openzeppelin-contracts/contracts/mocks/token/ERC20NoReturnMock.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import {ERC20} from "../../token/ERC20/ERC20.sol";

abstract contract ERC20NoReturnMock is ERC20 {
    function transfer(address to, uint256 amount) public override returns (bool) {
        super.transfer(to, amount);
        assembly {
            return(0, 0)
        }
    }

    function transferFrom(address from, address to, uint256 amount) public override returns (bool) {
        super.transferFrom(from, to, amount);
        assembly {
            return(0, 0)
        }
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        super.approve(spender, amount);
        assembly {
            return(0, 0)
        }
    }
}