aave-protocol-v2/contracts/tokenization/interfaces/IVariableDebtToken.sol
2020-07-13 11:54:08 +03:00

30 lines
849 B
Solidity

pragma solidity ^0.6.0;
/**
* @title interface IVariableDebtToken
* @author Aave
* @notice defines the basic interface for a variable debt token.
* @dev does not inherit from IERC20 to save in contract size
**/
interface IVariableDebtToken {
/**
* @dev mints new variable debt
* @param _user the user receiving the debt
* @param _amount the amount of debt being minted
**/
function mint(address _user, uint256 _amount) external virtual;
/**
* @dev burns user variable debt
* @param _user the user which debt is burnt
* @param _amount the amount of debt being burned
**/
function burn(address _user, uint256 _amount) external virtual;
/**
* @dev returns the last index of the user
* @return the index of the user
**/
function getUserIndex(address _user) external virtual view returns (uint256);
}