Debt Tokens
Debt tokens are interest-accruing tokens that are minted and burned on borrow and repay, representing the debt owed by the token holder. Currently, there is only one type of debt tokens:
Variable debt tokens, representing a debt to the protocol with a variable interest rate
The source code can be found on Github here.
EIP20 Methods
Although debt tokens are modelled on the ERC20/EIP20 standard, they are non-transferrable. Therefore they do not implement any of the standard ERC20/EIP20 functions relating to transfer() and allowance().
balanceOf() will always return the most up to date accumulated debt of the user.
totalSupply() will always return the most up to date total debt accrued by all protocol users for that specific type (variable) of debt token.
Shared Methods
UNDERLYING_ASSET_ADDRESS()
function UNDERLYING_ASSET_ADDRESS()
Returns the underlying asset of the debt token.
POOL()
function POOL()
Returns the address of the associated LendingPool for the debt token.
approveDelegation**()**
function approveDelegation(address delegatee, uint256 amount)
Sets the amount of allowance for delegatee to borrow of a particular debt token.
borrowAllowance**()**
function borrowAllowance(address fromUser, address toUser)
Returns the borrow allowance toUser has been given by fromUser.
Returns the current allowance of toUser for a particular debt token.
Variable Debt Methods
scaledBalanceOf**()**
function scaledBalanceOf(address user)
Returns the principal debt balance of user.
scaledTotalSupply**()**
function scaledTotalSupply()
Returns the scaled total supply of the variable debt token.
getScaledUserBalanceAndSupply**()**
function getScaledUserBalanceAndSupply(address user)
Returns the principal balance of the user and principal total supply.
Return values
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