FraxlendPairConstants.sol

// SPDX-License-Identifier: ISC
pragma solidity ^0.8.19;

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// | /_/   /_/   \__,_/_/|_|  /_/   /_/_/ /_/\__,_/_/ /_/\___/\___/   |
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// ====================================================================
// ===================== FraxlendPairConstants ========================
// ====================================================================
// Frax Finance: https://github.com/FraxFinance

// Primary Author
// Drake Evans: https://github.com/DrakeEvans

// Reviewers
// Dennis: https://github.com/denett
// Sam Kazemian: https://github.com/samkazemian
// Travis Moore: https://github.com/FortisFortuna
// Jack Corddry: https://github.com/corddry
// Rich Gee: https://github.com/zer0blockchain

// ====================================================================

/// @title FraxlendPairConstants
/// @author Drake Evans (Frax Finance) https://github.com/drakeevans
/// @notice  An abstract contract which contains the errors and constants for the FraxlendPair contract
abstract contract FraxlendPairConstants {
    // ============================================================================================
    // Constants
    // ============================================================================================

    // Precision settings
    uint256 public constant LTV_PRECISION = 1e5; // 5 decimals
    uint256 public constant LIQ_PRECISION = 1e5;
    uint256 public constant UTIL_PREC = 1e5;
    uint256 public constant FEE_PRECISION = 1e5;
    uint256 public constant EXCHANGE_PRECISION = 1e18;
    uint256 public constant DEVIATION_PRECISION = 1e5;
    uint256 public constant RATE_PRECISION = 1e18;

    // Protocol Fee
    uint256 public constant MAX_PROTOCOL_FEE = 5e4; // 50% 1e5 precision

    error Insolvent(uint256 _borrow, uint256 _collateral, uint256 _exchangeRate);
    error BorrowerSolvent();
    error InsufficientAssetsInContract(uint256 _assets, uint256 _request);
    error SlippageTooHigh(uint256 _minOut, uint256 _actual);
    error BadSwapper();
    error InvalidPath(address _expected, address _actual);
    error BadProtocolFee();
    error PastDeadline(uint256 _blockTimestamp, uint256 _deadline);
    error SetterRevoked();
    error ExceedsMaxOracleDeviation();
    error InvalidReceiver();
    error ExternalAssetVaultOnly();
    error BadDirtyLiquidation();
    error MinURChangeMax();
}