From e4ec3db116b8c076adc798c9afc81765d1f0ea12 Mon Sep 17 00:00:00 2001
From: pradyuman-verma <pradyumnverma27@gmail.com>
Date: Sun, 10 Apr 2022 17:57:02 +0530
Subject: [PATCH] added disable collateral optimism
---
.../optimism/connectors/aave/v3/events.sol | 1 +
.../optimism/connectors/aave/v3/main.sol | 26 +++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/contracts/optimism/connectors/aave/v3/events.sol b/contracts/optimism/connectors/aave/v3/events.sol
index 09c88ea7..b29b4425 100644
--- a/contracts/optimism/connectors/aave/v3/events.sol
+++ b/contracts/optimism/connectors/aave/v3/events.sol
@@ -29,6 +29,7 @@ contract Events {
uint256 setId
);
event LogEnableCollateral(address[] tokens);
+ event LogDisableCollateral(address[] tokens);
event LogSwapRateMode(address indexed token, uint256 rateMode);
event LogSetUserEMode(uint8 categoryId);
}
diff --git a/contracts/optimism/connectors/aave/v3/main.sol b/contracts/optimism/connectors/aave/v3/main.sol
index 2beb8e67..da927eee 100644
--- a/contracts/optimism/connectors/aave/v3/main.sol
+++ b/contracts/optimism/connectors/aave/v3/main.sol
@@ -251,6 +251,32 @@ abstract contract AaveResolver is Events, Helpers {
_eventParam = abi.encode(tokens);
}
+ /**
+ * @dev Disable collateral
+ * @notice Disable an array of tokens as collateral
+ * @param tokens Array of tokens to disable as collateral
+ */
+ function disableCollateral(address[] calldata tokens)
+ external
+ payable
+ returns (string memory _eventName, bytes memory _eventParam)
+ {
+ uint256 _length = tokens.length;
+ require(_length > 0, "0-tokens-not-allowed");
+
+ AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+ for (uint256 i = 0; i < _length; i++) {
+ address token = tokens[i];
+ if (getCollateralBalance(token) > 0 && getIsColl(token)) {
+ aave.setUserUseReserveAsCollateral(token, false);
+ }
+ }
+
+ _eventName = "LogDisableCollateral(address[])";
+ _eventParam = abi.encode(tokens);
+ }
+
/**
* @dev Swap borrow rate mode
* @notice Swaps user borrow rate mode between variable and stable