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Private Name Tags
ContractCreator:
Sponsored
Latest 5 from a total of 5 transactions
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Transfer Ownersh... | 37130036 | 701 days ago | IN | 0 FTM | 0.01388279 | ||||
Add | 37129828 | 701 days ago | IN | 0 FTM | 0.05359757 | ||||
Set Reward Per S... | 37129787 | 701 days ago | IN | 0 FTM | 0.01784548 | ||||
Initialize Rewar... | 37129695 | 701 days ago | IN | 0 FTM | 0.03123712 | ||||
0x60a06040 | 37129493 | 701 days ago | IN | Create: TimeBasedMasterChefRewarder | 0 FTM | 0.69641713 |
Latest 1 internal transaction
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37129493 | 701 days ago | Contract Creation | 0 FTM |
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Contract Name:
TimeBasedMasterChefRewarder
Compiler Version
v0.8.7+commit.e28d00a7
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.7; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "../interfaces/IRewarder.sol"; import "../token/BeethovenxMasterChef.sol"; contract TimeBasedMasterChefRewarder is IRewarder, Ownable { using SafeERC20 for ERC20; ERC20 public rewardToken; struct UserInfo { uint256 amount; uint256 rewardDebt; } struct PoolInfo { uint256 accRewardTokenPerShare; uint256 lastRewardTime; uint256 allocPoint; } /// @notice Info of each pool. mapping(uint256 => PoolInfo) public poolInfo; uint256[] public masterchefPoolIds; /// @notice Info of each user that stakes LP tokens. mapping(uint256 => mapping(address => UserInfo)) public userInfo; /// @dev Total allocation points. Must be the sum of all allocation points in all pools. uint256 totalAllocPoint; uint256 public rewardPerSecond = 0; uint256 public accTokenPrecision; address public immutable masterChef; event LogOnReward( address indexed user, uint256 indexed pid, uint256 amount, address indexed to ); event LogPoolAddition(uint256 indexed pid, uint256 allocPoint); event LogSetPool(uint256 indexed pid, uint256 allocPoint); event LogUpdatePool( uint256 indexed pid, uint256 lastRewardTime, uint256 lpSupply, uint256 accRewardTokenPerShare ); event LogRewardPerSecond(uint256 rewardPerSecond); event LogSetRewardToken( IERC20 indexed rewardToken, uint256 accTokenPrecision ); event LogInit(); constructor(address _masterChef) { masterChef = _masterChef; } /// @notice To allow contract verification on matching similar source, we dont provide this in the constructor function initializeRewardToken(ERC20 token) external onlyOwner { require( address(rewardToken) == address(0), "Reward token can only be set once" ); uint8 decimals = token.decimals(); require(decimals <= 18, "maximum 18 decimals supported"); /* since bpts have 18 decimals, and we want additional 12 decimals precision, we need to set the accTokenPrecision relative based on reward token decimals */ accTokenPrecision = 10**uint256(18 - decimals + 12); rewardToken = token; emit LogSetRewardToken(token, accTokenPrecision); } function onBeetsReward( uint256 pid, address userAddress, address recipient, uint256, uint256 newLpAmount ) external override onlyMasterChef { PoolInfo memory pool = updatePool(pid); UserInfo storage userPoolInfo = userInfo[pid][userAddress]; uint256 pending; if (userPoolInfo.amount > 0) { pending = ((userPoolInfo.amount * pool.accRewardTokenPerShare) / accTokenPrecision) - userPoolInfo.rewardDebt; if (pending > rewardToken.balanceOf(address(this))) { pending = rewardToken.balanceOf(address(this)); } } userPoolInfo.amount = newLpAmount; userPoolInfo.rewardDebt = (newLpAmount * pool.accRewardTokenPerShare) / accTokenPrecision; if (pending > 0) { rewardToken.safeTransfer(recipient, pending); } emit LogOnReward(userAddress, pid, pending, recipient); } function pendingTokens( uint256 pid, address user, uint256 ) external view override returns (IERC20[] memory rewardTokens, uint256[] memory rewardAmounts) { IERC20[] memory _rewardTokens = new IERC20[](1); _rewardTokens[0] = (rewardToken); uint256[] memory _rewardAmounts = new uint256[](1); _rewardAmounts[0] = pendingToken(pid, user); return (_rewardTokens, _rewardAmounts); } /// @notice Sets the rewards per second to be distributed. Can only be called by the owner. /// @param _rewardPerSecond The amount of token rewards to be distributed per second. function setRewardPerSecond(uint256 _rewardPerSecond) public onlyOwner { rewardPerSecond = _rewardPerSecond; emit LogRewardPerSecond(_rewardPerSecond); } modifier onlyMasterChef() { require( msg.sender == masterChef, "Only MasterChef can call this function." ); _; } /// @notice Returns the number of rewarded pools. function poolLength() public view returns (uint256 pools) { pools = masterchefPoolIds.length; } /// @notice Add a new LP to the pool. Can only be called by the owner. /// @param allocPoint AP of the new pool. /// @param pid Pid on MasterChef function add(uint256 pid, uint256 allocPoint) public onlyOwner { require(poolInfo[pid].lastRewardTime == 0, "Pool already exists"); uint256 lastRewardTime = block.timestamp; totalAllocPoint = totalAllocPoint + allocPoint; poolInfo[pid] = PoolInfo({ allocPoint: allocPoint, lastRewardTime: lastRewardTime, accRewardTokenPerShare: 0 }); masterchefPoolIds.push(pid); emit LogPoolAddition(pid, allocPoint); } /// @notice Update the given pool's reward token allocation point and `IRewarder` contract. Can only be called by the owner. /// @param pid The index of the MasterChef pool. See `poolInfo`. /// @param allocPoint New AP of the pool. function set(uint256 pid, uint256 allocPoint) public onlyOwner { require(poolInfo[pid].lastRewardTime != 0, "Pool does not exist"); totalAllocPoint = totalAllocPoint - poolInfo[pid].allocPoint + allocPoint; poolInfo[pid].allocPoint = allocPoint; emit LogSetPool(pid, allocPoint); } /// @notice View function to see pending Token /// @param _pid The index of the MasterChef pool. See `poolInfo`. /// @param _user Address of user. /// @return pending rewards for a given user. function pendingToken(uint256 _pid, address _user) public view returns (uint256 pending) { PoolInfo memory pool = poolInfo[_pid]; if (pool.lastRewardTime == 0) { pending = 0; } else { UserInfo storage user = userInfo[_pid][_user]; uint256 accRewardTokenPerShare = pool.accRewardTokenPerShare; uint256 totalLpSupply = BeethovenxMasterChef(masterChef) .lpTokens(_pid) .balanceOf(masterChef); if (block.timestamp > pool.lastRewardTime && totalLpSupply != 0) { uint256 timeSinceLastReward = block.timestamp - pool.lastRewardTime; uint256 rewards = (timeSinceLastReward * rewardPerSecond * pool.allocPoint) / totalAllocPoint; accRewardTokenPerShare = accRewardTokenPerShare + ((rewards * accTokenPrecision) / totalLpSupply); } pending = ((user.amount * accRewardTokenPerShare) / accTokenPrecision) - user.rewardDebt; if (pending > rewardToken.balanceOf(address(this))) { pending = rewardToken.balanceOf(address(this)); } } } /// @notice Update reward variables for all pools. Be careful of gas spending! /// @param pids Pool IDs of all to be updated. Make sure to update all active pools. function massUpdatePools(uint256[] calldata pids) external { uint256 len = pids.length; for (uint256 i = 0; i < len; ++i) { updatePool(pids[i]); } } /// @notice Update reward variables of the given pool. /// @param pid The index of the pool. See `poolInfo`. /// @return pool Returns the pool that was updated. function updatePool(uint256 pid) public returns (PoolInfo memory pool) { pool = poolInfo[pid]; if (pool.lastRewardTime != 0 && block.timestamp > pool.lastRewardTime) { uint256 totalLpSupply = BeethovenxMasterChef(masterChef) .lpTokens(pid) .balanceOf(masterChef); if (totalLpSupply > 0) { uint256 time = block.timestamp - pool.lastRewardTime; uint256 tokenReward = (time * rewardPerSecond * pool.allocPoint) / totalAllocPoint; pool.accRewardTokenPerShare = pool.accRewardTokenPerShare + ((tokenReward * accTokenPrecision) / totalLpSupply); } pool.lastRewardTime = block.timestamp; poolInfo[pid] = pool; emit LogUpdatePool( pid, pool.lastRewardTime, totalLpSupply, pool.accRewardTokenPerShare ); } } /// @notice Top up reward token as a safer alternative to transfer /// @param amount Amount of rewards to add function topUpRewards(uint256 amount) external { rewardToken.safeTransferFrom(msg.sender, address(this), amount); } /// @notice sets rewards per second to 0 and withdraws remaining funds /// @param withdrawRemainingFundsTo where to withdraaw the remaining funds to function shutDown(address withdrawRemainingFundsTo) external onlyOwner { setRewardPerSecond(0); rewardToken.transfer( withdrawRemainingFundsTo, rewardToken.balanceOf(address(this)) ); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) 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() { _transferOwnership(_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 { _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); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol) 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' 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 require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.7; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; interface IRewarder { function onBeetsReward( uint256 pid, address user, address recipient, uint256 beetsAmount, uint256 newLpAmount ) external; function pendingTokens( uint256 pid, address user, uint256 beetsAmount ) external view returns (IERC20[] memory, uint256[] memory); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.7; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol"; import "./BeethovenxToken.sol"; import "../interfaces/IRewarder.sol"; /* This master chef is based on SUSHI's version with some adjustments: - Upgrade to pragma 0.8.7 - therefore remove usage of SafeMath (built in overflow check for solidity > 8) - Merge sushi's master chef V1 & V2 (no usage of dummy pool) - remove withdraw function (without harvest) => requires the rewardDebt to be an signed int instead of uint which requires a lot of casting and has no real usecase for us - no dev emissions, but treasury emissions instead - treasury percentage is subtracted from emissions instead of added on top - update of emission rate with upper limit of 6 BEETS/block - more require checks in general */ // Have fun reading it. Hopefully it's still bug-free contract BeethovenxMasterChef is Ownable { using SafeERC20 for IERC20; using EnumerableSet for EnumerableSet.AddressSet; // Info of each user. struct UserInfo { uint256 amount; // How many LP tokens the user has provided. uint256 rewardDebt; // Reward debt. See explanation below. // // We do some fancy math here. Basically, any point in time, the amount of BEETS // entitled to a user but is pending to be distributed is: // // pending reward = (user.amount * pool.accBeetsPerShare) - user.rewardDebt // // Whenever a user deposits or withdraws LP tokens to a pool. Here's what happens: // 1. The pool's `accBeetsPerShare` (and `lastRewardBlock`) gets updated. // 2. User receives the pending reward sent to his/her address. // 3. User's `amount` gets updated. // 4. User's `rewardDebt` gets updated. } // Info of each pool. struct PoolInfo { // we have a fixed number of BEETS tokens released per block, each pool gets his fraction based on the allocPoint uint256 allocPoint; // How many allocation points assigned to this pool. the fraction BEETS to distribute per block. uint256 lastRewardBlock; // Last block number that BEETS distribution occurs. uint256 accBeetsPerShare; // Accumulated BEETS per LP share. this is multiplied by ACC_BEETS_PRECISION for more exact results (rounding errors) } // The BEETS TOKEN! BeethovenxToken public beets; // Treasury address. address public treasuryAddress; // BEETS tokens created per block. uint256 public beetsPerBlock; uint256 private constant ACC_BEETS_PRECISION = 1e12; // distribution percentages: a value of 1000 = 100% // 12.8% percentage of pool rewards that goes to the treasury. uint256 public constant TREASURY_PERCENTAGE = 128; // 87.2% percentage of pool rewards that goes to LP holders. uint256 public constant POOL_PERCENTAGE = 872; // Info of each pool. PoolInfo[] public poolInfo; // Info of each user that stakes LP tokens per pool. poolId => address => userInfo /// @notice Address of the LP token for each MCV pool. IERC20[] public lpTokens; EnumerableSet.AddressSet private lpTokenAddresses; /// @notice Address of each `IRewarder` contract in MCV. IRewarder[] public rewarder; mapping(uint256 => mapping(address => UserInfo)) public userInfo; // mapping form poolId => user Address => User Info // Total allocation points. Must be the sum of all allocation points in all pools. uint256 public totalAllocPoint = 0; // The block number when BEETS mining starts. uint256 public startBlock; event Deposit( address indexed user, uint256 indexed pid, uint256 amount, address indexed to ); event Withdraw( address indexed user, uint256 indexed pid, uint256 amount, address indexed to ); event EmergencyWithdraw( address indexed user, uint256 indexed pid, uint256 amount, address indexed to ); event Harvest(address indexed user, uint256 indexed pid, uint256 amount); event LogPoolAddition( uint256 indexed pid, uint256 allocPoint, IERC20 indexed lpToken, IRewarder indexed rewarder ); event LogSetPool( uint256 indexed pid, uint256 allocPoint, IRewarder indexed rewarder, bool overwrite ); event LogUpdatePool( uint256 indexed pid, uint256 lastRewardBlock, uint256 lpSupply, uint256 accBeetsPerShare ); event SetTreasuryAddress( address indexed oldAddress, address indexed newAddress ); event UpdateEmissionRate(address indexed user, uint256 _beetsPerSec); constructor( BeethovenxToken _beets, address _treasuryAddress, uint256 _beetsPerBlock, uint256 _startBlock ) { require( _beetsPerBlock <= 6e18, "maximum emission rate of 6 beets per block exceeded" ); beets = _beets; treasuryAddress = _treasuryAddress; beetsPerBlock = _beetsPerBlock; startBlock = _startBlock; } function poolLength() external view returns (uint256) { return poolInfo.length; } // Add a new lp to the pool. Can only be called by the owner. function add( uint256 _allocPoint, IERC20 _lpToken, IRewarder _rewarder ) public onlyOwner { require( Address.isContract(address(_lpToken)), "add: LP token must be a valid contract" ); require( Address.isContract(address(_rewarder)) || address(_rewarder) == address(0), "add: rewarder must be contract or zero" ); // we make sure the same LP cannot be added twice which would cause trouble require( !lpTokenAddresses.contains(address(_lpToken)), "add: LP already added" ); // respect startBlock! uint256 lastRewardBlock = block.number > startBlock ? block.number : startBlock; totalAllocPoint = totalAllocPoint + _allocPoint; // LP tokens, rewarders & pools are always on the same index which translates into the pid lpTokens.push(_lpToken); lpTokenAddresses.add(address(_lpToken)); rewarder.push(_rewarder); poolInfo.push( PoolInfo({ allocPoint: _allocPoint, lastRewardBlock: lastRewardBlock, accBeetsPerShare: 0 }) ); emit LogPoolAddition( lpTokens.length - 1, _allocPoint, _lpToken, _rewarder ); } // Update the given pool's BEETS allocation point. Can only be called by the owner. /// @param _pid The index of the pool. See `poolInfo`. /// @param _allocPoint New AP of the pool. /// @param _rewarder Address of the rewarder delegate. /// @param overwrite True if _rewarder should be `set`. Otherwise `_rewarder` is ignored. function set( uint256 _pid, uint256 _allocPoint, IRewarder _rewarder, bool overwrite ) public onlyOwner { require( Address.isContract(address(_rewarder)) || address(_rewarder) == address(0), "set: rewarder must be contract or zero" ); // we re-adjust the total allocation points totalAllocPoint = totalAllocPoint - poolInfo[_pid].allocPoint + _allocPoint; poolInfo[_pid].allocPoint = _allocPoint; if (overwrite) { rewarder[_pid] = _rewarder; } emit LogSetPool( _pid, _allocPoint, overwrite ? _rewarder : rewarder[_pid], overwrite ); } // View function to see pending BEETS on frontend. function pendingBeets(uint256 _pid, address _user) external view returns (uint256 pending) { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][_user]; // how many BEETS per lp token uint256 accBeetsPerShare = pool.accBeetsPerShare; // total staked lp tokens in this pool uint256 lpSupply = lpTokens[_pid].balanceOf(address(this)); if (block.number > pool.lastRewardBlock && lpSupply != 0) { uint256 blocksSinceLastReward = block.number - pool.lastRewardBlock; // based on the pool weight (allocation points) we calculate the beets rewarded for this specific pool uint256 beetsRewards = (blocksSinceLastReward * beetsPerBlock * pool.allocPoint) / totalAllocPoint; // we take parts of the rewards for treasury, these can be subject to change, so we recalculate it // a value of 1000 = 100% uint256 beetsRewardsForPool = (beetsRewards * POOL_PERCENTAGE) / 1000; // we calculate the new amount of accumulated beets per LP token accBeetsPerShare = accBeetsPerShare + ((beetsRewardsForPool * ACC_BEETS_PRECISION) / lpSupply); } // based on the number of LP tokens the user owns, we calculate the pending amount by subtracting the amount // which he is not eligible for (joined the pool later) or has already harvested pending = (user.amount * accBeetsPerShare) / ACC_BEETS_PRECISION - user.rewardDebt; } /// @notice Update reward variables for all pools. Be careful of gas spending! /// @param pids Pool IDs of all to be updated. Make sure to update all active pools. function massUpdatePools(uint256[] calldata pids) external { uint256 len = pids.length; for (uint256 i = 0; i < len; ++i) { updatePool(pids[i]); } } // Update reward variables of the given pool to be up-to-date. function updatePool(uint256 _pid) public returns (PoolInfo memory pool) { pool = poolInfo[_pid]; if (block.number > pool.lastRewardBlock) { // total lp tokens staked for this pool uint256 lpSupply = lpTokens[_pid].balanceOf(address(this)); if (lpSupply > 0) { uint256 blocksSinceLastReward = block.number - pool.lastRewardBlock; // rewards for this pool based on his allocation points uint256 beetsRewards = (blocksSinceLastReward * beetsPerBlock * pool.allocPoint) / totalAllocPoint; uint256 beetsRewardsForPool = (beetsRewards * POOL_PERCENTAGE) / 1000; beets.mint( treasuryAddress, (beetsRewards * TREASURY_PERCENTAGE) / 1000 ); beets.mint(address(this), beetsRewardsForPool); pool.accBeetsPerShare = pool.accBeetsPerShare + ((beetsRewardsForPool * ACC_BEETS_PRECISION) / lpSupply); } pool.lastRewardBlock = block.number; poolInfo[_pid] = pool; emit LogUpdatePool( _pid, pool.lastRewardBlock, lpSupply, pool.accBeetsPerShare ); } } // Deposit LP tokens to MasterChef for BEETS allocation. function deposit( uint256 _pid, uint256 _amount, address _to ) public { PoolInfo memory pool = updatePool(_pid); UserInfo storage user = userInfo[_pid][_to]; user.amount = user.amount + _amount; // since we add more LP tokens, we have to keep track of the rewards he is not eligible for // if we would not do that, he would get rewards like he added them since the beginning of this pool // note that only the accBeetsPerShare have the precision applied user.rewardDebt = user.rewardDebt + (_amount * pool.accBeetsPerShare) / ACC_BEETS_PRECISION; IRewarder _rewarder = rewarder[_pid]; if (address(_rewarder) != address(0)) { _rewarder.onBeetsReward(_pid, _to, _to, 0, user.amount); } lpTokens[_pid].safeTransferFrom(msg.sender, address(this), _amount); emit Deposit(msg.sender, _pid, _amount, _to); } function harvestAll(uint256[] calldata _pids, address _to) external { for (uint256 i = 0; i < _pids.length; i++) { if (userInfo[_pids[i]][msg.sender].amount > 0) { harvest(_pids[i], _to); } } } /// @notice Harvest proceeds for transaction sender to `_to`. /// @param _pid The index of the pool. See `poolInfo`. /// @param _to Receiver of BEETS rewards. function harvest(uint256 _pid, address _to) public { PoolInfo memory pool = updatePool(_pid); UserInfo storage user = userInfo[_pid][msg.sender]; // this would be the amount if the user joined right from the start of the farm uint256 accumulatedBeets = (user.amount * pool.accBeetsPerShare) / ACC_BEETS_PRECISION; // subtracting the rewards the user is not eligible for uint256 eligibleBeets = accumulatedBeets - user.rewardDebt; // we set the new rewardDebt to the current accumulated amount of rewards for his amount of LP token user.rewardDebt = accumulatedBeets; if (eligibleBeets > 0) { safeBeetsTransfer(_to, eligibleBeets); } IRewarder _rewarder = rewarder[_pid]; if (address(_rewarder) != address(0)) { _rewarder.onBeetsReward( _pid, msg.sender, _to, eligibleBeets, user.amount ); } emit Harvest(msg.sender, _pid, eligibleBeets); } /// @notice Withdraw LP tokens from MCV and harvest proceeds for transaction sender to `_to`. /// @param _pid The index of the pool. See `poolInfo`. /// @param _amount LP token amount to withdraw. /// @param _to Receiver of the LP tokens and BEETS rewards. function withdrawAndHarvest( uint256 _pid, uint256 _amount, address _to ) public { PoolInfo memory pool = updatePool(_pid); UserInfo storage user = userInfo[_pid][msg.sender]; require(_amount <= user.amount, "cannot withdraw more than deposited"); // this would be the amount if the user joined right from the start of the farm uint256 accumulatedBeets = (user.amount * pool.accBeetsPerShare) / ACC_BEETS_PRECISION; // subtracting the rewards the user is not eligible for uint256 eligibleBeets = accumulatedBeets - user.rewardDebt; /* after harvest & withdraw, he should be eligible for exactly 0 tokens => userInfo.amount * pool.accBeetsPerShare / ACC_BEETS_PRECISION == userInfo.rewardDebt since we are removing some LP's from userInfo.amount, we also have to remove the equivalent amount of reward debt */ user.rewardDebt = accumulatedBeets - (_amount * pool.accBeetsPerShare) / ACC_BEETS_PRECISION; user.amount = user.amount - _amount; safeBeetsTransfer(_to, eligibleBeets); IRewarder _rewarder = rewarder[_pid]; if (address(_rewarder) != address(0)) { _rewarder.onBeetsReward( _pid, msg.sender, _to, eligibleBeets, user.amount ); } lpTokens[_pid].safeTransfer(_to, _amount); emit Withdraw(msg.sender, _pid, _amount, _to); emit Harvest(msg.sender, _pid, eligibleBeets); } // Withdraw without caring about rewards. EMERGENCY ONLY. function emergencyWithdraw(uint256 _pid, address _to) public { UserInfo storage user = userInfo[_pid][msg.sender]; uint256 amount = user.amount; user.amount = 0; user.rewardDebt = 0; IRewarder _rewarder = rewarder[_pid]; if (address(_rewarder) != address(0)) { _rewarder.onBeetsReward(_pid, msg.sender, _to, 0, 0); } // Note: transfer can fail or succeed if `amount` is zero. lpTokens[_pid].safeTransfer(_to, amount); emit EmergencyWithdraw(msg.sender, _pid, amount, _to); } // Safe BEETS transfer function, just in case if rounding error causes pool to not have enough BEETS. function safeBeetsTransfer(address _to, uint256 _amount) internal { uint256 beetsBalance = beets.balanceOf(address(this)); if (_amount > beetsBalance) { beets.transfer(_to, beetsBalance); } else { beets.transfer(_to, _amount); } } // Update treasury address by the owner. function treasury(address _treasuryAddress) public onlyOwner { treasuryAddress = _treasuryAddress; emit SetTreasuryAddress(treasuryAddress, _treasuryAddress); } function updateEmissionRate(uint256 _beetsPerBlock) public onlyOwner { require( _beetsPerBlock <= 6e18, "maximum emission rate of 6 beets per block exceeded" ); beetsPerBlock = _beetsPerBlock; emit UpdateEmissionRate(msg.sender, _beetsPerBlock); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) 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) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) 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 `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, 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 `from` to `to` 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 from, address to, 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 // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @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 * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 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"); (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"); (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"); (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"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, _allowances[owner][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = _allowances[owner][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Spend `amount` form the allowance of `owner` toward `spender`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance( address owner, address spender, uint256 amount ) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/structs/EnumerableSet.sol) pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { return _values(set._inner); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; assembly { result := store } return result; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.7; import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; contract BeethovenxToken is ERC20("BeethovenxToken", "BEETS"), Ownable { uint256 public constant MAX_SUPPLY = 250_000_000e18; // 250 million beets /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef). function mint(address _to, uint256 _amount) public onlyOwner { require( totalSupply() + _amount <= MAX_SUPPLY, "BEETS::mint: cannot exceed max supply" ); _mint(_to, _amount); } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_masterChef","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[],"name":"LogInit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"LogOnReward","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"allocPoint","type":"uint256"}],"name":"LogPoolAddition","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewardPerSecond","type":"uint256"}],"name":"LogRewardPerSecond","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"allocPoint","type":"uint256"}],"name":"LogSetPool","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"contract IERC20","name":"rewardToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"accTokenPrecision","type":"uint256"}],"name":"LogSetRewardToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lastRewardTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lpSupply","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"accRewardTokenPerShare","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"},{"inputs":[],"name":"accTokenPrecision","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"pid","type":"uint256"},{"internalType":"uint256","name":"allocPoint","type":"uint256"}],"name":"add","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ERC20","name":"token","type":"address"}],"name":"initializeRewardToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"pids","type":"uint256[]"}],"name":"massUpdatePools","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"masterChef","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"masterchefPoolIds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"pid","type":"uint256"},{"internalType":"address","name":"userAddress","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"newLpAmount","type":"uint256"}],"name":"onBeetsReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"},{"internalType":"address","name":"_user","type":"address"}],"name":"pendingToken","outputs":[{"internalType":"uint256","name":"pending","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"pid","type":"uint256"},{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"pendingTokens","outputs":[{"internalType":"contract IERC20[]","name":"rewardTokens","type":"address[]"},{"internalType":"uint256[]","name":"rewardAmounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"poolInfo","outputs":[{"internalType":"uint256","name":"accRewardTokenPerShare","type":"uint256"},{"internalType":"uint256","name":"lastRewardTime","type":"uint256"},{"internalType":"uint256","name":"allocPoint","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"poolLength","outputs":[{"internalType":"uint256","name":"pools","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardPerSecond","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardToken","outputs":[{"internalType":"contract ERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"pid","type":"uint256"},{"internalType":"uint256","name":"allocPoint","type":"uint256"}],"name":"set","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_rewardPerSecond","type":"uint256"}],"name":"setRewardPerSecond","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"withdrawRemainingFundsTo","type":"address"}],"name":"shutDown","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"topUpRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"pid","type":"uint256"}],"name":"updatePool","outputs":[{"components":[{"internalType":"uint256","name":"accRewardTokenPerShare","type":"uint256"},{"internalType":"uint256","name":"lastRewardTime","type":"uint256"},{"internalType":"uint256","name":"allocPoint","type":"uint256"}],"internalType":"struct TimeBasedMasterChefRewarder.PoolInfo","name":"pool","type":"tuple"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"userInfo","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"rewardDebt","type":"uint256"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000008166994d9ebbe5829ec86bd81258149b87facfd3
-----Decoded View---------------
Arg [0] : _masterChef (address): 0x8166994d9ebBe5829EC86Bd81258149B87faCfd3
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000008166994d9ebbe5829ec86bd81258149b87facfd3
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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.