all files / plugins/assets/compoundv3/vendor/ CometExtInterface.sol

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// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;
 
struct TotalsBasic {
    uint64 baseSupplyIndex;
    uint64 baseBorrowIndex;
    uint64 trackingSupplyIndex;
    uint64 trackingBorrowIndex;
    uint104 totalSupplyBase;
    uint104 totalBorrowBase;
    uint40 lastAccrualTime;
    uint8 pauseFlags;
}
 
/**
 * @title Compound's Comet Ext Interface
 * @notice An efficient monolithic money market protocol
 * @author Compound
 */
abstract contract CometExtInterface {
    error BadAmount();
    error BadNonce();
    error BadSignatory();
    error InvalidValueS();
    error InvalidValueV();
    error SignatureExpired();
 
    function allow(address manager, bool isAllowed) external virtual;
 
    function allowBySig(
        address owner,
        address manager,
        bool isAllowed,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external virtual;
 
    function collateralBalanceOf(address account, address asset)
        external
        view
        virtual
        returns (uint128);
 
    function baseTrackingAccrued(address account) external view virtual returns (uint64);
 
    function baseAccrualScale() external view virtual returns (uint64);
 
    function baseIndexScale() external view virtual returns (uint64);
 
    function factorScale() external view virtual returns (uint64);
 
    function priceScale() external view virtual returns (uint64);
 
    function maxAssets() external view virtual returns (uint8);
 
    function totalsBasic() external view virtual returns (TotalsBasic memory);
 
    function version() external view virtual returns (string memory);
 
    /**
     * ===== ERC20 interfaces =====
     * Does not include the following functions/events, which are defined in `CometMainInterface`
     * instead:
     * - function decimals() virtual external view returns (uint8)
     * - function totalSupply() virtual external view returns (uint256)
     * - function transfer(address dst, uint amount) virtual external returns (bool)
     * - function transferFrom(address src, address dst, uint amount) virtual external returns
        (bool)
     * - function balanceOf(address owner) virtual external view returns (uint256)
     * - event Transfer(address indexed from, address indexed to, uint256 amount)
     */
    function name() external view virtual returns (string memory);
 
    function symbol() external view virtual returns (string memory);
 
    /**
     * @notice Approve `spender` to transfer up to `amount` from `src`
     * @dev This will overwrite the approval amount for `spender`
     *  and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)
     * @param spender The address of the account which may transfer tokens
     * @param amount The number of tokens that are approved (-1 means infinite)
     * @return Whether or not the approval succeeded
     */
    function approve(address spender, uint256 amount) external virtual returns (bool);
 
    /**
     * @notice Get the current allowance from `owner` for `spender`
     * @param owner The address of the account which owns the tokens to be spent
     * @param spender The address of the account which may transfer tokens
     * @return The number of tokens allowed to be spent (-1 means infinite)
     */
    function allowance(address owner, address spender) external view virtual returns (uint256);
 
    event Approval(address indexed owner, address indexed spender, uint256 amount);
}