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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0xaFEe6558...6227351Ef The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
FPair
Compiler Version
v0.8.20+commit.a1b79de6
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity ^0.8.20;import "openzeppelin-contracts/contracts/utils/ReentrancyGuard.sol";import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";import "openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";import "./IFPair.sol";contract FPair is IFPair, ReentrancyGuard {using SafeERC20 for IERC20;address public router;address public tokenA;address public tokenB;struct Pool {uint256 reserve0;uint256 reserve1;uint256 k;uint256 lastUpdated;}Pool private _pool;event Mint(uint256 reserve0, uint256 reserve1);
1234567891011121314151617181920212223242526// 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
1234567891011121314151617181920212223242526// 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.*/
1234567891011121314151617181920212223242526// 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);
123456789101112131415161718192021222324// SPDX-License-Identifier: MITpragma solidity ^0.8.20;interface IFPair {function getReserves() external view returns (uint256, uint256);function assetBalance() external view returns (uint256);function balance() external view returns (uint256);function mint(uint256 reserve0, uint256 reserve1) external returns (bool);function transferAsset(address recipient, uint256 amount) external;function transferTo(address recipient, uint256 amount) external;function swap(uint256 amount0In, uint256 amount0Out, uint256 amount1In, uint256 amount1Out)externalreturns (bool);function kLast() external view returns (uint256);function approval(address _user, address _token, uint256 amount) external returns (bool);}
1234567891011121314151617181920212223242526// 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);
1234567891011121314151617181920212223242526// 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
1234567891011121314151617181920212223242526{"remappings": ["@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/","@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/","ds-test/=lib/openzeppelin-contracts-upgradeable/lib/forge-std/lib/ds-test/src/","erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/","forge-std/=lib/forge-std/src/","openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/","openzeppelin-contracts/=lib/openzeppelin-contracts/","v2-core/=lib/v2-core/contracts/","v2-periphery/=lib/v2-periphery/contracts/"],"optimizer": {"enabled": true,"runs": 200},"metadata": {"useLiteralContent": false,"bytecodeHash": "ipfs","appendCBOR": true},"outputSelection": {"*": {"*": ["evm.bytecode","evm.deployedBytecode",
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"router_","type":"address"},{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[],"name":"AlreadyMinted","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[],"name":"Unauthorized","type":"error"},{"inputs":[],"name":"ZeroAddressUnallowed","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"reserve0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"reserve1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"}],"name":"Swap","type":"event"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approval","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"assetBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"balance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPoolInfo","outputs":[{"components":[{"internalType":"uint256","name":"reserve0","type":"uint256"},{"internalType":"uint256","name":"reserve1","type":"uint256"},{"internalType":"uint256","name":"k","type":"uint256"},{"internalType":"uint256","name":"lastUpdated","type":"uint256"}],"internalType":"struct FPair.Pool","name":"","type":"tuple"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"reserve0","type":"uint256"},{"internalType":"uint256","name":"reserve1","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"priceALast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"priceBLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"router","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount0In","type":"uint256"},{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1In","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"}],"name":"swap","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"tokenA","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenB","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferAsset","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferTo","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Deployed Bytecode
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