23 lines
526 B
Solidity
23 lines
526 B
Solidity
// SPDX-License-Identifier: MIT
|
|
pragma solidity ^0.8.0;
|
|
|
|
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
|
|
|
|
contract Collateral {
|
|
IERC20 private immutable token;
|
|
mapping(address => uint256) private balances;
|
|
|
|
constructor(IERC20 _token) {
|
|
token = _token;
|
|
}
|
|
|
|
function balanceOf(address account) public view returns (uint256) {
|
|
return balances[account];
|
|
}
|
|
|
|
function deposit(uint256 amount) public {
|
|
token.transferFrom(msg.sender, address(this), amount);
|
|
balances[msg.sender] += amount;
|
|
}
|
|
}
|