EIP712
Asset Tokenization Studio Team
EIP712
Abstract implementation of IEIP712.
Delegates to ERC20PermitStorageWrapper.DOMAIN_SEPARATOR(), which computes the domain hash on every call using the token name, resolver-proxy version, chain ID, and diamond address.
Methods
DOMAIN_SEPARATOR
function DOMAIN_SEPARATOR() external view returns (bytes32 domainSeparator_)
Returns the EIP-712 domain separator for this contract.
Computed from the token name, resolver-proxy version, chain ID, and the diamond address. The value changes when any of those inputs change (e.g. after a chain fork or a proxy version upgrade).
Returns
| Name | Type | Description |
|---|---|---|
| domainSeparator_ | bytes32 | The EIP-712 domain separator hash. |
initializeEIP712
function initializeEIP712() external nonpayable
Initialises the EIP-712 capability on the token.
Callable once; subsequent calls revert with FacetAlreadyRegistered. Requires DEFAULT_ADMIN_ROLE. Called by the factory during deployment.
Events
EIP712Initialized
event EIP712Initialized()
Emitted once when the EIP-712 capability is initialised on a token.
Fires exclusively from initializeEIP712.
Errors
AccountHasNoRole
error AccountHasNoRole(address account, bytes32 role)
Thrown when an account does not hold a required role.
Parameters
| Name | Type | Description |
|---|---|---|
| account | address | The account that lacks the role. |
| role | bytes32 | The role that is not held. |
FacetAlreadyRegistered
error FacetAlreadyRegistered(bytes32 facetId, uint256 lastVersion)
Raised when an initialiser tries to register a facet that already has a non-zero last registered version (i.e. the facet is being re-initialised on a fresh install).
Parameters
| Name | Type | Description |
|---|---|---|
| facetId | bytes32 | Identifier of the offending facet. |
| lastVersion | uint256 | Last version recorded for that facet at the time of the check. |
UnrecognizedResolverProxyVersion
error UnrecognizedResolverProxyVersion(bytes8 _resolverProxyVersion)
Thrown when the provided proxy version does not match any BLR compatible standard.
Parameters
| Name | Type | Description |
|---|---|---|
| _resolverProxyVersion | bytes8 | proxy version that is not compatible with the BLR. |
WalletRecovered
error WalletRecovered()
Thrown when attempting to recover a wallet that has already been recovered.