ComptrollerLens

ComptrollerLens Contract

Lens for querying information relating to liquidations

Solidity API

struct AccountLiquidityLocalVars {
  uint256 sumCollateral;
  uint256 sumBorrowPlusEffects;
  uint256 vTokenBalance;
  uint256 borrowBalance;
  uint256 exchangeRateMantissa;
  uint256 oraclePriceMantissa;
  struct ExponentialNoError.Exp collateralFactor;
  struct ExponentialNoError.Exp exchangeRate;
  struct ExponentialNoError.Exp oraclePrice;
  struct ExponentialNoError.Exp tokensToDenom;
}

liquidateCalculateSeizeTokens

Computes the number of collateral tokens to be seized in a liquidation event

function liquidateCalculateSeizeTokens(address comptroller, address vTokenBorrowed, address vTokenCollateral, uint256 actualRepayAmount) external view returns (uint256, uint256)

Parameters

Name
Type
Description

comptroller

address

Address of comptroller

vTokenBorrowed

address

Address of the borrowed vToken

vTokenCollateral

address

Address of collateral for the borrow

actualRepayAmount

uint256

Repayment amount i.e amount to be repaid of total borrowed amount

Return Values

Name
Type
Description

[0]

uint256

A tuple of error code, and tokens to seize

[1]

uint256

liquidateVAICalculateSeizeTokens

Computes the number of VAI tokens to be seized in a liquidation event

function liquidateVAICalculateSeizeTokens(address comptroller, address vTokenCollateral, uint256 actualRepayAmount) external view returns (uint256, uint256)

Parameters

Name
Type
Description

comptroller

address

Address of comptroller

vTokenCollateral

address

Address of collateral for vToken

actualRepayAmount

uint256

Repayment amount i.e amount to be repaid of the total borrowed amount

Return Values

Name
Type
Description

[0]

uint256

A tuple of error code, and tokens to seize

[1]

uint256

getHypotheticalAccountLiquidity

Computes the hypothetical liquidity and shortfall of an account given a hypothetical borrow A snapshot of the account is taken and the total borrow amount of the account is calculated

function getHypotheticalAccountLiquidity(address comptroller, address account, contract VToken vTokenModify, uint256 redeemTokens, uint256 borrowAmount) external view returns (uint256, uint256, uint256)

Parameters

Name
Type
Description

comptroller

address

Address of comptroller

account

address

Address of the borrowed vToken

vTokenModify

contract VToken

Address of collateral for vToken

redeemTokens

uint256

Number of vTokens being redeemed

borrowAmount

uint256

Amount borrowed

Return Values

Name
Type
Description

[0]

uint256

Returns a tuple of error code, liquidity, and shortfall

[1]

uint256

[2]

uint256

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