, uint64, uint256) { return (to, num, totalCost); } /** * @notice Hook that is called before handling a purchase. * @dev The intent of this hook is to update the internal state of the seller (module) if necessary. * It is critical that the updates happen here and not in `_checkAndModifyPurchase` because only after calling that * function the purchase parameters can be considered fixed. */ function _beforePurchase(address to, uint64 num, uint256 totalCost, bytes memory data) internal virtual { // solhint-disable-line no-empty-blocks } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity ^0.8.16; import {AccessControlEnumerable} from "ethier/utils/AccessControlEnumerable.sol"; import {ISellable, ImmutableSellableCallbacker, SettableSellableCallbacker} from "../base/SellableCallbacker.sol"; /** * @notice Base contract for seller presets that call back to a sellable contract. */ contract AccessControlled is AccessControlEnumerable { constructor(address admin, address steerer) { _grantRole(DEFAULT_ADMIN_ROLE, admin); _grantRole(DEFAULT_STEERING_ROLE, steerer); } } /** * @notice Base contract for seller presets that call back to a sellable contract. */ contract CallbackerWithAccessControl is ImmutableSellableCallbacker, AccessControlled { constructor(address admin, address steerer, ISellable sellable_) ImmutableSellableCallbacker(sellable_) AccessControlled(admin, steerer) {} } /** * @notice Base contract for seller presets that call back to a sellable contract. */ contract SettableCallbackerWithAccessControl is SettableSellableCallbacker, AccessControlled { constructor(address admin, address steerer) AccessControlled(admin, steerer) {} function setSellable(ISellable sellable_) external onlyRole(DEFAULT_STEERING_ROLE) { _setSellable(sellable_); } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity ^0.8.16; import {Seller} from "../base/Seller.sol"; import {InternallyPriced} from "../base/InternallyPriced.sol"; /** * @notice Introduces public purchase interface with an internally computed cost. */ abstract contract Public is InternallyPriced { /** * @notice Interface to perform public purchases. */ function purchase(address to, uint64 num) public payable virtual { InternallyPriced._purchase(to, num, ""); } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity ^0.8.16; import {CallbackerWithAccessControl} from "./CallbackerWithAccessControl.sol"; import {ExactFixedPrice} from "../base/InternallyPriced.sol"; /** * @notice Seller with a steerer-settable price. */ abstract contract ExactSettableFixedPrice is ExactFixedPrice, CallbackerWithAccessControl { constructor(uint256 price) ExactFixedPrice(price) {} /** * @notice Sets the price of a single purchase. */ function setPrice(uint256 price) external onlyRole(DEFAULT_STEERING_ROLE) { _setPrice(price); } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity >=0.8.0 <0.9.0; import {Seller} from "./Seller.sol"; /** * @notice Extends the basic seller by assuming that the total cost of the purchase can be computed by an internal * function and is not supplied externally. */ abstract contract InternallyPriced is Seller { /** * @notice Computes the total cost of purchasing `num` tokens. * @dev This is intended to be overridden by derived contracts. */ function _cost(uint64 num) internal view virtual returns (uint256); /** * @notice Returns the total cost of purchasing `num` tokens. * @dev Intended for third-party integrations. */ function cost(uint64 num) external view returns (uint256) { return _cost(num); } /** * @dev Replaces the cost of the purchase with the computed value. */ function _checkAndModifyPurchase(address to, uint64 num, uint256 cost_, bytes memory data) internal view virtual override returns (address, uint64, uint256) { (to, num, cost_) = super._checkAndModifyPurchase(to, num, cost_, data); return (to, num, _cost(num)); } /** * @dev Convenience function without cost that is now computed internally instead. */ function _purchase(address to, uint64 num, bytes memory data) internal { _purchase(to, num, _UNDEFINED_COST, data); } } /** * @notice Extends internally priced sellers by ensuring that the sent value matches the computed cost exactly. */ abstract contract ExactInternallyPriced is InternallyPriced { // ========================================================================= // Errors // ========================================================================= /** * @notice Thrown if the payment does not match the computed cost. */ error WrongPayment(uint256 actual, uint256 expected); /** * @inheritdoc Seller */ function _checkAndModifyPurchase(address to, uint64 num, uint256 cost_, bytes memory data) internal view virtual override returns (address, uint64, uint256) { (to, num, cost_) = InternallyPriced._checkAndModifyPurchase(to, num, cost_, data); if (msg.value != cost_) { revert WrongPayment(msg.value, cost_); } return (to, num, cost_); } } /** * @notice Public seller with a fixed price. */ abstract contract ExactFixedPrice is ExactInternallyPriced { constructor(uint256 price) { _setPrice(price); } /** * @notice The price of a single purchase. */ uint256 private _price; /** * @notice Computes the cost of a purchase. */ function _cost(uint64 num) internal view virtual override returns (uint256) { return num * _price; } /** * @notice Sets the price of a single purchase. */ function _setPrice(uint256 price) internal { _price = price; } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity ^0.8.16; import {CallbackerWithAccessControl} from "./CallbackerWithAccessControl.sol"; import {PerAddressLimited} from "../base/PerAddressLimited.sol"; /** * @notice Seller with a steerer-settable per-address purchase limit. */ abstract contract SettablePerAddressLimited is PerAddressLimited, CallbackerWithAccessControl { /** * @notice Sets the per-address purchase limit. */ function setMaxPerAddress(uint64 maxPerAddress_) external onlyRole(DEFAULT_STEERING_ROLE) { _setMaxPerAddress(maxPerAddress_); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be _NOT_ENTERED require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity >=0.8.0 <0.9.0; /** * @notice Interface to execute purchases in `Seller`s. * @dev This executes the final purchase. This can be anything from minting ERC721 tokens to transfering funds, etc. */ abstract contract PurchaseExecuter { function _executePurchase(address to, uint64 num, uint256 cost, bytes memory data) internal virtual; }
// SPDX-License-Identifier: MIT // Copyright (c) 2023 the ethier authors (github.com/divergencetech/ethier) pragma solidity >=0.8.0 <0.9.0; import {AccessControlEnumerable as ACE} from "@openzeppelin/contracts/access/AccessControlEnumerable.sol"; contract AccessControlEnumerable is ACE { /// @notice The default role intended to perform access-restricted actions. /// @dev We are using this instead of DEFAULT_ADMIN_ROLE because the latter /// is intended to grant/revoke roles and will be secured differently. bytes32 public constant DEFAULT_STEERING_ROLE = keccak256("DEFAULT_STEERING_ROLE"); /// @dev Overrides supportsInterface so that inheriting contracts can /// reference this contract instead of OZ's version for further overrides. function supportsInterface(bytes4 interfaceId) public view virtual override(ACE) returns (bool) { return ACE.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity >=0.8.0 <0.9.0; import {ISellable} from "../interfaces/ISellable.sol"; import {PurchaseExecuter} from "../interfaces/PurchaseExecuter.sol"; /** * @notice Executes a purchase by calling the purchase interface of a `ISellable` contract. */ abstract contract SellableCallbacker is PurchaseExecuter { /** * @notice Emitted when the callback to the `ISellable` contract fails. */ error CallbackFailed(bytes reason); function _sellable(address to, uint64 num, uint256 cost, bytes memory data) internal virtual returns (ISellable); /** * @notice Executes a purchase by calling the sale interface of a `ISellable` contract. */ function _executePurchase(address to, uint64 num, uint256 cost, bytes memory data) internal virtual override { ISellable sellable = _sellable(to, num, cost, data); try sellable.handleSale{value: cost}(to, num, data) {} catch (bytes memory reason) { // TODO(dave): the reason is empty if the above call runs OutOfFund. Explore ways to bubble this up more cleanly. revert CallbackFailed(reason); } } } /** * @notice Executes a purchase by calling the purchase interface of a `ISellable` contract. */ abstract contract ImmutableSellableCallbacker is SellableCallbacker { /** * @notice The `ISellable` contract that will be called to execute the purchase. */ ISellable public immutable sellable; constructor(ISellable sellable_) { sellable = sellable_; } function _sellable(address, uint64, uint256, bytes memory) internal virtual override returns (ISellable) { return sellable; } } /** * @notice Executes a purchase by calling the purchase interface of a `ISellable` contract. */ abstract contract SettableSellableCallbacker is SellableCallbacker { /** * @notice The `ISellable` contract that will be called to execute the purchase. */ ISellable private _sellable_; function _sellable(address, uint64, uint256, bytes memory) internal virtual override returns (ISellable) { return _sellable_; } function _setSellable(ISellable sellable_) internal { _sellable_ = sellable_; } function sellable() public view returns (ISellable) { return _sellable_; } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity >=0.8.0 <0.9.0; import {Seller} from "./Seller.sol"; /** * @notice A seller module to limit the number of items purchased per address. */ abstract contract PerAddressLimited is Seller { /** * @notice Thrown when the number of requested purchases exceeds the per-address limit. * @dev We're using a signed int for `numLeft` since the value can be negative if the per-address limit is lowered * after items have already been purchased. */ error ExceedingMaxPerAddressLimit(uint64 numRequested, int128 numLeft); /** * @notice Max number of purchases per address. * @dev `_maxPerAddress = 0` means this limit will be ignored. */ uint64 private _maxPerAddress; /** * @notice Tracks the number of items already bought by an address. */ mapping(address => uint64) private _bought; /** * @notice Sets a new limit. */ function _setMaxPerAddress(uint64 maxPerAddress_) internal { _maxPerAddress = maxPerAddress_; } /** * @notice The maximum number of purchases per address. */ function maxPerAddress() public view returns (uint64) { return _maxPerAddress; } /** * @notice The number of items already bought by an address. */ function numPurchasedBy(address addr) public view returns (uint64) { return _bought[addr]; } // ------------------------------------------------------------------------- // // Internals // // ------------------------------------------------------------------------- /** * @inheritdoc Seller * @dev Checks if the number of requested purchases is below the limits. Reverts otherwise. */ function _checkAndModifyPurchase(address to, uint64 num, uint256 totalCost, bytes memory data) internal view virtual override(Seller) returns (address, uint64, uint256) { (to, num, totalCost) = Seller._checkAndModifyPurchase(to, num, totalCost, data); // Casting to signed integers to avoid potential underflows if the per-address limit is lowered after items have // already been purchased. int128 remaining = int128(uint128(_maxPerAddress)) - int128(uint128(_bought[msg.sender])); if (int128(uint128(num)) > remaining) { revert ExceedingMaxPerAddressLimit(num, remaining); } return (to, num, totalCost); } /** * @inheritdoc Seller * @dev Updating the number of items bought by the purchaser. */ function _beforePurchase(address to, uint64 num, uint256 totalCost, bytes memory data) internal virtual override(Seller) { Seller._beforePurchase(to, num, totalCost, data); _bought[msg.sender] += num; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol) pragma solidity ^0.8.0; import "./IAccessControlEnumerable.sol"; import "./AccessControl.sol"; import "../utils/structs/EnumerableSet.sol"; /** * @dev Extension of {AccessControl} that allows enumerating the members of each role. */ abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl { using EnumerableSet for EnumerableSet.AddressSet; mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlEnumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. */ function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) { return _roleMembers[role].at(index); } /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. */ function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) { return _roleMembers[role].length(); } /** * @dev Overload {_grantRole} to track enumerable memberships */ function _grantRole(bytes32 role, address account) internal virtual override { super._grantRole(role, account); _roleMembers[role].add(account); } /** * @dev Overload {_revokeRole} to track enumerable memberships */ function _revokeRole(bytes32 role, address account) internal virtual override { super._revokeRole(role, account); _roleMembers[role].remove(account); } }
// SPDX-License-Identifier: MIT // Copyright 2023 PROOF Holdings Inc pragma solidity >=0.8.0 <0.9.0; /** * @notice Basic interface for a contract providing sellable content. */ interface ISellable { /** * @notice Handles the sale of sellable content. * @dev This is usually only callable by Sellers. */ function handleSale(address to, uint64 num, bytes calldata data) external payable; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; /** * @dev External interface of AccessControlEnumerable declared to support ERC165 detection. */ interface IAccessControlEnumerable is IAccessControl { /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. */ function getRoleMember(bytes32 role, uint256 index) external view returns (address); /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. */ function getRoleMemberCount(bytes32 role) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(account), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values in the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
{ "remappings": [ "@divergencetech/ethier/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/ethier_0-55-0/", "@openzeppelin/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/openzeppelin-contracts_4-8-1/", "ERC721A/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/ERC721A_4-2-3/contracts/", "ERC721A_root/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/ERC721A_4-2-3/", "delegation-registry/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/delegation-registry_2d1a158b/src/", "delegation-registry_root/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/delegation-registry_2d1a158b/", "ds-test/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/ds-test_013e6c64/src/", "erc721a/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/ERC721A_4-2-3/", "ethier/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/ethier_0-55-0/contracts/", "ethier_root/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/ethier_0-55-0/", "forge-std/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/forge-std_1-5-6/src/", "forge-std_root/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/forge-std_1-5-6/", "openzeppelin-contracts/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/openzeppelin-contracts_4-8-1/contracts/", "openzeppelin-contracts/contracts/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/openzeppelin-contracts_4-8-1/contracts/", "openzeppelin-contracts_root/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/openzeppelin-contracts_4-8-1/", "operator-filter-registry/src/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/operator-filter-registry_1-4-1/src/", "operator-filter-registry_root/=/home/arran/.cache/bazel/_bazel_arran/1dfc65062d6989adcea32ee6b024093a/external/operator-filter-registry_1-4-1/", "proof/constants/=/home/arran/proofxyz/proof/contracts/constants/src/", "proof/sellers/=/home/arran/proofxyz/proof/contracts/sellers/src/" ], "optimizer": { "enabled": true, "runs": 9999 }, "metadata": { "bytecodeHash": "none", "appendCBOR": false }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "paris", "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"admin","type":"address"},{"internalType":"address","name":"steerer","type":"address"},{"internalType":"contract ISellable","name":"sellable_","type":"address"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint64","name":"maxPerAddress_","type":"uint64"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"bytes","name":"reason","type":"bytes"}],"name":"CallbackFailed","type":"error"},{"inputs":[{"internalType":"uint64","name":"numRequested","type":"uint64"},{"internalType":"int128","name":"numLeft","type":"int128"}],"name":"ExceedingMaxPerAddressLimit","type":"error"},{"inputs":[{"internalType":"uint256","name":"actual","type":"uint256"},{"internalType":"uint256","name":"expected","type":"uint256"}],"name":"WrongPayment","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_STEERING_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"num","type":"uint64"}],"name":"cost","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getRoleMember","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleMemberCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerAddress","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"numPurchasedBy","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint64","name":"num","type":"uint64"}],"name":"purchase","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"sellable","outputs":[{"internalType":"contract ISellable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"maxPerAddress_","type":"uint64"}],"name":"setMaxPerAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"price","type":"uint256"}],"name":"setPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000083895f7508926741cd2147c4aac65c30a851cc3000000000000000000000000083895f7508926741cd2147c4aac65c30a851cc30000000000000000000000000f6599dc37516429bf11592ac879d27de1b274b3b00000000000000000000000000000000000000000000000002c68af0bb140000000000000000000000000000000000000000000000000000ffffffffffffffff
-----Decoded View---------------
Arg [0] : admin (address): 0x83895F7508926741CD2147C4AAC65C30a851Cc30
Arg [1] : steerer (address): 0x83895F7508926741CD2147C4AAC65C30a851Cc30
Arg [2] : sellable_ (address): 0xf6599dC37516429Bf11592AC879d27De1b274b3B
Arg [3] : price (uint256): 200000000000000000
Arg [4] : maxPerAddress_ (uint64): 18446744073709551615
-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 00000000000000000000000083895f7508926741cd2147c4aac65c30a851cc30
Arg [1] : 00000000000000000000000083895f7508926741cd2147c4aac65c30a851cc30
Arg [2] : 000000000000000000000000f6599dc37516429bf11592ac879d27de1b274b3b
Arg [3] : 00000000000000000000000000000000000000000000000002c68af0bb140000
Arg [4] : 000000000000000000000000000000000000000000000000ffffffffffffffff
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.