all files / contracts/ Constants.sol

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// SPDX-License-Identifier: GPL-2.0-or-later
 
pragma solidity ^0.8.0;
 
abstract contract Constants {
    // Universal
 
    uint internal constant SECONDS_PER_YEAR = 365.2425 * 86400; // Gregorian calendar
 
 
    // Protocol parameters
 
    uint internal constant MAX_SANE_AMOUNT = type(uint112).max;
    uint internal constant MAX_SANE_SMALL_AMOUNT = type(uint96).max;
    uint internal constant MAX_SANE_DEBT_AMOUNT = type(uint144).max;
    uint internal constant INTERNAL_DEBT_PRECISION = 1e9;
    uint internal constant MAX_ENTERED_MARKETS = 10; // per sub-account
    uint internal constant MAX_POSSIBLE_ENTERED_MARKETS = 2**32; // limited by size of AccountStorage.numMarketsEntered
    uint internal constant CONFIG_FACTOR_SCALE = 4_000_000_000; // must fit into a uint32
    uint internal constant RESERVE_FEE_SCALE = 4_000_000_000; // must fit into a uint32
    uint32 internal constant DEFAULT_RESERVE_FEE = uint32(0.23 * 4_000_000_000);
    uint internal constant INITIAL_INTEREST_ACCUMULATOR = 1e27;
    uint internal constant AVERAGE_LIQUIDITY_PERIOD = 24 * 60 * 60;
    uint16 internal constant MIN_UNISWAP3_OBSERVATION_CARDINALITY = 144;
    uint24 internal constant DEFAULT_TWAP_WINDOW_SECONDS = 30 * 60;
    uint32 internal constant DEFAULT_BORROW_FACTOR = uint32(0.28 * 4_000_000_000);
    uint32 internal constant SELF_COLLATERAL_FACTOR = uint32(0.95 * 4_000_000_000);
 
 
    // Implementation internals
 
    uint internal constant REENTRANCYLOCK__UNLOCKED = 1;
    uint internal constant REENTRANCYLOCK__LOCKED = 2;
 
    uint8 internal constant DEFERLIQUIDITY__NONE = 0;
    uint8 internal constant DEFERLIQUIDITY__CLEAN = 1;
    uint8 internal constant DEFERLIQUIDITY__DIRTY = 2;
 
 
    // Pricing types
 
    uint16 internal constant PRICINGTYPE__PEGGED = 1;
    uint16 internal constant PRICINGTYPE__UNISWAP3_TWAP = 2;
    uint16 internal constant PRICINGTYPE__FORWARDED = 3;
 
 
    // Modules
 
    // Public single-proxy modules
    uint internal constant MODULEID__INSTALLER = 1;
    uint internal constant MODULEID__MARKETS = 2;
    uint internal constant MODULEID__LIQUIDATION = 3;
    uint internal constant MODULEID__GOVERNANCE = 4;
    uint internal constant MODULEID__EXEC = 5;
    uint internal constant MODULEID__SWAP = 6;
 
    uint internal constant MAX_EXTERNAL_SINGLE_PROXY_MODULEID = 499_999;
 
    // Public multi-proxy modules
    uint internal constant MODULEID__ETOKEN = 500_000;
    uint internal constant MODULEID__DTOKEN = 500_001;
 
    uint internal constant MAX_EXTERNAL_MODULEID = 999_999;
 
    // Internal modules
    uint internal constant MODULEID__RISK_MANAGER = 1_000_000;
 
    // Interest rate models
    //   Default for new markets
    uint internal constant MODULEID__IRM_DEFAULT = 2_000_000;
    //   Testing-only
    uint internal constant MODULEID__IRM_ZERO = 2_000_001;
    uint internal constant MODULEID__IRM_FIXED = 2_000_002;
    uint internal constant MODULEID__IRM_LINEAR = 2_000_100;
    //   Classes
    uint internal constant MODULEID__IRM_CLASS__STABLE = 2_000_500;
    uint internal constant MODULEID__IRM_CLASS__MAJOR = 2_000_501;
    uint internal constant MODULEID__IRM_CLASS__MIDCAP = 2_000_502;
    uint internal constant MODULEID__IRM_CLASS__MEGA = 2_000_503;
 
    // Swap types
    uint internal constant SWAP_TYPE__UNI_EXACT_INPUT_SINGLE = 1;
    uint internal constant SWAP_TYPE__UNI_EXACT_INPUT = 2;
    uint internal constant SWAP_TYPE__UNI_EXACT_OUTPUT_SINGLE = 3;
    uint internal constant SWAP_TYPE__UNI_EXACT_OUTPUT = 4;
    uint internal constant SWAP_TYPE__1INCH = 5;
 
    uint internal constant SWAP_TYPE__UNI_EXACT_OUTPUT_SINGLE_REPAY = 6;
    uint internal constant SWAP_TYPE__UNI_EXACT_OUTPUT_REPAY = 7;
}