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Collateral Assets

Overview​

Each fixed rate market implements a collateral framework to ensure that borrowers overcollateralize their debts with assets of greater value. The Market Manager provides functions to deposit and withdraw different types of collateral:

  • Collateral Assets (e.g., WETH, wstETH)
  • Loan Tokens
  • Fixed Tokens
  • Limit Orders

Deposit Collateral​

function depositCollateral(
    ILoanToken loanToken,
    bytes32 collateralMarketId,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Deposits collateral assets into the market
  • Updates account's collateral balance
  • Supports deposits on behalf of other addresses

Withdraw Collateral​

function withdrawCollateral(
    ILoanToken loanToken,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Withdraws collateral if health check passes
  • Updates account state
  • Requires sufficient collateral balance

Fixed Token Management​

Deposit Fixed Tokens​

function depositFixed(
    ILoanToken loanToken,
    Seconds maturity,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Deposits Fixed Tokens as collateral
  • Maturity-specific accounting

Withdraw Fixed Tokens​

function withdrawFixed(
    ILoanToken loanToken,
    Seconds maturity,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Withdraws Fixed Token collateral
  • Performs a health check
  • Validates maturity conditions
  • Requires sufficient balance

Limit Order Management​

Deposit Limit Order​

function depositLimitOrder(
    ILoanToken loanToken,
    Seconds maturity,
    uint256 liquidityTokenId,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Deposits limit orders as collateral
  • Links to specific liquidity token

Withdraw Limit Order​

function withdrawLimitOrder(
    ILoanToken loanToken,
    Seconds maturity,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Withdraws limit order positions
  • Performs a health check

Loan Token Management​

Deposit Loan​

function depositLoan(
    ILoanToken loanToken,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Deposits Loan Tokens as collateral
  • Updates account loan balance
  • Supports deposits on behalf

Withdraw Loan​

function withdrawLoan(
    ILoanToken loanToken,
    address onBehalf,
    uint256 amount
) external nonReentrant
  • Withdraws Loan Token balance
  • Performs a health check
  • Requires sufficient balance