Contract 0x11111112542d85b3ef69ae05771c2dccff4faa26 16

1inch 
 

Contract Overview

1inch: V3
Balance:
52.310495384930903896 MATIC

MATIC Value:
$48.20 (@ $0.92/MATIC)

Token:
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xad046ef9622e72ed9bdfe43b5ce6c866db2bf8574f7ed14246c9f3f5552c7ae2Swap366080722022-12-09 6:41:288 mins ago0x77367333f676484f60befc240ad4393d1266011b IN  1inch: V30 MATIC0.004222962113 30.971485978
0xe7181b002616aacb5a090d51313cf23ddd0a82a18998ab407c7d4c5c95586e21Swap366080112022-12-09 6:39:2211 mins ago0xc892f1b2bf2d3e4fe06c7c6aa5d38a9dd7df620a IN  1inch: V30 MATIC0.004685438059 30.897004621
0x57580eb558876af058472fb41ec663068c1a5fa2fd3c95a642f286bb1851b1c1Swap366079232022-12-09 6:36:1614 mins ago0xa2bc06d48c748fa13ca8e2fbb913851a5ceb0d02 IN  1inch: V3336.132025848863519 MATIC0.01286094081 30.882465064
0xda972238b244afaaa3e3b5e9d1f297712b4a84e6ad2b48095d88f2b05ddf4006Swap366076222022-12-09 6:25:5824 mins ago0x1749a9cf3bc87ad5e665f00ee72424cd2434b51f IN  1inch: V30 MATIC0.004781215974 31.528589251
0x97faf2a1354beb6d104b4af87de91e1cc691ede389e9f186c2476f6d5839af6fSwap366075812022-12-09 6:24:3225 mins ago0x3f32fdefb8ca3802f4f9162a4141a17746688cb1 IN  1inch: V334 MATIC0.005180272298 31.530310103
0xf819b949a3f78c42bf5f3c851773fa309aab3351e123454bdc04800bd51b5ba1Swap366075052022-12-09 6:21:5628 mins ago0x478020fd34e207486c62400c777fec66cdd6879c IN  1inch: V351 MATIC0.006359469333 31.824715921
0xa6730a06477958d18b4fa3ada7a78da8ba2464018517e2b4c047c9aad5653d0aSwap366074642022-12-09 6:20:3029 mins ago0x372330ce9778e00eac6d9daac048e0cef613e064 IN  1inch: V30 MATIC0.00526262563235.58087997
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0x8579c7a3dce36cd9ffe6a106589d49f80ac1462c0ad04c8b20b932c7fcfa0ff8Swap366070412022-12-09 6:06:0044 mins ago0xc175ba2a98a180343a220e1e92e794ab2dc9b815 IN  1inch: V30 MATIC0.00443127621 33.041115843
0x146ed957a0640099dec6e99ae33dd8d139d13096625c2f861c14b8e9ea0385f1Swap366069282022-12-09 6:02:0648 mins ago0x39722fe4aaadf71b20b0db695ba5f28e9567fd0b IN  1inch: V30 MATIC0.004474640916 32.910483042
0x3829faf53a0a335f3bfdd10fcff95e7b7a282524b0727ea89e6e3beb1f2d6d8eSwap366068662022-12-09 5:59:5850 mins ago0x3ac4f78916ee48ed9253ac2b8a097e991f22a8c1 IN  1inch: V30 MATIC0.004370478847 33.320719459
0x091d2a95225501888a117153d82433f896ae4d6e15c443cf0d0698b1354ab68cSwap366068362022-12-09 5:58:5451 mins ago0x3ac4f78916ee48ed9253ac2b8a097e991f22a8c1 IN  1inch: V30 MATIC0.004718972509 34.707514561
0x687b284a70dc376890007c47e39a818ac411264ea231183520cde29fb636e77aSwap366064982022-12-09 5:45:101 hr 5 mins ago0x1473e7674e95f22e38bc4834075e6818dacd1e6b IN  1inch: V3400 MATIC0.01030044834 30.93255597
0xe5f481bdf8ceaade0f392de69af5fb211478b54abb85feb6a64f4dc57412bd81Swap366064372022-12-09 5:43:041 hr 7 mins ago0x7a03c309ae80b7cd67bdf882fa010280e19c2c08 IN  1inch: V30 MATIC0.004636242699 31.571926558
0x2f22cdb352e3de0655d9bf4d4a0105bc866c83f627c99f4f68b75908678410e8Swap366063512022-12-09 5:40:081 hr 10 mins ago0x1473e7674e95f22e38bc4834075e6818dacd1e6b IN  1inch: V30 MATIC0.011313118121 31.274861282
0x9c148f40d4adf222aeb2f38819d6f6dcb5f4221ae4cb0463266da4420a39a1acSwap366062552022-12-09 5:36:481 hr 13 mins ago0xca2bee5f31491829e87abc8ab711879b7cdc44c3 IN  1inch: V30 MATIC0.00467270581 31.820233375
0x6eb9f500cc82d619a61a420368a285791de067f1e59792b3ff1ed8841760c2faSwap366062292022-12-09 5:35:561 hr 14 mins ago0x1473e7674e95f22e38bc4834075e6818dacd1e6b IN  1inch: V3400 MATIC0.010507023336 32.446409151
0xad807b88b4f0273cc5b37f4419daeaf47e82872419dfde00298ed1913e62d1b5Swap366060312022-12-09 5:29:081 hr 21 mins ago0x9420c77a07a7da3d87b8f9c2450f58db8575dfd0 IN  1inch: V343 MATIC0.0044710924 30.441480175
0x5a2d965cfc758a34497e15d439be6455a20bd273b620db30b3318447ffbd34e3Swap366059162022-12-09 5:25:101 hr 25 mins ago0xfb2c6ac1154c375cabdc3f98972ad76919324ac7 IN  1inch: V30 MATIC0.036887079774 30.588305349
0x8c362acbd5a8c5e99abc81edfcc54160fec022ead0b67583425fb02fcedba378Swap366057872022-12-09 5:20:441 hr 29 mins ago0xfb2c6ac1154c375cabdc3f98972ad76919324ac7 IN  1inch: V373,229.197094120610642 MATIC0.011468755574 31.009124146
0xa6be973a13465aac3920bb59048b936b825f19e91dc78968678e5fd86424a786Swap366056142022-12-09 5:14:461 hr 35 mins ago0xbba290e680aee98fa6955c764f582ce47e4d372c IN  1inch: V345.6 MATIC0.00856078395 32.182309434
0xf8a27a54fa55fc9d526609650d79de5c67e08e9a136d83e0299906da171d3649Swap366054332022-12-09 5:08:051 hr 42 mins ago0x9af8e8f0ab58e41d850bc87535721aaa0115de40 IN  1inch: V342.6 MATIC0.006003467054 30.038362127
0xaa7b652527fa07194f63664ce18eb719e9794b4aa167ed21db36d67e95a05162Swap366048442022-12-09 4:47:132 hrs 3 mins ago0x9af8e8f0ab58e41d850bc87535721aaa0115de40 IN  1inch: V354 MATIC0.007182989322 30.353566213
0x397db13f4b135e89cd373c3549cf6920198ca6de63a0d4a6e2c7dd5252746377Swap366046432022-12-09 4:38:492 hrs 11 mins ago0x098614c0f34e0cb2b19812ef0129839044889991 IN  1inch: V30 MATIC0.016314441512 30.179234557
0x0ffcf624a452387de3a31a3fd68f72531314a96e190fedc2938b21b6055266c0Swap366045462022-12-09 4:35:312 hrs 14 mins ago0xe29062ce069fd7e56c42978c0c9a996b206d7d59 IN  1inch: V30 MATIC0.008721693964 30.363680549
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Latest 25 internal transaction
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0xf819b949a3f78c42bf5f3c851773fa309aab3351e123454bdc04800bd51b5ba1366075052022-12-09 6:21:5628 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf51 MATIC
0x687b284a70dc376890007c47e39a818ac411264ea231183520cde29fb636e77a366064982022-12-09 5:45:101 hr 5 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf400 MATIC
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0xad807b88b4f0273cc5b37f4419daeaf47e82872419dfde00298ed1913e62d1b5366060312022-12-09 5:29:081 hr 21 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf43 MATIC
0x8c362acbd5a8c5e99abc81edfcc54160fec022ead0b67583425fb02fcedba378366057872022-12-09 5:20:441 hr 29 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf73,229.197094120610642238 MATIC
0xa6be973a13465aac3920bb59048b936b825f19e91dc78968678e5fd86424a786366056142022-12-09 5:14:461 hr 35 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf45.6 MATIC
0xf8a27a54fa55fc9d526609650d79de5c67e08e9a136d83e0299906da171d3649366054332022-12-09 5:08:051 hr 42 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf42.6 MATIC
0xaa7b652527fa07194f63664ce18eb719e9794b4aa167ed21db36d67e95a05162366048442022-12-09 4:47:132 hrs 3 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf54 MATIC
0x0d61c6e0d5fbbbe06de0d99bba4a3ce5d196dffa8e083a700127f9bfc823dd82366032082022-12-09 3:49:283 hrs ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf107 MATIC
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0x99455da6f409195cf6c817e1266fbacc73f07ee146131d8286ad352fbd8aac08366027222022-12-09 3:30:363 hrs 19 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf0.879570925035599445 MATIC
0xd1cec1eccadbd68f454eb605913fcc7cfab7d1cac720d99c413815c59135501f366026722022-12-09 3:28:523 hrs 21 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf5.289411910987249428 MATIC
0xf6fe0750c5a060623ba6f51ff4430055763af9379fe5dda207c8f5dfda6677cc366026332022-12-09 3:27:343 hrs 22 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf21.171490718569161072 MATIC
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0x1ba46ffb6600ac1da36af22c410cca6bdbb9d9f39960f64641cf6a56543106e2365996132022-12-09 1:41:285 hrs 8 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf600 MATIC
0x94fbebc778417a58add614b20e2966adc08f8b47ba014d4e142e2312a036daf1365979812022-12-09 0:41:086 hrs 9 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf3.23258076718492361 MATIC
0x91fc9d6397b3f33e38fe3b1e318a9088c446580c25309b169914225d5c0b1a81365978732022-12-09 0:37:246 hrs 13 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf21.582986320675574771 MATIC
0x0d8c22504fcbcc0a35307cf5815df14524af0887631c567ade3d5acd262d36e1365975772022-12-09 0:27:166 hrs 23 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf21.692740692986319245 MATIC
0x760b6297d4af3fa784a663bc86b98a6376fb9a6746822a9d2cb0fd68fd13e504365962402022-12-08 23:38:497 hrs 11 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf15 MATIC
0x94f8c51e064d2794356ccbc0ddeca22ca8be7c4c68e5580195af1fabdef679af365959132022-12-08 23:27:357 hrs 22 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf10.772145502623015091 MATIC
0x7337c06bad74765a5ef1761ce4b7cb4dbcd213f60b4446029a90f3df73445c36365951372022-12-08 22:58:477 hrs 51 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf39.093746468612146946 MATIC
0x56469656650af53dd1c46f0a8b44e4b9a5213ba054419a4ad476235e0933aacc365944212022-12-08 22:34:078 hrs 16 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf250 MATIC
0x3b9eca03d7b3ab93db6df4f2c9b3ba23d1272b5f86aa695adc18db966de7b38c365939382022-12-08 22:17:338 hrs 32 mins ago 1inch: V3 0x0d15038f8a0362b4ce71d6c879d56bf9fc2884cf105 MATIC
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Contract Source Code Verified (Exact Match)

Contract Name:
AggregationRouterV3

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 1000000 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at polygonscan.com on 2021-06-10
*/

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transa ctions 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 payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}


// File @openzeppelin/contracts/access/[email protected]


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}


// File @openzeppelin/contracts/token/ERC20/[email protected]


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 @openzeppelin/contracts/math/[email protected]


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 @openzeppelin/contracts/utils/[email protected]


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 @openzeppelin/contracts/token/ERC20/[email protected]


pragma solidity >=0.6.0 <0.8.0;



/**
 * @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 contracts/helpers/UniERC20.sol


pragma solidity ^0.6.12;


library UniERC20 {
    using SafeMath for uint256;

    IERC20 private constant _ETH_ADDRESS = IERC20(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);
    IERC20 private constant _ZERO_ADDRESS = IERC20(0);

    function isETH(IERC20 token) internal pure returns (bool) {
        return (token == _ZERO_ADDRESS || token == _ETH_ADDRESS);
    }

    function uniBalanceOf(IERC20 token, address account) internal view returns (uint256) {
        if (isETH(token)) {
            return account.balance;
        } else {
            return token.balanceOf(account);
        }
    }

    function uniTransfer(IERC20 token, address payable to, uint256 amount) internal {
        if (amount > 0) {
            if (isETH(token)) {
                to.transfer(amount);
            } else {
                _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, amount));
            }
        }
    }

    function uniApprove(IERC20 token, address to, uint256 amount) internal {
        require(!isETH(token), "Approve called on ETH");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = address(token).call(abi.encodeWithSelector(token.approve.selector, to, amount));

        if (!success || (returndata.length > 0 && !abi.decode(returndata, (bool)))) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, to, 0));
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, to, amount));
        }
    }

    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "low-level call failed");

        if (returndata.length > 0) { // Return data is optional
            require(abi.decode(returndata, (bool)), "ERC20 operation did not succeed");
        }
    }
}


// File contracts/interfaces/IChi.sol


pragma solidity ^0.6.12;

interface IChi is IERC20 {
    function mint(uint256 value) external;
    function free(uint256 value) external returns (uint256 freed);
    function freeFromUpTo(address from, uint256 value) external returns (uint256 freed);
}


// File contracts/interfaces/IGasDiscountExtension.sol


pragma solidity ^0.6.12;

interface IGasDiscountExtension {
    function calculateGas(uint256 gasUsed, uint256 flags, uint256 calldataLength) external view returns (IChi, uint256);
}


// File contracts/interfaces/IAggregationExecutor.sol


pragma solidity ^0.6.12;

interface IAggregationExecutor is IGasDiscountExtension {
    function callBytes(bytes calldata data) external payable;  // 0xd9c45357
}


// File contracts/helpers/RevertReasonParser.sol


pragma solidity ^0.6.12;


library RevertReasonParser {
    function parse(bytes memory data, string memory prefix) internal pure returns (string memory) {
        // https://solidity.readthedocs.io/en/latest/control-structures.html#revert
        // We assume that revert reason is abi-encoded as Error(string)

        // 68 = 4-byte selector 0x08c379a0 + 32 bytes offset + 32 bytes length
        if (data.length >= 68 && data[0] == "\x08" && data[1] == "\xc3" && data[2] == "\x79" && data[3] == "\xa0") {
            string memory reason;
            // solhint-disable no-inline-assembly
            assembly {
                // 68 = 32 bytes data length + 4-byte selector + 32 bytes offset
                reason := add(data, 68)
            }
            /*
                revert reason is padded up to 32 bytes with ABI encoder: Error(string)
                also sometimes there is extra 32 bytes of zeros padded in the end:
                https://github.com/ethereum/solidity/issues/10170
                because of that we can't check for equality and instead check
                that string length + extra 68 bytes is less than overall data length
            */
            require(data.length >= 68 + bytes(reason).length, "Invalid revert reason");
            return string(abi.encodePacked(prefix, "Error(", reason, ")"));
        }
        // 36 = 4-byte selector 0x4e487b71 + 32 bytes integer
        else if (data.length == 36 && data[0] == "\x4e" && data[1] == "\x48" && data[2] == "\x7b" && data[3] == "\x71") {
            uint256 code;
            // solhint-disable no-inline-assembly
            assembly {
                // 36 = 32 bytes data length + 4-byte selector
                code := mload(add(data, 36))
            }
            return string(abi.encodePacked(prefix, "Panic(", _toHex(code), ")"));
        }

        return string(abi.encodePacked(prefix, "Unknown(", _toHex(data), ")"));
    }

    function _toHex(uint256 value) private pure returns(string memory) {
        return _toHex(abi.encodePacked(value));
    }

    function _toHex(bytes memory data) private pure returns(string memory) {
        bytes16 alphabet = 0x30313233343536373839616263646566;
        bytes memory str = new bytes(2 + data.length * 2);
        str[0] = "0";
        str[1] = "x";
        for (uint256 i = 0; i < data.length; i++) {
            str[2 * i + 2] = alphabet[uint8(data[i] >> 4)];
            str[2 * i + 3] = alphabet[uint8(data[i] & 0x0f)];
        }
        return string(str);
    }
}


// File contracts/interfaces/IERC20Permit.sol


pragma solidity ^0.6.12;


interface IERC20Permit {
    function permit(address owner, address spender, uint256 amount, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;
}


// File contracts/helpers/Permitable.sol


pragma solidity ^0.6.12;



contract Permitable {
    event Error(
        string reason
    );

    function _permit(IERC20 token, uint256 amount, bytes calldata permit) internal {
        if (permit.length == 32 * 7) {
            // solhint-disable-next-line avoid-low-level-calls
            (bool success, bytes memory result) = address(token).call(abi.encodePacked(IERC20Permit.permit.selector, permit));
            if (!success) {
                string memory reason = RevertReasonParser.parse(result, "Permit call failed: ");
                if (token.allowance(msg.sender, address(this)) < amount) {
                    revert(reason);
                } else {
                    emit Error(reason);
                }
            }
        }
    }
}


// File contracts/UnoswapRouter.sol


pragma solidity ^0.6.12;

contract UnoswapRouter is Permitable {
    uint256 private constant _TRANSFER_FROM_CALL_SELECTOR_32 = 0x23b872dd00000000000000000000000000000000000000000000000000000000;
    uint256 private constant _WETH_DEPOSIT_CALL_SELECTOR_32 = 0xd0e30db000000000000000000000000000000000000000000000000000000000;
    uint256 private constant _WETH_WITHDRAW_CALL_SELECTOR_32 = 0x2e1a7d4d00000000000000000000000000000000000000000000000000000000;
    uint256 private constant _ERC20_TRANSFER_CALL_SELECTOR_32 = 0xa9059cbb00000000000000000000000000000000000000000000000000000000;
    uint256 private constant _ADDRESS_MASK =   0x000000000000000000000000ffffffffffffffffffffffffffffffffffffffff;
    uint256 private constant _REVERSE_MASK =   0x8000000000000000000000000000000000000000000000000000000000000000;
    uint256 private constant _WETH_MASK =      0x4000000000000000000000000000000000000000000000000000000000000000;
    uint256 private constant _NUMERATOR_MASK = 0x0000000000000000ffffffff0000000000000000000000000000000000000000;
    uint256 private constant _WETH = 0x0000000000000000000000000d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270;
    uint256 private constant _UNISWAP_PAIR_RESERVES_CALL_SELECTOR_32 = 0x0902f1ac00000000000000000000000000000000000000000000000000000000;
    uint256 private constant _UNISWAP_PAIR_SWAP_CALL_SELECTOR_32 = 0x022c0d9f00000000000000000000000000000000000000000000000000000000;
    uint256 private constant _DENOMINATOR = 1000000000;
    uint256 private constant _NUMERATOR_OFFSET = 160;

    receive() external payable {
        // solhint-disable-next-line avoid-tx-origin
        require(msg.sender != tx.origin, "ETH deposit rejected");
    }

    function unoswapWithPermit(
        IERC20 srcToken,
        uint256 amount,
        uint256 minReturn,
        bytes32[] calldata pools,
        bytes calldata permit
    ) external payable returns(uint256 returnAmount) {
        _permit(srcToken, amount, permit);
        return unoswap(srcToken, amount, minReturn, pools);
    }

    function unoswap(
        IERC20 srcToken,
        uint256 amount,
        uint256 minReturn,
        bytes32[] calldata /* pools */
    ) public payable returns(uint256 returnAmount) {
        assembly {  // solhint-disable-line no-inline-assembly
            function reRevert() {
                returndatacopy(0, 0, returndatasize())
                revert(0, returndatasize())
            }

            function revertWithReason(m, len) {
                mstore(0, 0x08c379a000000000000000000000000000000000000000000000000000000000)
                mstore(0x20, 0x0000002000000000000000000000000000000000000000000000000000000000)
                mstore(0x40, m)
                revert(0, len)
            }

            function swap(emptyPtr, swapAmount, pair, reversed, numerator, dst) -> ret {
                mstore(emptyPtr, _UNISWAP_PAIR_RESERVES_CALL_SELECTOR_32)
                if iszero(staticcall(gas(), pair, emptyPtr, 0x4, emptyPtr, 0x40)) {
                    reRevert()
                }

                let reserve0 := mload(emptyPtr)
                let reserve1 := mload(add(emptyPtr, 0x20))
                if reversed {
                    let tmp := reserve0
                    reserve0 := reserve1
                    reserve1 := tmp
                }
                ret := mul(swapAmount, numerator)
                ret := div(mul(ret, reserve1), add(ret, mul(reserve0, _DENOMINATOR)))

                mstore(emptyPtr, _UNISWAP_PAIR_SWAP_CALL_SELECTOR_32)
                switch reversed
                case 0 {
                    mstore(add(emptyPtr, 0x04), 0)
                    mstore(add(emptyPtr, 0x24), ret)
                }
                default {
                    mstore(add(emptyPtr, 0x04), ret)
                    mstore(add(emptyPtr, 0x24), 0)
                }
                mstore(add(emptyPtr, 0x44), dst)
                mstore(add(emptyPtr, 0x64), 0x80)
                mstore(add(emptyPtr, 0x84), 0)
                if iszero(call(gas(), pair, 0, emptyPtr, 0xa4, 0, 0)) {
                    reRevert()
                }
            }

            let emptyPtr := mload(0x40)
            mstore(0x40, add(emptyPtr, 0xc0))

            let poolsOffset := add(calldataload(0x64), 0x4)
            let poolsEndOffset := calldataload(poolsOffset)
            poolsOffset := add(poolsOffset, 0x20)
            poolsEndOffset := add(poolsOffset, mul(0x20, poolsEndOffset))
            let rawPair := calldataload(poolsOffset)
            switch srcToken
            case 0 {
                if iszero(eq(amount, callvalue())) {
                    revertWithReason(0x00000011696e76616c6964206d73672e76616c75650000000000000000000000, 0x55)  // "invalid msg.value"
                }

                mstore(emptyPtr, _WETH_DEPOSIT_CALL_SELECTOR_32)
                if iszero(call(gas(), _WETH, amount, emptyPtr, 0x4, 0, 0)) {
                    reRevert()
                }

                mstore(emptyPtr, _ERC20_TRANSFER_CALL_SELECTOR_32)
                mstore(add(emptyPtr, 0x4), and(rawPair, _ADDRESS_MASK))
                mstore(add(emptyPtr, 0x24), amount)
                if iszero(call(gas(), _WETH, 0, emptyPtr, 0x44, 0, 0)) {
                    reRevert()
                }
            }
            default {
                if callvalue() {
                    revertWithReason(0x00000011696e76616c6964206d73672e76616c75650000000000000000000000, 0x55)  // "invalid msg.value"
                }

                mstore(emptyPtr, _TRANSFER_FROM_CALL_SELECTOR_32)
                mstore(add(emptyPtr, 0x4), caller())
                mstore(add(emptyPtr, 0x24), and(rawPair, _ADDRESS_MASK))
                mstore(add(emptyPtr, 0x44), amount)
                if iszero(call(gas(), srcToken, 0, emptyPtr, 0x64, 0, 0)) {
                    reRevert()
                }
            }

            returnAmount := amount

            for {let i := add(poolsOffset, 0x20)} lt(i, poolsEndOffset) {i := add(i, 0x20)} {
                let nextRawPair := calldataload(i)

                returnAmount := swap(
                    emptyPtr,
                    returnAmount,
                    and(rawPair, _ADDRESS_MASK),
                    and(rawPair, _REVERSE_MASK),
                    shr(_NUMERATOR_OFFSET, and(rawPair, _NUMERATOR_MASK)),
                    and(nextRawPair, _ADDRESS_MASK)
                )

                rawPair := nextRawPair
            }

            switch and(rawPair, _WETH_MASK)
            case 0 {
                returnAmount := swap(
                    emptyPtr,
                    returnAmount,
                    and(rawPair, _ADDRESS_MASK),
                    and(rawPair, _REVERSE_MASK),
                    shr(_NUMERATOR_OFFSET, and(rawPair, _NUMERATOR_MASK)),
                    caller()
                )
            }
            default {
                returnAmount := swap(
                    emptyPtr,
                    returnAmount,
                    and(rawPair, _ADDRESS_MASK),
                    and(rawPair, _REVERSE_MASK),
                    shr(_NUMERATOR_OFFSET, and(rawPair, _NUMERATOR_MASK)),
                    address()
                )

                mstore(emptyPtr, _WETH_WITHDRAW_CALL_SELECTOR_32)
                mstore(add(emptyPtr, 0x04), returnAmount)
                if iszero(call(gas(), _WETH, 0, emptyPtr, 0x24, 0, 0)) {
                    reRevert()
                }

                if iszero(call(gas(), caller(), returnAmount, 0, 0, 0, 0)) {
                    reRevert()
                }
            }

            if lt(returnAmount, minReturn) {
                revertWithReason(0x000000164d696e2072657475726e206e6f742072656163686564000000000000, 0x5a)  // "Min return not reached"
            }
        }
    }
}


// File contracts/AggregationRouterV3.sol


pragma solidity ^0.6.12;
pragma experimental ABIEncoderV2;






contract AggregationRouterV3 is Ownable, UnoswapRouter {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;
    using UniERC20 for IERC20;

    uint256 private constant _PARTIAL_FILL = 0x01;
    uint256 private constant _REQUIRES_EXTRA_ETH = 0x02;
    uint256 private constant _SHOULD_CLAIM = 0x04;
    uint256 private constant _BURN_FROM_MSG_SENDER = 0x08;
    uint256 private constant _BURN_FROM_TX_ORIGIN = 0x10;

    struct SwapDescription {
        IERC20 srcToken;
        IERC20 dstToken;
        address srcReceiver;
        address dstReceiver;
        uint256 amount;
        uint256 minReturnAmount;
        uint256 flags;
        bytes permit;
    }

    event Swapped(
        address sender,
        IERC20 srcToken,
        IERC20 dstToken,
        address dstReceiver,
        uint256 spentAmount,
        uint256 returnAmount
    );

    function discountedSwap(
        IAggregationExecutor caller,
        SwapDescription calldata desc,
        bytes calldata data
    )
        external
        payable
        returns (uint256 returnAmount, uint256 gasLeft, uint256 chiSpent)
    {
        uint256 initialGas = gasleft();

        address chiSource = address(0);
        if (desc.flags & _BURN_FROM_MSG_SENDER != 0) {
            chiSource = msg.sender;
        } else if (desc.flags & _BURN_FROM_TX_ORIGIN != 0) {
            chiSource = tx.origin; // solhint-disable-line avoid-tx-origin
        } else {
            revert("Incorrect CHI burn flags");
        }

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returnData) = address(this).delegatecall(abi.encodeWithSelector(this.swap.selector, caller, desc, data));
        if (success) {
            (returnAmount,) = abi.decode(returnData, (uint256, uint256));
        } else {
            if (msg.value > 0) {
                msg.sender.transfer(msg.value);
            }
            emit Error(RevertReasonParser.parse(returnData, "Swap failed: "));
        }

        (IChi chi, uint256 amount) = caller.calculateGas(initialGas.sub(gasleft()), desc.flags, msg.data.length);
        if (amount > 0) {
            chiSpent = chi.freeFromUpTo(chiSource, amount);
        }
        gasLeft = gasleft();
    }

    function swap(
        IAggregationExecutor caller,
        SwapDescription calldata desc,
        bytes calldata data
    )
        external
        payable
        returns (uint256 returnAmount, uint256 gasLeft)
    {
        require(desc.minReturnAmount > 0, "Min return should not be 0");
        require(data.length > 0, "data should be not zero");

        uint256 flags = desc.flags;
        IERC20 srcToken = desc.srcToken;
        IERC20 dstToken = desc.dstToken;

        if (flags & _REQUIRES_EXTRA_ETH != 0) {
            require(msg.value > (srcToken.isETH() ? desc.amount : 0), "Invalid msg.value");
        } else {
            require(msg.value == (srcToken.isETH() ? desc.amount : 0), "Invalid msg.value");
        }

        if (flags & _SHOULD_CLAIM != 0) {
            require(!srcToken.isETH(), "Claim token is ETH");
            _permit(srcToken, desc.amount, desc.permit);
            srcToken.safeTransferFrom(msg.sender, desc.srcReceiver, desc.amount);
        }

        address dstReceiver = (desc.dstReceiver == address(0)) ? msg.sender : desc.dstReceiver;
        uint256 initialSrcBalance = (flags & _PARTIAL_FILL != 0) ? srcToken.uniBalanceOf(msg.sender) : 0;
        uint256 initialDstBalance = dstToken.uniBalanceOf(dstReceiver);

        {
            // solhint-disable-next-line avoid-low-level-calls
            (bool success, bytes memory result) = address(caller).call{value: msg.value}(abi.encodePacked(caller.callBytes.selector, data));
            if (!success) {
                revert(RevertReasonParser.parse(result, "callBytes failed: "));
            }
        }

        uint256 spentAmount = desc.amount;
        returnAmount = dstToken.uniBalanceOf(dstReceiver).sub(initialDstBalance);

        if (flags & _PARTIAL_FILL != 0) {
            spentAmount = initialSrcBalance.add(desc.amount).sub(srcToken.uniBalanceOf(msg.sender));
            require(returnAmount.mul(desc.amount) >= desc.minReturnAmount.mul(spentAmount), "Return amount is not enough");
        } else {
            require(returnAmount >= desc.minReturnAmount, "Return amount is not enough");
        }

        emit Swapped(
            msg.sender,
            srcToken,
            dstToken,
            dstReceiver,
            spentAmount,
            returnAmount
        );

        gasLeft = gasleft();
    }

    function rescueFunds(IERC20 token, uint256 amount) external onlyOwner {
        token.uniTransfer(msg.sender, amount);
    }

    function destroy() external onlyOwner {
        selfdestruct(msg.sender);
    }
}

Contract Security Audit

Contract ABI

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"reason","type":"string"}],"name":"Error","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"contract IERC20","name":"srcToken","type":"address"},{"indexed":false,"internalType":"contract IERC20","name":"dstToken","type":"address"},{"indexed":false,"internalType":"address","name":"dstReceiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"spentAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"returnAmount","type":"uint256"}],"name":"Swapped","type":"event"},{"inputs":[],"name":"destroy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IAggregationExecutor","name":"caller","type":"address"},{"components":[{"internalType":"contract IERC20","name":"srcToken","type":"address"},{"internalType":"contract IERC20","name":"dstToken","type":"address"},{"internalType":"address","name":"srcReceiver","type":"address"},{"internalType":"address","name":"dstReceiver","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"minReturnAmount","type":"uint256"},{"internalType":"uint256","name":"flags","type":"uint256"},{"internalType":"bytes","name":"permit","type":"bytes"}],"internalType":"struct AggregationRouterV3.SwapDescription","name":"desc","type":"tuple"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"discountedSwap","outputs":[{"internalType":"uint256","name":"returnAmount","type":"uint256"},{"internalType":"uint256","name":"gasLeft","type":"uint256"},{"internalType":"uint256","name":"chiSpent","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"rescueFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IAggregationExecutor","name":"caller","type":"address"},{"components":[{"internalType":"contract IERC20","name":"srcToken","type":"address"},{"internalType":"contract IERC20","name":"dstToken","type":"address"},{"internalType":"address","name":"srcReceiver","type":"address"},{"internalType":"address","name":"dstReceiver","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"minReturnAmount","type":"uint256"},{"internalType":"uint256","name":"flags","type":"uint256"},{"internalType":"bytes","name":"permit","type":"bytes"}],"internalType":"struct AggregationRouterV3.SwapDescription","name":"desc","type":"tuple"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[{"internalType":"uint256","name":"returnAmount","type":"uint256"},{"internalType":"uint256","name":"gasLeft","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"srcToken","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"minReturn","type":"uint256"},{"internalType":"bytes32[]","name":"","type":"bytes32[]"}],"name":"unoswap","outputs":[{"internalType":"uint256","name":"returnAmount","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"srcToken","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"minReturn","type":"uint256"},{"internalType":"bytes32[]","name":"pools","type":"bytes32[]"},{"internalType":"bytes","name":"permit","type":"bytes"}],"name":"unoswapWithPermit","outputs":[{"internalType":"uint256","name":"returnAmount","type":"uint256"}],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Swarm Source

ipfs://feeb741eab22366472b671c990b8d9f00980994ef47fc987ed6f27933c7a4f45
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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