IIGovernanceVotePower#

event DelegateChanged(
    address delegator,
    address fromDelegate,
    address toDelegate
)

Emitted when an account starts delegating vote power or switches its delegation to another address.

The event is always emitted from a GovernanceVotePower contract.

event DelegateVotesChanged(
    address delegate,
    uint256 previousBalance,
    uint256 newBalance
)

Emitted when a delegate's vote power changes, as a result of a new delegation or a token transfer, for example.

The event is always emitted from a GovernanceVotePower contract.

function delegate(
    address _to
) external;

Delegates all governance vote power of msg.sender to address _to.

function getCleanupBlockNumber(
) external view returns (
    uint256);

Get the current cleanup block number set with setCleanupBlockNumber.

function getDelegateOfAt(
    address _who,
    uint256 _blockNumber
) external view returns (
    address);

Gets the address an account is delegating its governance vote power to, at a given block number.

function getDelegateOfAtNow(
    address _who
) external view returns (
    address);

Gets the address an account is delegating its governance vote power to, at the latest block number.

function getVotes(
    address _who
) external view returns (
    uint256);

Gets the governance vote power of an address at the latest block, including all delegations made to it.

function ownerToken(
) external view returns (
    contract IVPToken);

Get the token that this governance vote power contract belongs to.

function pChainStakeMirror(
) external view returns (
    contract IPChainStakeMirror);

Get the stake mirror contract that this governance vote power contract belongs to.

function setCleanerContract(
    address _cleanerContract
) external;

Set the contract that is allowed to call history cleaning methods.

function setCleanupBlockNumber(
    uint256 _blockNumber
) external;

Set the cleanup block number. Historic data for the blocks before cleanupBlockNumber can be erased. History before that block should never be used since it can be inconsistent. In particular, cleanup block number must be lower than the current vote power block.

function undelegate(
) external;

Undelegates all governance vote power of msg.sender.

function updateAtTokenTransfer(
    address _from,
    address _to,
    uint256 _fromBalance,
    uint256 _toBalance,
    uint256 _amount
) external;

Update governance vote power of all involved delegates after tokens are transferred.

This function MUST be called after each governance token transfer for the delegates to reflect the correct balance.

function votePowerOfAt(
    address _who,
    uint256 _blockNumber
) external view returns (
    uint256);

Gets the governance vote power of an address at a given block number, including all delegations made to it.