TokenLib.sol

View Source: contracts/libraries/TokenLib.sol​
TokenLib
Structs
EIP712Domain
struct EIP712Domain {
 string name,
 uint256 chainId,
 address verifyingContract
}
Acknowledgment
struct Acknowledgment {
 string text
}
Contract Members
Constants & Variables
bytes32 internal constant EIP712DOMAIN_TYPEHASH;
bytes32 internal constant ACK_TYPEHASH;
bytes32 internal constant WHITELIST;
bytes32 internal constant INVESTORSKEY;
Events
event ModuleUpgraded(uint8[]  _types, address  _module);
event ModuleArchived(uint8[]  _types, address  _module);
event ModuleUnarchived(uint8[]  _types, address  _module);
event ModuleRemoved(uint8[]  _types, address  _module);
event ModuleBudgetChanged(uint8[]  _moduleTypes, address  _module, uint256  _oldBudget, uint256  _budget);
event DocumentUpdated(bytes32 indexed _name, string  _uri, bytes32  _documentHash);
event DocumentRemoved(bytes32 indexed _name, string  _uri, bytes32  _documentHash);
Functions
​hash(struct TokenLib.EIP712Domain _eip712Domain)​
​hash(struct TokenLib.Acknowledgment _ack)​
​recoverFreezeIssuanceAckSigner(bytes _signature)​
​recoverDisableControllerAckSigner(bytes _signature)​
​extractSigner(struct TokenLib.Acknowledgment _ack, bytes _signature)​
​archiveModule(struct SecurityTokenStorage.ModuleData _moduleData)​
​unarchiveModule(IModuleRegistry _moduleRegistry, struct SecurityTokenStorage.ModuleData _moduleData)​
​upgradeModule(IModuleRegistry _moduleRegistry, struct SecurityTokenStorage.ModuleData _moduleData)​
​removeModule(address _module, mapping(uint8 => address[]) _modules, mapping(address => struct SecurityTokenStorage.ModuleData) _modulesToData, mapping(bytes32 => address[]) _names)​
​_removeModuleWithIndex(uint8 _type, uint256 _index, mapping(uint8 => address[]) _modules, mapping(address => struct SecurityTokenStorage.ModuleData) _modulesToData)​
​changeModuleBudget(address _module, uint256 _change, bool _increase, IERC20 _polyToken, mapping(address => struct SecurityTokenStorage.ModuleData) _modulesToData)​
​getValueAt(struct SecurityTokenStorage.Checkpoint[] _checkpoints, uint256 _checkpointId, uint256 _currentValue)​
​adjustCheckpoints(struct SecurityTokenStorage.Checkpoint[] _checkpoints, uint256 _newValue, uint256 _currentCheckpointId)​
​adjustInvestorCount(uint256 _holderCount, address _from, address _to, uint256 _value, uint256 _balanceTo, uint256 _balanceFrom, IDataStore _dataStore)​
​setDocument(mapping(bytes32 => struct SecurityTokenStorage.Document) document, bytes32[] docNames, mapping(bytes32 => uint256) docIndexes, bytes32 name, string uri, bytes32 documentHash)​
​removeDocument(mapping(bytes32 => struct SecurityTokenStorage.Document) document, bytes32[] docNames, mapping(bytes32 => uint256) docIndexes, bytes32 name)​
​verifyTransfer(address[] modules, mapping(address => struct SecurityTokenStorage.ModuleData) modulesToData, address from, address to, uint256 value, bytes data, bool transfersFrozen)​
​canTransfer(bool success, bytes32 appCode, address to, uint256 value, uint256 balanceOfFrom)​
​_getKey(bytes32 _key1, address _key2)​
​_isExistingInvestor(address _investor, IDataStore dataStore)​
hash
function hash(struct TokenLib.EIP712Domain _eip712Domain) internal pure
returns(bytes32)
Arguments
Name
Type
Description
_eip712Domain
struct TokenLib.EIP712Domain
​
hash
function hash(struct TokenLib.Acknowledgment _ack) internal pure
returns(bytes32)
Arguments
Name
Type
Description
_ack
struct TokenLib.Acknowledgment
​
recoverFreezeIssuanceAckSigner
function recoverFreezeIssuanceAckSigner(bytes _signature) external view
returns(address)
Arguments
Name
Type
Description
_signature
bytes
​
recoverDisableControllerAckSigner
function recoverDisableControllerAckSigner(bytes _signature) external view
returns(address)
Arguments
Name
Type
Description
_signature
bytes
​
extractSigner
function extractSigner(struct TokenLib.Acknowledgment _ack, bytes _signature) internal view
returns(address)
Arguments
Name
Type
Description
_ack
struct TokenLib.Acknowledgment
​
_signature
bytes
​
archiveModule
Archives a module attached to the SecurityToken
function archiveModule(struct SecurityTokenStorage.ModuleData _moduleData) external nonpayable
Arguments
Name
Type
Description
_moduleData
struct SecurityTokenStorage.ModuleData
Storage data
unarchiveModule
Unarchives a module attached to the SecurityToken
function unarchiveModule(IModuleRegistry _moduleRegistry, struct SecurityTokenStorage.ModuleData _moduleData) external nonpayable
Arguments
Name
Type
Description
_moduleRegistry
IModuleRegistry
​
_moduleData
struct SecurityTokenStorage.ModuleData
Storage data
upgradeModule
Upgrades a module attached to the SecurityToken
function upgradeModule(IModuleRegistry _moduleRegistry, struct SecurityTokenStorage.ModuleData _moduleData) external nonpayable
Arguments
Name
Type
Description
_moduleRegistry
IModuleRegistry
​
_moduleData
struct SecurityTokenStorage.ModuleData
Storage data
removeModule
Removes a module attached to the SecurityToken
function removeModule(address _module, mapping(uint8 => address[]) _modules, mapping(address => struct SecurityTokenStorage.ModuleData) _modulesToData, mapping(bytes32 => address[]) _names) external nonpayable
Arguments
Name
Type
Description
_module
address
address of module to unarchive
_modules
mapping(uint8 => address[])
​
_modulesToData
mapping(address => struct SecurityTokenStorage.ModuleData)
​
_names
mapping(bytes32 => address[])
​
_removeModuleWithIndex
Internal - Removes a module attached to the SecurityToken by index
function _removeModuleWithIndex(uint8 _type, uint256 _index, mapping(uint8 => address[]) _modules, mapping(address => struct SecurityTokenStorage.ModuleData) _modulesToData) internal nonpayable
Arguments
Name
Type
Description
_type
uint8
​
_index
uint256
​
_modules
mapping(uint8 => address[])
​
_modulesToData
mapping(address => struct SecurityTokenStorage.ModuleData)
​
changeModuleBudget
allows owner to increase/decrease POLY approval of one of the modules
function changeModuleBudget(address _module, uint256 _change, bool _increase, IERC20 _polyToken, mapping(address => struct SecurityTokenStorage.ModuleData) _modulesToData) external nonpayable
Arguments
Name
Type
Description
_module
address
module address
_change
uint256
change in allowance
_increase
bool
true if budget has to be increased, false if decrease
_polyToken
IERC20
​
_modulesToData
mapping(address => struct SecurityTokenStorage.ModuleData)
​
getValueAt
Queries a value at a defined checkpoint
function getValueAt(struct SecurityTokenStorage.Checkpoint[] _checkpoints, uint256 _checkpointId, uint256 _currentValue) external view
returns(uint256)
Returns
uint256
Arguments
Name
Type
Description
_checkpoints
struct SecurityTokenStorage.Checkpoint[]
is array of Checkpoint objects
_checkpointId
uint256
is the Checkpoint ID to query
_currentValue
uint256
is the Current value of checkpoint
adjustCheckpoints
Stores the changes to the checkpoint objects
function adjustCheckpoints(struct SecurityTokenStorage.Checkpoint[] _checkpoints, uint256 _newValue, uint256 _currentCheckpointId) external nonpayable
Arguments
Name
Type
Description
_checkpoints
struct SecurityTokenStorage.Checkpoint[]
is the affected checkpoint object array
_newValue
uint256
is the new value that needs to be stored
_currentCheckpointId
uint256
​
adjustInvestorCount
Keeps track of the number of non-zero token holders
function adjustInvestorCount(uint256 _holderCount, address _from, address _to, uint256 _value, uint256 _balanceTo, uint256 _balanceFrom, IDataStore _dataStore) external nonpayable
returns(uint256)
Arguments
Name
Type
Description
_holderCount
uint256
Number of current token holders
_from
address
Sender of transfer
_to
address
Receiver of transfer
_value
uint256
Value of transfer
_balanceTo
uint256
Balance of the _to address
_balanceFrom
uint256
Balance of the _from address
_dataStore
IDataStore
address of data store
setDocument
Used to attach a new document to the contract, or update the URI or hash of an existing attached document
function setDocument(mapping(bytes32 => struct SecurityTokenStorage.Document) document, bytes32[] docNames, mapping(bytes32 => uint256) docIndexes, bytes32 name, string uri, bytes32 documentHash) external nonpayable
Arguments
Name
Type
Description
document
mapping(bytes32 => struct SecurityTokenStorage.Document)
Hash hash (of the contents) of the document.
docNames
bytes32[]
​
docIndexes
mapping(bytes32 => uint256)
​
name
bytes32
Name of the document. It should be unique always
uri
string
Off-chain uri of the document from where it is accessible to investors/advisors to read.
documentHash
bytes32
hash (of the contents) of the document.
removeDocument
Used to remove an existing document from the contract by giving the name of the document.
function removeDocument(mapping(bytes32 => struct SecurityTokenStorage.Document) document, bytes32[] docNames, mapping(bytes32 => uint256) docIndexes, bytes32 name) external nonpayable
Arguments
Name
Type
Description
document
mapping(bytes32 => struct SecurityTokenStorage.Document)
​
docNames
bytes32[]
​
docIndexes
mapping(bytes32 => uint256)
​
name
bytes32
Name of the document. It should be unique always
verifyTransfer
Validate transfer with TransferManager module if it exists
function verifyTransfer(address[] modules, mapping(address => struct SecurityTokenStorage.ModuleData) modulesToData, address from, address to, uint256 value, bytes data, bool transfersFrozen) public view
returns(bool, bytes32)
Returns
bool
Arguments
Name
Type
Description
modules
address[]
Array of addresses for transfer managers
modulesToData
mapping(address => struct SecurityTokenStorage.ModuleData)
Mapping of the modules details
from
address
sender of transfer
to
address
receiver of transfer
value
uint256
value of transfer
data
bytes
data to indicate validation
transfersFrozen
bool
whether the transfer are frozen or not.
canTransfer
function canTransfer(bool success, bytes32 appCode, address to, uint256 value, uint256 balanceOfFrom) external pure
returns(bytes1, bytes32)
Arguments
Name
Type
Description
success
bool
​
appCode
bytes32
​
to
address
​
value
uint256
​
balanceOfFrom
uint256
​
_getKey
function _getKey(bytes32 _key1, address _key2) internal pure
returns(bytes32)
Arguments
Name
Type
Description
_key1
bytes32
​
_key2
address
​
_isExistingInvestor
function _isExistingInvestor(address _investor, IDataStore dataStore) internal view
returns(bool)
Arguments
Name
Type
Description
_investor
address
​
dataStore
IDataStore
​
Standard Interface of ERC1594 (IERC1594.sol)
MakerDAOOracle.sol
Last updated 7 months ago
Name	Type	Description
_eip712Domain	struct TokenLib.EIP712Domain