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Transaction Hash
Method
Block
From
To
Migrate With Dep...204881142021-10-22 13:03:481002 days ago1634907828IN
0x73318285...96d5DCFc9
0 MATIC0.013844730
Migrate With Dep...197340802021-10-01 22:04:131023 days ago1633125853IN
0x73318285...96d5DCFc9
0 MATIC0.0056892312
Migrate With Dep...185312812021-08-29 21:06:561056 days ago1630271216IN
0x73318285...96d5DCFc9
0 MATIC0.001954084.44
Migrate With Dep...183005582021-08-23 9:39:281062 days ago1629711568IN
0x73318285...96d5DCFc9
0 MATIC0.003973238.69018483
Migrate182266412021-08-21 9:12:231064 days ago1629537143IN
0x73318285...96d5DCFc9
0 MATIC0.000367431.256742
Migrate With Dep...181451802021-08-19 4:43:301067 days ago1629348210IN
0x73318285...96d5DCFc9
0 MATIC0.0152765733.58028231
Migrate180869752021-08-17 15:11:511068 days ago1629213111IN
0x73318285...96d5DCFc9
0 MATIC0.000312811.1
Migrate With Dep...180647712021-08-17 0:54:561069 days ago1629161696IN
0x73318285...96d5DCFc9
0 MATIC0.00220065
Migrate180605982021-08-16 22:02:571069 days ago1629151377IN
0x73318285...96d5DCFc9
0 MATIC0.000327341.11
Migrate With Dep...179482302021-08-13 19:19:121072 days ago1628882352IN
0x73318285...96d5DCFc9
0 MATIC0.000960162.1
Migrate177631392021-08-08 17:24:041077 days ago1628443444IN
0x73318285...96d5DCFc9
0 MATIC0.000328971.110111
Migrate With Dep...177182642021-08-07 12:30:421078 days ago1628339442IN
0x73318285...96d5DCFc9
0 MATIC0.0090842423
Migrate176878962021-08-06 16:57:361079 days ago1628269056IN
0x73318285...96d5DCFc9
0 MATIC0.000344641.05
Migrate With Dep...176777102021-08-06 10:29:041079 days ago1628245744IN
0x73318285...96d5DCFc9
0 MATIC0.002206215
Migrate With Dep...176432732021-08-05 9:47:051080 days ago1628156825IN
0x73318285...96d5DCFc9
0 MATIC0.000528241.2
Migrate With Dep...176421212021-08-05 9:04:411080 days ago1628154281IN
0x73318285...96d5DCFc9
0 MATIC0.0104814724.36
Migrate With Dep...175620012021-08-03 5:55:021083 days ago1627970102IN
0x73318285...96d5DCFc9
0 MATIC0.0045526410
Migrate With Dep...175372122021-08-02 14:44:511083 days ago1627915491IN
0x73318285...96d5DCFc9
0 MATIC0.001141352.60491396
Migrate With Dep...175294552021-08-02 9:16:591083 days ago1627895819IN
0x73318285...96d5DCFc9
0 MATIC0.002642036
Migrate174858662021-08-01 6:00:111085 days ago1627797611IN
0x73318285...96d5DCFc9
0 MATIC0.001570925.32
Migrate With Dep...174354642021-07-30 19:47:321086 days ago1627674452IN
0x73318285...96d5DCFc9
0 MATIC0.003227517.60558821
Migrate With Dep...174309362021-07-30 16:52:281086 days ago1627663948IN
0x73318285...96d5DCFc9
0 MATIC0.002111425
Migrate With Dep...174308242021-07-30 16:48:361086 days ago1627663716IN
0x73318285...96d5DCFc9
0 MATIC0.001031122.2644
Migrate With Dep...174274592021-07-30 14:42:091086 days ago1627656129IN
0x73318285...96d5DCFc9
0 MATIC0.011184925
Migrate With Dep...174273142021-07-30 14:37:071086 days ago1627655827IN
0x73318285...96d5DCFc9
0 MATIC0.0103158225.09
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Latest 25 internal transactions (View All)

Parent Transaction Hash Block From To
204881142021-10-22 13:03:481002 days ago1634907828
0x73318285...96d5DCFc9
0.03130563 MATIC
204881142021-10-22 13:03:481002 days ago1634907828
0x73318285...96d5DCFc9
0.03130563 MATIC
197340802021-10-01 22:04:131023 days ago1633125853
0x73318285...96d5DCFc9
1,021.3536668 MATIC
197340802021-10-01 22:04:131023 days ago1633125853
0x73318285...96d5DCFc9
1,021.3536668 MATIC
185312812021-08-29 21:06:561056 days ago1630271216
0x73318285...96d5DCFc9
0.51021831 MATIC
185312812021-08-29 21:06:561056 days ago1630271216
0x73318285...96d5DCFc9
0.51021831 MATIC
183005582021-08-23 9:39:281062 days ago1629711568
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39.89294371 MATIC
183005582021-08-23 9:39:281062 days ago1629711568
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39.89294371 MATIC
181451802021-08-19 4:43:301067 days ago1629348210
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18.87595756 MATIC
181451802021-08-19 4:43:301067 days ago1629348210
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18.87595756 MATIC
180647712021-08-17 0:54:561069 days ago1629161696
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89.42074108 MATIC
180647712021-08-17 0:54:561069 days ago1629161696
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89.42074108 MATIC
179482302021-08-13 19:19:121072 days ago1628882352
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33.06815917 MATIC
179482302021-08-13 19:19:121072 days ago1628882352
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33.06815917 MATIC
177631392021-08-08 17:24:041077 days ago1628443444
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863.19898706 MATIC
177631392021-08-08 17:24:041077 days ago1628443444
0x73318285...96d5DCFc9
863.19898706 MATIC
177182642021-08-07 12:30:421078 days ago1628339442
0x73318285...96d5DCFc9
1.14375951 MATIC
177182642021-08-07 12:30:421078 days ago1628339442
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1.14375951 MATIC
176878962021-08-06 16:57:361079 days ago1628269056
0x73318285...96d5DCFc9
0.48461185 MATIC
176878962021-08-06 16:57:361079 days ago1628269056
0x73318285...96d5DCFc9
0.48461185 MATIC
176777102021-08-06 10:29:041079 days ago1628245744
0x73318285...96d5DCFc9
220.27693425 MATIC
176777102021-08-06 10:29:041079 days ago1628245744
0x73318285...96d5DCFc9
220.27693425 MATIC
176432732021-08-05 9:47:051080 days ago1628156825
0x73318285...96d5DCFc9
0.01803072 MATIC
176432732021-08-05 9:47:051080 days ago1628156825
0x73318285...96d5DCFc9
0.01803072 MATIC
176421212021-08-05 9:04:411080 days ago1628154281
0x73318285...96d5DCFc9
743.71636423 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:
PolydexMigratorDFYN

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 13 : PolydexMigratorDFYN.sol
// SPDX-License-Identifier: MIT

pragma solidity =0.7.6;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "../interfaces/IPolydexPair.sol";
import "../interfaces/IPolydexRouter.sol";
import "../interfaces/IPolydexFactory.sol";
import "../libraries/PolydexLibrary.sol";
import "../interfaces/IFarm.sol";
import '../interfaces/IWETH.sol';
import "../interfaces/IStakingPool.sol";

// Migrator helps you migrate your existing LP tokens to Polydex LP ones
contract PolydexMigratorDFYN {
using SafeERC20 for IERC20;

    IPolydexRouter public oldRouter;
    IPolydexRouter public router;
    address public WETH;
    address public dfynWeth;


    constructor(IPolydexRouter _oldRouter, IPolydexRouter _router, address _WETH, address _dfynWeth) {
        oldRouter = _oldRouter;
        router = _router;
        dfynWeth = _dfynWeth;
        WETH = _WETH;
    }

    receive() external payable {
        assert(msg.sender == dfynWeth || msg.sender == WETH); // only accept ETH via fallback from the WETH and dfynWETH contract
    }

    function migrateWithPermit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public {
        IPolydexPair pair = IPolydexPair(pairForOldRouter(tokenA, tokenB));
        pair.permit(msg.sender, address(this), liquidity, deadline, v, r, s);

        migrate(tokenA, tokenB, liquidity, amountAMin, amountBMin, deadline);
    }

    // msg.sender should have approved 'liquidity' amount of LP token of 'tokenA' and 'tokenB'
    function migrate(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        uint256 deadline
    ) public {
        require(deadline >= block.timestamp, 'Swap: EXPIRED');
        address TokenA = tokenA;
        address TokenB = tokenB;
        // Remove liquidity from the old router with permit
        (uint256 amountA, uint256 amountB) = removeLiquidity(
            tokenA,
            tokenB,
            liquidity,
            amountAMin,
            amountBMin
        );

        if( tokenA == dfynWeth){
          IWETH(dfynWeth).withdraw(amountA);
          IWETH(WETH).deposit{value: amountA}();
          TokenA = WETH;
        }

        if( tokenB == dfynWeth){
          IWETH(dfynWeth).withdraw(amountB);
          IWETH(WETH).deposit{value: amountB}();
          TokenB = WETH;
        }

        // Add liquidity to the new router
        (uint256 pooledAmountA, uint256 pooledAmountB) = addLiquidity(TokenA, TokenB, amountA, amountB);

        // Send remaining tokens to msg.sender
        if (amountA > pooledAmountA) {
            IERC20(TokenA).safeTransfer(msg.sender, amountA - pooledAmountA);
        }
        if (amountB > pooledAmountB) {
            IERC20(TokenB).safeTransfer(msg.sender, amountB - pooledAmountB);
        }
    }

    function migrateWithDeposit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        uint256 deadline,
        address _Farm,
        uint256 pid
    ) public {
        require(deadline >= block.timestamp, 'Swap: EXPIRED');
        address TokenA = tokenA;
        address TokenB = tokenB;
        // Remove liquidity from the old router with permit
        (uint256 amountA, uint256 amountB) = removeLiquidity(
            tokenA,
            tokenB,
            liquidity,
            amountAMin,
            amountBMin
        );

        if( tokenA == dfynWeth){
          IWETH(dfynWeth).withdraw(amountA);
          IWETH(WETH).deposit{value: amountA}();
          TokenA = WETH;
        }

        if( tokenB == dfynWeth){
          IWETH(dfynWeth).withdraw(amountB);
          IWETH(WETH).deposit{value: amountB}();
          TokenB = WETH;
        }

        // Add liquidity to the new router
        (uint256 pooledAmountA, uint256 pooledAmountB) = addLiquidityWithDeposit(TokenA, TokenB, amountA, amountB, pid, _Farm);


        // Send remaining tokens to msg.sender
        if (amountA > pooledAmountA) {
            IERC20(TokenA).safeTransfer(msg.sender, amountA - pooledAmountA);
        }
        if (amountB > pooledAmountB) {
            IERC20(TokenB).safeTransfer(msg.sender, amountB - pooledAmountB);
        }
    }

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin
    ) internal returns (uint256 amountA, uint256 amountB) {
        IPolydexPair pair = IPolydexPair(pairForOldRouter(tokenA, tokenB));
        pair.transferFrom(msg.sender, address(pair), liquidity);
        (uint256 amount0, uint256 amount1) = pair.burn(address(this));
        (address token0,) = PolydexLibrary.sortTokens(tokenA, tokenB);
        (amountA, amountB) = tokenA == token0 ? (amount0, amount1) : (amount1, amount0);
        require(amountA >= amountAMin, 'PolyDexMigrator: INSUFFICIENT_A_AMOUNT');
        require(amountB >= amountBMin, 'PolyDexMigrator: INSUFFICIENT_B_AMOUNT');
    }

    // calculates the CREATE2 address for a pair without making any external calls
    function pairForOldRouter(address tokenA, address tokenB) internal view returns (address pair) {
        (address token0, address token1) = PolydexLibrary.sortTokens(tokenA, tokenB);
        pair = address(uint(keccak256(abi.encodePacked(
                hex'ff',
                oldRouter.factory(),
                keccak256(abi.encodePacked(token0, token1)),
                // Init code hash. It would be specific each exchange(different for quickswap, dfyn, etc).
                // So when deploying Migrator, change it.
                hex'f187ed688403aa4f7acfada758d8d53698753b998a3071b06f1b777f4330eaf3' // dfyn init code hash
            ))));
    }

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired
    ) internal returns (uint amountA, uint amountB) {
        (amountA, amountB) = _addLiquidity(tokenA, tokenB, amountADesired, amountBDesired);
        address pair = PolydexLibrary.pairFor(router.factory(), tokenA, tokenB);
        IERC20(tokenA).safeTransfer(pair, amountA);
        IERC20(tokenB).safeTransfer(pair, amountB);
        IPolydexPair(pair).mint(msg.sender);
    }

    function addLiquidityWithDeposit(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 pid,
        address _Farm
    ) internal returns (uint amountA, uint amountB) {
        (amountA, amountB) = _addLiquidity(tokenA, tokenB, amountADesired, amountBDesired);
        address pair = PolydexLibrary.pairFor(router.factory(), tokenA, tokenB);
        IERC20(tokenA).safeTransfer(pair, amountA);
        IERC20(tokenB).safeTransfer(pair, amountB);
        uint256 liquidity = IPolydexPair(pair).mint(address(this));
        IPolydexPair(pair).approve(_Farm,liquidity);
        if(pid == uint256(-1)){
            IStakingPool(_Farm).depositFor(liquidity, msg.sender);
        }else{
            IFarm(_Farm).depositFor(pid, liquidity, msg.sender);
        }
    }


    function _addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired
    ) internal returns (uint256 amountA, uint256 amountB) {
        // create the pair if it doesn't exist yet
        IPolydexFactory factory = IPolydexFactory(router.factory());
        if (factory.getPair(tokenA, tokenB) == address(0)) {
            factory.createPair(tokenA, tokenB);
        }
        (uint256 reserveA, uint256 reserveB) = PolydexLibrary.getReserves(address(factory), tokenA, tokenB);
        if (reserveA == 0 && reserveB == 0) {
            (amountA, amountB) = (amountADesired, amountBDesired);
        } else {
            uint256 amountBOptimal = PolydexLibrary.quote(amountADesired, reserveA, reserveB);
            if (amountBOptimal <= amountBDesired) {
                (amountA, amountB) = (amountADesired, amountBOptimal);
            } else {
                uint256 amountAOptimal = PolydexLibrary.quote(amountBDesired, reserveB, reserveA);
                assert(amountAOptimal <= amountADesired);
                (amountA, amountB) = (amountAOptimal, amountBDesired);
            }
        }
    }
}

File 2 of 13 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) 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 `amount` 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 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @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);
}

File 3 of 13 : SafeERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./IERC20.sol";
import "../../math/SafeMath.sol";
import "../../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 SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @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, "SafeERC20: low-level call failed");
        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 4 of 13 : IPolydexPair.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

interface IPolydexPair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}

File 5 of 13 : IPolydexRouter.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

interface IPolydexRouter {
    function factory() external view returns (address);
    function WETH() external view returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

File 6 of 13 : IPolydexFactory.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

interface IPolydexFactory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);
    function migrator() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
    function setMigrator(address) external;
}

File 7 of 13 : PolydexLibrary.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import '../interfaces/IPolydexPair.sol';

import "./SafeMath.sol";

library PolydexLibrary {
    using SafeMathPolydex for uint;

    // returns sorted token addresses, used to handle return values from pairs sorted in this order
    function sortTokens(address tokenA, address tokenB) internal pure returns (address token0, address token1) {
        require(tokenA != tokenB, 'PolydexLibrary: IDENTICAL_ADDRESSES');
        (token0, token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'PolydexLibrary: ZERO_ADDRESS');
    }

    // calculates the CREATE2 address for a pair without making any external calls
    function pairFor(address factory, address tokenA, address tokenB) internal pure returns (address pair) {
        (address token0, address token1) = sortTokens(tokenA, tokenB);
        pair = address(uint(keccak256(abi.encodePacked(
                hex'ff',
                factory,
                keccak256(abi.encodePacked(token0, token1)),
                hex'8cb41b27c88f8934c0773207afb757d84c4baa607990ad4a30505e42438d999a' // init code hash
            ))));
    }

    // fetches and sorts the reserves for a pair
    function getReserves(address factory, address tokenA, address tokenB) internal view returns (uint reserveA, uint reserveB) {
        (address token0,) = sortTokens(tokenA, tokenB);
        (uint reserve0, uint reserve1,) = IPolydexPair(pairFor(factory, tokenA, tokenB)).getReserves();
        (reserveA, reserveB) = tokenA == token0 ? (reserve0, reserve1) : (reserve1, reserve0);
    }

    // given some amount of an asset and pair reserves, returns an equivalent amount of the other asset
    function quote(uint amountA, uint reserveA, uint reserveB) internal pure returns (uint amountB) {
        require(amountA > 0, 'PolydexLibrary: INSUFFICIENT_AMOUNT');
        require(reserveA > 0 && reserveB > 0, 'PolydexLibrary: INSUFFICIENT_LIQUIDITY');
        amountB = amountA.mul(reserveB) / reserveA;
    }

    // given an input amount of an asset and pair reserves, returns the maximum output amount of the other asset
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) internal pure returns (uint amountOut) {
        require(amountIn > 0, 'PolydexLibrary: INSUFFICIENT_INPUT_AMOUNT');
        require(reserveIn > 0 && reserveOut > 0, 'PolydexLibrary: INSUFFICIENT_LIQUIDITY');
        uint amountInWithFee = amountIn.mul(997);
        uint numerator = amountInWithFee.mul(reserveOut);
        uint denominator = reserveIn.mul(1000).add(amountInWithFee);
        amountOut = numerator / denominator;
    }

    // given an output amount of an asset and pair reserves, returns a required input amount of the other asset
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) internal pure returns (uint amountIn) {
        require(amountOut > 0, 'PolydexLibrary: INSUFFICIENT_OUTPUT_AMOUNT');
        require(reserveIn > 0 && reserveOut > 0, 'PolydexLibrary: INSUFFICIENT_LIQUIDITY');
        uint numerator = reserveIn.mul(amountOut).mul(1000);
        uint denominator = reserveOut.sub(amountOut).mul(997);
        amountIn = (numerator / denominator).add(1);
    }

    // performs chained getAmountOut calculations on any number of pairs
    function getAmountsOut(address factory, uint amountIn, address[] memory path) internal view returns (uint[] memory amounts) {
        require(path.length >= 2, 'PolydexLibrary: INVALID_PATH');
        amounts = new uint[](path.length);
        amounts[0] = amountIn;
        for (uint i; i < path.length - 1; i++) {
            (uint reserveIn, uint reserveOut) = getReserves(factory, path[i], path[i + 1]);
            amounts[i + 1] = getAmountOut(amounts[i], reserveIn, reserveOut);
        }
    }

    // performs chained getAmountIn calculations on any number of pairs
    function getAmountsIn(address factory, uint amountOut, address[] memory path) internal view returns (uint[] memory amounts) {
        require(path.length >= 2, 'PolydexLibrary: INVALID_PATH');
        amounts = new uint[](path.length);
        amounts[amounts.length - 1] = amountOut;
        for (uint i = path.length - 1; i > 0; i--) {
            (uint reserveIn, uint reserveOut) = getReserves(factory, path[i - 1], path[i]);
            amounts[i - 1] = getAmountIn(amounts[i], reserveIn, reserveOut);
        }
    }
}

File 8 of 13 : IFarm.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;

interface IFarm {
    function depositFor(uint256 pid, uint256 amount, address to) external;
}

File 9 of 13 : IWETH.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

interface IWETH {
    function deposit() external payable;
    function transfer(address to, uint value) external returns (bool);
    function withdraw(uint) external;
}

File 10 of 13 : IStakingPool.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;

interface IStakingPool {
    function depositFor(uint256 amount, address to) external;
}

File 11 of 13 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

File 12 of 13 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @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://diligence.consensys.net/posts/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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 13 of 13 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity =0.7.6;

// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)

library SafeMathPolydex {
    function add(uint x, uint y) internal pure returns (uint z) {
        require((z = x + y) >= x, 'ds-math-add-overflow');
    }

    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x, 'ds-math-sub-underflow');
    }

    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"contract IPolydexRouter","name":"_oldRouter","type":"address"},{"internalType":"contract IPolydexRouter","name":"_router","type":"address"},{"internalType":"address","name":"_WETH","type":"address"},{"internalType":"address","name":"_dfynWeth","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dfynWeth","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"migrate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"address","name":"_Farm","type":"address"},{"internalType":"uint256","name":"pid","type":"uint256"}],"name":"migrateWithDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"migrateWithPermit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"oldRouter","outputs":[{"internalType":"contract IPolydexRouter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"router","outputs":[{"internalType":"contract IPolydexRouter","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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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)

000000000000000000000000a102072a4c07f06ec3b4900fdc4c7b80b6c57429000000000000000000000000bd13225f0a45bead8510267b4d6a7c78146be4590000000000000000000000000d500b1d8e8ef31e21c99d1db9a6444d3adf12700000000000000000000000004c28f48448720e9000907bc2611f73022fdce1fa

-----Decoded View---------------
Arg [0] : _oldRouter (address): 0xA102072A4C07F06EC3B4900FDC4C7B80b6c57429
Arg [1] : _router (address): 0xBd13225f0a45BEad8510267B4D6a7c78146Be459
Arg [2] : _WETH (address): 0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270
Arg [3] : _dfynWeth (address): 0x4c28f48448720e9000907BC2611F73022fdcE1fA

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000a102072a4c07f06ec3b4900fdc4c7b80b6c57429
Arg [1] : 000000000000000000000000bd13225f0a45bead8510267b4d6a7c78146be459
Arg [2] : 0000000000000000000000000d500b1d8e8ef31e21c99d1db9a6444d3adf1270
Arg [3] : 0000000000000000000000004c28f48448720e9000907bc2611f73022fdce1fa


Block Transaction Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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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.