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BatchMintFacet

Hashgraph Asset Tokenization

BatchMintFacet

Diamond facet that exposes the ERC-3643 batchMint operation, registered under RESOLVER_KEY_BATCH_MINT.

Inherits minting logic from BatchMint and satisfies the IStaticFunctionSelectors contract required by the Diamond proxy for static selector registration. Exposes one selector: batchMint. No library links are required for deployment.

Methods​

batchMint​

function batchMint(address[] _toList, uint256[] _amounts) external nonpayable

Batch mint tokens to multiple addresses.

Iterates over _toList and _amounts in two passes: first validates identity, compliance, and cap constraints for every recipient, then issues tokens to each address via ERC1594StorageWrapper.issue. Reverts if the token is paused, if the arrays differ in length, if the caller lacks the issuer or agent role, if a recipient fails identity or compliance checks, or if any single mint would exceed the maximum supply. Restricted to non-multi-partition tokens.

Parameters​

NameTypeDescription
_toListaddress[]Ordered list of recipient addresses.
_amountsuint256[]Ordered list of token amounts corresponding to each recipient.

getStaticFunctionSelectors​

function getStaticFunctionSelectors() external pure returns (bytes4[])

Gets all function selectors of a facet

Returns​

NameTypeDescription
_0bytes4[]Face functions selectors

getStaticInterfaceIds​

function getStaticInterfaceIds() external pure returns (bytes4[])

Gets all interfaces ids of a facet.

Returns​

NameTypeDescription
_0bytes4[]Face interface ids

getStaticResolverKey​

function getStaticResolverKey() external pure returns (bytes32 staticResolverKey_)

Gets the static resolver key

Returns​

NameTypeDescription
staticResolverKey_bytes32Static resolver key

initializeBatchMint​

function initializeBatchMint() external nonpayable

Initialises the batch mint capability on the token.

Callable once; subsequent calls revert with FacetAlreadyRegistered. Requires DEFAULT_ADMIN_ROLE. Called by the factory during deployment.

Events​

BatchMintInitialized​

event BatchMintInitialized()

Emitted once when the batch mint capability is initialised on a token.

Fires exclusively from initializeBatchMint after the storage write succeeds.

Issued​

event Issued(address indexed operator, address indexed to, uint256 value, bytes data)

Emitted when new tokens are issued to a holder.

Parameters​

NameTypeDescription
operator indexedaddressAccount that invoked the issuance (issuer or agent).
to indexedaddressRecipient of the newly issued tokens.
valueuint256Amount of tokens issued, denominated in base units.
databytesArbitrary payload forwarded alongside the issuance.

Errors​

AccountHasNoRole​

error AccountHasNoRole(address account, bytes32 role)

Thrown when an account does not hold a required role.

Parameters​

NameTypeDescription
accountaddressThe account that lacks the role.
rolebytes32The role that is not held.

AccountHasNoRoles​

error AccountHasNoRoles(address account, bytes32[] roles)

Thrown when an account does not hold any of the specified roles.

Parameters​

NameTypeDescription
accountaddressThe account that lacks the roles.
rolesbytes32[]The roles that are not held.

AssetNotOperational​

error AssetNotOperational(bytes32 configId, uint256 versionId)

Raised by InitializerStorageWrapper.checkOperational (and the related isConfigVersionOperational helper) when an operation is attempted on a configuration version that has not yet been marked operational.

Parameters​

NameTypeDescription
configIdbytes32Resolver-proxy configuration whose operational status was checked.
versionIduint256Configuration version whose operational status was checked.

Deactivated​

error Deactivated()

Thrown when an operation guarded by onlyActivated is attempted on a token whose deactivation flag has already been set.

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​

NameTypeDescription
facetIdbytes32Identifier of the offending facet.
lastVersionuint256Last version recorded for that facet at the time of the check.

InputAmountsArrayLengthMismatch​

error InputAmountsArrayLengthMismatch()

Thrown when the lengths of two input amount arrays do not match.

IsPaused​

error IsPaused()

Thrown when an operation that requires the token to be unpaused is attempted while the token is paused (own flag or any external pause contract).

IssuanceIsDisabled​

error IssuanceIsDisabled()

Thrown when an issuance operation is attempted after issuance has been permanently disabled.

MaxSupplyReached​

error MaxSupplyReached(uint256 maxSupply)

Thrown when a mint would cause the total supply to exceed the global maximum.

Parameters​

NameTypeDescription
maxSupplyuint256The current global maximum supply.

NotAllowedInMultiPartitionMode​

error NotAllowedInMultiPartitionMode()

Thrown when a single-partition operation is attempted on a multi-partition token.

UnrecognizedResolverProxyVersion​

error UnrecognizedResolverProxyVersion(bytes8 _resolverProxyVersion)

Thrown when the provided proxy version does not match any BLR compatible standard.

Parameters​

NameTypeDescription
_resolverProxyVersionbytes8proxy version that is not compatible with the BLR.

WalletRecovered​

error WalletRecovered()

Thrown when attempting to recover a wallet that has already been recovered.