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| Approve | 92574308 | 4 days ago | IN | 0 MNT | 0.00370624 | ||||
| Approve | 92573596 | 4 days ago | IN | 0 MNT | 0.00370653 | ||||
| Approve | 92460521 | 7 days ago | IN | 0 MNT | 0.00163462 | ||||
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| Redeem Rewards | 88928018 | 89 days ago | IN | 0 MNT | 0.00940779 | ||||
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This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.
Contract Name:
PendleMarketV3
Compiler Version
v0.8.23+commit.f704f362
Optimization Enabled:
Yes with 11000 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.17;
import "../../../interfaces/IPMarketV3.sol";
import "../../../interfaces/IPMarketFactoryV3.sol";
import "../../../interfaces/IPMarketSwapCallback.sol";
import "../../erc20/PendleERC20.sol";
import "../PendleGauge.sol";
import "../OracleLib.sol";
/**
Invariance to maintain:
- Internal balances totalPt & totalSy not interfered by people transferring tokens in directly
- address(0) & address(this) should never have any rewards & activeBalance accounting done. This is
guaranteed by address(0) & address(this) check in each updateForTwo function
*/
contract PendleMarketV3 is PendleERC20, PendleGauge, IPMarketV3 {
using PMath for uint256;
using PMath for int256;
using MarketMathCore for MarketState;
using SafeERC20 for IERC20;
using PYIndexLib for IPYieldToken;
using OracleLib for OracleLib.Observation[65535];
struct MarketStorage {
int128 totalPt;
int128 totalSy;
// 1 SLOT = 256 bits
uint96 lastLnImpliedRate;
uint16 observationIndex;
uint16 observationCardinality;
uint16 observationCardinalityNext;
// 1 SLOT = 144 bits
}
string private constant NAME = "Pendle Market";
string private constant SYMBOL = "PENDLE-LPT";
IPPrincipalToken internal immutable PT;
IStandardizedYield internal immutable SY;
IPYieldToken internal immutable YT;
address public immutable factory;
uint256 public immutable expiry;
int256 internal immutable scalarRoot;
int256 internal immutable initialAnchor;
uint80 internal immutable lnFeeRateRoot;
MarketStorage public _storage;
OracleLib.Observation[65535] public observations;
modifier notExpired() {
if (isExpired()) revert Errors.MarketExpired();
_;
}
constructor(
address _PT,
int256 _scalarRoot,
int256 _initialAnchor,
uint80 _lnFeeRateRoot,
address _vePendle,
address _gaugeController
) PendleERC20(NAME, SYMBOL, 18) PendleGauge(IPPrincipalToken(_PT).SY(), _vePendle, _gaugeController) {
PT = IPPrincipalToken(_PT);
SY = IStandardizedYield(PT.SY());
YT = IPYieldToken(PT.YT());
(_storage.observationCardinality, _storage.observationCardinalityNext) = observations.initialize(
uint32(block.timestamp)
);
if (_scalarRoot <= 0) revert Errors.MarketScalarRootBelowZero(_scalarRoot);
scalarRoot = _scalarRoot;
initialAnchor = _initialAnchor;
lnFeeRateRoot = _lnFeeRateRoot;
expiry = IPPrincipalToken(_PT).expiry();
factory = msg.sender;
}
/**
* @notice PendleMarket allows users to provide in PT & SY in exchange for LPs, which
* will grant LP holders more exchange fee over time
* @dev will mint as much LP as possible such that the corresponding SY and PT used do
* not exceed `netSyDesired` and `netPtDesired`, respectively
* @dev PT and SY should be transferred to this contract prior to calling
* @dev will revert if PT is expired
*/
function mint(
address receiver,
uint256 netSyDesired,
uint256 netPtDesired
) external nonReentrant notExpired returns (uint256 netLpOut, uint256 netSyUsed, uint256 netPtUsed) {
MarketState memory market = readState(msg.sender);
PYIndex index = YT.newIndex();
uint256 lpToReserve;
(lpToReserve, netLpOut, netSyUsed, netPtUsed) = market.addLiquidity(
netSyDesired,
netPtDesired,
block.timestamp
);
// initializing the market
if (lpToReserve != 0) {
market.setInitialLnImpliedRate(index, initialAnchor, block.timestamp);
_mint(address(1), lpToReserve);
}
_mint(receiver, netLpOut);
_writeState(market);
if (_selfBalance(SY) < market.totalSy.Uint())
revert Errors.MarketInsufficientSyReceived(_selfBalance(SY), market.totalSy.Uint());
if (_selfBalance(PT) < market.totalPt.Uint())
revert Errors.MarketInsufficientPtReceived(_selfBalance(PT), market.totalPt.Uint());
emit Mint(receiver, netLpOut, netSyUsed, netPtUsed);
}
/**
* @notice LP Holders can burn their LP to receive back SY & PT proportionally
* to their share of the market
*/
function burn(
address receiverSy,
address receiverPt,
uint256 netLpToBurn
) external nonReentrant returns (uint256 netSyOut, uint256 netPtOut) {
MarketState memory market = readState(msg.sender);
_burn(address(this), netLpToBurn);
(netSyOut, netPtOut) = market.removeLiquidity(netLpToBurn);
if (receiverSy != address(this)) IERC20(SY).safeTransfer(receiverSy, netSyOut);
if (receiverPt != address(this)) IERC20(PT).safeTransfer(receiverPt, netPtOut);
_writeState(market);
emit Burn(receiverSy, receiverPt, netLpToBurn, netSyOut, netPtOut);
}
/**
* @notice Pendle Market allows swaps between PT & SY it is holding. This function
* aims to swap an exact amount of PT to SY.
* @dev steps working of this contract
- The outcome amount of SY will be precomputed by MarketMathLib
- Release the calculated amount of SY to receiver
- Callback to msg.sender if data.length > 0
- Ensure exactPtIn amount of PT has been transferred to this address
* @dev will revert if PT is expired
* @param data bytes data to be sent in the callback (if any)
*/
function swapExactPtForSy(
address receiver,
uint256 exactPtIn,
bytes calldata data
) external nonReentrant notExpired returns (uint256 netSyOut, uint256 netSyFee) {
MarketState memory market = readState(msg.sender);
uint256 netSyToReserve;
(netSyOut, netSyFee, netSyToReserve) = market.swapExactPtForSy(YT.newIndex(), exactPtIn, block.timestamp);
if (receiver != address(this)) IERC20(SY).safeTransfer(receiver, netSyOut);
IERC20(SY).safeTransfer(market.treasury, netSyToReserve);
_writeState(market);
if (data.length > 0) {
IPMarketSwapCallback(msg.sender).swapCallback(exactPtIn.neg(), netSyOut.Int(), data);
}
if (_selfBalance(PT) < market.totalPt.Uint())
revert Errors.MarketInsufficientPtReceived(_selfBalance(PT), market.totalPt.Uint());
emit Swap(msg.sender, receiver, exactPtIn.neg(), netSyOut.Int(), netSyFee, netSyToReserve);
}
/**
* @notice Pendle Market allows swaps between PT & SY it is holding. This function
* aims to swap SY for an exact amount of PT.
* @dev steps working of this function
- The exact outcome amount of PT will be transferred to receiver
- Callback to msg.sender if data.length > 0
- Ensure the calculated required amount of SY is transferred to this address
* @dev will revert if PT is expired
* @param data bytes data to be sent in the callback (if any)
*/
function swapSyForExactPt(
address receiver,
uint256 exactPtOut,
bytes calldata data
) external nonReentrant notExpired returns (uint256 netSyIn, uint256 netSyFee) {
MarketState memory market = readState(msg.sender);
uint256 netSyToReserve;
(netSyIn, netSyFee, netSyToReserve) = market.swapSyForExactPt(YT.newIndex(), exactPtOut, block.timestamp);
if (receiver != address(this)) IERC20(PT).safeTransfer(receiver, exactPtOut);
IERC20(SY).safeTransfer(market.treasury, netSyToReserve);
_writeState(market);
if (data.length > 0) {
IPMarketSwapCallback(msg.sender).swapCallback(exactPtOut.Int(), netSyIn.neg(), data);
}
// have received enough SY
if (_selfBalance(SY) < market.totalSy.Uint())
revert Errors.MarketInsufficientSyReceived(_selfBalance(SY), market.totalSy.Uint());
emit Swap(msg.sender, receiver, exactPtOut.Int(), netSyIn.neg(), netSyFee, netSyToReserve);
}
/// @notice forces balances to match reserves
function skim() external nonReentrant {
MarketState memory market = readState(msg.sender);
uint256 excessPt = _selfBalance(PT) - market.totalPt.Uint();
uint256 excessSy = _selfBalance(SY) - market.totalSy.Uint();
if (excessPt != 0) IERC20(PT).safeTransfer(market.treasury, excessPt);
if (excessSy != 0) IERC20(SY).safeTransfer(market.treasury, excessSy);
}
/**
* @notice redeems the user's reward
* @return amount of reward token redeemed, in the same order as `getRewardTokens()`
*/
function redeemRewards(address user) external nonReentrant returns (uint256[] memory) {
return _redeemRewards(user);
}
/// @notice returns the list of reward tokens
function getRewardTokens() external view returns (address[] memory) {
return _getRewardTokens();
}
/*///////////////////////////////////////////////////////////////
ORACLE
//////////////////////////////////////////////////////////////*/
function observe(uint32[] memory secondsAgos) external view returns (uint216[] memory lnImpliedRateCumulative) {
return
observations.observe(
uint32(block.timestamp),
secondsAgos,
_storage.lastLnImpliedRate,
_storage.observationIndex,
_storage.observationCardinality
);
}
function increaseObservationsCardinalityNext(uint16 cardinalityNext) external nonReentrant {
uint16 cardinalityNextOld = _storage.observationCardinalityNext;
uint16 cardinalityNextNew = observations.grow(cardinalityNextOld, cardinalityNext);
if (cardinalityNextOld != cardinalityNextNew) {
_storage.observationCardinalityNext = cardinalityNextNew;
emit IncreaseObservationCardinalityNext(cardinalityNextOld, cardinalityNextNew);
}
}
/*///////////////////////////////////////////////////////////////
READ/WRITE STATES
//////////////////////////////////////////////////////////////*/
/**
* @notice read the state of the market from storage into memory for gas-efficient manipulation
*/
function readState(address router) public view returns (MarketState memory market) {
market.totalPt = _storage.totalPt;
market.totalSy = _storage.totalSy;
market.totalLp = totalSupply().Int();
uint80 overriddenFee;
(market.treasury, overriddenFee, market.reserveFeePercent) = IPMarketFactoryV3(factory).getMarketConfig(
address(this),
router
);
market.lnFeeRateRoot = overriddenFee == 0 ? lnFeeRateRoot : overriddenFee;
market.scalarRoot = scalarRoot;
market.expiry = expiry;
market.lastLnImpliedRate = _storage.lastLnImpliedRate;
}
/// @notice write back the state of the market from memory to storage
function _writeState(MarketState memory market) internal {
uint96 lastLnImpliedRate96 = market.lastLnImpliedRate.Uint96();
int128 totalPt128 = market.totalPt.Int128();
int128 totalSy128 = market.totalSy.Int128();
(uint16 observationIndex, uint16 observationCardinality) = observations.write(
_storage.observationIndex,
uint32(block.timestamp),
_storage.lastLnImpliedRate,
_storage.observationCardinality,
_storage.observationCardinalityNext
);
_storage.totalPt = totalPt128;
_storage.totalSy = totalSy128;
_storage.lastLnImpliedRate = lastLnImpliedRate96;
_storage.observationIndex = observationIndex;
_storage.observationCardinality = observationCardinality;
emit UpdateImpliedRate(block.timestamp, market.lastLnImpliedRate);
}
function getNonOverrideLnFeeRateRoot() external view returns (uint80) {
return lnFeeRateRoot;
}
/*///////////////////////////////////////////////////////////////
TRIVIAL FUNCTIONS
//////////////////////////////////////////////////////////////*/
function readTokens() external view returns (IStandardizedYield _SY, IPPrincipalToken _PT, IPYieldToken _YT) {
_SY = SY;
_PT = PT;
_YT = YT;
}
function isExpired() public view returns (bool) {
return MiniHelpers.isCurrentlyExpired(expiry);
}
/*///////////////////////////////////////////////////////////////
PENDLE GAUGE - RELATED
//////////////////////////////////////////////////////////////*/
function _stakedBalance(address user) internal view override returns (uint256) {
return balanceOf(user);
}
function _totalStaked() internal view override returns (uint256) {
return totalSupply();
}
// solhint-disable-next-line ordering
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal override(PendleERC20, PendleGauge) {
PendleGauge._beforeTokenTransfer(from, to, amount);
}
// solhint-disable-next-line ordering
function _afterTokenTransfer(address from, address to, uint256 amount) internal override(PendleERC20, PendleGauge) {
PendleGauge._afterTokenTransfer(from, to, amount);
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
interface IPVeToken {
// ============= USER INFO =============
function balanceOf(address user) external view returns (uint128);
function positionData(address user) external view returns (uint128 amount, uint128 expiry);
// ============= META DATA =============
function totalSupplyStored() external view returns (uint128);
function totalSupplyCurrent() external returns (uint128);
function totalSupplyAndBalanceCurrent(address user) external returns (uint128, uint128);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "../../interfaces/IPYieldToken.sol";
import "../../interfaces/IPPrincipalToken.sol";
import "./SYUtils.sol";
import "../libraries/math/PMath.sol";
type PYIndex is uint256;
library PYIndexLib {
using PMath for uint256;
using PMath for int256;
function newIndex(IPYieldToken YT) internal returns (PYIndex) {
return PYIndex.wrap(YT.pyIndexCurrent());
}
function syToAsset(PYIndex index, uint256 syAmount) internal pure returns (uint256) {
return SYUtils.syToAsset(PYIndex.unwrap(index), syAmount);
}
function assetToSy(PYIndex index, uint256 assetAmount) internal pure returns (uint256) {
return SYUtils.assetToSy(PYIndex.unwrap(index), assetAmount);
}
function assetToSyUp(PYIndex index, uint256 assetAmount) internal pure returns (uint256) {
return SYUtils.assetToSyUp(PYIndex.unwrap(index), assetAmount);
}
function syToAssetUp(PYIndex index, uint256 syAmount) internal pure returns (uint256) {
uint256 _index = PYIndex.unwrap(index);
return SYUtils.syToAssetUp(_index, syAmount);
}
function syToAsset(PYIndex index, int256 syAmount) internal pure returns (int256) {
int256 sign = syAmount < 0 ? int256(-1) : int256(1);
return sign * (SYUtils.syToAsset(PYIndex.unwrap(index), syAmount.abs())).Int();
}
function assetToSy(PYIndex index, int256 assetAmount) internal pure returns (int256) {
int256 sign = assetAmount < 0 ? int256(-1) : int256(1);
return sign * (SYUtils.assetToSy(PYIndex.unwrap(index), assetAmount.abs())).Int();
}
function assetToSyUp(PYIndex index, int256 assetAmount) internal pure returns (int256) {
int256 sign = assetAmount < 0 ? int256(-1) : int256(1);
return sign * (SYUtils.assetToSyUp(PYIndex.unwrap(index), assetAmount.abs())).Int();
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @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 Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "./RewardManagerAbstract.sol";
/// NOTE: This RewardManager is used with SY & YTv2 & PendleMarket. For YTv1, it will use RewardManagerAbstract
/// NOTE: RewardManager must not have duplicated rewardTokens
abstract contract RewardManager is RewardManagerAbstract {
using PMath for uint256;
using ArrayLib for uint256[];
uint256 public lastRewardBlock;
mapping(address => RewardState) public rewardState;
function _updateRewardIndex()
internal
virtual
override
returns (address[] memory tokens, uint256[] memory indexes)
{
tokens = _getRewardTokens();
indexes = new uint256[](tokens.length);
if (tokens.length == 0) return (tokens, indexes);
if (lastRewardBlock != block.number) {
// if we have not yet update the index for this block
lastRewardBlock = block.number;
uint256 totalShares = _rewardSharesTotal();
_redeemExternalReward();
for (uint256 i = 0; i < tokens.length; ++i) {
address token = tokens[i];
// the entire token balance of the contract must be the rewards of the contract
RewardState memory _state = rewardState[token];
(uint256 lastBalance, uint256 index) = (_state.lastBalance, _state.index);
uint256 accrued = _selfBalance(tokens[i]) - lastBalance;
if (index == 0) index = INITIAL_REWARD_INDEX;
if (totalShares != 0) index += accrued.divDown(totalShares);
rewardState[token] = RewardState({
index: index.Uint128(),
lastBalance: (lastBalance + accrued).Uint128()
});
indexes[i] = index;
}
} else {
for (uint256 i = 0; i < tokens.length; i++) {
indexes[i] = rewardState[tokens[i]].index;
}
}
}
/// @dev this function doesn't need redeemExternal since redeemExternal is bundled in updateRewardIndex
/// @dev this function also has to update rewardState.lastBalance
function _doTransferOutRewards(
address user,
address receiver
) internal virtual override returns (uint256[] memory rewardAmounts) {
address[] memory tokens = _getRewardTokens();
rewardAmounts = new uint256[](tokens.length);
for (uint256 i = 0; i < tokens.length; i++) {
rewardAmounts[i] = userReward[tokens[i]][user].accrued;
if (rewardAmounts[i] != 0) {
userReward[tokens[i]][user].accrued = 0;
rewardState[tokens[i]].lastBalance -= rewardAmounts[i].Uint128();
_transferOut(tokens[i], receiver, rewardAmounts[i]);
}
}
}
function _getRewardTokens() internal view virtual returns (address[] memory);
function _rewardSharesTotal() internal view virtual returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "../../interfaces/IRewardManager.sol";
import "../libraries/ArrayLib.sol";
import "../libraries/TokenHelper.sol";
import "../libraries/math/PMath.sol";
import "./RewardManagerAbstract.sol";
/// NOTE: RewardManager must not have duplicated rewardTokens
abstract contract RewardManagerAbstract is IRewardManager, TokenHelper {
using PMath for uint256;
uint256 internal constant INITIAL_REWARD_INDEX = 1;
struct RewardState {
uint128 index;
uint128 lastBalance;
}
struct UserReward {
uint128 index;
uint128 accrued;
}
// [token] => [user] => (index,accrued)
mapping(address => mapping(address => UserReward)) public userReward;
function _updateAndDistributeRewards(address user) internal virtual {
_updateAndDistributeRewardsForTwo(user, address(0));
}
function _updateAndDistributeRewardsForTwo(address user1, address user2) internal virtual {
(address[] memory tokens, uint256[] memory indexes) = _updateRewardIndex();
if (tokens.length == 0) return;
if (user1 != address(0) && user1 != address(this)) _distributeRewardsPrivate(user1, tokens, indexes);
if (user2 != address(0) && user2 != address(this)) _distributeRewardsPrivate(user2, tokens, indexes);
}
// should only be callable from `_updateAndDistributeRewardsForTwo` to guarantee user != address(0) && user != address(this)
function _distributeRewardsPrivate(address user, address[] memory tokens, uint256[] memory indexes) private {
assert(user != address(0) && user != address(this));
uint256 userShares = _rewardSharesUser(user);
for (uint256 i = 0; i < tokens.length; ++i) {
address token = tokens[i];
uint256 index = indexes[i];
uint256 userIndex = userReward[token][user].index;
if (userIndex == 0) {
userIndex = INITIAL_REWARD_INDEX.Uint128();
}
if (userIndex == index) continue;
uint256 deltaIndex = index - userIndex;
uint256 rewardDelta = userShares.mulDown(deltaIndex);
uint256 rewardAccrued = userReward[token][user].accrued + rewardDelta;
userReward[token][user] = UserReward({index: index.Uint128(), accrued: rewardAccrued.Uint128()});
}
}
function _updateRewardIndex() internal virtual returns (address[] memory tokens, uint256[] memory indexes);
function _redeemExternalReward() internal virtual;
function _doTransferOutRewards(
address user,
address receiver
) internal virtual returns (uint256[] memory rewardAmounts);
function _rewardSharesUser(address user) internal view virtual returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
interface IPGaugeController {
event MarketClaimReward(address indexed market, uint256 amount);
event ReceiveVotingResults(uint128 indexed wTime, address[] markets, uint256[] pendleAmounts);
event UpdateMarketReward(address indexed market, uint256 pendlePerSec, uint256 incentiveEndsAt);
function fundPendle(uint256 amount) external;
function withdrawPendle(uint256 amount) external;
function pendle() external returns (address);
function redeemMarketReward() external;
function rewardData(address pool) external view returns (uint128 pendlePerSec, uint128, uint128, uint128);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "./IRewardManager.sol";
import "./IPInterestManagerYT.sol";
interface IPYieldToken is IERC20Metadata, IRewardManager, IPInterestManagerYT {
event NewInterestIndex(uint256 indexed newIndex);
event Mint(
address indexed caller,
address indexed receiverPT,
address indexed receiverYT,
uint256 amountSyToMint,
uint256 amountPYOut
);
event Burn(address indexed caller, address indexed receiver, uint256 amountPYToRedeem, uint256 amountSyOut);
event RedeemRewards(address indexed user, uint256[] amountRewardsOut);
event RedeemInterest(address indexed user, uint256 interestOut);
event CollectRewardFee(address indexed rewardToken, uint256 amountRewardFee);
function mintPY(address receiverPT, address receiverYT) external returns (uint256 amountPYOut);
function redeemPY(address receiver) external returns (uint256 amountSyOut);
function redeemPYMulti(
address[] calldata receivers,
uint256[] calldata amountPYToRedeems
) external returns (uint256[] memory amountSyOuts);
function redeemDueInterestAndRewards(
address user,
bool redeemInterest,
bool redeemRewards
) external returns (uint256 interestOut, uint256[] memory rewardsOut);
function rewardIndexesCurrent() external returns (uint256[] memory);
function pyIndexCurrent() external returns (uint256);
function pyIndexStored() external view returns (uint256);
function getRewardTokens() external view returns (address[] memory);
function SY() external view returns (address);
function PT() external view returns (address);
function factory() external view returns (address);
function expiry() external view returns (uint256);
function isExpired() external view returns (bool);
function doCacheIndexSameBlock() external view returns (bool);
function pyIndexLastUpdatedBlock() external view returns (uint128);
}// SPDX-License-Identifier: GPL-3.0-or-later
/*
* MIT License
* ===========
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
interface IWETH is IERC20 {
event Deposit(address indexed dst, uint256 wad);
event Withdrawal(address indexed src, uint256 wad);
function deposit() external payable;
function withdraw(uint256 wad) external;
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
library SYUtils {
uint256 internal constant ONE = 1e18;
function syToAsset(uint256 exchangeRate, uint256 syAmount) internal pure returns (uint256) {
return (syAmount * exchangeRate) / ONE;
}
function syToAssetUp(uint256 exchangeRate, uint256 syAmount) internal pure returns (uint256) {
return (syAmount * exchangeRate + ONE - 1) / ONE;
}
function assetToSy(uint256 exchangeRate, uint256 assetAmount) internal pure returns (uint256) {
return (assetAmount * ONE) / exchangeRate;
}
function assetToSyUp(uint256 exchangeRate, uint256 assetAmount) internal pure returns (uint256) {
return (assetAmount * ONE + exchangeRate - 1) / exchangeRate;
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
interface IPGauge {
function totalActiveSupply() external view returns (uint256);
function activeBalance(address user) external view returns (uint256);
// only available for newer factories. please check the verified contracts
event RedeemRewards(address indexed user, uint256[] rewardsOut);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
interface IRewardManager {
function userReward(address token, address user) external view returns (uint128 index, uint128 accrued);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "../../interfaces/IPGauge.sol";
import "../../interfaces/IPVeToken.sol";
import "../../interfaces/IPGaugeController.sol";
import "../../interfaces/IStandardizedYield.sol";
import "../RewardManager/RewardManager.sol";
/**
Invariants to maintain:
- before any changes to active balance, updateAndDistributeRewards() must be called
*/
abstract contract PendleGauge is RewardManager, IPGauge {
using PMath for uint256;
using SafeERC20 for IERC20;
using ArrayLib for address[];
address private immutable SY;
uint256 internal constant TOKENLESS_PRODUCTION = 40;
address internal immutable PENDLE;
IPVeToken internal immutable vePENDLE;
address internal immutable gaugeController;
uint256 public totalActiveSupply;
mapping(address => uint256) public activeBalance;
constructor(address _SY, address _vePendle, address _gaugeController) {
SY = _SY;
vePENDLE = IPVeToken(_vePendle);
gaugeController = _gaugeController;
PENDLE = IPGaugeController(gaugeController).pendle();
}
/**
* @dev Since rewardShares is based on activeBalance, user's activeBalance must be updated AFTER
rewards is updated
* @dev It's intended to have user's activeBalance updated when rewards is redeemed
*/
function _redeemRewards(address user) internal virtual returns (uint256[] memory rewardsOut) {
_updateAndDistributeRewards(user);
_updateUserActiveBalance(user);
rewardsOut = _doTransferOutRewards(user, user);
emit RedeemRewards(user, rewardsOut);
}
function _updateUserActiveBalance(address user) internal virtual {
_updateUserActiveBalanceForTwo(user, address(0));
}
function _updateUserActiveBalanceForTwo(address user1, address user2) internal virtual {
if (user1 != address(0) && user1 != address(this)) _updateUserActiveBalancePrivate(user1);
if (user2 != address(0) && user2 != address(this)) _updateUserActiveBalancePrivate(user2);
}
/**
* @dev should only be callable from `_updateUserActiveBalanceForTwo` to guarantee user != address(0) && user != address(this)
*/
function _updateUserActiveBalancePrivate(address user) private {
assert(user != address(0) && user != address(this));
uint256 lpBalance = _stakedBalance(user);
uint256 veBoostedLpBalance = _calcVeBoostedLpBalance(user, lpBalance);
uint256 newActiveBalance = PMath.min(veBoostedLpBalance, lpBalance);
totalActiveSupply = totalActiveSupply - activeBalance[user] + newActiveBalance;
activeBalance[user] = newActiveBalance;
}
function _calcVeBoostedLpBalance(address user, uint256 lpBalance) internal virtual returns (uint256) {
(uint256 vePendleSupply, uint256 vePendleBalance) = vePENDLE.totalSupplyAndBalanceCurrent(user);
// Inspired by Curve's Gauge
uint256 veBoostedLpBalance = (lpBalance * TOKENLESS_PRODUCTION) / 100;
if (vePendleSupply > 0) {
veBoostedLpBalance +=
(((_totalStaked() * vePendleBalance) / vePendleSupply) * (100 - TOKENLESS_PRODUCTION)) /
100;
}
return veBoostedLpBalance;
}
function _redeemExternalReward() internal virtual override {
IStandardizedYield(SY).claimRewards(address(this));
IPGaugeController(gaugeController).redeemMarketReward();
}
function _stakedBalance(address user) internal view virtual returns (uint256);
function _totalStaked() internal view virtual returns (uint256);
function _rewardSharesTotal() internal view virtual override returns (uint256) {
return totalActiveSupply;
}
function _rewardSharesUser(address user) internal view virtual override returns (uint256) {
return activeBalance[user];
}
function _getRewardTokens() internal view virtual override returns (address[] memory) {
address[] memory SYRewards = IStandardizedYield(SY).getRewardTokens();
if (SYRewards.contains(PENDLE)) return SYRewards;
return SYRewards.append(PENDLE);
}
function _beforeTokenTransfer(address from, address to, uint256) internal virtual {
_updateAndDistributeRewardsForTwo(from, to);
}
function _afterTokenTransfer(address from, address to, uint256) internal virtual {
_updateUserActiveBalanceForTwo(from, to);
}
}// SPDX-License-Identifier: GPL-3.0-or-later
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
// documentation files (the “Software”), to deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
// Software.
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
pragma solidity ^0.8.0;
/* solhint-disable */
/**
* @dev Exponentiation and logarithm functions for 18 decimal fixed point numbers (both base and exponent/argument).
*
* Exponentiation and logarithm with arbitrary bases (x^y and log_x(y)) are implemented by conversion to natural
* exponentiation and logarithm (where the base is Euler's number).
*
* @author Fernando Martinelli - @fernandomartinelli
* @author Sergio Yuhjtman - @sergioyuhjtman
* @author Daniel Fernandez - @dmf7z
*/
library LogExpMath {
// All fixed point multiplications and divisions are inlined. This means we need to divide by ONE when multiplying
// two numbers, and multiply by ONE when dividing them.
// All arguments and return values are 18 decimal fixed point numbers.
int256 constant ONE_18 = 1e18;
// Internally, intermediate values are computed with higher precision as 20 decimal fixed point numbers, and in the
// case of ln36, 36 decimals.
int256 constant ONE_20 = 1e20;
int256 constant ONE_36 = 1e36;
// The domain of natural exponentiation is bound by the word size and number of decimals used.
//
// Because internally the result will be stored using 20 decimals, the largest possible result is
// (2^255 - 1) / 10^20, which makes the largest exponent ln((2^255 - 1) / 10^20) = 130.700829182905140221.
// The smallest possible result is 10^(-18), which makes largest negative argument
// ln(10^(-18)) = -41.446531673892822312.
// We use 130.0 and -41.0 to have some safety margin.
int256 constant MAX_NATURAL_EXPONENT = 130e18;
int256 constant MIN_NATURAL_EXPONENT = -41e18;
// Bounds for ln_36's argument. Both ln(0.9) and ln(1.1) can be represented with 36 decimal places in a fixed point
// 256 bit integer.
int256 constant LN_36_LOWER_BOUND = ONE_18 - 1e17;
int256 constant LN_36_UPPER_BOUND = ONE_18 + 1e17;
uint256 constant MILD_EXPONENT_BOUND = 2 ** 254 / uint256(ONE_20);
// 18 decimal constants
int256 constant x0 = 128000000000000000000; // 2ˆ7
int256 constant a0 = 38877084059945950922200000000000000000000000000000000000; // eˆ(x0) (no decimals)
int256 constant x1 = 64000000000000000000; // 2ˆ6
int256 constant a1 = 6235149080811616882910000000; // eˆ(x1) (no decimals)
// 20 decimal constants
int256 constant x2 = 3200000000000000000000; // 2ˆ5
int256 constant a2 = 7896296018268069516100000000000000; // eˆ(x2)
int256 constant x3 = 1600000000000000000000; // 2ˆ4
int256 constant a3 = 888611052050787263676000000; // eˆ(x3)
int256 constant x4 = 800000000000000000000; // 2ˆ3
int256 constant a4 = 298095798704172827474000; // eˆ(x4)
int256 constant x5 = 400000000000000000000; // 2ˆ2
int256 constant a5 = 5459815003314423907810; // eˆ(x5)
int256 constant x6 = 200000000000000000000; // 2ˆ1
int256 constant a6 = 738905609893065022723; // eˆ(x6)
int256 constant x7 = 100000000000000000000; // 2ˆ0
int256 constant a7 = 271828182845904523536; // eˆ(x7)
int256 constant x8 = 50000000000000000000; // 2ˆ-1
int256 constant a8 = 164872127070012814685; // eˆ(x8)
int256 constant x9 = 25000000000000000000; // 2ˆ-2
int256 constant a9 = 128402541668774148407; // eˆ(x9)
int256 constant x10 = 12500000000000000000; // 2ˆ-3
int256 constant a10 = 113314845306682631683; // eˆ(x10)
int256 constant x11 = 6250000000000000000; // 2ˆ-4
int256 constant a11 = 106449445891785942956; // eˆ(x11)
/**
* @dev Natural exponentiation (e^x) with signed 18 decimal fixed point exponent.
*
* Reverts if `x` is smaller than MIN_NATURAL_EXPONENT, or larger than `MAX_NATURAL_EXPONENT`.
*/
function exp(int256 x) internal pure returns (int256) {
unchecked {
require(x >= MIN_NATURAL_EXPONENT && x <= MAX_NATURAL_EXPONENT, "Invalid exponent");
if (x < 0) {
// We only handle positive exponents: e^(-x) is computed as 1 / e^x. We can safely make x positive since it
// fits in the signed 256 bit range (as it is larger than MIN_NATURAL_EXPONENT).
// Fixed point division requires multiplying by ONE_18.
return ((ONE_18 * ONE_18) / exp(-x));
}
// First, we use the fact that e^(x+y) = e^x * e^y to decompose x into a sum of powers of two, which we call x_n,
// where x_n == 2^(7 - n), and e^x_n = a_n has been precomputed. We choose the first x_n, x0, to equal 2^7
// because all larger powers are larger than MAX_NATURAL_EXPONENT, and therefore not present in the
// decomposition.
// At the end of this process we will have the product of all e^x_n = a_n that apply, and the remainder of this
// decomposition, which will be lower than the smallest x_n.
// exp(x) = k_0 * a_0 * k_1 * a_1 * ... + k_n * a_n * exp(remainder), where each k_n equals either 0 or 1.
// We mutate x by subtracting x_n, making it the remainder of the decomposition.
// The first two a_n (e^(2^7) and e^(2^6)) are too large if stored as 18 decimal numbers, and could cause
// intermediate overflows. Instead we store them as plain integers, with 0 decimals.
// Additionally, x0 + x1 is larger than MAX_NATURAL_EXPONENT, which means they will not both be present in the
// decomposition.
// For each x_n, we test if that term is present in the decomposition (if x is larger than it), and if so deduct
// it and compute the accumulated product.
int256 firstAN;
if (x >= x0) {
x -= x0;
firstAN = a0;
} else if (x >= x1) {
x -= x1;
firstAN = a1;
} else {
firstAN = 1; // One with no decimal places
}
// We now transform x into a 20 decimal fixed point number, to have enhanced precision when computing the
// smaller terms.
x *= 100;
// `product` is the accumulated product of all a_n (except a0 and a1), which starts at 20 decimal fixed point
// one. Recall that fixed point multiplication requires dividing by ONE_20.
int256 product = ONE_20;
if (x >= x2) {
x -= x2;
product = (product * a2) / ONE_20;
}
if (x >= x3) {
x -= x3;
product = (product * a3) / ONE_20;
}
if (x >= x4) {
x -= x4;
product = (product * a4) / ONE_20;
}
if (x >= x5) {
x -= x5;
product = (product * a5) / ONE_20;
}
if (x >= x6) {
x -= x6;
product = (product * a6) / ONE_20;
}
if (x >= x7) {
x -= x7;
product = (product * a7) / ONE_20;
}
if (x >= x8) {
x -= x8;
product = (product * a8) / ONE_20;
}
if (x >= x9) {
x -= x9;
product = (product * a9) / ONE_20;
}
// x10 and x11 are unnecessary here since we have high enough precision already.
// Now we need to compute e^x, where x is small (in particular, it is smaller than x9). We use the Taylor series
// expansion for e^x: 1 + x + (x^2 / 2!) + (x^3 / 3!) + ... + (x^n / n!).
int256 seriesSum = ONE_20; // The initial one in the sum, with 20 decimal places.
int256 term; // Each term in the sum, where the nth term is (x^n / n!).
// The first term is simply x.
term = x;
seriesSum += term;
// Each term (x^n / n!) equals the previous one times x, divided by n. Since x is a fixed point number,
// multiplying by it requires dividing by ONE_20, but dividing by the non-fixed point n values does not.
term = ((term * x) / ONE_20) / 2;
seriesSum += term;
term = ((term * x) / ONE_20) / 3;
seriesSum += term;
term = ((term * x) / ONE_20) / 4;
seriesSum += term;
term = ((term * x) / ONE_20) / 5;
seriesSum += term;
term = ((term * x) / ONE_20) / 6;
seriesSum += term;
term = ((term * x) / ONE_20) / 7;
seriesSum += term;
term = ((term * x) / ONE_20) / 8;
seriesSum += term;
term = ((term * x) / ONE_20) / 9;
seriesSum += term;
term = ((term * x) / ONE_20) / 10;
seriesSum += term;
term = ((term * x) / ONE_20) / 11;
seriesSum += term;
term = ((term * x) / ONE_20) / 12;
seriesSum += term;
// 12 Taylor terms are sufficient for 18 decimal precision.
// We now have the first a_n (with no decimals), and the product of all other a_n present, and the Taylor
// approximation of the exponentiation of the remainder (both with 20 decimals). All that remains is to multiply
// all three (one 20 decimal fixed point multiplication, dividing by ONE_20, and one integer multiplication),
// and then drop two digits to return an 18 decimal value.
return (((product * seriesSum) / ONE_20) * firstAN) / 100;
}
}
/**
* @dev Natural logarithm (ln(a)) with signed 18 decimal fixed point argument.
*/
function ln(int256 a) internal pure returns (int256) {
unchecked {
// The real natural logarithm is not defined for negative numbers or zero.
require(a > 0, "out of bounds");
if (LN_36_LOWER_BOUND < a && a < LN_36_UPPER_BOUND) {
return _ln_36(a) / ONE_18;
} else {
return _ln(a);
}
}
}
/**
* @dev Exponentiation (x^y) with unsigned 18 decimal fixed point base and exponent.
*
* Reverts if ln(x) * y is smaller than `MIN_NATURAL_EXPONENT`, or larger than `MAX_NATURAL_EXPONENT`.
*/
function pow(uint256 x, uint256 y) internal pure returns (uint256) {
unchecked {
if (y == 0) {
// We solve the 0^0 indetermination by making it equal one.
return uint256(ONE_18);
}
if (x == 0) {
return 0;
}
// Instead of computing x^y directly, we instead rely on the properties of logarithms and exponentiation to
// arrive at that r`esult. In particular, exp(ln(x)) = x, and ln(x^y) = y * ln(x). This means
// x^y = exp(y * ln(x)).
// The ln function takes a signed value, so we need to make sure x fits in the signed 256 bit range.
require(x < 2 ** 255, "x out of bounds");
int256 x_int256 = int256(x);
// We will compute y * ln(x) in a single step. Depending on the value of x, we can either use ln or ln_36. In
// both cases, we leave the division by ONE_18 (due to fixed point multiplication) to the end.
// This prevents y * ln(x) from overflowing, and at the same time guarantees y fits in the signed 256 bit range.
require(y < MILD_EXPONENT_BOUND, "y out of bounds");
int256 y_int256 = int256(y);
int256 logx_times_y;
if (LN_36_LOWER_BOUND < x_int256 && x_int256 < LN_36_UPPER_BOUND) {
int256 ln_36_x = _ln_36(x_int256);
// ln_36_x has 36 decimal places, so multiplying by y_int256 isn't as straightforward, since we can't just
// bring y_int256 to 36 decimal places, as it might overflow. Instead, we perform two 18 decimal
// multiplications and add the results: one with the first 18 decimals of ln_36_x, and one with the
// (downscaled) last 18 decimals.
logx_times_y = ((ln_36_x / ONE_18) * y_int256 + ((ln_36_x % ONE_18) * y_int256) / ONE_18);
} else {
logx_times_y = _ln(x_int256) * y_int256;
}
logx_times_y /= ONE_18;
// Finally, we compute exp(y * ln(x)) to arrive at x^y
require(
MIN_NATURAL_EXPONENT <= logx_times_y && logx_times_y <= MAX_NATURAL_EXPONENT,
"product out of bounds"
);
return uint256(exp(logx_times_y));
}
}
/**
* @dev Internal natural logarithm (ln(a)) with signed 18 decimal fixed point argument.
*/
function _ln(int256 a) private pure returns (int256) {
unchecked {
if (a < ONE_18) {
// Since ln(a^k) = k * ln(a), we can compute ln(a) as ln(a) = ln((1/a)^(-1)) = - ln((1/a)). If a is less
// than one, 1/a will be greater than one, and this if statement will not be entered in the recursive call.
// Fixed point division requires multiplying by ONE_18.
return (-_ln((ONE_18 * ONE_18) / a));
}
// First, we use the fact that ln^(a * b) = ln(a) + ln(b) to decompose ln(a) into a sum of powers of two, which
// we call x_n, where x_n == 2^(7 - n), which are the natural logarithm of precomputed quantities a_n (that is,
// ln(a_n) = x_n). We choose the first x_n, x0, to equal 2^7 because the exponential of all larger powers cannot
// be represented as 18 fixed point decimal numbers in 256 bits, and are therefore larger than a.
// At the end of this process we will have the sum of all x_n = ln(a_n) that apply, and the remainder of this
// decomposition, which will be lower than the smallest a_n.
// ln(a) = k_0 * x_0 + k_1 * x_1 + ... + k_n * x_n + ln(remainder), where each k_n equals either 0 or 1.
// We mutate a by subtracting a_n, making it the remainder of the decomposition.
// For reasons related to how `exp` works, the first two a_n (e^(2^7) and e^(2^6)) are not stored as fixed point
// numbers with 18 decimals, but instead as plain integers with 0 decimals, so we need to multiply them by
// ONE_18 to convert them to fixed point.
// For each a_n, we test if that term is present in the decomposition (if a is larger than it), and if so divide
// by it and compute the accumulated sum.
int256 sum = 0;
if (a >= a0 * ONE_18) {
a /= a0; // Integer, not fixed point division
sum += x0;
}
if (a >= a1 * ONE_18) {
a /= a1; // Integer, not fixed point division
sum += x1;
}
// All other a_n and x_n are stored as 20 digit fixed point numbers, so we convert the sum and a to this format.
sum *= 100;
a *= 100;
// Because further a_n are 20 digit fixed point numbers, we multiply by ONE_20 when dividing by them.
if (a >= a2) {
a = (a * ONE_20) / a2;
sum += x2;
}
if (a >= a3) {
a = (a * ONE_20) / a3;
sum += x3;
}
if (a >= a4) {
a = (a * ONE_20) / a4;
sum += x4;
}
if (a >= a5) {
a = (a * ONE_20) / a5;
sum += x5;
}
if (a >= a6) {
a = (a * ONE_20) / a6;
sum += x6;
}
if (a >= a7) {
a = (a * ONE_20) / a7;
sum += x7;
}
if (a >= a8) {
a = (a * ONE_20) / a8;
sum += x8;
}
if (a >= a9) {
a = (a * ONE_20) / a9;
sum += x9;
}
if (a >= a10) {
a = (a * ONE_20) / a10;
sum += x10;
}
if (a >= a11) {
a = (a * ONE_20) / a11;
sum += x11;
}
// a is now a small number (smaller than a_11, which roughly equals 1.06). This means we can use a Taylor series
// that converges rapidly for values of `a` close to one - the same one used in ln_36.
// Let z = (a - 1) / (a + 1).
// ln(a) = 2 * (z + z^3 / 3 + z^5 / 5 + z^7 / 7 + ... + z^(2 * n + 1) / (2 * n + 1))
// Recall that 20 digit fixed point division requires multiplying by ONE_20, and multiplication requires
// division by ONE_20.
int256 z = ((a - ONE_20) * ONE_20) / (a + ONE_20);
int256 z_squared = (z * z) / ONE_20;
// num is the numerator of the series: the z^(2 * n + 1) term
int256 num = z;
// seriesSum holds the accumulated sum of each term in the series, starting with the initial z
int256 seriesSum = num;
// In each step, the numerator is multiplied by z^2
num = (num * z_squared) / ONE_20;
seriesSum += num / 3;
num = (num * z_squared) / ONE_20;
seriesSum += num / 5;
num = (num * z_squared) / ONE_20;
seriesSum += num / 7;
num = (num * z_squared) / ONE_20;
seriesSum += num / 9;
num = (num * z_squared) / ONE_20;
seriesSum += num / 11;
// 6 Taylor terms are sufficient for 36 decimal precision.
// Finally, we multiply by 2 (non fixed point) to compute ln(remainder)
seriesSum *= 2;
// We now have the sum of all x_n present, and the Taylor approximation of the logarithm of the remainder (both
// with 20 decimals). All that remains is to sum these two, and then drop two digits to return a 18 decimal
// value.
return (sum + seriesSum) / 100;
}
}
/**
* @dev Intrnal high precision (36 decimal places) natural logarithm (ln(x)) with signed 18 decimal fixed point argument,
* for x close to one.
*
* Should only be used if x is between LN_36_LOWER_BOUND and LN_36_UPPER_BOUND.
*/
function _ln_36(int256 x) private pure returns (int256) {
unchecked {
// Since ln(1) = 0, a value of x close to one will yield a very small result, which makes using 36 digits
// worthwhile.
// First, we transform x to a 36 digit fixed point value.
x *= ONE_18;
// We will use the following Taylor expansion, which converges very rapidly. Let z = (x - 1) / (x + 1).
// ln(x) = 2 * (z + z^3 / 3 + z^5 / 5 + z^7 / 7 + ... + z^(2 * n + 1) / (2 * n + 1))
// Recall that 36 digit fixed point division requires multiplying by ONE_36, and multiplication requires
// division by ONE_36.
int256 z = ((x - ONE_36) * ONE_36) / (x + ONE_36);
int256 z_squared = (z * z) / ONE_36;
// num is the numerator of the series: the z^(2 * n + 1) term
int256 num = z;
// seriesSum holds the accumulated sum of each term in the series, starting with the initial z
int256 seriesSum = num;
// In each step, the numerator is multiplied by z^2
num = (num * z_squared) / ONE_36;
seriesSum += num / 3;
num = (num * z_squared) / ONE_36;
seriesSum += num / 5;
num = (num * z_squared) / ONE_36;
seriesSum += num / 7;
num = (num * z_squared) / ONE_36;
seriesSum += num / 9;
num = (num * z_squared) / ONE_36;
seriesSum += num / 11;
num = (num * z_squared) / ONE_36;
seriesSum += num / 13;
num = (num * z_squared) / ONE_36;
seriesSum += num / 15;
// 8 Taylor terms are sufficient for 36 decimal precision.
// All that remains is multiplying by 2 (non fixed point).
return seriesSum * 2;
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}// SPDX-License-Identifier: GPL-3.0-or-later
/*
* MIT License
* ===========
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
interface IStandardizedYield is IERC20Metadata {
/// @dev Emitted when any base tokens is deposited to mint shares
event Deposit(
address indexed caller,
address indexed receiver,
address indexed tokenIn,
uint256 amountDeposited,
uint256 amountSyOut
);
/// @dev Emitted when any shares are redeemed for base tokens
event Redeem(
address indexed caller,
address indexed receiver,
address indexed tokenOut,
uint256 amountSyToRedeem,
uint256 amountTokenOut
);
/// @dev check `assetInfo()` for more information
enum AssetType {
TOKEN,
LIQUIDITY
}
/// @dev Emitted when (`user`) claims their rewards
event ClaimRewards(address indexed user, address[] rewardTokens, uint256[] rewardAmounts);
/**
* @notice mints an amount of shares by depositing a base token.
* @param receiver shares recipient address
* @param tokenIn address of the base tokens to mint shares
* @param amountTokenToDeposit amount of base tokens to be transferred from (`msg.sender`)
* @param minSharesOut reverts if amount of shares minted is lower than this
* @return amountSharesOut amount of shares minted
* @dev Emits a {Deposit} event
*
* Requirements:
* - (`tokenIn`) must be a valid base token.
*/
function deposit(
address receiver,
address tokenIn,
uint256 amountTokenToDeposit,
uint256 minSharesOut
) external payable returns (uint256 amountSharesOut);
/**
* @notice redeems an amount of base tokens by burning some shares
* @param receiver recipient address
* @param amountSharesToRedeem amount of shares to be burned
* @param tokenOut address of the base token to be redeemed
* @param minTokenOut reverts if amount of base token redeemed is lower than this
* @param burnFromInternalBalance if true, burns from balance of `address(this)`, otherwise burns from `msg.sender`
* @return amountTokenOut amount of base tokens redeemed
* @dev Emits a {Redeem} event
*
* Requirements:
* - (`tokenOut`) must be a valid base token.
*/
function redeem(
address receiver,
uint256 amountSharesToRedeem,
address tokenOut,
uint256 minTokenOut,
bool burnFromInternalBalance
) external returns (uint256 amountTokenOut);
/**
* @notice exchangeRate * syBalance / 1e18 must return the asset balance of the account
* @notice vice-versa, if a user uses some amount of tokens equivalent to X asset, the amount of sy
he can mint must be X * exchangeRate / 1e18
* @dev SYUtils's assetToSy & syToAsset should be used instead of raw multiplication
& division
*/
function exchangeRate() external view returns (uint256 res);
/**
* @notice claims reward for (`user`)
* @param user the user receiving their rewards
* @return rewardAmounts an array of reward amounts in the same order as `getRewardTokens`
* @dev
* Emits a `ClaimRewards` event
* See {getRewardTokens} for list of reward tokens
*/
function claimRewards(address user) external returns (uint256[] memory rewardAmounts);
/**
* @notice get the amount of unclaimed rewards for (`user`)
* @param user the user to check for
* @return rewardAmounts an array of reward amounts in the same order as `getRewardTokens`
*/
function accruedRewards(address user) external view returns (uint256[] memory rewardAmounts);
function rewardIndexesCurrent() external returns (uint256[] memory indexes);
function rewardIndexesStored() external view returns (uint256[] memory indexes);
/**
* @notice returns the list of reward token addresses
*/
function getRewardTokens() external view returns (address[] memory);
/**
* @notice returns the address of the underlying yield token
*/
function yieldToken() external view returns (address);
/**
* @notice returns all tokens that can mint this SY
*/
function getTokensIn() external view returns (address[] memory res);
/**
* @notice returns all tokens that can be redeemed by this SY
*/
function getTokensOut() external view returns (address[] memory res);
function isValidTokenIn(address token) external view returns (bool);
function isValidTokenOut(address token) external view returns (bool);
function previewDeposit(
address tokenIn,
uint256 amountTokenToDeposit
) external view returns (uint256 amountSharesOut);
function previewRedeem(
address tokenOut,
uint256 amountSharesToRedeem
) external view returns (uint256 amountTokenOut);
/**
* @notice This function contains information to interpret what the asset is
* @return assetType the type of the asset (0 for ERC20 tokens, 1 for AMM liquidity tokens,
2 for bridged yield bearing tokens like wstETH, rETH on Arbi whose the underlying asset doesn't exist on the chain)
* @return assetAddress the address of the asset
* @return assetDecimals the decimals of the asset
*/
function assetInfo() external view returns (AssetType assetType, address assetAddress, uint8 assetDecimals);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
* to be set to zero before setting it to a non-zero value, such as USDT.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}// SPDX-License-Identifier: GPL-3.0-or-later
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/utils/Context.sol";
/**
* @dev Pendle's ERC20 implementation, modified from @openzeppelin implementation
* Changes are:
* - comes with built-in reentrancy protection, storage-packed with totalSupply variable
* - delete increaseAllowance / decreaseAllowance
* - add nonReentrancy protection to transfer / transferFrom functions
* - allow decimals to be passed in
* - block self-transfer by default
*/
// solhint-disable
contract PendleERC20 is Context, IERC20, IERC20Metadata {
uint8 private constant _NOT_ENTERED = 1;
uint8 private constant _ENTERED = 2;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint248 private _totalSupply;
uint8 private _status;
string private _name;
string private _symbol;
uint8 public immutable decimals;
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Sets the values for {name}, {symbol} and {decimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_, uint8 decimals_) {
_name = name_;
_symbol = symbol_;
decimals = decimals_;
_status = _NOT_ENTERED;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) external virtual override nonReentrant returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) external virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external virtual override nonReentrant returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
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");
require(from != to, "ERC20: transfer to self");
_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);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += toUint248(amount);
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
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 -= toUint248(amount);
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
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);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
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);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
function toUint248(uint256 x) internal virtual returns (uint248) {
require(x <= type(uint248).max); // signed, lim = bit-1
return uint248(x);
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "./IPMarket.sol";
interface IPMarketV3 is IPMarket {
function getNonOverrideLnFeeRateRoot() external view returns (uint80);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
interface IPMarketFactoryV3 {
event SetOverriddenFee(address indexed router, address indexed market, uint80 lnFeeRateRoot);
event CreateNewMarket(
address indexed market,
address indexed PT,
int256 scalarRoot,
int256 initialAnchor,
uint256 lnFeeRateRoot
);
event NewTreasuryAndFeeReserve(address indexed treasury, uint8 reserveFeePercent);
function isValidMarket(address market) external view returns (bool);
// If this is changed, change the readState function in market as well
function getMarketConfig(
address market,
address router
) external view returns (address treasury, uint80 overriddenFee, uint8 reserveFeePercent);
function createNewMarket(
address PT,
int256 scalarRoot,
int256 initialAnchor,
uint80 lnFeeRateRoot
) external returns (address market);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "./IPPrincipalToken.sol";
import "./IPYieldToken.sol";
import "./IStandardizedYield.sol";
import "./IPGauge.sol";
import "../core/Market/MarketMathCore.sol";
interface IPMarket is IERC20Metadata, IPGauge {
event Mint(address indexed receiver, uint256 netLpMinted, uint256 netSyUsed, uint256 netPtUsed);
event Burn(
address indexed receiverSy,
address indexed receiverPt,
uint256 netLpBurned,
uint256 netSyOut,
uint256 netPtOut
);
event Swap(
address indexed caller,
address indexed receiver,
int256 netPtOut,
int256 netSyOut,
uint256 netSyFee,
uint256 netSyToReserve
);
event UpdateImpliedRate(uint256 indexed timestamp, uint256 lnLastImpliedRate);
event IncreaseObservationCardinalityNext(
uint16 observationCardinalityNextOld,
uint16 observationCardinalityNextNew
);
function mint(
address receiver,
uint256 netSyDesired,
uint256 netPtDesired
) external returns (uint256 netLpOut, uint256 netSyUsed, uint256 netPtUsed);
function burn(
address receiverSy,
address receiverPt,
uint256 netLpToBurn
) external returns (uint256 netSyOut, uint256 netPtOut);
function swapExactPtForSy(
address receiver,
uint256 exactPtIn,
bytes calldata data
) external returns (uint256 netSyOut, uint256 netSyFee);
function swapSyForExactPt(
address receiver,
uint256 exactPtOut,
bytes calldata data
) external returns (uint256 netSyIn, uint256 netSyFee);
function redeemRewards(address user) external returns (uint256[] memory);
function readState(address router) external view returns (MarketState memory market);
function observe(uint32[] memory secondsAgos) external view returns (uint216[] memory lnImpliedRateCumulative);
function increaseObservationsCardinalityNext(uint16 cardinalityNext) external;
function readTokens() external view returns (IStandardizedYield _SY, IPPrincipalToken _PT, IPYieldToken _YT);
function getRewardTokens() external view returns (address[] memory);
function isExpired() external view returns (bool);
function expiry() external view returns (uint256);
function observations(
uint256 index
) external view returns (uint32 blockTimestamp, uint216 lnImpliedRateCumulative, bool initialized);
function _storage()
external
view
returns (
int128 totalPt,
int128 totalSy,
uint96 lastLnImpliedRate,
uint16 observationIndex,
uint16 observationCardinality,
uint16 observationCardinalityNext
);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "../libraries/math/PMath.sol";
import "../libraries/math/LogExpMath.sol";
import "../StandardizedYield/PYIndex.sol";
import "../libraries/MiniHelpers.sol";
import "../libraries/Errors.sol";
struct MarketState {
int256 totalPt;
int256 totalSy;
int256 totalLp;
address treasury;
/// immutable variables ///
int256 scalarRoot;
uint256 expiry;
/// fee data ///
uint256 lnFeeRateRoot;
uint256 reserveFeePercent; // base 100
/// last trade data ///
uint256 lastLnImpliedRate;
}
// params that are expensive to compute, therefore we pre-compute them
struct MarketPreCompute {
int256 rateScalar;
int256 totalAsset;
int256 rateAnchor;
int256 feeRate;
}
// solhint-disable ordering
library MarketMathCore {
using PMath for uint256;
using PMath for int256;
using LogExpMath for int256;
using PYIndexLib for PYIndex;
int256 internal constant MINIMUM_LIQUIDITY = 10 ** 3;
int256 internal constant PERCENTAGE_DECIMALS = 100;
uint256 internal constant DAY = 86400;
uint256 internal constant IMPLIED_RATE_TIME = 365 * DAY;
int256 internal constant MAX_MARKET_PROPORTION = (1e18 * 96) / 100;
using PMath for uint256;
using PMath for int256;
/*///////////////////////////////////////////////////////////////
UINT FUNCTIONS TO PROXY TO CORE FUNCTIONS
//////////////////////////////////////////////////////////////*/
function addLiquidity(
MarketState memory market,
uint256 syDesired,
uint256 ptDesired,
uint256 blockTime
) internal pure returns (uint256 lpToReserve, uint256 lpToAccount, uint256 syUsed, uint256 ptUsed) {
(int256 _lpToReserve, int256 _lpToAccount, int256 _syUsed, int256 _ptUsed) = addLiquidityCore(
market,
syDesired.Int(),
ptDesired.Int(),
blockTime
);
lpToReserve = _lpToReserve.Uint();
lpToAccount = _lpToAccount.Uint();
syUsed = _syUsed.Uint();
ptUsed = _ptUsed.Uint();
}
function removeLiquidity(
MarketState memory market,
uint256 lpToRemove
) internal pure returns (uint256 netSyToAccount, uint256 netPtToAccount) {
(int256 _syToAccount, int256 _ptToAccount) = removeLiquidityCore(market, lpToRemove.Int());
netSyToAccount = _syToAccount.Uint();
netPtToAccount = _ptToAccount.Uint();
}
function swapExactPtForSy(
MarketState memory market,
PYIndex index,
uint256 exactPtToMarket,
uint256 blockTime
) internal pure returns (uint256 netSyToAccount, uint256 netSyFee, uint256 netSyToReserve) {
(int256 _netSyToAccount, int256 _netSyFee, int256 _netSyToReserve) = executeTradeCore(
market,
index,
exactPtToMarket.neg(),
blockTime
);
netSyToAccount = _netSyToAccount.Uint();
netSyFee = _netSyFee.Uint();
netSyToReserve = _netSyToReserve.Uint();
}
function swapSyForExactPt(
MarketState memory market,
PYIndex index,
uint256 exactPtToAccount,
uint256 blockTime
) internal pure returns (uint256 netSyToMarket, uint256 netSyFee, uint256 netSyToReserve) {
(int256 _netSyToAccount, int256 _netSyFee, int256 _netSyToReserve) = executeTradeCore(
market,
index,
exactPtToAccount.Int(),
blockTime
);
netSyToMarket = _netSyToAccount.neg().Uint();
netSyFee = _netSyFee.Uint();
netSyToReserve = _netSyToReserve.Uint();
}
/*///////////////////////////////////////////////////////////////
CORE FUNCTIONS
//////////////////////////////////////////////////////////////*/
function addLiquidityCore(
MarketState memory market,
int256 syDesired,
int256 ptDesired,
uint256 blockTime
) internal pure returns (int256 lpToReserve, int256 lpToAccount, int256 syUsed, int256 ptUsed) {
/// ------------------------------------------------------------
/// CHECKS
/// ------------------------------------------------------------
if (syDesired == 0 || ptDesired == 0) revert Errors.MarketZeroAmountsInput();
if (MiniHelpers.isExpired(market.expiry, blockTime)) revert Errors.MarketExpired();
/// ------------------------------------------------------------
/// MATH
/// ------------------------------------------------------------
if (market.totalLp == 0) {
lpToAccount = PMath.sqrt((syDesired * ptDesired).Uint()).Int() - MINIMUM_LIQUIDITY;
lpToReserve = MINIMUM_LIQUIDITY;
syUsed = syDesired;
ptUsed = ptDesired;
} else {
int256 netLpByPt = (ptDesired * market.totalLp) / market.totalPt;
int256 netLpBySy = (syDesired * market.totalLp) / market.totalSy;
if (netLpByPt < netLpBySy) {
lpToAccount = netLpByPt;
ptUsed = ptDesired;
syUsed = (market.totalSy * lpToAccount) / market.totalLp;
} else {
lpToAccount = netLpBySy;
syUsed = syDesired;
ptUsed = (market.totalPt * lpToAccount) / market.totalLp;
}
}
if (lpToAccount <= 0) revert Errors.MarketZeroAmountsOutput();
/// ------------------------------------------------------------
/// WRITE
/// ------------------------------------------------------------
market.totalSy += syUsed;
market.totalPt += ptUsed;
market.totalLp += lpToAccount + lpToReserve;
}
function removeLiquidityCore(
MarketState memory market,
int256 lpToRemove
) internal pure returns (int256 netSyToAccount, int256 netPtToAccount) {
/// ------------------------------------------------------------
/// CHECKS
/// ------------------------------------------------------------
if (lpToRemove == 0) revert Errors.MarketZeroAmountsInput();
/// ------------------------------------------------------------
/// MATH
/// ------------------------------------------------------------
netSyToAccount = (lpToRemove * market.totalSy) / market.totalLp;
netPtToAccount = (lpToRemove * market.totalPt) / market.totalLp;
if (netSyToAccount == 0 && netPtToAccount == 0) revert Errors.MarketZeroAmountsOutput();
/// ------------------------------------------------------------
/// WRITE
/// ------------------------------------------------------------
market.totalLp = market.totalLp.subNoNeg(lpToRemove);
market.totalPt = market.totalPt.subNoNeg(netPtToAccount);
market.totalSy = market.totalSy.subNoNeg(netSyToAccount);
}
function executeTradeCore(
MarketState memory market,
PYIndex index,
int256 netPtToAccount,
uint256 blockTime
) internal pure returns (int256 netSyToAccount, int256 netSyFee, int256 netSyToReserve) {
/// ------------------------------------------------------------
/// CHECKS
/// ------------------------------------------------------------
if (MiniHelpers.isExpired(market.expiry, blockTime)) revert Errors.MarketExpired();
if (market.totalPt <= netPtToAccount)
revert Errors.MarketInsufficientPtForTrade(market.totalPt, netPtToAccount);
/// ------------------------------------------------------------
/// MATH
/// ------------------------------------------------------------
MarketPreCompute memory comp = getMarketPreCompute(market, index, blockTime);
(netSyToAccount, netSyFee, netSyToReserve) = calcTrade(market, comp, index, netPtToAccount);
/// ------------------------------------------------------------
/// WRITE
/// ------------------------------------------------------------
_setNewMarketStateTrade(market, comp, index, netPtToAccount, netSyToAccount, netSyToReserve, blockTime);
}
function getMarketPreCompute(
MarketState memory market,
PYIndex index,
uint256 blockTime
) internal pure returns (MarketPreCompute memory res) {
if (MiniHelpers.isExpired(market.expiry, blockTime)) revert Errors.MarketExpired();
uint256 timeToExpiry = market.expiry - blockTime;
res.rateScalar = _getRateScalar(market, timeToExpiry);
res.totalAsset = index.syToAsset(market.totalSy);
if (market.totalPt == 0 || res.totalAsset == 0)
revert Errors.MarketZeroTotalPtOrTotalAsset(market.totalPt, res.totalAsset);
res.rateAnchor = _getRateAnchor(
market.totalPt,
market.lastLnImpliedRate,
res.totalAsset,
res.rateScalar,
timeToExpiry
);
res.feeRate = _getExchangeRateFromImpliedRate(market.lnFeeRateRoot, timeToExpiry);
}
function calcTrade(
MarketState memory market,
MarketPreCompute memory comp,
PYIndex index,
int256 netPtToAccount
) internal pure returns (int256 netSyToAccount, int256 netSyFee, int256 netSyToReserve) {
int256 preFeeExchangeRate = _getExchangeRate(
market.totalPt,
comp.totalAsset,
comp.rateScalar,
comp.rateAnchor,
netPtToAccount
);
int256 preFeeAssetToAccount = netPtToAccount.divDown(preFeeExchangeRate).neg();
int256 fee = comp.feeRate;
if (netPtToAccount > 0) {
int256 postFeeExchangeRate = preFeeExchangeRate.divDown(fee);
if (postFeeExchangeRate < PMath.IONE) revert Errors.MarketExchangeRateBelowOne(postFeeExchangeRate);
fee = preFeeAssetToAccount.mulDown(PMath.IONE - fee);
} else {
fee = ((preFeeAssetToAccount * (PMath.IONE - fee)) / fee).neg();
}
int256 netAssetToReserve = (fee * market.reserveFeePercent.Int()) / PERCENTAGE_DECIMALS;
int256 netAssetToAccount = preFeeAssetToAccount - fee;
netSyToAccount = netAssetToAccount < 0
? index.assetToSyUp(netAssetToAccount)
: index.assetToSy(netAssetToAccount);
netSyFee = index.assetToSy(fee);
netSyToReserve = index.assetToSy(netAssetToReserve);
}
function _setNewMarketStateTrade(
MarketState memory market,
MarketPreCompute memory comp,
PYIndex index,
int256 netPtToAccount,
int256 netSyToAccount,
int256 netSyToReserve,
uint256 blockTime
) internal pure {
uint256 timeToExpiry = market.expiry - blockTime;
market.totalPt = market.totalPt.subNoNeg(netPtToAccount);
market.totalSy = market.totalSy.subNoNeg(netSyToAccount + netSyToReserve);
market.lastLnImpliedRate = _getLnImpliedRate(
market.totalPt,
index.syToAsset(market.totalSy),
comp.rateScalar,
comp.rateAnchor,
timeToExpiry
);
if (market.lastLnImpliedRate == 0) revert Errors.MarketZeroLnImpliedRate();
}
function _getRateAnchor(
int256 totalPt,
uint256 lastLnImpliedRate,
int256 totalAsset,
int256 rateScalar,
uint256 timeToExpiry
) internal pure returns (int256 rateAnchor) {
int256 newExchangeRate = _getExchangeRateFromImpliedRate(lastLnImpliedRate, timeToExpiry);
if (newExchangeRate < PMath.IONE) revert Errors.MarketExchangeRateBelowOne(newExchangeRate);
{
int256 proportion = totalPt.divDown(totalPt + totalAsset);
int256 lnProportion = _logProportion(proportion);
rateAnchor = newExchangeRate - lnProportion.divDown(rateScalar);
}
}
/// @notice Calculates the current market implied rate.
/// @return lnImpliedRate the implied rate
function _getLnImpliedRate(
int256 totalPt,
int256 totalAsset,
int256 rateScalar,
int256 rateAnchor,
uint256 timeToExpiry
) internal pure returns (uint256 lnImpliedRate) {
// This will check for exchange rates < PMath.IONE
int256 exchangeRate = _getExchangeRate(totalPt, totalAsset, rateScalar, rateAnchor, 0);
// exchangeRate >= 1 so its ln >= 0
uint256 lnRate = exchangeRate.ln().Uint();
lnImpliedRate = (lnRate * IMPLIED_RATE_TIME) / timeToExpiry;
}
/// @notice Converts an implied rate to an exchange rate given a time to expiry. The
/// formula is E = e^rt
function _getExchangeRateFromImpliedRate(
uint256 lnImpliedRate,
uint256 timeToExpiry
) internal pure returns (int256 exchangeRate) {
uint256 rt = (lnImpliedRate * timeToExpiry) / IMPLIED_RATE_TIME;
exchangeRate = LogExpMath.exp(rt.Int());
}
function _getExchangeRate(
int256 totalPt,
int256 totalAsset,
int256 rateScalar,
int256 rateAnchor,
int256 netPtToAccount
) internal pure returns (int256 exchangeRate) {
int256 numerator = totalPt.subNoNeg(netPtToAccount);
int256 proportion = (numerator.divDown(totalPt + totalAsset));
if (proportion > MAX_MARKET_PROPORTION)
revert Errors.MarketProportionTooHigh(proportion, MAX_MARKET_PROPORTION);
int256 lnProportion = _logProportion(proportion);
exchangeRate = lnProportion.divDown(rateScalar) + rateAnchor;
if (exchangeRate < PMath.IONE) revert Errors.MarketExchangeRateBelowOne(exchangeRate);
}
function _logProportion(int256 proportion) internal pure returns (int256 res) {
if (proportion == PMath.IONE) revert Errors.MarketProportionMustNotEqualOne();
int256 logitP = proportion.divDown(PMath.IONE - proportion);
res = logitP.ln();
}
function _getRateScalar(MarketState memory market, uint256 timeToExpiry) internal pure returns (int256 rateScalar) {
rateScalar = (market.scalarRoot * IMPLIED_RATE_TIME.Int()) / timeToExpiry.Int();
if (rateScalar <= 0) revert Errors.MarketRateScalarBelowZero(rateScalar);
}
function setInitialLnImpliedRate(
MarketState memory market,
PYIndex index,
int256 initialAnchor,
uint256 blockTime
) internal pure {
/// ------------------------------------------------------------
/// CHECKS
/// ------------------------------------------------------------
if (MiniHelpers.isExpired(market.expiry, blockTime)) revert Errors.MarketExpired();
/// ------------------------------------------------------------
/// MATH
/// ------------------------------------------------------------
int256 totalAsset = index.syToAsset(market.totalSy);
uint256 timeToExpiry = market.expiry - blockTime;
int256 rateScalar = _getRateScalar(market, timeToExpiry);
/// ------------------------------------------------------------
/// WRITE
/// ------------------------------------------------------------
market.lastLnImpliedRate = _getLnImpliedRate(
market.totalPt,
totalAsset,
rateScalar,
initialAnchor,
timeToExpiry
);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @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
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [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/v0.8.0/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);
}
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "../../interfaces/IWETH.sol";
abstract contract TokenHelper {
using SafeERC20 for IERC20;
address internal constant NATIVE = address(0);
uint256 internal constant LOWER_BOUND_APPROVAL = type(uint96).max / 2; // some tokens use 96 bits for approval
function _transferIn(address token, address from, uint256 amount) internal {
if (token == NATIVE) require(msg.value == amount, "eth mismatch");
else if (amount != 0) IERC20(token).safeTransferFrom(from, address(this), amount);
}
function _transferFrom(IERC20 token, address from, address to, uint256 amount) internal {
if (amount != 0) token.safeTransferFrom(from, to, amount);
}
function _transferOut(address token, address to, uint256 amount) internal {
if (amount == 0) return;
if (token == NATIVE) {
(bool success, ) = to.call{value: amount}("");
require(success, "eth send failed");
} else {
IERC20(token).safeTransfer(to, amount);
}
}
function _transferOut(address[] memory tokens, address to, uint256[] memory amounts) internal {
uint256 numTokens = tokens.length;
require(numTokens == amounts.length, "length mismatch");
for (uint256 i = 0; i < numTokens; ) {
_transferOut(tokens[i], to, amounts[i]);
unchecked {
i++;
}
}
}
function _selfBalance(address token) internal view returns (uint256) {
return (token == NATIVE) ? address(this).balance : IERC20(token).balanceOf(address(this));
}
function _selfBalance(IERC20 token) internal view returns (uint256) {
return token.balanceOf(address(this));
}
/// @notice Approves the stipulated contract to spend the given allowance in the given token
/// @dev PLS PAY ATTENTION to tokens that requires the approval to be set to 0 before changing it
function _safeApprove(address token, address to, uint256 value) internal {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(IERC20.approve.selector, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), "Safe Approve");
}
function _safeApproveInf(address token, address to) internal {
if (token == NATIVE) return;
if (IERC20(token).allowance(address(this), to) < LOWER_BOUND_APPROVAL) {
_safeApprove(token, to, 0);
_safeApprove(token, to, type(uint256).max);
}
}
function _wrap_unwrap_ETH(address tokenIn, address tokenOut, uint256 netTokenIn) internal {
if (tokenIn == NATIVE) IWETH(tokenOut).deposit{value: netTokenIn}();
else IWETH(tokenIn).withdraw(netTokenIn);
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
library MiniHelpers {
function isCurrentlyExpired(uint256 expiry) internal view returns (bool) {
return (expiry <= block.timestamp);
}
function isExpired(uint256 expiry, uint256 blockTime) internal pure returns (bool) {
return (expiry <= blockTime);
}
function isTimeInThePast(uint256 timestamp) internal view returns (bool) {
return (timestamp <= block.timestamp); // same definition as isCurrentlyExpired
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
interface IPInterestManagerYT {
event CollectInterestFee(uint256 amountInterestFee);
function userInterest(address user) external view returns (uint128 lastPYIndex, uint128 accruedInterest);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "../libraries/Errors.sol";
/// Adapted from UniswapV3's Oracle
library OracleLib {
struct Observation {
uint32 blockTimestamp;
uint216 lnImpliedRateCumulative;
bool initialized;
// 1 SLOT = 256 bits
}
function transform(
Observation memory last,
uint32 blockTimestamp,
uint96 lnImpliedRate
) public pure returns (Observation memory) {
return
Observation({
blockTimestamp: blockTimestamp,
lnImpliedRateCumulative: last.lnImpliedRateCumulative +
uint216(lnImpliedRate) *
(blockTimestamp - last.blockTimestamp),
initialized: true
});
}
function initialize(
Observation[65535] storage self,
uint32 time
) public returns (uint16 cardinality, uint16 cardinalityNext) {
self[0] = Observation({blockTimestamp: time, lnImpliedRateCumulative: 0, initialized: true});
return (1, 1);
}
function write(
Observation[65535] storage self,
uint16 index,
uint32 blockTimestamp,
uint96 lnImpliedRate,
uint16 cardinality,
uint16 cardinalityNext
) public returns (uint16 indexUpdated, uint16 cardinalityUpdated) {
Observation memory last = self[index];
// early return if we've already written an observation this block
if (last.blockTimestamp == blockTimestamp) return (index, cardinality);
// if the conditions are right, we can bump the cardinality
if (cardinalityNext > cardinality && index == (cardinality - 1)) {
cardinalityUpdated = cardinalityNext;
} else {
cardinalityUpdated = cardinality;
}
indexUpdated = (index + 1) % cardinalityUpdated;
self[indexUpdated] = transform(last, blockTimestamp, lnImpliedRate);
}
function grow(Observation[65535] storage self, uint16 current, uint16 next) public returns (uint16) {
if (current == 0) revert Errors.OracleUninitialized();
// no-op if the passed next value isn't greater than the current next value
if (next <= current) return current;
// store in each slot to prevent fresh SSTOREs in swaps
// this data will not be used because the initialized boolean is still false
for (uint16 i = current; i != next; ) {
self[i].blockTimestamp = 1;
unchecked {
++i;
}
}
return next;
}
function binarySearch(
Observation[65535] storage self,
uint32 target,
uint16 index,
uint16 cardinality
) public view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {
uint256 l = (index + 1) % cardinality; // oldest observation
uint256 r = l + cardinality - 1; // newest observation
uint256 i;
while (true) {
i = (l + r) / 2;
beforeOrAt = self[i % cardinality];
// we've landed on an uninitialized observation, keep searching higher (more recently)
if (!beforeOrAt.initialized) {
l = i + 1;
continue;
}
atOrAfter = self[(i + 1) % cardinality];
bool targetAtOrAfter = beforeOrAt.blockTimestamp <= target;
// check if we've found the answer!
if (targetAtOrAfter && target <= atOrAfter.blockTimestamp) break;
if (!targetAtOrAfter) r = i - 1;
else l = i + 1;
}
}
function getSurroundingObservations(
Observation[65535] storage self,
uint32 target,
uint96 lnImpliedRate,
uint16 index,
uint16 cardinality
) public view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {
// optimistically set before to the newest observation
beforeOrAt = self[index];
// if the target is chronologically at or after the newest observation, we can early return
if (beforeOrAt.blockTimestamp <= target) {
if (beforeOrAt.blockTimestamp == target) {
// if newest observation equals target, we're in the same block, so we can ignore atOrAfter
return (beforeOrAt, atOrAfter);
} else {
// otherwise, we need to transform
return (beforeOrAt, transform(beforeOrAt, target, lnImpliedRate));
}
}
// now, set beforeOrAt to the oldest observation
beforeOrAt = self[(index + 1) % cardinality];
if (!beforeOrAt.initialized) beforeOrAt = self[0];
// ensure that the target is chronologically at or after the oldest observation
if (target < beforeOrAt.blockTimestamp) revert Errors.OracleTargetTooOld(target, beforeOrAt.blockTimestamp);
// if we've reached this point, we have to binary search
return binarySearch(self, target, index, cardinality);
}
function observeSingle(
Observation[65535] storage self,
uint32 time,
uint32 secondsAgo,
uint96 lnImpliedRate,
uint16 index,
uint16 cardinality
) public view returns (uint216 lnImpliedRateCumulative) {
if (secondsAgo == 0) {
Observation memory last = self[index];
if (last.blockTimestamp != time) {
return transform(last, time, lnImpliedRate).lnImpliedRateCumulative;
}
return last.lnImpliedRateCumulative;
}
uint32 target = time - secondsAgo;
(Observation memory beforeOrAt, Observation memory atOrAfter) = getSurroundingObservations(
self,
target,
lnImpliedRate,
index,
cardinality
);
if (target == beforeOrAt.blockTimestamp) {
// we're at the left boundary
return beforeOrAt.lnImpliedRateCumulative;
} else if (target == atOrAfter.blockTimestamp) {
// we're at the right boundary
return atOrAfter.lnImpliedRateCumulative;
} else {
// we're in the middle
return (beforeOrAt.lnImpliedRateCumulative +
uint216(
(uint256(atOrAfter.lnImpliedRateCumulative - beforeOrAt.lnImpliedRateCumulative) *
(target - beforeOrAt.blockTimestamp)) / (atOrAfter.blockTimestamp - beforeOrAt.blockTimestamp)
));
}
}
function observe(
Observation[65535] storage self,
uint32 time,
uint32[] memory secondsAgos,
uint96 lnImpliedRate,
uint16 index,
uint16 cardinality
) public view returns (uint216[] memory lnImpliedRateCumulative) {
if (cardinality == 0) revert Errors.OracleZeroCardinality();
lnImpliedRateCumulative = new uint216[](secondsAgos.length);
for (uint256 i = 0; i < lnImpliedRateCumulative.length; ++i) {
lnImpliedRateCumulative[i] = observeSingle(self, time, secondsAgos[i], lnImpliedRate, index, cardinality);
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
interface IPMarketSwapCallback {
function swapCallback(int256 ptToAccount, int256 syToAccount, bytes calldata data) external;
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
library ArrayLib {
function sum(uint256[] memory input) internal pure returns (uint256) {
uint256 value = 0;
for (uint256 i = 0; i < input.length; ) {
value += input[i];
unchecked {
i++;
}
}
return value;
}
/// @notice return index of the element if found, else return uint256.max
function find(address[] memory array, address element) internal pure returns (uint256 index) {
uint256 length = array.length;
for (uint256 i = 0; i < length; ) {
if (array[i] == element) return i;
unchecked {
i++;
}
}
return type(uint256).max;
}
function append(address[] memory inp, address element) internal pure returns (address[] memory out) {
uint256 length = inp.length;
out = new address[](length + 1);
for (uint256 i = 0; i < length; ) {
out[i] = inp[i];
unchecked {
i++;
}
}
out[length] = element;
}
function appendHead(address[] memory inp, address element) internal pure returns (address[] memory out) {
uint256 length = inp.length;
out = new address[](length + 1);
out[0] = element;
for (uint256 i = 1; i <= length; ) {
out[i] = inp[i - 1];
unchecked {
i++;
}
}
}
/**
* @dev This function assumes a and b each contains unidentical elements
* @param a array of addresses a
* @param b array of addresses b
* @return out Concatenation of a and b containing unidentical elements
*/
function merge(address[] memory a, address[] memory b) internal pure returns (address[] memory out) {
unchecked {
uint256 countUnidenticalB = 0;
bool[] memory isUnidentical = new bool[](b.length);
for (uint256 i = 0; i < b.length; ++i) {
if (!contains(a, b[i])) {
countUnidenticalB++;
isUnidentical[i] = true;
}
}
out = new address[](a.length + countUnidenticalB);
for (uint256 i = 0; i < a.length; ++i) {
out[i] = a[i];
}
uint256 id = a.length;
for (uint256 i = 0; i < b.length; ++i) {
if (isUnidentical[i]) {
out[id++] = b[i];
}
}
}
}
// various version of contains
function contains(address[] memory array, address element) internal pure returns (bool) {
uint256 length = array.length;
for (uint256 i = 0; i < length; ) {
if (array[i] == element) return true;
unchecked {
i++;
}
}
return false;
}
function contains(bytes4[] memory array, bytes4 element) internal pure returns (bool) {
uint256 length = array.length;
for (uint256 i = 0; i < length; ) {
if (array[i] == element) return true;
unchecked {
i++;
}
}
return false;
}
function create(address a) internal pure returns (address[] memory res) {
res = new address[](1);
res[0] = a;
}
function create(address a, address b) internal pure returns (address[] memory res) {
res = new address[](2);
res[0] = a;
res[1] = b;
}
function create(address a, address b, address c) internal pure returns (address[] memory res) {
res = new address[](3);
res[0] = a;
res[1] = b;
res[2] = c;
}
function create(uint256 a) internal pure returns (uint256[] memory res) {
res = new uint256[](1);
res[0] = a;
}
}// SPDX-License-Identifier: GPL-3.0-or-later
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
pragma solidity ^0.8.0;
/* solhint-disable private-vars-leading-underscore, reason-string */
library PMath {
uint256 internal constant ONE = 1e18; // 18 decimal places
int256 internal constant IONE = 1e18; // 18 decimal places
function subMax0(uint256 a, uint256 b) internal pure returns (uint256) {
unchecked {
return (a >= b ? a - b : 0);
}
}
function subNoNeg(int256 a, int256 b) internal pure returns (int256) {
require(a >= b, "negative");
return a - b; // no unchecked since if b is very negative, a - b might overflow
}
function mulDown(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 product = a * b;
unchecked {
return product / ONE;
}
}
function mulDown(int256 a, int256 b) internal pure returns (int256) {
int256 product = a * b;
unchecked {
return product / IONE;
}
}
function divDown(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 aInflated = a * ONE;
unchecked {
return aInflated / b;
}
}
function divDown(int256 a, int256 b) internal pure returns (int256) {
int256 aInflated = a * IONE;
unchecked {
return aInflated / b;
}
}
function rawDivUp(uint256 a, uint256 b) internal pure returns (uint256) {
return (a + b - 1) / b;
}
// @author Uniswap
function sqrt(uint256 y) internal pure returns (uint256 z) {
if (y > 3) {
z = y;
uint256 x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
function square(uint256 x) internal pure returns (uint256) {
return x * x;
}
function squareDown(uint256 x) internal pure returns (uint256) {
return mulDown(x, x);
}
function abs(int256 x) internal pure returns (uint256) {
return uint256(x > 0 ? x : -x);
}
function neg(int256 x) internal pure returns (int256) {
return x * (-1);
}
function neg(uint256 x) internal pure returns (int256) {
return Int(x) * (-1);
}
function max(uint256 x, uint256 y) internal pure returns (uint256) {
return (x > y ? x : y);
}
function max(int256 x, int256 y) internal pure returns (int256) {
return (x > y ? x : y);
}
function min(uint256 x, uint256 y) internal pure returns (uint256) {
return (x < y ? x : y);
}
function min(int256 x, int256 y) internal pure returns (int256) {
return (x < y ? x : y);
}
/*///////////////////////////////////////////////////////////////
SIGNED CASTS
//////////////////////////////////////////////////////////////*/
function Int(uint256 x) internal pure returns (int256) {
require(x <= uint256(type(int256).max));
return int256(x);
}
function Int128(int256 x) internal pure returns (int128) {
require(type(int128).min <= x && x <= type(int128).max);
return int128(x);
}
function Int128(uint256 x) internal pure returns (int128) {
return Int128(Int(x));
}
/*///////////////////////////////////////////////////////////////
UNSIGNED CASTS
//////////////////////////////////////////////////////////////*/
function Uint(int256 x) internal pure returns (uint256) {
require(x >= 0);
return uint256(x);
}
function Uint32(uint256 x) internal pure returns (uint32) {
require(x <= type(uint32).max);
return uint32(x);
}
function Uint64(uint256 x) internal pure returns (uint64) {
require(x <= type(uint64).max);
return uint64(x);
}
function Uint112(uint256 x) internal pure returns (uint112) {
require(x <= type(uint112).max);
return uint112(x);
}
function Uint96(uint256 x) internal pure returns (uint96) {
require(x <= type(uint96).max);
return uint96(x);
}
function Uint128(uint256 x) internal pure returns (uint128) {
require(x <= type(uint128).max);
return uint128(x);
}
function Uint192(uint256 x) internal pure returns (uint192) {
require(x <= type(uint192).max);
return uint192(x);
}
function isAApproxB(uint256 a, uint256 b, uint256 eps) internal pure returns (bool) {
return mulDown(b, ONE - eps) <= a && a <= mulDown(b, ONE + eps);
}
function isAGreaterApproxB(uint256 a, uint256 b, uint256 eps) internal pure returns (bool) {
return a >= b && a <= mulDown(b, ONE + eps);
}
function isASmallerApproxB(uint256 a, uint256 b, uint256 eps) internal pure returns (bool) {
return a <= b && a >= mulDown(b, ONE - eps);
}
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
library Errors {
// BulkSeller
error BulkInsufficientSyForTrade(uint256 currentAmount, uint256 requiredAmount);
error BulkInsufficientTokenForTrade(uint256 currentAmount, uint256 requiredAmount);
error BulkInSufficientSyOut(uint256 actualSyOut, uint256 requiredSyOut);
error BulkInSufficientTokenOut(uint256 actualTokenOut, uint256 requiredTokenOut);
error BulkInsufficientSyReceived(uint256 actualBalance, uint256 requiredBalance);
error BulkNotMaintainer();
error BulkNotAdmin();
error BulkSellerAlreadyExisted(address token, address SY, address bulk);
error BulkSellerInvalidToken(address token, address SY);
error BulkBadRateTokenToSy(uint256 actualRate, uint256 currentRate, uint256 eps);
error BulkBadRateSyToToken(uint256 actualRate, uint256 currentRate, uint256 eps);
// APPROX
error ApproxFail();
error ApproxParamsInvalid(uint256 guessMin, uint256 guessMax, uint256 eps);
error ApproxBinarySearchInputInvalid(
uint256 approxGuessMin,
uint256 approxGuessMax,
uint256 minGuessMin,
uint256 maxGuessMax
);
// MARKET + MARKET MATH CORE
error MarketExpired();
error MarketZeroAmountsInput();
error MarketZeroAmountsOutput();
error MarketZeroLnImpliedRate();
error MarketInsufficientPtForTrade(int256 currentAmount, int256 requiredAmount);
error MarketInsufficientPtReceived(uint256 actualBalance, uint256 requiredBalance);
error MarketInsufficientSyReceived(uint256 actualBalance, uint256 requiredBalance);
error MarketZeroTotalPtOrTotalAsset(int256 totalPt, int256 totalAsset);
error MarketExchangeRateBelowOne(int256 exchangeRate);
error MarketProportionMustNotEqualOne();
error MarketRateScalarBelowZero(int256 rateScalar);
error MarketScalarRootBelowZero(int256 scalarRoot);
error MarketProportionTooHigh(int256 proportion, int256 maxProportion);
error OracleUninitialized();
error OracleTargetTooOld(uint32 target, uint32 oldest);
error OracleZeroCardinality();
error MarketFactoryExpiredPt();
error MarketFactoryInvalidPt();
error MarketFactoryMarketExists();
error MarketFactoryLnFeeRateRootTooHigh(uint80 lnFeeRateRoot, uint256 maxLnFeeRateRoot);
error MarketFactoryOverriddenFeeTooHigh(uint80 overriddenFee, uint256 marketLnFeeRateRoot);
error MarketFactoryReserveFeePercentTooHigh(uint8 reserveFeePercent, uint8 maxReserveFeePercent);
error MarketFactoryZeroTreasury();
error MarketFactoryInitialAnchorTooLow(int256 initialAnchor, int256 minInitialAnchor);
error MFNotPendleMarket(address addr);
// ROUTER
error RouterInsufficientLpOut(uint256 actualLpOut, uint256 requiredLpOut);
error RouterInsufficientSyOut(uint256 actualSyOut, uint256 requiredSyOut);
error RouterInsufficientPtOut(uint256 actualPtOut, uint256 requiredPtOut);
error RouterInsufficientYtOut(uint256 actualYtOut, uint256 requiredYtOut);
error RouterInsufficientPYOut(uint256 actualPYOut, uint256 requiredPYOut);
error RouterInsufficientTokenOut(uint256 actualTokenOut, uint256 requiredTokenOut);
error RouterInsufficientSyRepay(uint256 actualSyRepay, uint256 requiredSyRepay);
error RouterInsufficientPtRepay(uint256 actualPtRepay, uint256 requiredPtRepay);
error RouterNotAllSyUsed(uint256 netSyDesired, uint256 netSyUsed);
error RouterTimeRangeZero();
error RouterCallbackNotPendleMarket(address caller);
error RouterInvalidAction(bytes4 selector);
error RouterInvalidFacet(address facet);
error RouterKyberSwapDataZero();
error SimulationResults(bool success, bytes res);
// YIELD CONTRACT
error YCExpired();
error YCNotExpired();
error YieldContractInsufficientSy(uint256 actualSy, uint256 requiredSy);
error YCNothingToRedeem();
error YCPostExpiryDataNotSet();
error YCNoFloatingSy();
// YieldFactory
error YCFactoryInvalidExpiry();
error YCFactoryYieldContractExisted();
error YCFactoryZeroExpiryDivisor();
error YCFactoryZeroTreasury();
error YCFactoryInterestFeeRateTooHigh(uint256 interestFeeRate, uint256 maxInterestFeeRate);
error YCFactoryRewardFeeRateTooHigh(uint256 newRewardFeeRate, uint256 maxRewardFeeRate);
// SY
error SYInvalidTokenIn(address token);
error SYInvalidTokenOut(address token);
error SYZeroDeposit();
error SYZeroRedeem();
error SYInsufficientSharesOut(uint256 actualSharesOut, uint256 requiredSharesOut);
error SYInsufficientTokenOut(uint256 actualTokenOut, uint256 requiredTokenOut);
// SY-specific
error SYQiTokenMintFailed(uint256 errCode);
error SYQiTokenRedeemFailed(uint256 errCode);
error SYQiTokenRedeemRewardsFailed(uint256 rewardAccruedType0, uint256 rewardAccruedType1);
error SYQiTokenBorrowRateTooHigh(uint256 borrowRate, uint256 borrowRateMax);
error SYCurveInvalidPid();
error SYCurve3crvPoolNotFound();
error SYApeDepositAmountTooSmall(uint256 amountDeposited);
error SYBalancerInvalidPid();
error SYInvalidRewardToken(address token);
error SYStargateRedeemCapExceeded(uint256 amountLpDesired, uint256 amountLpRedeemable);
error SYBalancerReentrancy();
error NotFromTrustedRemote(uint16 srcChainId, bytes path);
error ApxETHNotEnoughBuffer();
// Liquidity Mining
error VCInactivePool(address pool);
error VCPoolAlreadyActive(address pool);
error VCZeroVePendle(address user);
error VCExceededMaxWeight(uint256 totalWeight, uint256 maxWeight);
error VCEpochNotFinalized(uint256 wTime);
error VCPoolAlreadyAddAndRemoved(address pool);
error VEInvalidNewExpiry(uint256 newExpiry);
error VEExceededMaxLockTime();
error VEInsufficientLockTime();
error VENotAllowedReduceExpiry();
error VEZeroAmountLocked();
error VEPositionNotExpired();
error VEZeroPosition();
error VEZeroSlope(uint128 bias, uint128 slope);
error VEReceiveOldSupply(uint256 msgTime);
error GCNotPendleMarket(address caller);
error GCNotVotingController(address caller);
error InvalidWTime(uint256 wTime);
error ExpiryInThePast(uint256 expiry);
error ChainNotSupported(uint256 chainId);
error FDTotalAmountFundedNotMatch(uint256 actualTotalAmount, uint256 expectedTotalAmount);
error FDEpochLengthMismatch();
error FDInvalidPool(address pool);
error FDPoolAlreadyExists(address pool);
error FDInvalidNewFinishedEpoch(uint256 oldFinishedEpoch, uint256 newFinishedEpoch);
error FDInvalidStartEpoch(uint256 startEpoch);
error FDInvalidWTimeFund(uint256 lastFunded, uint256 wTime);
error FDFutureFunding(uint256 lastFunded, uint256 currentWTime);
error BDInvalidEpoch(uint256 epoch, uint256 startTime);
// Cross-Chain
error MsgNotFromSendEndpoint(uint16 srcChainId, bytes path);
error MsgNotFromReceiveEndpoint(address sender);
error InsufficientFeeToSendMsg(uint256 currentFee, uint256 requiredFee);
error ApproxDstExecutionGasNotSet();
error InvalidRetryData();
// GENERIC MSG
error ArrayLengthMismatch();
error ArrayEmpty();
error ArrayOutOfBounds();
error ZeroAddress();
error FailedToSendEther();
error InvalidMerkleProof();
error OnlyLayerZeroEndpoint();
error OnlyYT();
error OnlyYCFactory();
error OnlyWhitelisted();
// Swap Aggregator
error SAInsufficientTokenIn(address tokenIn, uint256 amountExpected, uint256 amountActual);
error UnsupportedSelector(uint256 aggregatorType, bytes4 selector);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
interface IPPrincipalToken is IERC20Metadata {
function burnByYT(address user, uint256 amount) external;
function mintByYT(address user, uint256 amount) external;
function initialize(address _YT) external;
function SY() external view returns (address);
function YT() external view returns (address);
function factory() external view returns (address);
function expiry() external view returns (uint256);
function isExpired() external view returns (bool);
}{
"evmVersion": "paris",
"libraries": {
"contracts/pendle/contracts/core/Market/OracleLib.sol": {
"OracleLib": "0x588af5f096c03c69ef5ad96b8677be4b3515a3cc"
}
},
"optimizer": {
"enabled": true,
"runs": 11000
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"viaIR": true
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"_PT","type":"address"},{"internalType":"int256","name":"_scalarRoot","type":"int256"},{"internalType":"int256","name":"_initialAnchor","type":"int256"},{"internalType":"uint80","name":"_lnFeeRateRoot","type":"uint80"},{"internalType":"address","name":"_vePendle","type":"address"},{"internalType":"address","name":"_gaugeController","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"int256","name":"exchangeRate","type":"int256"}],"name":"MarketExchangeRateBelowOne","type":"error"},{"inputs":[],"name":"MarketExpired","type":"error"},{"inputs":[{"internalType":"int256","name":"currentAmount","type":"int256"},{"internalType":"int256","name":"requiredAmount","type":"int256"}],"name":"MarketInsufficientPtForTrade","type":"error"},{"inputs":[{"internalType":"uint256","name":"actualBalance","type":"uint256"},{"internalType":"uint256","name":"requiredBalance","type":"uint256"}],"name":"MarketInsufficientPtReceived","type":"error"},{"inputs":[{"internalType":"uint256","name":"actualBalance","type":"uint256"},{"internalType":"uint256","name":"requiredBalance","type":"uint256"}],"name":"MarketInsufficientSyReceived","type":"error"},{"inputs":[],"name":"MarketProportionMustNotEqualOne","type":"error"},{"inputs":[{"internalType":"int256","name":"proportion","type":"int256"},{"internalType":"int256","name":"maxProportion","type":"int256"}],"name":"MarketProportionTooHigh","type":"error"},{"inputs":[{"internalType":"int256","name":"rateScalar","type":"int256"}],"name":"MarketRateScalarBelowZero","type":"error"},{"inputs":[{"internalType":"int256","name":"scalarRoot","type":"int256"}],"name":"MarketScalarRootBelowZero","type":"error"},{"inputs":[],"name":"MarketZeroAmountsInput","type":"error"},{"inputs":[],"name":"MarketZeroAmountsOutput","type":"error"},{"inputs":[],"name":"MarketZeroLnImpliedRate","type":"error"},{"inputs":[{"internalType":"int256","name":"totalPt","type":"int256"},{"internalType":"int256","name":"totalAsset","type":"int256"}],"name":"MarketZeroTotalPtOrTotalAsset","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"receiverSy","type":"address"},{"indexed":true,"internalType":"address","name":"receiverPt","type":"address"},{"indexed":false,"internalType":"uint256","name":"netLpBurned","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"netSyOut","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"netPtOut","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"observationCardinalityNextOld","type":"uint16"},{"indexed":false,"internalType":"uint16","name":"observationCardinalityNextNew","type":"uint16"}],"name":"IncreaseObservationCardinalityNext","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"netLpMinted","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"netSyUsed","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"netPtUsed","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"rewardsOut","type":"uint256[]"}],"name":"RedeemRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"caller","type":"address"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"int256","name":"netPtOut","type":"int256"},{"indexed":false,"internalType":"int256","name":"netSyOut","type":"int256"},{"indexed":false,"internalType":"uint256","name":"netSyFee","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"netSyToReserve","type":"uint256"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"timestamp","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lnLastImpliedRate","type":"uint256"}],"name":"UpdateImpliedRate","type":"event"},{"inputs":[],"name":"_storage","outputs":[{"internalType":"int128","name":"totalPt","type":"int128"},{"internalType":"int128","name":"totalSy","type":"int128"},{"internalType":"uint96","name":"lastLnImpliedRate","type":"uint96"},{"internalType":"uint16","name":"observationIndex","type":"uint16"},{"internalType":"uint16","name":"observationCardinality","type":"uint16"},{"internalType":"uint16","name":"observationCardinalityNext","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"activeBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"receiverSy","type":"address"},{"internalType":"address","name":"receiverPt","type":"address"},{"internalType":"uint256","name":"netLpToBurn","type":"uint256"}],"name":"burn","outputs":[{"internalType":"uint256","name":"netSyOut","type":"uint256"},{"internalType":"uint256","name":"netPtOut","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"expiry","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNonOverrideLnFeeRateRoot","outputs":[{"internalType":"uint80","name":"","type":"uint80"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getRewardTokens","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"cardinalityNext","type":"uint16"}],"name":"increaseObservationsCardinalityNext","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isExpired","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastRewardBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"netSyDesired","type":"uint256"},{"internalType":"uint256","name":"netPtDesired","type":"uint256"}],"name":"mint","outputs":[{"internalType":"uint256","name":"netLpOut","type":"uint256"},{"internalType":"uint256","name":"netSyUsed","type":"uint256"},{"internalType":"uint256","name":"netPtUsed","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"observations","outputs":[{"internalType":"uint32","name":"blockTimestamp","type":"uint32"},{"internalType":"uint216","name":"lnImpliedRateCumulative","type":"uint216"},{"internalType":"bool","name":"initialized","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint32[]","name":"secondsAgos","type":"uint32[]"}],"name":"observe","outputs":[{"internalType":"uint216[]","name":"lnImpliedRateCumulative","type":"uint216[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"router","type":"address"}],"name":"readState","outputs":[{"components":[{"internalType":"int256","name":"totalPt","type":"int256"},{"internalType":"int256","name":"totalSy","type":"int256"},{"internalType":"int256","name":"totalLp","type":"int256"},{"internalType":"address","name":"treasury","type":"address"},{"internalType":"int256","name":"scalarRoot","type":"int256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint256","name":"lnFeeRateRoot","type":"uint256"},{"internalType":"uint256","name":"reserveFeePercent","type":"uint256"},{"internalType":"uint256","name":"lastLnImpliedRate","type":"uint256"}],"internalType":"struct MarketState","name":"market","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"readTokens","outputs":[{"internalType":"contract IStandardizedYield","name":"_SY","type":"address"},{"internalType":"contract IPPrincipalToken","name":"_PT","type":"address"},{"internalType":"contract IPYieldToken","name":"_YT","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"redeemRewards","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"rewardState","outputs":[{"internalType":"uint128","name":"index","type":"uint128"},{"internalType":"uint128","name":"lastBalance","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"skim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"exactPtIn","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swapExactPtForSy","outputs":[{"internalType":"uint256","name":"netSyOut","type":"uint256"},{"internalType":"uint256","name":"netSyFee","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"exactPtOut","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swapSyForExactPt","outputs":[{"internalType":"uint256","name":"netSyIn","type":"uint256"},{"internalType":"uint256","name":"netSyFee","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalActiveSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"userReward","outputs":[{"internalType":"uint128","name":"index","type":"uint128"},{"internalType":"uint128","name":"accrued","type":"uint128"}],"stateMutability":"view","type":"function"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000ba567cf0d8230c0ad8d8bfc50e587e06d6f118e90000000000000000000000000000000000000000000000000c2bda6c80727000000000000000000000000000000000000000000000000000193f8f79da76c000000000000000000000000000000000000000000000000000002359c5efe4034000000000000000000000000030c6d4e892871220b5ab66c10db577da96fb974b000000000000000000000000428f2f93afac3f96b0de59854038c585e06165c8
-----Decoded View---------------
Arg [0] : _PT (address): 0xba567Cf0d8230c0AD8D8bFc50E587E06d6F118E9
Arg [1] : _scalarRoot (int256): 877034712000000000
Arg [2] : _initialAnchor (int256): 1819330528000000000
Arg [3] : _lnFeeRateRoot (uint80): 9950330853000000
Arg [4] : _vePendle (address): 0x30c6d4e892871220B5Ab66c10db577da96Fb974b
Arg [5] : _gaugeController (address): 0x428f2f93afAc3F96B0DE59854038c585e06165C8
-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 000000000000000000000000ba567cf0d8230c0ad8d8bfc50e587e06d6f118e9
Arg [1] : 0000000000000000000000000000000000000000000000000c2bda6c80727000
Arg [2] : 000000000000000000000000000000000000000000000000193f8f79da76c000
Arg [3] : 000000000000000000000000000000000000000000000000002359c5efe40340
Arg [4] : 00000000000000000000000030c6d4e892871220b5ab66c10db577da96fb974b
Arg [5] : 000000000000000000000000428f2f93afac3f96b0de59854038c585e06165c8
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Net Worth in USD
$0.00
Net Worth in MNT
Multichain Portfolio | 33 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.