mirror of
https://github.com/Instadapp/dsa-connectors.git
synced 2024-07-29 22:37:00 +00:00
Add Aave v1 & v2
This commit is contained in:
parent
ff35db4fd4
commit
959ecbc2e3
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@ -10,6 +10,11 @@ abstract contract Stores {
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*/
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*/
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address constant internal ethAddr = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
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address constant internal ethAddr = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
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/**
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* @dev Return Wrapped ETH address
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*/
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address constant internal wethAddr = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
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/**
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/**
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* @dev Return memory variable address
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* @dev Return memory variable address
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*/
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*/
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16
contracts/common/utils.sol
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16
contracts/common/utils.sol
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@ -0,0 +1,16 @@
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pragma solidity ^0.7.0;
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import { TokenInterface } from "./interfaces.sol";
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abstract contract Utils {
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function convertEthToWeth(bool isEth, TokenInterface token, uint amount) internal {
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if(isEth) token.deposit{value: amount}();
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}
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function convertWethToEth(bool isEth, TokenInterface token, uint amount) internal {
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if(isEth) {
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token.approve(address(token), amount);
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token.withdraw(amount);
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}
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}
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}
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@ -1,7 +1,7 @@
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pragma solidity ^0.7.0;
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pragma solidity ^0.7.0;
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import { DSMath } from "../../common/math.sol";
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import { DSMath } from "../../../common/math.sol";
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import { Basic } from "../../common/basic.sol";
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import { Basic } from "../../../common/basic.sol";
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import { AaveProviderInterface, AaveInterface } from "./interface.sol";
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import { AaveProviderInterface, AaveInterface } from "./interface.sol";
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abstract contract Helpers is DSMath, Basic {
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abstract contract Helpers is DSMath, Basic {
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@ -17,6 +17,8 @@ abstract contract Helpers is DSMath, Basic {
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/**
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/**
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* @dev Checks if collateral is enabled for an asset
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* @dev Checks if collateral is enabled for an asset
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* @param aave Aave Interface
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* @param token token address of the asset.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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*/
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*/
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function getIsColl(AaveInterface aave, address token) internal view returns (bool isCol) {
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function getIsColl(AaveInterface aave, address token) internal view returns (bool isCol) {
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(, , , , , , , , , isCol) = aave.getUserReserveData(token, address(this));
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(, , , , , , , , , isCol) = aave.getUserReserveData(token, address(this));
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@ -27,7 +29,7 @@ abstract contract Helpers is DSMath, Basic {
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* @param aave Aave Interface
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* @param aave Aave Interface
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* @param token token address of the collateral.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param token token address of the collateral.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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*/
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*/
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function getWithdrawBalance(AaveInterface aave, address token) internal view returns (uint bal) {
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function getCollateralBalance(AaveInterface aave, address token) internal view returns (uint bal) {
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(bal, , , , , , , , , ) = aave.getUserReserveData(token, address(this));
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(bal, , , , , , , , , ) = aave.getUserReserveData(token, address(this));
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}
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}
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@ -1,7 +1,7 @@
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pragma solidity ^0.7.0;
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pragma solidity ^0.7.0;
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import { TokenInterface } from "../../common/interfaces.sol";
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import { TokenInterface } from "../../../common/interfaces.sol";
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import { Stores } from "../../common/stores.sol";
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import { Stores } from "../../../common/stores.sol";
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import { Helpers } from "./helpers.sol";
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import { Helpers } from "./helpers.sol";
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import { Events } from "./events.sol";
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import { Events } from "./events.sol";
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import { AaveInterface, AaveCoreInterface, ATokenInterface } from "./interface.sol";
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import { AaveInterface, AaveCoreInterface, ATokenInterface } from "./interface.sol";
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@ -144,7 +144,7 @@ abstract contract AaveResolver is Events, Helpers {
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for (uint i = 0; i < _length; i++) {
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for (uint i = 0; i < _length; i++) {
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address token = tokens[i];
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address token = tokens[i];
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if (getWithdrawBalance(aave, token) > 0 && !getIsColl(aave, token)) {
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if (getCollateralBalance(aave, token) > 0 && !getIsColl(aave, token)) {
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aave.setUserUseReserveAsCollateral(token, true);
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aave.setUserUseReserveAsCollateral(token, true);
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}
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}
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}
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}
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9
contracts/connectors/aave/v2/events.sol
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9
contracts/connectors/aave/v2/events.sol
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@ -0,0 +1,9 @@
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pragma solidity ^0.7.0;
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contract Events {
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event LogDeposit(address indexed token, uint256 tokenAmt, uint256 getId, uint256 setId);
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event LogWithdraw(address indexed token, uint256 tokenAmt, uint256 getId, uint256 setId);
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event LogBorrow(address indexed token, uint256 tokenAmt, uint256 indexed rateMode, uint256 getId, uint256 setId);
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event LogPayback(address indexed token, uint256 tokenAmt, uint256 indexed rateMode, uint256 getId, uint256 setId);
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event LogEnableCollateral(address[] tokens);
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}
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49
contracts/connectors/aave/v2/helpers.sol
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49
contracts/connectors/aave/v2/helpers.sol
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@ -0,0 +1,49 @@
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pragma solidity ^0.7.0;
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import { DSMath } from "../../../common/math.sol";
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import { Basic } from "../../../common/basic.sol";
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import { AaveLendingPoolProviderInterface, AaveDataProviderInterface } from "./interface.sol";
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abstract contract Helpers is DSMath, Basic {
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/**
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* @dev Aave Lending Pool Provider
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*/
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AaveLendingPoolProviderInterface constant internal aaveProvider = AaveLendingPoolProviderInterface(0xB53C1a33016B2DC2fF3653530bfF1848a515c8c5);
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/**
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* @dev Aave Protocol Data Provider
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*/
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AaveDataProviderInterface constant internal aaveData = AaveDataProviderInterface(0x057835Ad21a177dbdd3090bB1CAE03EaCF78Fc6d);
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/**
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* @dev Aave Referral Code
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*/
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uint16 constant internal referralCode = 3228;
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/**
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* @dev Checks if collateral is enabled for an asset
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* @param token token address of the asset.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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*/
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function getIsColl(address token) internal view returns (bool isCol) {
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(, , , , , , , , isCol) = aaveData.getUserReserveData(token, address(this));
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}
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/**
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* @dev Get total debt balance & fee for an asset
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* @param token token address of the debt.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param rateMode Borrow rate mode (Stable = 1, Variable = 2)
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*/
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function getPaybackBalance(address token, uint rateMode) internal view returns (uint) {
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(, uint stableDebt, uint variableDebt, , , , , , ) = aaveData.getUserReserveData(token, address(this));
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return rateMode == 1 ? stableDebt : variableDebt;
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}
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/**
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* @dev Get total collateral balance for an asset
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* @param token token address of the collateral.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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*/
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function getCollateralBalance(address token) internal view returns (uint bal) {
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(bal, , , , , , , ,) = aaveData.getUserReserveData(token, address(this));
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}
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}
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46
contracts/connectors/aave/v2/interface.sol
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46
contracts/connectors/aave/v2/interface.sol
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@ -0,0 +1,46 @@
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pragma solidity ^0.7.0;
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interface AaveInterface {
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function deposit(address _asset, uint256 _amount, address _onBehalfOf, uint16 _referralCode) external;
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function withdraw(address _asset, uint256 _amount, address _to) external;
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function borrow(
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address _asset,
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uint256 _amount,
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uint256 _interestRateMode,
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uint16 _referralCode,
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address _onBehalfOf
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) external;
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function repay(address _asset, uint256 _amount, uint256 _rateMode, address _onBehalfOf) external;
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function setUserUseReserveAsCollateral(address _asset, bool _useAsCollateral) external;
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}
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interface AaveLendingPoolProviderInterface {
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function getLendingPool() external view returns (address);
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}
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interface AaveDataProviderInterface {
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function getReserveTokensAddresses(address _asset) external view returns (
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address aTokenAddress,
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address stableDebtTokenAddress,
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address variableDebtTokenAddress
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);
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function getUserReserveData(address _asset, address _user) external view returns (
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uint256 currentATokenBalance,
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uint256 currentStableDebt,
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uint256 currentVariableDebt,
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uint256 principalStableDebt,
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uint256 scaledVariableDebt,
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uint256 stableBorrowRate,
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uint256 liquidityRate,
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uint40 stableRateLastUpdated,
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bool usageAsCollateralEnabled
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);
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}
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interface AaveAddressProviderRegistryInterface {
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function getAddressesProvidersList() external view returns (address[] memory);
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}
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interface ATokenInterface {
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function balanceOf(address _user) external view returns(uint256);
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}
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184
contracts/connectors/aave/v2/main.sol
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184
contracts/connectors/aave/v2/main.sol
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@ -0,0 +1,184 @@
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pragma solidity ^0.7.0;
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import { TokenInterface } from "../../../common/interfaces.sol";
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import { Stores } from "../../../common/stores.sol";
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import { Utils } from "../../../common/utils.sol";
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import { Helpers } from "./helpers.sol";
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import { Events } from "./events.sol";
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import { AaveInterface } from "./interface.sol";
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abstract contract AaveResolver is Events, Helpers, Utils {
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/**
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* @dev Deposit ETH/ERC20_Token.
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* @param token token address to deposit.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param amt token amount to deposit.
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* @param getId Get token amount at this ID from `InstaMemory` Contract.
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* @param setId Set token amount at this ID in `InstaMemory` Contract.
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*/
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function deposit(
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address token,
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uint amt,
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uint getId,
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uint setId
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, amt);
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AaveInterface aave = AaveInterface(aaveProvider.getLendingPool());
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bool isEth = token == ethAddr;
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address _token = isEth ? wethAddr : token;
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TokenInterface tokenContract = TokenInterface(_token);
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if (isEth) {
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_amt = _amt == uint(-1) ? address(this).balance : _amt;
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convertEthToWeth(isEth, tokenContract, _amt);
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} else {
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_amt = _amt == uint(-1) ? tokenContract.balanceOf(address(this)) : _amt;
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}
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tokenContract.approve(address(aave), _amt);
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aave.deposit(_token, _amt, address(this), referralCode);
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if (!getIsColl(_token)) {
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aave.setUserUseReserveAsCollateral(_token, true);
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}
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setUint(setId, _amt);
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_eventName = "LogDeposit(address,uint256,uint256,uint256)";
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_eventParam = abi.encode(token, _amt, getId, setId);
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}
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/**
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* @dev Withdraw ETH/ERC20_Token.
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* @param token token address to withdraw.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param amt token amount to withdraw.
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* @param getId Get token amount at this ID from `InstaMemory` Contract.
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* @param setId Set token amount at this ID in `InstaMemory` Contract.
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*/
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function withdraw(
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address token,
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uint amt,
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uint getId,
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uint setId
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, amt);
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AaveInterface aave = AaveInterface(aaveProvider.getLendingPool());
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bool isEth = token == ethAddr;
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address _token = isEth ? wethAddr : token;
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TokenInterface tokenContract = TokenInterface(_token);
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uint initialBal = tokenContract.balanceOf(address(this));
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aave.withdraw(_token, _amt, address(this));
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uint finalBal = tokenContract.balanceOf(address(this));
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_amt = sub(finalBal, initialBal);
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convertWethToEth(isEth, tokenContract, _amt);
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setUint(setId, _amt);
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_eventName = "LogWithdraw(address,uint256,uint256,uint256)";
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_eventParam = abi.encode(token, _amt, getId, setId);
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}
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/**
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* @dev Borrow ETH/ERC20_Token.
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* @param token token address to borrow.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param amt token amount to borrow.
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* @param rateMode type of borrow debt.(For Stable: 1, Variable: 2)
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* @param getId Get token amount at this ID from `InstaMemory` Contract.
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* @param setId Set token amount at this ID in `InstaMemory` Contract.
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*/
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function borrow(
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address token,
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uint amt,
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uint rateMode,
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uint getId,
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uint setId
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, amt);
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AaveInterface aave = AaveInterface(aaveProvider.getLendingPool());
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bool isEth = token == ethAddr;
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address _token = isEth ? wethAddr : token;
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aave.borrow(_token, _amt, rateMode, referralCode, address(this));
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convertWethToEth(isEth, TokenInterface(_token), _amt);
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setUint(setId, _amt);
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_eventName = "LogBorrow(address,uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(token, _amt, rateMode, getId, setId);
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}
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/**
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* @dev Payback borrowed ETH/ERC20_Token.
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* @param token token address to payback.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
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* @param amt token amount to payback.
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* @param rateMode type of borrow debt.(For Stable: 1, Variable: 2)
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* @param getId Get token amount at this ID from `InstaMemory` Contract.
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* @param setId Set token amount at this ID in `InstaMemory` Contract.
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*/
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function payback(
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address token,
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uint amt,
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uint rateMode,
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uint getId,
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uint setId
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) external payable returns (string memory _eventName, bytes memory _eventParam) {
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uint _amt = getUint(getId, amt);
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AaveInterface aave = AaveInterface(aaveProvider.getLendingPool());
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bool isEth = token == ethAddr;
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address _token = isEth ? wethAddr : token;
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TokenInterface tokenContract = TokenInterface(_token);
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_amt = _amt == uint(-1) ? getPaybackBalance(_token, rateMode) : _amt;
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if (isEth) convertEthToWeth(isEth, tokenContract, _amt);
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tokenContract.approve(address(aave), _amt);
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aave.repay(_token, _amt, rateMode, address(this));
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||||||
|
setUint(setId, _amt);
|
||||||
|
|
||||||
|
_eventName = "LogPayback(address,uint256,uint256,uint256,uint256)";
|
||||||
|
_eventParam = abi.encode(token, _amt, rateMode, getId, setId);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @dev Enable collateral
|
||||||
|
* @param tokens Array of tokens to enable collateral
|
||||||
|
*/
|
||||||
|
function enableCollateral(
|
||||||
|
address[] calldata tokens
|
||||||
|
) external payable returns (string memory _eventName, bytes memory _eventParam) {
|
||||||
|
uint _length = tokens.length;
|
||||||
|
require(_length > 0, "0-tokens-not-allowed");
|
||||||
|
|
||||||
|
AaveInterface aave = AaveInterface(aaveProvider.getLendingPool());
|
||||||
|
|
||||||
|
for (uint i = 0; i < _length; i++) {
|
||||||
|
address token = tokens[i];
|
||||||
|
if (getCollateralBalance(token) > 0 && !getIsColl(token)) {
|
||||||
|
aave.setUserUseReserveAsCollateral(token, true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
_eventName = "LogEnableCollateral(address[]);";
|
||||||
|
_eventParam = abi.encode(tokens);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
contract ConnectAave is AaveResolver {
|
||||||
|
string public name = "AaveV2-v1.1";
|
||||||
|
}
|
Loading…
Reference in New Issue
Block a user