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Aave Book
  • Introduction
  • TradFi vs DeFi: Lending
  • Market forces x Interest Rate Models
  • On Indexes
    • Why use indexes?
  • Scaling and ATokens
  • Deposit & Borrow Interest
  • Stable borrowing
    • 🚧Under construction
  • Liquidation
    • 🚧TODO: Full example
    • 🚧Under construction: oracles
  • Primer
    • Bitmap & Masks
      • 🚧padding and bytes
    • WadRayLibrary
      • Math Operations
      • 🚧WIP: Scaling different decimal representations
      • 🚧WIP: 2's complement
      • 🚧casting: to uint128
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  • Functions
    • General Execution flow
    • Architecture & Design choices
      • 🚧Upgradability and Proxies
    • Common Functions
      • getReserveFactor, getDecimals
      • .cache
      • .updateState
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      • SupplyCap, BorrowCap
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        • 🚧more on flags
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    • supply
      • validateSupply
      • transfer & mint
      • isFirstSupply
        • isUsingAsCollateralOne, isUsingAsCollateralAny
      • On check-effects-interactions pattern
    • withdraw
      • get user balance & withdraw amount
      • validateWithdraw
      • collateral check
      • burn ATokens
      • Ensure existing loans are collateralized
    • borrow
      • getIsolationModeState
      • .validateBorrow
      • Mint debt token
      • setBorrowing
      • update IsolationMode debt
      • transfer underlying to user
    • repay
      • get current debt
      • validateRepay, paybackAmount
      • burn debt tokens
      • Cleanup + Collect repay
    • liquidate
      • _calculateDebt
      • validateLiquidationCall
      • getConfigurationData
      • calculateAvailableCollateralToLiquidate
      • 🚧_burnDebtTokens
      • liquidate/burn collateral
      • liquidation Fee
      • Wrap-up
    • 🚧swapBorrowRateMode
    • 🚧setUserUseReserveAsCollateral
  • Contracts
    • AToken
      • Simple example: mint & balanceOf
    • StableDebtToken
      • Implementation explained
    • VariableDebtToken
    • DefaultReserveInterestRateStrategy
    • L2
      • 🚧PriceOracleSentinel
  • Audit findings
    • 🚧Under construction
  • Appendix
    • Simple, Compound, APR, APY
  • Aave Features
    • Risk Management
      • Supply & Borrow Caps
      • Isolation Mode
      • Siloed Borrowing
    • Other features
      • Repay with ATokens
      • eMode: High efficiency Mode
      • 🚧Aave Vault
      • 🚧Portal
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  • Execution flow
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  1. Functions

swapBorrowRateMode

PreviousWrap-upNextsetUserUseReserveAsCollateral

Last updated 1 year ago

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Overview

This function is called when the user wishes to swap his current interest mode to the other:

  • stable -> variable

  • or vice versa

Users can only have a debt position in either stable or variable. Cannot have both stable and variable debt for the same asset.

Execution flow

We will breakdown and examine the unique sections of logics within swapBorrowRateMode. Code delineated in orange are common functions and can be explored in that section.

Visual Aid

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