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31 lines
870 B
Solidity
31 lines
870 B
Solidity
// SPDX-License-Identifier: agpl-3.0
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pragma solidity ^0.6.8;
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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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interface IVariableDebtToken {
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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;
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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;
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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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}
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