Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- PancakeStableSwapFactory
- Optimization enabled
- true
- Compiler version
- v0.8.10+commit.fc410830
- Optimization runs
- 1000
- EVM Version
- default
- Verified at
- 2024-11-08T12:29:10.906031Z
Constructor Arguments
0x0000000000000000000000000fafe29bc793dc4828b151e655e6df0277721cbb000000000000000000000000e3dbdf64f1cd412506efacf066024787daaa2b56000000000000000000000000feffe0d393b7849a2fff0aba2d7d12565797eefd
Arg [0] (address) : 0x0fafe29bc793dc4828b151e655e6df0277721cbb
Arg [1] (address) : 0xe3dbdf64f1cd412506efacf066024787daaa2b56
Arg [2] (address) : 0xfeffe0d393b7849a2fff0aba2d7d12565797eefd
contracts/PancakeStableSwapFactory.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
pragma abicoder v2;
import "../interfaces/IPancakeStableSwap.sol";
import "../interfaces/IPancakeStableSwapLP.sol";
import "../interfaces/IPancakeStableSwapDeployer.sol";
import "../interfaces/IPancakeStableSwapLPFactory.sol";
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
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() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(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");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
contract PancakeStableSwapFactory is Ownable {
struct StableSwapPairInfo {
address swapContract;
address token0;
address token1;
address LPContract;
}
struct StableSwapThreePoolPairInfo {
address swapContract;
address token0;
address token1;
address token2;
address LPContract;
}
mapping(address => mapping(address => mapping(address => StableSwapThreePoolPairInfo))) public stableSwapPairInfo;
// Query three pool pair infomation by two tokens.
mapping(address => mapping(address => StableSwapThreePoolPairInfo)) threePoolInfo;
mapping(uint256 => address) public swapPairContract;
IPancakeStableSwapLPFactory public immutable LPFactory;
IPancakeStableSwapDeployer public immutable SwapTwoPoolDeployer;
IPancakeStableSwapDeployer public immutable SwapThreePoolDeployer;
address constant ZEROADDRESS = address(0);
uint256 public pairLength;
event NewStableSwapPair(address indexed swapContract, address tokenA, address tokenB, address tokenC, address LP);
/**
* @notice constructor
* _LPFactory: LP factory
* _SwapTwoPoolDeployer: Swap two pool deployer
* _SwapThreePoolDeployer: Swap three pool deployer
*/
constructor(
IPancakeStableSwapLPFactory _LPFactory,
IPancakeStableSwapDeployer _SwapTwoPoolDeployer,
IPancakeStableSwapDeployer _SwapThreePoolDeployer
) {
LPFactory = _LPFactory;
SwapTwoPoolDeployer = _SwapTwoPoolDeployer;
SwapThreePoolDeployer = _SwapThreePoolDeployer;
}
// 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, "IDENTICAL_ADDRESSES");
(token0, token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
}
function sortTokens(
address tokenA,
address tokenB,
address tokenC
)
internal
pure
returns (
address,
address,
address
)
{
require(tokenA != tokenB && tokenA != tokenC && tokenB != tokenC, "IDENTICAL_ADDRESSES");
address tmp;
if (tokenA > tokenB) {
tmp = tokenA;
tokenA = tokenB;
tokenB = tmp;
}
if (tokenB > tokenC) {
tmp = tokenB;
tokenB = tokenC;
tokenC = tmp;
if (tokenA > tokenB) {
tmp = tokenA;
tokenA = tokenB;
tokenB = tmp;
}
}
return (tokenA, tokenB, tokenC);
}
/**
* @notice createSwapPair
* @param _tokenA: Addresses of ERC20 conracts .
* @param _tokenB: Addresses of ERC20 conracts .
* @param _A: Amplification coefficient multiplied by n * (n - 1)
* @param _fee: Fee to charge for exchanges
* @param _admin_fee: Admin fee
*/
function createSwapPair(
address _tokenA,
address _tokenB,
uint256 _A,
uint256 _fee,
uint256 _admin_fee
) external onlyOwner {
require(_tokenA != ZEROADDRESS && _tokenB != ZEROADDRESS && _tokenA != _tokenB, "Illegal token");
(address t0, address t1) = sortTokens(_tokenA, _tokenB);
address LP = LPFactory.createSwapLP(t0, t1, ZEROADDRESS, address(this));
address swapContract = SwapTwoPoolDeployer.createSwapPair(t0, t1, _A, _fee, _admin_fee, msg.sender, LP);
IPancakeStableSwapLP(LP).setMinter(swapContract);
addPairInfoInternal(swapContract, t0, t1, ZEROADDRESS, LP);
}
/**
* @notice createThreePoolPair
* @param _tokenA: Addresses of ERC20 conracts .
* @param _tokenB: Addresses of ERC20 conracts .
* @param _tokenC: Addresses of ERC20 conracts .
* @param _A: Amplification coefficient multiplied by n * (n - 1)
* @param _fee: Fee to charge for exchanges
* @param _admin_fee: Admin fee
*/
function createThreePoolPair(
address _tokenA,
address _tokenB,
address _tokenC,
uint256 _A,
uint256 _fee,
uint256 _admin_fee
) external onlyOwner {
require(
_tokenA != ZEROADDRESS &&
_tokenB != ZEROADDRESS &&
_tokenC != ZEROADDRESS &&
_tokenA != _tokenB &&
_tokenA != _tokenC &&
_tokenB != _tokenC,
"Illegal token"
);
(address t0, address t1, address t2) = sortTokens(_tokenA, _tokenB, _tokenC);
address LP = LPFactory.createSwapLP(t0, t1, t2, address(this));
address swapContract = SwapThreePoolDeployer.createSwapPair(t0, t1, t2, _A, _fee, _admin_fee, msg.sender, LP);
IPancakeStableSwapLP(LP).setMinter(swapContract);
addPairInfoInternal(swapContract, t0, t1, t2, LP);
}
function addPairInfoInternal(
address _swapContract,
address _t0,
address _t1,
address _t2,
address _LP
) internal {
StableSwapThreePoolPairInfo storage info = stableSwapPairInfo[_t0][_t1][_t2];
info.swapContract = _swapContract;
info.token0 = _t0;
info.token1 = _t1;
info.token2 = _t2;
info.LPContract = _LP;
swapPairContract[pairLength] = _swapContract;
pairLength += 1;
if (_t2 != ZEROADDRESS) {
addThreePoolPairInfo(_t0, _t1, _t2, info);
}
emit NewStableSwapPair(_swapContract, _t0, _t1, _t2, _LP);
}
function addThreePoolPairInfo(
address _t0,
address _t1,
address _t2,
StableSwapThreePoolPairInfo memory info
) internal {
threePoolInfo[_t0][_t1] = info;
threePoolInfo[_t0][_t2] = info;
threePoolInfo[_t1][_t2] = info;
}
function addPairInfo(address _swapContract) external onlyOwner {
IPancakeStableSwap swap = IPancakeStableSwap(_swapContract);
uint256 N_COINS = swap.N_COINS();
if (N_COINS == 2) {
addPairInfoInternal(_swapContract, swap.coins(0), swap.coins(1), ZEROADDRESS, swap.token());
} else if (N_COINS == 3) {
addPairInfoInternal(_swapContract, swap.coins(0), swap.coins(1), swap.coins(2), swap.token());
}
}
function getPairInfo(address _tokenA, address _tokenB) external view returns (StableSwapPairInfo memory info) {
(address t0, address t1) = sortTokens(_tokenA, _tokenB);
StableSwapThreePoolPairInfo memory pairInfo = stableSwapPairInfo[t0][t1][ZEROADDRESS];
info.swapContract = pairInfo.swapContract;
info.token0 = pairInfo.token0;
info.token1 = pairInfo.token1;
info.LPContract = pairInfo.LPContract;
}
function getThreePoolPairInfo(address _tokenA, address _tokenB)
external
view
returns (StableSwapThreePoolPairInfo memory info)
{
(address t0, address t1) = sortTokens(_tokenA, _tokenB);
info = threePoolInfo[t0][t1];
}
}
interfaces/IPancakeStableSwap.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.7.5;
interface IPancakeStableSwap {
function token() external view returns (address);
function balances(uint256 i) external view returns (uint256);
function N_COINS() external view returns (uint256);
function RATES(uint256 i) external view returns (uint256);
function coins(uint256 i) external view returns (address);
function PRECISION_MUL(uint256 i) external view returns (uint256);
function fee() external view returns (uint256);
function admin_fee() external view returns (uint256);
function A() external view returns (uint256);
function get_D_mem(uint256[2] memory _balances, uint256 amp) external view returns (uint256);
function get_y(
uint256 i,
uint256 j,
uint256 x,
uint256[2] memory xp_
) external view returns (uint256);
function calc_withdraw_one_coin(uint256 _token_amount, uint256 i) external view returns (uint256);
}
interfaces/IPancakeStableSwapDeployer.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.7.5;
interface IPancakeStableSwapDeployer {
function createSwapPair(
address _tokenA,
address _tokenB,
uint256 _A,
uint256 _fee,
uint256 _admin_fee,
address _admin,
address _LP
) external returns (address);
function createSwapPair(
address _tokenA,
address _tokenB,
address _tokenC,
uint256 _A,
uint256 _fee,
uint256 _admin_fee,
address _admin,
address _LP
) external returns (address);
}
interfaces/IPancakeStableSwapLP.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.7.5;
interface IPancakeStableSwapLP {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
function mint(address _to, uint256 _amount) external;
function burnFrom(address _to, uint256 _amount) external;
function setMinter(address _newMinter) external;
}
interfaces/IPancakeStableSwapLPFactory.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.7.5;
interface IPancakeStableSwapLPFactory {
function createSwapLP(
address _tokenA,
address _tokenB,
address _tokenC,
address _minter
) external returns (address);
}
Compiler Settings
{"outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers","metadata"],"":["ast"]}},"optimizer":{"runs":1000,"enabled":true},"libraries":{}}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_LPFactory","internalType":"contract IPancakeStableSwapLPFactory"},{"type":"address","name":"_SwapTwoPoolDeployer","internalType":"contract IPancakeStableSwapDeployer"},{"type":"address","name":"_SwapThreePoolDeployer","internalType":"contract IPancakeStableSwapDeployer"}]},{"type":"event","name":"NewStableSwapPair","inputs":[{"type":"address","name":"swapContract","internalType":"address","indexed":true},{"type":"address","name":"tokenA","internalType":"address","indexed":false},{"type":"address","name":"tokenB","internalType":"address","indexed":false},{"type":"address","name":"tokenC","internalType":"address","indexed":false},{"type":"address","name":"LP","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IPancakeStableSwapLPFactory"}],"name":"LPFactory","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IPancakeStableSwapDeployer"}],"name":"SwapThreePoolDeployer","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IPancakeStableSwapDeployer"}],"name":"SwapTwoPoolDeployer","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"addPairInfo","inputs":[{"type":"address","name":"_swapContract","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"createSwapPair","inputs":[{"type":"address","name":"_tokenA","internalType":"address"},{"type":"address","name":"_tokenB","internalType":"address"},{"type":"uint256","name":"_A","internalType":"uint256"},{"type":"uint256","name":"_fee","internalType":"uint256"},{"type":"uint256","name":"_admin_fee","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"createThreePoolPair","inputs":[{"type":"address","name":"_tokenA","internalType":"address"},{"type":"address","name":"_tokenB","internalType":"address"},{"type":"address","name":"_tokenC","internalType":"address"},{"type":"uint256","name":"_A","internalType":"uint256"},{"type":"uint256","name":"_fee","internalType":"uint256"},{"type":"uint256","name":"_admin_fee","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple","name":"info","internalType":"struct PancakeStableSwapFactory.StableSwapPairInfo","components":[{"type":"address","name":"swapContract","internalType":"address"},{"type":"address","name":"token0","internalType":"address"},{"type":"address","name":"token1","internalType":"address"},{"type":"address","name":"LPContract","internalType":"address"}]}],"name":"getPairInfo","inputs":[{"type":"address","name":"_tokenA","internalType":"address"},{"type":"address","name":"_tokenB","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple","name":"info","internalType":"struct PancakeStableSwapFactory.StableSwapThreePoolPairInfo","components":[{"type":"address","name":"swapContract","internalType":"address"},{"type":"address","name":"token0","internalType":"address"},{"type":"address","name":"token1","internalType":"address"},{"type":"address","name":"token2","internalType":"address"},{"type":"address","name":"LPContract","internalType":"address"}]}],"name":"getThreePoolPairInfo","inputs":[{"type":"address","name":"_tokenA","internalType":"address"},{"type":"address","name":"_tokenB","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"pairLength","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"swapContract","internalType":"address"},{"type":"address","name":"token0","internalType":"address"},{"type":"address","name":"token1","internalType":"address"},{"type":"address","name":"token2","internalType":"address"},{"type":"address","name":"LPContract","internalType":"address"}],"name":"stableSwapPairInfo","inputs":[{"type":"address","name":"","internalType":"address"},{"type":"address","name":"","internalType":"address"},{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"swapPairContract","inputs":[{"type":"uint256","name":"","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]}]
Contract Creation Code
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