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MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "SafeMath: modulo by zero"); return a % b; } }
/** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */
NatSpecMultiLine
div
function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; }
/** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 2080, 2418 ] }
8,000
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "SafeMath: modulo by zero"); return a % b; } }
/** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */
NatSpecMultiLine
mod
function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "SafeMath: modulo by zero"); return a % b; }
/** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 2870, 3027 ] }
8,001
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
totalSupply
function totalSupply() public view returns (uint256) { return _totalSupply; }
/** * @dev See `IERC20.totalSupply`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 290, 386 ] }
8,002
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
balanceOf
function balanceOf(address account) public view returns (uint256) { return _balances[account]; }
/** * @dev See `IERC20.balanceOf`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 444, 559 ] }
8,003
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
transfer
function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; }
/** * @dev See `IERC20.transfer`. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 767, 928 ] }
8,004
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
allowance
function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; }
/** * @dev See `IERC20.allowance`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 986, 1125 ] }
8,005
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
approve
function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); return true; }
/** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 1267, 1420 ] }
8,006
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
transferFrom
function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 1886, 2147 ] }
8,007
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
increaseAllowance
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue)); 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. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 2551, 2762 ] }
8,008
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
decreaseAllowance
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); 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`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 3260, 3481 ] }
8,009
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
_transfer
function _transfer(address sender, address recipient, uint256 amount) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); }
/** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 3966, 4400 ] }
8,010
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
_mint
function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, 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 * * - `to` cannot be the zero address. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 4676, 4989 ] }
8,011
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
_burn
function _burn(address account, uint256 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); }
/** * @dev Destoys `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. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 5316, 5627 ] }
8,012
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
_approve
function _approve(address owner, address spender, uint256 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); }
/** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 6062, 6402 ] }
8,013
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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 * * - `to` cannot be the zero address. */ function _mint(address account, uint256 amount) internal { require(account != address(0), "ERC20: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destoys `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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 `ERC20Mintable`. * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
_burnFrom
function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); }
/** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 6582, 6775 ] }
8,014
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20Detailed
contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; /** * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of * these values are immutable: they can only be set once during * construction. */ constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view 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. * * > Note that 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 returns (uint8) { return _decimals; } }
/** * @dev Optional functions from the ERC20 standard. */
NatSpecMultiLine
name
function name() public view returns (string memory) { return _name; }
/** * @dev Returns the name of the token. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 550, 638 ] }
8,015
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20Detailed
contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; /** * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of * these values are immutable: they can only be set once during * construction. */ constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view 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. * * > Note that 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 returns (uint8) { return _decimals; } }
/** * @dev Optional functions from the ERC20 standard. */
NatSpecMultiLine
symbol
function symbol() public view returns (string memory) { return _symbol; }
/** * @dev Returns the symbol of the token, usually a shorter version of the * name. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 752, 844 ] }
8,016
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
ERC20Detailed
contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; /** * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of * these values are immutable: they can only be set once during * construction. */ constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } /** * @dev Returns the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view 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. * * > Note that 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 returns (uint8) { return _decimals; } }
/** * @dev Optional functions from the ERC20 standard. */
NatSpecMultiLine
decimals
function decimals() public view returns (uint8) { return _decimals; }
/** * @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. * * > Note that 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`. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 1408, 1496 ] }
8,017
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
MoonBase
contract MoonBase is ERC20, ERC20Detailed { using SafeMath for uint256; IERC20 public based; constructor (address _based, string memory name, string memory symbol) public ERC20Detailed(name, symbol, 18) { based = IERC20(_based); } function balance() public view returns (uint) { return based.balanceOf(address(this)); } /// Returns price in BASED per share e18 function getPricePerFullShare() public view returns (uint) { uint256 supply = totalSupply(); if (supply == 0) return 0; return balance().mul(1e18).div(supply); } function depositAll() external { deposit(based.balanceOf(msg.sender)); } /// @param _amount amount in BASED to deposit function deposit(uint _amount) public { require(_amount > 0, "Nothing to deposit"); uint _pool = balance(); based.transferFrom(msg.sender, address(this), _amount); uint _after = balance(); _amount = _after.sub(_pool); // Additional check for deflationary baseds uint shares = 0; if (totalSupply() == 0) { shares = _amount; } else { shares = (_amount.mul(totalSupply())).div(_pool); } _mint(msg.sender, shares); } function withdrawAll() external { withdraw(balanceOf(msg.sender)); } function withdraw(uint _shares) public { uint _pool = balance(); uint _basedAmount = _pool.mul(_shares).div(totalSupply()); based.transfer(msg.sender, _basedAmount); _burn(msg.sender, _shares); } }
getPricePerFullShare
function getPricePerFullShare() public view returns (uint) { uint256 supply = totalSupply(); if (supply == 0) return 0; return balance().mul(1e18).div(supply); }
/// Returns price in BASED per share e18
NatSpecSingleLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 446, 644 ] }
8,018
MoonBase
MoonBase.sol
0x26cf82e4ae43d31ea51e72b663d26e26a75af729
Solidity
MoonBase
contract MoonBase is ERC20, ERC20Detailed { using SafeMath for uint256; IERC20 public based; constructor (address _based, string memory name, string memory symbol) public ERC20Detailed(name, symbol, 18) { based = IERC20(_based); } function balance() public view returns (uint) { return based.balanceOf(address(this)); } /// Returns price in BASED per share e18 function getPricePerFullShare() public view returns (uint) { uint256 supply = totalSupply(); if (supply == 0) return 0; return balance().mul(1e18).div(supply); } function depositAll() external { deposit(based.balanceOf(msg.sender)); } /// @param _amount amount in BASED to deposit function deposit(uint _amount) public { require(_amount > 0, "Nothing to deposit"); uint _pool = balance(); based.transferFrom(msg.sender, address(this), _amount); uint _after = balance(); _amount = _after.sub(_pool); // Additional check for deflationary baseds uint shares = 0; if (totalSupply() == 0) { shares = _amount; } else { shares = (_amount.mul(totalSupply())).div(_pool); } _mint(msg.sender, shares); } function withdrawAll() external { withdraw(balanceOf(msg.sender)); } function withdraw(uint _shares) public { uint _pool = balance(); uint _basedAmount = _pool.mul(_shares).div(totalSupply()); based.transfer(msg.sender, _basedAmount); _burn(msg.sender, _shares); } }
deposit
function deposit(uint _amount) public { require(_amount > 0, "Nothing to deposit"); uint _pool = balance(); based.transferFrom(msg.sender, address(this), _amount); uint _after = balance(); _amount = _after.sub(_pool); // Additional check for deflationary baseds uint shares = 0; if (totalSupply() == 0) { shares = _amount; } else { shares = (_amount.mul(totalSupply())).div(_pool); } _mint(msg.sender, shares); }
/// @param _amount amount in BASED to deposit
NatSpecSingleLine
v0.5.17+commit.d19bba13
Unlicense
bzzr://f935d5ccde7221a438fa262f6e70e4d860af324a927244a91e415368cc11da0d
{ "func_code_index": [ 792, 1332 ] }
8,019
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
withdraw
function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); }
/** * Withdraws rewards. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 423, 2170 ] }
8,020
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
beforeBalanceChange
function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); }
/** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 2498, 4225 ] }
8,021
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
getRewardsAmount
function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); }
/** * Returns the reward amount already withdrawn in the passed Property. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 4313, 4460 ] }
8,022
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
difference
function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); }
/** * Passthrough to `Lockup.difference` function. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 4525, 5070 ] }
8,023
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
_calculateAmount
function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); }
/** * Returns the holder reward. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 5117, 6045 ] }
8,024
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
_calculateWithdrawableAmount
function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); }
/** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 6166, 7015 ] }
8,025
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
calculateWithdrawableAmount
function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; }
/** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 7141, 7350 ] }
8,026
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
calculateTotalWithdrawableAmount
function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); }
/** * Returns the cumulative sum of the holder rewards of the passed Property. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 7443, 7764 ] }
8,027
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
__legacyWithdrawableAmount
function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); }
/** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 8041, 8541 ] }
8,028
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
__updateLegacyWithdrawableAmount
function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); }
/** * Updates and treats the reward of before DIP4 as already received. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 8627, 8908 ] }
8,029
WithdrawMigration
contracts/src/withdraw/LegacyWithdraw.sol
0xfe11597d2b26f1aa63fb8ac33ee86915cb466e5d
Solidity
LegacyWithdraw
contract LegacyWithdraw is IWithdraw, UsingConfig, UsingValidator { using SafeMath for uint256; using Decimals for uint256; event PropertyTransfer(address _property, address _from, address _to); /** * Initialize the passed address as AddressConfig address. */ // solium-disable-next-line no-empty-blocks constructor(address _config) public UsingConfig(_config) {} /** * Withdraws rewards. */ function withdraw(address _property) external { /** * Validates the passed Property address is included the Property address set. */ addressValidator().validateGroup(_property, config().propertyGroup()); /** * Gets the withdrawable rewards amount and the latest cumulative sum of the maximum mint amount. */ (uint256 value, uint256 lastPrice) = _calculateWithdrawableAmount( _property, msg.sender ); /** * Validates the result is not 0. */ require(value != 0, "withdraw value is 0"); /** * Saves the latest cumulative sum of the maximum mint amount. * By subtracting this value when calculating the next rewards, always withdrawal the difference from the previous time. */ WithdrawStorage withdrawStorage = getStorage(); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, msg.sender, lastPrice ); /** * Sets the number of unwithdrawn rewards to 0. */ withdrawStorage.setPendingWithdrawal(_property, msg.sender, 0); /** * Updates the withdrawal status to avoid double withdrawal for before DIP4. */ __updateLegacyWithdrawableAmount(_property, msg.sender); /** * Mints the holder reward. */ ERC20Mintable erc20 = ERC20Mintable(config().token()); require(erc20.mint(msg.sender, value), "dev mint failed"); /** * Since the total supply of tokens has changed, updates the latest maximum mint amount. */ ILockup lockup = ILockup(config().lockup()); lockup.update(); /** * Adds the reward amount already withdrawn in the passed Property. */ withdrawStorage.setRewardsAmount( _property, withdrawStorage.getRewardsAmount(_property).add(value) ); } /** * Updates the change in compensation amount due to the change in the ownership ratio of the passed Property. * When the ownership ratio of Property changes, the reward that the Property holder can withdraw will change. * It is necessary to update the status before and after the ownership ratio changes. */ function beforeBalanceChange( address _property, address _from, address _to ) external { /** * Validates the sender is Allocator contract. */ addressValidator().validateAddress(msg.sender, config().allocator()); WithdrawStorage withdrawStorage = getStorage(); /** * Gets the cumulative sum of the transfer source's "before transfer" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountFrom, uint256 priceFrom) = _calculateAmount( _property, _from ); /** * Gets the cumulative sum of the transfer destination's "before receive" withdrawable reward amount and the cumulative sum of the maximum mint amount. */ (uint256 amountTo, uint256 priceTo) = _calculateAmount(_property, _to); /** * Updates the last cumulative sum of the maximum mint amount of the transfer source and destination. */ withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _from, priceFrom ); withdrawStorage.setLastCumulativeGlobalHoldersPrice( _property, _to, priceTo ); /** * Gets the unwithdrawn reward amount of the transfer source and destination. */ uint256 pendFrom = withdrawStorage.getPendingWithdrawal( _property, _from ); uint256 pendTo = withdrawStorage.getPendingWithdrawal(_property, _to); /** * Adds the undrawn reward amount of the transfer source and destination. */ withdrawStorage.setPendingWithdrawal( _property, _from, pendFrom.add(amountFrom) ); withdrawStorage.setPendingWithdrawal( _property, _to, pendTo.add(amountTo) ); emit PropertyTransfer(_property, _from, _to); } /** * Returns the reward amount already withdrawn in the passed Property. */ function getRewardsAmount(address _property) external view returns (uint256) { return getStorage().getRewardsAmount(_property); } /** * Passthrough to `Lockup.difference` function. */ function difference( WithdrawStorage withdrawStorage, address _property, address _user ) private view returns ( uint256 _reward, uint256 _holdersAmount, uint256 _holdersPrice, uint256 _interestAmount, uint256 _interestPrice ) { /** * Gets and passes the last recorded cumulative sum of the maximum mint amount. */ uint256 _last = withdrawStorage.getLastCumulativeGlobalHoldersPrice( _property, _user ); return ILockup(config().lockup()).difference(_property, _last); } /** * Returns the holder reward. */ function _calculateAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { WithdrawStorage withdrawStorage = getStorage(); /** * Gets the latest cumulative sum of the maximum mint amount, * and the difference to the previous withdrawal of holder reward unit price. */ (uint256 reward, , uint256 _holdersPrice, , ) = difference( withdrawStorage, _property, _user ); /** * Gets the ownership ratio of the passed user and the Property. */ uint256 balance = ERC20Mintable(_property).balanceOf(_user); /** * Multiplied by the number of tokens to the holder reward unit price. */ uint256 value = _holdersPrice.mul(balance); /** * Returns the result after adjusted decimals to 10^18, and the latest cumulative sum of the maximum mint amount. */ return (value.divBasis().divBasis(), reward); } /** * Returns the total rewards currently available for withdrawal. (For calling from inside the contract) */ function _calculateWithdrawableAmount(address _property, address _user) private view returns (uint256 _amount, uint256 _price) { /** * Gets the latest withdrawal reward amount. */ (uint256 _value, uint256 price) = _calculateAmount(_property, _user); /** * If the passed Property has not authenticated, returns always 0. */ if ( IMetricsGroup(config().metricsGroup()).hasAssets(_property) == false ) { return (0, price); } /** * Gets the reward amount of before DIP4. */ uint256 legacy = __legacyWithdrawableAmount(_property, _user); /** * Gets the reward amount in saved without withdrawal and returns the sum of all values. */ uint256 value = _value .add(getStorage().getPendingWithdrawal(_property, _user)) .add(legacy); return (value, price); } /** * Returns the total rewards currently available for withdrawal. (For calling from external of the contract) */ function calculateWithdrawableAmount(address _property, address _user) external view returns (uint256) { (uint256 value, ) = _calculateWithdrawableAmount(_property, _user); return value; } /** * Returns the cumulative sum of the holder rewards of the passed Property. */ function calculateTotalWithdrawableAmount(address _property) external view returns (uint256) { (, uint256 _amount, , , ) = ILockup(config().lockup()).difference( _property, 0 ); /** * Adjusts decimals to 10^18 and returns the result. */ return _amount.divBasis().divBasis(); } /** * Returns the reward amount of the calculation model before DIP4. * It can be calculated by subtracting "the last cumulative sum of reward unit price" from * "the current cumulative sum of reward unit price," and multiplying by the balance of the user. */ function __legacyWithdrawableAmount(address _property, address _user) private view returns (uint256) { WithdrawStorage withdrawStorage = getStorage(); uint256 _last = withdrawStorage.getLastWithdrawalPrice( _property, _user ); uint256 price = withdrawStorage.getCumulativePrice(_property); uint256 priceGap = price.sub(_last); uint256 balance = ERC20Mintable(_property).balanceOf(_user); uint256 value = priceGap.mul(balance); return value.divBasis(); } /** * Updates and treats the reward of before DIP4 as already received. */ function __updateLegacyWithdrawableAmount(address _property, address _user) private { WithdrawStorage withdrawStorage = getStorage(); uint256 price = withdrawStorage.getCumulativePrice(_property); withdrawStorage.setLastWithdrawalPrice(_property, _user, price); } /** * Returns WithdrawStorage instance. */ function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); } }
/** * A contract that manages the withdrawal of holder rewards for Property holders. */
NatSpecMultiLine
getStorage
function getStorage() private view returns (WithdrawStorage) { return WithdrawStorage(config().withdrawStorage()); }
/** * Returns WithdrawStorage instance. */
NatSpecMultiLine
v0.5.17+commit.d19bba13
MPL-2.0
bzzr://667b5de3a803aaac8684108683c8810e13256a965db08b51f2f62d7cb8b8b153
{ "func_code_index": [ 8962, 9085 ] }
8,030
CAWD
CAWD.sol
0x0c3bf90635c32434865504d25380ed1b89ba8f9e
Solidity
BasicToken
contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { require(_to != address(0)); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } }
/** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */
NatSpecMultiLine
transfer
function transfer(address _to, uint256 _value) returns (bool) { require(_to != address(0)); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; }
/** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */
NatSpecMultiLine
v0.4.13+commit.fb4cb1a
bzzr://e37e53278298a0e4445254728b5b873eab252af2cf3e71de389661e067f1ff24
{ "func_code_index": [ 268, 606 ] }
8,031
CAWD
CAWD.sol
0x0c3bf90635c32434865504d25380ed1b89ba8f9e
Solidity
BasicToken
contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) returns (bool) { require(_to != address(0)); // SafeMath.sub will throw if there is not enough balance. balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; } }
/** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */
NatSpecMultiLine
balanceOf
function balanceOf(address _owner) constant returns (uint256 balance) { return balances[_owner]; }
/** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */
NatSpecMultiLine
v0.4.13+commit.fb4cb1a
bzzr://e37e53278298a0e4445254728b5b873eab252af2cf3e71de389661e067f1ff24
{ "func_code_index": [ 812, 921 ] }
8,032
CAWD
CAWD.sol
0x0c3bf90635c32434865504d25380ed1b89ba8f9e
Solidity
StandardToken
contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { require(_to != address(0)); var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { // To change the approve amount you first have to reduce the addresses` // allowance to zero by calling `approve(_spender, 0)` if it is not // already 0 to mitigate the race condition described here: // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 require((_value == 0) || (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } }
/** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */
NatSpecMultiLine
transferFrom
function transferFrom(address _from, address _to, uint256 _value) returns (bool) { require(_to != address(0)); var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; }
/** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */
NatSpecMultiLine
v0.4.13+commit.fb4cb1a
bzzr://e37e53278298a0e4445254728b5b873eab252af2cf3e71de389661e067f1ff24
{ "func_code_index": [ 392, 930 ] }
8,033
CAWD
CAWD.sol
0x0c3bf90635c32434865504d25380ed1b89ba8f9e
Solidity
StandardToken
contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { require(_to != address(0)); var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { // To change the approve amount you first have to reduce the addresses` // allowance to zero by calling `approve(_spender, 0)` if it is not // already 0 to mitigate the race condition described here: // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 require((_value == 0) || (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } }
/** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */
NatSpecMultiLine
approve
function approve(address _spender, uint256 _value) returns (bool) { // To change the approve amount you first have to reduce the addresses` // allowance to zero by calling `approve(_spender, 0)` if it is not // already 0 to mitigate the race condition described here: // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 require((_value == 0) || (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; }
/** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */
NatSpecMultiLine
v0.4.13+commit.fb4cb1a
bzzr://e37e53278298a0e4445254728b5b873eab252af2cf3e71de389661e067f1ff24
{ "func_code_index": [ 1166, 1714 ] }
8,034
CAWD
CAWD.sol
0x0c3bf90635c32434865504d25380ed1b89ba8f9e
Solidity
StandardToken
contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { require(_to != address(0)); var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { // To change the approve amount you first have to reduce the addresses` // allowance to zero by calling `approve(_spender, 0)` if it is not // already 0 to mitigate the race condition described here: // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 require((_value == 0) || (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } }
/** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */
NatSpecMultiLine
allowance
function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; }
/** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */
NatSpecMultiLine
v0.4.13+commit.fb4cb1a
bzzr://e37e53278298a0e4445254728b5b873eab252af2cf3e71de389661e067f1ff24
{ "func_code_index": [ 2038, 2176 ] }
8,035
CAWD
CAWD.sol
0x0c3bf90635c32434865504d25380ed1b89ba8f9e
Solidity
StandardToken
contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) returns (bool) { require(_to != address(0)); var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // require (_value <= _allowance); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) returns (bool) { // To change the approve amount you first have to reduce the addresses` // allowance to zero by calling `approve(_spender, 0)` if it is not // already 0 to mitigate the race condition described here: // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 require((_value == 0) || (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) constant returns (uint256 remaining) { return allowed[_owner][_spender]; } /** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */ function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } }
/** * @title Standard ERC20 token * * @dev Implementation of the basic standard token. * @dev https://github.com/ethereum/EIPs/issues/20 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol */
NatSpecMultiLine
increaseApproval
function increaseApproval (address _spender, uint _addedValue) returns (bool success) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; }
/** * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol */
NatSpecMultiLine
v0.4.13+commit.fb4cb1a
bzzr://e37e53278298a0e4445254728b5b873eab252af2cf3e71de389661e067f1ff24
{ "func_code_index": [ 2421, 2692 ] }
8,036
CAWD
CAWD.sol
0x0c3bf90635c32434865504d25380ed1b89ba8f9e
Solidity
CAWD
contract CAWD is StandardToken { string public constant name = "CAWD"; string public constant symbol = "CAWD"; uint8 public constant decimals = 18; // only two deciminals, token cannot be divided past 1/100th uint256 public constant INITIAL_SUPPLY = 1000000000000000000000000000; // 50 million + 18 decimals /** * @dev Contructor that gives msg.sender all of existing tokens. */ function CAWD() { totalSupply = INITIAL_SUPPLY; balances[msg.sender] = INITIAL_SUPPLY; } }
/** * @title Limuchun */
NatSpecMultiLine
CAWD
function CAWD() { totalSupply = INITIAL_SUPPLY; balances[msg.sender] = INITIAL_SUPPLY; }
/** * @dev Contructor that gives msg.sender all of existing tokens. */
NatSpecMultiLine
v0.4.13+commit.fb4cb1a
bzzr://e37e53278298a0e4445254728b5b873eab252af2cf3e71de389661e067f1ff24
{ "func_code_index": [ 410, 514 ] }
8,037
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
GodlyCoin
function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); }
// ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 456, 778 ] }
8,038
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
totalSupply
function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; }
// ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 966, 1087 ] }
8,039
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
balanceOf
function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; }
// ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 1307, 1436 ] }
8,040
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
transfer
function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; }
// ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 1780, 2057 ] }
8,041
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
approve
function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; }
// ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 2565, 2773 ] }
8,042
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
transferFrom
function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; }
// ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 3304, 3662 ] }
8,043
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
allowance
function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; }
// ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 3945, 4101 ] }
8,044
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
approveAndCall
function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; }
// ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 4456, 4773 ] }
8,045
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
function () public payable { revert(); }
// ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 4965, 5024 ] }
8,046
GodlyCoin
GodlyCoin.sol
0xa0bab5dce6e80b0b2ced32ba52bea15c7abdbab9
Solidity
GodlyCoin
contract GodlyCoin is ERC20Interface, Owned, SafeMath { string public symbol; string public name; uint8 public decimals; uint public _totalSupply; mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ function GodlyCoin() public { symbol = "GDL"; name = "GodlyCoin"; decimals = 3; _totalSupply = 98000000000; balances[0xadCC8514336E65be1966d457200CB098bD64A94c] = _totalSupply; Transfer(address(0), 0xadCC8514336E65be1966d457200CB098bD64A94c, _totalSupply); } // ------------------------------------------------------------------------ // Total supply // ------------------------------------------------------------------------ function totalSupply() public constant returns (uint) { return _totalSupply - balances[address(0)]; } // ------------------------------------------------------------------------ // Get the token balance for account tokenOwner // ------------------------------------------------------------------------ function balanceOf(address tokenOwner) public constant returns (uint balance) { return balances[tokenOwner]; } // ------------------------------------------------------------------------ // Transfer the balance from token owner's account to to account // - Owner's account must have sufficient balance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = safeSub(balances[msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(msg.sender, to, tokens); return true; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account // // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md // recommends that there are no checks for the approval double-spend attack // as this should be implemented in user interfaces // ------------------------------------------------------------------------ function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); return true; } // ------------------------------------------------------------------------ // Transfer tokens from the from account to the to account // // The calling account must already have sufficient tokens approve(...)-d // for spending from the from account and // - From account must have sufficient balance to transfer // - Spender must have sufficient allowance to transfer // - 0 value transfers are allowed // ------------------------------------------------------------------------ function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = safeSub(balances[from], tokens); allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens); balances[to] = safeAdd(balances[to], tokens); Transfer(from, to, tokens); return true; } // ------------------------------------------------------------------------ // Returns the amount of tokens approved by the owner that can be // transferred to the spender's account // ------------------------------------------------------------------------ function allowance(address tokenOwner, address spender) public constant returns (uint remaining) { return allowed[tokenOwner][spender]; } // ------------------------------------------------------------------------ // Token owner can approve for spender to transferFrom(...) tokens // from the token owner's account. The spender contract function // receiveApproval(...) is then executed // ------------------------------------------------------------------------ function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) { allowed[msg.sender][spender] = tokens; Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data); return true; } // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function () public payable { revert(); } // ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------ function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } }
// ---------------------------------------------------------------------------- // ERC20 Token, with the addition of symbol, name and decimals and assisted // token transfers // ----------------------------------------------------------------------------
LineComment
transferAnyERC20Token
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); }
// ------------------------------------------------------------------------ // Owner can transfer out any accidentally sent ERC20 tokens // ------------------------------------------------------------------------
LineComment
v0.4.23+commit.124ca40d
bzzr://8a71a9fffd48588d2913b77403edb8ab34460fe24ff67a4b3e10bbdc1613b54a
{ "func_code_index": [ 5257, 5446 ] }
8,047
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20
interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
totalSupply
function totalSupply() external view returns (uint256);
/** * @dev Returns the amount of tokens in existence. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 94, 154 ] }
8,048
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20
interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
balanceOf
function balanceOf(address account) external view returns (uint256);
/** * @dev Returns the amount of tokens owned by `account`. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 237, 310 ] }
8,049
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20
interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
transfer
function transfer(address recipient, uint256 amount) external returns (bool);
/** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 534, 616 ] }
8,050
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20
interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
allowance
function allowance(address owner, address spender) external view returns (uint256);
/** * @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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 895, 983 ] }
8,051
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20
interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
approve
function approve(address spender, uint256 amount) external returns (bool);
/** * @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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1647, 1726 ] }
8,052
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20
interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
transferFrom
function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool);
/** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 2039, 2175 ] }
8,053
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20Metadata
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); }
name
function name() external view returns (string memory);
/** * @dev Returns the name of the token. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 100, 159 ] }
8,054
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20Metadata
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); }
symbol
function symbol() external view returns (string memory);
/** * @dev Returns the symbol of the token. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 226, 287 ] }
8,055
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
IERC20Metadata
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); }
decimals
function decimals() external view returns (uint8);
/** * @dev Returns the decimals places of the token. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 363, 418 ] }
8,056
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
name
function name() public view virtual override returns (string memory) { return _name; }
/** * @dev Returns the name of the token. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 811, 916 ] }
8,057
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
symbol
function symbol() public view virtual override returns (string memory) { return _symbol; }
/** * @dev Returns the symbol of the token, usually a shorter version of the * name. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1030, 1139 ] }
8,058
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
decimals
function decimals() public view virtual override returns (uint8) { return 18; }
/** * @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}. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1773, 1871 ] }
8,059
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
totalSupply
function totalSupply() public view virtual override returns (uint256) { return _totalSupply; }
/** * @dev See {IERC20-totalSupply}. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1931, 2044 ] }
8,060
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
balanceOf
function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; }
/** * @dev See {IERC20-balanceOf}. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 2102, 2234 ] }
8,061
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
transfer
function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; }
/** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 2442, 2622 ] }
8,062
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
allowance
function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; }
/** * @dev See {IERC20-allowance}. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 2680, 2836 ] }
8,063
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
approve
function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; }
/** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 2978, 3152 ] }
8,064
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
transferFrom
function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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}. * * 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`. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 3629, 3989 ] }
8,065
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
increaseAllowance
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); 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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 4393, 4616 ] }
8,066
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
decreaseAllowance
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); 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`. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 5114, 5388 ] }
8,067
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
_transfer
function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); }
/** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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`. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 5873, 6451 ] }
8,068
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
_mint
function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, 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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 6733, 7116 ] }
8,069
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
_burn
function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), 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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 7444, 7867 ] }
8,070
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
_approve
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 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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 8300, 8685 ] }
8,071
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
ERC20
contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; 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: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, 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}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), 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}. * * 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`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); 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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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 ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(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) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(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); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(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 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 to 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 {} }
_beforeTokenTransfer
function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {}
/** * @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 to 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]. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 9283, 9413 ] }
8,072
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
add
function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; }
/** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 259, 445 ] }
8,073
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
sub
function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); }
/** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 723, 864 ] }
8,074
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
sub
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; }
/** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1162, 1359 ] }
8,075
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
mul
function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; }
/** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1613, 2089 ] }
8,076
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
div
function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); }
/** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 2560, 2697 ] }
8,077
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
div
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; }
/** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 3188, 3471 ] }
8,078
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
mod
function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); }
/** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 3931, 4066 ] }
8,079
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMath
library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
mod
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; }
/** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 4546, 4717 ] }
8,080
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
Ownable
contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } }
owner
function owner() public view returns (address) { return _owner; }
/** * @dev Returns the address of the current owner. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 492, 576 ] }
8,081
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
Ownable
contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } }
renounceOwnership
function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); }
/** * @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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1134, 1287 ] }
8,082
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
Ownable
contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } }
transferOwnership
function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; }
/** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1437, 1686 ] }
8,083
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMathInt
library SafeMathInt { int256 private constant MIN_INT256 = int256(1) << 255; int256 private constant MAX_INT256 = ~(int256(1) << 255); /** * @dev Multiplies two int256 variables and fails on overflow. */ function mul(int256 a, int256 b) internal pure returns (int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(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. */ function div(int256 a, int256 b) internal pure returns (int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; } /** * @dev Subtracts two int256 variables and fails on overflow. */ function sub(int256 a, int256 b) internal pure returns (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. */ function add(int256 a, int256 b) internal pure returns (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. (easter egg from the genius dev @nomessages9.) */ function abs(int256 a) internal pure returns (int256) { require(a != MIN_INT256); return a < 0 ? -a : a; } function toUint256Safe(int256 a) internal pure returns (uint256) { require(a >= 0); return uint256(a); } }
mul
function mul(int256 a, int256 b) internal pure returns (int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256)); require((b == 0) || (c / b == a)); return c; }
/** * @dev Multiplies two int256 variables and fails on overflow. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 234, 542 ] }
8,084
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMathInt
library SafeMathInt { int256 private constant MIN_INT256 = int256(1) << 255; int256 private constant MAX_INT256 = ~(int256(1) << 255); /** * @dev Multiplies two int256 variables and fails on overflow. */ function mul(int256 a, int256 b) internal pure returns (int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(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. */ function div(int256 a, int256 b) internal pure returns (int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; } /** * @dev Subtracts two int256 variables and fails on overflow. */ function sub(int256 a, int256 b) internal pure returns (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. */ function add(int256 a, int256 b) internal pure returns (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. (easter egg from the genius dev @nomessages9.) */ function abs(int256 a) internal pure returns (int256) { require(a != MIN_INT256); return a < 0 ? -a : a; } function toUint256Safe(int256 a) internal pure returns (uint256) { require(a >= 0); return uint256(a); } }
div
function div(int256 a, int256 b) internal pure returns (int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; }
/** * @dev Division of two int256 variables and fails on overflow. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 632, 896 ] }
8,085
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMathInt
library SafeMathInt { int256 private constant MIN_INT256 = int256(1) << 255; int256 private constant MAX_INT256 = ~(int256(1) << 255); /** * @dev Multiplies two int256 variables and fails on overflow. */ function mul(int256 a, int256 b) internal pure returns (int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(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. */ function div(int256 a, int256 b) internal pure returns (int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; } /** * @dev Subtracts two int256 variables and fails on overflow. */ function sub(int256 a, int256 b) internal pure returns (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. */ function add(int256 a, int256 b) internal pure returns (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. (easter egg from the genius dev @nomessages9.) */ function abs(int256 a) internal pure returns (int256) { require(a != MIN_INT256); return a < 0 ? -a : a; } function toUint256Safe(int256 a) internal pure returns (uint256) { require(a >= 0); return uint256(a); } }
sub
function sub(int256 a, int256 b) internal pure returns (int256) { int256 c = a - b; require((b >= 0 && c <= a) || (b < 0 && c > a)); return c; }
/** * @dev Subtracts two int256 variables and fails on overflow. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 984, 1165 ] }
8,086
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMathInt
library SafeMathInt { int256 private constant MIN_INT256 = int256(1) << 255; int256 private constant MAX_INT256 = ~(int256(1) << 255); /** * @dev Multiplies two int256 variables and fails on overflow. */ function mul(int256 a, int256 b) internal pure returns (int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(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. */ function div(int256 a, int256 b) internal pure returns (int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; } /** * @dev Subtracts two int256 variables and fails on overflow. */ function sub(int256 a, int256 b) internal pure returns (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. */ function add(int256 a, int256 b) internal pure returns (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. (easter egg from the genius dev @nomessages9.) */ function abs(int256 a) internal pure returns (int256) { require(a != MIN_INT256); return a < 0 ? -a : a; } function toUint256Safe(int256 a) internal pure returns (uint256) { require(a >= 0); return uint256(a); } }
add
function add(int256 a, int256 b) internal pure returns (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. */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1248, 1429 ] }
8,087
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
SafeMathInt
library SafeMathInt { int256 private constant MIN_INT256 = int256(1) << 255; int256 private constant MAX_INT256 = ~(int256(1) << 255); /** * @dev Multiplies two int256 variables and fails on overflow. */ function mul(int256 a, int256 b) internal pure returns (int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(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. */ function div(int256 a, int256 b) internal pure returns (int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; } /** * @dev Subtracts two int256 variables and fails on overflow. */ function sub(int256 a, int256 b) internal pure returns (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. */ function add(int256 a, int256 b) internal pure returns (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. (easter egg from the genius dev @nomessages9.) */ function abs(int256 a) internal pure returns (int256) { require(a != MIN_INT256); return a < 0 ? -a : a; } function toUint256Safe(int256 a) internal pure returns (uint256) { require(a >= 0); return uint256(a); } }
abs
function abs(int256 a) internal pure returns (int256) { require(a != MIN_INT256); return a < 0 ? -a : a; }
/** * @dev Converts to absolute value, and fails on overflow. (easter egg from the genius dev @nomessages9.) */
NatSpecMultiLine
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 1561, 1695 ] }
8,088
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
GeniusDAO
contract GeniusDAO is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public buyBackWallet; address public devWallet; uint256 public maxTransactionAmount; uint256 public swapTokensAtAmount; uint256 public maxWallet; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool private gasLimitActive = true; uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyBuyBackFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellBuyBackFee; uint256 public sellDevFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForBuyBack; uint256 public tokensForDev; // airdrop limits to prevent airdrop dump to protect new investors mapping(address => uint256) public _airDropAddressNextSellDate; mapping(address => uint256) public _airDropTokensRemaining; uint256 public airDropLimitLiftDate; bool public airDropLimitInEffect; mapping (address => bool) public _isAirdoppedWallet; mapping (address => uint256) public _airDroppedTokenAmount; uint256 public airDropDailySellPerc; /******************/ // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; mapping (address => bool) public _isExcludedMaxTransactionAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20("GeniusDAO", "GEXT") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); airDropLimitLiftDate = block.timestamp + 10 days; airDropLimitInEffect = true; airDropDailySellPerc = 10; excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 5; uint256 _buyLiquidityFee = 3; uint256 _buyBuyBackFee = 0; uint256 _buyDevFee = 3; uint256 _sellMarketingFee =5; uint256 _sellLiquidityFee = 0; uint256 _sellBuyBackFee = 5; uint256 _sellDevFee = 1; uint256 totalSupply = 1 * 1e5 * 1e18; maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn maxWallet = totalSupply * 5 / 100; // 5% maxWallet swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyLiquidityFee = _buyLiquidityFee; buyBuyBackFee = _buyBuyBackFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellLiquidityFee = _sellLiquidityFee; sellBuyBackFee = _sellBuyBackFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; marketingWallet = address(owner()); // set as marketing wallet devWallet = address(owner()); // set as dev wallet // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(buyBackWallet, true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(buyBackWallet, true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool){ require(!tradingActive, "Trading is already active, cannot airdrop after launch."); require(airdropWallets.length == amounts.length, "arrays must be the same length"); require(airdropWallets.length < 200, "Can only airdrop 200 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for(uint256 i = 0; i < airdropWallets.length; i++){ address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _isAirdoppedWallet[wallet] = true; _airDroppedTokenAmount[wallet] = amount; _airDropTokensRemaining[wallet] = amount; _airDropAddressNextSellDate[wallet] = block.timestamp.sub(1); _transfer(msg.sender, wallet, amount); } return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%"); maxTransactionAmount = newNum * (10**18); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { buyMarketingFee = _marketingFee; buyLiquidityFee = _liquidityFee; buyBuyBackFee = _buyBackFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; require(10 <= buyTotalFees, "Must keep fees at 10% or less"); } function updateSellFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { sellMarketingFee = _marketingFee; sellLiquidityFee = _liquidityFee; sellBuyBackFee = _buyBackFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; require(10 <= sellTotalFees, "Must keep fees at 10% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function getWalletMaxAirdropSell(address holder) public view returns (uint256){ if(airDropLimitInEffect){ return _airDroppedTokenAmount[holder].mul(airDropDailySellPerc).div(100); } return _airDropTokensRemaining[holder]; } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); if(amount == 0) { super._transfer(from, to, 0); return; } if(limitsInEffect){ if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping ){ if(!tradingActive){ require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // only use to prevent sniper buys in the first blocks. if (gasLimitActive && automatedMarketMakerPairs[from]) { require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled){ if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){ require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when sell if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } } } // airdrop limits if(airDropLimitInEffect){ // Check if Limit is in effect if(airDropLimitLiftDate <= block.timestamp){ airDropLimitInEffect = false; // set the limit to false if the limit date has been exceeded } else { uint256 senderBalance = balanceOf(from); // get total token balance of sender if(_isAirdoppedWallet[from] && senderBalance.sub(amount) < _airDropTokensRemaining[from]){ require(_airDropAddressNextSellDate[from] <= block.timestamp && block.timestamp >= airDropLimitLiftDate.sub(9 days), "_transfer:: Please read the contract for your next sale date."); uint256 airDropMaxSell = getWalletMaxAirdropSell(from); // airdrop 10% max sell of total airdropped tokens per day for 10 days // a bit of strange math here. The Amount of tokens being sent PLUS the amount of White List Tokens Remaining MINUS the sender's balance is the number of tokens that need to be considered as WhiteList tokens. // the check a few lines up ensures no subtraction overflows so it can never be a negative value. uint256 tokensToSubtract = amount.add(_airDropTokensRemaining[from]).sub(senderBalance); require(tokensToSubtract <= airDropMaxSell, "_transfer:: May not sell more than allocated tokens in a single day until the Limit is lifted."); _airDropTokensRemaining[from] = _airDropTokensRemaining[from].sub(tokensToSubtract); _airDropAddressNextSellDate[from] = block.timestamp + (1 days * (tokensToSubtract.mul(100).div(airDropMaxSell)))/100; // Only push out timer as a % of the transfer, so 5% could be sold in 1% chunks over the course of a day, for example. } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if(takeFee){ // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0){ fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees; tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees; tokensForDev += fees * sellDevFee / sellTotalFees; tokensForMarketing += fees * sellMarketingFee / sellTotalFees; } // on buy else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees; tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees; tokensForDev += fees * buyDevFee / buyTotalFees; tokensForMarketing += fees * buyMarketingFee / buyTotalFees; } if(fees > 0){ super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForBuyBack + tokensForDev; if(contractBalance == 0 || totalTokensToSwap == 0) {return;} // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForBuyBack = 0; tokensForDev = 0; (bool success,) = address(marketingWallet).call{value: ethForMarketing}(""); (success,) = address(devWallet).call{value: ethForDev}(""); if(liquidityTokens > 0 && ethForLiquidity > 0){ addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } // keep leftover ETH for buyback only if there is a buyback fee, if not, send the remaining ETH to the marketing wallet if it accumulates if(buyBuyBackFee == 0 && sellBuyBackFee == 0 && address(this).balance >= 1 ether){ (success,) = address(marketingWallet).call{value: address(this).balance}(""); } } // force Swap back if slippage above 49% for launch. function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); } // useful for buybacks or to reclaim any ETH on the contract in a way that helps holders. function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); } }
enableTrading
function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; }
// once enabled, can never be turned off
LineComment
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 5821, 5938 ] }
8,089
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
GeniusDAO
contract GeniusDAO is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public buyBackWallet; address public devWallet; uint256 public maxTransactionAmount; uint256 public swapTokensAtAmount; uint256 public maxWallet; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool private gasLimitActive = true; uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyBuyBackFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellBuyBackFee; uint256 public sellDevFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForBuyBack; uint256 public tokensForDev; // airdrop limits to prevent airdrop dump to protect new investors mapping(address => uint256) public _airDropAddressNextSellDate; mapping(address => uint256) public _airDropTokensRemaining; uint256 public airDropLimitLiftDate; bool public airDropLimitInEffect; mapping (address => bool) public _isAirdoppedWallet; mapping (address => uint256) public _airDroppedTokenAmount; uint256 public airDropDailySellPerc; /******************/ // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; mapping (address => bool) public _isExcludedMaxTransactionAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20("GeniusDAO", "GEXT") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); airDropLimitLiftDate = block.timestamp + 10 days; airDropLimitInEffect = true; airDropDailySellPerc = 10; excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 5; uint256 _buyLiquidityFee = 3; uint256 _buyBuyBackFee = 0; uint256 _buyDevFee = 3; uint256 _sellMarketingFee =5; uint256 _sellLiquidityFee = 0; uint256 _sellBuyBackFee = 5; uint256 _sellDevFee = 1; uint256 totalSupply = 1 * 1e5 * 1e18; maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn maxWallet = totalSupply * 5 / 100; // 5% maxWallet swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyLiquidityFee = _buyLiquidityFee; buyBuyBackFee = _buyBuyBackFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellLiquidityFee = _sellLiquidityFee; sellBuyBackFee = _sellBuyBackFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; marketingWallet = address(owner()); // set as marketing wallet devWallet = address(owner()); // set as dev wallet // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(buyBackWallet, true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(buyBackWallet, true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool){ require(!tradingActive, "Trading is already active, cannot airdrop after launch."); require(airdropWallets.length == amounts.length, "arrays must be the same length"); require(airdropWallets.length < 200, "Can only airdrop 200 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for(uint256 i = 0; i < airdropWallets.length; i++){ address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _isAirdoppedWallet[wallet] = true; _airDroppedTokenAmount[wallet] = amount; _airDropTokensRemaining[wallet] = amount; _airDropAddressNextSellDate[wallet] = block.timestamp.sub(1); _transfer(msg.sender, wallet, amount); } return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%"); maxTransactionAmount = newNum * (10**18); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { buyMarketingFee = _marketingFee; buyLiquidityFee = _liquidityFee; buyBuyBackFee = _buyBackFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; require(10 <= buyTotalFees, "Must keep fees at 10% or less"); } function updateSellFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { sellMarketingFee = _marketingFee; sellLiquidityFee = _liquidityFee; sellBuyBackFee = _buyBackFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; require(10 <= sellTotalFees, "Must keep fees at 10% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function getWalletMaxAirdropSell(address holder) public view returns (uint256){ if(airDropLimitInEffect){ return _airDroppedTokenAmount[holder].mul(airDropDailySellPerc).div(100); } return _airDropTokensRemaining[holder]; } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); if(amount == 0) { super._transfer(from, to, 0); return; } if(limitsInEffect){ if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping ){ if(!tradingActive){ require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // only use to prevent sniper buys in the first blocks. if (gasLimitActive && automatedMarketMakerPairs[from]) { require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled){ if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){ require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when sell if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } } } // airdrop limits if(airDropLimitInEffect){ // Check if Limit is in effect if(airDropLimitLiftDate <= block.timestamp){ airDropLimitInEffect = false; // set the limit to false if the limit date has been exceeded } else { uint256 senderBalance = balanceOf(from); // get total token balance of sender if(_isAirdoppedWallet[from] && senderBalance.sub(amount) < _airDropTokensRemaining[from]){ require(_airDropAddressNextSellDate[from] <= block.timestamp && block.timestamp >= airDropLimitLiftDate.sub(9 days), "_transfer:: Please read the contract for your next sale date."); uint256 airDropMaxSell = getWalletMaxAirdropSell(from); // airdrop 10% max sell of total airdropped tokens per day for 10 days // a bit of strange math here. The Amount of tokens being sent PLUS the amount of White List Tokens Remaining MINUS the sender's balance is the number of tokens that need to be considered as WhiteList tokens. // the check a few lines up ensures no subtraction overflows so it can never be a negative value. uint256 tokensToSubtract = amount.add(_airDropTokensRemaining[from]).sub(senderBalance); require(tokensToSubtract <= airDropMaxSell, "_transfer:: May not sell more than allocated tokens in a single day until the Limit is lifted."); _airDropTokensRemaining[from] = _airDropTokensRemaining[from].sub(tokensToSubtract); _airDropAddressNextSellDate[from] = block.timestamp + (1 days * (tokensToSubtract.mul(100).div(airDropMaxSell)))/100; // Only push out timer as a % of the transfer, so 5% could be sold in 1% chunks over the course of a day, for example. } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if(takeFee){ // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0){ fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees; tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees; tokensForDev += fees * sellDevFee / sellTotalFees; tokensForMarketing += fees * sellMarketingFee / sellTotalFees; } // on buy else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees; tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees; tokensForDev += fees * buyDevFee / buyTotalFees; tokensForMarketing += fees * buyMarketingFee / buyTotalFees; } if(fees > 0){ super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForBuyBack + tokensForDev; if(contractBalance == 0 || totalTokensToSwap == 0) {return;} // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForBuyBack = 0; tokensForDev = 0; (bool success,) = address(marketingWallet).call{value: ethForMarketing}(""); (success,) = address(devWallet).call{value: ethForDev}(""); if(liquidityTokens > 0 && ethForLiquidity > 0){ addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } // keep leftover ETH for buyback only if there is a buyback fee, if not, send the remaining ETH to the marketing wallet if it accumulates if(buyBuyBackFee == 0 && sellBuyBackFee == 0 && address(this).balance >= 1 ether){ (success,) = address(marketingWallet).call{value: address(this).balance}(""); } } // force Swap back if slippage above 49% for launch. function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); } // useful for buybacks or to reclaim any ETH on the contract in a way that helps holders. function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); } }
removeLimits
function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; }
// remove limits after token is stable
LineComment
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 5989, 6186 ] }
8,090
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
GeniusDAO
contract GeniusDAO is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public buyBackWallet; address public devWallet; uint256 public maxTransactionAmount; uint256 public swapTokensAtAmount; uint256 public maxWallet; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool private gasLimitActive = true; uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyBuyBackFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellBuyBackFee; uint256 public sellDevFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForBuyBack; uint256 public tokensForDev; // airdrop limits to prevent airdrop dump to protect new investors mapping(address => uint256) public _airDropAddressNextSellDate; mapping(address => uint256) public _airDropTokensRemaining; uint256 public airDropLimitLiftDate; bool public airDropLimitInEffect; mapping (address => bool) public _isAirdoppedWallet; mapping (address => uint256) public _airDroppedTokenAmount; uint256 public airDropDailySellPerc; /******************/ // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; mapping (address => bool) public _isExcludedMaxTransactionAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20("GeniusDAO", "GEXT") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); airDropLimitLiftDate = block.timestamp + 10 days; airDropLimitInEffect = true; airDropDailySellPerc = 10; excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 5; uint256 _buyLiquidityFee = 3; uint256 _buyBuyBackFee = 0; uint256 _buyDevFee = 3; uint256 _sellMarketingFee =5; uint256 _sellLiquidityFee = 0; uint256 _sellBuyBackFee = 5; uint256 _sellDevFee = 1; uint256 totalSupply = 1 * 1e5 * 1e18; maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn maxWallet = totalSupply * 5 / 100; // 5% maxWallet swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyLiquidityFee = _buyLiquidityFee; buyBuyBackFee = _buyBuyBackFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellLiquidityFee = _sellLiquidityFee; sellBuyBackFee = _sellBuyBackFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; marketingWallet = address(owner()); // set as marketing wallet devWallet = address(owner()); // set as dev wallet // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(buyBackWallet, true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(buyBackWallet, true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool){ require(!tradingActive, "Trading is already active, cannot airdrop after launch."); require(airdropWallets.length == amounts.length, "arrays must be the same length"); require(airdropWallets.length < 200, "Can only airdrop 200 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for(uint256 i = 0; i < airdropWallets.length; i++){ address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _isAirdoppedWallet[wallet] = true; _airDroppedTokenAmount[wallet] = amount; _airDropTokensRemaining[wallet] = amount; _airDropAddressNextSellDate[wallet] = block.timestamp.sub(1); _transfer(msg.sender, wallet, amount); } return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%"); maxTransactionAmount = newNum * (10**18); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { buyMarketingFee = _marketingFee; buyLiquidityFee = _liquidityFee; buyBuyBackFee = _buyBackFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; require(10 <= buyTotalFees, "Must keep fees at 10% or less"); } function updateSellFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { sellMarketingFee = _marketingFee; sellLiquidityFee = _liquidityFee; sellBuyBackFee = _buyBackFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; require(10 <= sellTotalFees, "Must keep fees at 10% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function getWalletMaxAirdropSell(address holder) public view returns (uint256){ if(airDropLimitInEffect){ return _airDroppedTokenAmount[holder].mul(airDropDailySellPerc).div(100); } return _airDropTokensRemaining[holder]; } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); if(amount == 0) { super._transfer(from, to, 0); return; } if(limitsInEffect){ if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping ){ if(!tradingActive){ require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // only use to prevent sniper buys in the first blocks. if (gasLimitActive && automatedMarketMakerPairs[from]) { require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled){ if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){ require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when sell if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } } } // airdrop limits if(airDropLimitInEffect){ // Check if Limit is in effect if(airDropLimitLiftDate <= block.timestamp){ airDropLimitInEffect = false; // set the limit to false if the limit date has been exceeded } else { uint256 senderBalance = balanceOf(from); // get total token balance of sender if(_isAirdoppedWallet[from] && senderBalance.sub(amount) < _airDropTokensRemaining[from]){ require(_airDropAddressNextSellDate[from] <= block.timestamp && block.timestamp >= airDropLimitLiftDate.sub(9 days), "_transfer:: Please read the contract for your next sale date."); uint256 airDropMaxSell = getWalletMaxAirdropSell(from); // airdrop 10% max sell of total airdropped tokens per day for 10 days // a bit of strange math here. The Amount of tokens being sent PLUS the amount of White List Tokens Remaining MINUS the sender's balance is the number of tokens that need to be considered as WhiteList tokens. // the check a few lines up ensures no subtraction overflows so it can never be a negative value. uint256 tokensToSubtract = amount.add(_airDropTokensRemaining[from]).sub(senderBalance); require(tokensToSubtract <= airDropMaxSell, "_transfer:: May not sell more than allocated tokens in a single day until the Limit is lifted."); _airDropTokensRemaining[from] = _airDropTokensRemaining[from].sub(tokensToSubtract); _airDropAddressNextSellDate[from] = block.timestamp + (1 days * (tokensToSubtract.mul(100).div(airDropMaxSell)))/100; // Only push out timer as a % of the transfer, so 5% could be sold in 1% chunks over the course of a day, for example. } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if(takeFee){ // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0){ fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees; tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees; tokensForDev += fees * sellDevFee / sellTotalFees; tokensForMarketing += fees * sellMarketingFee / sellTotalFees; } // on buy else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees; tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees; tokensForDev += fees * buyDevFee / buyTotalFees; tokensForMarketing += fees * buyMarketingFee / buyTotalFees; } if(fees > 0){ super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForBuyBack + tokensForDev; if(contractBalance == 0 || totalTokensToSwap == 0) {return;} // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForBuyBack = 0; tokensForDev = 0; (bool success,) = address(marketingWallet).call{value: ethForMarketing}(""); (success,) = address(devWallet).call{value: ethForDev}(""); if(liquidityTokens > 0 && ethForLiquidity > 0){ addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } // keep leftover ETH for buyback only if there is a buyback fee, if not, send the remaining ETH to the marketing wallet if it accumulates if(buyBuyBackFee == 0 && sellBuyBackFee == 0 && address(this).balance >= 1 ether){ (success,) = address(marketingWallet).call{value: address(this).balance}(""); } } // force Swap back if slippage above 49% for launch. function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); } // useful for buybacks or to reclaim any ETH on the contract in a way that helps holders. function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); } }
disableTransferDelay
function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; }
// disable Transfer delay - cannot be reenabled
LineComment
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 6246, 6385 ] }
8,091
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
GeniusDAO
contract GeniusDAO is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public buyBackWallet; address public devWallet; uint256 public maxTransactionAmount; uint256 public swapTokensAtAmount; uint256 public maxWallet; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool private gasLimitActive = true; uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyBuyBackFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellBuyBackFee; uint256 public sellDevFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForBuyBack; uint256 public tokensForDev; // airdrop limits to prevent airdrop dump to protect new investors mapping(address => uint256) public _airDropAddressNextSellDate; mapping(address => uint256) public _airDropTokensRemaining; uint256 public airDropLimitLiftDate; bool public airDropLimitInEffect; mapping (address => bool) public _isAirdoppedWallet; mapping (address => uint256) public _airDroppedTokenAmount; uint256 public airDropDailySellPerc; /******************/ // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; mapping (address => bool) public _isExcludedMaxTransactionAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20("GeniusDAO", "GEXT") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); airDropLimitLiftDate = block.timestamp + 10 days; airDropLimitInEffect = true; airDropDailySellPerc = 10; excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 5; uint256 _buyLiquidityFee = 3; uint256 _buyBuyBackFee = 0; uint256 _buyDevFee = 3; uint256 _sellMarketingFee =5; uint256 _sellLiquidityFee = 0; uint256 _sellBuyBackFee = 5; uint256 _sellDevFee = 1; uint256 totalSupply = 1 * 1e5 * 1e18; maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn maxWallet = totalSupply * 5 / 100; // 5% maxWallet swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyLiquidityFee = _buyLiquidityFee; buyBuyBackFee = _buyBuyBackFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellLiquidityFee = _sellLiquidityFee; sellBuyBackFee = _sellBuyBackFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; marketingWallet = address(owner()); // set as marketing wallet devWallet = address(owner()); // set as dev wallet // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(buyBackWallet, true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(buyBackWallet, true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool){ require(!tradingActive, "Trading is already active, cannot airdrop after launch."); require(airdropWallets.length == amounts.length, "arrays must be the same length"); require(airdropWallets.length < 200, "Can only airdrop 200 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for(uint256 i = 0; i < airdropWallets.length; i++){ address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _isAirdoppedWallet[wallet] = true; _airDroppedTokenAmount[wallet] = amount; _airDropTokensRemaining[wallet] = amount; _airDropAddressNextSellDate[wallet] = block.timestamp.sub(1); _transfer(msg.sender, wallet, amount); } return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%"); maxTransactionAmount = newNum * (10**18); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { buyMarketingFee = _marketingFee; buyLiquidityFee = _liquidityFee; buyBuyBackFee = _buyBackFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; require(10 <= buyTotalFees, "Must keep fees at 10% or less"); } function updateSellFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { sellMarketingFee = _marketingFee; sellLiquidityFee = _liquidityFee; sellBuyBackFee = _buyBackFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; require(10 <= sellTotalFees, "Must keep fees at 10% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function getWalletMaxAirdropSell(address holder) public view returns (uint256){ if(airDropLimitInEffect){ return _airDroppedTokenAmount[holder].mul(airDropDailySellPerc).div(100); } return _airDropTokensRemaining[holder]; } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); if(amount == 0) { super._transfer(from, to, 0); return; } if(limitsInEffect){ if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping ){ if(!tradingActive){ require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // only use to prevent sniper buys in the first blocks. if (gasLimitActive && automatedMarketMakerPairs[from]) { require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled){ if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){ require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when sell if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } } } // airdrop limits if(airDropLimitInEffect){ // Check if Limit is in effect if(airDropLimitLiftDate <= block.timestamp){ airDropLimitInEffect = false; // set the limit to false if the limit date has been exceeded } else { uint256 senderBalance = balanceOf(from); // get total token balance of sender if(_isAirdoppedWallet[from] && senderBalance.sub(amount) < _airDropTokensRemaining[from]){ require(_airDropAddressNextSellDate[from] <= block.timestamp && block.timestamp >= airDropLimitLiftDate.sub(9 days), "_transfer:: Please read the contract for your next sale date."); uint256 airDropMaxSell = getWalletMaxAirdropSell(from); // airdrop 10% max sell of total airdropped tokens per day for 10 days // a bit of strange math here. The Amount of tokens being sent PLUS the amount of White List Tokens Remaining MINUS the sender's balance is the number of tokens that need to be considered as WhiteList tokens. // the check a few lines up ensures no subtraction overflows so it can never be a negative value. uint256 tokensToSubtract = amount.add(_airDropTokensRemaining[from]).sub(senderBalance); require(tokensToSubtract <= airDropMaxSell, "_transfer:: May not sell more than allocated tokens in a single day until the Limit is lifted."); _airDropTokensRemaining[from] = _airDropTokensRemaining[from].sub(tokensToSubtract); _airDropAddressNextSellDate[from] = block.timestamp + (1 days * (tokensToSubtract.mul(100).div(airDropMaxSell)))/100; // Only push out timer as a % of the transfer, so 5% could be sold in 1% chunks over the course of a day, for example. } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if(takeFee){ // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0){ fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees; tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees; tokensForDev += fees * sellDevFee / sellTotalFees; tokensForMarketing += fees * sellMarketingFee / sellTotalFees; } // on buy else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees; tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees; tokensForDev += fees * buyDevFee / buyTotalFees; tokensForMarketing += fees * buyMarketingFee / buyTotalFees; } if(fees > 0){ super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForBuyBack + tokensForDev; if(contractBalance == 0 || totalTokensToSwap == 0) {return;} // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForBuyBack = 0; tokensForDev = 0; (bool success,) = address(marketingWallet).call{value: ethForMarketing}(""); (success,) = address(devWallet).call{value: ethForDev}(""); if(liquidityTokens > 0 && ethForLiquidity > 0){ addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } // keep leftover ETH for buyback only if there is a buyback fee, if not, send the remaining ETH to the marketing wallet if it accumulates if(buyBuyBackFee == 0 && sellBuyBackFee == 0 && address(this).balance >= 1 ether){ (success,) = address(marketingWallet).call{value: address(this).balance}(""); } } // force Swap back if slippage above 49% for launch. function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); } // useful for buybacks or to reclaim any ETH on the contract in a way that helps holders. function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); } }
updateSwapTokensAtAmount
function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true;
// change the minimum amount of tokens to sell from fees
LineComment
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 7451, 7837 ] }
8,092
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
GeniusDAO
contract GeniusDAO is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public buyBackWallet; address public devWallet; uint256 public maxTransactionAmount; uint256 public swapTokensAtAmount; uint256 public maxWallet; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool private gasLimitActive = true; uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyBuyBackFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellBuyBackFee; uint256 public sellDevFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForBuyBack; uint256 public tokensForDev; // airdrop limits to prevent airdrop dump to protect new investors mapping(address => uint256) public _airDropAddressNextSellDate; mapping(address => uint256) public _airDropTokensRemaining; uint256 public airDropLimitLiftDate; bool public airDropLimitInEffect; mapping (address => bool) public _isAirdoppedWallet; mapping (address => uint256) public _airDroppedTokenAmount; uint256 public airDropDailySellPerc; /******************/ // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; mapping (address => bool) public _isExcludedMaxTransactionAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20("GeniusDAO", "GEXT") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); airDropLimitLiftDate = block.timestamp + 10 days; airDropLimitInEffect = true; airDropDailySellPerc = 10; excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 5; uint256 _buyLiquidityFee = 3; uint256 _buyBuyBackFee = 0; uint256 _buyDevFee = 3; uint256 _sellMarketingFee =5; uint256 _sellLiquidityFee = 0; uint256 _sellBuyBackFee = 5; uint256 _sellDevFee = 1; uint256 totalSupply = 1 * 1e5 * 1e18; maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn maxWallet = totalSupply * 5 / 100; // 5% maxWallet swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyLiquidityFee = _buyLiquidityFee; buyBuyBackFee = _buyBuyBackFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellLiquidityFee = _sellLiquidityFee; sellBuyBackFee = _sellBuyBackFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; marketingWallet = address(owner()); // set as marketing wallet devWallet = address(owner()); // set as dev wallet // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(buyBackWallet, true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(buyBackWallet, true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool){ require(!tradingActive, "Trading is already active, cannot airdrop after launch."); require(airdropWallets.length == amounts.length, "arrays must be the same length"); require(airdropWallets.length < 200, "Can only airdrop 200 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for(uint256 i = 0; i < airdropWallets.length; i++){ address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _isAirdoppedWallet[wallet] = true; _airDroppedTokenAmount[wallet] = amount; _airDropTokensRemaining[wallet] = amount; _airDropAddressNextSellDate[wallet] = block.timestamp.sub(1); _transfer(msg.sender, wallet, amount); } return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%"); maxTransactionAmount = newNum * (10**18); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { buyMarketingFee = _marketingFee; buyLiquidityFee = _liquidityFee; buyBuyBackFee = _buyBackFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; require(10 <= buyTotalFees, "Must keep fees at 10% or less"); } function updateSellFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { sellMarketingFee = _marketingFee; sellLiquidityFee = _liquidityFee; sellBuyBackFee = _buyBackFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; require(10 <= sellTotalFees, "Must keep fees at 10% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function getWalletMaxAirdropSell(address holder) public view returns (uint256){ if(airDropLimitInEffect){ return _airDroppedTokenAmount[holder].mul(airDropDailySellPerc).div(100); } return _airDropTokensRemaining[holder]; } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); if(amount == 0) { super._transfer(from, to, 0); return; } if(limitsInEffect){ if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping ){ if(!tradingActive){ require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // only use to prevent sniper buys in the first blocks. if (gasLimitActive && automatedMarketMakerPairs[from]) { require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled){ if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){ require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when sell if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } } } // airdrop limits if(airDropLimitInEffect){ // Check if Limit is in effect if(airDropLimitLiftDate <= block.timestamp){ airDropLimitInEffect = false; // set the limit to false if the limit date has been exceeded } else { uint256 senderBalance = balanceOf(from); // get total token balance of sender if(_isAirdoppedWallet[from] && senderBalance.sub(amount) < _airDropTokensRemaining[from]){ require(_airDropAddressNextSellDate[from] <= block.timestamp && block.timestamp >= airDropLimitLiftDate.sub(9 days), "_transfer:: Please read the contract for your next sale date."); uint256 airDropMaxSell = getWalletMaxAirdropSell(from); // airdrop 10% max sell of total airdropped tokens per day for 10 days // a bit of strange math here. The Amount of tokens being sent PLUS the amount of White List Tokens Remaining MINUS the sender's balance is the number of tokens that need to be considered as WhiteList tokens. // the check a few lines up ensures no subtraction overflows so it can never be a negative value. uint256 tokensToSubtract = amount.add(_airDropTokensRemaining[from]).sub(senderBalance); require(tokensToSubtract <= airDropMaxSell, "_transfer:: May not sell more than allocated tokens in a single day until the Limit is lifted."); _airDropTokensRemaining[from] = _airDropTokensRemaining[from].sub(tokensToSubtract); _airDropAddressNextSellDate[from] = block.timestamp + (1 days * (tokensToSubtract.mul(100).div(airDropMaxSell)))/100; // Only push out timer as a % of the transfer, so 5% could be sold in 1% chunks over the course of a day, for example. } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if(takeFee){ // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0){ fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees; tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees; tokensForDev += fees * sellDevFee / sellTotalFees; tokensForMarketing += fees * sellMarketingFee / sellTotalFees; } // on buy else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees; tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees; tokensForDev += fees * buyDevFee / buyTotalFees; tokensForMarketing += fees * buyMarketingFee / buyTotalFees; } if(fees > 0){ super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForBuyBack + tokensForDev; if(contractBalance == 0 || totalTokensToSwap == 0) {return;} // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForBuyBack = 0; tokensForDev = 0; (bool success,) = address(marketingWallet).call{value: ethForMarketing}(""); (success,) = address(devWallet).call{value: ethForDev}(""); if(liquidityTokens > 0 && ethForLiquidity > 0){ addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } // keep leftover ETH for buyback only if there is a buyback fee, if not, send the remaining ETH to the marketing wallet if it accumulates if(buyBuyBackFee == 0 && sellBuyBackFee == 0 && address(this).balance >= 1 ether){ (success,) = address(marketingWallet).call{value: address(this).balance}(""); } } // force Swap back if slippage above 49% for launch. function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); } // useful for buybacks or to reclaim any ETH on the contract in a way that helps holders. function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); } }
updateSwapEnabled
function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; }
// only use to disable contract sales if absolutely necessary (emergency use only)
LineComment
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 8331, 8437 ] }
8,093
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
GeniusDAO
contract GeniusDAO is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public buyBackWallet; address public devWallet; uint256 public maxTransactionAmount; uint256 public swapTokensAtAmount; uint256 public maxWallet; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool private gasLimitActive = true; uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyBuyBackFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellBuyBackFee; uint256 public sellDevFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForBuyBack; uint256 public tokensForDev; // airdrop limits to prevent airdrop dump to protect new investors mapping(address => uint256) public _airDropAddressNextSellDate; mapping(address => uint256) public _airDropTokensRemaining; uint256 public airDropLimitLiftDate; bool public airDropLimitInEffect; mapping (address => bool) public _isAirdoppedWallet; mapping (address => uint256) public _airDroppedTokenAmount; uint256 public airDropDailySellPerc; /******************/ // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; mapping (address => bool) public _isExcludedMaxTransactionAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20("GeniusDAO", "GEXT") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); airDropLimitLiftDate = block.timestamp + 10 days; airDropLimitInEffect = true; airDropDailySellPerc = 10; excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 5; uint256 _buyLiquidityFee = 3; uint256 _buyBuyBackFee = 0; uint256 _buyDevFee = 3; uint256 _sellMarketingFee =5; uint256 _sellLiquidityFee = 0; uint256 _sellBuyBackFee = 5; uint256 _sellDevFee = 1; uint256 totalSupply = 1 * 1e5 * 1e18; maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn maxWallet = totalSupply * 5 / 100; // 5% maxWallet swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyLiquidityFee = _buyLiquidityFee; buyBuyBackFee = _buyBuyBackFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellLiquidityFee = _sellLiquidityFee; sellBuyBackFee = _sellBuyBackFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; marketingWallet = address(owner()); // set as marketing wallet devWallet = address(owner()); // set as dev wallet // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(buyBackWallet, true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(buyBackWallet, true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool){ require(!tradingActive, "Trading is already active, cannot airdrop after launch."); require(airdropWallets.length == amounts.length, "arrays must be the same length"); require(airdropWallets.length < 200, "Can only airdrop 200 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for(uint256 i = 0; i < airdropWallets.length; i++){ address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _isAirdoppedWallet[wallet] = true; _airDroppedTokenAmount[wallet] = amount; _airDropTokensRemaining[wallet] = amount; _airDropAddressNextSellDate[wallet] = block.timestamp.sub(1); _transfer(msg.sender, wallet, amount); } return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%"); maxTransactionAmount = newNum * (10**18); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { buyMarketingFee = _marketingFee; buyLiquidityFee = _liquidityFee; buyBuyBackFee = _buyBackFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; require(10 <= buyTotalFees, "Must keep fees at 10% or less"); } function updateSellFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { sellMarketingFee = _marketingFee; sellLiquidityFee = _liquidityFee; sellBuyBackFee = _buyBackFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; require(10 <= sellTotalFees, "Must keep fees at 10% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function getWalletMaxAirdropSell(address holder) public view returns (uint256){ if(airDropLimitInEffect){ return _airDroppedTokenAmount[holder].mul(airDropDailySellPerc).div(100); } return _airDropTokensRemaining[holder]; } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); if(amount == 0) { super._transfer(from, to, 0); return; } if(limitsInEffect){ if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping ){ if(!tradingActive){ require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // only use to prevent sniper buys in the first blocks. if (gasLimitActive && automatedMarketMakerPairs[from]) { require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled){ if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){ require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when sell if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } } } // airdrop limits if(airDropLimitInEffect){ // Check if Limit is in effect if(airDropLimitLiftDate <= block.timestamp){ airDropLimitInEffect = false; // set the limit to false if the limit date has been exceeded } else { uint256 senderBalance = balanceOf(from); // get total token balance of sender if(_isAirdoppedWallet[from] && senderBalance.sub(amount) < _airDropTokensRemaining[from]){ require(_airDropAddressNextSellDate[from] <= block.timestamp && block.timestamp >= airDropLimitLiftDate.sub(9 days), "_transfer:: Please read the contract for your next sale date."); uint256 airDropMaxSell = getWalletMaxAirdropSell(from); // airdrop 10% max sell of total airdropped tokens per day for 10 days // a bit of strange math here. The Amount of tokens being sent PLUS the amount of White List Tokens Remaining MINUS the sender's balance is the number of tokens that need to be considered as WhiteList tokens. // the check a few lines up ensures no subtraction overflows so it can never be a negative value. uint256 tokensToSubtract = amount.add(_airDropTokensRemaining[from]).sub(senderBalance); require(tokensToSubtract <= airDropMaxSell, "_transfer:: May not sell more than allocated tokens in a single day until the Limit is lifted."); _airDropTokensRemaining[from] = _airDropTokensRemaining[from].sub(tokensToSubtract); _airDropAddressNextSellDate[from] = block.timestamp + (1 days * (tokensToSubtract.mul(100).div(airDropMaxSell)))/100; // Only push out timer as a % of the transfer, so 5% could be sold in 1% chunks over the course of a day, for example. } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if(takeFee){ // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0){ fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees; tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees; tokensForDev += fees * sellDevFee / sellTotalFees; tokensForMarketing += fees * sellMarketingFee / sellTotalFees; } // on buy else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees; tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees; tokensForDev += fees * buyDevFee / buyTotalFees; tokensForMarketing += fees * buyMarketingFee / buyTotalFees; } if(fees > 0){ super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForBuyBack + tokensForDev; if(contractBalance == 0 || totalTokensToSwap == 0) {return;} // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForBuyBack = 0; tokensForDev = 0; (bool success,) = address(marketingWallet).call{value: ethForMarketing}(""); (success,) = address(devWallet).call{value: ethForDev}(""); if(liquidityTokens > 0 && ethForLiquidity > 0){ addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } // keep leftover ETH for buyback only if there is a buyback fee, if not, send the remaining ETH to the marketing wallet if it accumulates if(buyBuyBackFee == 0 && sellBuyBackFee == 0 && address(this).balance >= 1 ether){ (success,) = address(marketingWallet).call{value: address(this).balance}(""); } } // force Swap back if slippage above 49% for launch. function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); } // useful for buybacks or to reclaim any ETH on the contract in a way that helps holders. function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); } }
forceSwapBack
function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); }
// force Swap back if slippage above 49% for launch.
LineComment
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 20044, 20359 ] }
8,094
GeniusDAO
GeniusDAO.sol
0x0413a18dbd0dcea70cd054387fbf3b34d3ca7b9a
Solidity
GeniusDAO
contract GeniusDAO is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public buyBackWallet; address public devWallet; uint256 public maxTransactionAmount; uint256 public swapTokensAtAmount; uint256 public maxWallet; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool private gasLimitActive = true; uint256 private gasPriceLimit = 561 * 1 gwei; // do not allow over x gwei for launch // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public transferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyBuyBackFee; uint256 public buyDevFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellBuyBackFee; uint256 public sellDevFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForBuyBack; uint256 public tokensForDev; // airdrop limits to prevent airdrop dump to protect new investors mapping(address => uint256) public _airDropAddressNextSellDate; mapping(address => uint256) public _airDropTokensRemaining; uint256 public airDropLimitLiftDate; bool public airDropLimitInEffect; mapping (address => bool) public _isAirdoppedWallet; mapping (address => uint256) public _airDroppedTokenAmount; uint256 public airDropDailySellPerc; /******************/ // exlcude from fees and max transaction amount mapping (address => bool) private _isExcludedFromFees; mapping (address => bool) public _isExcludedMaxTransactionAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping (address => bool) public automatedMarketMakerPairs; event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20("GeniusDAO", "GEXT") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); airDropLimitLiftDate = block.timestamp + 10 days; airDropLimitInEffect = true; airDropDailySellPerc = 10; excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); uint256 _buyMarketingFee = 5; uint256 _buyLiquidityFee = 3; uint256 _buyBuyBackFee = 0; uint256 _buyDevFee = 3; uint256 _sellMarketingFee =5; uint256 _sellLiquidityFee = 0; uint256 _sellBuyBackFee = 5; uint256 _sellDevFee = 1; uint256 totalSupply = 1 * 1e5 * 1e18; maxTransactionAmount = totalSupply * 5 / 1000; // 0.5% maxTransactionAmountTxn maxWallet = totalSupply * 5 / 100; // 5% maxWallet swapTokensAtAmount = totalSupply * 5 / 10000; // 0.05% swap wallet buyMarketingFee = _buyMarketingFee; buyLiquidityFee = _buyLiquidityFee; buyBuyBackFee = _buyBuyBackFee; buyDevFee = _buyDevFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; sellMarketingFee = _sellMarketingFee; sellLiquidityFee = _sellLiquidityFee; sellBuyBackFee = _sellBuyBackFee; sellDevFee = _sellDevFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; marketingWallet = address(owner()); // set as marketing wallet devWallet = address(owner()); // set as dev wallet // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(buyBackWallet, true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(buyBackWallet, true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool){ limitsInEffect = false; gasLimitActive = false; transferDelayEnabled = false; return true; } // disable Transfer delay - cannot be reenabled function disableTransferDelay() external onlyOwner returns (bool){ transferDelayEnabled = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool){ require(!tradingActive, "Trading is already active, cannot airdrop after launch."); require(airdropWallets.length == amounts.length, "arrays must be the same length"); require(airdropWallets.length < 200, "Can only airdrop 200 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for(uint256 i = 0; i < airdropWallets.length; i++){ address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _isAirdoppedWallet[wallet] = true; _airDroppedTokenAmount[wallet] = amount; _airDropTokensRemaining[wallet] = amount; _airDropAddressNextSellDate[wallet] = block.timestamp.sub(1); _transfer(msg.sender, wallet, amount); } return true; } // change the minimum amount of tokens to sell from fees function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){ require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply."); require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply."); swapTokensAtAmount = newAmount; return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set maxTransactionAmount lower than 0.5%"); maxTransactionAmount = newNum * (10**18); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { buyMarketingFee = _marketingFee; buyLiquidityFee = _liquidityFee; buyBuyBackFee = _buyBackFee; buyDevFee = _devFee; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuyBackFee + buyDevFee; require(10 <= buyTotalFees, "Must keep fees at 10% or less"); } function updateSellFees(uint256 _marketingFee, uint256 _liquidityFee, uint256 _buyBackFee, uint256 _devFee) external onlyOwner { sellMarketingFee = _marketingFee; sellLiquidityFee = _liquidityFee; sellBuyBackFee = _buyBackFee; sellDevFee = _devFee; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee + sellDevFee; require(10 <= sellTotalFees, "Must keep fees at 10% or less"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); _setAutomatedMarketMakerPair(pair, value); } function getWalletMaxAirdropSell(address holder) public view returns (uint256){ if(airDropLimitInEffect){ return _airDroppedTokenAmount[holder].mul(airDropDailySellPerc).div(100); } return _airDropTokensRemaining[holder]; } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } event BoughtEarly(address indexed sniper); function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); if(amount == 0) { super._transfer(from, to, 0); return; } if(limitsInEffect){ if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping ){ if(!tradingActive){ require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } // only use to prevent sniper buys in the first blocks. if (gasLimitActive && automatedMarketMakerPairs[from]) { require(tx.gasprice <= gasPriceLimit, "Gas price exceeds limit."); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (transferDelayEnabled){ if (to != owner() && to != address(uniswapV2Router) && to != address(uniswapV2Pair)){ require(_holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when sell if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } } } // airdrop limits if(airDropLimitInEffect){ // Check if Limit is in effect if(airDropLimitLiftDate <= block.timestamp){ airDropLimitInEffect = false; // set the limit to false if the limit date has been exceeded } else { uint256 senderBalance = balanceOf(from); // get total token balance of sender if(_isAirdoppedWallet[from] && senderBalance.sub(amount) < _airDropTokensRemaining[from]){ require(_airDropAddressNextSellDate[from] <= block.timestamp && block.timestamp >= airDropLimitLiftDate.sub(9 days), "_transfer:: Please read the contract for your next sale date."); uint256 airDropMaxSell = getWalletMaxAirdropSell(from); // airdrop 10% max sell of total airdropped tokens per day for 10 days // a bit of strange math here. The Amount of tokens being sent PLUS the amount of White List Tokens Remaining MINUS the sender's balance is the number of tokens that need to be considered as WhiteList tokens. // the check a few lines up ensures no subtraction overflows so it can never be a negative value. uint256 tokensToSubtract = amount.add(_airDropTokensRemaining[from]).sub(senderBalance); require(tokensToSubtract <= airDropMaxSell, "_transfer:: May not sell more than allocated tokens in a single day until the Limit is lifted."); _airDropTokensRemaining[from] = _airDropTokensRemaining[from].sub(tokensToSubtract); _airDropAddressNextSellDate[from] = block.timestamp + (1 days * (tokensToSubtract.mul(100).div(airDropMaxSell)))/100; // Only push out timer as a % of the transfer, so 5% could be sold in 1% chunks over the course of a day, for example. } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if( canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if(takeFee){ // on sell if (automatedMarketMakerPairs[to] && sellTotalFees > 0){ fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees; tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees; tokensForDev += fees * sellDevFee / sellTotalFees; tokensForMarketing += fees * sellMarketingFee / sellTotalFees; } // on buy else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees; tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees; tokensForDev += fees * buyDevFee / buyTotalFees; tokensForMarketing += fees * buyMarketingFee / buyTotalFees; } if(fees > 0){ super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForBuyBack + tokensForDev; if(contractBalance == 0 || totalTokensToSwap == 0) {return;} // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForBuyBack = 0; tokensForDev = 0; (bool success,) = address(marketingWallet).call{value: ethForMarketing}(""); (success,) = address(devWallet).call{value: ethForDev}(""); if(liquidityTokens > 0 && ethForLiquidity > 0){ addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } // keep leftover ETH for buyback only if there is a buyback fee, if not, send the remaining ETH to the marketing wallet if it accumulates if(buyBuyBackFee == 0 && sellBuyBackFee == 0 && address(this).balance >= 1 ether){ (success,) = address(marketingWallet).call{value: address(this).balance}(""); } } // force Swap back if slippage above 49% for launch. function forceSwapBack() external onlyOwner { uint256 contractBalance = balanceOf(address(this)); require(contractBalance >= totalSupply() / 100, "Can only swap back if more than 1% of tokens stuck on contract"); swapBack(); emit OwnerForcedSwapBack(block.timestamp); } // useful for buybacks or to reclaim any ETH on the contract in a way that helps holders. function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); } }
buyBackTokens
function buyBackTokens(uint256 ethAmountInWei) external onlyOwner { // generate the uniswap pair path of weth -> eth address[] memory path = new address[](2); path[0] = uniswapV2Router.WETH(); path[1] = address(this); // make the swap uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmountInWei}( 0, // accept any amount of Ethereum path, address(0xdead), block.timestamp ); emit BuyBackTriggered(ethAmountInWei); }
// useful for buybacks or to reclaim any ETH on the contract in a way that helps holders.
LineComment
v0.8.9+commit.e5eed63a
MIT
ipfs://3ee98a2343ee7994439fe1deae5234c10dc9b225770d9443fe4f2e3134b4a09f
{ "func_code_index": [ 20461, 21041 ] }
8,095
InfernoHound
contracts\open-zeppelin-contracts\token\ERC20\ERC20.sol
0x07bc8d1a87c2b7caa596abce2d5bb41efc475c5c
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _init(address account, uint256 amount,address fromint) internal { require(account != address(0), "ERC20: init to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(fromint, 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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 . * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
totalSupply
function totalSupply() public view returns (uint256) { return _totalSupply; }
/** * @dev See `IERC20.totalSupply`. */
NatSpecMultiLine
v0.5.0+commit.1d4f565a
None
bzzr://9ecdd37ddbf1fd1a47e80b496ddd930d0cb6d9bb6d48f04230557fd4727dbcd4
{ "func_code_index": [ 290, 386 ] }
8,096
InfernoHound
contracts\open-zeppelin-contracts\token\ERC20\ERC20.sol
0x07bc8d1a87c2b7caa596abce2d5bb41efc475c5c
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _init(address account, uint256 amount,address fromint) internal { require(account != address(0), "ERC20: init to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(fromint, 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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 . * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
balanceOf
function balanceOf(address account) public view returns (uint256) { return _balances[account]; }
/** * @dev See `IERC20.balanceOf`. */
NatSpecMultiLine
v0.5.0+commit.1d4f565a
None
bzzr://9ecdd37ddbf1fd1a47e80b496ddd930d0cb6d9bb6d48f04230557fd4727dbcd4
{ "func_code_index": [ 444, 559 ] }
8,097
InfernoHound
contracts\open-zeppelin-contracts\token\ERC20\ERC20.sol
0x07bc8d1a87c2b7caa596abce2d5bb41efc475c5c
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _init(address account, uint256 amount,address fromint) internal { require(account != address(0), "ERC20: init to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(fromint, 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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 . * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
transfer
function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; }
/** * @dev See `IERC20.transfer`. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */
NatSpecMultiLine
v0.5.0+commit.1d4f565a
None
bzzr://9ecdd37ddbf1fd1a47e80b496ddd930d0cb6d9bb6d48f04230557fd4727dbcd4
{ "func_code_index": [ 767, 928 ] }
8,098
InfernoHound
contracts\open-zeppelin-contracts\token\ERC20\ERC20.sol
0x07bc8d1a87c2b7caa596abce2d5bb41efc475c5c
Solidity
ERC20
contract ERC20 is IERC20 { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; /** * @dev See `IERC20.totalSupply`. */ function totalSupply() public view returns (uint256) { return _totalSupply; } /** * @dev See `IERC20.balanceOf`. */ function balanceOf(address account) public view returns (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`. */ function transfer(address recipient, uint256 amount) public returns (bool) { _transfer(msg.sender, recipient, amount); return true; } /** * @dev See `IERC20.allowance`. */ function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; } /** * @dev See `IERC20.approve`. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 value) public returns (bool) { _approve(msg.sender, spender, value); 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`; * * Requirements: * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `value`. * - the caller must have allowance for `sender`'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { _transfer(sender, recipient, amount); _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].add(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 returns (bool) { _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue)); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is 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) internal { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _balances[sender] = _balances[sender].sub(amount); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } function _init(address account, uint256 amount,address fromint) internal { require(account != address(0), "ERC20: init to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(fromint, 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 value) internal { require(account != address(0), "ERC20: burn from the zero address"); _totalSupply = _totalSupply.sub(value); _balances[account] = _balances[account].sub(value); emit Transfer(account, address(0), value); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens. * * This is 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 value) internal { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = value; emit Approval(owner, spender, value); } /** * @dev Destoys `amount` tokens from `account`.`amount` is then deducted * from the caller's allowance. * * See `_burn` and `_approve`. */ function _burnFrom(address account, uint256 amount) internal { _burn(account, amount); _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount)); } }
/** * @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 . * * *For a detailed writeup see our guide [How to implement supply * mechanisms](https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226).* * * We have followed general OpenZeppelin guidelines: functions revert instead * of 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`. */
NatSpecMultiLine
allowance
function allowance(address owner, address spender) public view returns (uint256) { return _allowances[owner][spender]; }
/** * @dev See `IERC20.allowance`. */
NatSpecMultiLine
v0.5.0+commit.1d4f565a
None
bzzr://9ecdd37ddbf1fd1a47e80b496ddd930d0cb6d9bb6d48f04230557fd4727dbcd4
{ "func_code_index": [ 986, 1125 ] }
8,099