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ContractCreator:
Sponsored
Latest 25 from a total of 511 transactions
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Withdraw | 21731435 | 855 days ago | IN | 0 MATIC | 0.00434076 | ||||
Withdraw | 21199747 | 869 days ago | IN | 0 MATIC | 0.00248728 | ||||
Deposit | 21199738 | 869 days ago | IN | 0 MATIC | 0.00384136 | ||||
Withdraw | 21129768 | 870 days ago | IN | 0 MATIC | 0.00365772 | ||||
Withdraw | 21127445 | 870 days ago | IN | 0 MATIC | 0.00434076 | ||||
Withdraw | 21122912 | 871 days ago | IN | 0 MATIC | 0.00365724 | ||||
Withdraw | 21118979 | 871 days ago | IN | 0 MATIC | 0.00434124 | ||||
Withdraw | 21087370 | 871 days ago | IN | 0 MATIC | 0.00365724 | ||||
Withdraw | 21046505 | 873 days ago | IN | 0 MATIC | 0.00434124 | ||||
Withdraw | 21035881 | 873 days ago | IN | 0 MATIC | 0.00434124 | ||||
Withdraw | 21001404 | 874 days ago | IN | 0 MATIC | 0.00362666 | ||||
Withdraw | 20993728 | 874 days ago | IN | 0 MATIC | 0.00393153 | ||||
Withdraw | 20988771 | 874 days ago | IN | 0 MATIC | 0.00365676 | ||||
Withdraw | 20977279 | 874 days ago | IN | 0 MATIC | 0.00365724 | ||||
Withdraw | 20973616 | 874 days ago | IN | 0 MATIC | 0.00180328 | ||||
Deposit | 20973583 | 874 days ago | IN | 0 MATIC | 0.00384136 | ||||
Withdraw | 20972568 | 874 days ago | IN | 0 MATIC | 0.00297324 | ||||
Withdraw | 20970776 | 874 days ago | IN | 0 MATIC | 0.00238106 | ||||
Withdraw | 20953390 | 875 days ago | IN | 0 MATIC | 0.00434124 | ||||
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Withdraw | 20946696 | 875 days ago | IN | 0 MATIC | 0.00248584 | ||||
Deposit | 20946684 | 875 days ago | IN | 0 MATIC | 0.00384136 | ||||
Withdraw | 20946608 | 875 days ago | IN | 0 MATIC | 0.00180328 |
Latest 1 internal transaction
Parent Txn Hash | Block | From | To | Value | ||
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19761003 | 907 days ago | Contract Creation | 0 MATIC |
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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0xCDDDfD37...8b9DDea74 The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
StakingPool
Compiler Version
v0.8.4+commit.c7e474f2
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /* Join us at PolyCrystal.Finance! █▀▀█ █▀▀█ █░░ █░░█ █▀▀ █▀▀█ █░░█ █▀▀ ▀▀█▀▀ █▀▀█ █░░ █░░█ █░░█ █░░ █▄▄█ █░░ █▄▄▀ █▄▄█ ▀▀█ ░░█░░ █▄▄█ █░░ █▀▀▀ ▀▀▀▀ ▀▀▀ ▄▄▄█ ▀▀▀ ▀░▀▀ ▄▄▄█ ▀▀▀ ░░▀░░ ▀░░▀ ▀▀▀ */ import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/proxy/utils/Initializable.sol"; contract StakingPool is Ownable, Initializable { using SafeERC20 for IERC20; // Info of each user. struct UserInfo { uint256 amount; // How many LP tokens the user has provided. uint256 rewardDebt; // Reward debt. See explanation below. } // Info of each pool. struct PoolInfo { IERC20 lpToken; // Address of LP token contract. uint256 allocPoint; // How many allocation points assigned to this pool. Rewards to distribute per block. uint256 lastRewardBlock; // Last block number that Rewards distribution occurs. uint256 accRewardTokenPerShare; // Accumulated Rewards per share, times 1e30. See below. } // The stake token IERC20 public STAKE_TOKEN; // The reward token IERC20 public REWARD_TOKEN; // Reward tokens created per block. uint256 public rewardPerBlock; // Keep track of number of tokens staked in case the contract earns reflect fees uint256 public totalStaked = 0; // Info of each pool. PoolInfo public poolInfo; // Info of each user that stakes LP tokens. mapping (address => UserInfo) public userInfo; // Total allocation poitns. Must be the sum of all allocation points in all pools. uint256 private totalAllocPoint = 0; // The block number when Reward mining starts. uint256 public startBlock; // The block number when mining ends. uint256 public bonusEndBlock; event Deposit(address indexed user, uint256 amount); event DepositRewards(uint256 amount); event Withdraw(address indexed user, uint256 amount); event EmergencyWithdraw(address indexed user, uint256 amount); event SkimStakeTokenFees(address indexed user, uint256 amount); event LogUpdatePool(uint256 bonusEndBlock, uint256 rewardPerBlock); event EmergencyRewardWithdraw(address indexed user, uint256 amount); event EmergencySweepWithdraw(address indexed user, IERC20 indexed token, uint256 amount); function initialize( IERC20 _stakeToken, IERC20 _rewardToken, uint256 _rewardPerBlock, uint256 _startBlock, uint256 _bonusEndBlock ) external initializer { STAKE_TOKEN = _stakeToken; REWARD_TOKEN = _rewardToken; rewardPerBlock = _rewardPerBlock; startBlock = _startBlock; bonusEndBlock = _bonusEndBlock; // staking pool poolInfo = PoolInfo({ lpToken: _stakeToken, allocPoint: 1000, lastRewardBlock: startBlock, accRewardTokenPerShare: 0 }); totalAllocPoint = 1000; } // Return reward multiplier over the given _from to _to block. function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256) { if (_to <= bonusEndBlock) { return _to - _from; } else if (_from >= bonusEndBlock) { return 0; } else { return bonusEndBlock - _from; } } /// @param _bonusEndBlock The block when rewards will end function setBonusEndBlock(uint256 _bonusEndBlock) external onlyOwner { require(_bonusEndBlock > bonusEndBlock, 'new bonus end block must be greater than current'); bonusEndBlock = _bonusEndBlock; emit LogUpdatePool(bonusEndBlock, rewardPerBlock); } // View function to see pending Reward on frontend. function pendingReward(address _user) external view returns (uint256) { UserInfo storage user = userInfo[_user]; uint256 accRewardTokenPerShare = poolInfo.accRewardTokenPerShare; if (block.number > poolInfo.lastRewardBlock && totalStaked != 0) { uint256 multiplier = getMultiplier(poolInfo.lastRewardBlock, block.number); uint256 tokenReward = multiplier * rewardPerBlock * poolInfo.allocPoint / totalAllocPoint; accRewardTokenPerShare = accRewardTokenPerShare + (tokenReward * 1e30 / totalStaked); } return user.amount * accRewardTokenPerShare / 1e30 - user.rewardDebt; } // Update reward variables of the given pool to be up-to-date. function updatePool() public { if (block.number <= poolInfo.lastRewardBlock) { return; } if (totalStaked == 0) { poolInfo.lastRewardBlock = block.number; return; } uint256 multiplier = getMultiplier(poolInfo.lastRewardBlock, block.number); uint256 tokenReward = multiplier * rewardPerBlock * poolInfo.allocPoint / totalAllocPoint; poolInfo.accRewardTokenPerShare = poolInfo.accRewardTokenPerShare + (tokenReward * 1e30 / totalStaked); poolInfo.lastRewardBlock = block.number; } /// Deposit staking token into the contract to earn rewards. /// @dev Since this contract needs to be supplied with rewards we are /// sending the balance of the contract if the pending rewards are higher /// @param _amount The amount of staking tokens to deposit function deposit(uint256 _amount) public { UserInfo storage user = userInfo[msg.sender]; uint256 finalDepositAmount = 0; updatePool(); if (user.amount > 0) { uint256 pending = user.amount * poolInfo.accRewardTokenPerShare / 1e30 - user.rewardDebt; if(pending > 0) { uint256 currentRewardBalance = rewardBalance(); if(currentRewardBalance > 0) { if(pending > currentRewardBalance) { safeTransferReward(address(msg.sender), currentRewardBalance); } else { safeTransferReward(address(msg.sender), pending); } } } } if (_amount > 0) { uint256 preStakeBalance = STAKE_TOKEN.balanceOf(address(this)); poolInfo.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount); finalDepositAmount = STAKE_TOKEN.balanceOf(address(this)) - preStakeBalance; user.amount = user.amount + finalDepositAmount; totalStaked = totalStaked + finalDepositAmount; } user.rewardDebt = user.amount * poolInfo.accRewardTokenPerShare / 1e30; emit Deposit(msg.sender, finalDepositAmount); } /// Withdraw rewards and/or staked tokens. Pass a 0 amount to withdraw only rewards /// @param _amount The amount of staking tokens to withdraw function withdraw(uint256 _amount) public { UserInfo storage user = userInfo[msg.sender]; require(user.amount >= _amount, "withdraw: not good"); updatePool(); uint256 pending = user.amount * poolInfo.accRewardTokenPerShare / 1e30 - user.rewardDebt; if(pending > 0) { uint256 currentRewardBalance = rewardBalance(); if(currentRewardBalance > 0) { if(pending > currentRewardBalance) { safeTransferReward(address(msg.sender), currentRewardBalance); } else { safeTransferReward(address(msg.sender), pending); } } } if(_amount > 0) { user.amount = user.amount - _amount; poolInfo.lpToken.safeTransfer(address(msg.sender), _amount); totalStaked = totalStaked - _amount; } user.rewardDebt = user.amount * poolInfo.accRewardTokenPerShare / 1e30; emit Withdraw(msg.sender, _amount); } /// Obtain the reward balance of this contract /// @return wei balace of conract function rewardBalance() public view returns (uint256) { uint256 balance = REWARD_TOKEN.balanceOf(address(this)); if (STAKE_TOKEN == REWARD_TOKEN) return balance - totalStaked; return balance; } // Deposit Rewards into contract function depositRewards(uint256 _amount) external { require(_amount > 0, 'Deposit value must be greater than 0.'); REWARD_TOKEN.safeTransferFrom(address(msg.sender), address(this), _amount); emit DepositRewards(_amount); } /// @param _to address to send reward token to /// @param _amount value of reward token to transfer function safeTransferReward(address _to, uint256 _amount) internal { REWARD_TOKEN.safeTransfer(_to, _amount); } /// @dev Obtain the stake balance of this contract function totalStakeTokenBalance() public view returns (uint256) { if (STAKE_TOKEN == REWARD_TOKEN) return totalStaked; return STAKE_TOKEN.balanceOf(address(this)); } /// @dev Obtain the stake token fees (if any) earned by reflect token function getStakeTokenFeeBalance() public view returns (uint256) { return STAKE_TOKEN.balanceOf(address(this)) - totalStaked; } /* Admin Functions */ /// @param _rewardPerBlock The amount of reward tokens to be given per block function setRewardPerBlock(uint256 _rewardPerBlock) external onlyOwner { rewardPerBlock = _rewardPerBlock; emit LogUpdatePool(bonusEndBlock, rewardPerBlock); } /// @dev Remove excess stake tokens earned by reflect fees function skimStakeTokenFees() external onlyOwner { uint256 stakeTokenFeeBalance = getStakeTokenFeeBalance(); STAKE_TOKEN.safeTransfer(msg.sender, stakeTokenFeeBalance); emit SkimStakeTokenFees(msg.sender, stakeTokenFeeBalance); } /* Emergency Functions */ // Withdraw without caring about rewards. EMERGENCY ONLY. function emergencyWithdraw() external { UserInfo storage user = userInfo[msg.sender]; poolInfo.lpToken.safeTransfer(address(msg.sender), user.amount); totalStaked = totalStaked - user.amount; user.amount = 0; user.rewardDebt = 0; emit EmergencyWithdraw(msg.sender, user.amount); } // Withdraw reward. EMERGENCY ONLY. function emergencyRewardWithdraw(uint256 _amount) external onlyOwner { require(_amount <= rewardBalance(), 'not enough rewards'); // Withdraw rewards safeTransferReward(address(msg.sender), _amount); emit EmergencyRewardWithdraw(msg.sender, _amount); } /// @notice A public function to sweep accidental BEP20 transfers to this contract. /// Tokens are sent to owner /// @param token The address of the BEP20 token to sweep function sweepToken(IERC20 token) external onlyOwner { require(address(token) != address(STAKE_TOKEN), "can not sweep stake token"); uint256 balance = token.balanceOf(address(this)); token.transfer(msg.sender, balance); emit EmergencySweepWithdraw(msg.sender, token, balance); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @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 () { 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; } }
// SPDX-License-Identifier: MIT // solhint-disable-next-line compiler-version pragma solidity ^0.8.0; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. */ bool private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { require(_initializing || !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } }
// SPDX-License-Identifier: MIT pragma solidity ^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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC20.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 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) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _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"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^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); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^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 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. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } }
{ "remappings": [], "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "istanbul", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } } }
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[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"DepositRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EmergencyRewardWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"contract IERC20","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EmergencySweepWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EmergencyWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"bonusEndBlock","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"rewardPerBlock","type":"uint256"}],"name":"LogUpdatePool","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":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"SkimStakeTokenFees","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[],"name":"REWARD_TOKEN","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"STAKE_TOKEN","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"bonusEndBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"depositRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"emergencyRewardWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_from","type":"uint256"},{"internalType":"uint256","name":"_to","type":"uint256"}],"name":"getMultiplier","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStakeTokenFeeBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_stakeToken","type":"address"},{"internalType":"contract IERC20","name":"_rewardToken","type":"address"},{"internalType":"uint256","name":"_rewardPerBlock","type":"uint256"},{"internalType":"uint256","name":"_startBlock","type":"uint256"},{"internalType":"uint256","name":"_bonusEndBlock","type":"uint256"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"pendingReward","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"poolInfo","outputs":[{"internalType":"contract IERC20","name":"lpToken","type":"address"},{"internalType":"uint256","name":"allocPoint","type":"uint256"},{"internalType":"uint256","name":"lastRewardBlock","type":"uint256"},{"internalType":"uint256","name":"accRewardTokenPerShare","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardPerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_bonusEndBlock","type":"uint256"}],"name":"setBonusEndBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_rewardPerBlock","type":"uint256"}],"name":"setRewardPerBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"skimStakeTokenFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"sweepToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalStakeTokenBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"updatePool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userInfo","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"rewardDebt","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Deployed Bytecode
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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.