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Deploy Engine Ch... | 5913074 | 39 days ago | IN | 0 S | 0.12058981 | ||||
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Deploy Engine Ch... | 5275669 | 45 days ago | IN | 0 S | 0.12031739 | ||||
Deploy Engine Ch... | 5275621 | 45 days ago | IN | 0 S | 0.12031838 | ||||
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Deploy Engine Ch... | 2014357 | 70 days ago | IN | 0 S | 0.0024063 | ||||
Deploy Engine Ch... | 2014034 | 70 days ago | IN | 0 S | 0.00241653 | ||||
Deploy Engine Ch... | 1022772 | 79 days ago | IN | 0 S | 0.00240626 | ||||
Deploy Engine Ch... | 904196 | 80 days ago | IN | 0 S | 0.00246275 |
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Contract Source Code Verified (Exact Match)
Contract Name:
ChipsFactory
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; import {IRegistryV1} from "../../interfaces/IRegistryV1.sol"; import {ILynxVersionedContract} from "../../interfaces/ILynxVersionedContract.sol"; import {SingleContractDeployerBase} from "../deployers/baseContracts/SingleContractDeployerBase.sol"; import {EngineChipDeployer} from "../deployers/chips/EngineChipDeployer.sol"; contract ChipsFactory is ILynxVersionedContract { // ***** Events ***** event ApprovedCallerSet(address indexed caller, bool indexed isApproved); event EngineChipDeployed( address indexed asset, address indexed caller, address indexed engineChip, string symbol ); // ***** Constants (ILynxVersionedContract interface) ***** string public constant CONTRACT_NAME = "ChipsFactory"; string public constant CONTRACT_VERSION = "100"; // 0.10 // ***** Immutable ***** string public constant CHIPS_DEPLOYER_ROLE_KEY = "CHIPS_DEPLOYER_ROLE"; /** * @notice System Registry */ address public immutable registry; address public immutable engineChipDeployer; // ***** Storage ***** mapping(address => address) public engineChipForAsset; address[] public allAssetsDeployedFor; address[] public allAssetsWithEngineChip; // ***** Views (ILynxVersionedContract interface) ***** function getContractName() external pure override returns (string memory) { return CONTRACT_NAME; } function getContractVersion() external pure override returns (string memory) { return CONTRACT_VERSION; } // ***** Views ***** function getAllAssetsDeployedFor() public view returns (address[] memory) { return allAssetsDeployedFor; } function getAllAssetsWithEngineChip() public view returns (address[] memory) { return allAssetsWithEngineChip; } // ***** Constructor ***** constructor(address _registry, address _engineChipDeployer) { // Sanity validateProxyDeployerContract(_registry, _engineChipDeployer, "EngineChip"); // Immutables registry = _registry; engineChipDeployer = _engineChipDeployer; } // ***** Deployment functions ***** function deployEngineChipForAsset( string memory _name, string memory _symbol, address _asset, address _initialAdmin ) public returns (address) { address chipsDeployerRole = IRegistryV1(registry).getDynamicRoleAddress( CHIPS_DEPLOYER_ROLE_KEY ); require(msg.sender == chipsDeployerRole, "NOT_AUTHORIZED_DEPLOYER"); // Sanity require( engineChipForAsset[_asset] == address(0), "ALREADY_DEPLOYED_FOR_ASSET" ); // Deploy the Lex Proxies address freshEngineChip = EngineChipDeployer(engineChipDeployer) .deployEngineChip(_name, _symbol, _asset, _initialAdmin); // Store contract engineChipForAsset[_asset] = freshEngineChip; // Add to all assets array allAssetsDeployedFor.push(_asset); allAssetsWithEngineChip.push(_asset); // Emit event emit EngineChipDeployed(_asset, msg.sender, freshEngineChip, _symbol); return freshEngineChip; } // ***** Utils ***** /** * @notice validates the deployer contract is the one we expect */ function validateProxyDeployerContract( address _ownRegistry, address _deployerContract, string memory expectedName ) internal { // Sanity -- Ensure the deployer is connected to the same registry require( _ownRegistry == EngineChipDeployer(_deployerContract).registry(), "REGISTRY_MISMATCH" ); // Sanity -- Ensure the deployer deploys what we expect string memory deployedContractName = SingleContractDeployerBase( _deployerContract ).DEPLOYED_CONTRACT_NAME(); require( compareStrings(deployedContractName, expectedName), "WRONG_DEPLOYER_CONTRACT" ); } /** * @notice Util function for string comparison */ function compareStrings( string memory a, string memory b ) public pure returns (bool) { return keccak256(abi.encodePacked(a)) == keccak256(abi.encodePacked(b)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol) pragma solidity ^0.8.20; /** * @dev Standard ERC20 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 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 ERC721 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens. */ interface IERC721Errors { /** * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-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 ERC1155 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 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 v5.0.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "./IERC20.sol"; import {IERC20Metadata} from "./extensions/IERC20Metadata.sol"; import {Context} from "../../utils/Context.sol"; import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. */ abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors { mapping(address account => uint256) private _balances; mapping(address account => mapping(address spender => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the default value returned by this function, unless * it's overridden. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `value`. */ function transfer(address to, uint256 value) public virtual returns (bool) { address owner = _msgSender(); _transfer(owner, to, value); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, value); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `value`. * - the caller must have allowance for ``from``'s tokens of at least * `value`. */ function transferFrom(address from, address to, uint256 value) public virtual returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, value); _transfer(from, to, value); return true; } /** * @dev Moves a `value` amount of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * NOTE: This function is not virtual, {_update} should be overridden instead. */ function _transfer(address from, address to, uint256 value) internal { if (from == address(0)) { revert ERC20InvalidSender(address(0)); } if (to == address(0)) { revert ERC20InvalidReceiver(address(0)); } _update(from, to, value); } /** * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from` * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding * this function. * * Emits a {Transfer} event. */ function _update(address from, address to, uint256 value) internal virtual { if (from == address(0)) { // Overflow check required: The rest of the code assumes that totalSupply never overflows _totalSupply += value; } else { uint256 fromBalance = _balances[from]; if (fromBalance < value) { revert ERC20InsufficientBalance(from, fromBalance, value); } unchecked { // Overflow not possible: value <= fromBalance <= totalSupply. _balances[from] = fromBalance - value; } } if (to == address(0)) { unchecked { // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply. _totalSupply -= value; } } else { unchecked { // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256. _balances[to] += value; } } emit Transfer(from, to, value); } /** * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0). * Relies on the `_update` mechanism * * Emits a {Transfer} event with `from` set to the zero address. * * NOTE: This function is not virtual, {_update} should be overridden instead. */ function _mint(address account, uint256 value) internal { if (account == address(0)) { revert ERC20InvalidReceiver(address(0)); } _update(address(0), account, value); } /** * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply. * Relies on the `_update` mechanism. * * Emits a {Transfer} event with `to` set to the zero address. * * NOTE: This function is not virtual, {_update} should be overridden instead */ function _burn(address account, uint256 value) internal { if (account == address(0)) { revert ERC20InvalidSender(address(0)); } _update(account, address(0), value); } /** * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. * * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument. */ function _approve(address owner, address spender, uint256 value) internal { _approve(owner, spender, value, true); } /** * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event. * * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any * `Approval` event during `transferFrom` operations. * * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to * true using the following override: * ``` * function _approve(address owner, address spender, uint256 value, bool) internal virtual override { * super._approve(owner, spender, value, true); * } * ``` * * Requirements are the same as {_approve}. */ function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual { if (owner == address(0)) { revert ERC20InvalidApprover(address(0)); } if (spender == address(0)) { revert ERC20InvalidSpender(address(0)); } _allowances[owner][spender] = value; if (emitEvent) { emit Approval(owner, spender, value); } } /** * @dev Updates `owner` s allowance for `spender` based on spent `value`. * * Does not update the allowance value in case of infinite allowance. * Revert if not enough allowance is available. * * Does not emit an {Approval} event. */ function _spendAllowance(address owner, address spender, uint256 value) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { if (currentAllowance < value) { revert ERC20InsufficientAllowance(spender, currentAllowance, value); } unchecked { _approve(owner, spender, currentAllowance - value, false); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 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 v5.0.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the 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 v5.0.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; import {IERC20Permit} from "../extensions/IERC20Permit.sol"; import {Address} from "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev An operation with an ERC20 token failed. */ error SafeERC20FailedOperation(address token); /** * @dev Indicates a failed `decreaseAllowance` request. */ error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease); /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value))); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value))); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); forceApprove(token, spender, oldAllowance + value); } /** * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no * value, non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal { unchecked { uint256 currentAllowance = token.allowance(address(this), spender); if (currentAllowance < requestedDecrease) { revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease); } forceApprove(token, spender, currentAllowance - requestedDecrease); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value)); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0))); _callOptionalReturn(token, approvalCall); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data); if (returndata.length != 0 && !abi.decode(returndata, (bool))) { revert SafeERC20FailedOperation(address(token)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol) pragma solidity ^0.8.20; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error AddressInsufficientBalance(address account); /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedInnerCall(); /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert AddressInsufficientBalance(address(this)); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert FailedInnerCall(); } } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {FailedInnerCall} error. * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert AddressInsufficientBalance(address(this)); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an * unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {FailedInnerCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}. */ function _revert(bytes memory returndata) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert FailedInnerCall(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol) pragma solidity ^0.8.20; /** * @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; /** * @dev Unauthorized reentrant call. */ error ReentrancyGuardReentrantCall(); 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 if (_status == ENTERED) { revert ReentrancyGuardReentrantCall(); } // 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; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { return _status == ENTERED; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; contract ClaimableAdminStorage { /** * @notice Administrator for this contract */ address public admin; /** * @notice Pending administrator for this contract */ address public pendingAdmin; /*** Modifiers ***/ modifier onlyAdmin() { require(msg.sender == admin, "ONLY_ADMIN"); _; } /*** Constructor ***/ constructor() { // Set admin to caller admin = msg.sender; } } contract AcceptableImplementationClaimableAdminStorage is ClaimableAdminStorage { /** * @notice Active logic */ address public implementation; /** * @notice Pending logic */ address public pendingImplementation; } contract AcceptableRegistryImplementationClaimableAdminStorage is AcceptableImplementationClaimableAdminStorage { /** * @notice System Registry */ address public registry; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; import "./AcceptableImplementationClaimableAdminStorage.sol"; /** * @title Claimable Admin */ contract ClaimableAdmin is ClaimableAdminStorage { /** * @notice Emitted when pendingAdmin is changed */ event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin); /** * @notice Emitted when pendingAdmin is accepted, which means admin is updated */ event NewAdmin(address oldAdmin, address newAdmin); /*** Admin Functions ***/ /** * @notice Begins transfer of admin rights. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer. * @dev Admin function to begin change of admin. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer. * @param newPendingAdmin New pending admin. */ function _setPendingAdmin(address newPendingAdmin) public { // Check caller = admin require(msg.sender == admin, "Not Admin"); // Save current value, if any, for inclusion in log address oldPendingAdmin = pendingAdmin; // Store pendingAdmin with value newPendingAdmin pendingAdmin = newPendingAdmin; // Emit NewPendingAdmin(oldPendingAdmin, newPendingAdmin) emit NewPendingAdmin(oldPendingAdmin, newPendingAdmin); } /** * @notice Accepts transfer of admin rights. msg.sender must be pendingAdmin * @dev Admin function for pending admin to accept role and update admin */ function _acceptAdmin() public { // Check caller is pendingAdmin and pendingAdmin ≠ address(0) require( msg.sender == pendingAdmin && pendingAdmin != address(0), "Not the EXISTING pending admin" ); // Save current values for inclusion in log address oldAdmin = admin; address oldPendingAdmin = pendingAdmin; // Store admin with value pendingAdmin admin = pendingAdmin; // Clear the pending value pendingAdmin = address(0); emit NewAdmin(oldAdmin, admin); emit NewPendingAdmin(oldPendingAdmin, pendingAdmin); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; interface IContractRegistryBase { function isImplementationValidForProxy( bytes32 proxyNameHash, address _implementation ) external view returns (bool); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; import {ChipEnumsV1} from "../interfaces/ChipEnumsV1.sol"; import "../interfaces/IRegistryV1.sol"; /** * @title BaseChip * @notice Base for Chip contracts to inherit from, handles the auto approval mechanism. */ contract BaseChip is ChipEnumsV1 { // ***** Events ***** event AutoApprovedSpenderSet( string indexed role, address indexed oldSpender, address indexed newSpender ); // ***** Immutable Storage ***** IRegistryV1 public immutable registry; ChipMode public immutable chipMode; // ***** Storage ***** // address => is auto approved mapping(address => bool) public autoApproved; // role hash => role address mapping(bytes32 => address) public autoApprovedSpendersByRoles; // ***** Views ***** function getAutoApprovedSpenderAddressByRole( string calldata role ) public view returns (address) { bytes32 roleHash = keccak256(abi.encodePacked(role)); return autoApprovedSpendersByRoles[roleHash]; } // ***** Constructor ***** constructor(IRegistryV1 _registry, ChipMode _chipMode) { require(address(_registry) != address(0), "!_registry"); registry = _registry; chipMode = _chipMode; } // ***** Admin Functions ***** function setAutoApprovedSpenderForRoleInternal( string calldata role, address spender ) internal { require( spender == address(0) || registry.getValidSpenderTargetForChipByRole(address(this), role) == spender, "NOT_REGISTRY_APPROVED" ); address oldSpender = getAutoApprovedSpenderAddressByRole(role); autoApproved[oldSpender] = false; autoApproved[spender] = true; bytes32 roleHash = keccak256(abi.encodePacked(role)); autoApprovedSpendersByRoles[roleHash] = spender; emit AutoApprovedSpenderSet(role, oldSpender, spender); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/utils/ReentrancyGuard.sol"; import "../../interfaces/IPoolMintControllerV1.sol"; import "../../interfaces/IPoolBurnControllerV1.sol"; import "../../interfaces/IBurnHandlerV1.sol"; import "../../../AdministrationContracts/ClaimableAdmin.sol"; import "../BaseChip.sol"; /** * @title EngineChip * @notice EngineChip is a ERC20 token that functions as a chip for ERC20 tokens that exist in the engin chain */ contract EngineChip is ClaimableAdmin, ERC20, ReentrancyGuard, BaseChip { using SafeERC20 for IERC20; using SafeERC20 for ERC20; // ***** Events ***** event IsMintingPausedSet(bool indexed value); event BurnHandlerSet( address indexed previousHandler, address indexed handler ); event MintControllerSet( address indexed previousController, address indexed newController ); event BurnControllerSet( address indexed previousController, address indexed newController ); event TokensSwept( address indexed token, address indexed receiver, uint256 amount ); event ChipMinted( address indexed minter, address indexed to, uint256 underlyingAmount, uint256 amount ); event ChipBurned( address indexed burner, address indexed receiver, uint256 underlyingAmount, uint256 amount ); // ***** Constants ***** uint public constant SELF_UNIT_SCALE = 1e18; // ***** Storage ***** IERC20 public immutable underlyingToken; uint256 public immutable exchangeRate; IBurnHandlerV1 public burnHandler; bool public isMintingPaused; IPoolMintControllerV1 public mintController; IPoolBurnControllerV1 public burnController; // ***** Constructor ***** constructor( IRegistryV1 _registry, string memory _name, string memory _symbol, IERC20 _underlyingToken, address _initialAdmin ) ERC20(_name, _symbol) BaseChip(_registry, ChipMode.LOCAL) { require(address(_underlyingToken) != address(0), "!_underlyingToken"); underlyingToken = _underlyingToken; uint underlyingDecimals = ERC20(address(_underlyingToken)).decimals(); exchangeRate = 10 ** underlyingDecimals; admin = _initialAdmin; emit NewAdmin(address(0), _initialAdmin); } // ***** Admin Functions ***** /** * @notice Set the auto approved spender for a role * @param role The role to set the spender for * @param spender The spender to set */ function setAutoApprovedSpenderForRole( string calldata role, address spender ) external onlyAdmin { setAutoApprovedSpenderForRoleInternal(role, spender); } /** * @notice Set the burn handler for the pool * @param _handler The new burn handler */ function setBurnHandler(IBurnHandlerV1 _handler) external onlyAdmin { require( address(_handler) == address(0) || registry.validBurnHandlerForChip(address(this)) == address(_handler), "NOT_REGISTRY_APPROVED" ); address previousHandler = address(burnHandler); require(previousHandler != address(_handler), "ALREADY_SET"); burnHandler = _handler; emit BurnHandlerSet(previousHandler, address(_handler)); } /** * @notice Set the minting pause state * @param _value The new minting pause state */ function setIsMintingPaused(bool _value) external onlyAdmin { require(isMintingPaused != _value, "ALREADY_SET"); isMintingPaused = _value; emit IsMintingPausedSet(_value); } /** * @notice Set the mint controller for the pool * @param _mintController The new mint controller */ function setMintController( IPoolMintControllerV1 _mintController ) external onlyAdmin { // Sanity require( address(_mintController) == address(0) || _mintController.isPoolMintController(), "NOT_POOL_MINT_CONTROLLER" ); address previousController = address(mintController); require(previousController != address(_mintController), "ALREADY_SET"); mintController = _mintController; emit MintControllerSet(previousController, address(_mintController)); } /** * @notice Set the burn controller for the pool * @param _burnController The new burn controller */ function setBurnController( IPoolBurnControllerV1 _burnController ) external onlyAdmin { // Sanity require( address(_burnController) == address(0) || _burnController.isPoolBurnController(), "NOT_POOL_BURN_CONTROLLER" ); address previousController = address(burnController); require(previousController != address(_burnController), "ALREADY_SET"); burnController = _burnController; emit BurnControllerSet(previousController, address(_burnController)); } /** * @notice Sweep any non-underlying tokens from the contract * @dev Owner can sweep any tokens other than the underlying token * @param _token The token to sweep * @param _amount The amount to sweep */ function sweepTokens(IERC20 _token, uint256 _amount) external onlyAdmin { require( address(_token) != address(underlyingToken), "CANNOT_SWEEP_UNDERLYING_TOKEN" ); _token.safeTransfer(admin, _amount); emit TokensSwept(address(_token), admin, _amount); } /** * @notice Sweep native coin from the contract * @dev Owner can sweep any native coin accidentally sent to the contract * @param _amount The amount to sweep */ function sweepNative(uint256 _amount) external onlyAdmin { payable(admin).transfer(_amount); } // ***** Local Mint/Burn Functions ***** /** * Mint chips to the given address against underlying tokens taken from the caller * @param _toAddress The address to mint the chips to * @param _amount The amount of underlying tokens to mint against */ function mintChip(address _toAddress, uint256 _amount) external nonReentrant { require(!isMintingPaused, "MINT_PAUSED"); require(_amount != 0, "AMOUNT_ZERO"); address minter = msg.sender; takeUnderlying(minter, _amount); uint ownAmountToMint = underlyingAmountToOwnAmountInternal(_amount); IPoolMintControllerV1 _mintController = mintController; if (address(_mintController) != address(0)) { bool isPermitted = _mintController.informMintRequest( minter, _toAddress, _amount, ownAmountToMint ); require(isPermitted, "MINT_CONTROLLER_REFUSAL"); } _mint(_toAddress, ownAmountToMint); emit ChipMinted(minter, _toAddress, _amount, ownAmountToMint); } /** * Burn chips from the caller and transfer the underlying tokens to the 'toAddress' * @param _receiver The address to receive the underlying tokens * @param _amount The amount of chips to burn */ function burnChip(address _receiver, uint256 _amount) external nonReentrant { address burner = msg.sender; safeBurnInternal(burner, _receiver, _amount); } /** * Burn chips from the caller and transfer the underlying tokens to the 'burnHandler' and calls it's 'handleBurn' function * @param _amount The amount of chips to burn * @param _payload The payload to pass to the burn handler */ function burnChipAndCall( uint256 _amount, bytes calldata _payload ) external payable nonReentrant { require(burnHandler != IBurnHandlerV1(address(0)), "NO_BURN_HANDLER"); // burn the chips address burner = msg.sender; uint256 underlyingAmount = safeBurnInternal( burner, address(burnHandler), _amount ); // call the burn handler burnHandler.handleBurn{value: msg.value}( burner, _amount, underlyingAmount, _payload ); } // ***** burn internal Functions ***** /** * Safely burns the chips and transfers the underlying tokens to the receiver * @param burner The address of the burner * @param receiver The address to receive the underlying tokens * @param chipAmount The amount of chips to burn * @return underlyingAmount The amount of underlying tokens transferred */ function safeBurnInternal( address burner, address receiver, uint256 chipAmount ) internal returns (uint256 underlyingAmount) { // sanity require(chipAmount != 0, "AMOUNT_ZERO"); // Convert the chip amount to underlying amount underlyingAmount = ownAmountToUnderlyingAmountInternal(chipAmount); // sanity require(underlyingAmount != 0, "UNDERLYING_AMOUNT_ZERO"); // Inform the burn controller IPoolBurnControllerV1 _burnController = burnController; if (address(_burnController) != address(0)) { bool isPermitted = _burnController.informBurnRequest( burner, receiver, underlyingAmount, chipAmount ); require(isPermitted, "BURN_CONTROLLER_REFUSAL"); } // Burn the chips _burn(burner, chipAmount); // Transfer the underlying tokens to the receiver underlyingToken.safeTransfer(receiver, underlyingAmount); // emit event emit ChipBurned(burner, receiver, underlyingAmount, chipAmount); } // ***** ERC20 internal override Functions ***** /** * @notice Uses the base ERC20 logic unless 'spender' is marked as 'autoApproved' */ function allowance( address owner, address spender ) public view virtual override returns (uint256) { if (autoApproved[spender]) { return type(uint).max; } else { return ERC20.allowance(owner, spender); } } // ***** Underlying utils ***** /** * Utility function to safely take underlying tokens (ERC20) from a pre-approved account * @dev Will revert if the contract will not get the exact 'amount' value */ function takeUnderlying(address from, uint amount) internal { uint balanceBefore = underlyingToken.balanceOf(address(this)); underlyingToken.safeTransferFrom(from, address(this), amount); uint balanceAfter = underlyingToken.balanceOf(address(this)); require(balanceAfter - balanceBefore == amount, "DID_NOT_RECEIVE_EXACT"); } /** * Converts the underlying amount to the amount of self tokens by the current exchange rate */ function underlyingAmountToOwnAmountInternal( uint256 underlyingAmount ) internal view returns (uint256 ownAmount) { ownAmount = (underlyingAmount * SELF_UNIT_SCALE) / exchangeRate; } /** * Converts the (self) LP amount to the equal underlying amount by the current exchange rate */ function ownAmountToUnderlyingAmountInternal( uint256 ownAmount ) internal view returns (uint256 underlyingAmount) { underlyingAmount = (ownAmount * exchangeRate) / SELF_UNIT_SCALE; } }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.24; contract ChipEnumsV1 { enum ChipMode { NONE, LOCAL, REMOTE, HYBRID } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; interface IBurnHandlerV1 { function handleBurn( address burner, uint256 chipAmount, uint256 underlyingAmount, bytes calldata payload ) external payable; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; interface IGlobalLock { function lock() external; function freeLock() external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; interface ILynxVersionedContract { /** * @notice Returns the name of the contract */ function getContractName() external view returns (string memory); /** * @notice Returns the version of the contract * @dev units are scaled by 1000 (1,000 = 1.00, 1,120 = 1.12) */ function getContractVersion() external view returns (string memory); }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.24; interface IPoolBurnControllerV1 { /** * @notice Check if the contract is a PoolBurnController */ function isPoolBurnController() external view returns (bool); /** * @notice Inform the PoolBurnController of a burn request * param _burner The address of the account that is burning the tokens * param _receiver The address of the account that will receive the underlying tokens * param _underlyingAmount The amount of underlying tokens that will be given for burning * param _burnAmount The amount of tokens that will be burned */ function informBurnRequest( address _burner, address _receiver, uint256 _underlyingAmount, uint256 _burnAmount ) external returns (bool isPermitted); }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.24; interface IPoolMintControllerV1 { /** * @notice Check if the contract is a PoolMintController */ function isPoolMintController() external view returns (bool); /** * @notice Inform the PoolMintController of a mint request * param _minter The address of the account that is minting the tokens * param _to The address of the account that is minting the tokens * param _underlyingAmount The amount of underlying tokens that were taken for minting * param _mintAmount The amount of tokens that will be minted */ function informMintRequest( address _minter, address _to, uint256 _underlyingAmount, uint256 _mintAmount ) external returns (bool isPermitted); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; import "../../AdministrationContracts/IContractRegistryBase.sol"; import "./IGlobalLock.sol"; interface IRegistryV1Functionality is IContractRegistryBase, IGlobalLock { // **** Locking mechanism **** function isTradersPortalAndLocker( address _address ) external view returns (bool); function isTriggersAndLocker(address _address) external view returns (bool); function isTradersPortalOrTriggersAndLocker( address _address ) external view returns (bool); } interface IRegistryV1 is IRegistryV1Functionality { // **** Public Storage params **** function feesManagers(address asset) external view returns (address); function orderBook() external view returns (address); function tradersPortal() external view returns (address); function triggers() external view returns (address); function tradeIntentsVerifier() external view returns (address); function liquidityIntentsVerifier() external view returns (address); function chipsIntentsVerifier() external view returns (address); function lexProxiesFactory() external view returns (address); function chipsFactory() external view returns (address); /** * @return An array of all supported trading floors */ function getAllSupportedTradingFloors() external view returns (address[] memory); /** * @return An array of all supported settlement assets */ function getSettlementAssetsForTradingFloor( address _tradingFloor ) external view returns (address[] memory); /** * @return The spender role address that is set for this chip */ function getValidSpenderTargetForChipByRole( address chip, string calldata role ) external view returns (address); /** * @return the address of the valid 'burnHandler' for the chip */ function validBurnHandlerForChip( address chip ) external view returns (address); /** * @return The address matching for the given role */ function getDynamicRoleAddress( string calldata _role ) external view returns (address); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; import {ILynxVersionedContract} from "../../../interfaces/ILynxVersionedContract.sol"; abstract contract SingleContractDeployerBase is ILynxVersionedContract { // ***** Events ***** event FactoryRoleSet( address indexed previousFactoryRole, address indexed newFactoryRole ); event ContractDeployed(address indexed newContract); // ***** Immutable ***** // For readability only, should not use this value for on-chain logic string public DEPLOYED_CONTRACT_NAME; string public DEPLOYED_CONTRACT_VERSION; // ***** Storage ***** address[] public allDeployedContracts; // contract address => was deployed by this contract mapping(address => bool) public wasDeployedFromHere; // ***** Modifiers ***** modifier onlyFactoryRole() { require(msg.sender == getFactoryRole(), "NOT_FACTORY_ROLE"); _; } // ***** Views ***** function getDeployedContractName() external view returns (string memory) { return DEPLOYED_CONTRACT_NAME; } function getAllDeployedContractsAddresses() external view returns (address[] memory) { return allDeployedContracts; } // ***** Public Virtual Views ***** function getFactoryRole() public virtual returns (address); // ***** Constructor ***** constructor( string memory _deployedContractName, string memory _deployedContractVersion ) { DEPLOYED_CONTRACT_NAME = _deployedContractName; DEPLOYED_CONTRACT_VERSION = _deployedContractVersion; } // ***** Deployer Functions ***** function deploySingleContract( bytes calldata payload ) public onlyFactoryRole returns (address) { address deployedContract = deploySingleContractInternal(payload); onContractDeployed(deployedContract); return deployedContract; } // ***** Internal Functions ***** function onContractDeployed(address _deployedContract) internal { // Sanity require(!wasDeployedFromHere[_deployedContract], "HANDLER_ALREADY_CALLED"); // State allDeployedContracts.push(_deployedContract); wasDeployedFromHere[_deployedContract] = true; // Events emit ContractDeployed(_deployedContract); } // ***** Internal Virtual Functions ***** function deploySingleContractInternal( bytes calldata payload ) internal virtual returns (address); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.24; import {SingleContractDeployerBase} from "../baseContracts/SingleContractDeployerBase.sol"; import {IRegistryV1} from "../../../interfaces/IRegistryV1.sol"; import {EngineChip, IERC20} from "../../../Chips/EngineChip/EngineChip.sol"; contract EngineChipDeployer is SingleContractDeployerBase { // ***** Constants (ILynxVersionedContract interface) ***** string public constant CONTRACT_NAME = "EngineChipDeployer"; string public constant CONTRACT_VERSION = "1000"; // 1.0 // ***** Views (ILynxVersionedContract interface) ***** function getContractName() external pure override returns (string memory) { return CONTRACT_NAME; } function getContractVersion() external pure override returns (string memory) { return CONTRACT_VERSION; } // ***** Storage ***** /** * @notice System Registry */ address public immutable registry; // ***** Public Override Views ***** function getFactoryRole() public override returns (address) { return IRegistryV1(registry).chipsFactory(); } // ***** Constructor ***** constructor( address _registry ) SingleContractDeployerBase( "EngineChip", // 1.0 "1000" ) { registry = _registry; } // ***** Deployment Functions ***** function deployEngineChip( string memory _name, string memory _symbol, address _underlyingToken, address _initialAdmin ) external onlyFactoryRole returns (address) { address freshEngineChip = deployEngineChipInternal( _name, _symbol, _underlyingToken, _initialAdmin ); // Call base hook onContractDeployed(freshEngineChip); return freshEngineChip; } // ***** Internal Override Functions ***** /** * @notice Implements the 'SingleContractDeployerBase' generic deploy function */ function deploySingleContractInternal( bytes calldata payload ) internal override returns (address) { ( string memory name, string memory symbol, address underlyingToken, address initialAdmin ) = abi.decode(payload, (string, string, address, address)); // Continue in the deployment return deployEngineChipInternal(name, symbol, underlyingToken, initialAdmin); } // ***** Internal Deployment Functions ***** function deployEngineChipInternal( string memory _name, string memory _symbol, address _underlyingToken, address _initialAdmin ) internal returns (address) { // Sanity checks require(bytes(_name).length > 0, "NO_NAME"); require(bytes(_symbol).length > 0, "NO_SYMBOL"); require(_underlyingToken != address(0), "NO_UNDERLYING_TOKEN"); require(_initialAdmin != address(0), "NO_INITIAL_ADMIN"); address freshEngineChip = address( new EngineChip( IRegistryV1(registry), _name, _symbol, IERC20(_underlyingToken), _initialAdmin ) ); return freshEngineChip; } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "paris", "metadata": { "useLiteralContent": true }, "libraries": {} }
Contract Security Audit
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Contract ABI
API[{"inputs":[{"internalType":"address","name":"_registry","type":"address"},{"internalType":"address","name":"_engineChipDeployer","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"caller","type":"address"},{"indexed":true,"internalType":"bool","name":"isApproved","type":"bool"}],"name":"ApprovedCallerSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":true,"internalType":"address","name":"caller","type":"address"},{"indexed":true,"internalType":"address","name":"engineChip","type":"address"},{"indexed":false,"internalType":"string","name":"symbol","type":"string"}],"name":"EngineChipDeployed","type":"event"},{"inputs":[],"name":"CHIPS_DEPLOYER_ROLE_KEY","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CONTRACT_NAME","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CONTRACT_VERSION","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"allAssetsDeployedFor","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"allAssetsWithEngineChip","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"a","type":"string"},{"internalType":"string","name":"b","type":"string"}],"name":"compareStrings","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"address","name":"_asset","type":"address"},{"internalType":"address","name":"_initialAdmin","type":"address"}],"name":"deployEngineChipForAsset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"engineChipDeployer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"engineChipForAsset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllAssetsDeployedFor","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllAssetsWithEngineChip","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getContractName","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getContractVersion","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"registry","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000004cf3d61165a6be8ff741320ad27cab57fae5c207000000000000000000000000bbfb3de45c96413818094e40cb9c042cb1943f7d
-----Decoded View---------------
Arg [0] : _registry (address): 0x4CF3d61165a6Be8FF741320ad27Cab57faE5c207
Arg [1] : _engineChipDeployer (address): 0xBBfB3De45C96413818094E40Cb9c042CB1943f7D
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000004cf3d61165a6be8ff741320ad27cab57fae5c207
Arg [1] : 000000000000000000000000bbfb3de45c96413818094e40cb9c042cb1943f7d
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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.