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IERC20Full Interface

The IERC20Full interface aggregates standard ERC20 functionality with additional extensions for metadata and permit operations. It combines OpenZeppelin's IERC20, IERC20Metadata, IERC20Errors, and IERC20Permit interfaces.

Interface Inheritance​

interface IERC20Full is IERC20, IERC20Metadata, IERC20Errors, IERC20Permit

Standard ERC20 Functions​

Inherits all standard ERC20 functions from OpenZeppelin's implementation:

function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);

Metadata Functions​

Includes token metadata functions:

function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);

Permit Functions​

Implements EIP-2612 permit functionality:

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

function nonces(address owner) external view returns (uint256);
function DOMAIN_SEPARATOR() external view returns (bytes32);

Custom Errors​

ERC2612ExpiredSignature​

error ERC2612ExpiredSignature(uint256 deadline);

Thrown when attempting to use a permit after its deadline.

Parameters​

NameTypeDescription
deadlineuint256The timestamp when the permit expired

ERC2612InvalidSigner​

error ERC2612InvalidSigner(address signer, address owner);

Thrown when the recovered signer doesn't match the token owner.

Parameters​

NameTypeDescription
signeraddressThe address recovered from the signature
owneraddressThe expected owner address

Standard ERC20 Errors​

Inherits standard OpenZeppelin ERC20 errors:

error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
error ERC20InvalidSender(address sender);
error ERC20InvalidReceiver(address receiver);
error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);