编译器
0.8.21+commit.d9974bed
文件 1 的 22：Address.sol
pragma solidity ^0.8.1;
library Address {
function isContract(address account) internal view returns (bool) {
return account.code.length > 0;
}
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");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
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");
}
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);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
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);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
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);
}
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
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 {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
文件 2 的 22：Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 3 的 22：ERC20.sol
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
文件 4 的 22：IDualOracle.sol
pragma solidity 0.8.21;
import { IERC165 } from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
interface IDualOracle is IERC165 {
function ORACLE_PRECISION() external view returns (uint256);
function BASE_TOKEN_0() external view returns (address);
function BASE_TOKEN_0_DECIMALS() external view returns (uint256);
function BASE_TOKEN_1() external view returns (address);
function BASE_TOKEN_1_DECIMALS() external view returns (uint256);
function decimals() external view returns (uint8);
function getPricesNormalized() external view returns (bool _isBadData, uint256 _priceLow, uint256 _priceHigh);
function getPrices() external view returns (bool _isBadData, uint256 _priceLow, uint256 _priceHigh);
function name() external view returns (string memory);
function NORMALIZATION_0() external view returns (int256);
function NORMALIZATION_1() external view returns (int256);
function QUOTE_TOKEN_0() external view returns (address);
function QUOTE_TOKEN_0_DECIMALS() external view returns (uint256);
function QUOTE_TOKEN_1() external view returns (address);
function QUOTE_TOKEN_1_DECIMALS() external view returns (uint256);
}
文件 5 的 22：IERC165.sol
pragma solidity ^0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
文件 6 的 22：IERC20.sol
pragma solidity ^0.8.0;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
文件 7 的 22：IERC20Metadata.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
文件 8 的 22：IERC20Permit.sol
pragma solidity ^0.8.0;
interface IERC20Permit {
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
function nonces(address owner) external view returns (uint256);
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
文件 9 的 22：IRateCalculatorV2.sol
pragma solidity ^0.8.21;
interface IRateCalculatorV2 {
function name() external view returns (string memory);
function version() external view returns (uint256, uint256, uint256);
function getNewRate(
uint256 _deltaTime,
uint256 _utilization,
uint64 _maxInterest
) external view returns (uint64 _newRatePerSec, uint64 _newMaxInterest);
}
文件 10 的 22：ISwapper.sol
pragma solidity >=0.8.21;
interface ISwapper {
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
}
文件 11 的 22：Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 12 的 22：Ownable2Step.sol
pragma solidity ^0.8.0;
import "./Ownable.sol";
abstract contract Ownable2Step is Ownable {
address private _pendingOwner;
event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);
function pendingOwner() public view virtual returns (address) {
return _pendingOwner;
}
function transferOwnership(address newOwner) public virtual override onlyOwner {
_pendingOwner = newOwner;
emit OwnershipTransferStarted(owner(), newOwner);
}
function _transferOwnership(address newOwner) internal virtual override {
delete _pendingOwner;
super._transferOwnership(newOwner);
}
function acceptOwnership() public virtual {
address sender = _msgSender();
require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
_transferOwnership(sender);
}
}
文件 13 的 22：ReentrancyGuard.sol
pragma solidity ^0.8.0;
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
_status = _ENTERED;
}
function _nonReentrantAfter() private {
_status = _NOT_ENTERED;
}
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
文件 14 的 22：SafeCast.sol
pragma solidity ^0.8.0;
library SafeCast {
function toUint248(uint256 value) internal pure returns (uint248) {
require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits");
return uint248(value);
}
function toUint240(uint256 value) internal pure returns (uint240) {
require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits");
return uint240(value);
}
function toUint232(uint256 value) internal pure returns (uint232) {
require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits");
return uint232(value);
}
function toUint224(uint256 value) internal pure returns (uint224) {
require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
return uint224(value);
}
function toUint216(uint256 value) internal pure returns (uint216) {
require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits");
return uint216(value);
}
function toUint208(uint256 value) internal pure returns (uint208) {
require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits");
return uint208(value);
}
function toUint200(uint256 value) internal pure returns (uint200) {
require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits");
return uint200(value);
}
function toUint192(uint256 value) internal pure returns (uint192) {
require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits");
return uint192(value);
}
function toUint184(uint256 value) internal pure returns (uint184) {
require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
return uint184(value);
}
function toUint176(uint256 value) internal pure returns (uint176) {
require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits");
return uint176(value);
}
function toUint168(uint256 value) internal pure returns (uint168) {
require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits");
return uint168(value);
}
function toUint160(uint256 value) internal pure returns (uint160) {
require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits");
return uint160(value);
}
function toUint152(uint256 value) internal pure returns (uint152) {
require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits");
return uint152(value);
}
function toUint144(uint256 value) internal pure returns (uint144) {
require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits");
return uint144(value);
}
function toUint136(uint256 value) internal pure returns (uint136) {
require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits");
return uint136(value);
}
function toUint128(uint256 value) internal pure returns (uint128) {
require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
return uint128(value);
}
function toUint120(uint256 value) internal pure returns (uint120) {
require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits");
return uint120(value);
}
function toUint112(uint256 value) internal pure returns (uint112) {
require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits");
return uint112(value);
}
function toUint104(uint256 value) internal pure returns (uint104) {
require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits");
return uint104(value);
}
function toUint96(uint256 value) internal pure returns (uint96) {
require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
return uint96(value);
}
function toUint88(uint256 value) internal pure returns (uint88) {
require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits");
return uint88(value);
}
function toUint80(uint256 value) internal pure returns (uint80) {
require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits");
return uint80(value);
}
function toUint72(uint256 value) internal pure returns (uint72) {
require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits");
return uint72(value);
}
function toUint64(uint256 value) internal pure returns (uint64) {
require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
return uint64(value);
}
function toUint56(uint256 value) internal pure returns (uint56) {
require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits");
return uint56(value);
}
function toUint48(uint256 value) internal pure returns (uint48) {
require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
return uint48(value);
}
function toUint40(uint256 value) internal pure returns (uint40) {
require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits");
return uint40(value);
}
function toUint32(uint256 value) internal pure returns (uint32) {
require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
return uint32(value);
}
function toUint24(uint256 value) internal pure returns (uint24) {
require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits");
return uint24(value);
}
function toUint16(uint256 value) internal pure returns (uint16) {
require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
return uint16(value);
}
function toUint8(uint256 value) internal pure returns (uint8) {
require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
return uint8(value);
}
function toUint256(int256 value) internal pure returns (uint256) {
require(value >= 0, "SafeCast: value must be positive");
return uint256(value);
}
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
require(downcasted == value, "SafeCast: value doesn't fit in 248 bits");
}
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
require(downcasted == value, "SafeCast: value doesn't fit in 240 bits");
}
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
require(downcasted == value, "SafeCast: value doesn't fit in 232 bits");
}
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
require(downcasted == value, "SafeCast: value doesn't fit in 224 bits");
}
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
require(downcasted == value, "SafeCast: value doesn't fit in 216 bits");
}
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
require(downcasted == value, "SafeCast: value doesn't fit in 208 bits");
}
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
require(downcasted == value, "SafeCast: value doesn't fit in 200 bits");
}
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
require(downcasted == value, "SafeCast: value doesn't fit in 192 bits");
}
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
require(downcasted == value, "SafeCast: value doesn't fit in 184 bits");
}
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
require(downcasted == value, "SafeCast: value doesn't fit in 176 bits");
}
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
require(downcasted == value, "SafeCast: value doesn't fit in 168 bits");
}
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
require(downcasted == value, "SafeCast: value doesn't fit in 160 bits");
}
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
require(downcasted == value, "SafeCast: value doesn't fit in 152 bits");
}
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
require(downcasted == value, "SafeCast: value doesn't fit in 144 bits");
}
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
require(downcasted == value, "SafeCast: value doesn't fit in 136 bits");
}
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
require(downcasted == value, "SafeCast: value doesn't fit in 128 bits");
}
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
require(downcasted == value, "SafeCast: value doesn't fit in 120 bits");
}
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
require(downcasted == value, "SafeCast: value doesn't fit in 112 bits");
}
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
require(downcasted == value, "SafeCast: value doesn't fit in 104 bits");
}
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
require(downcasted == value, "SafeCast: value doesn't fit in 96 bits");
}
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
require(downcasted == value, "SafeCast: value doesn't fit in 88 bits");
}
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
require(downcasted == value, "SafeCast: value doesn't fit in 80 bits");
}
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
require(downcasted == value, "SafeCast: value doesn't fit in 72 bits");
}
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
require(downcasted == value, "SafeCast: value doesn't fit in 64 bits");
}
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
require(downcasted == value, "SafeCast: value doesn't fit in 56 bits");
}
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
require(downcasted == value, "SafeCast: value doesn't fit in 48 bits");
}
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
require(downcasted == value, "SafeCast: value doesn't fit in 40 bits");
}
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
require(downcasted == value, "SafeCast: value doesn't fit in 32 bits");
}
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
require(downcasted == value, "SafeCast: value doesn't fit in 24 bits");
}
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
require(downcasted == value, "SafeCast: value doesn't fit in 16 bits");
}
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
require(downcasted == value, "SafeCast: value doesn't fit in 8 bits");
}
function toInt256(uint256 value) internal pure returns (int256) {
require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
return int256(value);
}
}
文件 15 的 22：SafeERC20.sol
pragma solidity ^0.8.21;
import { IERC20 } from "@openzeppelin/contracts/interfaces/IERC20.sol";
import { SafeERC20 as OZSafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
library SafeERC20 {
bytes4 private constant SIG_SYMBOL = 0x95d89b41;
bytes4 private constant SIG_NAME = 0x06fdde03;
bytes4 private constant SIG_DECIMALS = 0x313ce567;
function returnDataToString(bytes memory data) internal pure returns (string memory) {
if (data.length >= 64) {
return abi.decode(data, (string));
} else if (data.length == 32) {
uint8 i = 0;
while (i < 32 && data[i] != 0) {
i++;
}
bytes memory bytesArray = new bytes(i);
for (i = 0; i < 32 && data[i] != 0; i++) {
bytesArray[i] = data[i];
}
return string(bytesArray);
} else {
return "???";
}
}
function safeSymbol(IERC20 token) internal view returns (string memory) {
(bool success, bytes memory data) = address(token).staticcall(abi.encodeWithSelector(SIG_SYMBOL));
return success ? returnDataToString(data) : "???";
}
function safeName(IERC20 token) internal view returns (string memory) {
(bool success, bytes memory data) = address(token).staticcall(abi.encodeWithSelector(SIG_NAME));
return success ? returnDataToString(data) : "???";
}
function safeDecimals(IERC20 token) internal view returns (uint8) {
(bool success, bytes memory data) = address(token).staticcall(abi.encodeWithSelector(SIG_DECIMALS));
return success && data.length == 32 ? abi.decode(data, (uint8)) : 18;
}
function safeTransfer(IERC20 token, address to, uint256 value) internal {
OZSafeERC20.safeTransfer(token, to, value);
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
OZSafeERC20.safeTransferFrom(token, from, to, value);
}
}
文件 16 的 22：SturdyPair.sol
pragma solidity ^0.8.21;
import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IERC20Metadata } from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { SafeCast } from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import { SturdyPairCore } from "./SturdyPairCore.sol";
import { SafeERC20 } from "./libraries/SafeERC20.sol";
import { VaultAccount, VaultAccountingLibrary } from "./libraries/VaultAccount.sol";
import { IRateCalculatorV2 } from "./interfaces/IRateCalculatorV2.sol";
contract SturdyPair is IERC20Metadata, SturdyPairCore {
using VaultAccountingLibrary for VaultAccount;
using SafeERC20 for IERC20;
using SafeCast for uint256;
constructor(
bytes memory _configData,
bytes memory _immutables,
bytes memory _customConfigData
) SturdyPairCore(_configData, _immutables, _customConfigData) {}
function name() public view override(ERC20, IERC20Metadata) returns (string memory) {
return nameOfContract;
}
function symbol() public view override(ERC20, IERC20Metadata) returns (string memory) {
return symbolOfContract;
}
function decimals() public view override(ERC20, IERC20Metadata) returns (uint8) {
return decimalsOfContract;
}
function totalSupply() public view override(ERC20, IERC20) returns (uint256) {
return totalAsset.shares;
}
function asset() external view returns (address) {
return address(assetContract);
}
function getConstants()
external
pure
returns (
uint256 _LTV_PRECISION,
uint256 _LIQ_PRECISION,
uint256 _UTIL_PREC,
uint256 _FEE_PRECISION,
uint256 _EXCHANGE_PRECISION,
uint256 _DEVIATION_PRECISION,
uint256 _RATE_PRECISION,
uint256 _MAX_PROTOCOL_FEE
)
{
_LTV_PRECISION = LTV_PRECISION;
_LIQ_PRECISION = LIQ_PRECISION;
_UTIL_PREC = UTIL_PREC;
_FEE_PRECISION = FEE_PRECISION;
_EXCHANGE_PRECISION = EXCHANGE_PRECISION;
_DEVIATION_PRECISION = DEVIATION_PRECISION;
_RATE_PRECISION = RATE_PRECISION;
_MAX_PROTOCOL_FEE = MAX_PROTOCOL_FEE;
}
function getUserSnapshot(
address _address
) external view returns (uint256 _userAssetShares, uint256 _userBorrowShares, uint256 _userCollateralBalance) {
_userAssetShares = balanceOf(_address);
_userBorrowShares = userBorrowShares[_address];
_userCollateralBalance = userCollateralBalance[_address];
}
function getPairAccounting()
external
view
returns (
uint128 _totalAssetAmount,
uint128 _totalAssetShares,
uint128 _totalBorrowAmount,
uint128 _totalBorrowShares,
uint256 _totalCollateral
)
{
(, , , , VaultAccount memory _totalAsset, VaultAccount memory _totalBorrow) = previewAddInterest();
_totalAssetAmount = _totalAsset.amount;
_totalAssetShares = _totalAsset.shares;
_totalBorrowAmount = _totalBorrow.amount;
_totalBorrowShares = _totalBorrow.shares;
_totalCollateral = totalCollateral;
}
function toBorrowShares(
uint256 _amount,
bool _roundUp,
bool _previewInterest
) external view returns (uint256 _shares) {
if (_previewInterest) {
(, , , , , VaultAccount memory _totalBorrow) = previewAddInterest();
_shares = _totalBorrow.toShares(_amount, _roundUp);
} else {
_shares = totalBorrow.toShares(_amount, _roundUp);
}
}
function toBorrowAmount(
uint256 _shares,
bool _roundUp,
bool _previewInterest
) external view returns (uint256 _amount) {
if (_previewInterest) {
(, , , , , VaultAccount memory _totalBorrow) = previewAddInterest();
_amount = _totalBorrow.toAmount(_shares, _roundUp);
} else {
_amount = totalBorrow.toAmount(_shares, _roundUp);
}
}
function toAssetAmount(
uint256 _shares,
bool _roundUp,
bool _previewInterest
) public view returns (uint256 _amount) {
if (_previewInterest) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
_amount = _totalAsset.toAmount(_shares, _roundUp);
} else {
_amount = totalAsset.toAmount(_shares, _roundUp);
}
}
function toAssetShares(
uint256 _amount,
bool _roundUp,
bool _previewInterest
) public view returns (uint256 _shares) {
if (_previewInterest) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
_shares = _totalAsset.toShares(_amount, _roundUp);
} else {
_shares = totalAsset.toShares(_amount, _roundUp);
}
}
function convertToAssets(uint256 _shares) external view returns (uint256 _assets) {
_assets = toAssetAmount(_shares, false, true);
}
function convertToShares(uint256 _assets) external view returns (uint256 _shares) {
_shares = toAssetShares(_assets, false, true);
}
function pricePerShare() external view returns (uint256 _amount) {
_amount = toAssetAmount(1e18, false, true);
}
function totalAssets() external view returns (uint256) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
return _totalAsset.amount;
}
function maxDeposit(address _receiver) public view returns (uint256 _maxAssets) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
_maxAssets = _totalAsset.amount >= depositLimit ? 0 : depositLimit - _totalAsset.amount;
}
function maxMint(address _receiver) external view returns (uint256 _maxShares) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
uint256 _maxDeposit = _totalAsset.amount >= depositLimit ? 0 : depositLimit - _totalAsset.amount;
_maxShares = _totalAsset.toShares(_maxDeposit, false);
}
function maxWithdraw(address _owner) external view returns (uint256 _maxAssets) {
if (isWithdrawPaused) return 0;
(
,
,
uint256 _feesShare,
,
VaultAccount memory _totalAsset,
VaultAccount memory _totalBorrow
) = previewAddInterest();
uint256 _ownerBalance = _owner == address(this) ? balanceOf(_owner) + _feesShare : balanceOf(_owner);
uint256 _totalAssetsAvailable = _totalAssetAvailable(_totalAsset, _totalBorrow);
uint256 _totalUserWithdraw = _totalAsset.toAmount(_ownerBalance, false);
_maxAssets = _totalAssetsAvailable < _totalUserWithdraw ? _totalAssetsAvailable : _totalUserWithdraw;
}
function maxRedeem(address _owner) external view returns (uint256 _maxShares) {
if (isWithdrawPaused) return 0;
(
,
,
uint256 _feesShare,
,
VaultAccount memory _totalAsset,
VaultAccount memory _totalBorrow
) = previewAddInterest();
uint256 _totalAssetsAvailable = _totalAssetAvailable(_totalAsset, _totalBorrow);
uint256 _totalSharesAvailable = _totalAsset.toShares(_totalAssetsAvailable, false);
uint256 _ownerBalance = _owner == address(this) ? balanceOf(_owner) + _feesShare : balanceOf(_owner);
_maxShares = _totalSharesAvailable < _ownerBalance ? _totalSharesAvailable : _ownerBalance;
}
event SetOracleInfo(
address oldOracle,
uint32 oldMaxOracleDeviation,
address newOracle,
uint32 newMaxOracleDeviation
);
function setOracle(address _newOracle, uint32 _newMaxOracleDeviation) external {
_requireTimelock();
ExchangeRateInfo memory _exchangeRateInfo = exchangeRateInfo;
emit SetOracleInfo(
_exchangeRateInfo.oracle,
_exchangeRateInfo.maxOracleDeviation,
_newOracle,
_newMaxOracleDeviation
);
_exchangeRateInfo.oracle = _newOracle;
_exchangeRateInfo.maxOracleDeviation = _newMaxOracleDeviation;
exchangeRateInfo = _exchangeRateInfo;
}
bool public isMaxLTVSetterRevoked;
event RevokeMaxLTVSetter();
function revokeMaxLTVSetter() external {
_requireTimelock();
isMaxLTVSetterRevoked = true;
emit RevokeMaxLTVSetter();
}
event SetMaxLTV(uint256 oldMaxLTV, uint256 newMaxLTV);
function setMaxLTV(uint256 _newMaxLTV) external {
_requireTimelock();
if (isMaxLTVSetterRevoked) revert SetterRevoked();
emit SetMaxLTV(maxLTV, _newMaxLTV);
maxLTV = _newMaxLTV;
}
event SetRateContract(address oldRateContract, address newRateContract);
function setRateContract(address _newRateContract) external {
_requireTimelock();
emit SetRateContract(address(rateContract), _newRateContract);
rateContract = IRateCalculatorV2(_newRateContract);
}
event SetLiquidationFees(
uint256 oldCleanLiquidationFee,
uint256 oldDirtyLiquidationFee,
uint256 oldProtocolLiquidationFee,
uint256 newCleanLiquidationFee,
uint256 newDirtyLiquidationFee,
uint256 newProtocolLiquidationFee
);
function setLiquidationFees(
uint256 _newCleanLiquidationFee,
uint256 _newDirtyLiquidationFee,
uint256 _newProtocolLiquidationFee
) external {
_requireTimelock();
emit SetLiquidationFees(
cleanLiquidationFee,
dirtyLiquidationFee,
protocolLiquidationFee,
_newCleanLiquidationFee,
_newDirtyLiquidationFee,
_newProtocolLiquidationFee
);
cleanLiquidationFee = _newCleanLiquidationFee;
dirtyLiquidationFee = _newDirtyLiquidationFee;
protocolLiquidationFee = _newProtocolLiquidationFee;
}
event ChangeFee(uint32 newFee);
function changeFee(uint32 _newFee) external {
_requireTimelock();
if (isInterestPaused) revert InterestPaused();
if (_newFee > MAX_PROTOCOL_FEE) {
revert BadProtocolFee();
}
_addInterest();
currentRateInfo.feeToProtocolRate = _newFee;
emit ChangeFee(_newFee);
}
event WithdrawFees(uint128 shares, address recipient, uint256 amountToTransfer, uint256 collateralAmount);
function withdrawFees(uint128 _shares, address _recipient) external onlyOwner returns (uint256 _amountToTransfer) {
if (_recipient == address(0)) revert InvalidReceiver();
VaultAccount memory _totalAsset = totalAsset;
if (_shares == 0) _shares = uint128(balanceOf(address(this)));
_amountToTransfer = _totalAsset.toAmount(_shares, true);
_approve(address(this), msg.sender, _shares);
_redeem(_totalAsset, _amountToTransfer.toUint128(), _shares, _recipient, address(this));
uint256 _collateralAmount = userCollateralBalance[address(this)];
_removeCollateral(_collateralAmount, _recipient, address(this));
emit WithdrawFees(_shares, _recipient, _amountToTransfer, _collateralAmount);
}
event SetSwapper(address swapper, bool approval);
function setSwapper(address _swapper, bool _approval) external onlyOwner {
swappers[_swapper] = _approval;
emit SetSwapper(_swapper, _approval);
}
function pause() external {
_requireProtocolOrOwner();
_setBorrowLimit(0);
_setDepositLimit(0);
if (!isRepayAccessControlRevoked) _pauseRepay(true);
if (!isWithdrawAccessControlRevoked) _pauseWithdraw(true);
if (!isLiquidateAccessControlRevoked) _pauseLiquidate(true);
_addInterest();
_pauseInterest(true);
}
function unpause() external {
_requireTimelockOrOwner();
_setBorrowLimit(type(uint256).max);
_setDepositLimit(type(uint256).max);
if (!isRepayAccessControlRevoked) _pauseRepay(false);
if (!isWithdrawAccessControlRevoked) _pauseWithdraw(false);
if (!isLiquidateAccessControlRevoked) _pauseLiquidate(false);
_addInterest();
_pauseInterest(false);
}
function pauseBorrow() external {
_requireProtocolOrOwner();
_setBorrowLimit(0);
}
function setBorrowLimit(uint256 _limit) external {
_requireTimelockOrOwner();
_setBorrowLimit(_limit);
}
function pauseDeposit() external {
_requireProtocolOrOwner();
_setDepositLimit(0);
}
function setDepositLimit(uint256 _limit) external {
_requireTimelockOrOwner();
_setDepositLimit(_limit);
}
function pauseRepay(bool _isPaused) external {
if (_isPaused) {
_requireProtocolOrOwner();
} else {
_requireTimelockOrOwner();
}
if (isRepayAccessControlRevoked) revert AccessControlRevoked();
_pauseRepay(_isPaused);
}
function revokeRepayAccessControl() external {
_requireTimelock();
_revokeRepayAccessControl();
}
function pauseWithdraw(bool _isPaused) external {
if (_isPaused) {
_requireProtocolOrOwner();
} else {
_requireTimelockOrOwner();
}
if (isWithdrawAccessControlRevoked) revert AccessControlRevoked();
_pauseWithdraw(_isPaused);
}
function revokeWithdrawAccessControl() external {
_requireTimelock();
_revokeWithdrawAccessControl();
}
function pauseLiquidate(bool _isPaused) external {
if (_isPaused) {
_requireProtocolOrOwner();
} else {
_requireTimelockOrOwner();
}
if (isLiquidateAccessControlRevoked) revert AccessControlRevoked();
_pauseLiquidate(_isPaused);
}
function revokeLiquidateAccessControl() external {
_requireTimelock();
_revokeLiquidateAccessControl();
}
function pauseInterest(bool _isPaused) external {
if (_isPaused) {
_requireProtocolOrOwner();
} else {
_requireTimelockOrOwner();
}
_addInterest();
_pauseInterest(_isPaused);
}
}
文件 17 的 22：SturdyPairAccessControl.sol
pragma solidity ^0.8.21;
import { Ownable2Step, Ownable } from "@openzeppelin/contracts/access/Ownable2Step.sol";
import { Timelock2Step } from "./Timelock2Step.sol";
import { SturdyPairAccessControlErrors } from "./SturdyPairAccessControlErrors.sol";
abstract contract SturdyPairAccessControl is Timelock2Step, Ownable2Step, SturdyPairAccessControlErrors {
address public immutable DEPLOYER_ADDRESS;
address public circuitBreakerAddress;
uint256 public borrowLimit = type(uint256).max;
uint256 public depositLimit = type(uint256).max;
bool public isRepayPaused;
bool public isRepayAccessControlRevoked;
bool public isWithdrawPaused;
bool public isWithdrawAccessControlRevoked;
bool public isLiquidatePaused;
bool public isLiquidateAccessControlRevoked;
bool public isInterestPaused;
constructor(bytes memory _immutables) Timelock2Step() Ownable2Step() {
(address _circuitBreakerAddress, address _comptrollerAddress, address _timelockAddress) = abi.decode(
_immutables,
(address, address, address)
);
_setTimelock(_timelockAddress);
_transferOwnership(_comptrollerAddress);
DEPLOYER_ADDRESS = msg.sender;
circuitBreakerAddress = _circuitBreakerAddress;
}
function _requireProtocolOrOwner() internal view {
if (
msg.sender != circuitBreakerAddress &&
msg.sender != owner() &&
msg.sender != DEPLOYER_ADDRESS &&
msg.sender != timelockAddress
) {
revert OnlyProtocolOrOwner();
}
}
function _requireTimelockOrOwner() internal view {
if (msg.sender != owner() && msg.sender != timelockAddress) {
revert OnlyTimelockOrOwner();
}
}
event SetBorrowLimit(uint256 limit);
function _setBorrowLimit(uint256 _limit) internal {
borrowLimit = _limit;
emit SetBorrowLimit(_limit);
}
event SetDepositLimit(uint256 limit);
function _setDepositLimit(uint256 _limit) internal {
depositLimit = _limit;
emit SetDepositLimit(_limit);
}
event RevokeRepayAccessControl();
function _revokeRepayAccessControl() internal {
isRepayAccessControlRevoked = true;
emit RevokeRepayAccessControl();
}
event PauseRepay(bool isPaused);
function _pauseRepay(bool _isPaused) internal {
isRepayPaused = _isPaused;
emit PauseRepay(_isPaused);
}
event RevokeWithdrawAccessControl();
function _revokeWithdrawAccessControl() internal {
isWithdrawAccessControlRevoked = true;
emit RevokeWithdrawAccessControl();
}
event PauseWithdraw(bool isPaused);
function _pauseWithdraw(bool _isPaused) internal {
isWithdrawPaused = _isPaused;
emit PauseWithdraw(_isPaused);
}
event RevokeLiquidateAccessControl();
function _revokeLiquidateAccessControl() internal {
isLiquidateAccessControlRevoked = true;
emit RevokeLiquidateAccessControl();
}
event PauseLiquidate(bool isPaused);
function _pauseLiquidate(bool _isPaused) internal {
isLiquidatePaused = _isPaused;
emit PauseLiquidate(_isPaused);
}
event PauseInterest(bool isPaused);
function _pauseInterest(bool _isPaused) internal {
isInterestPaused = _isPaused;
emit PauseInterest(_isPaused);
}
event SetCircuitBreaker(address oldCircuitBreaker, address newCircuitBreaker);
function _setCircuitBreaker(address _newCircuitBreaker) internal {
address oldCircuitBreaker = circuitBreakerAddress;
circuitBreakerAddress = _newCircuitBreaker;
emit SetCircuitBreaker(oldCircuitBreaker, _newCircuitBreaker);
}
function setCircuitBreaker(address _newCircuitBreaker) external virtual {
_requireTimelock();
_setCircuitBreaker(_newCircuitBreaker);
}
}
文件 18 的 22：SturdyPairAccessControlErrors.sol
pragma solidity ^0.8.21;
abstract contract SturdyPairAccessControlErrors {
error OnlyProtocolOrOwner();
error OnlyTimelockOrOwner();
error ExceedsBorrowLimit();
error AccessControlRevoked();
error RepayPaused();
error ExceedsDepositLimit();
error WithdrawPaused();
error LiquidatePaused();
error InterestPaused();
}
文件 19 的 22：SturdyPairConstants.sol
pragma solidity ^0.8.21;
abstract contract SturdyPairConstants {
uint256 internal constant LTV_PRECISION = 1e5;
uint256 internal constant LIQ_PRECISION = 1e5;
uint256 internal constant UTIL_PREC = 1e5;
uint256 internal constant FEE_PRECISION = 1e5;
uint256 internal constant EXCHANGE_PRECISION = 1e18;
uint256 internal constant DEVIATION_PRECISION = 1e5;
uint256 internal constant RATE_PRECISION = 1e18;
uint256 internal constant MAX_PROTOCOL_FEE = 5e4;
error Insolvent(uint256 _borrow, uint256 _collateral, uint256 _exchangeRate);
error BorrowerSolvent();
error InsufficientAssetsInContract(uint256 _assets, uint256 _request);
error SlippageTooHigh(uint256 _minOut, uint256 _actual);
error BadSwapper();
error InvalidPath(address _expected, address _actual);
error BadProtocolFee();
error PastDeadline(uint256 _blockTimestamp, uint256 _deadline);
error SetterRevoked();
error ExceedsMaxOracleDeviation();
error InvalidReceiver();
error InvalidOnBehalfOf();
error InvalidApproveBorrowDelegation();
error InvalidBorrower();
error InvalidDelegator();
}
文件 20 的 22：SturdyPairCore.sol
pragma solidity ^0.8.21;
import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { ReentrancyGuard } from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import { SafeCast } from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import { SturdyPairAccessControl } from "./SturdyPairAccessControl.sol";
import { SturdyPairConstants } from "./SturdyPairConstants.sol";
import { VaultAccount, VaultAccountingLibrary } from "./libraries/VaultAccount.sol";
import { SafeERC20 } from "./libraries/SafeERC20.sol";
import { IDualOracle } from "./interfaces/IDualOracle.sol";
import { IRateCalculatorV2 } from "./interfaces/IRateCalculatorV2.sol";
import { ISwapper } from "./interfaces/ISwapper.sol";
abstract contract SturdyPairCore is SturdyPairAccessControl, SturdyPairConstants, ERC20, ReentrancyGuard {
using VaultAccountingLibrary for VaultAccount;
using SafeERC20 for IERC20;
using SafeCast for uint256;
function version() external pure returns (uint256 _major, uint256 _minor, uint256 _patch) {
_major = 3;
_minor = 0;
_patch = 0;
}
IERC20 internal immutable assetContract;
IERC20 public immutable collateralContract;
uint256 public maxLTV;
uint256 public cleanLiquidationFee;
uint256 public dirtyLiquidationFee;
uint256 public protocolLiquidationFee;
IRateCalculatorV2 public rateContract;
mapping(address => bool) public swappers;
string internal nameOfContract;
string internal symbolOfContract;
uint8 internal immutable decimalsOfContract;
CurrentRateInfo public currentRateInfo;
struct CurrentRateInfo {
uint32 lastBlock;
uint32 feeToProtocolRate;
uint64 lastTimestamp;
uint64 ratePerSec;
uint64 fullUtilizationRate;
}
ExchangeRateInfo public exchangeRateInfo;
struct ExchangeRateInfo {
address oracle;
uint32 maxOracleDeviation;
uint184 lastTimestamp;
uint256 lowExchangeRate;
uint256 highExchangeRate;
}
VaultAccount public totalAsset;
VaultAccount public totalBorrow;
uint256 public totalCollateral;
mapping(address => uint256) public userCollateralBalance;
mapping(address => uint256) public userBorrowShares;
mapping(address => mapping(address => uint256)) public userBorrowAllowances;
mapping(address => bool) public whitelistedDelegators;
constructor(
bytes memory _configData,
bytes memory _immutables,
bytes memory _customConfigData
) SturdyPairAccessControl(_immutables) ERC20("", "") {
{
(
address _asset,
address _collateral,
address _oracle,
uint32 _maxOracleDeviation,
address _rateContract,
uint64 _fullUtilizationRate,
uint256 _maxLTV,
uint256 _liquidationFee,
uint256 _protocolLiquidationFee
) = abi.decode(
_configData,
(address, address, address, uint32, address, uint64, uint256, uint256, uint256)
);
assetContract = IERC20(_asset);
collateralContract = IERC20(_collateral);
currentRateInfo.feeToProtocolRate = 0;
currentRateInfo.fullUtilizationRate = _fullUtilizationRate;
currentRateInfo.lastTimestamp = uint64(block.timestamp - 1);
currentRateInfo.lastBlock = uint32(block.number - 1);
exchangeRateInfo.oracle = _oracle;
exchangeRateInfo.maxOracleDeviation = _maxOracleDeviation;
rateContract = IRateCalculatorV2(_rateContract);
cleanLiquidationFee = _liquidationFee;
dirtyLiquidationFee = (_liquidationFee * 90_000) / LIQ_PRECISION;
protocolLiquidationFee = _protocolLiquidationFee;
maxLTV = _maxLTV;
}
{
(string memory _nameOfContract, string memory _symbolOfContract, uint8 _decimalsOfContract) = abi.decode(
_customConfigData,
(string, string, uint8)
);
nameOfContract = _nameOfContract;
symbolOfContract = _symbolOfContract;
decimalsOfContract = _decimalsOfContract;
_addInterest();
_updateExchangeRate();
}
}
function _totalAssetAvailable(
VaultAccount memory _totalAsset,
VaultAccount memory _totalBorrow
) internal pure returns (uint256) {
return _totalAsset.amount - _totalBorrow.amount;
}
function _isSolvent(address _borrower, uint256 _exchangeRate) internal view returns (bool) {
if (maxLTV == 0) return true;
uint256 _borrowerAmount = totalBorrow.toAmount(userBorrowShares[_borrower], true);
if (_borrowerAmount == 0) return true;
uint256 _collateralAmount = userCollateralBalance[_borrower];
if (_collateralAmount == 0) return false;
uint256 _ltv = (((_borrowerAmount * _exchangeRate) / EXCHANGE_PRECISION) * LTV_PRECISION) / _collateralAmount;
return _ltv <= maxLTV;
}
modifier isSolvent(address _borrower) {
_;
ExchangeRateInfo memory _exchangeRateInfo = exchangeRateInfo;
if (!_isSolvent(_borrower, exchangeRateInfo.highExchangeRate)) {
revert Insolvent(
totalBorrow.toAmount(userBorrowShares[_borrower], true),
userCollateralBalance[_borrower],
exchangeRateInfo.highExchangeRate
);
}
}
event AddInterest(uint256 interestEarned, uint256 rate, uint256 feesAmount, uint256 feesShare);
event UpdateRate(
uint256 oldRatePerSec,
uint256 oldFullUtilizationRate,
uint256 newRatePerSec,
uint256 newFullUtilizationRate
);
function addInterest(
bool _returnAccounting
)
external
nonReentrant
returns (
uint256 _interestEarned,
uint256 _feesAmount,
uint256 _feesShare,
CurrentRateInfo memory _currentRateInfo,
VaultAccount memory _totalAsset,
VaultAccount memory _totalBorrow
)
{
(, _interestEarned, _feesAmount, _feesShare, _currentRateInfo) = _addInterest();
if (_returnAccounting) {
_totalAsset = totalAsset;
_totalBorrow = totalBorrow;
}
}
function previewAddInterest()
public
view
returns (
uint256 _interestEarned,
uint256 _feesAmount,
uint256 _feesShare,
CurrentRateInfo memory _newCurrentRateInfo,
VaultAccount memory _totalAsset,
VaultAccount memory _totalBorrow
)
{
_newCurrentRateInfo = currentRateInfo;
InterestCalculationResults memory _results = _calculateInterest(_newCurrentRateInfo);
if (_results.isInterestUpdated) {
_interestEarned = _results.interestEarned;
_feesAmount = _results.feesAmount;
_feesShare = _results.feesShare;
_newCurrentRateInfo.ratePerSec = _results.newRate;
_newCurrentRateInfo.fullUtilizationRate = _results.newFullUtilizationRate;
_totalAsset = _results.totalAsset;
_totalBorrow = _results.totalBorrow;
} else {
_totalAsset = totalAsset;
_totalBorrow = totalBorrow;
}
}
struct InterestCalculationResults {
bool isInterestUpdated;
uint64 newRate;
uint64 newFullUtilizationRate;
uint256 interestEarned;
uint256 feesAmount;
uint256 feesShare;
VaultAccount totalAsset;
VaultAccount totalBorrow;
}
function _calculateInterest(
CurrentRateInfo memory _currentRateInfo
) internal view returns (InterestCalculationResults memory _results) {
if (_currentRateInfo.lastTimestamp != block.timestamp && !isInterestPaused) {
_results.isInterestUpdated = true;
_results.totalAsset = totalAsset;
_results.totalBorrow = totalBorrow;
uint256 _deltaTime = block.timestamp - _currentRateInfo.lastTimestamp;
uint256 _utilizationRate = _results.totalAsset.amount == 0
? 0
: (UTIL_PREC * _results.totalBorrow.amount) / _results.totalAsset.amount;
(_results.newRate, _results.newFullUtilizationRate) = IRateCalculatorV2(rateContract).getNewRate(
_deltaTime,
_utilizationRate,
_currentRateInfo.fullUtilizationRate
);
_results.interestEarned = (_deltaTime * _results.totalBorrow.amount * _results.newRate) / RATE_PRECISION;
if (
_results.interestEarned > 0 &&
_results.interestEarned + _results.totalBorrow.amount <= type(uint128).max &&
_results.interestEarned + _results.totalAsset.amount <= type(uint128).max
) {
_results.totalBorrow.amount += uint128(_results.interestEarned);
_results.totalAsset.amount += uint128(_results.interestEarned);
if (_currentRateInfo.feeToProtocolRate > 0) {
_results.feesAmount =
(_results.interestEarned * _currentRateInfo.feeToProtocolRate) /
FEE_PRECISION;
_results.feesShare =
(_results.feesAmount * _results.totalAsset.shares) /
(_results.totalAsset.amount - _results.feesAmount);
_results.totalAsset.shares += uint128(_results.feesShare);
}
}
}
}
function _addInterest()
internal
returns (
bool _isInterestUpdated,
uint256 _interestEarned,
uint256 _feesAmount,
uint256 _feesShare,
CurrentRateInfo memory _currentRateInfo
)
{
_currentRateInfo = currentRateInfo;
InterestCalculationResults memory _results = _calculateInterest(_currentRateInfo);
if (_results.isInterestUpdated) {
_isInterestUpdated = _results.isInterestUpdated;
_interestEarned = _results.interestEarned;
_feesAmount = _results.feesAmount;
_feesShare = _results.feesShare;
emit UpdateRate(
_currentRateInfo.ratePerSec,
_currentRateInfo.fullUtilizationRate,
_results.newRate,
_results.newFullUtilizationRate
);
emit AddInterest(_interestEarned, _results.newRate, _feesAmount, _feesShare);
_currentRateInfo.ratePerSec = _results.newRate;
_currentRateInfo.fullUtilizationRate = _results.newFullUtilizationRate;
_currentRateInfo.lastTimestamp = uint64(block.timestamp);
_currentRateInfo.lastBlock = uint32(block.number);
currentRateInfo = _currentRateInfo;
totalAsset = _results.totalAsset;
totalBorrow = _results.totalBorrow;
if (_feesShare > 0) _mint(address(this), _feesShare);
}
}
event UpdateExchangeRate(uint256 lowExchangeRate, uint256 highExchangeRate);
event WarnOracleData(address oracle);
function updateExchangeRate()
external
nonReentrant
returns (bool _isBorrowAllowed, uint256 _lowExchangeRate, uint256 _highExchangeRate)
{
return _updateExchangeRate();
}
function _updateExchangeRate()
internal
returns (bool _isBorrowAllowed, uint256 _lowExchangeRate, uint256 _highExchangeRate)
{
ExchangeRateInfo memory _exchangeRateInfo = exchangeRateInfo;
if (_exchangeRateInfo.lastTimestamp != block.timestamp) {
bool _oneOracleBad;
(_oneOracleBad, _lowExchangeRate, _highExchangeRate) = IDualOracle(_exchangeRateInfo.oracle).getPrices();
if (_oneOracleBad) emit WarnOracleData(_exchangeRateInfo.oracle);
_exchangeRateInfo.lastTimestamp = uint184(block.timestamp);
_exchangeRateInfo.lowExchangeRate = _lowExchangeRate;
_exchangeRateInfo.highExchangeRate = _highExchangeRate;
exchangeRateInfo = _exchangeRateInfo;
emit UpdateExchangeRate(_lowExchangeRate, _highExchangeRate);
} else {
_lowExchangeRate = _exchangeRateInfo.lowExchangeRate;
_highExchangeRate = _exchangeRateInfo.highExchangeRate;
}
uint256 _deviation = (DEVIATION_PRECISION *
(_exchangeRateInfo.highExchangeRate - _exchangeRateInfo.lowExchangeRate)) /
_exchangeRateInfo.highExchangeRate;
if (_deviation <= _exchangeRateInfo.maxOracleDeviation) {
_isBorrowAllowed = true;
}
}
event Deposit(address indexed caller, address indexed owner, uint256 assets, uint256 shares);
function _deposit(VaultAccount memory _totalAsset, uint128 _amount, uint128 _shares, address _receiver) internal {
_totalAsset.amount += _amount;
_totalAsset.shares += _shares;
_mint(_receiver, _shares);
totalAsset = _totalAsset;
assetContract.safeTransferFrom(msg.sender, address(this), _amount);
emit Deposit(msg.sender, _receiver, _amount, _shares);
}
function previewDeposit(uint256 _assets) external view returns (uint256 _sharesReceived) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
_sharesReceived = _totalAsset.toShares(_assets, false);
}
function deposit(uint256 _amount, address _receiver) external nonReentrant returns (uint256 _sharesReceived) {
if (_receiver == address(0)) revert InvalidReceiver();
_addInterest();
VaultAccount memory _totalAsset = totalAsset;
if (depositLimit < _totalAsset.amount + _amount) revert ExceedsDepositLimit();
_sharesReceived = _totalAsset.toShares(_amount, false);
_deposit(_totalAsset, _amount.toUint128(), _sharesReceived.toUint128(), _receiver);
}
function previewMint(uint256 _shares) external view returns (uint256 _amount) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
_amount = _totalAsset.toAmount(_shares, false);
}
function mint(uint256 _shares, address _receiver) external nonReentrant returns (uint256 _amount) {
if (_receiver == address(0)) revert InvalidReceiver();
_addInterest();
VaultAccount memory _totalAsset = totalAsset;
_amount = _totalAsset.toAmount(_shares, false);
if (depositLimit < _totalAsset.amount + _amount) revert ExceedsDepositLimit();
_deposit(_totalAsset, _amount.toUint128(), _shares.toUint128(), _receiver);
}
event Withdraw(
address indexed caller,
address indexed receiver,
address indexed owner,
uint256 assets,
uint256 shares
);
function _redeem(
VaultAccount memory _totalAsset,
uint128 _amountToReturn,
uint128 _shares,
address _receiver,
address _owner
) internal {
if (msg.sender != _owner) {
uint256 allowed = allowance(_owner, msg.sender);
if (allowed != type(uint256).max) _approve(_owner, msg.sender, allowed - _shares);
}
uint256 _assetsAvailable = _totalAssetAvailable(_totalAsset, totalBorrow);
if (_assetsAvailable < _amountToReturn) {
revert InsufficientAssetsInContract(_assetsAvailable, _amountToReturn);
}
_totalAsset.amount -= _amountToReturn;
_totalAsset.shares -= _shares;
totalAsset = _totalAsset;
_burn(_owner, _shares);
assetContract.safeTransfer(_receiver, _amountToReturn);
emit Withdraw(msg.sender, _receiver, _owner, _amountToReturn, _shares);
}
function previewRedeem(uint256 _shares) external view returns (uint256 _assets) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
_assets = _totalAsset.toAmount(_shares, false);
}
function redeem(
uint256 _shares,
address _receiver,
address _owner
) external nonReentrant returns (uint256 _amountToReturn) {
if (_receiver == address(0)) revert InvalidReceiver();
if (isWithdrawPaused) revert WithdrawPaused();
_addInterest();
VaultAccount memory _totalAsset = totalAsset;
_amountToReturn = _totalAsset.toAmount(_shares, false);
_redeem(_totalAsset, _amountToReturn.toUint128(), _shares.toUint128(), _receiver, _owner);
}
function previewWithdraw(uint256 _amount) external view returns (uint256 _sharesToBurn) {
(, , , , VaultAccount memory _totalAsset, ) = previewAddInterest();
_sharesToBurn = _totalAsset.toShares(_amount, true);
}
function withdraw(
uint256 _amount,
address _receiver,
address _owner
) external nonReentrant returns (uint256 _sharesToBurn) {
if (_receiver == address(0)) revert InvalidReceiver();
if (isWithdrawPaused) revert WithdrawPaused();
_addInterest();
VaultAccount memory _totalAsset = totalAsset;
_sharesToBurn = _totalAsset.toShares(_amount, true);
_redeem(_totalAsset, _amount.toUint128(), _sharesToBurn.toUint128(), _receiver, _owner);
}
event BorrowAsset(
address indexed _borrower,
address indexed _receiver,
uint256 _borrowAmount,
uint256 _sharesAdded
);
function _borrowAsset(uint128 _borrowAmount, address _receiver) internal returns (uint256 _sharesAdded) {
VaultAccount memory _totalBorrow = totalBorrow;
uint256 _assetsAvailable = _totalAssetAvailable(totalAsset, _totalBorrow);
if (_assetsAvailable < _borrowAmount) {
revert InsufficientAssetsInContract(_assetsAvailable, _borrowAmount);
}
_sharesAdded = _totalBorrow.toShares(_borrowAmount, true);
_totalBorrow.amount += _borrowAmount;
_totalBorrow.shares += uint128(_sharesAdded);
totalBorrow = _totalBorrow;
userBorrowShares[msg.sender] += _sharesAdded;
if (_receiver != address(this)) {
assetContract.safeTransfer(_receiver, _borrowAmount);
}
emit BorrowAsset(msg.sender, _receiver, _borrowAmount, _sharesAdded);
}
function _borrowAssetOnBehalfOf(uint128 _borrowAmount, address _onBehalfOf) internal returns (uint256 _sharesAdded) {
VaultAccount memory _totalBorrow = totalBorrow;
uint256 _assetsAvailable = _totalAssetAvailable(totalAsset, _totalBorrow);
if (_assetsAvailable < _borrowAmount) {
revert InsufficientAssetsInContract(_assetsAvailable, _borrowAmount);
}
uint256 newAllowance = userBorrowAllowances[_onBehalfOf][msg.sender] - _borrowAmount;
userBorrowAllowances[_onBehalfOf][msg.sender] = newAllowance;
emit UserBorrowAllowanceDelegated(_onBehalfOf, msg.sender, newAllowance);
_sharesAdded = _totalBorrow.toShares(_borrowAmount, true);
_totalBorrow.amount += _borrowAmount;
_totalBorrow.shares += uint128(_sharesAdded);
totalBorrow = _totalBorrow;
userBorrowShares[_onBehalfOf] += _sharesAdded;
assetContract.safeTransfer(msg.sender, _borrowAmount);
emit BorrowAsset(_onBehalfOf, msg.sender, _borrowAmount, _sharesAdded);
}
function borrowAsset(
uint256 _borrowAmount,
uint256 _collateralAmount,
address _receiver
) external nonReentrant isSolvent(msg.sender) returns (uint256 _shares) {
if (_receiver == address(0)) revert InvalidReceiver();
_addInterest();
if (borrowLimit < totalBorrow.amount + _borrowAmount) revert ExceedsBorrowLimit();
(bool _isBorrowAllowed, , ) = _updateExchangeRate();
if (!_isBorrowAllowed) revert ExceedsMaxOracleDeviation();
if (_collateralAmount > 0) {
_addCollateral(msg.sender, _collateralAmount, msg.sender);
}
_shares = _borrowAsset(_borrowAmount.toUint128(), _receiver);
}
function borrowAssetOnBehalfOf(
uint256 _borrowAmount,
address _onBehalfOf
) external nonReentrant isSolvent(_onBehalfOf) returns (uint256 _shares) {
if (_onBehalfOf == address(0) || msg.sender == _onBehalfOf) revert InvalidOnBehalfOf();
_addInterest();
if (borrowLimit < totalBorrow.amount + _borrowAmount) revert ExceedsBorrowLimit();
(bool _isBorrowAllowed, , ) = _updateExchangeRate();
if (!_isBorrowAllowed) revert ExceedsMaxOracleDeviation();
_shares = _borrowAssetOnBehalfOf(_borrowAmount.toUint128(), _onBehalfOf);
}
event UserBorrowAllowanceDelegated(
address indexed _fromUser,
address indexed _toUser,
uint256 _amount
);
function approveBorrowDelegation(address _delegatee, uint256 _amount) external {
if ((_amount != 0) && (userBorrowAllowances[msg.sender][_delegatee] != 0)) {
revert InvalidApproveBorrowDelegation();
}
userBorrowAllowances[msg.sender][_delegatee] = _amount;
emit UserBorrowAllowanceDelegated(msg.sender, _delegatee, _amount);
}
event AddCollateral(address indexed sender, address indexed borrower, uint256 collateralAmount);
function _addCollateral(address _sender, uint256 _collateralAmount, address _borrower) internal {
userCollateralBalance[_borrower] += _collateralAmount;
totalCollateral += _collateralAmount;
if (_sender != address(this)) {
collateralContract.safeTransferFrom(_sender, address(this), _collateralAmount);
}
emit AddCollateral(_sender, _borrower, _collateralAmount);
}
function addCollateral(uint256 _collateralAmount, address _borrower) external nonReentrant {
if (_borrower == address(0)) revert InvalidReceiver();
_addInterest();
_addCollateral(msg.sender, _collateralAmount, _borrower);
}
event RemoveCollateral(
address indexed _sender,
uint256 _collateralAmount,
address indexed _receiver,
address indexed _borrower
);
function _removeCollateral(uint256 _collateralAmount, address _receiver, address _borrower) internal {
userCollateralBalance[_borrower] -= _collateralAmount;
totalCollateral -= _collateralAmount;
if (_receiver != address(this)) {
collateralContract.safeTransfer(_receiver, _collateralAmount);
}
emit RemoveCollateral(msg.sender, _collateralAmount, _receiver, _borrower);
}
function removeCollateral(
uint256 _collateralAmount,
address _receiver
) external nonReentrant isSolvent(msg.sender) {
if (_receiver == address(0)) revert InvalidReceiver();
_addInterest();
if (userBorrowShares[msg.sender] > 0) {
(bool _isBorrowAllowed, , ) = _updateExchangeRate();
if (!_isBorrowAllowed) revert ExceedsMaxOracleDeviation();
}
_removeCollateral(_collateralAmount, _receiver, msg.sender);
}
event SetWhitelistedDelegators(
address indexed _delegator,
bool _enabled
);
function setWhitelistedDelegators(address _delegator, bool _enabled) external payable onlyOwner {
whitelistedDelegators[_delegator] = _enabled;
emit SetWhitelistedDelegators(_delegator, _enabled);
}
function removeCollateralFrom(
uint256 _collateralAmount,
address _receiver,
address _borrower
) external payable nonReentrant isSolvent(_borrower) {
if(whitelistedDelegators[msg.sender] == false) revert InvalidDelegator();
if (_receiver == address(0)) revert InvalidReceiver();
if (_borrower == address(0)) revert InvalidBorrower();
_addInterest();
if (userBorrowShares[_borrower] > 0) {
(bool _isBorrowAllowed, , ) = _updateExchangeRate();
if (!_isBorrowAllowed) revert ExceedsMaxOracleDeviation();
}
_removeCollateral(_collateralAmount, _receiver, _borrower);
}
event RepayAsset(address indexed payer, address indexed borrower, uint256 amountToRepay, uint256 shares);
function _repayAsset(
VaultAccount memory _totalBorrow,
uint128 _amountToRepay,
uint128 _shares,
address _payer,
address _borrower
) internal {
_totalBorrow.amount -= _amountToRepay;
_totalBorrow.shares -= _shares;
userBorrowShares[_borrower] -= _shares;
totalBorrow = _totalBorrow;
if (_payer != address(this)) {
assetContract.safeTransferFrom(_payer, address(this), _amountToRepay);
}
emit RepayAsset(_payer, _borrower, _amountToRepay, _shares);
}
function repayAsset(uint256 _shares, address _borrower) external nonReentrant returns (uint256 _amountToRepay) {
if (_borrower == address(0)) revert InvalidReceiver();
if (isRepayPaused) revert RepayPaused();
_addInterest();
VaultAccount memory _totalBorrow = totalBorrow;
_amountToRepay = _totalBorrow.toAmount(_shares, true);
_repayAsset(_totalBorrow, _amountToRepay.toUint128(), _shares.toUint128(), msg.sender, _borrower);
}
event Liquidate(
address indexed _borrower,
uint256 _collateralForLiquidator,
uint256 _sharesToLiquidate,
uint256 _amountLiquidatorToRepay,
uint256 _feesAmount,
uint256 _sharesToAdjust,
uint256 _amountToAdjust
);
function liquidate(
uint128 _sharesToLiquidate,
uint256 _deadline,
address _borrower
) external nonReentrant returns (uint256 _collateralForLiquidator) {
if (_borrower == address(0)) revert InvalidReceiver();
if (isLiquidatePaused) revert LiquidatePaused();
if (block.timestamp > _deadline) revert PastDeadline(block.timestamp, _deadline);
_addInterest();
(, uint256 _exchangeRate, ) = _updateExchangeRate();
if (_isSolvent(_borrower, _exchangeRate)) {
revert BorrowerSolvent();
}
VaultAccount memory _totalBorrow = totalBorrow;
uint256 _userCollateralBalance = userCollateralBalance[_borrower];
uint128 _borrowerShares = userBorrowShares[_borrower].toUint128();
int256 _leftoverCollateral;
uint256 _feesAmount;
{
uint256 _liquidationAmountInCollateralUnits = ((_totalBorrow.toAmount(_sharesToLiquidate, false) *
_exchangeRate) / EXCHANGE_PRECISION);
uint256 _optimisticCollateralForLiquidator = (_liquidationAmountInCollateralUnits *
(LIQ_PRECISION + cleanLiquidationFee)) / LIQ_PRECISION;
_leftoverCollateral = (_userCollateralBalance.toInt256() - _optimisticCollateralForLiquidator.toInt256());
_collateralForLiquidator = _leftoverCollateral <= 0
? _userCollateralBalance
: (_liquidationAmountInCollateralUnits * (LIQ_PRECISION + dirtyLiquidationFee)) / LIQ_PRECISION;
if (protocolLiquidationFee > 0) {
_feesAmount = (protocolLiquidationFee * _collateralForLiquidator) / LIQ_PRECISION;
_collateralForLiquidator = _collateralForLiquidator - _feesAmount;
}
}
uint128 _amountLiquidatorToRepay = (_totalBorrow.toAmount(_sharesToLiquidate, true)).toUint128();
uint128 _sharesToAdjust = 0;
{
uint128 _amountToAdjust = 0;
if (_leftoverCollateral <= 0) {
_sharesToAdjust = _borrowerShares - _sharesToLiquidate;
if (_sharesToAdjust > 0) {
_amountToAdjust = (_totalBorrow.toAmount(_sharesToAdjust, false)).toUint128();
_totalBorrow.amount -= _amountToAdjust;
totalAsset.amount -= _amountToAdjust;
}
}
emit Liquidate(
_borrower,
_collateralForLiquidator,
_sharesToLiquidate,
_amountLiquidatorToRepay,
_feesAmount,
_sharesToAdjust,
_amountToAdjust
);
}
_repayAsset(
_totalBorrow,
_amountLiquidatorToRepay,
_sharesToLiquidate + _sharesToAdjust,
msg.sender,
_borrower
);
_removeCollateral(_collateralForLiquidator, msg.sender, _borrower);
_removeCollateral(_feesAmount, address(this), _borrower);
_addCollateral(address(this), _feesAmount, address(this));
}
event RepayAssetWithCollateral(
address indexed _borrower,
address _swapperAddress,
uint256 _collateralToSwap,
uint256 _amountAssetOut,
uint256 _sharesRepaid
);
function repayAssetWithCollateral(
address _swapperAddress,
uint256 _collateralToSwap,
uint256 _amountAssetOutMin,
address[] calldata _path
) external nonReentrant isSolvent(msg.sender) returns (uint256 _amountAssetOut) {
_addInterest();
(bool _isBorrowAllowed, , ) = _updateExchangeRate();
if (!_isBorrowAllowed) revert ExceedsMaxOracleDeviation();
IERC20 _assetContract = assetContract;
IERC20 _collateralContract = collateralContract;
if (!swappers[_swapperAddress]) {
revert BadSwapper();
}
if (_path[0] != address(_collateralContract)) {
revert InvalidPath(address(_collateralContract), _path[0]);
}
if (_path[_path.length - 1] != address(_assetContract)) {
revert InvalidPath(address(_assetContract), _path[_path.length - 1]);
}
_removeCollateral(_collateralToSwap, address(this), msg.sender);
_collateralContract.approve(_swapperAddress, _collateralToSwap);
uint256 _initialAssetBalance = _assetContract.balanceOf(address(this));
ISwapper(_swapperAddress).swapExactTokensForTokens(
_collateralToSwap,
_amountAssetOutMin,
_path,
address(this),
block.timestamp
);
uint256 _finalAssetBalance = _assetContract.balanceOf(address(this));
_amountAssetOut = _finalAssetBalance - _initialAssetBalance;
if (_amountAssetOut < _amountAssetOutMin) {
revert SlippageTooHigh(_amountAssetOutMin, _amountAssetOut);
}
VaultAccount memory _totalBorrow = totalBorrow;
uint256 _sharesToRepay = _totalBorrow.toShares(_amountAssetOut, false);
_repayAsset(_totalBorrow, _amountAssetOut.toUint128(), _sharesToRepay.toUint128(), address(this), msg.sender);
emit RepayAssetWithCollateral(msg.sender, _swapperAddress, _collateralToSwap, _amountAssetOut, _sharesToRepay);
}
}
文件 21 的 22：Timelock2Step.sol
pragma solidity ^0.8.21;
abstract contract Timelock2Step {
address public pendingTimelockAddress;
address public timelockAddress;
constructor() {
timelockAddress = msg.sender;
}
error OnlyTimelock();
error OnlyPendingTimelock();
event TimelockTransferStarted(address indexed previousTimelock, address indexed newTimelock);
event TimelockTransferred(address indexed previousTimelock, address indexed newTimelock);
function _isSenderTimelock() internal view returns (bool) {
return msg.sender == timelockAddress;
}
function _requireTimelock() internal view {
if (msg.sender != timelockAddress) revert OnlyTimelock();
}
function _isSenderPendingTimelock() internal view returns (bool) {
return msg.sender == pendingTimelockAddress;
}
function _requirePendingTimelock() internal view {
if (msg.sender != pendingTimelockAddress) revert OnlyPendingTimelock();
}
function _transferTimelock(address _newTimelock) internal {
pendingTimelockAddress = _newTimelock;
emit TimelockTransferStarted(timelockAddress, _newTimelock);
}
function _acceptTransferTimelock() internal {
pendingTimelockAddress = address(0);
_setTimelock(msg.sender);
}
function _setTimelock(address _newTimelock) internal {
emit TimelockTransferred(timelockAddress, _newTimelock);
timelockAddress = _newTimelock;
}
function transferTimelock(address _newTimelock) external virtual {
_requireTimelock();
_transferTimelock(_newTimelock);
}
function acceptTransferTimelock() external virtual {
_requirePendingTimelock();
_acceptTransferTimelock();
}
function renounceTimelock() external virtual {
_requireTimelock();
_requirePendingTimelock();
_transferTimelock(address(0));
_setTimelock(address(0));
}
}
文件 22 的 22：VaultAccount.sol
pragma solidity ^0.8.21;
struct VaultAccount {
uint128 amount;
uint128 shares;
}
library VaultAccountingLibrary {
function toShares(VaultAccount memory total, uint256 amount, bool roundUp) internal pure returns (uint256 shares) {
if (total.amount == 0) {
shares = amount;
} else {
shares = (amount * total.shares) / total.amount;
if (roundUp && (shares * total.amount) / total.shares < amount) {
shares = shares + 1;
}
}
}
function toAmount(VaultAccount memory total, uint256 shares, bool roundUp) internal pure returns (uint256 amount) {
if (total.shares == 0) {
amount = shares;
} else {
amount = (shares * total.amount) / total.shares;
if (roundUp && (amount * total.shares) / total.amount < shares) {
amount = amount + 1;
}
}
}
}
{
"compilationTarget": {
"contracts/src/SturdyPair.sol": "SturdyPair"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs",
"useLiteralContent": true
},
"optimizer": {
"enabled": true,
"runs": 1660
},
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