MintPass

Inherits: EIP712

Author: fx(hash)

Extension for claiming tokens through mint passes

State Variables

reserveNonce

Mapping of token address to reserve ID to reserve nonce

mapping(address => mapping(uint256 => uint256)) public reserveNonce;

signingAuthorities

Mapping of token address to reserve ID to address of mint pass authority

mapping(address => mapping(uint256 => address)) public signingAuthorities;

Functions

constructor

Initializes EIP-712

constructor() EIP712("MINT_PASS", "1");

generateTypedDataHash

Generates the typed data hash for a mint pass claim

function generateTypedDataHash(
    address _token,
    uint256 _reserveId,
    uint256 _reserveNonce,
    uint256 _index,
    address _claimer
) public view returns (bytes32);

Parameters

Name	Type	Description
`_token`	`address`	address of token for the reserve
`_reserveId`	`uint256`	Id of the reserve to mint the token from
`_reserveNonce`	`uint256`
`_index`	`uint256`	Index of the mint pass
`_claimer`	`address`	Address of mint pass claimer

Returns

Name	Type	Description
`<none>`	`bytes32`	Digest of typed data hash claimer

_claimMintPass

Validates a mint pass claim

function _claimMintPass(
    address _token,
    uint256 _reserveId,
    uint256 _index,
    address _claimer,
    bytes calldata _signature,
    LibBitmap.Bitmap storage _bitmap
) internal;

Parameters

Name	Type	Description
`_token`	`address`	Address of the token contract
`_reserveId`	`uint256`	ID of the reserve
`_index`	`uint256`	Index of the mint pass
`_claimer`	`address`	Account associated with the mint pass
`_signature`	`bytes`	Signature of the mint pass claimer
`_bitmap`	`LibBitmap.Bitmap`	Bitmap used for checking if index is already claimed

Events

PassClaimed

Event emitted when mint pass is claimed

event PassClaimed(address indexed _token, uint256 indexed _reserveId, address indexed _claimer, uint256 _index);

Parameters

Name	Type	Description
`_token`	`address`	Address of the token
`_reserveId`	`uint256`	ID of the reserve
`_claimer`	`address`	Address of the mint pass claimer
`_index`	`uint256`	Index of purchase info inside the BitMap

Errors

InvalidSignature

Error thrown when the signature of mint pass claimer is invalid

error InvalidSignature();

PassAlreadyClaimed

Error thrown when a mint pass has already been claimed

error PassAlreadyClaimed();