Created
February 6, 2023 15:42
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pragma solidity ^0.4.18; | |
contract WFIL { | |
string public name = "Wrapped FIL"; | |
string public symbol = "WFIL"; | |
uint8 public decimals = 18; | |
address private admin; | |
function WFIL() public { | |
admin = msg.sender; | |
} | |
event Approval(address indexed src, address indexed guy, uint wad); | |
event Transfer(address indexed src, address indexed dst, uint wad); | |
event Deposit(address indexed dst, uint wad); | |
event Withdrawal(address indexed src, uint wad); | |
mapping (address => uint) public balanceOf; | |
mapping (address => mapping (address => uint)) public allowance; | |
function() public payable { | |
deposit(); | |
} | |
function deposit() public payable { | |
balanceOf[msg.sender] += msg.value; | |
Deposit(msg.sender, msg.value); | |
} | |
function withdraw(uint wad) public { | |
require(balanceOf[msg.sender] >= wad); | |
balanceOf[msg.sender] -= wad; | |
msg.sender.transfer(wad); | |
Withdrawal(msg.sender, wad); | |
} | |
function totalSupply() public view returns (uint) { | |
return this.balance; | |
} | |
function approve(address guy, uint wad) public returns (bool) { | |
allowance[msg.sender][guy] = wad; | |
Approval(msg.sender, guy, wad); | |
return true; | |
} | |
function transfer(address dst, uint wad) public returns (bool) { | |
return transferFrom(msg.sender, dst, wad); | |
} | |
function transferFrom(address src, address dst, uint wad) | |
public | |
returns (bool) | |
{ | |
require(balanceOf[src] >= wad); | |
if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) { | |
require(allowance[src][msg.sender] >= wad); | |
allowance[src][msg.sender] -= wad; | |
} | |
balanceOf[src] -= wad; | |
balanceOf[dst] += wad; | |
Transfer(src, dst, wad); | |
return true; | |
} | |
function mint(address _to, uint256 _amount) | |
public | |
returns ( | |
bool | |
) | |
{ | |
require(msg.sender == admin); | |
balanceOf[_to] += _amount; | |
return true; | |
} | |
} |
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