Merge pull request #253 from VenusProtocol/feat/ven-3041

[VEN-3041] Add Yearn markets to the Core Pool

contracts/oracles/ERC4626Oracle.sol

@@ -3,27 +3,30 @@ pragma solidity 0.8.25;
 
 import { IERC4626 } from "../interfaces/IERC4626.sol";
 import { CorrelatedTokenOracle } from "./common/CorrelatedTokenOracle.sol";
-import { EXP_SCALE } from "@venusprotocol/solidity-utilities/contracts/constants.sol";
 
 /**
  * @title ERC4626Oracle
  * @author Venus
  * @notice This oracle fetches the price of ERC4626 tokens
  */
 contract ERC4626Oracle is CorrelatedTokenOracle {
+    uint256 public immutable ONE_CORRELATED_TOKEN;
+
     /// @notice Constructor for the implementation contract.
     /// @custom:oz-upgrades-unsafe-allow constructor
     constructor(
         address correlatedToken,
         address underlyingToken,
         address resilientOracle
-    ) CorrelatedTokenOracle(correlatedToken, underlyingToken, resilientOracle) {}
+    ) CorrelatedTokenOracle(correlatedToken, underlyingToken, resilientOracle) {
+        ONE_CORRELATED_TOKEN = 10 ** IERC4626(correlatedToken).decimals();
+    }
 
     /**
      * @notice Fetches the amount of underlying token for 1 correlated token
      * @return amount The amount of underlying token for correlated token
      */
     function _getUnderlyingAmount() internal view override returns (uint256) {
-        return IERC4626(CORRELATED_TOKEN).convertToAssets(EXP_SCALE);
+        return IERC4626(CORRELATED_TOKEN).convertToAssets(ONE_CORRELATED_TOKEN);
     }
 }

deploy/19-deploy-yearn-oracles.ts

@@ -0,0 +1,49 @@
+import { ethers } from "hardhat";
+import { DeployFunction } from "hardhat-deploy/dist/types";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
+
+import { ADDRESSES } from "../helpers/deploymentConfig";
+
+const func: DeployFunction = async function ({ getNamedAccounts, deployments, network }: HardhatRuntimeEnvironment) {
+  const { deploy } = deployments;
+  const { deployer } = await getNamedAccounts();
+  const { WETH, USDC, USDT, USDS, yvUSDC_1, yvUSDT_1, yvUSDS_1, yvWETH_1 } = ADDRESSES[network.name];
+
+  const resilientOracle = await ethers.getContract("ResilientOracle");
+  await deploy("yvUSDC-1_ERC4626Oracle", {
+    contract: "ERC4626Oracle",
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [yvUSDC_1, USDC, resilientOracle.address],
+  });
+
+  await deploy("yvUSDT-1_ERC4626Oracle", {
+    contract: "ERC4626Oracle",
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [yvUSDT_1, USDT, resilientOracle.address],
+  });
+
+  await deploy("yvUSDS-1_ERC4626Oracle", {
+    contract: "ERC4626Oracle",
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [yvUSDS_1, USDS, resilientOracle.address],
+  });
+
+  await deploy("yvWETH-1_ERC4626Oracle", {
+    contract: "ERC4626Oracle",
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [yvWETH_1, WETH, resilientOracle.address],
+  });
+};
+
+func.tags = ["yearn"];
+func.skip = async (hre: HardhatRuntimeEnvironment) => hre.network.name !== "ethereum" && hre.network.name !== "sepolia";
+
+export default func;