Insurance
Pays out Vault in case of default
Methods
DEFAULT_ADMIN_ROLE
function DEFAULT_ADMIN_ROLE() external view returns (bytes32)
Returns
_0
bytes32
undefined
EMERGENCY_ADMIN
function EMERGENCY_ADMIN() external view returns (bytes32)
Returns
_0
bytes32
undefined
GOVERNANCE
function GOVERNANCE() external view returns (bytes32)
Returns
_0
bytes32
undefined
clearingHouse
function clearingHouse() external view returns (contract IClearingHouse)
ClearingHouse contract
Returns
_0
contract IClearingHouse
undefined
fundInsurance
function fundInsurance(uint256 amount) external nonpayable
Fund insurance. In case of bad debt, first recapitalize the Vault.
Parameters
amount
uint256
Amount of UA tokens to be transfered
getRoleAdmin
function getRoleAdmin(bytes32 role) external view returns (bytes32)
Returns the admin role that controls role
. See {grantRole} and {revokeRole}. To change a role's admin, use {_setRoleAdmin}.
Parameters
role
bytes32
undefined
Returns
_0
bytes32
undefined
grantRole
function grantRole(bytes32 role, address account) external nonpayable
Grants role
to account
. If account
had not been already granted role
, emits a {RoleGranted} event. Requirements: - the caller must have role
's admin role. May emit a {RoleGranted} event.
Parameters
role
bytes32
undefined
account
address
undefined
hasRole
function hasRole(bytes32 role, address account) external view returns (bool)
Returns true
if account
has been granted role
.
Parameters
role
bytes32
undefined
account
address
undefined
Returns
_0
bool
undefined
isEmergencyAdmin
function isEmergencyAdmin(address account) external view returns (bool)
Parameters
account
address
undefined
Returns
_0
bool
undefined
isGovernor
function isGovernor(address account) external view returns (bool)
Parameters
account
address
undefined
Returns
_0
bool
undefined
removeInsurance
function removeInsurance(uint256 amount) external nonpayable
Withdraw some amount from the Insurance
Parameters
amount
uint256
UA amount to withdraw from the Insurance
renounceRole
function renounceRole(bytes32 role, address account) external nonpayable
Revokes role
from the calling account. Roles are often managed via {grantRole} and {revokeRole}: this function's purpose is to provide a mechanism for accounts to lose their privileges if they are compromised (such as when a trusted device is misplaced). If the calling account had been revoked role
, emits a {RoleRevoked} event. Requirements: - the caller must be account
. May emit a {RoleRevoked} event.
Parameters
role
bytes32
undefined
account
address
undefined
revokeRole
function revokeRole(bytes32 role, address account) external nonpayable
Revokes role
from account
. If account
had been granted role
, emits a {RoleRevoked} event. Requirements: - the caller must have role
's admin role. May emit a {RoleRevoked} event.
Parameters
role
bytes32
undefined
account
address
undefined
setClearingHouse
function setClearingHouse(contract IClearingHouse newClearingHouse) external nonpayable
Update the ClearingHouse
Parameters
newClearingHouse
contract IClearingHouse
Address of the new ClearingHouse
settleDebt
function settleDebt(uint256 amount) external nonpayable
Settle bad debt in the Vault (in UA)settleDebt
won't revert if the Insurance balance isn't large enough to cover the debt amount
, so from the point of view of the Vault it'll seem like the Insurance paid back the debt (while it's not). Yet Insurance will keep track of this accounting imbalance with the systemBadDebt
variable. The first action of the Insurance will be to spur this debt before adding new funds to the Insurance balance (see fundInsurance
).
The UA amount transferred to the Vault is not assigned to any user's balance because the Vault cancels the debt of the individual user when calling settleDebt
(see settleLiquidationOnCollaterals
).
Parameters
amount
uint256
Amount of tokens withdrawn for settlement
supportsInterface
function supportsInterface(bytes4 interfaceId) external view returns (bool)
See {IERC165-supportsInterface}.
Parameters
interfaceId
bytes4
undefined
Returns
_0
bool
undefined
systemBadDebt
function systemBadDebt() external view returns (uint256)
Debt which could not be settled by insurance
Returns
_0
uint256
undefined
token
function token() external view returns (contract IERC20Metadata)
Insurance token
Returns
_0
contract IERC20Metadata
undefined
vault
function vault() external view returns (contract IVault)
Vault contract
Returns
_0
contract IVault
undefined
Events
ClearingHouseChanged
event ClearingHouseChanged(contract IClearingHouse newClearingHouse)
Emitted when a new ClearingHouse is connected to the issuer
Parameters
newClearingHouse
contract IClearingHouse
undefined
InsuranceRemoved
event InsuranceRemoved(uint256 amount)
Emitted when some insurance reserves are withdrawn by governance
Parameters
amount
uint256
undefined
RoleAdminChanged
event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole)
Parameters
role indexed
bytes32
undefined
previousAdminRole indexed
bytes32
undefined
newAdminRole indexed
bytes32
undefined
RoleGranted
event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender)
Parameters
role indexed
bytes32
undefined
account indexed
address
undefined
sender indexed
address
undefined
RoleRevoked
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender)
Parameters
role indexed
bytes32
undefined
account indexed
address
undefined
sender indexed
address
undefined
SystemDebtChanged
event SystemDebtChanged(uint256 newSystemDebt)
Emitted when the system debt is updated, upwards or downwards
Parameters
newSystemDebt
uint256
undefined
Errors
Insurance_ClearingHouseAlreadySet
error Insurance_ClearingHouseAlreadySet()
Emitted when the clearingHouse has already been set (one time call function)
Insurance_ClearingHouseZeroAddress
error Insurance_ClearingHouseZeroAddress()
Emitted when the proposed clearingHouse address is equal to the zero address
Insurance_InsufficientInsurance
error Insurance_InsufficientInsurance()
Emitted when locked insurance falls below insurance ratio
Insurance_SenderNotClearingHouse
error Insurance_SenderNotClearingHouse()
Emitted when the sender is not the clearingHouse address
Insurance_SenderNotVault
error Insurance_SenderNotVault()
Emitted when the sender is not the vault address
Insurance_ZeroAddressConstructor
error Insurance_ZeroAddressConstructor(uint8 paramIndex)
Emitted when the zero address is provided as a parameter in the constructor
Parameters
paramIndex
uint8
undefined
PRBMathSD59x18__MulInputTooSmall
error PRBMathSD59x18__MulInputTooSmall()
Emitted when one of the inputs is MIN_SD59x18.
PRBMathSD59x18__MulOverflow
error PRBMathSD59x18__MulOverflow(uint256 rAbs)
Emitted when the intermediary absolute result overflows SD59x18.
Parameters
rAbs
uint256
undefined
PRBMath__MulDivFixedPointOverflow
error PRBMath__MulDivFixedPointOverflow(uint256 prod1)
Emitted when the result overflows uint256.
Parameters
prod1
uint256
undefined
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