// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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
* ====
*
* [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://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity 0.8.19;
import {ERC20} from "openzeppelin-solc-0.8/token/ERC20/ERC20.sol";
import {SafeERC20} from "openzeppelin-solc-0.8/token/ERC20/utils/SafeERC20.sol";
/// @title AssetHelpers Contract
/// @author Enzyme Council <security@enzyme.finance>
/// @notice A util contract for common token actions
abstract contract AssetHelpers {
using SafeERC20 for ERC20;
/// @dev Helper to aggregate amounts of the same assets
function __aggregateAssetAmounts(address[] memory _rawAssets, uint256[] memory _rawAmounts)
internal
pure
returns (address[] memory aggregatedAssets_, uint256[] memory aggregatedAmounts_)
{
if (_rawAssets.length == 0) {
return (aggregatedAssets_, aggregatedAmounts_);
}
uint256 aggregatedAssetCount = 1;
for (uint256 i = 1; i < _rawAssets.length; i++) {
bool contains;
for (uint256 j; j < i; j++) {
if (_rawAssets[i] == _rawAssets[j]) {
contains = true;
break;
}
}
if (!contains) {
aggregatedAssetCount++;
}
}
aggregatedAssets_ = new address[](aggregatedAssetCount);
aggregatedAmounts_ = new uint256[](aggregatedAssetCount);
uint256 aggregatedAssetIndex;
for (uint256 i; i < _rawAssets.length; i++) {
bool contains;
for (uint256 j; j < aggregatedAssetIndex; j++) {
if (_rawAssets[i] == aggregatedAssets_[j]) {
contains = true;
aggregatedAmounts_[j] += _rawAmounts[i];
break;
}
}
if (!contains) {
aggregatedAssets_[aggregatedAssetIndex] = _rawAssets[i];
aggregatedAmounts_[aggregatedAssetIndex] = _rawAmounts[i];
aggregatedAssetIndex++;
}
}
return (aggregatedAssets_, aggregatedAmounts_);
}
/// @dev Helper to approve a target account with the max amount of an asset.
/// This is helpful for fully trusted contracts, such as adapters that
/// interact with external protocol like Uniswap, Compound, etc.
function __approveAssetMaxAsNeeded(address _asset, address _target, uint256 _neededAmount) internal {
uint256 allowance = ERC20(_asset).allowance(address(this), _target);
if (allowance < _neededAmount) {
if (allowance > 0) {
ERC20(_asset).safeApprove(_target, 0);
}
ERC20(_asset).safeApprove(_target, type(uint256).max);
}
}
/// @dev Helper to transfer full asset balance from the current contract to a target
function __pushFullAssetBalance(address _target, address _asset) internal returns (uint256 amountTransferred_) {
amountTransferred_ = ERC20(_asset).balanceOf(address(this));
if (amountTransferred_ > 0) {
ERC20(_asset).safeTransfer(_target, amountTransferred_);
}
return amountTransferred_;
}
/// @dev Helper to transfer full asset balances from the current contract to a target
function __pushFullAssetBalances(address _target, address[] memory _assets)
internal
returns (uint256[] memory amountsTransferred_)
{
amountsTransferred_ = new uint256[](_assets.length);
for (uint256 i; i < _assets.length; i++) {
ERC20 assetContract = ERC20(_assets[i]);
amountsTransferred_[i] = assetContract.balanceOf(address(this));
if (amountsTransferred_[i] > 0) {
assetContract.safeTransfer(_target, amountsTransferred_[i]);
}
}
return amountsTransferred_;
}
}
// 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
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity 0.8.19;
import {Address} from "openzeppelin-solc-0.8/utils/Address.sol";
import {ERC20} from "openzeppelin-solc-0.8/token/ERC20/ERC20.sol";
import {SafeERC20} from "openzeppelin-solc-0.8/token/ERC20/utils/SafeERC20.sol";
import {IWETH} from "../../external-interfaces/IWETH.sol";
import {IAddressListRegistry} from "../../persistent/address-list-registry/IAddressListRegistry.sol";
import {AssetHelpers} from "../../utils/0.8.19/AssetHelpers.sol";
import {IComptroller} from "../core/fund/comptroller/IComptroller.sol";
/// @title DepositWrapper Contract
/// @author Enzyme Council <security@enzyme.finance>
/// @notice Logic related to wrapping deposit actions
contract DepositWrapper is AssetHelpers {
using SafeERC20 for ERC20;
IAddressListRegistry private immutable ADDRESS_LIST_REGISTRY;
uint256 private immutable ALLOWED_EXCHANGES_LIST_ID;
IWETH private immutable WRAPPED_NATIVE_ASSET;
constructor(address _addressListRegistryAddress, uint256 _allowedExchangesListId, IWETH _wrappedNativeAsset) {
ADDRESS_LIST_REGISTRY = IAddressListRegistry(_addressListRegistryAddress);
ALLOWED_EXCHANGES_LIST_ID = _allowedExchangesListId;
WRAPPED_NATIVE_ASSET = _wrappedNativeAsset;
}
/// @dev Needed in case WETH not fully used during exchangeAndBuyShares,
/// to unwrap into ETH and refund
receive() external payable {}
// EXTERNAL FUNCTIONS
/// @notice Exchanges an ERC20 into a fund's denomination asset and then buys shares
/// @param _comptrollerProxy The ComptrollerProxy of the fund
/// @param _minSharesQuantity The minimum quantity of shares to receive
/// @param _inputAsset Asset to swap for the fund's denomination asset
/// @param _maxInputAssetAmount The maximum amount of _inputAsset to use in the swap
/// @param _exchange The exchange on which to swap ERC20 to denomination asset
/// @param _exchangeApproveTarget The _exchange address that should be granted an ERC20 allowance
/// @param _exchangeData The data with which to call the _exchange to execute the swap
/// @param _exchangeMinReceived The minimum amount of the denomination asset to receive from the _exchange
/// @return sharesReceived_ The actual amount of shares received
/// @dev Use a reasonable _exchangeMinReceived always, in case the exchange
/// does not perform as expected (low incoming asset amount, blend of assets, etc).
function exchangeErc20AndBuyShares(
IComptroller _comptrollerProxy,
uint256 _minSharesQuantity,
ERC20 _inputAsset,
uint256 _maxInputAssetAmount,
address _exchange,
address _exchangeApproveTarget,
bytes calldata _exchangeData,
uint256 _exchangeMinReceived
) external returns (uint256 sharesReceived_) {
// Receive the _maxInputAssetAmount from the caller
_inputAsset.safeTransferFrom(msg.sender, address(this), _maxInputAssetAmount);
// Swap to the denominationAsset and buy fund shares
sharesReceived_ = __exchangeAndBuyShares({
_comptrollerProxy: _comptrollerProxy,
_minSharesQuantity: _minSharesQuantity,
_exchange: _exchange,
_exchangeApproveTarget: _exchangeApproveTarget,
_exchangeData: _exchangeData,
_exchangeMinReceived: _exchangeMinReceived,
_inputAsset: _inputAsset,
_maxInputAssetAmount: _maxInputAssetAmount
});
// Refund any remaining _inputAsset not used in the exchange
uint256 remainingInputAsset = _inputAsset.balanceOf(address(this));
if (remainingInputAsset > 0) {
_inputAsset.safeTransfer(msg.sender, remainingInputAsset);
}
return sharesReceived_;
}
/// @notice Exchanges ETH into a fund's denomination asset and then buys shares
/// @param _comptrollerProxy The ComptrollerProxy of the fund
/// @param _minSharesQuantity The minimum quantity of shares to buy with the sent ETH
/// @param _exchange The exchange on which to execute the swap to the denomination asset
/// @param _exchangeApproveTarget The address that should be given an allowance of WETH
/// for the given _exchange
/// @param _exchangeData The data with which to call the exchange to execute the swap
/// to the denomination asset
/// @param _exchangeMinReceived The minimum amount of the denomination asset
/// to receive in the trade for investment (not necessary for WETH)
/// @return sharesReceived_ The actual amount of shares received
/// @dev Use a reasonable _exchangeMinReceived always, in case the exchange
/// does not perform as expected (low incoming asset amount, blend of assets, etc).
/// If the fund's denomination asset is WETH, _exchange, _exchangeApproveTarget, _exchangeData,
/// and _exchangeMinReceived will be ignored.
function exchangeEthAndBuyShares(
IComptroller _comptrollerProxy,
uint256 _minSharesQuantity,
address _exchange,
address _exchangeApproveTarget,
bytes calldata _exchangeData,
uint256 _exchangeMinReceived
) external payable returns (uint256 sharesReceived_) {
ERC20 inputAsset = ERC20(address(WRAPPED_NATIVE_ASSET));
uint256 maxInputAssetAmount = msg.value;
// Wrap ETH into WETH
WRAPPED_NATIVE_ASSET.deposit{value: maxInputAssetAmount}();
// Empty `_exchange` signals no swap is necessary, i.e., denominationAsset is the native asset
if (_exchange == address(0)) {
return __buyShares({
_comptrollerProxy: _comptrollerProxy,
_buyer: msg.sender,
_investmentAmount: maxInputAssetAmount,
_minSharesQuantity: _minSharesQuantity,
_denominationAssetAddress: address(inputAsset)
});
}
// Swap to the denominationAsset and buy fund shares
sharesReceived_ = __exchangeAndBuyShares({
_comptrollerProxy: _comptrollerProxy,
_minSharesQuantity: _minSharesQuantity,
_exchange: _exchange,
_exchangeApproveTarget: _exchangeApproveTarget,
_exchangeData: _exchangeData,
_exchangeMinReceived: _exchangeMinReceived,
_inputAsset: inputAsset,
_maxInputAssetAmount: maxInputAssetAmount
});
// Unwrap and refund any remaining WETH not used in the exchange
uint256 remainingWeth = inputAsset.balanceOf(address(this));
if (remainingWeth > 0) {
WRAPPED_NATIVE_ASSET.withdraw(remainingWeth);
Address.sendValue({recipient: payable(msg.sender), amount: remainingWeth});
}
return sharesReceived_;
}
// PRIVATE FUNCTIONS
/// @dev Helper for buying shares
function __buyShares(
IComptroller _comptrollerProxy,
address _buyer,
uint256 _investmentAmount,
uint256 _minSharesQuantity,
address _denominationAssetAddress
) private returns (uint256 sharesReceived_) {
// Give the ComptrollerProxy max allowance for its denomination asset as necessary
__approveAssetMaxAsNeeded({
_asset: _denominationAssetAddress,
_target: address(_comptrollerProxy),
_neededAmount: _investmentAmount
});
return _comptrollerProxy.buySharesOnBehalf({
_buyer: _buyer,
_investmentAmount: _investmentAmount,
_minSharesQuantity: _minSharesQuantity
});
}
/// @dev Helper to exchange an asset for the fund's denomination asset and then buy shares
function __exchangeAndBuyShares(
IComptroller _comptrollerProxy,
uint256 _minSharesQuantity,
address _exchange,
address _exchangeApproveTarget,
bytes calldata _exchangeData,
uint256 _exchangeMinReceived,
ERC20 _inputAsset,
uint256 _maxInputAssetAmount
) private returns (uint256 sharesReceived_) {
require(
ADDRESS_LIST_REGISTRY.isInList({_id: ALLOWED_EXCHANGES_LIST_ID, _item: _exchange}),
"__exchangeAndBuyShares: Unallowed _exchange"
);
// Exchange the _inputAsset to the fund's denomination asset
__approveAssetMaxAsNeeded({
_asset: address(_inputAsset),
_target: _exchangeApproveTarget,
_neededAmount: _maxInputAssetAmount
});
Address.functionCall({target: _exchange, data: _exchangeData});
// Confirm the min amount of denomination asset was received in the exchange
ERC20 denominationAsset = ERC20(_comptrollerProxy.getDenominationAsset());
uint256 investmentAmount = denominationAsset.balanceOf(address(this));
require(investmentAmount >= _exchangeMinReceived, "__exchangeAndBuyShares: _exchangeMinReceived not met");
// Buy fund shares
return __buyShares({
_comptrollerProxy: _comptrollerProxy,
_buyer: msg.sender,
_investmentAmount: investmentAmount,
_minSharesQuantity: _minSharesQuantity,
_denominationAssetAddress: address(denominationAsset)
});
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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 Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @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) public virtual override 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) public 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
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* 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");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_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 += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_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;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= 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 {}
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
pragma experimental ABIEncoderV2;
/// @title IAddressListRegistry Interface
/// @author Enzyme Council <security@enzyme.finance>
interface IAddressListRegistry {
enum UpdateType {
None,
AddOnly,
RemoveOnly,
AddAndRemove
}
/////////////////////
// LIST MANAGEMENT //
/////////////////////
function addToList(uint256 _id, address[] calldata _items) external;
function attestLists(uint256[] calldata _ids, string[] calldata _descriptions) external;
function createList(address _owner, UpdateType _updateType, address[] calldata _initialItems)
external
returns (uint256 id_);
function removeFromList(uint256 _id, address[] calldata _items) external;
function setListOwner(uint256 _id, address _nextOwner) external;
function setListUpdateType(uint256 _id, UpdateType _nextUpdateType) external;
/////////////////
// LIST SEARCH //
/////////////////
function areAllInAllLists(uint256[] memory _ids, address[] memory _items)
external
view
returns (bool areAllInAllLists_);
function areAllInList(uint256 _id, address[] memory _items) external view returns (bool areAllInList_);
function areAllInSomeOfLists(uint256[] memory _ids, address[] memory _items)
external
view
returns (bool areAllInSomeOfLists_);
function areAllNotInAnyOfLists(uint256[] memory _ids, address[] memory _items)
external
view
returns (bool areAllNotInAnyOfLists_);
function areAllNotInList(uint256 _id, address[] memory _items) external view returns (bool areAllNotInList_);
function isInAllLists(uint256[] memory _ids, address _item) external view returns (bool isInAllLists_);
function isInList(uint256 _id, address _item) external view returns (bool isInList_);
function isInSomeOfLists(uint256[] memory _ids, address _item) external view returns (bool isInSomeOfLists_);
///////////////////
// STATE GETTERS //
///////////////////
function getListCount() external view returns (uint256 count_);
function getListOwner(uint256 _id) external view returns (address owner_);
function getListUpdateType(uint256 _id) external view returns (UpdateType updateType_);
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
import {IVault} from "../vault/IVault.sol";
/// @title IComptroller Interface
/// @author Enzyme Council <security@enzyme.finance>
interface IComptroller {
function activate(bool _isMigration) external;
function buyBackProtocolFeeShares(uint256 _sharesAmount) external;
function buyShares(uint256 _investmentAmount, uint256 _minSharesQuantity)
external
returns (uint256 sharesReceived_);
function buySharesOnBehalf(address _buyer, uint256 _investmentAmount, uint256 _minSharesQuantity)
external
returns (uint256 sharesReceived_);
function calcGav() external returns (uint256 gav_);
function calcGrossShareValue() external returns (uint256 grossShareValue_);
function callOnExtension(address _extension, uint256 _actionId, bytes calldata _callArgs) external;
function deployGasRelayPaymaster() external;
function depositToGasRelayPaymaster() external;
function destructActivated(uint256 _deactivateFeeManagerGasLimit, uint256 _payProtocolFeeGasLimit) external;
function destructUnactivated() external;
function doesAutoProtocolFeeSharesBuyback() external view returns (bool doesAutoBuyback_);
function getDenominationAsset() external view returns (address denominationAsset_);
function getDispatcher() external view returns (address dispatcher_);
function getExternalPositionManager() external view returns (address externalPositionManager_);
function getFeeManager() external view returns (address feeManager_);
function getFundDeployer() external view returns (address fundDeployer_);
function getGasRelayPaymaster() external view returns (address gasRelayPaymaster_);
function getIntegrationManager() external view returns (address integrationManager_);
function getLastSharesBoughtTimestampForAccount(address _who)
external
view
returns (uint256 lastSharesBoughtTimestamp_);
function getMlnToken() external view returns (address mlnToken_);
function getPolicyManager() external view returns (address policyManager_);
function getProtocolFeeReserve() external view returns (address protocolFeeReserve_);
function getSharesActionTimelock() external view returns (uint256 sharesActionTimelock_);
function getValueInterpreter() external view returns (address valueInterpreter_);
function getVaultProxy() external view returns (address vaultProxy_);
function getWethToken() external view returns (address wethToken_);
function init(address _denominationAsset, uint256 _sharesActionTimelock) external;
function permissionedVaultAction(IVault.VaultAction _action, bytes calldata _actionData) external;
function preTransferSharesHook(address _sender, address _recipient, uint256 _amount) external;
function preTransferSharesHookFreelyTransferable(address _sender) external view;
function redeemSharesForSpecificAssets(
address _recipient,
uint256 _sharesQuantity,
address[] calldata _payoutAssets,
uint256[] calldata _payoutAssetPercentages
) external returns (uint256[] memory payoutAmounts_);
function redeemSharesInKind(
address _recipient,
uint256 _sharesQuantity,
address[] calldata _additionalAssets,
address[] calldata _assetsToSkip
) external returns (address[] memory payoutAssets_, uint256[] memory payoutAmounts_);
function setAutoProtocolFeeSharesBuyback(bool _nextAutoProtocolFeeSharesBuyback) external;
function setGasRelayPaymaster(address _nextGasRelayPaymaster) external;
function setVaultProxy(address _vaultProxy) external;
function shutdownGasRelayPaymaster() external;
function vaultCallOnContract(address _contract, bytes4 _selector, bytes calldata _encodedArgs)
external
returns (bytes memory returnData_);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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: 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
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
/// @title IExternalPositionVault interface
/// @author Enzyme Council <security@enzyme.finance>
/// Provides an interface to get the externalPositionLib for a given type from the Vault
interface IExternalPositionVault {
function getExternalPositionLibForType(uint256) external view returns (address);
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
/// @title IFreelyTransferableSharesVault Interface
/// @author Enzyme Council <security@enzyme.finance>
/// @notice Provides the interface for determining whether a vault's shares
/// are guaranteed to be freely transferable.
/// @dev DO NOT EDIT CONTRACT
interface IFreelyTransferableSharesVault {
function sharesAreFreelyTransferable() external view returns (bool sharesAreFreelyTransferable_);
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
/// @title IMigratableVault Interface
/// @author Enzyme Council <security@enzyme.finance>
/// @dev DO NOT EDIT CONTRACT
interface IMigratableVault {
function canMigrate(address _who) external view returns (bool canMigrate_);
function init(address _owner, address _accessor, string calldata _fundName) external;
function setAccessor(address _nextAccessor) external;
function setVaultLib(address _nextVaultLib) external;
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
import {IExternalPositionVault} from "../../../../persistent/vault/interfaces/IExternalPositionVault.sol";
import {IFreelyTransferableSharesVault} from
"../../../../persistent/vault/interfaces/IFreelyTransferableSharesVault.sol";
import {IMigratableVault} from "../../../../persistent/vault/interfaces/IMigratableVault.sol";
import {IVaultCore} from "../../../../persistent/vault/interfaces/IVaultCore.sol";
/// @title IVault Interface
/// @author Enzyme Council <security@enzyme.finance>
interface IVault is IVaultCore, IMigratableVault, IFreelyTransferableSharesVault, IExternalPositionVault {
enum VaultAction {
None,
// Shares management
BurnShares,
MintShares,
TransferShares,
// Asset management
AddTrackedAsset,
ApproveAssetSpender,
RemoveTrackedAsset,
WithdrawAssetTo,
// External position management
AddExternalPosition,
CallOnExternalPosition,
RemoveExternalPosition
}
function addAssetManagers(address[] calldata _managers) external;
function addTrackedAsset(address _asset) external;
function burnShares(address _target, uint256 _amount) external;
function buyBackProtocolFeeShares(uint256 _sharesAmount, uint256 _mlnValue, uint256 _gav) external;
function callOnContract(address _contract, bytes calldata _callData) external returns (bytes memory returnData_);
function canManageAssets(address _who) external view returns (bool canManageAssets_);
function canRelayCalls(address _who) external view returns (bool canRelayCalls_);
function claimOwnership() external;
function getActiveExternalPositions() external view returns (address[] memory activeExternalPositions_);
function getExternalPositionManager() external view returns (address externalPositionManager_);
function getFundDeployer() external view returns (address fundDeployer_);
function getMlnBurner() external view returns (address mlnBurner_);
function getMlnToken() external view returns (address mlnToken_);
function getNominatedOwner() external view returns (address nominatedOwner_);
function getPositionsLimit() external view returns (uint256 positionsLimit_);
function getProtocolFeeReserve() external view returns (address protocolFeeReserve_);
function getProtocolFeeTracker() external view returns (address protocolFeeTracker_);
function getTrackedAssets() external view returns (address[] memory trackedAssets_);
function isActiveExternalPosition(address _externalPosition)
external
view
returns (bool isActiveExternalPosition_);
function isAssetManager(address _who) external view returns (bool isAssetManager_);
function isTrackedAsset(address _asset) external view returns (bool isTrackedAsset_);
function mintShares(address _target, uint256 _amount) external;
function payProtocolFee() external;
function receiveValidatedVaultAction(VaultAction _action, bytes calldata _actionData) external;
function removeAssetManagers(address[] calldata _managers) external;
function removeNominatedOwner() external;
function setAccessorForFundReconfiguration(address _nextAccessor) external;
function setFreelyTransferableShares() external;
function setMigrator(address _nextMigrator) external;
function setName(string calldata _nextName) external;
function setNominatedOwner(address _nextNominatedOwner) external;
function setSymbol(string calldata _nextSymbol) external;
function transferShares(address _from, address _to, uint256 _amount) external;
function withdrawAssetTo(address _asset, address _target, uint256 _amount) external;
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
/// @title IVaultCore interface
/// @author Enzyme Council <security@enzyme.finance>
/// @notice Interface for getters of core vault storage
/// @dev DO NOT EDIT CONTRACT
interface IVaultCore {
function getAccessor() external view returns (address accessor_);
function getCreator() external view returns (address creator_);
function getMigrator() external view returns (address migrator_);
function getOwner() external view returns (address owner_);
}
// SPDX-License-Identifier: GPL-3.0
/*
This file is part of the Enzyme Protocol.
(c) Enzyme Council <council@enzyme.finance>
For the full license information, please view the LICENSE
file that was distributed with this source code.
*/
pragma solidity >=0.6.0 <0.9.0;
/// @title IWETH Interface
/// @author Enzyme Council <security@enzyme.finance>
interface IWETH {
function deposit() external payable;
function withdraw(uint256) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/draft-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;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
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));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
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");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
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");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-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);
}
{
"compilationTarget": {
"contracts/release/peripheral/DepositWrapper.sol": "DepositWrapper"
},
"evmVersion": "paris",
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[{"inputs":[{"internalType":"address","name":"_addressListRegistryAddress","type":"address"},{"internalType":"uint256","name":"_allowedExchangesListId","type":"uint256"},{"internalType":"contract IWETH","name":"_wrappedNativeAsset","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"contract IComptroller","name":"_comptrollerProxy","type":"address"},{"internalType":"uint256","name":"_minSharesQuantity","type":"uint256"},{"internalType":"contract ERC20","name":"_inputAsset","type":"address"},{"internalType":"uint256","name":"_maxInputAssetAmount","type":"uint256"},{"internalType":"address","name":"_exchange","type":"address"},{"internalType":"address","name":"_exchangeApproveTarget","type":"address"},{"internalType":"bytes","name":"_exchangeData","type":"bytes"},{"internalType":"uint256","name":"_exchangeMinReceived","type":"uint256"}],"name":"exchangeErc20AndBuyShares","outputs":[{"internalType":"uint256","name":"sharesReceived_","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IComptroller","name":"_comptrollerProxy","type":"address"},{"internalType":"uint256","name":"_minSharesQuantity","type":"uint256"},{"internalType":"address","name":"_exchange","type":"address"},{"internalType":"address","name":"_exchangeApproveTarget","type":"address"},{"internalType":"bytes","name":"_exchangeData","type":"bytes"},{"internalType":"uint256","name":"_exchangeMinReceived","type":"uint256"}],"name":"exchangeEthAndBuyShares","outputs":[{"internalType":"uint256","name":"sharesReceived_","type":"uint256"}],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]