IDelegatedAccessControl
IDelegatedAccessControl
RoleAdminChanged
event RoleAdminChanged(address delegate, string role, string previousAdminRole, string newAdminRole)
_Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
`DELEGATED_ADMIN` is the starting admin for all roles, despite {RoleAdminChanged} not being emitted signaling this.
_Available since v3.1.__
RoleGranted
event RoleGranted(address delegate, string role, address account, address sender)
_Emitted when `account` is granted `role`.
`sender` is the account that originated the contract call, an admin role bearer except when using {DelegatedAccessControl-setupRole}.
RoleRevoked
event RoleRevoked(address delegate, string role, address account, address sender)
_Emitted when `account` is revoked `role`.
`sender` is the account that originated the contract call: - if using `revokeRole`, it is the admin role bearer - if using `renounceRole`, it is the role bearer (i.e. `account`)_
grantRole
function grantRole(address delegate, string role, address account) external
_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._
revokeRole
function revokeRole(address delegate, string role, address account) external
_Revokes `role` from `account`.
If `account` had been granted `role`, emits a {RoleRevoked} event.
Requirements:
- the caller must have ``role``'s admin role._
renounceRole
function renounceRole(address delegate, string role, address account) external
_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 granted `role`, emits a {RoleRevoked} event.
Requirements:
- the caller must be `account`._
hasRole
function hasRole(address delegate, string role, address account) external view returns (bool)
Returns `true` if `account` has been granted `role`.
checkRole
function checkRole(address delegate, string role, address account) external view
revert if the `account` does not have the specified role.
Name | Type | Description |
---|---|---|
delegate | address | delegate to check |
role | string | the role specifier. |
account | address | the address to check the role for. |
getRoleAdmin
function getRoleAdmin(address delegate, string role) external view returns (string)
_Returns the admin role that controls `role`. See {grantRole} and {revokeRole}.
To change a role's admin, use {AccessControl-setRoleAdmin}.