IBusinessLogicResolver

Asset Tokenization Studio Team

IBusinessLogicResolver

Registry for resolving Business Logic (facet) addresses by a bytes32 key and version.

Each business logic key has its own independent version counter — registerBusinessLogics() increments latestVersionByFacetId only for the keys included in a given call. Omitting a previously-registered key from a call leaves that key's counter untouched; it does not advance alongside the keys that were included. Callers intending a full re-registration of every active key must supply all of them in the same call (or across the batches of the same registration operation) — the registry does not enforce this on their behalf, so a partial call is a valid, if incomplete, update rather than a rejected one. VersionStatus.DEACTIVATED (see setVersionStatus) is unrelated to registration: it does not affect registerBusinessLogics() in any way and does not retire a key. It only blocks that one specific (key, version) pair from being selected into a new resolver-proxy configuration going forward; other versions of the same key remain selectable, and configurations that already reference the deactivated version are unaffected.

Methods

addSelectorsToBlacklist

function addSelectorsToBlacklist(bytes32 _configurationId, bytes4[] _selectors) external nonpayable

Adds a list of selectors to the blacklist

Blacklisted selectors are rejected when future configurations register facet selectors for the same configuration.

Parameters

Name	Type	Description
_configurationId	bytes32	the configuration key to be checked.
_selectors	bytes4[]	list of selectors to be added to the blacklist

cancelBatchConfiguration

function cancelBatchConfiguration(bytes32 _configurationId) external nonpayable

Discards an in-progress batch configuration, dropping every facet appended so far for the pending version.

Emits {DiamondBatchConfigurationCancelled}. Has no effect once the version has been finalised via a _isLastBatch = true call.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key whose pending batch should be cancelled.

checkResolverProxyConfigurationRegistered

function checkResolverProxyConfigurationRegistered(bytes32 _configurationId, uint256 _version) external nonpayable

Reverts if the (configurationId, version) pair is not a registered, finalised configuration.

Intended to gate resolver-proxy operations; reverts with {ResolverProxyConfigurationNoRegistered} when the lookup fails.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to verify.
_version	uint256	Version to verify; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.

createBatchConfiguration

function createBatchConfiguration(bytes32 _configurationId, IDiamondCutManager.FacetConfiguration[] _facetConfigurations, bool _isLastBatch, bytes _data) external nonpayable

Parameters

Name	Type	Description
_configurationId	bytes32	undefined
_facetConfigurations	IDiamondCutManager.FacetConfiguration[]	undefined
_isLastBatch	bool	undefined
_data	bytes	undefined

createConfiguration

function createConfiguration(bytes32 _configurationId, IDiamondCutManager.FacetConfiguration[] _facetConfigurations, bytes _data) external nonpayable

Parameters

Name	Type	Description
_configurationId	bytes32	undefined
_facetConfigurations	IDiamondCutManager.FacetConfiguration[]	undefined
_data	bytes	undefined

getBusinessLogicCount

function getBusinessLogicCount() external view returns (uint256 businessLogicCount_)

Returns the total number of business logic keys currently registered in the resolver.

Returns

Name	Type	Description
businessLogicCount_	uint256	The count of registered business logic keys.

getBusinessLogicKeys

function getBusinessLogicKeys(uint256 _pageIndex, uint256 _pageLength) external view returns (bytes32[] businessLogicKeys_)

Returns a list of business logic keys

Parameters

Name	Type	Description
_pageIndex	uint256	members to skip : _pageIndex * _pageLength
_pageLength	uint256	number of members to return

Returns

Name	Type	Description
businessLogicKeys_	bytes32[]	list of business logic keys

getConfigurations

function getConfigurations(uint256 _pageIndex, uint256 _pageLength) external view returns (bytes32[] configurationIds_)

Returns a paginated slice of registered configuration ids.

Pagination is used to keep gas bounded on large registries; out-of-range pages return an empty array rather than reverting.

Parameters

Name	Type	Description
_pageIndex	uint256	Page index; entries skipped equal _pageIndex * _pageLength.
_pageLength	uint256	Maximum number of entries to return.

Returns

Name	Type	Description
configurationIds_	bytes32[]	Slice of configuration ids for the requested page.

getConfigurationsLength

function getConfigurationsLength() external view returns (uint256 configurationsLength_)

Returns the number of distinct configuration keys registered in the manager.

Returns

Name	Type	Description
configurationsLength_	uint256	Total count of registered configuration ids.

getFacetAddressByConfigurationIdVersionAndFacetId

function getFacetAddressByConfigurationIdVersionAndFacetId(bytes32 _configurationId, uint256 _version, bytes32 _facetId) external view returns (address facetAddress_)

Returns the address of a facet inside a configuration version.

Returns address(0) when the facet is not part of the configuration version.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_facetId	bytes32	Facet key to look up.

Returns

Name	Type	Description
facetAddress_	address	Address of the facet, or address(0) if unregistered.

getFacetAddressesByConfigurationIdAndVersion

function getFacetAddressesByConfigurationIdAndVersion(bytes32 _configurationId, uint256 _version, uint256 _pageIndex, uint256 _pageLength) external view returns (address[] facetAddresses_)

Returns a paginated slice of facet addresses registered for a configuration version.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_pageIndex	uint256	Page index; entries skipped equal _pageIndex * _pageLength.
_pageLength	uint256	Maximum number of entries to return.

Returns

Name	Type	Description
facetAddresses_	address[]	Slice of facet addresses for the requested page.

getFacetByConfigurationIdVersionAndFacetId

function getFacetByConfigurationIdVersionAndFacetId(bytes32 _configurationId, uint256 _version, bytes32 _facetId) external view returns (struct IDiamondLoupe.Facet facet_)

Returns the full facet record (id, address, selectors, interface ids) for a facet inside a configuration version.

Returns a zero-valued {IDiamondLoupe.Facet} when the facet is not part of the configuration version.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_facetId	bytes32	Facet key to look up.

Returns

Name	Type	Description
facet_	IDiamondLoupe.Facet	Facet record for _facetId.

getFacetConfigurationsByConfigurationIdAndVersion

function getFacetConfigurationsByConfigurationIdAndVersion(bytes32 _configurationId, uint256 _version, uint256 _start, uint256 _end) external view returns (struct IDiamondCutManager.FacetConfiguration[] facetConfigurations_)

Returns the (facet id, facet version) tuples registered for a configuration version over a half-open index range.

Slice semantics differ from the page-based helpers: _start is inclusive and _end is exclusive, allowing callers to express arbitrary windows.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_start	uint256	Inclusive start index of the slice.
_end	uint256	Exclusive end index of the slice.

Returns

Name	Type	Description
facetConfigurations_	IDiamondCutManager.FacetConfiguration[]	Slice of {FacetConfiguration} entries for the window.

getFacetIdByConfigurationIdVersionAndSelector

function getFacetIdByConfigurationIdVersionAndSelector(bytes32 _configurationId, uint256 _version, bytes4 _selector) external view returns (bytes32 facetId_)

Returns the facet id that owns a selector inside a configuration version.

Returns bytes32(0) when the selector is not registered.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_selector	bytes4	Selector to look up.

Returns

Name	Type	Description
facetId_	bytes32	Facet id owning _selector, or bytes32(0) if none.

getFacetIdsByConfigurationIdAndVersion

function getFacetIdsByConfigurationIdAndVersion(bytes32 _configurationId, uint256 _version, uint256 _pageIndex, uint256 _pageLength) external view returns (bytes32[] facetIds_)

Returns a paginated slice of facet ids registered for a configuration version.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_pageIndex	uint256	Page index; entries skipped equal _pageIndex * _pageLength.
_pageLength	uint256	Maximum number of entries to return.

Returns

Name	Type	Description
facetIds_	bytes32[]	Slice of facet ids for the requested page.

getFacetSelectorsByConfigurationIdVersionAndFacetId

function getFacetSelectorsByConfigurationIdVersionAndFacetId(bytes32 _configurationId, uint256 _version, bytes32 _facetId, uint256 _pageIndex, uint256 _pageLength) external view returns (bytes4[] facetSelectors_)

Returns a paginated slice of selectors registered for a facet inside a configuration version.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_facetId	bytes32	Facet key whose selectors are returned.
_pageIndex	uint256	Page index; entries skipped equal _pageIndex * _pageLength.
_pageLength	uint256	Maximum number of entries to return.

Returns

Name	Type	Description
facetSelectors_	bytes4[]	Slice of selectors for the requested page.

getFacetSelectorsLengthByConfigurationIdVersionAndFacetId

function getFacetSelectorsLengthByConfigurationIdVersionAndFacetId(bytes32 _configurationId, uint256 _version, bytes32 _facetId) external view returns (uint256 facetSelectorsLength_)

Returns the number of selectors registered for a facet inside a configuration version.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_facetId	bytes32	Facet key whose selectors are counted.

Returns

Name	Type	Description
facetSelectorsLength_	uint256	Count of selectors owned by the facet in the version.

getFacetVersionByConfigurationIdVersionAndFacetId

function getFacetVersionByConfigurationIdVersionAndFacetId(bytes32 _configurationId, uint256 _version, bytes32 _facetId) external view returns (uint256 facetVersion_)

Returns the pinned facet version stored inside a configuration version.

Reverts with {FacetIdNotRegistered} when the facet is not part of the configuration version, and with {VersionZero} when _version is 0.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_facetId	bytes32	Facet key to look up.

Returns

Name	Type	Description
facetVersion_	uint256	Pinned facet version inside the configuration version.

getFacetsByConfigurationIdAndVersion

function getFacetsByConfigurationIdAndVersion(bytes32 _configurationId, uint256 _version, uint256 _pageIndex, uint256 _pageLength) external view returns (struct IDiamondLoupe.Facet[] facets_)

Returns a paginated slice of facets for a configuration version, including each facet's address, selectors, and advertised interface ids.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_pageIndex	uint256	Page index; entries skipped equal _pageIndex * _pageLength.
_pageLength	uint256	Maximum number of entries to return.

Returns

Name	Type	Description
facets_	IDiamondLoupe.Facet[]	Slice of {IDiamondLoupe.Facet} entries for the requested page.

getFacetsLengthByConfigurationIdAndVersion

function getFacetsLengthByConfigurationIdAndVersion(bytes32 _configurationId, uint256 _version) external view returns (uint256 facetsLength_)

Returns the number of facets registered under a configuration version.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.
_version	uint256	Version to query; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.

Returns

Name	Type	Description
facetsLength_	uint256	Count of facets in the configuration version.

getLatestVersion

function getLatestVersion(bytes32 _businessLogicKey) external view returns (uint256 latestVersion_)

Returns the latest registered version for the given business logic key.

Parameters

Name	Type	Description
_businessLogicKey	bytes32	The bytes32 key identifying the business logic to query.

Returns

Name	Type	Description
latestVersion_	uint256	The latest registered version for that key; 0 if never registered.

getLatestVersionByConfiguration

function getLatestVersionByConfiguration(bytes32 _configurationId) external view returns (uint256 latestVersion_)

Returns the latest registered version of a configuration.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to query.

Returns

Name	Type	Description
latestVersion_	uint256	Latest finalised version, or 0 when no version is registered.

getLatestVersions

function getLatestVersions(bytes32[] _businessLogicKeys) external view returns (uint256[] latestVersions_)

Batched variant of getLatestVersion that resolves many keys in a single call.

Issued so off-chain consumers can avoid one eth_call per key — JSON-RPC relays such as Hedera's enforce per-IP rate limits on eth_call and reject bursts. Returns 0 for keys that have never been registered (same semantics as the scalar variant).

Parameters

Name	Type	Description
_businessLogicKeys	bytes32[]	keys of the business logics to query.

Returns

Name	Type	Description
latestVersions_	uint256[]	latest version per key, in the same order as _businessLogicKeys.

getReplacementAddress

function getReplacementAddress(address _oldAddress) external view returns (address replacementAddress_)

Returns the replacement address for a given address, or address(0) if none exists

Parameters

Name	Type	Description
_oldAddress	address	the address whose replacement is queried

Returns

Name	Type	Description
replacementAddress_	address	the replacement address, or address(0) if none exists

getSelectorsBlacklist

function getSelectorsBlacklist(bytes32 _configurationId, uint256 _pageIndex, uint256 _pageLength) external view returns (bytes4[] selectors_)

Returns the list of selectors in the blacklist

Parameters

Name	Type	Description
_configurationId	bytes32	the configuration key to be checked.
_pageIndex	uint256	members to skip : _pageIndex * _pageLength
_pageLength	uint256	number of members to return

Returns

Name	Type	Description
selectors_	bytes4[]	List of the selectors in the blacklist

getVersionStatus

function getVersionStatus(bytes32 _businessLogicKey, uint256 _version) external view returns (enum IBusinessLogicResolver.VersionStatus status_)

Returns the current status of a given version for a business logic key.

Parameters

Name	Type	Description
_businessLogicKey	bytes32	The bytes32 key identifying the business logic to query.
_version	uint256	The version number to inspect.

Returns

Name	Type	Description
status_	enum IBusinessLogicResolver.VersionStatus	The VersionStatus (NONE, ACTIVATED, or DEACTIVATED) for that version.

initializeBusinessLogicResolver

function initializeBusinessLogicResolver() external nonpayable returns (bool success_)

Initialises the Business Logic Resolver storage. Must be called once before any registration operations; subsequent calls revert.

Returns

Name	Type	Description
success_	bool	True when initialisation succeeds without reverting.

isBusinessLogicResolver

function isBusinessLogicResolver() external pure returns (bool isBusinessLogicResolver_)

Identity marker used to confirm a candidate address is a genuine IBusinessLogicResolver, checked via low-level call() rather than a direct interface call (see DiamondCut::onlyValidBusinessLogicResolver).

Returns

Name	Type	Description
isBusinessLogicResolver_	bool	Always true for a real BusinessLogicResolver.

isResolverProxyConfigurationRegistered

function isResolverProxyConfigurationRegistered(bytes32 _configurationId, uint256 _version) external view returns (bool)

Non-reverting variant of {checkResolverProxyConfigurationRegistered}.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key to check.
_version	uint256	Version to check; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.

Returns

Name	Type	Description
_0	bool	True when the configuration version is registered and finalised.

registerBusinessLogics

function registerBusinessLogics(IBusinessLogicResolver.BusinessLogicRegistryData[] _businessLogics) external nonpayable

Parameters

Name	Type	Description
_businessLogics	IBusinessLogicResolver.BusinessLogicRegistryData[]	undefined

removeReplacementAddress

function removeReplacementAddress(address _oldAddress) external nonpayable

Removes the replacement address for a given address

Parameters

Name	Type	Description
_oldAddress	address	the address for which to remove the replacement

removeSelectorsFromBlacklist

function removeSelectorsFromBlacklist(bytes32 _configurationId, bytes4[] _selectors) external nonpayable

Removes a list of selectors from the blacklist

Removing a selector only affects subsequent validation and does not mutate already activated configurations.

Parameters

Name	Type	Description
_configurationId	bytes32	the configuration key to be checked.
_selectors	bytes4[]	list of selectors to be removed from the blacklist

resolveBusinessLogicByVersion

function resolveBusinessLogicByVersion(bytes32 _businessLogicKey, uint256 _version) external view returns (address businessLogicAddress_)

Returns the implementation address for a specific version of a business logic.

Parameters

Name	Type	Description
_businessLogicKey	bytes32	Key of the business logic. Business Logic must be active.
_version	uint256	The version number to resolve.

Returns

Name	Type	Description
businessLogicAddress_	address	The implementation address registered at that version.

resolveLatestBusinessLogic

function resolveLatestBusinessLogic(bytes32 _businessLogicKey) external view returns (address businessLogicAddress_)

Returns the business logic address for the latest version.

Parameters

Name	Type	Description
_businessLogicKey	bytes32	Key of the business logic. Business Logic must be active.

Returns

Name	Type	Description
businessLogicAddress_	address	The implementation address registered at the latest version.

resolveResolverProxyCall

function resolveResolverProxyCall(bytes _resolverProxyConfiguration, bytes4 _selector) external view returns (address facetAddress_)

Resolves the facet address that implements a selector for a given configuration and version.

Used by resolver proxies during dispatch. Returns address(0) when no facet claims the selector.

Parameters

Name	Type	Description
_resolverProxyConfiguration	bytes	Resolver proxy full configuration.
_selector	bytes4	Function selector being dispatched.

Returns

Name	Type	Description
facetAddress_	address	Address of the facet that owns _selector, or address(0) if the selector is not registered for the given configuration/version.

resolveResolverProxyCall

function resolveResolverProxyCall(bytes32 _configurationId, uint256 _version, bytes4 _selector) external view returns (address facetAddress_)

Resolves the facet address that implements a selector for a given configuration and version.

Used by resolver proxies during dispatch. Returns address(0) when no facet claims the selector.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key bound to the resolver proxy.
_version	uint256	Version bound to the resolver proxy; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_selector	bytes4	Function selector being dispatched.

Returns

Name	Type	Description
facetAddress_	address	Address of the facet that owns _selector, or address(0) if the selector is not registered for the given configuration/version.

resolveSupportsInterface

function resolveSupportsInterface(bytes32 _configurationId, uint256 _version, bytes4 _interfaceId) external view returns (bool exists_)

Reports whether an interface id is advertised by any facet inside the given configuration and version.

Powers ERC-165 lookups on resolver proxies.

Parameters

Name	Type	Description
_configurationId	bytes32	Configuration key bound to the resolver proxy.
_version	uint256	Version bound to the resolver proxy; must be > 0. Read {getLatestVersionByConfiguration} first when the latest is required.
_interfaceId	bytes4	Interface identifier to test.

Returns

Name	Type	Description
exists_	bool	True if _interfaceId is supported by the configuration version.

setVersionStatus

function setVersionStatus(bytes32 _businessLogicKey, uint256 _version, enum IBusinessLogicResolver.VersionStatus _status) external nonpayable

Sets the status of a registered business logic version.

Restricted to DEFAULT_ADMIN_ROLE. Reverts with InvalidVersionStatus when _status is VersionStatus.NONE, and with BusinessLogicVersionDoesNotExist when _version is zero or has never been registered for _businessLogicKey. Marking a version DEACTIVATED prevents it from being selected into any new resolver-proxy configuration, but does not affect configurations that already reference it.

Parameters

Name	Type	Description
_businessLogicKey	bytes32	The bytes32 key identifying the business logic to update.
_version	uint256	The version number to update.
_status	enum IBusinessLogicResolver.VersionStatus	The new status (ACTIVATED or DEACTIVATED) to assign to the version.

updateReplacementAddress

function updateReplacementAddress(address _oldAddress, address _newAddress) external nonpayable

Updates the replacement address for a given address

Parameters

Name	Type	Description
_oldAddress	address	the address to be replaced
_newAddress	address	the new address to replace it with

Events

BusinessLogicResolverInitialized

event BusinessLogicResolverInitialized()

Emitted once when the BLR itself is initialised.

Fires exclusively from initializeBusinessLogicResolver after the storage write succeeds.

BusinessLogicsRegistered

event BusinessLogicsRegistered(IBusinessLogicResolver.BusinessLogicRegistryData[] businessLogics, uint256[] newLatestVersions)

Event emitted when Business Logic(s) are registered (updated or added).

Parameters

Name	Type	Description
businessLogics	IBusinessLogicResolver.BusinessLogicRegistryData[]	list of registered Business Logics.
newLatestVersions	uint256[]	new latest version per registered key, in the same order as businessLogics.

DiamondBatchConfigurationCancelled

event DiamondBatchConfigurationCancelled(bytes32 indexed configurationId, uint256 indexed version)

Emitted when an in-progress batch configuration is discarded.

Parameters

Name	Type	Description
configurationId indexed	bytes32	Configuration key whose pending batch was cancelled.
version indexed	uint256	Version number that was being assembled and is now dropped.

DiamondBatchConfigurationCreated

event DiamondBatchConfigurationCreated(bytes32 configurationId, IDiamondCutManager.FacetConfiguration[] facetConfigurations, bool isLastBatch, uint256 version, bytes data)

Emitted on every {createBatchConfiguration} call, including the final batch.

Parameters

Name	Type	Description
configurationId	bytes32	Configuration key being assembled.
facetConfigurations	IDiamondCutManager.FacetConfiguration[]	Facets appended in this batch.
isLastBatch	bool	True when this call finalises the configuration version.
version	uint256	Version number being assembled for this configuration.
data	bytes	Additional data passed to the configuration.

DiamondConfigurationCreated

event DiamondConfigurationCreated(bytes32 configurationId, IDiamondCutManager.FacetConfiguration[] facetConfigurations, uint256 version, bytes data)

Emitted when a configuration is created atomically via {createConfiguration}.

Parameters

Name	Type	Description
configurationId	bytes32	Configuration key that was registered.
facetConfigurations	IDiamondCutManager.FacetConfiguration[]	Facets (id, version) that compose the new configuration.
version	uint256	Version number assigned to the newly created configuration.
data	bytes	Additional data passed to the configuration.

ReplacementAddressRemoved

event ReplacementAddressRemoved(address indexed replacedAddress, address indexed replacementAddressRemoved)

Event emitted when a replacement address is removed

Parameters

Name	Type	Description
replacedAddress indexed	address	address for which the replacement is being removed.
replacementAddressRemoved indexed	address	removed replacement address.

ReplacementAddressUpdated

event ReplacementAddressUpdated(address indexed replacedAddress, address indexed replacementAddress)

Event emitted when an old address is replaced with a new one

Parameters

Name	Type	Description
replacedAddress indexed	address	old address been replaced.
replacementAddress indexed	address	new address replacing the old one.

VersionStatusUpdated

event VersionStatusUpdated(bytes32 indexed businessLogicKey, uint256 version, enum IBusinessLogicResolver.VersionStatus status)

Event emitted when a business logic version's status is updated.

Parameters

Name	Type	Description
businessLogicKey indexed	bytes32	Business logic key whose version status changed.
version	uint256	Version number whose status changed.
status	enum IBusinessLogicResolver.VersionStatus	New status assigned to the version.

Errors

BusinessLogicKeyDuplicated

error BusinessLogicKeyDuplicated(bytes32 businessLogicKey)

Thrown when two entries in a registration batch share the same business logic key.

Parameters

Name	Type	Description
businessLogicKey	bytes32	The duplicated key found in the batch.

BusinessLogicKeyMismatch

error BusinessLogicKeyMismatch(address implementation, bytes32 actualKey, bytes32 expectedKey)

Thrown when the key reported by the implementation contract differs from the expected key.

Parameters

Name	Type	Description
implementation	address	Address of the implementation whose key was checked.
actualKey	bytes32	The resolver key returned by the implementation.
expectedKey	bytes32	The resolver key that was expected at registration time.

BusinessLogicVersionDoesNotExist

error BusinessLogicVersionDoesNotExist(uint256 version)

Thrown when the requested version has never been registered for any business logic key.

Parameters

Name	Type	Description
version	uint256	The version number that does not exist in the registry.

DeactivatedVersionNotAllowed

error DeactivatedVersionNotAllowed(bytes32 facetId, uint256 version)

Thrown when a configuration selects a facet version whose status has been set to DEACTIVATED. Configurations that already reference the version are unaffected; this only blocks the version from being selected into a new configuration.

Parameters

Name	Type	Description
facetId	bytes32	Facet id whose selected version is deactivated.
version	uint256	Deactivated version that was selected.

DefaultValueForConfigurationIdNotPermitted

error DefaultValueForConfigurationIdNotPermitted()

Thrown when bytes32(0) is supplied as a configuration id, which is reserved.

DuplicatedFacetInConfiguration

error DuplicatedFacetInConfiguration(bytes32 facetId)

Thrown when the same facet id appears more than once within a configuration.

Parameters

Name	Type	Description
facetId	bytes32	Duplicated facet id.

EmptyFacetConfigurationNotPermitted

error EmptyFacetConfigurationNotPermitted(bytes32 configurationId)

Thrown when attempting to activate a configuration that contains no facets, which would brick any ResolverProxy following the latest version.

Parameters

Name	Type	Description
configurationId	bytes32	Configuration key that was supplied with an empty facet list.

FacetIdNotRegistered

error FacetIdNotRegistered(bytes32 configurationId, bytes32 facetId)

Thrown when a configuration references a facet id that is not registered in the business-logic resolver.

Parameters

Name	Type	Description
configurationId	bytes32	Configuration being created or modified.
facetId	bytes32	Unknown facet id that triggered the revert.

InvalidReplacedAddress

error InvalidReplacedAddress(address replacedAddress)

Thrown when a replaced address is already been used as replacement of other addresses.

Parameters

Name	Type	Description
replacedAddress	address	Replaced address.

InvalidReplacementAddress

error InvalidReplacementAddress(address replacementAddress)

Thrown when a replacement address is already been replaced.

Parameters

Name	Type	Description
replacementAddress	address	Replacement address that is already been replaced and thus cannot replaced another one.

InvalidResolverProxyConfiguration

error InvalidResolverProxyConfiguration(bytes _resolverProxyConfiguration)

Thrown when the provided encoded proxy configuration does not respect the standard.

Parameters

Name	Type	Description
_resolverProxyConfiguration	bytes	wrong encoded proxy configuration.

InvalidVersionStatus

error InvalidVersionStatus()

Thrown when setVersionStatus is called with VersionStatus.NONE, which represents an unregistered version rather than a settable lifecycle state.

OngoingBatchConfigurationNotPermitted

error OngoingBatchConfigurationNotPermitted(bytes32 configurationId)

Thrown when {createConfiguration} is called for a configuration id that already has an in-progress batch, which would prematurely finalise the incomplete batch and absorb any facets that were intended for subsequent batch additions.

Parameters

Name	Type	Description
configurationId	bytes32	Configuration key whose batch is currently open.

ResolverProxyConfigurationNoRegistered

error ResolverProxyConfigurationNoRegistered(bytes32 resolverProxyConfigurationId, uint256 version)

Thrown when a (configurationId, version) pair is referenced but has not been registered (or is still mid-batch and therefore not yet finalised).

Parameters

Name	Type	Description
resolverProxyConfigurationId	bytes32	Configuration key that was looked up.
version	uint256	Version that was looked up.

SelectorAlreadyRegistered

error SelectorAlreadyRegistered(bytes32 configurationId, uint256 version, bytes32 facetId, bytes4 selector)

Thrown when a selector is already registered under another facet for the same (configurationId, version), which would create an ambiguous dispatch.

Parameters

Name	Type	Description
configurationId	bytes32	Configuration where the clash was detected.
version	uint256	Version where the clash was detected.
facetId	bytes32	Facet attempting to register the selector.
selector	bytes4	Selector that is already mapped to a different facet.

SelectorBlacklisted

error SelectorBlacklisted(bytes4 selector)

Thrown when attempting to register a selector that is globally blacklisted.

Parameters

Name	Type	Description
selector	bytes4	Function selector that is forbidden.

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.

VersionZero

error VersionZero(bytes32 configurationId)

Thrown when a configuration version of 0 is supplied to an entry point that requires an explicit version pin.

Callers that want the most recent registered version must read it first via {getLatestVersionByConfiguration} and pass that value.

Parameters

Name	Type	Description
configurationId	bytes32	Configuration key that was looked up.

ZeroKeyNotValidForBusinessLogic

error ZeroKeyNotValidForBusinessLogic()

Thrown when a registration attempt uses the zero bytes32 value as the business logic key.