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MockERC20

Git Source

Inherits: IERC20

This is a mock contract of the ERC20 standard for testing purposes only, it SHOULD NOT be used in production.

Forked from: https://github.com/transmissions11/solmate/blob/0384dbaaa4fcb5715738a9254a7c0a4cb62cf458/src/tokens/ERC20.sol

State Variables​

_name​

string internal _name;

_symbol​

string internal _symbol;

_decimals​

uint8 internal _decimals;

_totalSupply​

uint256 internal _totalSupply;

_balanceOf​

mapping(address => uint256) internal _balanceOf;

_allowance​

mapping(address => mapping(address => uint256)) internal _allowance;

INITIAL_CHAIN_ID​

uint256 internal INITIAL_CHAIN_ID;

INITIAL_DOMAIN_SEPARATOR​

bytes32 internal INITIAL_DOMAIN_SEPARATOR;

nonces​

mapping(address => uint256) public nonces;

initialized​

A bool to track whether the contract has been initialized.

bool private initialized;

Functions​

name​

function name() external view override returns (string memory);

symbol​

function symbol() external view override returns (string memory);

decimals​

function decimals() external view override returns (uint8);

totalSupply​

function totalSupply() external view override returns (uint256);

balanceOf​

function balanceOf(address owner) external view override returns (uint256);

allowance​

function allowance(address owner, address spender) external view override returns (uint256);

initialize​

To hide constructor warnings across solc versions due to different constructor visibility requirements and syntaxes, we add an initialization function that can be called only once.

function initialize(string memory name_, string memory symbol_, uint8 decimals_) public;

approve​

function approve(address spender, uint256 amount) public virtual override returns (bool);

transfer​

function transfer(address to, uint256 amount) public virtual override returns (bool);

transferFrom​

function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool);

permit​

function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s)
    public
    virtual;

DOMAIN_SEPARATOR​

function DOMAIN_SEPARATOR() public view virtual returns (bytes32);

computeDomainSeparator​

function computeDomainSeparator() internal view virtual returns (bytes32);

_mint​

function _mint(address to, uint256 amount) internal virtual;

_burn​

function _burn(address from, uint256 amount) internal virtual;

_add​

function _add(uint256 a, uint256 b) internal pure returns (uint256);

_sub​

function _sub(uint256 a, uint256 b) internal pure returns (uint256);

_viewChainId​

function _viewChainId() private view returns (uint256 chainId);

_pureChainId​

function _pureChainId() private pure returns (uint256 chainId);