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| Exit Market | 13303721 | 2 days ago | IN | 0 frxETH | 0.00000056 | ||||
| Enter Markets | 13256049 | 3 days ago | IN | 0 frxETH | 0.00000028 | ||||
| Enter Markets | 13186980 | 5 days ago | IN | 0 frxETH | 0.00000028 | ||||
| Enter Markets | 13147347 | 5 days ago | IN | 0 frxETH | 0.00000002 | ||||
| Enter Markets | 12907316 | 11 days ago | IN | 0 frxETH | 0.00000002 | ||||
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| Enter Markets | 12510859 | 20 days ago | IN | 0 frxETH | 0.00000028 | ||||
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| Enter Markets | 12109706 | 29 days ago | IN | 0 frxETH | 0.00000001 | ||||
| Enter Markets | 12109182 | 29 days ago | IN | 0 frxETH | 0.00000002 | ||||
| _set Pending Adm... | 12077978 | 30 days ago | IN | 0 frxETH | 0 | ||||
| Enter Markets | 11827161 | 36 days ago | IN | 0 frxETH | 0.00000001 | ||||
| Enter Markets | 11826711 | 36 days ago | IN | 0 frxETH | 0.00000001 | ||||
| _set Collateral ... | 11825792 | 36 days ago | IN | 0 frxETH | 0.00000021 | ||||
| _set Collateral ... | 11825788 | 36 days ago | IN | 0 frxETH | 0.00000018 | ||||
| _set Market Borr... | 11825269 | 36 days ago | IN | 0 frxETH | 0.0000002 | ||||
| _set Market Supp... | 11825266 | 36 days ago | IN | 0 frxETH | 0.00000021 | ||||
| _deploy Market | 11825263 | 36 days ago | IN | 0 frxETH | 0.00000508 | ||||
| _set Market Borr... | 11825168 | 36 days ago | IN | 0 frxETH | 0.0000002 | ||||
| _set Market Supp... | 11825165 | 36 days ago | IN | 0 frxETH | 0.00000021 | ||||
| _deploy Market | 11825161 | 36 days ago | IN | 0 frxETH | 0.00000491 | ||||
| _set Collateral ... | 11483682 | 44 days ago | IN | 0 frxETH | 0.0000002 | ||||
| _set Market Borr... | 11481892 | 44 days ago | IN | 0 frxETH | 0.0000002 | ||||
| _set Market Supp... | 11481889 | 44 days ago | IN | 0 frxETH | 0.00000021 |
Latest 1 internal transaction
| Parent Transaction Hash | Block | From | To | |||
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| 8069099 | 123 days ago | Contract Creation | 0 frxETH |
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Contract Name:
Unitroller
Compiler Version
v0.8.10+commit.fc410830
Contract Source Code (Solidity)
/**
*Submitted for verification at fraxscan.com on 2024-08-06
*/
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.0 ^0.8.0 ^0.8.1 ^0.8.10 ^0.8.2;
// contracts/compound/CarefulMath.sol
/**
* @title Careful Math
* @author Compound
* @notice Derived from OpenZeppelin's SafeMath library
* https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/math/SafeMath.sol
*/
contract CarefulMath {
/**
* @dev Possible error codes that we can return
*/
enum MathError {
NO_ERROR,
DIVISION_BY_ZERO,
INTEGER_OVERFLOW,
INTEGER_UNDERFLOW
}
/**
* @dev Multiplies two numbers, returns an error on overflow.
*/
function mulUInt(uint256 a, uint256 b) internal pure returns (MathError, uint256) {
if (a == 0) {
return (MathError.NO_ERROR, 0);
}
uint256 c;
unchecked {
c = a * b;
}
if (c / a != b) {
return (MathError.INTEGER_OVERFLOW, 0);
} else {
return (MathError.NO_ERROR, c);
}
}
/**
* @dev Integer division of two numbers, truncating the quotient.
*/
function divUInt(uint256 a, uint256 b) internal pure returns (MathError, uint256) {
if (b == 0) {
return (MathError.DIVISION_BY_ZERO, 0);
}
return (MathError.NO_ERROR, a / b);
}
/**
* @dev Subtracts two numbers, returns an error on overflow (i.e. if subtrahend is greater than minuend).
*/
function subUInt(uint256 a, uint256 b) internal pure returns (MathError, uint256) {
if (b <= a) {
return (MathError.NO_ERROR, a - b);
} else {
return (MathError.INTEGER_UNDERFLOW, 0);
}
}
/**
* @dev Adds two numbers, returns an error on overflow.
*/
function addUInt(uint256 a, uint256 b) internal pure returns (MathError, uint256) {
uint256 c;
unchecked {
c = a + b;
}
if (c >= a) {
return (MathError.NO_ERROR, c);
} else {
return (MathError.INTEGER_OVERFLOW, 0);
}
}
/**
* @dev add a and b and then subtract c
*/
function addThenSubUInt(
uint256 a,
uint256 b,
uint256 c
) internal pure returns (MathError, uint256) {
(MathError err0, uint256 sum) = addUInt(a, b);
if (err0 != MathError.NO_ERROR) {
return (err0, 0);
}
return subUInt(sum, c);
}
}
// contracts/compound/ErrorReporter.sol
contract ComptrollerErrorReporter {
enum Error {
NO_ERROR,
UNAUTHORIZED,
COMPTROLLER_MISMATCH,
INSUFFICIENT_SHORTFALL,
INSUFFICIENT_LIQUIDITY,
INVALID_CLOSE_FACTOR,
INVALID_COLLATERAL_FACTOR,
INVALID_LIQUIDATION_INCENTIVE,
MARKET_NOT_LISTED,
MARKET_ALREADY_LISTED,
MATH_ERROR,
NONZERO_BORROW_BALANCE,
PRICE_ERROR,
REJECTION,
SNAPSHOT_ERROR,
TOO_MANY_ASSETS,
TOO_MUCH_REPAY,
SUPPLIER_NOT_WHITELISTED,
BORROW_BELOW_MIN,
SUPPLY_ABOVE_MAX,
NONZERO_TOTAL_SUPPLY
}
enum FailureInfo {
ACCEPT_ADMIN_PENDING_ADMIN_CHECK,
ACCEPT_PENDING_IMPLEMENTATION_ADDRESS_CHECK,
ADD_REWARDS_DISTRIBUTOR_OWNER_CHECK,
EXIT_MARKET_BALANCE_OWED,
EXIT_MARKET_REJECTION,
TOGGLE_ADMIN_RIGHTS_OWNER_CHECK,
TOGGLE_AUTO_IMPLEMENTATIONS_ENABLED_OWNER_CHECK,
SET_CLOSE_FACTOR_OWNER_CHECK,
SET_CLOSE_FACTOR_VALIDATION,
SET_COLLATERAL_FACTOR_OWNER_CHECK,
SET_COLLATERAL_FACTOR_NO_EXISTS,
SET_COLLATERAL_FACTOR_VALIDATION,
SET_COLLATERAL_FACTOR_WITHOUT_PRICE,
SET_LIQUIDATION_INCENTIVE_OWNER_CHECK,
SET_LIQUIDATION_INCENTIVE_VALIDATION,
SET_PENDING_ADMIN_OWNER_CHECK,
SET_PENDING_IMPLEMENTATION_CONTRACT_CHECK,
SET_PENDING_IMPLEMENTATION_OWNER_CHECK,
SET_PRICE_ORACLE_OWNER_CHECK,
SET_WHITELIST_ENFORCEMENT_OWNER_CHECK,
SET_WHITELIST_STATUS_OWNER_CHECK,
SUPPORT_MARKET_EXISTS,
SUPPORT_MARKET_OWNER_CHECK,
SET_PAUSE_GUARDIAN_OWNER_CHECK,
UNSUPPORT_MARKET_OWNER_CHECK,
UNSUPPORT_MARKET_DOES_NOT_EXIST,
UNSUPPORT_MARKET_IN_USE
}
/**
* @dev `error` corresponds to enum Error; `info` corresponds to enum FailureInfo, and `detail` is an arbitrary
* contract-specific code that enables us to report opaque error codes from upgradeable contracts.
**/
event Failure(uint256 error, uint256 info, uint256 detail);
/**
* @dev use this when reporting a known error from the money market or a non-upgradeable collaborator
*/
function fail(Error err, FailureInfo info) internal returns (uint256) {
emit Failure(uint256(err), uint256(info), 0);
return uint256(err);
}
/**
* @dev use this when reporting an opaque error from an upgradeable collaborator contract
*/
function failOpaque(
Error err,
FailureInfo info,
uint256 opaqueError
) internal returns (uint256) {
emit Failure(uint256(err), uint256(info), opaqueError);
return uint256(err);
}
}
contract TokenErrorReporter {
enum Error {
NO_ERROR,
UNAUTHORIZED,
BAD_INPUT,
COMPTROLLER_REJECTION,
COMPTROLLER_CALCULATION_ERROR,
INTEREST_RATE_MODEL_ERROR,
INVALID_ACCOUNT_PAIR,
INVALID_CLOSE_AMOUNT_REQUESTED,
INVALID_COLLATERAL_FACTOR,
MATH_ERROR,
MARKET_NOT_FRESH,
MARKET_NOT_LISTED,
TOKEN_INSUFFICIENT_ALLOWANCE,
TOKEN_INSUFFICIENT_BALANCE,
TOKEN_INSUFFICIENT_CASH,
TOKEN_TRANSFER_IN_FAILED,
TOKEN_TRANSFER_OUT_FAILED,
UTILIZATION_ABOVE_MAX
}
/*
* Note: FailureInfo (but not Error) is kept in alphabetical order
* This is because FailureInfo grows significantly faster, and
* the order of Error has some meaning, while the order of FailureInfo
* is entirely arbitrary.
*/
enum FailureInfo {
ACCEPT_ADMIN_PENDING_ADMIN_CHECK,
ACCRUE_INTEREST_ACCUMULATED_INTEREST_CALCULATION_FAILED,
ACCRUE_INTEREST_BORROW_RATE_CALCULATION_FAILED,
ACCRUE_INTEREST_NEW_BORROW_INDEX_CALCULATION_FAILED,
ACCRUE_INTEREST_NEW_TOTAL_BORROWS_CALCULATION_FAILED,
ACCRUE_INTEREST_NEW_TOTAL_RESERVES_CALCULATION_FAILED,
ACCRUE_INTEREST_NEW_TOTAL_IONIC_FEES_CALCULATION_FAILED,
ACCRUE_INTEREST_NEW_TOTAL_ADMIN_FEES_CALCULATION_FAILED,
ACCRUE_INTEREST_SIMPLE_INTEREST_FACTOR_CALCULATION_FAILED,
BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED,
BORROW_ACCRUE_INTEREST_FAILED,
BORROW_CASH_NOT_AVAILABLE,
BORROW_FRESHNESS_CHECK,
BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED,
BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED,
BORROW_MARKET_NOT_LISTED,
BORROW_COMPTROLLER_REJECTION,
LIQUIDATE_ACCRUE_BORROW_INTEREST_FAILED,
LIQUIDATE_ACCRUE_COLLATERAL_INTEREST_FAILED,
LIQUIDATE_COLLATERAL_FRESHNESS_CHECK,
LIQUIDATE_COMPTROLLER_REJECTION,
LIQUIDATE_COMPTROLLER_CALCULATE_AMOUNT_SEIZE_FAILED,
LIQUIDATE_CLOSE_AMOUNT_IS_UINT_MAX,
LIQUIDATE_CLOSE_AMOUNT_IS_ZERO,
LIQUIDATE_FRESHNESS_CHECK,
LIQUIDATE_LIQUIDATOR_IS_BORROWER,
LIQUIDATE_REPAY_BORROW_FRESH_FAILED,
LIQUIDATE_SEIZE_BALANCE_INCREMENT_FAILED,
LIQUIDATE_SEIZE_BALANCE_DECREMENT_FAILED,
LIQUIDATE_SEIZE_COMPTROLLER_REJECTION,
LIQUIDATE_SEIZE_LIQUIDATOR_IS_BORROWER,
LIQUIDATE_SEIZE_TOO_MUCH,
MINT_ACCRUE_INTEREST_FAILED,
MINT_COMPTROLLER_REJECTION,
MINT_EXCHANGE_CALCULATION_FAILED,
MINT_EXCHANGE_RATE_READ_FAILED,
MINT_FRESHNESS_CHECK,
MINT_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED,
MINT_NEW_TOTAL_SUPPLY_CALCULATION_FAILED,
MINT_TRANSFER_IN_FAILED,
MINT_TRANSFER_IN_NOT_POSSIBLE,
NEW_UTILIZATION_RATE_ABOVE_MAX,
REDEEM_ACCRUE_INTEREST_FAILED,
REDEEM_COMPTROLLER_REJECTION,
REDEEM_EXCHANGE_TOKENS_CALCULATION_FAILED,
REDEEM_EXCHANGE_AMOUNT_CALCULATION_FAILED,
REDEEM_EXCHANGE_RATE_READ_FAILED,
REDEEM_FRESHNESS_CHECK,
REDEEM_NEW_ACCOUNT_BALANCE_CALCULATION_FAILED,
REDEEM_NEW_TOTAL_SUPPLY_CALCULATION_FAILED,
REDEEM_TRANSFER_OUT_NOT_POSSIBLE,
WITHDRAW_IONIC_FEES_ACCRUE_INTEREST_FAILED,
WITHDRAW_IONIC_FEES_CASH_NOT_AVAILABLE,
WITHDRAW_IONIC_FEES_FRESH_CHECK,
WITHDRAW_IONIC_FEES_VALIDATION,
WITHDRAW_ADMIN_FEES_ACCRUE_INTEREST_FAILED,
WITHDRAW_ADMIN_FEES_CASH_NOT_AVAILABLE,
WITHDRAW_ADMIN_FEES_FRESH_CHECK,
WITHDRAW_ADMIN_FEES_VALIDATION,
REDUCE_RESERVES_ACCRUE_INTEREST_FAILED,
REDUCE_RESERVES_ADMIN_CHECK,
REDUCE_RESERVES_CASH_NOT_AVAILABLE,
REDUCE_RESERVES_FRESH_CHECK,
REDUCE_RESERVES_VALIDATION,
REPAY_BEHALF_ACCRUE_INTEREST_FAILED,
REPAY_BORROW_ACCRUE_INTEREST_FAILED,
REPAY_BORROW_ACCUMULATED_BALANCE_CALCULATION_FAILED,
REPAY_BORROW_COMPTROLLER_REJECTION,
REPAY_BORROW_FRESHNESS_CHECK,
REPAY_BORROW_NEW_ACCOUNT_BORROW_BALANCE_CALCULATION_FAILED,
REPAY_BORROW_NEW_TOTAL_BALANCE_CALCULATION_FAILED,
REPAY_BORROW_TRANSFER_IN_NOT_POSSIBLE,
SET_COLLATERAL_FACTOR_OWNER_CHECK,
SET_COLLATERAL_FACTOR_VALIDATION,
SET_COMPTROLLER_OWNER_CHECK,
SET_INTEREST_RATE_MODEL_ACCRUE_INTEREST_FAILED,
SET_INTEREST_RATE_MODEL_FRESH_CHECK,
SET_INTEREST_RATE_MODEL_OWNER_CHECK,
TOGGLE_ADMIN_RIGHTS_OWNER_CHECK,
SET_PENDING_ADMIN_OWNER_CHECK,
SET_ADMIN_FEE_ACCRUE_INTEREST_FAILED,
SET_ADMIN_FEE_ADMIN_CHECK,
SET_ADMIN_FEE_FRESH_CHECK,
SET_ADMIN_FEE_BOUNDS_CHECK,
SET_IONIC_FEE_ACCRUE_INTEREST_FAILED,
SET_IONIC_FEE_FRESH_CHECK,
SET_IONIC_FEE_BOUNDS_CHECK,
SET_RESERVE_FACTOR_ACCRUE_INTEREST_FAILED,
SET_RESERVE_FACTOR_ADMIN_CHECK,
SET_RESERVE_FACTOR_FRESH_CHECK,
SET_RESERVE_FACTOR_BOUNDS_CHECK,
TRANSFER_COMPTROLLER_REJECTION,
TRANSFER_NOT_ALLOWED,
TRANSFER_NOT_ENOUGH,
TRANSFER_TOO_MUCH,
ADD_RESERVES_ACCRUE_INTEREST_FAILED,
ADD_RESERVES_FRESH_CHECK,
ADD_RESERVES_TRANSFER_IN_NOT_POSSIBLE
}
/**
* @dev `error` corresponds to enum Error; `info` corresponds to enum FailureInfo, and `detail` is an arbitrary
* contract-specific code that enables us to report opaque error codes from upgradeable contracts.
**/
event Failure(uint256 error, uint256 info, uint256 detail);
/**
* @dev use this when reporting a known error from the money market or a non-upgradeable collaborator
*/
function fail(Error err, FailureInfo info) internal returns (uint256) {
emit Failure(uint256(err), uint256(info), 0);
return uint256(err);
}
/**
* @dev use this when reporting an opaque error from an upgradeable collaborator contract
*/
function failOpaque(
Error err,
FailureInfo info,
uint256 opaqueError
) internal returns (uint256) {
emit Failure(uint256(err), uint256(info), opaqueError);
return err == Error.COMPTROLLER_REJECTION ? 1000 + opaqueError : uint256(err);
}
}
// contracts/compound/ExponentialNoError.sol
/**
* @title Exponential module for storing fixed-precision decimals
* @author Compound
* @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.
* Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:
* `Exp({mantissa: 5100000000000000000})`.
*/
contract ExponentialNoError {
uint256 constant expScale = 1e18;
uint256 constant doubleScale = 1e36;
uint256 constant halfExpScale = expScale / 2;
uint256 constant mantissaOne = expScale;
struct Exp {
uint256 mantissa;
}
struct Double {
uint256 mantissa;
}
/**
* @dev Truncates the given exp to a whole number value.
* For example, truncate(Exp{mantissa: 15 * expScale}) = 15
*/
function truncate(Exp memory exp) internal pure returns (uint256) {
// Note: We are not using careful math here as we're performing a division that cannot fail
return exp.mantissa / expScale;
}
/**
* @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.
*/
function mul_ScalarTruncate(Exp memory a, uint256 scalar) internal pure returns (uint256) {
Exp memory product = mul_(a, scalar);
return truncate(product);
}
/**
* @dev Multiply an Exp by a scalar, truncate, then add an to an unsigned integer, returning an unsigned integer.
*/
function mul_ScalarTruncateAddUInt(
Exp memory a,
uint256 scalar,
uint256 addend
) internal pure returns (uint256) {
Exp memory product = mul_(a, scalar);
return add_(truncate(product), addend);
}
/**
* @dev Checks if first Exp is less than second Exp.
*/
function lessThanExp(Exp memory left, Exp memory right) internal pure returns (bool) {
return left.mantissa < right.mantissa;
}
/**
* @dev Checks if left Exp <= right Exp.
*/
function lessThanOrEqualExp(Exp memory left, Exp memory right) internal pure returns (bool) {
return left.mantissa <= right.mantissa;
}
/**
* @dev Checks if left Exp > right Exp.
*/
function greaterThanExp(Exp memory left, Exp memory right) internal pure returns (bool) {
return left.mantissa > right.mantissa;
}
/**
* @dev returns true if Exp is exactly zero
*/
function isZeroExp(Exp memory value) internal pure returns (bool) {
return value.mantissa == 0;
}
function safe224(uint256 n, string memory errorMessage) internal pure returns (uint224) {
require(n < 2**224, errorMessage);
return uint224(n);
}
function safe32(uint256 n, string memory errorMessage) internal pure returns (uint32) {
require(n < 2**32, errorMessage);
return uint32(n);
}
function add_(Exp memory a, Exp memory b) internal pure returns (Exp memory) {
return Exp({ mantissa: add_(a.mantissa, b.mantissa) });
}
function add_(Double memory a, Double memory b) internal pure returns (Double memory) {
return Double({ mantissa: add_(a.mantissa, b.mantissa) });
}
function add_(uint256 a, uint256 b) internal pure returns (uint256) {
return add_(a, b, "addition overflow");
}
function add_(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, errorMessage);
return c;
}
function sub_(Exp memory a, Exp memory b) internal pure returns (Exp memory) {
return Exp({ mantissa: sub_(a.mantissa, b.mantissa) });
}
function sub_(Double memory a, Double memory b) internal pure returns (Double memory) {
return Double({ mantissa: sub_(a.mantissa, b.mantissa) });
}
function sub_(uint256 a, uint256 b) internal pure returns (uint256) {
return sub_(a, b, "subtraction underflow");
}
function sub_(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
function mul_(Exp memory a, Exp memory b) internal pure returns (Exp memory) {
return Exp({ mantissa: mul_(a.mantissa, b.mantissa) / expScale });
}
function mul_(Exp memory a, uint256 b) internal pure returns (Exp memory) {
return Exp({ mantissa: mul_(a.mantissa, b) });
}
function mul_(uint256 a, Exp memory b) internal pure returns (uint256) {
return mul_(a, b.mantissa) / expScale;
}
function mul_(Double memory a, Double memory b) internal pure returns (Double memory) {
return Double({ mantissa: mul_(a.mantissa, b.mantissa) / doubleScale });
}
function mul_(Double memory a, uint256 b) internal pure returns (Double memory) {
return Double({ mantissa: mul_(a.mantissa, b) });
}
function mul_(uint256 a, Double memory b) internal pure returns (uint256) {
return mul_(a, b.mantissa) / doubleScale;
}
function mul_(uint256 a, uint256 b) internal pure returns (uint256) {
return mul_(a, b, "multiplication overflow");
}
function mul_(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
if (a == 0 || b == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, errorMessage);
return c;
}
function div_(Exp memory a, Exp memory b) internal pure returns (Exp memory) {
return Exp({ mantissa: div_(mul_(a.mantissa, expScale), b.mantissa) });
}
function div_(Exp memory a, uint256 b) internal pure returns (Exp memory) {
return Exp({ mantissa: div_(a.mantissa, b) });
}
function div_(uint256 a, Exp memory b) internal pure returns (uint256) {
return div_(mul_(a, expScale), b.mantissa);
}
function div_(Double memory a, Double memory b) internal pure returns (Double memory) {
return Double({ mantissa: div_(mul_(a.mantissa, doubleScale), b.mantissa) });
}
function div_(Double memory a, uint256 b) internal pure returns (Double memory) {
return Double({ mantissa: div_(a.mantissa, b) });
}
function div_(uint256 a, Double memory b) internal pure returns (uint256) {
return div_(mul_(a, doubleScale), b.mantissa);
}
function div_(uint256 a, uint256 b) internal pure returns (uint256) {
return div_(a, b, "divide by zero");
}
function div_(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
function fraction(uint256 a, uint256 b) internal pure returns (Double memory) {
return Double({ mantissa: div_(mul_(a, doubleScale), b) });
}
}
// contracts/compound/InterestRateModel.sol
/**
* @title Compound's InterestRateModel Interface
* @author Compound
*/
abstract contract InterestRateModel {
/// @notice Indicator that this is an InterestRateModel contract (for inspection)
bool public constant isInterestRateModel = true;
/**
* @notice Calculates the current borrow interest rate per block
* @param cash The total amount of cash the market has
* @param borrows The total amount of borrows the market has outstanding
* @param reserves The total amount of reserves the market has
* @return The borrow rate per block (as a percentage, and scaled by 1e18)
*/
function getBorrowRate(
uint256 cash,
uint256 borrows,
uint256 reserves
) public view virtual returns (uint256);
/**
* @notice Calculates the current supply interest rate per block
* @param cash The total amount of cash the market has
* @param borrows The total amount of borrows the market has outstanding
* @param reserves The total amount of reserves the market has
* @param reserveFactorMantissa The current reserve factor the market has
* @return The supply rate per block (as a percentage, and scaled by 1e18)
*/
function getSupplyRate(
uint256 cash,
uint256 borrows,
uint256 reserves,
uint256 reserveFactorMantissa
) public view virtual returns (uint256);
}
// contracts/ionic/DiamondExtension.sol
/**
* @notice a base contract for logic extensions that use the diamond pattern storage
* to map the functions when looking up the extension contract to delegate to.
*/
abstract contract DiamondExtension {
/**
* @return a list of all the function selectors that this logic extension exposes
*/
function _getExtensionFunctions() external pure virtual returns (bytes4[] memory);
}
// When no function exists for function called
error FunctionNotFound(bytes4 _functionSelector);
// When no extension exists for function called
error ExtensionNotFound(bytes4 _functionSelector);
// When the function is already added
error FunctionAlreadyAdded(bytes4 _functionSelector, address _currentImpl);
abstract contract DiamondBase {
/**
* @dev register a logic extension
* @param extensionToAdd the extension whose functions are to be added
* @param extensionToReplace the extension whose functions are to be removed/replaced
*/
function _registerExtension(DiamondExtension extensionToAdd, DiamondExtension extensionToReplace) external virtual;
function _listExtensions() public view returns (address[] memory) {
return LibDiamond.listExtensions();
}
fallback() external {
address extension = LibDiamond.getExtensionForFunction(msg.sig);
if (extension == address(0)) revert FunctionNotFound(msg.sig);
// Execute external function from extension using delegatecall and return any value.
assembly {
// copy function selector and any arguments
calldatacopy(0, 0, calldatasize())
// execute function call using the extension
let result := delegatecall(gas(), extension, 0, calldatasize(), 0, 0)
// get any return value
returndatacopy(0, 0, returndatasize())
// return any return value or error back to the caller
switch result
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
}
/**
* @notice a library to use in a contract, whose logic is extended with diamond extension
*/
library LibDiamond {
bytes32 constant DIAMOND_STORAGE_POSITION = keccak256("diamond.extensions.diamond.storage");
struct Function {
address extension;
bytes4 selector;
}
struct LogicStorage {
Function[] functions;
address[] extensions;
}
function getExtensionForFunction(bytes4 msgSig) internal view returns (address) {
return getExtensionForSelector(msgSig, diamondStorage());
}
function diamondStorage() internal pure returns (LogicStorage storage ds) {
bytes32 position = DIAMOND_STORAGE_POSITION;
assembly {
ds.slot := position
}
}
function listExtensions() internal view returns (address[] memory) {
return diamondStorage().extensions;
}
function registerExtension(DiamondExtension extensionToAdd, DiamondExtension extensionToReplace) internal {
if (address(extensionToReplace) != address(0)) {
removeExtension(extensionToReplace);
}
addExtension(extensionToAdd);
}
function removeExtension(DiamondExtension extension) internal {
LogicStorage storage ds = diamondStorage();
// remove all functions of the extension to replace
removeExtensionFunctions(extension);
for (uint8 i = 0; i < ds.extensions.length; i++) {
if (ds.extensions[i] == address(extension)) {
ds.extensions[i] = ds.extensions[ds.extensions.length - 1];
ds.extensions.pop();
}
}
}
function addExtension(DiamondExtension extension) internal {
LogicStorage storage ds = diamondStorage();
for (uint8 i = 0; i < ds.extensions.length; i++) {
require(ds.extensions[i] != address(extension), "extension already added");
}
addExtensionFunctions(extension);
ds.extensions.push(address(extension));
}
function removeExtensionFunctions(DiamondExtension extension) internal {
bytes4[] memory fnsToRemove = extension._getExtensionFunctions();
LogicStorage storage ds = diamondStorage();
for (uint16 i = 0; i < fnsToRemove.length; i++) {
bytes4 selectorToRemove = fnsToRemove[i];
// must never fail
assert(address(extension) == getExtensionForSelector(selectorToRemove, ds));
// swap with the last element in the selectorAtIndex array and remove the last element
uint16 indexToKeep = getIndexForSelector(selectorToRemove, ds);
ds.functions[indexToKeep] = ds.functions[ds.functions.length - 1];
ds.functions.pop();
}
}
function addExtensionFunctions(DiamondExtension extension) internal {
bytes4[] memory fnsToAdd = extension._getExtensionFunctions();
LogicStorage storage ds = diamondStorage();
uint16 functionsCount = uint16(ds.functions.length);
for (uint256 functionsIndex = 0; functionsIndex < fnsToAdd.length; functionsIndex++) {
bytes4 selector = fnsToAdd[functionsIndex];
address oldImplementation = getExtensionForSelector(selector, ds);
if (oldImplementation != address(0)) revert FunctionAlreadyAdded(selector, oldImplementation);
ds.functions.push(Function(address(extension), selector));
functionsCount++;
}
}
function getExtensionForSelector(bytes4 selector, LogicStorage storage ds) internal view returns (address) {
uint256 fnsLen = ds.functions.length;
for (uint256 i = 0; i < fnsLen; i++) {
if (ds.functions[i].selector == selector) return ds.functions[i].extension;
}
return address(0);
}
function getIndexForSelector(bytes4 selector, LogicStorage storage ds) internal view returns (uint16) {
uint16 fnsLen = uint16(ds.functions.length);
for (uint16 i = 0; i < fnsLen; i++) {
if (ds.functions[i].selector == selector) return i;
}
return type(uint16).max;
}
}
// lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
/**
* @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822Proxiable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}
// lib/openzeppelin-contracts/contracts/proxy/Proxy.sol
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback() external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive() external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overridden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {}
}
// lib/openzeppelin-contracts/contracts/proxy/beacon/IBeacon.sol
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function implementation() external view returns (address);
}
// lib/openzeppelin-contracts/contracts/utils/Address.sol
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// lib/openzeppelin-contracts/contracts/utils/StorageSlot.sol
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
}
// lib/openzeppelin-contracts/contracts/utils/structs/EnumerableSet.sol
// OpenZeppelin Contracts (last updated v4.7.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
/**
* @dev Library for managing
* https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
* types.
*
* Sets have the following properties:
*
* - Elements are added, removed, and checked for existence in constant time
* (O(1)).
* - Elements are enumerated in O(n). No guarantees are made on the ordering.
*
* ```
* contract Example {
* // Add the library methods
* using EnumerableSet for EnumerableSet.AddressSet;
*
* // Declare a set state variable
* EnumerableSet.AddressSet private mySet;
* }
* ```
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
* unusable.
* See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
*
* In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
* array of EnumerableSet.
* ====
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Set type with
// bytes32 values.
// The Set implementation uses private functions, and user-facing
// implementations (such as AddressSet) are just wrappers around the
// underlying Set.
// This means that we can only create new EnumerableSets for types that fit
// in bytes32.
struct Set {
// Storage of set values
bytes32[] _values;
// Position of the value in the `values` array, plus 1 because index 0
// means a value is not in the set.
mapping(bytes32 => uint256) _indexes;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function _add(Set storage set, bytes32 value) private returns (bool) {
if (!_contains(set, value)) {
set._values.push(value);
// The value is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
set._indexes[value] = set._values.length;
return true;
} else {
return false;
}
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function _remove(Set storage set, bytes32 value) private returns (bool) {
// We read and store the value's index to prevent multiple reads from the same storage slot
uint256 valueIndex = set._indexes[value];
if (valueIndex != 0) {
// Equivalent to contains(set, value)
// To delete an element from the _values array in O(1), we swap the element to delete with the last one in
// the array, and then remove the last element (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 toDeleteIndex = valueIndex - 1;
uint256 lastIndex = set._values.length - 1;
if (lastIndex != toDeleteIndex) {
bytes32 lastValue = set._values[lastIndex];
// Move the last value to the index where the value to delete is
set._values[toDeleteIndex] = lastValue;
// Update the index for the moved value
set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
}
// Delete the slot where the moved value was stored
set._values.pop();
// Delete the index for the deleted slot
delete set._indexes[value];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function _contains(Set storage set, bytes32 value) private view returns (bool) {
return set._indexes[value] != 0;
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function _length(Set storage set) private view returns (uint256) {
return set._values.length;
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Set storage set, uint256 index) private view returns (bytes32) {
return set._values[index];
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function _values(Set storage set) private view returns (bytes32[] memory) {
return set._values;
}
// Bytes32Set
struct Bytes32Set {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _add(set._inner, value);
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _remove(set._inner, value);
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
return _contains(set._inner, value);
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(Bytes32Set storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
return _at(set._inner, index);
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
bytes32[] memory store = _values(set._inner);
bytes32[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// AddressSet
struct AddressSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(AddressSet storage set, address value) internal returns (bool) {
return _add(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(AddressSet storage set, address value) internal returns (bool) {
return _remove(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(AddressSet storage set, address value) internal view returns (bool) {
return _contains(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(AddressSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressSet storage set, uint256 index) internal view returns (address) {
return address(uint160(uint256(_at(set._inner, index))));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(AddressSet storage set) internal view returns (address[] memory) {
bytes32[] memory store = _values(set._inner);
address[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// UintSet
struct UintSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(UintSet storage set, uint256 value) internal returns (bool) {
return _add(set._inner, bytes32(value));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(UintSet storage set, uint256 value) internal returns (bool) {
return _remove(set._inner, bytes32(value));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(UintSet storage set, uint256 value) internal view returns (bool) {
return _contains(set._inner, bytes32(value));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(UintSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintSet storage set, uint256 index) internal view returns (uint256) {
return uint256(_at(set._inner, index));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(UintSet storage set) internal view returns (uint256[] memory) {
bytes32[] memory store = _values(set._inner);
uint256[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
}
// lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// lib/solmate/src/auth/Auth.sol
/// @notice Provides a flexible and updatable auth pattern which is completely separate from application logic.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Auth.sol)
/// @author Modified from Dappsys (https://github.com/dapphub/ds-auth/blob/master/src/auth.sol)
abstract contract Auth {
event OwnerUpdated(address indexed user, address indexed newOwner);
event AuthorityUpdated(address indexed user, Authority indexed newAuthority);
address public owner;
Authority public authority;
constructor(address _owner, Authority _authority) {
owner = _owner;
authority = _authority;
emit OwnerUpdated(msg.sender, _owner);
emit AuthorityUpdated(msg.sender, _authority);
}
modifier requiresAuth() virtual {
require(isAuthorized(msg.sender, msg.sig), "UNAUTHORIZED");
_;
}
function isAuthorized(address user, bytes4 functionSig) internal view virtual returns (bool) {
Authority auth = authority; // Memoizing authority saves us a warm SLOAD, around 100 gas.
// Checking if the caller is the owner only after calling the authority saves gas in most cases, but be
// aware that this makes protected functions uncallable even to the owner if the authority is out of order.
return (address(auth) != address(0) && auth.canCall(user, address(this), functionSig)) || user == owner;
}
function setAuthority(Authority newAuthority) public virtual {
// We check if the caller is the owner first because we want to ensure they can
// always swap out the authority even if it's reverting or using up a lot of gas.
require(msg.sender == owner || authority.canCall(msg.sender, address(this), msg.sig));
authority = newAuthority;
emit AuthorityUpdated(msg.sender, newAuthority);
}
function setOwner(address newOwner) public virtual requiresAuth {
owner = newOwner;
emit OwnerUpdated(msg.sender, newOwner);
}
}
/// @notice A generic interface for a contract which provides authorization data to an Auth instance.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Auth.sol)
/// @author Modified from Dappsys (https://github.com/dapphub/ds-auth/blob/master/src/auth.sol)
interface Authority {
function canCall(
address user,
address target,
bytes4 functionSig
) external view returns (bool);
}
// lib/solmate/src/tokens/ERC20.sol
/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
/*//////////////////////////////////////////////////////////////
EVENTS
//////////////////////////////////////////////////////////////*/
event Transfer(address indexed from, address indexed to, uint256 amount);
event Approval(address indexed owner, address indexed spender, uint256 amount);
/*//////////////////////////////////////////////////////////////
METADATA STORAGE
//////////////////////////////////////////////////////////////*/
string public name;
string public symbol;
uint8 public immutable decimals;
/*//////////////////////////////////////////////////////////////
ERC20 STORAGE
//////////////////////////////////////////////////////////////*/
uint256 public totalSupply;
mapping(address => uint256) public balanceOf;
mapping(address => mapping(address => uint256)) public allowance;
/*//////////////////////////////////////////////////////////////
EIP-2612 STORAGE
//////////////////////////////////////////////////////////////*/
uint256 internal immutable INITIAL_CHAIN_ID;
bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;
mapping(address => uint256) public nonces;
/*//////////////////////////////////////////////////////////////
CONSTRUCTOR
//////////////////////////////////////////////////////////////*/
constructor(
string memory _name,
string memory _symbol,
uint8 _decimals
) {
name = _name;
symbol = _symbol;
decimals = _decimals;
INITIAL_CHAIN_ID = block.chainid;
INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
}
/*//////////////////////////////////////////////////////////////
ERC20 LOGIC
//////////////////////////////////////////////////////////////*/
function approve(address spender, uint256 amount) public virtual returns (bool) {
allowance[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function transfer(address to, uint256 amount) public virtual returns (bool) {
balanceOf[msg.sender] -= amount;
// Cannot overflow because the sum of all user
// balances can't exceed the max uint256 value.
unchecked {
balanceOf[to] += amount;
}
emit Transfer(msg.sender, to, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual returns (bool) {
uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.
if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;
balanceOf[from] -= amount;
// Cannot overflow because the sum of all user
// balances can't exceed the max uint256 value.
unchecked {
balanceOf[to] += amount;
}
emit Transfer(from, to, amount);
return true;
}
/*//////////////////////////////////////////////////////////////
EIP-2612 LOGIC
//////////////////////////////////////////////////////////////*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) public virtual {
require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");
// Unchecked because the only math done is incrementing
// the owner's nonce which cannot realistically overflow.
unchecked {
address recoveredAddress = ecrecover(
keccak256(
abi.encodePacked(
"\x19\x01",
DOMAIN_SEPARATOR(),
keccak256(
abi.encode(
keccak256(
"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
),
owner,
spender,
value,
nonces[owner]++,
deadline
)
)
)
),
v,
r,
s
);
require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");
allowance[recoveredAddress][spender] = value;
}
emit Approval(owner, spender, value);
}
function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
}
function computeDomainSeparator() internal view virtual returns (bytes32) {
return
keccak256(
abi.encode(
keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
keccak256(bytes(name)),
keccak256("1"),
block.chainid,
address(this)
)
);
}
/*//////////////////////////////////////////////////////////////
INTERNAL MINT/BURN LOGIC
//////////////////////////////////////////////////////////////*/
function _mint(address to, uint256 amount) internal virtual {
totalSupply += amount;
// Cannot overflow because the sum of all user
// balances can't exceed the max uint256 value.
unchecked {
balanceOf[to] += amount;
}
emit Transfer(address(0), to, amount);
}
function _burn(address from, uint256 amount) internal virtual {
balanceOf[from] -= amount;
// Cannot underflow because a user's balance
// will never be larger than the total supply.
unchecked {
totalSupply -= amount;
}
emit Transfer(from, address(0), amount);
}
}
// contracts/ionic/strategies/flywheel/IIonicFlywheel.sol
interface IIonicFlywheel {
function isRewardsDistributor() external returns (bool);
function isFlywheel() external returns (bool);
function flywheelPreSupplierAction(address market, address supplier) external;
function flywheelPreBorrowerAction(address market, address borrower) external;
function flywheelPreTransferAction(address market, address src, address dst) external;
function compAccrued(address user) external view returns (uint256);
function addMarketForRewards(ERC20 strategy) external;
function marketState(ERC20 strategy) external view returns (uint224 index, uint32 lastUpdatedTimestamp);
}
// lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Internal function that returns the initialized version. Returns `_initialized`
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Internal function that returns the initialized version. Returns `_initializing`
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// lib/solmate/src/auth/authorities/RolesAuthority.sol
/// @notice Role based Authority that supports up to 256 roles.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/authorities/RolesAuthority.sol)
/// @author Modified from Dappsys (https://github.com/dapphub/ds-roles/blob/master/src/roles.sol)
contract RolesAuthority is Auth, Authority {
/*//////////////////////////////////////////////////////////////
EVENTS
//////////////////////////////////////////////////////////////*/
event UserRoleUpdated(address indexed user, uint8 indexed role, bool enabled);
event PublicCapabilityUpdated(address indexed target, bytes4 indexed functionSig, bool enabled);
event RoleCapabilityUpdated(uint8 indexed role, address indexed target, bytes4 indexed functionSig, bool enabled);
/*//////////////////////////////////////////////////////////////
CONSTRUCTOR
//////////////////////////////////////////////////////////////*/
constructor(address _owner, Authority _authority) Auth(_owner, _authority) {}
/*//////////////////////////////////////////////////////////////
ROLE/USER STORAGE
//////////////////////////////////////////////////////////////*/
mapping(address => bytes32) public getUserRoles;
mapping(address => mapping(bytes4 => bool)) public isCapabilityPublic;
mapping(address => mapping(bytes4 => bytes32)) public getRolesWithCapability;
function doesUserHaveRole(address user, uint8 role) public view virtual returns (bool) {
return (uint256(getUserRoles[user]) >> role) & 1 != 0;
}
function doesRoleHaveCapability(
uint8 role,
address target,
bytes4 functionSig
) public view virtual returns (bool) {
return (uint256(getRolesWithCapability[target][functionSig]) >> role) & 1 != 0;
}
/*//////////////////////////////////////////////////////////////
AUTHORIZATION LOGIC
//////////////////////////////////////////////////////////////*/
function canCall(
address user,
address target,
bytes4 functionSig
) public view virtual override returns (bool) {
return
isCapabilityPublic[target][functionSig] ||
bytes32(0) != getUserRoles[user] & getRolesWithCapability[target][functionSig];
}
/*//////////////////////////////////////////////////////////////
ROLE CAPABILITY CONFIGURATION LOGIC
//////////////////////////////////////////////////////////////*/
function setPublicCapability(
address target,
bytes4 functionSig,
bool enabled
) public virtual requiresAuth {
isCapabilityPublic[target][functionSig] = enabled;
emit PublicCapabilityUpdated(target, functionSig, enabled);
}
function setRoleCapability(
uint8 role,
address target,
bytes4 functionSig,
bool enabled
) public virtual requiresAuth {
if (enabled) {
getRolesWithCapability[target][functionSig] |= bytes32(1 << role);
} else {
getRolesWithCapability[target][functionSig] &= ~bytes32(1 << role);
}
emit RoleCapabilityUpdated(role, target, functionSig, enabled);
}
/*//////////////////////////////////////////////////////////////
USER ROLE ASSIGNMENT LOGIC
//////////////////////////////////////////////////////////////*/
function setUserRole(
address user,
uint8 role,
bool enabled
) public virtual requiresAuth {
if (enabled) {
getUserRoles[user] |= bytes32(1 << role);
} else {
getUserRoles[user] &= ~bytes32(1 << role);
}
emit UserRoleUpdated(user, role, enabled);
}
}
// contracts/compound/Exponential.sol
/**
* @title Exponential module for storing fixed-precision decimals
* @author Compound
* @dev Legacy contract for compatibility reasons with existing contracts that still use MathError
* @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.
* Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:
* `Exp({mantissa: 5100000000000000000})`.
*/
contract Exponential is CarefulMath, ExponentialNoError {
/**
* @dev Creates an exponential from numerator and denominator values.
* Note: Returns an error if (`num` * 10e18) > MAX_INT,
* or if `denom` is zero.
*/
function getExp(uint256 num, uint256 denom) internal pure returns (MathError, Exp memory) {
(MathError err0, uint256 scaledNumerator) = mulUInt(num, expScale);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({ mantissa: 0 }));
}
(MathError err1, uint256 rational) = divUInt(scaledNumerator, denom);
if (err1 != MathError.NO_ERROR) {
return (err1, Exp({ mantissa: 0 }));
}
return (MathError.NO_ERROR, Exp({ mantissa: rational }));
}
/**
* @dev Adds two exponentials, returning a new exponential.
*/
function addExp(Exp memory a, Exp memory b) internal pure returns (MathError, Exp memory) {
(MathError error, uint256 result) = addUInt(a.mantissa, b.mantissa);
return (error, Exp({ mantissa: result }));
}
/**
* @dev Subtracts two exponentials, returning a new exponential.
*/
function subExp(Exp memory a, Exp memory b) internal pure returns (MathError, Exp memory) {
(MathError error, uint256 result) = subUInt(a.mantissa, b.mantissa);
return (error, Exp({ mantissa: result }));
}
/**
* @dev Multiply an Exp by a scalar, returning a new Exp.
*/
function mulScalar(Exp memory a, uint256 scalar) internal pure returns (MathError, Exp memory) {
(MathError err0, uint256 scaledMantissa) = mulUInt(a.mantissa, scalar);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({ mantissa: 0 }));
}
return (MathError.NO_ERROR, Exp({ mantissa: scaledMantissa }));
}
/**
* @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.
*/
function mulScalarTruncate(Exp memory a, uint256 scalar) internal pure returns (MathError, uint256) {
(MathError err, Exp memory product) = mulScalar(a, scalar);
if (err != MathError.NO_ERROR) {
return (err, 0);
}
return (MathError.NO_ERROR, truncate(product));
}
/**
* @dev Divide an Exp by a scalar, returning a new Exp.
*/
function divScalar(Exp memory a, uint256 scalar) internal pure returns (MathError, Exp memory) {
(MathError err0, uint256 descaledMantissa) = divUInt(a.mantissa, scalar);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({ mantissa: 0 }));
}
return (MathError.NO_ERROR, Exp({ mantissa: descaledMantissa }));
}
/**
* @dev Divide a scalar by an Exp, returning a new Exp.
*/
function divScalarByExp(uint256 scalar, Exp memory divisor) internal pure returns (MathError, Exp memory) {
/*
We are doing this as:
getExp(mulUInt(expScale, scalar), divisor.mantissa)
How it works:
Exp = a / b;
Scalar = s;
`s / (a / b)` = `b * s / a` and since for an Exp `a = mantissa, b = expScale`
*/
(MathError err0, uint256 numerator) = mulUInt(expScale, scalar);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({ mantissa: 0 }));
}
return getExp(numerator, divisor.mantissa);
}
/**
* @dev Divide a scalar by an Exp, then truncate to return an unsigned integer.
*/
function divScalarByExpTruncate(uint256 scalar, Exp memory divisor) internal pure returns (MathError, uint256) {
(MathError err, Exp memory fraction) = divScalarByExp(scalar, divisor);
if (err != MathError.NO_ERROR) {
return (err, 0);
}
return (MathError.NO_ERROR, truncate(fraction));
}
/**
* @dev Multiplies two exponentials, returning a new exponential.
*/
function mulExp(Exp memory a, Exp memory b) internal pure returns (MathError, Exp memory) {
(MathError err0, uint256 doubleScaledProduct) = mulUInt(a.mantissa, b.mantissa);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({ mantissa: 0 }));
}
// We add half the scale before dividing so that we get rounding instead of truncation.
// See "Listing 6" and text above it at https://accu.org/index.php/journals/1717
// Without this change, a result like 6.6...e-19 will be truncated to 0 instead of being rounded to 1e-18.
(MathError err1, uint256 doubleScaledProductWithHalfScale) = addUInt(halfExpScale, doubleScaledProduct);
if (err1 != MathError.NO_ERROR) {
return (err1, Exp({ mantissa: 0 }));
}
(MathError err2, uint256 product) = divUInt(doubleScaledProductWithHalfScale, expScale);
// The only error `div` can return is MathError.DIVISION_BY_ZERO but we control `expScale` and it is not zero.
assert(err2 == MathError.NO_ERROR);
return (MathError.NO_ERROR, Exp({ mantissa: product }));
}
/**
* @dev Multiplies two exponentials given their mantissas, returning a new exponential.
*/
function mulExp(uint256 a, uint256 b) internal pure returns (MathError, Exp memory) {
return mulExp(Exp({ mantissa: a }), Exp({ mantissa: b }));
}
/**
* @dev Multiplies three exponentials, returning a new exponential.
*/
function mulExp3(
Exp memory a,
Exp memory b,
Exp memory c
) internal pure returns (MathError, Exp memory) {
(MathError err, Exp memory ab) = mulExp(a, b);
if (err != MathError.NO_ERROR) {
return (err, ab);
}
return mulExp(ab, c);
}
/**
* @dev Divides two exponentials, returning a new exponential.
* (a/scale) / (b/scale) = (a/scale) * (scale/b) = a/b,
* which we can scale as an Exp by calling getExp(a.mantissa, b.mantissa)
*/
function divExp(Exp memory a, Exp memory b) internal pure returns (MathError, Exp memory) {
return getExp(a.mantissa, b.mantissa);
}
}
// lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// lib/openzeppelin-contracts-upgradeable/contracts/access/OwnableUpgradeable.sol
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
function __Ownable_init() internal onlyInitializing {
__Ownable_init_unchained();
}
function __Ownable_init_unchained() internal onlyInitializing {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// contracts/ionic/SafeOwnableUpgradeable.sol
/**
* @dev Ownable extension that requires a two-step process of setting the pending owner and the owner accepting it.
* @notice Existing OwnableUpgradeable contracts cannot be upgraded due to the extra storage variable
* that will shift the other.
*/
abstract contract SafeOwnableUpgradeable is OwnableUpgradeable {
/**
* @notice Pending owner of this contract
*/
address public pendingOwner;
function __SafeOwnable_init(address owner_) internal onlyInitializing {
__Ownable_init();
_transferOwnership(owner_);
}
struct AddressSlot {
address value;
}
modifier onlyOwnerOrAdmin() {
bool isOwner = owner() == _msgSender();
if (!isOwner) {
address admin = _getProxyAdmin();
bool isAdmin = admin == _msgSender();
require(isAdmin, "Ownable: caller is neither the owner nor the admin");
}
_;
}
/**
* @notice Emitted when pendingOwner is changed
*/
event NewPendingOwner(address oldPendingOwner, address newPendingOwner);
/**
* @notice Emitted when pendingOwner is accepted, which means owner is updated
*/
event NewOwner(address oldOwner, address newOwner);
/**
* @notice Begins transfer of owner rights. The newPendingOwner must call `_acceptOwner` to finalize the transfer.
* @dev Owner function to begin change of owner. The newPendingOwner must call `_acceptOwner` to finalize the transfer.
* @param newPendingOwner New pending owner.
*/
function _setPendingOwner(address newPendingOwner) public onlyOwner {
// Save current value, if any, for inclusion in log
address oldPendingOwner = pendingOwner;
// Store pendingOwner with value newPendingOwner
pendingOwner = newPendingOwner;
// Emit NewPendingOwner(oldPendingOwner, newPendingOwner)
emit NewPendingOwner(oldPendingOwner, newPendingOwner);
}
/**
* @notice Accepts transfer of owner rights. msg.sender must be pendingOwner
* @dev Owner function for pending owner to accept role and update owner
*/
function _acceptOwner() public {
// Check caller is pendingOwner and pendingOwner ≠ address(0)
require(msg.sender == pendingOwner, "not the pending owner");
// Save current values for inclusion in log
address oldOwner = owner();
address oldPendingOwner = pendingOwner;
// Store owner with value pendingOwner
_transferOwnership(pendingOwner);
// Clear the pending value
pendingOwner = address(0);
emit NewOwner(oldOwner, pendingOwner);
emit NewPendingOwner(oldPendingOwner, pendingOwner);
}
function renounceOwnership() public override onlyOwner {
// do not remove this overriding fn
revert("not used anymore");
}
function transferOwnership(address newOwner) public override onlyOwner {
emit NewPendingOwner(pendingOwner, newOwner);
pendingOwner = newOwner;
}
function _getProxyAdmin() internal view returns (address admin) {
bytes32 _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
AddressSlot storage adminSlot;
assembly {
adminSlot.slot := _ADMIN_SLOT
}
admin = adminSlot.value;
}
}
// lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)
/**
* @dev This abstract contract provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
*
* _Available since v4.1._
*
* @custom:oz-upgrades-unsafe-allow delegatecall
*/
abstract contract ERC1967Upgrade {
// This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Emitted when the implementation is upgraded.
*/
event Upgraded(address indexed implementation);
/**
* @dev Returns the current implementation address.
*/
function _getImplementation() internal view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Perform implementation upgrade
*
* Emits an {Upgraded} event.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Perform implementation upgrade with additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCall(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
_upgradeTo(newImplementation);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(newImplementation, data);
}
}
/**
* @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCallUUPS(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
// Upgrades from old implementations will perform a rollback test. This test requires the new
// implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
// this special case will break upgrade paths from old UUPS implementation to new ones.
if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
_setImplementation(newImplementation);
} else {
try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
} catch {
revert("ERC1967Upgrade: new implementation is not UUPS");
}
_upgradeToAndCall(newImplementation, data, forceCall);
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Emitted when the admin account has changed.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Returns the current admin.
*/
function _getAdmin() internal view returns (address) {
return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 admin slot.
*/
function _setAdmin(address newAdmin) private {
require(newAdmin != address(0), "ERC1967: new admin is the zero address");
StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*/
function _changeAdmin(address newAdmin) internal {
emit AdminChanged(_getAdmin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
* This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
*/
bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
/**
* @dev Emitted when the beacon is upgraded.
*/
event BeaconUpgraded(address indexed beacon);
/**
* @dev Returns the current beacon.
*/
function _getBeacon() internal view returns (address) {
return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
}
/**
* @dev Stores a new beacon in the EIP1967 beacon slot.
*/
function _setBeacon(address newBeacon) private {
require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
require(
Address.isContract(IBeacon(newBeacon).implementation()),
"ERC1967: beacon implementation is not a contract"
);
StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
}
/**
* @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
* not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
*
* Emits a {BeaconUpgraded} event.
*/
function _upgradeBeaconToAndCall(
address newBeacon,
bytes memory data,
bool forceCall
) internal {
_setBeacon(newBeacon);
emit BeaconUpgraded(newBeacon);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
}
}
}
// contracts/ionic/AddressesProvider.sol
/**
* @title AddressesProvider
* @notice The Addresses Provider serves as a central storage of system internal and external
* contract addresses that change between deploys and across chains
* @author Veliko Minkov <[email protected]>
*/
contract AddressesProvider is SafeOwnableUpgradeable {
mapping(string => address) private _addresses;
mapping(address => Contract) public plugins;
mapping(address => Contract) public flywheelRewards;
mapping(address => RedemptionStrategy) public redemptionStrategiesConfig;
mapping(address => FundingStrategy) public fundingStrategiesConfig;
JarvisPool[] public jarvisPoolsConfig;
CurveSwapPool[] public curveSwapPoolsConfig;
mapping(address => mapping(address => address)) public balancerPoolForTokens;
/// @dev Initializer to set the admin that can set and change contracts addresses
function initialize(address owner) public initializer {
__SafeOwnable_init(owner);
}
/**
* @dev The contract address and a string that uniquely identifies the contract's interface
*/
struct Contract {
address addr;
string contractInterface;
}
struct RedemptionStrategy {
address addr;
string contractInterface;
address outputToken;
}
struct FundingStrategy {
address addr;
string contractInterface;
address inputToken;
}
struct JarvisPool {
address syntheticToken;
address collateralToken;
address liquidityPool;
uint256 expirationTime;
}
struct CurveSwapPool {
address poolAddress;
address[] coins;
}
/**
* @dev sets the address and contract interface ID of the flywheel for the reward token
* @param rewardToken the reward token address
* @param flywheelRewardsModule the flywheel rewards module address
* @param contractInterface a string that uniquely identifies the contract's interface
*/
function setFlywheelRewards(
address rewardToken,
address flywheelRewardsModule,
string calldata contractInterface
) public onlyOwner {
flywheelRewards[rewardToken] = Contract(flywheelRewardsModule, contractInterface);
}
/**
* @dev sets the address and contract interface ID of the ERC4626 plugin for the asset
* @param asset the asset address
* @param plugin the ERC4626 plugin address
* @param contractInterface a string that uniquely identifies the contract's interface
*/
function setPlugin(
address asset,
address plugin,
string calldata contractInterface
) public onlyOwner {
plugins[asset] = Contract(plugin, contractInterface);
}
/**
* @dev sets the address and contract interface ID of the redemption strategy for the asset
* @param asset the asset address
* @param strategy redemption strategy address
* @param contractInterface a string that uniquely identifies the contract's interface
*/
function setRedemptionStrategy(
address asset,
address strategy,
string calldata contractInterface,
address outputToken
) public onlyOwner {
redemptionStrategiesConfig[asset] = RedemptionStrategy(strategy, contractInterface, outputToken);
}
function getRedemptionStrategy(address asset) public view returns (RedemptionStrategy memory) {
return redemptionStrategiesConfig[asset];
}
/**
* @dev sets the address and contract interface ID of the funding strategy for the asset
* @param asset the asset address
* @param strategy funding strategy address
* @param contractInterface a string that uniquely identifies the contract's interface
*/
function setFundingStrategy(
address asset,
address strategy,
string calldata contractInterface,
address inputToken
) public onlyOwner {
fundingStrategiesConfig[asset] = FundingStrategy(strategy, contractInterface, inputToken);
}
function getFundingStrategy(address asset) public view returns (FundingStrategy memory) {
return fundingStrategiesConfig[asset];
}
/**
* @dev configures the Jarvis pool of a Jarvis synthetic token
* @param syntheticToken the synthetic token address
* @param collateralToken the collateral token address
* @param liquidityPool the liquidity pool address
* @param expirationTime the operation expiration time
*/
function setJarvisPool(
address syntheticToken,
address collateralToken,
address liquidityPool,
uint256 expirationTime
) public onlyOwner {
jarvisPoolsConfig.push(JarvisPool(syntheticToken, collateralToken, liquidityPool, expirationTime));
}
function setCurveSwapPool(address poolAddress, address[] calldata coins) public onlyOwner {
curveSwapPoolsConfig.push(CurveSwapPool(poolAddress, coins));
}
/**
* @dev Sets an address for an id replacing the address saved in the addresses map
* @param id The id
* @param newAddress The address to set
*/
function setAddress(string calldata id, address newAddress) external onlyOwner {
_addresses[id] = newAddress;
}
/**
* @dev Returns an address by id
* @return The address
*/
function getAddress(string calldata id) public view returns (address) {
return _addresses[id];
}
function getCurveSwapPools() public view returns (CurveSwapPool[] memory) {
return curveSwapPoolsConfig;
}
function getJarvisPools() public view returns (JarvisPool[] memory) {
return jarvisPoolsConfig;
}
function setBalancerPoolForTokens(
address inputToken,
address outputToken,
address pool
) external onlyOwner {
balancerPoolForTokens[inputToken][outputToken] = pool;
}
function getBalancerPoolForTokens(address inputToken, address outputToken) external view returns (address) {
return balancerPoolForTokens[inputToken][outputToken];
}
}
// lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Proxy.sol
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol)
/**
* @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
* implementation address that can be changed. This address is stored in storage in the location specified by
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
* implementation behind the proxy.
*/
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
/**
* @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
*
* If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
* function call, and allows initializing the storage of the proxy like a Solidity constructor.
*/
constructor(address _logic, bytes memory _data) payable {
_upgradeToAndCall(_logic, _data, false);
}
/**
* @dev Returns the current implementation address.
*/
function _implementation() internal view virtual override returns (address impl) {
return ERC1967Upgrade._getImplementation();
}
}
// lib/openzeppelin-contracts/contracts/proxy/transparent/TransparentUpgradeableProxy.sol
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/transparent/TransparentUpgradeableProxy.sol)
/**
* @dev This contract implements a proxy that is upgradeable by an admin.
*
* To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
* clashing], which can potentially be used in an attack, this contract uses the
* https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
* things that go hand in hand:
*
* 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
* that call matches one of the admin functions exposed by the proxy itself.
* 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
* implementation. If the admin tries to call a function on the implementation it will fail with an error that says
* "admin cannot fallback to proxy target".
*
* These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
* the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
* to sudden errors when trying to call a function from the proxy implementation.
*
* Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
* you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
*/
contract TransparentUpgradeableProxy is ERC1967Proxy {
/**
* @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
* optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.
*/
constructor(
address _logic,
address admin_,
bytes memory _data
) payable ERC1967Proxy(_logic, _data) {
_changeAdmin(admin_);
}
/**
* @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
*/
modifier ifAdmin() {
if (msg.sender == _getAdmin()) {
_;
} else {
_fallback();
}
}
/**
* @dev Returns the current admin.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
*
* TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
* https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
* `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
*/
function admin() external ifAdmin returns (address admin_) {
admin_ = _getAdmin();
}
/**
* @dev Returns the current implementation.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
*
* TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
* https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
* `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
*/
function implementation() external ifAdmin returns (address implementation_) {
implementation_ = _implementation();
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
*/
function changeAdmin(address newAdmin) external virtual ifAdmin {
_changeAdmin(newAdmin);
}
/**
* @dev Upgrade the implementation of the proxy.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeToAndCall(newImplementation, bytes(""), false);
}
/**
* @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
* by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
* proxied contract.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeToAndCall(newImplementation, data, true);
}
/**
* @dev Returns the current admin.
*/
function _admin() internal view virtual returns (address) {
return _getAdmin();
}
/**
* @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
*/
function _beforeFallback() internal virtual override {
require(msg.sender != _getAdmin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target");
super._beforeFallback();
}
}
// contracts/compound/CTokenInterfaces.sol
abstract contract CTokenAdminStorage {
/*
* Administrator for Ionic
*/
address payable public ionicAdmin;
}
abstract contract CErc20Storage is CTokenAdminStorage {
/**
* @dev Guard variable for re-entrancy checks
*/
bool internal _notEntered;
/**
* @notice EIP-20 token name for this token
*/
string public name;
/**
* @notice EIP-20 token symbol for this token
*/
string public symbol;
/**
* @notice EIP-20 token decimals for this token
*/
uint8 public decimals;
/*
* Maximum borrow rate that can ever be applied (.0005% / block)
*/
uint256 internal constant borrowRateMaxMantissa = 0.0005e16;
/*
* Maximum fraction of interest that can be set aside for reserves + fees
*/
uint256 internal constant reserveFactorPlusFeesMaxMantissa = 1e18;
/**
* @notice Contract which oversees inter-cToken operations
*/
IonicComptroller public comptroller;
/**
* @notice Model which tells what the current interest rate should be
*/
InterestRateModel public interestRateModel;
/*
* Initial exchange rate used when minting the first CTokens (used when totalSupply = 0)
*/
uint256 internal initialExchangeRateMantissa;
/**
* @notice Fraction of interest currently set aside for admin fees
*/
uint256 public adminFeeMantissa;
/**
* @notice Fraction of interest currently set aside for Ionic fees
*/
uint256 public ionicFeeMantissa;
/**
* @notice Fraction of interest currently set aside for reserves
*/
uint256 public reserveFactorMantissa;
/**
* @notice Block number that interest was last accrued at
*/
uint256 public accrualBlockNumber;
/**
* @notice Accumulator of the total earned interest rate since the opening of the market
*/
uint256 public borrowIndex;
/**
* @notice Total amount of outstanding borrows of the underlying in this market
*/
uint256 public totalBorrows;
/**
* @notice Total amount of reserves of the underlying held in this market
*/
uint256 public totalReserves;
/**
* @notice Total amount of admin fees of the underlying held in this market
*/
uint256 public totalAdminFees;
/**
* @notice Total amount of Ionic fees of the underlying held in this market
*/
uint256 public totalIonicFees;
/**
* @notice Total number of tokens in circulation
*/
uint256 public totalSupply;
/*
* Official record of token balances for each account
*/
mapping(address => uint256) internal accountTokens;
/*
* Approved token transfer amounts on behalf of others
*/
mapping(address => mapping(address => uint256)) internal transferAllowances;
/**
* @notice Container for borrow balance information
* @member principal Total balance (with accrued interest), after applying the most recent balance-changing action
* @member interestIndex Global borrowIndex as of the most recent balance-changing action
*/
struct BorrowSnapshot {
uint256 principal;
uint256 interestIndex;
}
/*
* Mapping of account addresses to outstanding borrow balances
*/
mapping(address => BorrowSnapshot) internal accountBorrows;
/*
* Share of seized collateral that is added to reserves
*/
uint256 public constant protocolSeizeShareMantissa = 2.8e16; //2.8%
/*
* Share of seized collateral taken as fees
*/
uint256 public constant feeSeizeShareMantissa = 1e17; //10%
/**
* @notice Underlying asset for this CToken
*/
address public underlying;
/**
* @notice Addresses Provider
*/
AddressesProvider public ap;
}
abstract contract CTokenBaseEvents {
/* ERC20 */
/**
* @notice EIP20 Transfer event
*/
event Transfer(address indexed from, address indexed to, uint256 amount);
/*** Admin Events ***/
/**
* @notice Event emitted when interestRateModel is changed
*/
event NewMarketInterestRateModel(InterestRateModel oldInterestRateModel, InterestRateModel newInterestRateModel);
/**
* @notice Event emitted when the reserve factor is changed
*/
event NewReserveFactor(uint256 oldReserveFactorMantissa, uint256 newReserveFactorMantissa);
/**
* @notice Event emitted when the admin fee is changed
*/
event NewAdminFee(uint256 oldAdminFeeMantissa, uint256 newAdminFeeMantissa);
/**
* @notice Event emitted when the Ionic fee is changed
*/
event NewIonicFee(uint256 oldIonicFeeMantissa, uint256 newIonicFeeMantissa);
/**
* @notice EIP20 Approval event
*/
event Approval(address indexed owner, address indexed spender, uint256 amount);
/**
* @notice Event emitted when interest is accrued
*/
event AccrueInterest(uint256 cashPrior, uint256 interestAccumulated, uint256 borrowIndex, uint256 totalBorrows);
}
abstract contract CTokenFirstExtensionEvents is CTokenBaseEvents {
event Flash(address receiver, uint256 amount);
}
abstract contract CTokenSecondExtensionEvents is CTokenBaseEvents {
/*** Market Events ***/
/**
* @notice Event emitted when tokens are minted
*/
event Mint(address minter, uint256 mintAmount, uint256 mintTokens);
/**
* @notice Event emitted when tokens are redeemed
*/
event Redeem(address redeemer, uint256 redeemAmount, uint256 redeemTokens);
/**
* @notice Event emitted when underlying is borrowed
*/
event Borrow(address borrower, uint256 borrowAmount, uint256 accountBorrows, uint256 totalBorrows);
/**
* @notice Event emitted when a borrow is repaid
*/
event RepayBorrow(address payer, address borrower, uint256 repayAmount, uint256 accountBorrows, uint256 totalBorrows);
/**
* @notice Event emitted when a borrow is liquidated
*/
event LiquidateBorrow(
address liquidator,
address borrower,
uint256 repayAmount,
address cTokenCollateral,
uint256 seizeTokens
);
/**
* @notice Event emitted when the reserves are added
*/
event ReservesAdded(address benefactor, uint256 addAmount, uint256 newTotalReserves);
/**
* @notice Event emitted when the reserves are reduced
*/
event ReservesReduced(address admin, uint256 reduceAmount, uint256 newTotalReserves);
}
interface CTokenFirstExtensionInterface {
/*** User Interface ***/
function transfer(address dst, uint256 amount) external returns (bool);
function transferFrom(
address src,
address dst,
uint256 amount
) external returns (bool);
function approve(address spender, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
/*** Admin Functions ***/
function _setReserveFactor(uint256 newReserveFactorMantissa) external returns (uint256);
function _setAdminFee(uint256 newAdminFeeMantissa) external returns (uint256);
function _setInterestRateModel(InterestRateModel newInterestRateModel) external returns (uint256);
function getAccountSnapshot(address account)
external
view
returns (
uint256,
uint256,
uint256,
uint256
);
function borrowRatePerBlock() external view returns (uint256);
function supplyRatePerBlock() external view returns (uint256);
function exchangeRateCurrent() external view returns (uint256);
function accrueInterest() external returns (uint256);
function totalBorrowsCurrent() external view returns (uint256);
function borrowBalanceCurrent(address account) external view returns (uint256);
function getTotalUnderlyingSupplied() external view returns (uint256);
function balanceOfUnderlying(address owner) external view returns (uint256);
function multicall(bytes[] calldata data) external payable returns (bytes[] memory results);
function flash(uint256 amount, bytes calldata data) external;
function supplyRatePerBlockAfterDeposit(uint256 mintAmount) external view returns (uint256);
function supplyRatePerBlockAfterWithdraw(uint256 withdrawAmount) external view returns (uint256);
function borrowRatePerBlockAfterBorrow(uint256 borrowAmount) external view returns (uint256);
function registerInSFS() external returns (uint256);
}
interface CTokenSecondExtensionInterface {
function mint(uint256 mintAmount) external returns (uint256);
function redeem(uint256 redeemTokens) external returns (uint256);
function redeemUnderlying(uint256 redeemAmount) external returns (uint256);
function borrow(uint256 borrowAmount) external returns (uint256);
function repayBorrow(uint256 repayAmount) external returns (uint256);
function repayBorrowBehalf(address borrower, uint256 repayAmount) external returns (uint256);
function liquidateBorrow(
address borrower,
uint256 repayAmount,
address cTokenCollateral
) external returns (uint256);
function getCash() external view returns (uint256);
function seize(
address liquidator,
address borrower,
uint256 seizeTokens
) external returns (uint256);
/*** Admin Functions ***/
function _withdrawAdminFees(uint256 withdrawAmount) external returns (uint256);
function _withdrawIonicFees(uint256 withdrawAmount) external returns (uint256);
function selfTransferOut(address to, uint256 amount) external;
function selfTransferIn(address from, uint256 amount) external returns (uint256);
}
interface CDelegatorInterface {
function implementation() external view returns (address);
/**
* @notice Called by the admin to update the implementation of the delegator
* @param implementation_ The address of the new implementation for delegation
* @param becomeImplementationData The encoded bytes data to be passed to _becomeImplementation
*/
function _setImplementationSafe(address implementation_, bytes calldata becomeImplementationData) external;
/**
* @dev upgrades the implementation if necessary
*/
function _upgrade() external;
}
interface CDelegateInterface {
/**
* @notice Called by the delegator on a delegate to initialize it for duty
* @dev Should revert if any issues arise which make it unfit for delegation
* @param data The encoded bytes data for any initialization
*/
function _becomeImplementation(bytes calldata data) external;
function delegateType() external pure returns (uint8);
function contractType() external pure returns (string memory);
}
abstract contract CErc20AdminBase is CErc20Storage {
/**
* @notice Returns a boolean indicating if the sender has admin rights
*/
function hasAdminRights() internal view returns (bool) {
ComptrollerV3Storage comptrollerStorage = ComptrollerV3Storage(address(comptroller));
return
(msg.sender == comptrollerStorage.admin() && comptrollerStorage.adminHasRights()) ||
(msg.sender == address(ionicAdmin) && comptrollerStorage.ionicAdminHasRights());
}
}
abstract contract CErc20FirstExtensionBase is
CErc20AdminBase,
CTokenFirstExtensionEvents,
CTokenFirstExtensionInterface
{}
abstract contract CTokenSecondExtensionBase is
CErc20AdminBase,
CTokenSecondExtensionEvents,
CTokenSecondExtensionInterface,
CDelegateInterface
{}
abstract contract CErc20DelegatorBase is CErc20AdminBase, CTokenSecondExtensionEvents, CDelegatorInterface {}
interface CErc20StorageInterface {
function admin() external view returns (address);
function adminHasRights() external view returns (bool);
function ionicAdmin() external view returns (address);
function ionicAdminHasRights() external view returns (bool);
function comptroller() external view returns (IonicComptroller);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint256);
function adminFeeMantissa() external view returns (uint256);
function ionicFeeMantissa() external view returns (uint256);
function reserveFactorMantissa() external view returns (uint256);
function protocolSeizeShareMantissa() external view returns (uint256);
function feeSeizeShareMantissa() external view returns (uint256);
function totalReserves() external view returns (uint256);
function totalAdminFees() external view returns (uint256);
function totalIonicFees() external view returns (uint256);
function totalBorrows() external view returns (uint256);
function accrualBlockNumber() external view returns (uint256);
function underlying() external view returns (address);
function borrowIndex() external view returns (uint256);
function interestRateModel() external view returns (address);
}
interface CErc20PluginStorageInterface is CErc20StorageInterface {
function plugin() external view returns (address);
}
interface CErc20PluginRewardsInterface is CErc20PluginStorageInterface {
function approve(address, address) external;
}
interface ICErc20 is
CErc20StorageInterface,
CTokenSecondExtensionInterface,
CTokenFirstExtensionInterface,
CDelegatorInterface,
CDelegateInterface
{}
interface ICErc20Plugin is CErc20PluginStorageInterface, ICErc20 {
function _updatePlugin(address _plugin) external;
}
interface ICErc20PluginRewards is CErc20PluginRewardsInterface, ICErc20 {}
// contracts/compound/ComptrollerInterface.sol
interface ComptrollerInterface {
function isDeprecated(ICErc20 cToken) external view returns (bool);
function _becomeImplementation() external;
function _deployMarket(
uint8 delegateType,
bytes memory constructorData,
bytes calldata becomeImplData,
uint256 collateralFactorMantissa
) external returns (uint256);
function getAssetsIn(address account) external view returns (ICErc20[] memory);
function checkMembership(address account, ICErc20 cToken) external view returns (bool);
function _setPriceOracle(BasePriceOracle newOracle) external returns (uint256);
function _setCloseFactor(uint256 newCloseFactorMantissa) external returns (uint256);
function _setCollateralFactor(ICErc20 market, uint256 newCollateralFactorMantissa) external returns (uint256);
function _setLiquidationIncentive(uint256 newLiquidationIncentiveMantissa) external returns (uint256);
function _setWhitelistEnforcement(bool enforce) external returns (uint256);
function _setWhitelistStatuses(address[] calldata _suppliers, bool[] calldata statuses) external returns (uint256);
function _addRewardsDistributor(address distributor) external returns (uint256);
function getHypotheticalAccountLiquidity(
address account,
address cTokenModify,
uint256 redeemTokens,
uint256 borrowAmount,
uint256 repayAmount
)
external
view
returns (
uint256,
uint256,
uint256,
uint256
);
function getMaxRedeemOrBorrow(
address account,
ICErc20 cToken,
bool isBorrow
) external view returns (uint256);
/*** Assets You Are In ***/
function enterMarkets(address[] calldata cTokens) external returns (uint256[] memory);
function exitMarket(address cToken) external returns (uint256);
/*** Policy Hooks ***/
function mintAllowed(
address cToken,
address minter,
uint256 mintAmount
) external returns (uint256);
function redeemAllowed(
address cToken,
address redeemer,
uint256 redeemTokens
) external returns (uint256);
function redeemVerify(
address cToken,
address redeemer,
uint256 redeemAmount,
uint256 redeemTokens
) external;
function borrowAllowed(
address cToken,
address borrower,
uint256 borrowAmount
) external returns (uint256);
function borrowWithinLimits(address cToken, uint256 accountBorrowsNew) external view returns (uint256);
function repayBorrowAllowed(
address cToken,
address payer,
address borrower,
uint256 repayAmount
) external returns (uint256);
function liquidateBorrowAllowed(
address cTokenBorrowed,
address cTokenCollateral,
address liquidator,
address borrower,
uint256 repayAmount
) external returns (uint256);
function seizeAllowed(
address cTokenCollateral,
address cTokenBorrowed,
address liquidator,
address borrower,
uint256 seizeTokens
) external returns (uint256);
function transferAllowed(
address cToken,
address src,
address dst,
uint256 transferTokens
) external returns (uint256);
function mintVerify(
address cToken,
address minter,
uint256 actualMintAmount,
uint256 mintTokens
) external;
/*** Liquidity/Liquidation Calculations ***/
function getAccountLiquidity(address account)
external
view
returns (
uint256 error,
uint256 collateralValue,
uint256 liquidity,
uint256 shortfall
);
function liquidateCalculateSeizeTokens(
address cTokenBorrowed,
address cTokenCollateral,
uint256 repayAmount
) external view returns (uint256, uint256);
/*** Pool-Wide/Cross-Asset Reentrancy Prevention ***/
function _beforeNonReentrant() external;
function _afterNonReentrant() external;
}
interface ComptrollerStorageInterface {
function admin() external view returns (address);
function adminHasRights() external view returns (bool);
function ionicAdmin() external view returns (address);
function ionicAdminHasRights() external view returns (bool);
function pendingAdmin() external view returns (address);
function oracle() external view returns (BasePriceOracle);
function pauseGuardian() external view returns (address);
function closeFactorMantissa() external view returns (uint256);
function liquidationIncentiveMantissa() external view returns (uint256);
function isUserOfPool(address user) external view returns (bool);
function whitelist(address account) external view returns (bool);
function enforceWhitelist() external view returns (bool);
function borrowCapForCollateral(address borrowed, address collateral) external view returns (uint256);
function borrowingAgainstCollateralBlacklist(address borrowed, address collateral) external view returns (bool);
function suppliers(address account) external view returns (bool);
function cTokensByUnderlying(address) external view returns (address);
function supplyCaps(address cToken) external view returns (uint256);
function borrowCaps(address cToken) external view returns (uint256);
function markets(address cToken) external view returns (bool, uint256);
function accountAssets(address, uint256) external view returns (address);
function borrowGuardianPaused(address cToken) external view returns (bool);
function mintGuardianPaused(address cToken) external view returns (bool);
function rewardsDistributors(uint256) external view returns (address);
}
interface SFSRegister {
function register(address _recipient) external returns (uint256 tokenId);
}
interface ComptrollerExtensionInterface {
function getWhitelistedSuppliersSupply(address cToken) external view returns (uint256 supplied);
function getWhitelistedBorrowersBorrows(address cToken) external view returns (uint256 borrowed);
function getAllMarkets() external view returns (ICErc20[] memory);
function getAllBorrowers() external view returns (address[] memory);
function getAllBorrowersCount() external view returns (uint256);
function getPaginatedBorrowers(uint256 page, uint256 pageSize)
external
view
returns (uint256 _totalPages, address[] memory _pageOfBorrowers);
function getRewardsDistributors() external view returns (address[] memory);
function getAccruingFlywheels() external view returns (address[] memory);
function _supplyCapWhitelist(
address cToken,
address account,
bool whitelisted
) external;
function _setBorrowCapForCollateral(
address cTokenBorrow,
address cTokenCollateral,
uint256 borrowCap
) external;
function _setBorrowCapForCollateralWhitelist(
address cTokenBorrow,
address cTokenCollateral,
address account,
bool whitelisted
) external;
function isBorrowCapForCollateralWhitelisted(
address cTokenBorrow,
address cTokenCollateral,
address account
) external view returns (bool);
function _blacklistBorrowingAgainstCollateral(
address cTokenBorrow,
address cTokenCollateral,
bool blacklisted
) external;
function _blacklistBorrowingAgainstCollateralWhitelist(
address cTokenBorrow,
address cTokenCollateral,
address account,
bool whitelisted
) external;
function isBlacklistBorrowingAgainstCollateralWhitelisted(
address cTokenBorrow,
address cTokenCollateral,
address account
) external view returns (bool);
function isSupplyCapWhitelisted(address cToken, address account) external view returns (bool);
function _borrowCapWhitelist(
address cToken,
address account,
bool whitelisted
) external;
function isBorrowCapWhitelisted(address cToken, address account) external view returns (bool);
function _removeFlywheel(address flywheelAddress) external returns (bool);
function getWhitelist() external view returns (address[] memory);
function addNonAccruingFlywheel(address flywheelAddress) external returns (bool);
function _setMarketSupplyCaps(ICErc20[] calldata cTokens, uint256[] calldata newSupplyCaps) external;
function _setMarketBorrowCaps(ICErc20[] calldata cTokens, uint256[] calldata newBorrowCaps) external;
function _setBorrowCapGuardian(address newBorrowCapGuardian) external;
function _setPauseGuardian(address newPauseGuardian) external returns (uint256);
function _setMintPaused(ICErc20 cToken, bool state) external returns (bool);
function _setBorrowPaused(ICErc20 cToken, bool state) external returns (bool);
function _setTransferPaused(bool state) external returns (bool);
function _setSeizePaused(bool state) external returns (bool);
function _unsupportMarket(ICErc20 cToken) external returns (uint256);
function getAssetAsCollateralValueCap(
ICErc20 collateral,
ICErc20 cTokenModify,
bool redeeming,
address account
) external view returns (uint256);
function registerInSFS() external returns (uint256);
}
interface UnitrollerInterface {
function comptrollerImplementation() external view returns (address);
function _upgrade() external;
function _acceptAdmin() external returns (uint256);
function _setPendingAdmin(address newPendingAdmin) external returns (uint256);
function _toggleAdminRights(bool hasRights) external returns (uint256);
}
interface IComptrollerExtension is ComptrollerExtensionInterface, ComptrollerStorageInterface {}
//interface IComptrollerBase is ComptrollerInterface, ComptrollerStorageInterface {}
interface IonicComptroller is
ComptrollerInterface,
ComptrollerExtensionInterface,
UnitrollerInterface,
ComptrollerStorageInterface
{
}
contract UnitrollerAdminStorage {
/*
* Administrator for Ionic
*/
address payable public ionicAdmin;
/**
* @notice Administrator for this contract
*/
address public admin;
/**
* @notice Pending administrator for this contract
*/
address public pendingAdmin;
/**
* @notice Whether or not the Ionic admin has admin rights
*/
bool public ionicAdminHasRights = true;
/**
* @notice Whether or not the admin has admin rights
*/
bool public adminHasRights = true;
/**
* @notice Returns a boolean indicating if the sender has admin rights
*/
function hasAdminRights() internal view returns (bool) {
return (msg.sender == admin && adminHasRights) || (msg.sender == address(ionicAdmin) && ionicAdminHasRights);
}
}
contract ComptrollerV1Storage is UnitrollerAdminStorage {
/**
* @notice Oracle which gives the price of any given asset
*/
BasePriceOracle public oracle;
/**
* @notice Multiplier used to calculate the maximum repayAmount when liquidating a borrow
*/
uint256 public closeFactorMantissa;
/**
* @notice Multiplier representing the discount on collateral that a liquidator receives
*/
uint256 public liquidationIncentiveMantissa;
/*
* UNUSED AFTER UPGRADE: Max number of assets a single account can participate in (borrow or use as collateral)
*/
uint256 internal maxAssets;
/**
* @notice Per-account mapping of "assets you are in", capped by maxAssets
*/
mapping(address => ICErc20[]) public accountAssets;
}
contract ComptrollerV2Storage is ComptrollerV1Storage {
struct Market {
// Whether or not this market is listed
bool isListed;
// Multiplier representing the most one can borrow against their collateral in this market.
// For instance, 0.9 to allow borrowing 90% of collateral value.
// Must be between 0 and 1, and stored as a mantissa.
uint256 collateralFactorMantissa;
// Per-market mapping of "accounts in this asset"
mapping(address => bool) accountMembership;
}
/**
* @notice Official mapping of cTokens -> Market metadata
* @dev Used e.g. to determine if a market is supported
*/
mapping(address => Market) public markets;
/// @notice A list of all markets
ICErc20[] public allMarkets;
/**
* @dev Maps borrowers to booleans indicating if they have entered any markets
*/
mapping(address => bool) internal borrowers;
/// @notice A list of all borrowers who have entered markets
address[] public allBorrowers;
// Indexes of borrower account addresses in the `allBorrowers` array
mapping(address => uint256) internal borrowerIndexes;
/**
* @dev Maps suppliers to booleans indicating if they have ever supplied to any markets
*/
mapping(address => bool) public suppliers;
/// @notice All cTokens addresses mapped by their underlying token addresses
mapping(address => ICErc20) public cTokensByUnderlying;
/// @notice Whether or not the supplier whitelist is enforced
bool public enforceWhitelist;
/// @notice Maps addresses to booleans indicating if they are allowed to supply assets (i.e., mint cTokens)
mapping(address => bool) public whitelist;
/// @notice An array of all whitelisted accounts
address[] public whitelistArray;
// Indexes of account addresses in the `whitelistArray` array
mapping(address => uint256) internal whitelistIndexes;
/**
* @notice The Pause Guardian can pause certain actions as a safety mechanism.
* Actions which allow users to remove their own assets cannot be paused.
* Liquidation / seizing / transfer can only be paused globally, not by market.
*/
address public pauseGuardian;
bool public _mintGuardianPaused;
bool public _borrowGuardianPaused;
bool public transferGuardianPaused;
bool public seizeGuardianPaused;
mapping(address => bool) public mintGuardianPaused;
mapping(address => bool) public borrowGuardianPaused;
}
contract ComptrollerV3Storage is ComptrollerV2Storage {
/// @notice The borrowCapGuardian can set borrowCaps to any number for any market. Lowering the borrow cap could disable borrowing on the given market.
address public borrowCapGuardian;
/// @notice Borrow caps enforced by borrowAllowed for each cToken address. Defaults to zero which corresponds to unlimited borrowing.
mapping(address => uint256) public borrowCaps;
/// @notice Supply caps enforced by mintAllowed for each cToken address. Defaults to zero which corresponds to unlimited supplying.
mapping(address => uint256) public supplyCaps;
/// @notice RewardsDistributor contracts to notify of flywheel changes.
address[] public rewardsDistributors;
/// @dev Guard variable for pool-wide/cross-asset re-entrancy checks
bool internal _notEntered;
/// @dev Whether or not _notEntered has been initialized
bool internal _notEnteredInitialized;
/// @notice RewardsDistributor to list for claiming, but not to notify of flywheel changes.
address[] public nonAccruingRewardsDistributors;
/// @dev cap for each user's borrows against specific assets - denominated in the borrowed asset
mapping(address => mapping(address => uint256)) public borrowCapForCollateral;
/// @dev blacklist to disallow the borrowing of an asset against specific collateral
mapping(address => mapping(address => bool)) public borrowingAgainstCollateralBlacklist;
/// @dev set of whitelisted accounts that are allowed to bypass the borrowing against specific collateral cap
mapping(address => mapping(address => EnumerableSet.AddressSet)) internal borrowCapForCollateralWhitelist;
/// @dev set of whitelisted accounts that are allowed to bypass the borrow cap
mapping(address => mapping(address => EnumerableSet.AddressSet))
internal borrowingAgainstCollateralBlacklistWhitelist;
/// @dev set of whitelisted accounts that are allowed to bypass the supply cap
mapping(address => EnumerableSet.AddressSet) internal supplyCapWhitelist;
/// @dev set of whitelisted accounts that are allowed to bypass the borrow cap
mapping(address => EnumerableSet.AddressSet) internal borrowCapWhitelist;
}
abstract contract ComptrollerBase is ComptrollerV3Storage {
/// @notice Indicator that this is a Comptroller contract (for inspection)
bool public constant isComptroller = true;
}
// contracts/compound/ComptrollerStorage.sol
// contracts/compound/IFeeDistributor.sol
interface IFeeDistributor {
function minBorrowEth() external view returns (uint256);
function maxUtilizationRate() external view returns (uint256);
function interestFeeRate() external view returns (uint256);
function latestComptrollerImplementation(address oldImplementation) external view returns (address);
function latestCErc20Delegate(uint8 delegateType)
external
view
returns (address cErc20Delegate, bytes memory becomeImplementationData);
function latestPluginImplementation(address oldImplementation) external view returns (address);
function getComptrollerExtensions(address comptroller) external view returns (address[] memory);
function getCErc20DelegateExtensions(address cErc20Delegate) external view returns (address[] memory);
function deployCErc20(
uint8 delegateType,
bytes calldata constructorData,
bytes calldata becomeImplData
) external returns (address);
function canCall(
address pool,
address user,
address target,
bytes4 functionSig
) external view returns (bool);
function authoritiesRegistry() external view returns (AuthoritiesRegistry);
fallback() external payable;
receive() external payable;
}
// contracts/ionic/AuthoritiesRegistry.sol
contract AuthoritiesRegistry is SafeOwnableUpgradeable {
mapping(address => PoolRolesAuthority) public poolsAuthorities;
PoolRolesAuthority public poolAuthLogic;
address public leveredPositionsFactory;
bool public noAuthRequired;
function initialize(address _leveredPositionsFactory) public initializer {
__SafeOwnable_init(msg.sender);
leveredPositionsFactory = _leveredPositionsFactory;
poolAuthLogic = new PoolRolesAuthority();
}
function reinitialize(address _leveredPositionsFactory) public onlyOwnerOrAdmin {
leveredPositionsFactory = _leveredPositionsFactory;
poolAuthLogic = new PoolRolesAuthority();
// for Neon the auth is not required
noAuthRequired = block.chainid == 245022934;
}
function createPoolAuthority(address pool) public onlyOwner returns (PoolRolesAuthority auth) {
require(address(poolsAuthorities[pool]) == address(0), "already created");
TransparentUpgradeableProxy proxy = new TransparentUpgradeableProxy(address(poolAuthLogic), _getProxyAdmin(), "");
auth = PoolRolesAuthority(address(proxy));
auth.initialize(address(this));
poolsAuthorities[pool] = auth;
auth.openPoolSupplierCapabilities(IonicComptroller(pool));
auth.setUserRole(address(this), auth.REGISTRY_ROLE(), true);
// sets the registry owner as the auth owner
reconfigureAuthority(pool);
}
function reconfigureAuthority(address poolAddress) public {
IonicComptroller pool = IonicComptroller(poolAddress);
PoolRolesAuthority auth = poolsAuthorities[address(pool)];
if (msg.sender != poolAddress || address(auth) != address(0)) {
require(address(auth) != address(0), "no such authority");
require(msg.sender == owner() || msg.sender == poolAddress, "not owner or pool");
auth.configureRegistryCapabilities();
auth.configurePoolSupplierCapabilities(pool);
auth.configurePoolBorrowerCapabilities(pool);
// everyone can be a liquidator
auth.configureOpenPoolLiquidatorCapabilities(pool);
auth.configureLeveredPositionCapabilities(pool);
if (auth.owner() != owner()) {
auth.setOwner(owner());
}
}
}
function canCall(
address pool,
address user,
address target,
bytes4 functionSig
) external view returns (bool) {
PoolRolesAuthority authorityForPool = poolsAuthorities[pool];
if (address(authorityForPool) == address(0)) {
return noAuthRequired;
} else {
// allow only if an auth exists and it allows the action
return authorityForPool.canCall(user, target, functionSig);
}
}
function setUserRole(
address pool,
address user,
uint8 role,
bool enabled
) external {
PoolRolesAuthority poolAuth = poolsAuthorities[pool];
require(address(poolAuth) != address(0), "auth does not exist");
require(msg.sender == owner() || msg.sender == leveredPositionsFactory, "not owner or factory");
require(msg.sender != leveredPositionsFactory || role == poolAuth.LEVERED_POSITION_ROLE(), "only lev pos role");
poolAuth.setUserRole(user, role, enabled);
}
}
// contracts/ionic/PoolRolesAuthority.sol
contract PoolRolesAuthority is RolesAuthority, Initializable {
constructor() RolesAuthority(address(0), Authority(address(0))) {
_disableInitializers();
}
function initialize(address _owner) public initializer {
owner = _owner;
authority = this;
}
// up to 256 roles
uint8 public constant REGISTRY_ROLE = 0;
uint8 public constant SUPPLIER_ROLE = 1;
uint8 public constant BORROWER_ROLE = 2;
uint8 public constant LIQUIDATOR_ROLE = 3;
uint8 public constant LEVERED_POSITION_ROLE = 4;
function configureRegistryCapabilities() external requiresAuth {
setRoleCapability(REGISTRY_ROLE, address(this), PoolRolesAuthority.configureRegistryCapabilities.selector, true);
setRoleCapability(
REGISTRY_ROLE,
address(this),
PoolRolesAuthority.configurePoolSupplierCapabilities.selector,
true
);
setRoleCapability(
REGISTRY_ROLE,
address(this),
PoolRolesAuthority.configurePoolBorrowerCapabilities.selector,
true
);
setRoleCapability(
REGISTRY_ROLE,
address(this),
PoolRolesAuthority.configureClosedPoolLiquidatorCapabilities.selector,
true
);
setRoleCapability(
REGISTRY_ROLE,
address(this),
PoolRolesAuthority.configureOpenPoolLiquidatorCapabilities.selector,
true
);
setRoleCapability(
REGISTRY_ROLE,
address(this),
PoolRolesAuthority.configureLeveredPositionCapabilities.selector,
true
);
setRoleCapability(REGISTRY_ROLE, address(this), RolesAuthority.setUserRole.selector, true);
}
function openPoolSupplierCapabilities(IonicComptroller pool) external requiresAuth {
_setPublicPoolSupplierCapabilities(pool, true);
}
function closePoolSupplierCapabilities(IonicComptroller pool) external requiresAuth {
_setPublicPoolSupplierCapabilities(pool, false);
}
function _setPublicPoolSupplierCapabilities(IonicComptroller pool, bool setPublic) internal {
setPublicCapability(address(pool), pool.enterMarkets.selector, setPublic);
setPublicCapability(address(pool), pool.exitMarket.selector, setPublic);
ICErc20[] memory allMarkets = pool.getAllMarkets();
for (uint256 i = 0; i < allMarkets.length; i++) {
bytes4[] memory selectors = getSupplierMarketSelectors();
for (uint256 j = 0; j < selectors.length; j++) {
setPublicCapability(address(allMarkets[i]), selectors[j], setPublic);
}
}
}
function configurePoolSupplierCapabilities(IonicComptroller pool) external requiresAuth {
_configurePoolSupplierCapabilities(pool, SUPPLIER_ROLE);
}
function getSupplierMarketSelectors() internal pure returns (bytes4[] memory selectors) {
uint8 fnsCount = 6;
selectors = new bytes4[](fnsCount);
selectors[--fnsCount] = CTokenSecondExtensionInterface.mint.selector;
selectors[--fnsCount] = CTokenSecondExtensionInterface.redeem.selector;
selectors[--fnsCount] = CTokenSecondExtensionInterface.redeemUnderlying.selector;
selectors[--fnsCount] = CTokenFirstExtensionInterface.transfer.selector;
selectors[--fnsCount] = CTokenFirstExtensionInterface.transferFrom.selector;
selectors[--fnsCount] = CTokenFirstExtensionInterface.approve.selector;
require(fnsCount == 0, "use the correct array length");
return selectors;
}
function _configurePoolSupplierCapabilities(IonicComptroller pool, uint8 role) internal {
setRoleCapability(role, address(pool), pool.enterMarkets.selector, true);
setRoleCapability(role, address(pool), pool.exitMarket.selector, true);
ICErc20[] memory allMarkets = pool.getAllMarkets();
for (uint256 i = 0; i < allMarkets.length; i++) {
bytes4[] memory selectors = getSupplierMarketSelectors();
for (uint256 j = 0; j < selectors.length; j++) {
setRoleCapability(role, address(allMarkets[i]), selectors[j], true);
}
}
}
function openPoolBorrowerCapabilities(IonicComptroller pool) external requiresAuth {
_setPublicPoolBorrowerCapabilities(pool, true);
}
function closePoolBorrowerCapabilities(IonicComptroller pool) external requiresAuth {
_setPublicPoolBorrowerCapabilities(pool, false);
}
function _setPublicPoolBorrowerCapabilities(IonicComptroller pool, bool setPublic) internal {
ICErc20[] memory allMarkets = pool.getAllMarkets();
for (uint256 i = 0; i < allMarkets.length; i++) {
setPublicCapability(address(allMarkets[i]), allMarkets[i].borrow.selector, setPublic);
setPublicCapability(address(allMarkets[i]), allMarkets[i].repayBorrow.selector, setPublic);
setPublicCapability(address(allMarkets[i]), allMarkets[i].repayBorrowBehalf.selector, setPublic);
setPublicCapability(address(allMarkets[i]), allMarkets[i].flash.selector, setPublic);
}
}
function configurePoolBorrowerCapabilities(IonicComptroller pool) external requiresAuth {
// borrowers have the SUPPLIER_ROLE capabilities by default
_configurePoolSupplierCapabilities(pool, BORROWER_ROLE);
ICErc20[] memory allMarkets = pool.getAllMarkets();
for (uint256 i = 0; i < allMarkets.length; i++) {
setRoleCapability(BORROWER_ROLE, address(allMarkets[i]), allMarkets[i].borrow.selector, true);
setRoleCapability(BORROWER_ROLE, address(allMarkets[i]), allMarkets[i].repayBorrow.selector, true);
setRoleCapability(BORROWER_ROLE, address(allMarkets[i]), allMarkets[i].repayBorrowBehalf.selector, true);
setRoleCapability(BORROWER_ROLE, address(allMarkets[i]), allMarkets[i].flash.selector, true);
}
}
function configureClosedPoolLiquidatorCapabilities(IonicComptroller pool) external requiresAuth {
ICErc20[] memory allMarkets = pool.getAllMarkets();
for (uint256 i = 0; i < allMarkets.length; i++) {
setPublicCapability(address(allMarkets[i]), allMarkets[i].liquidateBorrow.selector, false);
setRoleCapability(LIQUIDATOR_ROLE, address(allMarkets[i]), allMarkets[i].liquidateBorrow.selector, true);
setRoleCapability(LIQUIDATOR_ROLE, address(allMarkets[i]), allMarkets[i].redeem.selector, true);
}
}
function configureOpenPoolLiquidatorCapabilities(IonicComptroller pool) external requiresAuth {
ICErc20[] memory allMarkets = pool.getAllMarkets();
for (uint256 i = 0; i < allMarkets.length; i++) {
setPublicCapability(address(allMarkets[i]), allMarkets[i].liquidateBorrow.selector, true);
// TODO this leaves redeeming open for everyone
setPublicCapability(address(allMarkets[i]), allMarkets[i].redeem.selector, true);
}
}
function configureLeveredPositionCapabilities(IonicComptroller pool) external requiresAuth {
setRoleCapability(LEVERED_POSITION_ROLE, address(pool), pool.enterMarkets.selector, true);
setRoleCapability(LEVERED_POSITION_ROLE, address(pool), pool.exitMarket.selector, true);
ICErc20[] memory allMarkets = pool.getAllMarkets();
for (uint256 i = 0; i < allMarkets.length; i++) {
setRoleCapability(LEVERED_POSITION_ROLE, address(allMarkets[i]), allMarkets[i].mint.selector, true);
setRoleCapability(LEVERED_POSITION_ROLE, address(allMarkets[i]), allMarkets[i].redeem.selector, true);
setRoleCapability(LEVERED_POSITION_ROLE, address(allMarkets[i]), allMarkets[i].redeemUnderlying.selector, true);
setRoleCapability(LEVERED_POSITION_ROLE, address(allMarkets[i]), allMarkets[i].borrow.selector, true);
setRoleCapability(LEVERED_POSITION_ROLE, address(allMarkets[i]), allMarkets[i].repayBorrow.selector, true);
setRoleCapability(LEVERED_POSITION_ROLE, address(allMarkets[i]), allMarkets[i].flash.selector, true);
}
}
}
// contracts/oracles/BasePriceOracle.sol
/**
* @title BasePriceOracle
* @notice Returns prices of underlying tokens directly without the caller having to specify a cToken address.
* @dev Implements the `PriceOracle` interface.
* @author David Lucid <[email protected]> (https://github.com/davidlucid)
*/
interface BasePriceOracle {
/**
* @notice Get the price of an underlying asset.
* @param underlying The underlying asset to get the price of.
* @return The underlying asset price in ETH as a mantissa (scaled by 1e18).
* Zero means the price is unavailable.
*/
function price(address underlying) external view returns (uint256);
/**
* @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(ICErc20 cToken) external view returns (uint256);
}
// contracts/compound/Comptroller.sol
/**
* @title Compound's Comptroller Contract
* @author Compound
* @dev This contract should not to be deployed alone; instead, deploy `Unitroller` (proxy contract) on top of this `Comptroller` (logic/implementation contract).
*/
contract Comptroller is ComptrollerBase, ComptrollerInterface, ComptrollerErrorReporter, Exponential, DiamondExtension {
using EnumerableSet for EnumerableSet.AddressSet;
/// @notice Emitted when an admin supports a market
event MarketListed(ICErc20 cToken);
/// @notice Emitted when an account enters a market
event MarketEntered(ICErc20 cToken, address account);
/// @notice Emitted when an account exits a market
event MarketExited(ICErc20 cToken, address account);
/// @notice Emitted when close factor is changed by admin
event NewCloseFactor(uint256 oldCloseFactorMantissa, uint256 newCloseFactorMantissa);
/// @notice Emitted when a collateral factor is changed by admin
event NewCollateralFactor(ICErc20 cToken, uint256 oldCollateralFactorMantissa, uint256 newCollateralFactorMantissa);
/// @notice Emitted when liquidation incentive is changed by admin
event NewLiquidationIncentive(uint256 oldLiquidationIncentiveMantissa, uint256 newLiquidationIncentiveMantissa);
/// @notice Emitted when price oracle is changed
event NewPriceOracle(BasePriceOracle oldPriceOracle, BasePriceOracle newPriceOracle);
/// @notice Emitted when the whitelist enforcement is changed
event WhitelistEnforcementChanged(bool enforce);
/// @notice Emitted when a new RewardsDistributor contract is added to hooks
event AddedRewardsDistributor(address rewardsDistributor);
// closeFactorMantissa must be strictly greater than this value
uint256 internal constant closeFactorMinMantissa = 0.05e18; // 0.05
// closeFactorMantissa must not exceed this value
uint256 internal constant closeFactorMaxMantissa = 0.9e18; // 0.9
// No collateralFactorMantissa may exceed this value
uint256 internal constant collateralFactorMaxMantissa = 0.9e18; // 0.9
// liquidationIncentiveMantissa must be no less than this value
uint256 internal constant liquidationIncentiveMinMantissa = 1.0e18; // 1.0
// liquidationIncentiveMantissa must be no greater than this value
uint256 internal constant liquidationIncentiveMaxMantissa = 1.5e18; // 1.5
modifier isAuthorized() {
require(IFeeDistributor(ionicAdmin).canCall(address(this), msg.sender, address(this), msg.sig), "not authorized");
_;
}
/*** Assets You Are In ***/
/**
* @notice Returns the assets an account has entered
* @param account The address of the account to pull assets for
* @return A dynamic list with the assets the account has entered
*/
function getAssetsIn(address account) external view returns (ICErc20[] memory) {
ICErc20[] memory assetsIn = accountAssets[account];
return assetsIn;
}
/**
* @notice Returns whether the given account is entered in the given asset
* @param account The address of the account to check
* @param cToken The cToken to check
* @return True if the account is in the asset, otherwise false.
*/
function checkMembership(address account, ICErc20 cToken) external view returns (bool) {
return markets[address(cToken)].accountMembership[account];
}
/**
* @notice Add assets to be included in account liquidity calculation
* @param cTokens The list of addresses of the cToken markets to be enabled
* @return Success indicator for whether each corresponding market was entered
*/
function enterMarkets(address[] memory cTokens) public override isAuthorized returns (uint256[] memory) {
uint256 len = cTokens.length;
uint256[] memory results = new uint256[](len);
for (uint256 i = 0; i < len; i++) {
ICErc20 cToken = ICErc20(cTokens[i]);
results[i] = uint256(addToMarketInternal(cToken, msg.sender));
}
return results;
}
/**
* @notice Add the market to the borrower's "assets in" for liquidity calculations
* @param cToken The market to enter
* @param borrower The address of the account to modify
* @return Success indicator for whether the market was entered
*/
function addToMarketInternal(ICErc20 cToken, address borrower) internal returns (Error) {
Market storage marketToJoin = markets[address(cToken)];
if (!marketToJoin.isListed) {
// market is not listed, cannot join
return Error.MARKET_NOT_LISTED;
}
if (marketToJoin.accountMembership[borrower] == true) {
// already joined
return Error.NO_ERROR;
}
// survived the gauntlet, add to list
// NOTE: we store these somewhat redundantly as a significant optimization
// this avoids having to iterate through the list for the most common use cases
// that is, only when we need to perform liquidity checks
// and not whenever we want to check if an account is in a particular market
marketToJoin.accountMembership[borrower] = true;
accountAssets[borrower].push(cToken);
// Add to allBorrowers
if (!borrowers[borrower]) {
allBorrowers.push(borrower);
borrowers[borrower] = true;
borrowerIndexes[borrower] = allBorrowers.length - 1;
}
emit MarketEntered(cToken, borrower);
return Error.NO_ERROR;
}
/**
* @notice Removes asset from sender's account liquidity calculation
* @dev Sender must not have an outstanding borrow balance in the asset,
* or be providing necessary collateral for an outstanding borrow.
* @param cTokenAddress The address of the asset to be removed
* @return Whether or not the account successfully exited the market
*/
function exitMarket(address cTokenAddress) external override isAuthorized returns (uint256) {
// TODO
require(markets[cTokenAddress].isListed, "!Comptroller:exitMarket");
ICErc20 cToken = ICErc20(cTokenAddress);
/* Get sender tokensHeld and amountOwed underlying from the cToken */
(uint256 oErr, uint256 tokensHeld, uint256 amountOwed, ) = cToken.getAccountSnapshot(msg.sender);
require(oErr == 0, "!exitMarket"); // semi-opaque error code
/* Fail if the sender has a borrow balance */
if (amountOwed != 0) {
return fail(Error.NONZERO_BORROW_BALANCE, FailureInfo.EXIT_MARKET_BALANCE_OWED);
}
/* Fail if the sender is not permitted to redeem all of their tokens */
uint256 allowed = redeemAllowedInternal(cTokenAddress, msg.sender, tokensHeld);
if (allowed != 0) {
return failOpaque(Error.REJECTION, FailureInfo.EXIT_MARKET_REJECTION, allowed);
}
Market storage marketToExit = markets[cTokenAddress];
/* Return true if the sender is not already ‘in’ the market */
if (!marketToExit.accountMembership[msg.sender]) {
return uint256(Error.NO_ERROR);
}
/* Set cToken account membership to false */
delete marketToExit.accountMembership[msg.sender];
/* Delete cToken from the account’s list of assets */
// load into memory for faster iteration
ICErc20[] memory userAssetList = accountAssets[msg.sender];
uint256 len = userAssetList.length;
uint256 assetIndex = len;
for (uint256 i = 0; i < len; i++) {
if (userAssetList[i] == ICErc20(cTokenAddress)) {
assetIndex = i;
break;
}
}
// We *must* have found the asset in the list or our redundant data structure is broken
assert(assetIndex < len);
// copy last item in list to location of item to be removed, reduce length by 1
ICErc20[] storage storedList = accountAssets[msg.sender];
storedList[assetIndex] = storedList[storedList.length - 1];
storedList.pop();
// If the user has exited all markets, remove them from the `allBorrowers` array
if (storedList.length == 0) {
allBorrowers[borrowerIndexes[msg.sender]] = allBorrowers[allBorrowers.length - 1]; // Copy last item in list to location of item to be removed
allBorrowers.pop(); // Reduce length by 1
borrowerIndexes[allBorrowers[borrowerIndexes[msg.sender]]] = borrowerIndexes[msg.sender]; // Set borrower index of moved item to correct index
borrowerIndexes[msg.sender] = 0; // Reset sender borrower index to 0 for a gas refund
borrowers[msg.sender] = false; // Tell the contract that the sender is no longer a borrower (so it knows to add the borrower back if they enter a market in the future)
}
emit MarketExited(ICErc20(cTokenAddress), msg.sender);
return uint256(Error.NO_ERROR);
}
/*** Policy Hooks ***/
/**
* @notice Checks if the account should be allowed to mint tokens in the given market
* @param cTokenAddress The market to verify the mint against
* @param minter The account which would get the minted tokens
* @param mintAmount The amount of underlying being supplied to the market in exchange for tokens
* @return 0 if the mint is allowed, otherwise a semi-opaque error code (See ErrorReporter.sol)
*/
function mintAllowed(
address cTokenAddress,
address minter,
uint256 mintAmount
) external override returns (uint256) {
// Pausing is a very serious situation - we revert to sound the alarms
require(!mintGuardianPaused[cTokenAddress], "!mint:paused");
// Make sure market is listed
if (!markets[cTokenAddress].isListed) {
return uint256(Error.MARKET_NOT_LISTED);
}
// Make sure minter is whitelisted
if (enforceWhitelist && !whitelist[minter]) {
return uint256(Error.SUPPLIER_NOT_WHITELISTED);
}
// Check supply cap
uint256 supplyCap = supplyCaps[cTokenAddress];
// Supply cap of 0 corresponds to unlimited supplying
if (supplyCap != 0 && !supplyCapWhitelist[cTokenAddress].contains(minter)) {
uint256 totalUnderlyingSupply = ICErc20(cTokenAddress).getTotalUnderlyingSupplied();
uint256 whitelistedSuppliersSupply = asComptrollerExtension().getWhitelistedSuppliersSupply(cTokenAddress);
uint256 nonWhitelistedTotalSupply;
if (whitelistedSuppliersSupply >= totalUnderlyingSupply) nonWhitelistedTotalSupply = 0;
else nonWhitelistedTotalSupply = totalUnderlyingSupply - whitelistedSuppliersSupply;
require(nonWhitelistedTotalSupply + mintAmount < supplyCap, "!supply cap");
}
// Keep the flywheel moving
flywheelPreSupplierAction(cTokenAddress, minter);
return uint256(Error.NO_ERROR);
}
/**
* @notice Checks if the account should be allowed to redeem tokens in the given market
* @param cToken The market to verify the redeem against
* @param redeemer The account which would redeem the tokens
* @param redeemTokens The number of cTokens to exchange for the underlying asset in the market
* @return 0 if the redeem is allowed, otherwise a semi-opaque error code (See ErrorReporter.sol)
*/
function redeemAllowed(
address cToken,
address redeemer,
uint256 redeemTokens
) external override returns (uint256) {
uint256 allowed = redeemAllowedInternal(cToken, redeemer, redeemTokens);
if (allowed != uint256(Error.NO_ERROR)) {
return allowed;
}
// Keep the flywheel moving
flywheelPreSupplierAction(cToken, redeemer);
return uint256(Error.NO_ERROR);
}
function redeemAllowedInternal(
address cToken,
address redeemer,
uint256 redeemTokens
) internal view returns (uint256) {
if (!markets[cToken].isListed) {
return uint256(Error.MARKET_NOT_LISTED);
}
/* If the redeemer is not 'in' the market, then we can bypass the liquidity check */
if (!markets[cToken].accountMembership[redeemer]) {
return uint256(Error.NO_ERROR);
}
/* Otherwise, perform a hypothetical liquidity check to guard against shortfall */
(Error err, , , uint256 shortfall) = getHypotheticalAccountLiquidityInternal(
redeemer,
ICErc20(cToken),
redeemTokens,
0,
0
);
if (err != Error.NO_ERROR) {
return uint256(err);
}
if (shortfall > 0) {
return uint256(Error.INSUFFICIENT_LIQUIDITY);
}
return uint256(Error.NO_ERROR);
}
/**
* @notice Validates mint and reverts on rejection. May emit logs.
* @param cToken Asset being minted
* @param minter The address minting the tokens
* @param actualMintAmount The amount of the underlying asset being minted
* @param mintTokens The number of tokens being minted
*/
function mintVerify(
address cToken,
address minter,
uint256 actualMintAmount,
uint256 mintTokens
) external {
// Add minter to suppliers mapping
suppliers[minter] = true;
}
/**
* @notice Validates redeem and reverts on rejection. May emit logs.
* @param cToken Asset being redeemed
* @param redeemer The address redeeming the tokens
* @param redeemAmount The amount of the underlying asset being redeemed
* @param redeemTokens The number of tokens being redeemed
*/
function redeemVerify(
address cToken,
address redeemer,
uint256 redeemAmount,
uint256 redeemTokens
) external override {
require(markets[msg.sender].isListed, "!market");
// Require tokens is zero or amount is also zero
if (redeemTokens == 0 && redeemAmount > 0) {
revert("!zero");
}
}
function getMaxRedeemOrBorrow(
address account,
ICErc20 cTokenModify,
bool isBorrow
) external view override returns (uint256) {
address cToken = address(cTokenModify);
// Accrue interest
uint256 balanceOfUnderlying = cTokenModify.balanceOfUnderlying(account);
// Get account liquidity
(Error err, , uint256 liquidity, uint256 shortfall) = getHypotheticalAccountLiquidityInternal(
account,
isBorrow ? cTokenModify : ICErc20(address(0)),
0,
0,
0
);
require(err == Error.NO_ERROR, "!liquidity");
if (shortfall > 0) return 0; // Shortfall, so no more borrow/redeem
// Get max borrow/redeem
uint256 maxBorrowOrRedeemAmount;
if (!isBorrow && !markets[cToken].accountMembership[account]) {
// Max redeem = balance of underlying if not used as collateral
maxBorrowOrRedeemAmount = balanceOfUnderlying;
} else {
// Avoid "stack too deep" error by separating this logic
maxBorrowOrRedeemAmount = _getMaxRedeemOrBorrow(liquidity, cTokenModify, isBorrow);
// Redeem only: max out at underlying balance
if (!isBorrow && balanceOfUnderlying < maxBorrowOrRedeemAmount) maxBorrowOrRedeemAmount = balanceOfUnderlying;
}
// Get max borrow or redeem considering cToken liquidity
uint256 cTokenLiquidity = cTokenModify.getCash();
// Return the minimum of the two maximums
return maxBorrowOrRedeemAmount <= cTokenLiquidity ? maxBorrowOrRedeemAmount : cTokenLiquidity;
}
/**
* @dev Portion of the logic in `getMaxRedeemOrBorrow` above separated to avoid "stack too deep" errors.
*/
function _getMaxRedeemOrBorrow(
uint256 liquidity,
ICErc20 cTokenModify,
bool isBorrow
) internal view returns (uint256) {
if (liquidity == 0) return 0; // No available account liquidity, so no more borrow/redeem
// Get the normalized price of the asset
uint256 conversionFactor = oracle.getUnderlyingPrice(cTokenModify);
require(conversionFactor > 0, "!oracle");
// Pre-compute a conversion factor from tokens -> ether (normalized price value)
if (!isBorrow) {
uint256 collateralFactorMantissa = markets[address(cTokenModify)].collateralFactorMantissa;
conversionFactor = (collateralFactorMantissa * conversionFactor) / 1e18;
}
// Get max borrow or redeem considering excess account liquidity
return (liquidity * 1e18) / conversionFactor;
}
/**
* @notice Checks if the account should be allowed to borrow the underlying asset of the given market
* @param cToken The market to verify the borrow against
* @param borrower The account which would borrow the asset
* @param borrowAmount The amount of underlying the account would borrow
* @return 0 if the borrow is allowed, otherwise a semi-opaque error code (See ErrorReporter.sol)
*/
function borrowAllowed(
address cToken,
address borrower,
uint256 borrowAmount
) external override returns (uint256) {
// Pausing is a very serious situation - we revert to sound the alarms
require(!borrowGuardianPaused[cToken], "!borrow:paused");
// Make sure market is listed
if (!markets[cToken].isListed) {
return uint256(Error.MARKET_NOT_LISTED);
}
if (!markets[cToken].accountMembership[borrower]) {
// only cTokens may call borrowAllowed if borrower not in market
require(msg.sender == cToken, "!ctoken");
// attempt to add borrower to the market
Error err = addToMarketInternal(ICErc20(msg.sender), borrower);
if (err != Error.NO_ERROR) {
return uint256(err);
}
// it should be impossible to break the important invariant
assert(markets[cToken].accountMembership[borrower]);
}
// Make sure oracle price is available
if (oracle.getUnderlyingPrice(ICErc20(cToken)) == 0) {
return uint256(Error.PRICE_ERROR);
}
// Make sure borrower is whitelisted
if (enforceWhitelist && !whitelist[borrower]) {
return uint256(Error.SUPPLIER_NOT_WHITELISTED);
}
// Check borrow cap
uint256 borrowCap = borrowCaps[cToken];
// Borrow cap of 0 corresponds to unlimited borrowing
if (borrowCap != 0 && !borrowCapWhitelist[cToken].contains(borrower)) {
uint256 totalBorrows = ICErc20(cToken).totalBorrowsCurrent();
uint256 whitelistedBorrowersBorrows = asComptrollerExtension().getWhitelistedBorrowersBorrows(cToken);
uint256 nonWhitelistedTotalBorrows;
if (whitelistedBorrowersBorrows >= totalBorrows) nonWhitelistedTotalBorrows = 0;
else nonWhitelistedTotalBorrows = totalBorrows - whitelistedBorrowersBorrows;
require(nonWhitelistedTotalBorrows + borrowAmount < borrowCap, "!borrow:cap");
}
// Keep the flywheel moving
flywheelPreBorrowerAction(cToken, borrower);
// Perform a hypothetical liquidity check to guard against shortfall
(uint256 err, , , uint256 shortfall) = this.getHypotheticalAccountLiquidity(borrower, cToken, 0, borrowAmount, 0);
if (err != uint256(Error.NO_ERROR)) {
return err;
}
if (shortfall > 0) {
return uint256(Error.INSUFFICIENT_LIQUIDITY);
}
return uint256(Error.NO_ERROR);
}
/**
* @notice Checks if the account should be allowed to borrow the underlying asset of the given market
* @param cToken Asset whose underlying is being borrowed
* @param accountBorrowsNew The user's new borrow balance of the underlying asset
*/
function borrowWithinLimits(address cToken, uint256 accountBorrowsNew) external view override returns (uint256) {
// Check if min borrow exists
uint256 minBorrowEth = IFeeDistributor(ionicAdmin).minBorrowEth();
if (minBorrowEth > 0) {
// Get new underlying borrow balance of account for this cToken
uint256 oraclePriceMantissa = oracle.getUnderlyingPrice(ICErc20(cToken));
if (oraclePriceMantissa == 0) return uint256(Error.PRICE_ERROR);
(MathError mathErr, uint256 borrowBalanceEth) = mulScalarTruncate(
Exp({ mantissa: oraclePriceMantissa }),
accountBorrowsNew
);
if (mathErr != MathError.NO_ERROR) return uint256(Error.MATH_ERROR);
// Check against min borrow
if (borrowBalanceEth < minBorrowEth) return uint256(Error.BORROW_BELOW_MIN);
}
// Return no error
return uint256(Error.NO_ERROR);
}
/**
* @notice Checks if the account should be allowed to repay a borrow in the given market
* @param cToken The market to verify the repay against
* @param payer The account which would repay the asset
* @param borrower The account which would borrowed the asset
* @param repayAmount The amount of the underlying asset the account would repay
* @return 0 if the repay is allowed, otherwise a semi-opaque error code (See ErrorReporter.sol)
*/
function repayBorrowAllowed(
address cToken,
address payer,
address borrower,
uint256 repayAmount
) external override returns (uint256) {
// Make sure market is listed
if (!markets[cToken].isListed) {
return uint256(Error.MARKET_NOT_LISTED);
}
// Keep the flywheel moving
flywheelPreBorrowerAction(cToken, borrower);
return uint256(Error.NO_ERROR);
}
/**
* @notice Checks if the liquidation should be allowed to occur
* @param cTokenBorrowed Asset which was borrowed by the borrower
* @param cTokenCollateral Asset which was used as collateral and will be seized
* @param liquidator The address repaying the borrow and seizing the collateral
* @param borrower The address of the borrower
* @param repayAmount The amount of underlying being repaid
*/
function liquidateBorrowAllowed(
address cTokenBorrowed,
address cTokenCollateral,
address liquidator,
address borrower,
uint256 repayAmount
) external override returns (uint256) {
// Make sure markets are listed
if (!markets[cTokenBorrowed].isListed || !markets[cTokenCollateral].isListed) {
return uint256(Error.MARKET_NOT_LISTED);
}
// Get borrowers' underlying borrow balance
uint256 borrowBalance = ICErc20(cTokenBorrowed).borrowBalanceCurrent(borrower);
/* allow accounts to be liquidated if the market is deprecated */
if (isDeprecated(ICErc20(cTokenBorrowed))) {
require(borrowBalance >= repayAmount, "!borrow>repay");
} else {
/* The borrower must have shortfall in order to be liquidateable */
(Error err, , , uint256 shortfall) = getHypotheticalAccountLiquidityInternal(
borrower,
ICErc20(address(0)),
0,
0,
0
);
if (err != Error.NO_ERROR) {
return uint256(err);
}
if (shortfall == 0) {
return uint256(Error.INSUFFICIENT_SHORTFALL);
}
/* The liquidator may not repay more than what is allowed by the closeFactor */
uint256 maxClose = mul_ScalarTruncate(Exp({ mantissa: closeFactorMantissa }), borrowBalance);
if (repayAmount > maxClose) {
return uint256(Error.TOO_MUCH_REPAY);
}
}
return uint256(Error.NO_ERROR);
}
/**
* @notice Checks if the seizing of assets should be allowed to occur
* @param cTokenCollateral Asset which was used as collateral and will be seized
* @param cTokenBorrowed Asset which was borrowed by the borrower
* @param liquidator The address repaying the borrow and seizing the collateral
* @param borrower The address of the borrower
* @param seizeTokens The number of collateral tokens to seize
*/
function seizeAllowed(
address cTokenCollateral,
address cTokenBorrowed,
address liquidator,
address borrower,
uint256 seizeTokens
) external override returns (uint256) {
// Pausing is a very serious situation - we revert to sound the alarms
require(!seizeGuardianPaused, "!seize:paused");
// Make sure markets are listed
if (!markets[cTokenCollateral].isListed || !markets[cTokenBorrowed].isListed) {
return uint256(Error.MARKET_NOT_LISTED);
}
// Make sure cToken Comptrollers are identical
if (ICErc20(cTokenCollateral).comptroller() != ICErc20(cTokenBorrowed).comptroller()) {
return uint256(Error.COMPTROLLER_MISMATCH);
}
// Keep the flywheel moving
flywheelPreTransferAction(cTokenCollateral, borrower, liquidator);
return uint256(Error.NO_ERROR);
}
/**
* @notice Checks if the account should be allowed to transfer tokens in the given market
* @param cToken The market to verify the transfer against
* @param src The account which sources the tokens
* @param dst The account which receives the tokens
* @param transferTokens The number of cTokens to transfer
* @return 0 if the transfer is allowed, otherwise a semi-opaque error code (See ErrorReporter.sol)
*/
function transferAllowed(
address cToken,
address src,
address dst,
uint256 transferTokens
) external override returns (uint256) {
// Pausing is a very serious situation - we revert to sound the alarms
require(!transferGuardianPaused, "!transfer:paused");
// Currently the only consideration is whether or not
// the src is allowed to redeem this many tokens
uint256 allowed = redeemAllowedInternal(cToken, src, transferTokens);
if (allowed != uint256(Error.NO_ERROR)) {
return allowed;
}
// Keep the flywheel moving
flywheelPreTransferAction(cToken, src, dst);
return uint256(Error.NO_ERROR);
}
/*** Flywheel Hooks ***/
/**
* @notice Keeps the flywheel moving pre-mint and pre-redeem
* @param cToken The relevant market
* @param supplier The minter/redeemer
*/
function flywheelPreSupplierAction(address cToken, address supplier) internal {
for (uint256 i = 0; i < rewardsDistributors.length; i++)
IIonicFlywheel(rewardsDistributors[i]).flywheelPreSupplierAction(cToken, supplier);
}
/**
* @notice Keeps the flywheel moving pre-borrow and pre-repay
* @param cToken The relevant market
* @param borrower The borrower
*/
function flywheelPreBorrowerAction(address cToken, address borrower) internal {
for (uint256 i = 0; i < rewardsDistributors.length; i++)
IIonicFlywheel(rewardsDistributors[i]).flywheelPreBorrowerAction(cToken, borrower);
}
/**
* @notice Keeps the flywheel moving pre-transfer and pre-seize
* @param cToken The relevant market
* @param src The account which sources the tokens
* @param dst The account which receives the tokens
*/
function flywheelPreTransferAction(
address cToken,
address src,
address dst
) internal {
for (uint256 i = 0; i < rewardsDistributors.length; i++)
IIonicFlywheel(rewardsDistributors[i]).flywheelPreTransferAction(cToken, src, dst);
}
/*** Liquidity/Liquidation Calculations ***/
/**
* @dev Local vars for avoiding stack-depth limits in calculating account liquidity.
* Note that `cTokenBalance` is the number of cTokens the account owns in the market,
* whereas `borrowBalance` is the amount of underlying that the account has borrowed.
*/
struct AccountLiquidityLocalVars {
ICErc20 asset;
uint256 sumCollateral;
uint256 sumBorrowPlusEffects;
uint256 cTokenBalance;
uint256 borrowBalance;
uint256 exchangeRateMantissa;
uint256 oraclePriceMantissa;
Exp collateralFactor;
Exp exchangeRate;
Exp oraclePrice;
Exp tokensToDenom;
uint256 borrowCapForCollateral;
uint256 borrowedAssetPrice;
uint256 assetAsCollateralValueCap;
}
function getAccountLiquidity(address account)
public
view
override
returns (
uint256,
uint256,
uint256,
uint256
)
{
(
Error err,
uint256 collateralValue,
uint256 liquidity,
uint256 shortfall
) = getHypotheticalAccountLiquidityInternal(account, ICErc20(address(0)), 0, 0, 0);
return (uint256(err), collateralValue, liquidity, shortfall);
}
/**
* @notice Determine what the account liquidity would be if the given amounts were redeemed/borrowed
* @param cTokenModify The market to hypothetically redeem/borrow in
* @param account The account to determine liquidity for
* @param redeemTokens The number of tokens to hypothetically redeem
* @param borrowAmount The amount of underlying to hypothetically borrow
* @return (possible error code (semi-opaque),
hypothetical account liquidity in excess of collateral requirements,
* hypothetical account shortfall below collateral requirements)
*/
function getHypotheticalAccountLiquidity(
address account,
address cTokenModify,
uint256 redeemTokens,
uint256 borrowAmount,
uint256 repayAmount
)
public
view
returns (
uint256,
uint256,
uint256,
uint256
)
{
(
Error err,
uint256 collateralValue,
uint256 liquidity,
uint256 shortfall
) = getHypotheticalAccountLiquidityInternal(
account,
ICErc20(cTokenModify),
redeemTokens,
borrowAmount,
repayAmount
);
return (uint256(err), collateralValue, liquidity, shortfall);
}
/**
* @notice Determine what the account liquidity would be if the given amounts were redeemed/borrowed
* @param cTokenModify The market to hypothetically redeem/borrow in
* @param account The account to determine liquidity for
* @param redeemTokens The number of tokens to hypothetically redeem
* @param borrowAmount The amount of underlying to hypothetically borrow
* @return (possible error code,
hypothetical account collateral value,
hypothetical account liquidity in excess of collateral requirements,
* hypothetical account shortfall below collateral requirements)
*/
function getHypotheticalAccountLiquidityInternal(
address account,
ICErc20 cTokenModify,
uint256 redeemTokens,
uint256 borrowAmount,
uint256 repayAmount
)
internal
view
returns (
Error,
uint256,
uint256,
uint256
)
{
AccountLiquidityLocalVars memory vars; // Holds all our calculation results
if (address(cTokenModify) != address(0)) {
vars.borrowedAssetPrice = oracle.getUnderlyingPrice(cTokenModify);
}
// For each asset the account is in
for (uint256 i = 0; i < accountAssets[account].length; i++) {
vars.asset = accountAssets[account][i];
{
// Read the balances and exchange rate from the cToken
uint256 oErr;
(oErr, vars.cTokenBalance, vars.borrowBalance, vars.exchangeRateMantissa) = vars.asset.getAccountSnapshot(
account
);
if (oErr != 0) {
// semi-opaque error code, we assume NO_ERROR == 0 is invariant between upgrades
return (Error.SNAPSHOT_ERROR, 0, 0, 0);
}
}
{
vars.collateralFactor = Exp({ mantissa: markets[address(vars.asset)].collateralFactorMantissa });
vars.exchangeRate = Exp({ mantissa: vars.exchangeRateMantissa });
// Get the normalized price of the asset
vars.oraclePriceMantissa = oracle.getUnderlyingPrice(vars.asset);
if (vars.oraclePriceMantissa == 0) {
return (Error.PRICE_ERROR, 0, 0, 0);
}
vars.oraclePrice = Exp({ mantissa: vars.oraclePriceMantissa });
// Pre-compute a conversion factor from tokens -> ether (normalized price value)
vars.tokensToDenom = mul_(mul_(vars.collateralFactor, vars.exchangeRate), vars.oraclePrice);
}
{
// Exclude the asset-to-be-borrowed from the liquidity, except for when redeeming
vars.assetAsCollateralValueCap = asComptrollerExtension().getAssetAsCollateralValueCap(
vars.asset,
cTokenModify,
redeemTokens > 0,
account
);
// accumulate the collateral value to sumCollateral
uint256 assetCollateralValue = mul_ScalarTruncate(vars.tokensToDenom, vars.cTokenBalance);
if (assetCollateralValue > vars.assetAsCollateralValueCap)
assetCollateralValue = vars.assetAsCollateralValueCap;
vars.sumCollateral += assetCollateralValue;
}
// sumBorrowPlusEffects += oraclePrice * borrowBalance
vars.sumBorrowPlusEffects = mul_ScalarTruncateAddUInt(
vars.oraclePrice,
vars.borrowBalance,
vars.sumBorrowPlusEffects
);
// Calculate effects of interacting with cTokenModify
if (vars.asset == cTokenModify) {
// redeem effect
// sumBorrowPlusEffects += tokensToDenom * redeemTokens
vars.sumBorrowPlusEffects = mul_ScalarTruncateAddUInt(
vars.tokensToDenom,
redeemTokens,
vars.sumBorrowPlusEffects
);
// borrow effect
// sumBorrowPlusEffects += oraclePrice * borrowAmount
vars.sumBorrowPlusEffects = mul_ScalarTruncateAddUInt(
vars.oraclePrice,
borrowAmount,
vars.sumBorrowPlusEffects
);
uint256 repayEffect = mul_ScalarTruncate(vars.oraclePrice, repayAmount);
if (repayEffect >= vars.sumBorrowPlusEffects) {
vars.sumBorrowPlusEffects = 0;
} else {
vars.sumBorrowPlusEffects -= repayEffect;
}
}
}
// These are safe, as the underflow condition is checked first
if (vars.sumCollateral > vars.sumBorrowPlusEffects) {
return (Error.NO_ERROR, vars.sumCollateral, vars.sumCollateral - vars.sumBorrowPlusEffects, 0);
} else {
return (Error.NO_ERROR, vars.sumCollateral, 0, vars.sumBorrowPlusEffects - vars.sumCollateral);
}
}
/**
* @notice Calculate number of tokens of collateral asset to seize given an underlying amount
* @dev Used in liquidation (called in cToken.liquidateBorrowFresh)
* @param cTokenBorrowed The address of the borrowed cToken
* @param cTokenCollateral The address of the collateral cToken
* @param actualRepayAmount The amount of cTokenBorrowed underlying to convert into cTokenCollateral tokens
* @return (errorCode, number of cTokenCollateral tokens to be seized in a liquidation)
*/
function liquidateCalculateSeizeTokens(
address cTokenBorrowed,
address cTokenCollateral,
uint256 actualRepayAmount
) external view override returns (uint256, uint256) {
/* Read oracle prices for borrowed and collateral markets */
uint256 priceBorrowedMantissa = oracle.getUnderlyingPrice(ICErc20(cTokenBorrowed));
uint256 priceCollateralMantissa = oracle.getUnderlyingPrice(ICErc20(cTokenCollateral));
if (priceBorrowedMantissa == 0 || priceCollateralMantissa == 0) {
return (uint256(Error.PRICE_ERROR), 0);
}
/*
* Get the exchange rate and calculate the number of collateral tokens to seize:
* seizeAmount = actualRepayAmount * liquidationIncentive * priceBorrowed / priceCollateral
* seizeTokens = seizeAmount / exchangeRate
* = actualRepayAmount * (liquidationIncentive * priceBorrowed) / (priceCollateral * exchangeRate)
*/
ICErc20 collateralCToken = ICErc20(cTokenCollateral);
uint256 exchangeRateMantissa = collateralCToken.exchangeRateCurrent();
uint256 seizeTokens;
Exp memory numerator;
Exp memory denominator;
Exp memory ratio;
uint256 protocolSeizeShareMantissa = collateralCToken.protocolSeizeShareMantissa();
uint256 feeSeizeShareMantissa = collateralCToken.feeSeizeShareMantissa();
/*
* The liquidation penalty includes
* - the liquidator incentive
* - the protocol fees (Ionic admin fees)
* - the market fee
*/
Exp memory totalPenaltyMantissa = add_(
add_(Exp({ mantissa: liquidationIncentiveMantissa }), Exp({ mantissa: protocolSeizeShareMantissa })),
Exp({ mantissa: feeSeizeShareMantissa })
);
numerator = mul_(totalPenaltyMantissa, Exp({ mantissa: priceBorrowedMantissa }));
denominator = mul_(Exp({ mantissa: priceCollateralMantissa }), Exp({ mantissa: exchangeRateMantissa }));
ratio = div_(numerator, denominator);
seizeTokens = mul_ScalarTruncate(ratio, actualRepayAmount);
return (uint256(Error.NO_ERROR), seizeTokens);
}
/*** Admin Functions ***/
/**
* @notice Add a RewardsDistributor contracts.
* @dev Admin function to add a RewardsDistributor contract
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _addRewardsDistributor(address distributor) external returns (uint256) {
require(hasAdminRights(), "!admin");
// Check marker method
require(IIonicFlywheel(distributor).isRewardsDistributor(), "!isRewardsDistributor");
// Check for existing RewardsDistributor
for (uint256 i = 0; i < rewardsDistributors.length; i++) require(distributor != rewardsDistributors[i], "!added");
// Add RewardsDistributor to array
rewardsDistributors.push(distributor);
emit AddedRewardsDistributor(distributor);
return uint256(Error.NO_ERROR);
}
/**
* @notice Sets the whitelist enforcement for the comptroller
* @dev Admin function to set a new whitelist enforcement boolean
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setWhitelistEnforcement(bool enforce) external returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SET_WHITELIST_ENFORCEMENT_OWNER_CHECK);
}
// Check if `enforceWhitelist` already equals `enforce`
if (enforceWhitelist == enforce) {
return uint256(Error.NO_ERROR);
}
// Set comptroller's `enforceWhitelist` to `enforce`
enforceWhitelist = enforce;
// Emit WhitelistEnforcementChanged(bool enforce);
emit WhitelistEnforcementChanged(enforce);
return uint256(Error.NO_ERROR);
}
/**
* @notice Sets the whitelist `statuses` for `suppliers`
* @dev Admin function to set the whitelist `statuses` for `suppliers`
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setWhitelistStatuses(address[] calldata suppliers, bool[] calldata statuses) external returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SET_WHITELIST_STATUS_OWNER_CHECK);
}
// Set whitelist statuses for suppliers
for (uint256 i = 0; i < suppliers.length; i++) {
address supplier = suppliers[i];
if (statuses[i]) {
// If not already whitelisted, add to whitelist
if (!whitelist[supplier]) {
whitelist[supplier] = true;
whitelistArray.push(supplier);
whitelistIndexes[supplier] = whitelistArray.length - 1;
}
} else {
// If whitelisted, remove from whitelist
if (whitelist[supplier]) {
whitelistArray[whitelistIndexes[supplier]] = whitelistArray[whitelistArray.length - 1]; // Copy last item in list to location of item to be removed
whitelistArray.pop(); // Reduce length by 1
whitelistIndexes[whitelistArray[whitelistIndexes[supplier]]] = whitelistIndexes[supplier]; // Set whitelist index of moved item to correct index
whitelistIndexes[supplier] = 0; // Reset supplier whitelist index to 0 for a gas refund
whitelist[supplier] = false; // Tell the contract that the supplier is no longer whitelisted
}
}
}
return uint256(Error.NO_ERROR);
}
/**
* @notice Sets a new price oracle for the comptroller
* @dev Admin function to set a new price oracle
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setPriceOracle(BasePriceOracle newOracle) public returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SET_PRICE_ORACLE_OWNER_CHECK);
}
// Track the old oracle for the comptroller
BasePriceOracle oldOracle = oracle;
// Set comptroller's oracle to newOracle
oracle = newOracle;
// Emit NewPriceOracle(oldOracle, newOracle)
emit NewPriceOracle(oldOracle, newOracle);
return uint256(Error.NO_ERROR);
}
/**
* @notice Sets the closeFactor used when liquidating borrows
* @dev Admin function to set closeFactor
* @param newCloseFactorMantissa New close factor, scaled by 1e18
* @return uint 0=success, otherwise a failure. (See ErrorReporter for details)
*/
function _setCloseFactor(uint256 newCloseFactorMantissa) external returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SET_CLOSE_FACTOR_OWNER_CHECK);
}
// Check limits
Exp memory newCloseFactorExp = Exp({ mantissa: newCloseFactorMantissa });
Exp memory lowLimit = Exp({ mantissa: closeFactorMinMantissa });
if (lessThanOrEqualExp(newCloseFactorExp, lowLimit)) {
return fail(Error.INVALID_CLOSE_FACTOR, FailureInfo.SET_CLOSE_FACTOR_VALIDATION);
}
Exp memory highLimit = Exp({ mantissa: closeFactorMaxMantissa });
if (lessThanExp(highLimit, newCloseFactorExp)) {
return fail(Error.INVALID_CLOSE_FACTOR, FailureInfo.SET_CLOSE_FACTOR_VALIDATION);
}
// Set pool close factor to new close factor, remember old value
uint256 oldCloseFactorMantissa = closeFactorMantissa;
closeFactorMantissa = newCloseFactorMantissa;
// Emit event
emit NewCloseFactor(oldCloseFactorMantissa, closeFactorMantissa);
return uint256(Error.NO_ERROR);
}
/**
* @notice Sets the collateralFactor for a market
* @dev Admin function to set per-market collateralFactor
* @param cToken The market to set the factor on
* @param newCollateralFactorMantissa The new collateral factor, scaled by 1e18
* @return uint 0=success, otherwise a failure. (See ErrorReporter for details)
*/
function _setCollateralFactor(ICErc20 cToken, uint256 newCollateralFactorMantissa) public returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SET_COLLATERAL_FACTOR_OWNER_CHECK);
}
// Verify market is listed
Market storage market = markets[address(cToken)];
if (!market.isListed) {
return fail(Error.MARKET_NOT_LISTED, FailureInfo.SET_COLLATERAL_FACTOR_NO_EXISTS);
}
Exp memory newCollateralFactorExp = Exp({ mantissa: newCollateralFactorMantissa });
// Check collateral factor <= 0.9
Exp memory highLimit = Exp({ mantissa: collateralFactorMaxMantissa });
if (lessThanExp(highLimit, newCollateralFactorExp)) {
return fail(Error.INVALID_COLLATERAL_FACTOR, FailureInfo.SET_COLLATERAL_FACTOR_VALIDATION);
}
// If collateral factor != 0, fail if price == 0
if (newCollateralFactorMantissa != 0 && oracle.getUnderlyingPrice(cToken) == 0) {
return fail(Error.PRICE_ERROR, FailureInfo.SET_COLLATERAL_FACTOR_WITHOUT_PRICE);
}
// Set market's collateral factor to new collateral factor, remember old value
uint256 oldCollateralFactorMantissa = market.collateralFactorMantissa;
market.collateralFactorMantissa = newCollateralFactorMantissa;
// Emit event with asset, old collateral factor, and new collateral factor
emit NewCollateralFactor(cToken, oldCollateralFactorMantissa, newCollateralFactorMantissa);
return uint256(Error.NO_ERROR);
}
/**
* @notice Sets liquidationIncentive
* @dev Admin function to set liquidationIncentive
* @param newLiquidationIncentiveMantissa New liquidationIncentive scaled by 1e18
* @return uint 0=success, otherwise a failure. (See ErrorReporter for details)
*/
function _setLiquidationIncentive(uint256 newLiquidationIncentiveMantissa) external returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SET_LIQUIDATION_INCENTIVE_OWNER_CHECK);
}
// Check de-scaled min <= newLiquidationIncentive <= max
Exp memory newLiquidationIncentive = Exp({ mantissa: newLiquidationIncentiveMantissa });
Exp memory minLiquidationIncentive = Exp({ mantissa: liquidationIncentiveMinMantissa });
if (lessThanExp(newLiquidationIncentive, minLiquidationIncentive)) {
return fail(Error.INVALID_LIQUIDATION_INCENTIVE, FailureInfo.SET_LIQUIDATION_INCENTIVE_VALIDATION);
}
Exp memory maxLiquidationIncentive = Exp({ mantissa: liquidationIncentiveMaxMantissa });
if (lessThanExp(maxLiquidationIncentive, newLiquidationIncentive)) {
return fail(Error.INVALID_LIQUIDATION_INCENTIVE, FailureInfo.SET_LIQUIDATION_INCENTIVE_VALIDATION);
}
// Save current value for use in log
uint256 oldLiquidationIncentiveMantissa = liquidationIncentiveMantissa;
// Set liquidation incentive to new incentive
liquidationIncentiveMantissa = newLiquidationIncentiveMantissa;
// Emit event with old incentive, new incentive
emit NewLiquidationIncentive(oldLiquidationIncentiveMantissa, newLiquidationIncentiveMantissa);
return uint256(Error.NO_ERROR);
}
/**
* @notice Add the market to the markets mapping and set it as listed
* @dev Admin function to set isListed and add support for the market
* @param cToken The address of the market (token) to list
* @return uint 0=success, otherwise a failure. (See enum Error for details)
*/
function _supportMarket(ICErc20 cToken) internal returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SUPPORT_MARKET_OWNER_CHECK);
}
// Is market already listed?
if (markets[address(cToken)].isListed) {
return fail(Error.MARKET_ALREADY_LISTED, FailureInfo.SUPPORT_MARKET_EXISTS);
}
// Check cToken.comptroller == this
require(address(cToken.comptroller()) == address(this), "!comptroller");
// Make sure market is not already listed
address underlying = ICErc20(address(cToken)).underlying();
if (address(cTokensByUnderlying[underlying]) != address(0)) {
return fail(Error.MARKET_ALREADY_LISTED, FailureInfo.SUPPORT_MARKET_EXISTS);
}
// List market and emit event
Market storage market = markets[address(cToken)];
market.isListed = true;
market.collateralFactorMantissa = 0;
allMarkets.push(cToken);
cTokensByUnderlying[underlying] = cToken;
emit MarketListed(cToken);
return uint256(Error.NO_ERROR);
}
/**
* @notice Deploy cToken, add the market to the markets mapping, and set it as listed and set the collateral factor
* @dev Admin function to deploy cToken, set isListed, and add support for the market and set the collateral factor
* @return uint 0=success, otherwise a failure. (See enum Error for details)
*/
function _deployMarket(
uint8 delegateType,
bytes calldata constructorData,
bytes calldata becomeImplData,
uint256 collateralFactorMantissa
) external returns (uint256) {
// Check caller is admin
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SUPPORT_MARKET_OWNER_CHECK);
}
// Temporarily enable Ionic admin rights for asset deployment (storing the original value)
bool oldIonicAdminHasRights = ionicAdminHasRights;
ionicAdminHasRights = true;
// Deploy via Ionic admin
ICErc20 cToken = ICErc20(IFeeDistributor(ionicAdmin).deployCErc20(delegateType, constructorData, becomeImplData));
// Reset Ionic admin rights to the original value
ionicAdminHasRights = oldIonicAdminHasRights;
// Support market here in the Comptroller
uint256 err = _supportMarket(cToken);
IFeeDistributor(ionicAdmin).authoritiesRegistry().reconfigureAuthority(address(this));
// Set collateral factor
return err == uint256(Error.NO_ERROR) ? _setCollateralFactor(cToken, collateralFactorMantissa) : err;
}
function _becomeImplementation() external {
require(msg.sender == address(this), "!self call");
if (!_notEnteredInitialized) {
_notEntered = true;
_notEnteredInitialized = true;
}
}
/*** Helper Functions ***/
/**
* @notice Returns true if the given cToken market has been deprecated
* @dev All borrows in a deprecated cToken market can be immediately liquidated
* @param cToken The market to check if deprecated
*/
function isDeprecated(ICErc20 cToken) public view returns (bool) {
return
markets[address(cToken)].collateralFactorMantissa == 0 &&
borrowGuardianPaused[address(cToken)] == true &&
add_(add_(cToken.reserveFactorMantissa(), cToken.adminFeeMantissa()), cToken.ionicFeeMantissa()) == 1e18;
}
function asComptrollerExtension() internal view returns (ComptrollerExtensionInterface) {
return ComptrollerExtensionInterface(address(this));
}
function _getExtensionFunctions() external pure virtual override returns (bytes4[] memory functionSelectors) {
uint8 fnsCount = 30;
functionSelectors = new bytes4[](fnsCount);
functionSelectors[--fnsCount] = this.isDeprecated.selector;
functionSelectors[--fnsCount] = this._deployMarket.selector;
functionSelectors[--fnsCount] = this.getAssetsIn.selector;
functionSelectors[--fnsCount] = this.checkMembership.selector;
functionSelectors[--fnsCount] = this._setPriceOracle.selector;
functionSelectors[--fnsCount] = this._setCloseFactor.selector;
functionSelectors[--fnsCount] = this._setCollateralFactor.selector;
functionSelectors[--fnsCount] = this._setLiquidationIncentive.selector;
functionSelectors[--fnsCount] = this._setWhitelistEnforcement.selector;
functionSelectors[--fnsCount] = this._setWhitelistStatuses.selector;
functionSelectors[--fnsCount] = this._addRewardsDistributor.selector;
functionSelectors[--fnsCount] = this.getHypotheticalAccountLiquidity.selector;
functionSelectors[--fnsCount] = this.getMaxRedeemOrBorrow.selector;
functionSelectors[--fnsCount] = this.enterMarkets.selector;
functionSelectors[--fnsCount] = this.exitMarket.selector;
functionSelectors[--fnsCount] = this.mintAllowed.selector;
functionSelectors[--fnsCount] = this.redeemAllowed.selector;
functionSelectors[--fnsCount] = this.redeemVerify.selector;
functionSelectors[--fnsCount] = this.borrowAllowed.selector;
functionSelectors[--fnsCount] = this.borrowWithinLimits.selector;
functionSelectors[--fnsCount] = this.repayBorrowAllowed.selector;
functionSelectors[--fnsCount] = this.liquidateBorrowAllowed.selector;
functionSelectors[--fnsCount] = this.seizeAllowed.selector;
functionSelectors[--fnsCount] = this.transferAllowed.selector;
functionSelectors[--fnsCount] = this.mintVerify.selector;
functionSelectors[--fnsCount] = this.getAccountLiquidity.selector;
functionSelectors[--fnsCount] = this.liquidateCalculateSeizeTokens.selector;
functionSelectors[--fnsCount] = this._beforeNonReentrant.selector;
functionSelectors[--fnsCount] = this._afterNonReentrant.selector;
functionSelectors[--fnsCount] = this._becomeImplementation.selector;
require(fnsCount == 0, "use the correct array length");
}
/*** Pool-Wide/Cross-Asset Reentrancy Prevention ***/
/**
* @dev Called by cTokens before a non-reentrant function for pool-wide reentrancy prevention.
* Prevents pool-wide/cross-asset reentrancy exploits like AMP on Cream.
*/
function _beforeNonReentrant() external override {
require(markets[msg.sender].isListed, "!Comptroller:_beforeNonReentrant");
require(_notEntered, "!reentered");
_notEntered = false;
}
/**
* @dev Called by cTokens after a non-reentrant function for pool-wide reentrancy prevention.
* Prevents pool-wide/cross-asset reentrancy exploits like AMP on Cream.
*/
function _afterNonReentrant() external override {
require(markets[msg.sender].isListed, "!Comptroller:_afterNonReentrant");
_notEntered = true; // get a gas-refund post-Istanbul
}
}
// contracts/compound/Unitroller.sol
/**
* @title Unitroller
* @dev Storage for the comptroller is at this address, while execution is delegated via the Diamond Extensions
* CTokens should reference this contract as their comptroller.
*/
contract Unitroller is ComptrollerV3Storage, ComptrollerErrorReporter, DiamondBase {
/**
* @notice Event emitted when the admin rights are changed
*/
event AdminRightsToggled(bool hasRights);
/**
* @notice Emitted when pendingAdmin is changed
*/
event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin);
/**
* @notice Emitted when pendingAdmin is accepted, which means admin is updated
*/
event NewAdmin(address oldAdmin, address newAdmin);
constructor(address payable _ionicAdmin) {
admin = msg.sender;
ionicAdmin = _ionicAdmin;
}
/*** Admin Functions ***/
/**
* @notice Toggles admin rights.
* @param hasRights Boolean indicating if the admin is to have rights.
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _toggleAdminRights(bool hasRights) external returns (uint256) {
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.TOGGLE_ADMIN_RIGHTS_OWNER_CHECK);
}
// Check that rights have not already been set to the desired value
if (adminHasRights == hasRights) return uint256(Error.NO_ERROR);
adminHasRights = hasRights;
emit AdminRightsToggled(hasRights);
return uint256(Error.NO_ERROR);
}
/**
* @notice Begins transfer of admin rights. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.
* @dev Admin function to begin change of admin. The newPendingAdmin must call `_acceptAdmin` to finalize the transfer.
* @param newPendingAdmin New pending admin.
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _setPendingAdmin(address newPendingAdmin) public returns (uint256) {
if (!hasAdminRights()) {
return fail(Error.UNAUTHORIZED, FailureInfo.SET_PENDING_ADMIN_OWNER_CHECK);
}
address oldPendingAdmin = pendingAdmin;
pendingAdmin = newPendingAdmin;
emit NewPendingAdmin(oldPendingAdmin, newPendingAdmin);
return uint256(Error.NO_ERROR);
}
/**
* @notice Accepts transfer of admin rights. msg.sender must be pendingAdmin
* @dev Admin function for pending admin to accept role and update admin
* @return uint 0=success, otherwise a failure (see ErrorReporter.sol for details)
*/
function _acceptAdmin() public returns (uint256) {
// Check caller is pendingAdmin and pendingAdmin ≠ address(0)
if (msg.sender != pendingAdmin || msg.sender == address(0)) {
return fail(Error.UNAUTHORIZED, FailureInfo.ACCEPT_ADMIN_PENDING_ADMIN_CHECK);
}
// Save current values for inclusion in log
address oldAdmin = admin;
address oldPendingAdmin = pendingAdmin;
admin = pendingAdmin;
pendingAdmin = address(0);
emit NewAdmin(oldAdmin, admin);
emit NewPendingAdmin(oldPendingAdmin, pendingAdmin);
return uint256(Error.NO_ERROR);
}
function comptrollerImplementation() public view returns (address) {
return LibDiamond.getExtensionForFunction(bytes4(keccak256(bytes("_deployMarket(uint8,bytes,bytes,uint256)"))));
}
/**
* @dev upgrades the implementation if necessary
*/
function _upgrade() external {
require(msg.sender == address(this) || hasAdminRights(), "!self || !admin");
address currentImplementation = comptrollerImplementation();
address latestComptrollerImplementation = IFeeDistributor(ionicAdmin).latestComptrollerImplementation(
currentImplementation
);
_updateExtensions(latestComptrollerImplementation);
if (currentImplementation != latestComptrollerImplementation) {
// reinitialize
_functionCall(address(this), abi.encodeWithSignature("_becomeImplementation()"), "!become impl");
}
}
function _functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.call(data);
if (!success) {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
return returndata;
}
function _updateExtensions(address currentComptroller) internal {
address[] memory latestExtensions = IFeeDistributor(ionicAdmin).getComptrollerExtensions(currentComptroller);
address[] memory currentExtensions = LibDiamond.listExtensions();
// removed the current (old) extensions
for (uint256 i = 0; i < currentExtensions.length; i++) {
LibDiamond.removeExtension(DiamondExtension(currentExtensions[i]));
}
// add the new extensions
for (uint256 i = 0; i < latestExtensions.length; i++) {
LibDiamond.addExtension(DiamondExtension(latestExtensions[i]));
}
}
/**
* @dev register a logic extension
* @param extensionToAdd the extension whose functions are to be added
* @param extensionToReplace the extension whose functions are to be removed/replaced
*/
function _registerExtension(DiamondExtension extensionToAdd, DiamondExtension extensionToReplace) external override {
require(hasAdminRights(), "!unauthorized");
LibDiamond.registerExtension(extensionToAdd, extensionToReplace);
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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payable","name":"_ionicAdmin","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"bytes4","name":"_functionSelector","type":"bytes4"},{"internalType":"address","name":"_currentImpl","type":"address"}],"name":"FunctionAlreadyAdded","type":"error"},{"inputs":[{"internalType":"bytes4","name":"_functionSelector","type":"bytes4"}],"name":"FunctionNotFound","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"hasRights","type":"bool"}],"name":"AdminRightsToggled","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"error","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"info","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"detail","type":"uint256"}],"name":"Failure","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"NewAdmin","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldPendingAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newPendingAdmin","type":"address"}],"name":"NewPendingAdmin","type":"event"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[],"name":"_acceptAdmin","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"_borrowGuardianPaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_listExtensions","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_mintGuardianPaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract 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Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000009bad1f7685f33ad855ae81089dfe79040864e2f6
-----Decoded View---------------
Arg [0] : _ionicAdmin (address): 0x9BAD1f7685f33ad855AE81089dFe79040864E2F6
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000009bad1f7685f33ad855ae81089dfe79040864e2f6
Deployed Bytecode Sourcemap
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Swarm Source
ipfs://6d27bdd6055b4fafdaf793b6b20665d7878fc0baf5ee4a380485a394f1a5224c
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Multichain Portfolio | 30 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
|---|
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.