/
CTokenInterfaces.sol
67 lines (58 loc) · 3.1 KB
/
CTokenInterfaces.sol
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pragma solidity 0.5.16;
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
contract CTokenInterface {
/* ERC20 */
function transfer(address dst, uint amount) external returns (bool);
function transferFrom(address src, address dst, uint amount) external returns (bool);
function approve(address spender, uint amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function totalSupply() external view returns (uint256);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
/* User Interface */
function isCToken() external view returns (bool);
function underlying() external view returns (IERC20);
function balanceOfUnderlying(address owner) external returns (uint);
function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint);
function borrowRatePerBlock() external view returns (uint);
function supplyRatePerBlock() external view returns (uint);
function totalBorrowsCurrent() external returns (uint);
function borrowBalanceCurrent(address account) external returns (uint);
function borrowBalanceStored(address account) public view returns (uint);
function exchangeRateCurrent() public returns (uint);
function exchangeRateStored() public view returns (uint);
function getCash() external view returns (uint);
function accrueInterest() public returns (uint);
function seize(address liquidator, address borrower, uint seizeTokens) external returns (uint);
}
contract ICToken is CTokenInterface {
/* User Interface */
function redeem(uint redeemTokens) external returns (uint);
function redeemUnderlying(uint redeemAmount) external returns (uint);
function borrow(uint borrowAmount) external returns (uint);
}
// Workaround for issue https://github.com/ethereum/solidity/issues/526
// Defined separate contract as `mint()` override with `.value()` has issues
contract ICErc20 is ICToken {
function mint(uint mintAmount) external returns (uint);
function repayBorrow(uint repayAmount) external returns (uint);
function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint);
function liquidateBorrow(address borrower, uint repayAmount, address cTokenCollateral) external returns (uint);
}
contract ICEther is ICToken {
function mint() external payable;
function repayBorrow() external payable;
function repayBorrowBehalf(address borrower) external payable;
function liquidateBorrow(address borrower, address cTokenCollateral) external payable;
}
contract IPriceOracle {
/**
* @notice Get the underlying price of a cToken asset
* @param cToken The cToken to get the underlying price of
* @return The underlying asset price mantissa (scaled by 1e18).
* Zero means the price is unavailable.
*/
function getUnderlyingPrice(CTokenInterface cToken) external view returns (uint);
}