1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;
import '../libraries/SwapLibrary.sol';
import '../libraries/SafeMath.sol';
import '../libraries/TransferHelper.sol';
import '../interfaces/ISwapRouter.sol';
import '../interfaces/ISwapFactory.sol';
import '../interfaces/IERC20.sol';
import '../interfaces/IWETH.sol';
contract SwapRouter is ISwapRouter {
    using SafeMath for uint;
    address public immutable override factory;
    address public immutable override WETH;
    modifier ensure(uint deadline) {
        require(deadline >= block.timestamp, 'convergenceX swapRouter: EXPIRED');
        _;
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;
import './SwapERC20.sol';
import '../libraries/Math.sol';
import '../libraries/UQ112x112.sol';
import '../interfaces/IERC20.sol';
import '../interfaces/ISwapFactory.sol';
import '../interfaces/ISwapCallee.sol';
interface IMigrator {
    // Return the desired amount of liquidity token that the migrator wants.
    function desiredLiquidity() external view returns (uint256);
}
contract SwapPair is SwapERC20 {
    using SafeMath  for uint;
    using UQ112x112 for uint224;
    uint public constant MINIMUM_LIQUIDITY = 10**3;
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
// SPDX-License-Identifier: MIT
// File @openzeppelin/contracts/utils/Context.sol@v3.4.1
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-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
// Copyright (C) 2015, 2016, 2017 Dapphub
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
pragma solidity ^0.4.18;
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX