2020-06-30 12:09:28 +00:00
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pragma solidity ^0.6.0;
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2020-07-09 09:59:49 +00:00
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/**
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* @title interface IVariableDebtToken
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* @author Aave
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* @notice defines the basic interface for a variable debt token.
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* @dev does not inherit from IERC20 to save in contract size
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**/
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2020-06-30 12:09:28 +00:00
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interface IVariableDebtToken {
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2020-07-09 09:59:49 +00:00
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/**
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* @dev mints new variable debt
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* @param _user the user receiving the debt
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* @param _amount the amount of debt being minted
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**/
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function mint(address _user, uint256 _amount) external virtual;
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2020-06-30 12:09:28 +00:00
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2020-07-09 09:59:49 +00:00
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/**
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* @dev burns user variable debt
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* @param _user the user which debt is burnt
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* @param _amount the amount of debt being burned
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**/
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function burn(address _user, uint256 _amount) external virtual;
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/**
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* @dev returns the last index of the user
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* @return the index of the user
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**/
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function getUserIndex(address _user) external virtual view returns(uint256);
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2020-06-30 12:09:28 +00:00
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}
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