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0xC0f7311227684A400dD9b0D91979B8f21B9C3137
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0xb9d9e9e1896dce76a715ba1ecf4dc33f349f87e8b7acee3c6dbbebfbe7b8d9af
159329762025-05-08 5:15:35267 days ago1746681335
Euler: Kink IRM Factory
 Contract Creation0 ETH

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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xB76F9d33...244310bBc
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
IRMLinearKink
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 20000 runs
Other Settings:
cancun EvmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 2 : IRMLinearKink.sol
// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.8.0;

import "./IIRM.sol";

/// @title IRMLinearKink
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice Implementation of an interest rate model, where interest rate grows linearly with utilization, and spikes
/// after reaching kink
contract IRMLinearKink is IIRM {
    /// @notice Base interest rate applied when utilization is equal zero
    uint256 public immutable baseRate;
    /// @notice Slope of the function before the kink
    uint256 public immutable slope1;
    /// @notice Slope of the function after the kink
    uint256 public immutable slope2;
    /// @notice Utilization at which the slope of the interest rate function changes. In type(uint32).max scale.
    uint256 public immutable kink;

    constructor(uint256 baseRate_, uint256 slope1_, uint256 slope2_, uint32 kink_) {
        baseRate = baseRate_;
        slope1 = slope1_;
        slope2 = slope2_;
        kink = kink_;
    }

    /// @inheritdoc IIRM
    function computeInterestRate(address vault, uint256 cash, uint256 borrows)
        external
        view
        override
        returns (uint256)
    {
        if (msg.sender != vault) revert E_IRMUpdateUnauthorized();

        return computeInterestRateInternal(vault, cash, borrows);
    }

    /// @inheritdoc IIRM
    function computeInterestRateView(address vault, uint256 cash, uint256 borrows)
        external
        view
        override
        returns (uint256)
    {
        return computeInterestRateInternal(vault, cash, borrows);
    }

    function computeInterestRateInternal(address, uint256 cash, uint256 borrows) internal view returns (uint256) {
        uint256 totalAssets = cash + borrows;

        uint32 utilization = totalAssets == 0
            ? 0 // empty pool arbitrarily given utilization of 0
            : uint32(borrows * type(uint32).max / totalAssets);

        uint256 ir = baseRate;

        if (utilization <= kink) {
            ir += utilization * slope1;
        } else {
            ir += kink * slope1;

            uint256 utilizationOverKink;
            unchecked {
                utilizationOverKink = utilization - kink;
            }
            ir += slope2 * utilizationOverKink;
        }

        return ir;
    }
}

File 2 of 2 : IIRM.sol
// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity >=0.8.0;

/// @title IIRM
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice Interface of the interest rate model contracts used by EVault
interface IIRM {
    error E_IRMUpdateUnauthorized();

    /// @notice Perform potentially state mutating computation of the new interest rate
    /// @param vault Address of the vault to compute the new interest rate for
    /// @param cash Amount of assets held directly by the vault
    /// @param borrows Amount of assets lent out to borrowers by the vault
    /// @return Then new interest rate in second percent yield (SPY), scaled by 1e27
    function computeInterestRate(address vault, uint256 cash, uint256 borrows) external returns (uint256);

    /// @notice Perform computation of the new interest rate without mutating state
    /// @param vault Address of the vault to compute the new interest rate for
    /// @param cash Amount of assets held directly by the vault
    /// @param borrows Amount of assets lent out to borrowers by the vault
    /// @return Then new interest rate in second percent yield (SPY), scaled by 1e27
    function computeInterestRateView(address vault, uint256 cash, uint256 borrows) external view returns (uint256);
}

Settings
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  "metadata": {
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  },
  "outputSelection": {
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}

Contract Security Audit

Contract ABI

API
[{"inputs":[{"internalType":"uint256","name":"baseRate_","type":"uint256"},{"internalType":"uint256","name":"slope1_","type":"uint256"},{"internalType":"uint256","name":"slope2_","type":"uint256"},{"internalType":"uint32","name":"kink_","type":"uint32"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"E_IRMUpdateUnauthorized","type":"error"},{"inputs":[],"name":"baseRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"vault","type":"address"},{"internalType":"uint256","name":"cash","type":"uint256"},{"internalType":"uint256","name":"borrows","type":"uint256"}],"name":"computeInterestRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"vault","type":"address"},{"internalType":"uint256","name":"cash","type":"uint256"},{"internalType":"uint256","name":"borrows","type":"uint256"}],"name":"computeInterestRateView","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"kink","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"slope1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"slope2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

Contract Creation Code

Decompile Bytecode Switch to Opcodes View
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Deployed Bytecode

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