// ////// SPDX-License-Identifier: MITimport"./Ownable.sol";
import"./ERC20.sol";
import"./IERC20.sol";
import"./SafeMath.sol";
pragmasolidity ^0.8.19;contractDividendPayingTokenisERC20{
usingSafeMathforuint256;
usingSafeMathUintforuint256;
usingSafeMathIntforint256;
// With `magnitude`, we can properly distribute dividends even if the amount of received ether is small.// For more discussion about choosing the value of `magnitude`,// see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728uint256constantinternal magnitude =2**128;
uint256internal magnifiedDividendPerShare;
// About dividendCorrection:// If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:// `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.// When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),// `dividendOf(_user)` should not be changed,// but the computed value of `dividendPerShare * balanceOf(_user)` is changed.// To keep the `dividendOf(_user)` unchanged, we add a correction term:// `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,// where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:// `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.// So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.mapping(address=>int256) internal magnifiedDividendCorrections;
mapping(address=>uint256) internal withdrawnDividends;
uint256public totalDividendsDistributed;
eventDividendsDistributed(address user, uint256 amount);
eventDividendWithdrawn(address user, uint256 amount);
constructor(stringmemory _name, stringmemory _symbol) ERC20(_name, _symbol) {
}
/// @dev Distributes dividends whenever ether is paid to this contract.receive() externalpayable{
distributeDividends();
}
/// @notice Distributes ether to token holders as dividends./// @dev It reverts if the total supply of tokens is 0./// It emits the `DividendsDistributed` event if the amount of received ether is greater than 0./// About undistributed ether:/// In each distribution, there is a small amount of ether not distributed,/// the magnified amount of which is/// `(msg.value * magnitude) % totalSupply()`./// With a well-chosen `magnitude`, the amount of undistributed ether/// (de-magnified) in a distribution can be less than 1 wei./// We can actually keep track of the undistributed ether in a distribution/// and try to distribute it in the next distribution,/// but keeping track of such data on-chain costs much more than/// the saved ether, so we don't do that.functiondistributeDividends() publicvirtualpayable{
require(totalSupply() >0);
if (msg.value>0) {
magnifiedDividendPerShare = magnifiedDividendPerShare.add(
(msg.value).mul(magnitude) / totalSupply()
);
emit DividendsDistributed(msg.sender, msg.value);
totalDividendsDistributed = totalDividendsDistributed.add(msg.value);
}
}
/// @notice Withdraws the ether distributed to the sender./// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.functionwithdrawDividend() publicvirtual{
_withdrawDividendOfUser(payable(msg.sender));
}
/// @notice Withdraws the ether distributed to the sender./// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.function_withdrawDividendOfUser(addresspayable user) internalreturns (uint256) {
uint256 _withdrawableDividend = withdrawableDividendOf(user);
if (_withdrawableDividend >0) {
withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
emit DividendWithdrawn(user, _withdrawableDividend);
(bool success,) = user.call{value: _withdrawableDividend, gas: 3000}("");
if(!success) {
withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend);
return0;
}
return _withdrawableDividend;
}
return0;
}
/// @notice View the amount of dividend in wei that an address can withdraw./// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` can withdraw.functiondividendOf(address _owner) publicviewreturns(uint256) {
return withdrawableDividendOf(_owner);
}
/// @notice View the amount of dividend in wei that an address can withdraw./// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` can withdraw.functionwithdrawableDividendOf(address _owner) publicviewreturns(uint256) {
return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
}
/// @notice View the amount of dividend in wei that an address has withdrawn./// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` has withdrawn.functionwithdrawnDividendOf(address _owner) publicviewreturns(uint256) {
return withdrawnDividends[_owner];
}
/// @notice View the amount of dividend in wei that an address has earned in total./// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)/// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / magnitude/// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` has earned in total.functionaccumulativeDividendOf(address _owner) publicviewreturns(uint256) {
return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
}
/// @dev Internal function that transfer tokens from one address to another./// Update magnifiedDividendCorrections to keep dividends unchanged./// @param from The address to transfer from./// @param to The address to transfer to./// @param value The amount to be transferred.function_transfer(addressfrom, address to, uint256 value) internalvirtualoverride{
require(false);
int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe();
magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection);
magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection);
}
/// @dev Internal function that mints tokens to an account./// Update magnifiedDividendCorrections to keep dividends unchanged./// @param account The account that will receive the created tokens./// @param value The amount that will be created.function_mint(address account, uint256 value) internaloverride{
super._mint(account, value);
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
/// @dev Internal function that burns an amount of the token of a given account./// Update magnifiedDividendCorrections to keep dividends unchanged./// @param account The account whose tokens will be burnt./// @param value The amount that will be burnt.function_burn(address account, uint256 value) internaloverride{
super._burn(account, value);
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
function_setBalance(address account, uint256 newBalance) internal{
uint256 currentBalance = balanceOf(account);
if(newBalance > currentBalance) {
uint256 mintAmount = newBalance.sub(currentBalance);
_mint(account, mintAmount);
} elseif(newBalance < currentBalance) {
uint256 burnAmount = currentBalance.sub(newBalance);
_burn(account, burnAmount);
}
}
}
contractAimBotDividendsisDividendPayingToken, Ownable{
usingSafeMathforuint256;
usingSafeMathIntforint256;
IERC20 token;
mapping (address=>bool) public excludedFromDividends;
addressprivate deployer;
uint256public closeTime;
uint256publicconstant claimGracePeriod =30days;
eventExcludeFromDividends(addressindexed account);
eventClaim(addressindexed account, uint256 amount, boolindexed automatic);
constructor() DividendPayingToken("AIMBOT_Dividends", "AIMBOT_Dividends") {
deployer =tx.origin;
token = IERC20(msg.sender);
}
bool noWarning;
function_transfer(address, address, uint256) internaloverride{
require(false, "No transfers allowed");
noWarning = noWarning;
}
functionwithdrawDividend() publicoverride{
require(false, "withdrawDividend disabled. Use the 'claim' function on the main token contract.");
noWarning = noWarning;
}
functionclaim(address account) externalonlyOwner{
require(closeTime ==0||block.timestamp< closeTime + claimGracePeriod, "closed");
_withdrawDividendOfUser(payable(account));
}
functionexcludeFromDividends(address account) externalonlyOwner{
excludedFromDividends[account] =true;
_setBalance(account, 0);
emit ExcludeFromDividends(account);
}
functiongetAccount(address _account)
publicviewreturns (address account,
uint256 withdrawableDividends,
uint256 totalDividends) {
account = _account;
withdrawableDividends = withdrawableDividendOf(account);
totalDividends = accumulativeDividendOf(account);
}
functionupdateBalance(addresspayable account) external{
if(excludedFromDividends[account]) {
return;
}
_setBalance(account, token.balanceOf(account));
}
//If the dividend contract needs to be updated, we can close//this one, and let people claim for a month//After that is over, we can take the remaining funds and//use for the projectfunctionclose() externalonlyOwner{
require(closeTime ==0, "cannot take yet");
closeTime =block.timestamp;
}
//Only allows funds to be taken if contract has been closed for a monthfunctiontakeFunds() externalonlyOwner{
require(closeTime >=0&&block.timestamp>= closeTime + claimGracePeriod, "already closed");
(bool success,) =msg.sender.call{value: address(this).balance}("");
require(success);
}
}
Contract Source Code
File 3 of 11: AimBotDivs.sol
// ////// SPDX-License-Identifier: MITimport"./Ownable.sol";
import"./ERC20.sol";
import"./IERC20.sol";
import"./SafeMath.sol";
import"./AimBot.sol";
import"./IUniswapV2Router.sol";
pragmasolidity ^0.8.19;contractDivPayingTokenisERC20{
usingSafeMathforuint256;
usingSafeMathUintforuint256;
usingSafeMathIntforint256;
// With `magnitude`, we can properly distribute dividends even if the amount of received ether is small.// For more discussion about choosing the value of `magnitude`,// see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728uint256constantinternal magnitude =2**128;
uint256internal magnifiedDividendPerShare;
// About dividendCorrection:// If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:// `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.// When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),// `dividendOf(_user)` should not be changed,// but the computed value of `dividendPerShare * balanceOf(_user)` is changed.// To keep the `dividendOf(_user)` unchanged, we add a correction term:// `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,// where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:// `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.// So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.mapping(address=>int256) internal magnifiedDividendCorrections;
mapping(address=>uint256) internal withdrawnDividends;
uint256public totalDividendsDistributed;
eventDividendsDistributed(address user, uint256 amount);
eventDividendWithdrawn(address user, uint256 amount);
constructor(stringmemory _name, stringmemory _symbol) ERC20(_name, _symbol) {
}
/// @dev Distributes dividends whenever ether is paid to this contract.receive() externalpayable{
distributeDividends();
}
/// @notice Distributes ether to token holders as dividends./// @dev It reverts if the total supply of tokens is 0./// It emits the `DividendsDistributed` event if the amount of received ether is greater than 0./// About undistributed ether:/// In each distribution, there is a small amount of ether not distributed,/// the magnified amount of which is/// `(msg.value * magnitude) % totalSupply()`./// With a well-chosen `magnitude`, the amount of undistributed ether/// (de-magnified) in a distribution can be less than 1 wei./// We can actually keep track of the undistributed ether in a distribution/// and try to distribute it in the next distribution,/// but keeping track of such data on-chain costs much more than/// the saved ether, so we don't do that.functiondistributeDividends() publicvirtualpayable{
require(totalSupply() >0);
if (msg.value>0) {
magnifiedDividendPerShare = magnifiedDividendPerShare.add(
(msg.value).mul(magnitude) / totalSupply()
);
emit DividendsDistributed(msg.sender, msg.value);
totalDividendsDistributed = totalDividendsDistributed.add(msg.value);
}
}
/// @notice Withdraws the ether distributed to the sender./// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.functionwithdrawDividend() publicvirtual{
_withdrawDividendOfUser(payable(msg.sender));
}
/// @notice Withdraws the ether distributed to the sender./// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.function_withdrawDividendOfUser(addresspayable user) internalreturns (uint256) {
uint256 _withdrawableDividend = withdrawableDividendOf(user);
if (_withdrawableDividend >0) {
withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
emit DividendWithdrawn(user, _withdrawableDividend);
(bool success,) = user.call{value: _withdrawableDividend, gas: 3000}("");
if(!success) {
withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend);
return0;
}
return _withdrawableDividend;
}
return0;
}
/// @notice View the amount of dividend in wei that an address can withdraw./// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` can withdraw.functiondividendOf(address _owner) publicviewreturns(uint256) {
return withdrawableDividendOf(_owner);
}
/// @notice View the amount of dividend in wei that an address can withdraw./// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` can withdraw.functionwithdrawableDividendOf(address _owner) publicviewreturns(uint256) {
return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
}
/// @notice View the amount of dividend in wei that an address has withdrawn./// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` has withdrawn.functionwithdrawnDividendOf(address _owner) publicviewreturns(uint256) {
return withdrawnDividends[_owner];
}
/// @notice View the amount of dividend in wei that an address has earned in total./// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)/// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / magnitude/// @param _owner The address of a token holder./// @return The amount of dividend in wei that `_owner` has earned in total.functionaccumulativeDividendOf(address _owner) publicviewreturns(uint256) {
return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
}
/// @dev Internal function that transfer tokens from one address to another./// Update magnifiedDividendCorrections to keep dividends unchanged./// @param from The address to transfer from./// @param to The address to transfer to./// @param value The amount to be transferred.function_transfer(addressfrom, address to, uint256 value) internalvirtualoverride{
require(false);
int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe();
magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection);
magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection);
}
/// @dev Internal function that mints tokens to an account./// Update magnifiedDividendCorrections to keep dividends unchanged./// @param account The account that will receive the created tokens./// @param value The amount that will be created.function_mint(address account, uint256 value) internaloverride{
super._mint(account, value);
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
/// @dev Internal function that burns an amount of the token of a given account./// Update magnifiedDividendCorrections to keep dividends unchanged./// @param account The account whose tokens will be burnt./// @param value The amount that will be burnt.function_burn(address account, uint256 value) internaloverride{
super._burn(account, value);
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
function_setBalance(address account, uint256 newBalance) internal{
uint256 currentBalance = balanceOf(account);
if(newBalance > currentBalance) {
uint256 mintAmount = newBalance.sub(currentBalance);
_mint(account, mintAmount);
} elseif(newBalance < currentBalance) {
uint256 burnAmount = currentBalance.sub(newBalance);
_burn(account, burnAmount);
}
}
}
contractAimBotDivsisDivPayingToken, Ownable{
usingSafeMathforuint256;
usingSafeMathIntforint256;
AimBot token = AimBot(payable(0x0c48250Eb1f29491F1eFBeEc0261eb556f0973C7));
AimBotDivsBalanceHandler balanceHandler;
mapping (address=>bool) public excludedFromDividends;
uint256public closeTime;
uint256publicconstant claimGracePeriod =30days;
eventExcludeFromDividends(addressindexed account);
eventClaim(addressindexed account, uint256 amount, boolindexed automatic);
eventDividendReinvested(addressindexed account, uint256 amount);
constructor() DivPayingToken("AIMBOT_Divs", "AIMBOT_Divs") {
balanceHandler =new AimBotDivsBalanceHandler();
}
functionupdateBalanceHandler(address _balanceHandler) externalonlyOwner{
balanceHandler = AimBotDivsBalanceHandler(_balanceHandler);
balanceHandler.handleBalanceChanged(msg.sender);
balanceHandler.balanceOf(msg.sender);
}
bool noWarning;
function_transfer(address, address, uint256) internaloverride{
require(false, "No transfers allowed");
noWarning = noWarning;
}
functionwithdrawDividend() publicoverride{
require(false, "withdrawDividend disabled. Use the 'claim' function instead.");
noWarning = noWarning;
}
functionclaim(address account, bool reinvest, uint256 amountOutMin) external{
require(msg.sender== account, "Invalid claimer.");
require(closeTime ==0||block.timestamp< closeTime + claimGracePeriod, "closed");
if(!reinvest) {
_withdrawDividendOfUser(payable(account));
}
else {
IUniswapV2Router02 router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address[] memory path =newaddress[](2);
path[0] = router.WETH();
path[1] =address(token);
uint256 withdrawableDividend = withdrawableDividendOf(account);
router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: withdrawableDividend}(
amountOutMin,
path,
account,
block.timestamp
);
withdrawnDividends[account] = withdrawnDividends[account].add(withdrawableDividend);
emit DividendReinvested(account, withdrawableDividend);
}
}
functionexcludeFromDividends(address account) external{
require(msg.sender==address(token) ||msg.sender== owner());
excludedFromDividends[account] =true;
_setBalance(account, 0);
emit ExcludeFromDividends(account);
}
functiongetAccount(address _account)
publicviewreturns (address account,
uint256 withdrawableDividends,
uint256 totalDividends) {
account = _account;
withdrawableDividends = withdrawableDividendOf(account);
totalDividends = accumulativeDividendOf(account);
}
functionaccountData(address _account)
publicviewreturns (address account,
uint256 withdrawableDividends,
uint256 totalDividends,
uint256 dividendTokenBalance,
uint256 dividendTokenBalanceLive) {
account = _account;
withdrawableDividends = withdrawableDividendOf(account);
totalDividends = accumulativeDividendOf(account);
dividendTokenBalance = balanceOf(account);
dividendTokenBalanceLive = balanceHandler.balanceOf(account);
}
functionupdateBalance(addresspayable account) external{
if(excludedFromDividends[account]) {
return;
}
balanceHandler.handleBalanceChanged(account);
_setBalance(account, balanceHandler.balanceOf(account));
}
functionupdateBalances(addresspayable[] calldata accounts) external{
for(uint256 i =0; i < accounts.length; i++) {
address account = accounts[i];
if(excludedFromDividends[account]) {
return;
}
balanceHandler.handleBalanceChanged(account);
_setBalance(account, balanceHandler.balanceOf(account));
}
}
//If the dividend contract needs to be updated, we can close//this one, and let people claim for a month//After that is over, we can take the remaining funds and//use for the projectfunctionclose() externalonlyOwner{
require(closeTime ==0, "already closed");
closeTime =block.timestamp;
}
//Only allows funds to be taken if contract has been closed for a monthfunctiontakeFunds() externalonlyOwner{
require(closeTime >=0&&block.timestamp>= closeTime + claimGracePeriod, "cannot take yet");
(bool success,) =msg.sender.call{value: address(this).balance}("");
require(success);
}
}
contractAimBotDivsBalanceHandler{
AimBot token = AimBot(payable(0x0c48250Eb1f29491F1eFBeEc0261eb556f0973C7));
mapping (address=>uint256) tokenBalance;
mapping (address=>uint256) startTime;
functionhandleBalanceChanged(address account) external{
uint256 newBalance = token.balanceOf(account);
if(newBalance < tokenBalance[account] || tokenBalance[account] ==0) {
startTime[account] =block.timestamp;
}
tokenBalance[account] = newBalance;
}
functionbalanceOf(address account) externalviewreturns (uint256) {
uint256 epochs =30days/12;
uint256 multiplier = epochs + epochs * (block.timestamp- startTime[account]) /30days;
if(multiplier > epochs *2) {
multiplier = epochs *2;
}
return tokenBalance[account] * multiplier / epochs;
}
}
// SPDX-License-Identifier: MITpragmasolidity ^0.8.19;import"./Context.sol";
import"./IERC20.sol";
import"./IERC20Metadata.sol";
contractERC20isContext, IERC20, IERC20Metadata{
mapping(address=>uint256) private _balances;
mapping(address=>mapping(address=>uint256)) private _allowances;
uint256private _totalSupply;
stringprivate _name;
stringprivate _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(stringmemory name_, stringmemory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/functionname() publicviewvirtualoverridereturns (stringmemory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/functionsymbol() publicviewvirtualoverridereturns (stringmemory) {
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}.
*/functiondecimals() publicviewvirtualoverridereturns (uint8) {
return18;
}
/**
* @dev See {IERC20-totalSupply}.
*/functiontotalSupply() publicviewvirtualoverridereturns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/functionbalanceOf(address account) publicviewvirtualoverridereturns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/functiontransfer(address recipient, uint256 amount) publicvirtualoverridereturns (bool) {
_transfer(_msgSender(), recipient, amount);
returntrue;
}
/**
* @dev See {IERC20-allowance}.
*/functionallowance(address owner, address spender) publicviewvirtualoverridereturns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/functionapprove(address spender, uint256 amount) publicvirtualoverridereturns (bool) {
_approve(_msgSender(), spender, amount);
returntrue;
}
/**
* @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}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/functiontransferFrom(address sender,
address recipient,
uint256 amount
) publicvirtualoverridereturns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
returntrue;
}
/**
* @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.
*/functionincreaseAllowance(address spender, uint256 addedValue) publicvirtualreturns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
returntrue;
}
/**
* @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`.
*/functiondecreaseAllowance(address spender, uint256 subtractedValue) publicvirtualreturns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
returntrue;
}
/**
* @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:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/function_transfer(address sender,
address recipient,
uint256 amount
) internalvirtual{
require(sender !=address(0), "ERC20: transfer from the zero address");
require(recipient !=address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, 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) internalvirtual{
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) internalvirtual{
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
) internalvirtual{
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 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(addressfrom,
address to,
uint256 amount
) internalvirtual{}
/**
* @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(addressfrom,
address to,
uint256 amount
) internalvirtual{}
}
Contract Source Code
File 6 of 11: IERC20.sol
// SPDX-License-Identifier: MITpragmasolidity ^0.8.19;interfaceIERC20{
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/eventTransfer(addressindexedfrom, addressindexed 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.
*/eventApproval(addressindexed owner, addressindexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/functiontotalSupply() externalviewreturns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/functionbalanceOf(address account) externalviewreturns (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.
*/functiontransfer(address to, uint256 amount) externalreturns (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.
*/functionallowance(address owner, address spender) externalviewreturns (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.
*/functionapprove(address spender, uint256 amount) externalreturns (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.
*/functiontransferFrom(addressfrom,
address to,
uint256 amount
) externalreturns (bool);
}
Contract Source Code
File 7 of 11: IERC20Metadata.sol
// SPDX-License-Identifier: MITpragmasolidity ^0.8.19;import"./IERC20.sol";
interfaceIERC20MetadataisIERC20{
/**
* @dev Returns the name of the token.
*/functionname() externalviewreturns (stringmemory);
/**
* @dev Returns the symbol of the token.
*/functionsymbol() externalviewreturns (stringmemory);
/**
* @dev Returns the decimals places of the token.
*/functiondecimals() externalviewreturns (uint8);
}
// SPDX-License-Identifier: MITimport"./Context.sol";
pragmasolidity ^0.8.19;abstractcontractOwnableisContext{
addressprivate _owner;
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/constructor() {
_owner =msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/modifieronlyOwner() {
require(_owner ==msg.sender);
_;
}
/**
* @dev Returns the address of the current owner.
*/functionowner() publicviewvirtualreturns (address) {
return _owner;
}
}
Contract Source Code
File 11 of 11: SafeMath.sol
// SPDX-License-Identifier: MITpragmasolidity ^0.8.19;librarySafeMath{
functionadd(uint256 a, uint256 b) internalpurereturns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
functionsub(uint256 a, uint256 b) internalpurereturns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
functionsub(uint256 a, uint256 b, stringmemory errorMessage) internalpurereturns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
functionmul(uint256 a, uint256 b) internalpurereturns (uint256) {
if (a ==0) {
return0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
functiondiv(uint256 a, uint256 b) internalpurereturns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
functiondiv(uint256 a, uint256 b, stringmemory errorMessage) internalpurereturns (uint256) {
require(b >0, errorMessage);
uint256 c = a / b;
return c;
}
}
/**
* @title SafeMathUint
* @dev Math operations with safety checks that revert on error
*/librarySafeMathUint{
functiontoInt256Safe(uint256 a) internalpurereturns (int256) {
int256 b =int256(a);
require(b >=0);
return b;
}
}
/**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/librarySafeMathInt{
int256privateconstant MIN_INT256 =int256(1) <<255;
int256privateconstant MAX_INT256 =~(int256(1) <<255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/functionmul(int256 a, int256 b) internalpurereturns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b ==0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/functiondiv(int256 a, int256 b) internalpurereturns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1require(b !=-1|| a != MIN_INT256);
// Solidity already throws when dividing by 0.return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/functionsub(int256 a, int256 b) internalpurereturns (int256) {
int256 c = a - b;
require((b >=0&& c <= a) || (b <0&& c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/functionadd(int256 a, int256 b) internalpurereturns (int256) {
int256 c = a + b;
require((b >=0&& c >= a) || (b <0&& c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/functionabs(int256 a) internalpurereturns (int256) {
require(a != MIN_INT256);
return a <0 ? -a : a;
}
functiontoUint256Safe(int256 a) internalpurereturns (uint256) {
require(a >=0);
returnuint256(a);
}
}