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Contract Name:
CompoundStakerRewards
Compiler Version
v0.8.25+commit.b61c2a91
Optimization Enabled:
Yes with 200 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IERC20, SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ERC4626} from "@openzeppelin/contracts/token/ERC20/extensions/ERC4626.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {IVaultTokenized} from "@symbioticfi/core/src/interfaces/vault/IVaultTokenized.sol";
import {IStakerRewards} from "src/interfaces/stakerRewards/IStakerRewards.sol";
contract CompoundStakerRewards is ERC4626 {
using SafeERC20 for IERC20;
IVaultTokenized public immutable vault;
IERC20 public immutable token;
IStakerRewards public immutable rewards;
event Compound(uint256 amount, uint256 shares);
constructor(
IVaultTokenized _vault,
IStakerRewards _rewards,
string memory name,
string memory symbol
) ERC4626(IERC20(address(_vault))) ERC20(name, symbol) {
vault = _vault;
token = IERC20(_vault.collateral());
rewards = _rewards;
}
/**
* @notice Claim staking rewards and deposit into the symbiotic vault.
* @param network The address of the network to claim rewards from.
* @param maxRewards The maximum number of reward distributions to claim.
*/
function compound(address network, uint256 maxRewards) external {
rewards.claimRewards(
address(this),
address(token),
abi.encode(network, maxRewards, new bytes(0))
);
uint256 rewardsBalance = token.balanceOf(address(this));
token.forceApprove(address(vault), rewardsBalance);
(uint256 amount, uint256 shares) = vault.deposit(
address(this),
rewardsBalance
);
emit Compound(amount, shares);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../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 An operation with an ERC20 token failed.
*/
error SafeERC20FailedOperation(address token);
/**
* @dev Indicates a failed `decreaseAllowance` request.
*/
error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);
/**
* @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.encodeCall(token.transfer, (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.encodeCall(token.transferFrom, (from, to, 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);
forceApprove(token, spender, oldAllowance + value);
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
* value, non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
unchecked {
uint256 currentAllowance = token.allowance(address(this), spender);
if (currentAllowance < requestedDecrease) {
revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
}
forceApprove(token, spender, currentAllowance - requestedDecrease);
}
}
/**
* @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.encodeCall(token.approve, (spender, value));
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @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);
if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @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(token).code.length > 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC4626.sol)
pragma solidity ^0.8.20;
import {IERC20, IERC20Metadata, ERC20} from "../ERC20.sol";
import {SafeERC20} from "../utils/SafeERC20.sol";
import {IERC4626} from "../../../interfaces/IERC4626.sol";
import {Math} from "../../../utils/math/Math.sol";
/**
* @dev Implementation of the ERC4626 "Tokenized Vault Standard" as defined in
* https://eips.ethereum.org/EIPS/eip-4626[EIP-4626].
*
* This extension allows the minting and burning of "shares" (represented using the ERC20 inheritance) in exchange for
* underlying "assets" through standardized {deposit}, {mint}, {redeem} and {burn} workflows. This contract extends
* the ERC20 standard. Any additional extensions included along it would affect the "shares" token represented by this
* contract and not the "assets" token which is an independent contract.
*
* [CAUTION]
* ====
* In empty (or nearly empty) ERC-4626 vaults, deposits are at high risk of being stolen through frontrunning
* with a "donation" to the vault that inflates the price of a share. This is variously known as a donation or inflation
* attack and is essentially a problem of slippage. Vault deployers can protect against this attack by making an initial
* deposit of a non-trivial amount of the asset, such that price manipulation becomes infeasible. Withdrawals may
* similarly be affected by slippage. Users can protect against this attack as well as unexpected slippage in general by
* verifying the amount received is as expected, using a wrapper that performs these checks such as
* https://github.com/fei-protocol/ERC4626#erc4626router-and-base[ERC4626Router].
*
* Since v4.9, this implementation uses virtual assets and shares to mitigate that risk. The `_decimalsOffset()`
* corresponds to an offset in the decimal representation between the underlying asset's decimals and the vault
* decimals. This offset also determines the rate of virtual shares to virtual assets in the vault, which itself
* determines the initial exchange rate. While not fully preventing the attack, analysis shows that the default offset
* (0) makes it non-profitable, as a result of the value being captured by the virtual shares (out of the attacker's
* donation) matching the attacker's expected gains. With a larger offset, the attack becomes orders of magnitude more
* expensive than it is profitable. More details about the underlying math can be found
* xref:erc4626.adoc#inflation-attack[here].
*
* The drawback of this approach is that the virtual shares do capture (a very small) part of the value being accrued
* to the vault. Also, if the vault experiences losses, the users try to exit the vault, the virtual shares and assets
* will cause the first user to exit to experience reduced losses in detriment to the last users that will experience
* bigger losses. Developers willing to revert back to the pre-v4.9 behavior just need to override the
* `_convertToShares` and `_convertToAssets` functions.
*
* To learn more, check out our xref:ROOT:erc4626.adoc[ERC-4626 guide].
* ====
*/
abstract contract ERC4626 is ERC20, IERC4626 {
using Math for uint256;
IERC20 private immutable _asset;
uint8 private immutable _underlyingDecimals;
/**
* @dev Attempted to deposit more assets than the max amount for `receiver`.
*/
error ERC4626ExceededMaxDeposit(address receiver, uint256 assets, uint256 max);
/**
* @dev Attempted to mint more shares than the max amount for `receiver`.
*/
error ERC4626ExceededMaxMint(address receiver, uint256 shares, uint256 max);
/**
* @dev Attempted to withdraw more assets than the max amount for `receiver`.
*/
error ERC4626ExceededMaxWithdraw(address owner, uint256 assets, uint256 max);
/**
* @dev Attempted to redeem more shares than the max amount for `receiver`.
*/
error ERC4626ExceededMaxRedeem(address owner, uint256 shares, uint256 max);
/**
* @dev Set the underlying asset contract. This must be an ERC20-compatible contract (ERC20 or ERC777).
*/
constructor(IERC20 asset_) {
(bool success, uint8 assetDecimals) = _tryGetAssetDecimals(asset_);
_underlyingDecimals = success ? assetDecimals : 18;
_asset = asset_;
}
/**
* @dev Attempts to fetch the asset decimals. A return value of false indicates that the attempt failed in some way.
*/
function _tryGetAssetDecimals(IERC20 asset_) private view returns (bool, uint8) {
(bool success, bytes memory encodedDecimals) = address(asset_).staticcall(
abi.encodeCall(IERC20Metadata.decimals, ())
);
if (success && encodedDecimals.length >= 32) {
uint256 returnedDecimals = abi.decode(encodedDecimals, (uint256));
if (returnedDecimals <= type(uint8).max) {
return (true, uint8(returnedDecimals));
}
}
return (false, 0);
}
/**
* @dev Decimals are computed by adding the decimal offset on top of the underlying asset's decimals. This
* "original" value is cached during construction of the vault contract. If this read operation fails (e.g., the
* asset has not been created yet), a default of 18 is used to represent the underlying asset's decimals.
*
* See {IERC20Metadata-decimals}.
*/
function decimals() public view virtual override(IERC20Metadata, ERC20) returns (uint8) {
return _underlyingDecimals + _decimalsOffset();
}
/** @dev See {IERC4626-asset}. */
function asset() public view virtual returns (address) {
return address(_asset);
}
/** @dev See {IERC4626-totalAssets}. */
function totalAssets() public view virtual returns (uint256) {
return _asset.balanceOf(address(this));
}
/** @dev See {IERC4626-convertToShares}. */
function convertToShares(uint256 assets) public view virtual returns (uint256) {
return _convertToShares(assets, Math.Rounding.Floor);
}
/** @dev See {IERC4626-convertToAssets}. */
function convertToAssets(uint256 shares) public view virtual returns (uint256) {
return _convertToAssets(shares, Math.Rounding.Floor);
}
/** @dev See {IERC4626-maxDeposit}. */
function maxDeposit(address) public view virtual returns (uint256) {
return type(uint256).max;
}
/** @dev See {IERC4626-maxMint}. */
function maxMint(address) public view virtual returns (uint256) {
return type(uint256).max;
}
/** @dev See {IERC4626-maxWithdraw}. */
function maxWithdraw(address owner) public view virtual returns (uint256) {
return _convertToAssets(balanceOf(owner), Math.Rounding.Floor);
}
/** @dev See {IERC4626-maxRedeem}. */
function maxRedeem(address owner) public view virtual returns (uint256) {
return balanceOf(owner);
}
/** @dev See {IERC4626-previewDeposit}. */
function previewDeposit(uint256 assets) public view virtual returns (uint256) {
return _convertToShares(assets, Math.Rounding.Floor);
}
/** @dev See {IERC4626-previewMint}. */
function previewMint(uint256 shares) public view virtual returns (uint256) {
return _convertToAssets(shares, Math.Rounding.Ceil);
}
/** @dev See {IERC4626-previewWithdraw}. */
function previewWithdraw(uint256 assets) public view virtual returns (uint256) {
return _convertToShares(assets, Math.Rounding.Ceil);
}
/** @dev See {IERC4626-previewRedeem}. */
function previewRedeem(uint256 shares) public view virtual returns (uint256) {
return _convertToAssets(shares, Math.Rounding.Floor);
}
/** @dev See {IERC4626-deposit}. */
function deposit(uint256 assets, address receiver) public virtual returns (uint256) {
uint256 maxAssets = maxDeposit(receiver);
if (assets > maxAssets) {
revert ERC4626ExceededMaxDeposit(receiver, assets, maxAssets);
}
uint256 shares = previewDeposit(assets);
_deposit(_msgSender(), receiver, assets, shares);
return shares;
}
/** @dev See {IERC4626-mint}.
*
* As opposed to {deposit}, minting is allowed even if the vault is in a state where the price of a share is zero.
* In this case, the shares will be minted without requiring any assets to be deposited.
*/
function mint(uint256 shares, address receiver) public virtual returns (uint256) {
uint256 maxShares = maxMint(receiver);
if (shares > maxShares) {
revert ERC4626ExceededMaxMint(receiver, shares, maxShares);
}
uint256 assets = previewMint(shares);
_deposit(_msgSender(), receiver, assets, shares);
return assets;
}
/** @dev See {IERC4626-withdraw}. */
function withdraw(uint256 assets, address receiver, address owner) public virtual returns (uint256) {
uint256 maxAssets = maxWithdraw(owner);
if (assets > maxAssets) {
revert ERC4626ExceededMaxWithdraw(owner, assets, maxAssets);
}
uint256 shares = previewWithdraw(assets);
_withdraw(_msgSender(), receiver, owner, assets, shares);
return shares;
}
/** @dev See {IERC4626-redeem}. */
function redeem(uint256 shares, address receiver, address owner) public virtual returns (uint256) {
uint256 maxShares = maxRedeem(owner);
if (shares > maxShares) {
revert ERC4626ExceededMaxRedeem(owner, shares, maxShares);
}
uint256 assets = previewRedeem(shares);
_withdraw(_msgSender(), receiver, owner, assets, shares);
return assets;
}
/**
* @dev Internal conversion function (from assets to shares) with support for rounding direction.
*/
function _convertToShares(uint256 assets, Math.Rounding rounding) internal view virtual returns (uint256) {
return assets.mulDiv(totalSupply() + 10 ** _decimalsOffset(), totalAssets() + 1, rounding);
}
/**
* @dev Internal conversion function (from shares to assets) with support for rounding direction.
*/
function _convertToAssets(uint256 shares, Math.Rounding rounding) internal view virtual returns (uint256) {
return shares.mulDiv(totalAssets() + 1, totalSupply() + 10 ** _decimalsOffset(), rounding);
}
/**
* @dev Deposit/mint common workflow.
*/
function _deposit(address caller, address receiver, uint256 assets, uint256 shares) internal virtual {
// If _asset is ERC777, `transferFrom` can trigger a reentrancy BEFORE the transfer happens through the
// `tokensToSend` hook. On the other hand, the `tokenReceived` hook, that is triggered after the transfer,
// calls the vault, which is assumed not malicious.
//
// Conclusion: we need to do the transfer before we mint so that any reentrancy would happen before the
// assets are transferred and before the shares are minted, which is a valid state.
// slither-disable-next-line reentrancy-no-eth
SafeERC20.safeTransferFrom(_asset, caller, address(this), assets);
_mint(receiver, shares);
emit Deposit(caller, receiver, assets, shares);
}
/**
* @dev Withdraw/redeem common workflow.
*/
function _withdraw(
address caller,
address receiver,
address owner,
uint256 assets,
uint256 shares
) internal virtual {
if (caller != owner) {
_spendAllowance(owner, caller, shares);
}
// If _asset is ERC777, `transfer` can trigger a reentrancy AFTER the transfer happens through the
// `tokensReceived` hook. On the other hand, the `tokensToSend` hook, that is triggered before the transfer,
// calls the vault, which is assumed not malicious.
//
// Conclusion: we need to do the transfer after the burn so that any reentrancy would happen after the
// shares are burned and after the assets are transferred, which is a valid state.
_burn(owner, shares);
SafeERC20.safeTransfer(_asset, receiver, assets);
emit Withdraw(caller, receiver, owner, assets, shares);
}
function _decimalsOffset() internal view virtual returns (uint8) {
return 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.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}.
*
* 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].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* 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.
*/
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
mapping(address account => uint256) private _balances;
mapping(address account => mapping(address spender => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* 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 returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual 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 default value returned by this function, unless
* it's 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 returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual 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 `value`.
*/
function transfer(address to, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_transfer(owner, to, value);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `value` 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 value) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, value);
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 `value`.
* - the caller must have allowance for ``from``'s tokens of at least
* `value`.
*/
function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, value);
_transfer(from, to, value);
return true;
}
/**
* @dev Moves a `value` 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.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _transfer(address from, address to, uint256 value) internal {
if (from == address(0)) {
revert ERC20InvalidSender(address(0));
}
if (to == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(from, to, value);
}
/**
* @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
* (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
* this function.
*
* Emits a {Transfer} event.
*/
function _update(address from, address to, uint256 value) internal virtual {
if (from == address(0)) {
// Overflow check required: The rest of the code assumes that totalSupply never overflows
_totalSupply += value;
} else {
uint256 fromBalance = _balances[from];
if (fromBalance < value) {
revert ERC20InsufficientBalance(from, fromBalance, value);
}
unchecked {
// Overflow not possible: value <= fromBalance <= totalSupply.
_balances[from] = fromBalance - value;
}
}
if (to == address(0)) {
unchecked {
// Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
_totalSupply -= value;
}
} else {
unchecked {
// Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
_balances[to] += value;
}
}
emit Transfer(from, to, value);
}
/**
* @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
* Relies on the `_update` mechanism
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _mint(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(address(0), account, value);
}
/**
* @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
* Relies on the `_update` mechanism.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead
*/
function _burn(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidSender(address(0));
}
_update(account, address(0), value);
}
/**
* @dev Sets `value` 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.
*
* Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
*/
function _approve(address owner, address spender, uint256 value) internal {
_approve(owner, spender, value, true);
}
/**
* @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
*
* By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
* `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
* `Approval` event during `transferFrom` operations.
*
* Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
* true using the following override:
* ```
* function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
* super._approve(owner, spender, value, true);
* }
* ```
*
* Requirements are the same as {_approve}.
*/
function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
if (owner == address(0)) {
revert ERC20InvalidApprover(address(0));
}
if (spender == address(0)) {
revert ERC20InvalidSpender(address(0));
}
_allowances[owner][spender] = value;
if (emitEvent) {
emit Approval(owner, spender, value);
}
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `value`.
*
* Does not update the allowance value in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Does not emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
if (currentAllowance < value) {
revert ERC20InsufficientAllowance(spender, currentAllowance, value);
}
unchecked {
_approve(owner, spender, currentAllowance - value, false);
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IVault} from "./IVault.sol";
interface IVaultTokenized is IVault {
/**
* @notice Initial parameters needed for a tokenized vault deployment.
* @param baseParams initial parameters needed for a vault deployment (InitParams)
* @param name name for the ERC20 tokenized vault
* @param symbol symbol for the ERC20 tokenized vault
*/
struct InitParamsTokenized {
InitParams baseParams;
string name;
string symbol;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IStakerRewards {
/**
* @notice Emitted when a reward is distributed.
* @param network network on behalf of which the reward is distributed
* @param token address of the token
* @param amount amount of tokens
* @param data some used data
*/
event DistributeRewards(address indexed network, address indexed token, uint256 amount, bytes data);
/**
* @notice Get a version of the staker rewards contract (different versions mean different interfaces).
* @return version of the staker rewards contract
* @dev Must return 1 for this one.
*/
function version() external view returns (uint64);
/**
* @notice Get an amount of rewards claimable by a particular account of a given token.
* @param token address of the token
* @param account address of the claimer
* @param data some data to use
* @return amount of claimable tokens
*/
function claimable(address token, address account, bytes calldata data) external view returns (uint256);
/**
* @notice Distribute rewards on behalf of a particular network using a given token.
* @param network network on behalf of which the reward to distribute
* @param token address of the token
* @param amount amount of tokens
* @param data some data to use
*/
function distributeRewards(address network, address token, uint256 amount, bytes calldata data) external;
/**
* @notice Claim rewards using a given token.
* @param recipient address of the tokens' recipient
* @param token address of the token
* @param data some data to use
*/
function claimRewards(address recipient, address token, bytes calldata data) external;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @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 value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` 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 value) external returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.20;
/**
* @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.
*
* ==== Security Considerations
*
* There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
* expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
* considered as an intention to spend the allowance in any specific way. The second is that because permits have
* built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
* take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
* generally recommended is:
*
* ```solidity
* function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
* try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
* doThing(..., value);
* }
*
* function doThing(..., uint256 value) public {
* token.safeTransferFrom(msg.sender, address(this), value);
* ...
* }
* ```
*
* Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
* `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
* {SafeERC20-safeTransferFrom}).
*
* Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
* contracts should have entry points that don't rely on permit.
*/
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].
*
* CAUTION: See Security Considerations above.
*/
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: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)
pragma solidity ^0.8.20;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev The ETH balance of the account is not enough to perform the operation.
*/
error AddressInsufficientBalance(address account);
/**
* @dev There's no code at `target` (it is not a contract).
*/
error AddressEmptyCode(address target);
/**
* @dev A call to an address target failed. The target may have reverted.
*/
error FailedInnerCall();
/**
* @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
if (address(this).balance < amount) {
revert AddressInsufficientBalance(address(this));
}
(bool success, ) = recipient.call{value: amount}("");
if (!success) {
revert FailedInnerCall();
}
}
/**
* @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 or custom error, it is bubbled
* up by this function (like regular Solidity function calls). However, if
* the call reverted with no returned reason, this function reverts with a
* {FailedInnerCall} error.
*
* 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.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0);
}
/**
* @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`.
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
if (address(this).balance < value) {
revert AddressInsufficientBalance(address(this));
}
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
* was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
* unsuccessful call.
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata
) internal view returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
// only check if target is a contract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
if (returndata.length == 0 && target.code.length == 0) {
revert AddressEmptyCode(target);
}
return returndata;
}
}
/**
* @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
* revert reason or with a default {FailedInnerCall} error.
*/
function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
return returndata;
}
}
/**
* @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
*/
function _revert(bytes memory returndata) 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 FailedInnerCall();
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC4626.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../token/ERC20/IERC20.sol";
import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol";
/**
* @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
* https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
*/
interface IERC4626 is IERC20, IERC20Metadata {
event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);
event Withdraw(
address indexed sender,
address indexed receiver,
address indexed owner,
uint256 assets,
uint256 shares
);
/**
* @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
*
* - MUST be an ERC-20 token contract.
* - MUST NOT revert.
*/
function asset() external view returns (address assetTokenAddress);
/**
* @dev Returns the total amount of the underlying asset that is “managed” by Vault.
*
* - SHOULD include any compounding that occurs from yield.
* - MUST be inclusive of any fees that are charged against assets in the Vault.
* - MUST NOT revert.
*/
function totalAssets() external view returns (uint256 totalManagedAssets);
/**
* @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
* scenario where all the conditions are met.
*
* - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
* - MUST NOT show any variations depending on the caller.
* - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
* - MUST NOT revert.
*
* NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
* “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
* from.
*/
function convertToShares(uint256 assets) external view returns (uint256 shares);
/**
* @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
* scenario where all the conditions are met.
*
* - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
* - MUST NOT show any variations depending on the caller.
* - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
* - MUST NOT revert.
*
* NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
* “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
* from.
*/
function convertToAssets(uint256 shares) external view returns (uint256 assets);
/**
* @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
* through a deposit call.
*
* - MUST return a limited value if receiver is subject to some deposit limit.
* - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
* - MUST NOT revert.
*/
function maxDeposit(address receiver) external view returns (uint256 maxAssets);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
* current on-chain conditions.
*
* - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
* call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
* in the same transaction.
* - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
* deposit would be accepted, regardless if the user has enough tokens approved, etc.
* - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by depositing.
*/
function previewDeposit(uint256 assets) external view returns (uint256 shares);
/**
* @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
*
* - MUST emit the Deposit event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
* deposit execution, and are accounted for during deposit.
* - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
* approving enough underlying tokens to the Vault contract, etc).
*
* NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
*/
function deposit(uint256 assets, address receiver) external returns (uint256 shares);
/**
* @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
* - MUST return a limited value if receiver is subject to some mint limit.
* - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
* - MUST NOT revert.
*/
function maxMint(address receiver) external view returns (uint256 maxShares);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
* current on-chain conditions.
*
* - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
* in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
* same transaction.
* - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
* would be accepted, regardless if the user has enough tokens approved, etc.
* - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by minting.
*/
function previewMint(uint256 shares) external view returns (uint256 assets);
/**
* @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
*
* - MUST emit the Deposit event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
* execution, and are accounted for during mint.
* - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
* approving enough underlying tokens to the Vault contract, etc).
*
* NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
*/
function mint(uint256 shares, address receiver) external returns (uint256 assets);
/**
* @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
* Vault, through a withdraw call.
*
* - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
* - MUST NOT revert.
*/
function maxWithdraw(address owner) external view returns (uint256 maxAssets);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
* given current on-chain conditions.
*
* - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
* call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
* called
* in the same transaction.
* - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
* the withdrawal would be accepted, regardless if the user has enough shares, etc.
* - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by depositing.
*/
function previewWithdraw(uint256 assets) external view returns (uint256 shares);
/**
* @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
*
* - MUST emit the Withdraw event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
* withdraw execution, and are accounted for during withdraw.
* - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
* not having enough shares, etc).
*
* Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
* Those methods should be performed separately.
*/
function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);
/**
* @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
* through a redeem call.
*
* - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
* - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
* - MUST NOT revert.
*/
function maxRedeem(address owner) external view returns (uint256 maxShares);
/**
* @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
* given current on-chain conditions.
*
* - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
* in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
* same transaction.
* - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
* redemption would be accepted, regardless if the user has enough shares, etc.
* - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
* - MUST NOT revert.
*
* NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
* share price or some other type of condition, meaning the depositor will lose assets by redeeming.
*/
function previewRedeem(uint256 shares) external view returns (uint256 assets);
/**
* @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
*
* - MUST emit the Withdraw event.
* - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
* redeem execution, and are accounted for during redeem.
* - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
* not having enough shares, etc).
*
* NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
* Those methods should be performed separately.
*/
function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @dev Muldiv operation overflow.
*/
error MathOverflowedMulDiv();
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
return a / b;
}
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0 = x * y; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
if (denominator <= prod1) {
revert MathOverflowedMulDiv();
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*/
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: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @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;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard ERC20 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
*/
interface IERC20Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC20InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC20InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
* @param spender Address that may be allowed to operate on tokens without being their owner.
* @param allowance Amount of tokens a `spender` is allowed to operate with.
* @param needed Minimum amount required to perform a transfer.
*/
error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC20InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `spender` to be approved. Used in approvals.
* @param spender Address that may be allowed to operate on tokens without being their owner.
*/
error ERC20InvalidSpender(address spender);
}
/**
* @dev Standard ERC721 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
*/
interface IERC721Errors {
/**
* @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
* Used in balance queries.
* @param owner Address of the current owner of a token.
*/
error ERC721InvalidOwner(address owner);
/**
* @dev Indicates a `tokenId` whose `owner` is the zero address.
* @param tokenId Identifier number of a token.
*/
error ERC721NonexistentToken(uint256 tokenId);
/**
* @dev Indicates an error related to the ownership over a particular token. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param tokenId Identifier number of a token.
* @param owner Address of the current owner of a token.
*/
error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC721InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC721InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param tokenId Identifier number of a token.
*/
error ERC721InsufficientApproval(address operator, uint256 tokenId);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC721InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC721InvalidOperator(address operator);
}
/**
* @dev Standard ERC1155 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
*/
interface IERC1155Errors {
/**
* @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
* @param balance Current balance for the interacting account.
* @param needed Minimum amount required to perform a transfer.
* @param tokenId Identifier number of a token.
*/
error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
/**
* @dev Indicates a failure with the token `sender`. Used in transfers.
* @param sender Address whose tokens are being transferred.
*/
error ERC1155InvalidSender(address sender);
/**
* @dev Indicates a failure with the token `receiver`. Used in transfers.
* @param receiver Address to which tokens are being transferred.
*/
error ERC1155InvalidReceiver(address receiver);
/**
* @dev Indicates a failure with the `operator`’s approval. Used in transfers.
* @param operator Address that may be allowed to operate on tokens without being their owner.
* @param owner Address of the current owner of a token.
*/
error ERC1155MissingApprovalForAll(address operator, address owner);
/**
* @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
* @param approver Address initiating an approval operation.
*/
error ERC1155InvalidApprover(address approver);
/**
* @dev Indicates a failure with the `operator` to be approved. Used in approvals.
* @param operator Address that may be allowed to operate on tokens without being their owner.
*/
error ERC1155InvalidOperator(address operator);
/**
* @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
* Used in batch transfers.
* @param idsLength Length of the array of token identifiers
* @param valuesLength Length of the array of token amounts
*/
error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IMigratableEntity} from "../common/IMigratableEntity.sol";
import {IVaultStorage} from "./IVaultStorage.sol";
interface IVault is IMigratableEntity, IVaultStorage {
error AlreadyClaimed();
error AlreadySet();
error DelegatorAlreadyInitialized();
error DepositLimitReached();
error InsufficientClaim();
error InsufficientDeposit();
error InsufficientRedemption();
error InsufficientWithdrawal();
error InvalidAccount();
error InvalidCaptureEpoch();
error InvalidClaimer();
error InvalidCollateral();
error InvalidDelegator();
error InvalidEpoch();
error InvalidEpochDuration();
error InvalidLengthEpochs();
error InvalidOnBehalfOf();
error InvalidRecipient();
error InvalidSlasher();
error MissingRoles();
error NotDelegator();
error NotSlasher();
error NotWhitelistedDepositor();
error SlasherAlreadyInitialized();
error TooMuchRedeem();
error TooMuchWithdraw();
/**
* @notice Initial parameters needed for a vault deployment.
* @param collateral vault's underlying collateral
* @param burner vault's burner to issue debt to (e.g., 0xdEaD or some unwrapper contract)
* @param epochDuration duration of the vault epoch (it determines sync points for withdrawals)
* @param depositWhitelist if enabling deposit whitelist
* @param isDepositLimit if enabling deposit limit
* @param depositLimit deposit limit (maximum amount of the collateral that can be in the vault simultaneously)
* @param defaultAdminRoleHolder address of the initial DEFAULT_ADMIN_ROLE holder
* @param depositWhitelistSetRoleHolder address of the initial DEPOSIT_WHITELIST_SET_ROLE holder
* @param depositorWhitelistRoleHolder address of the initial DEPOSITOR_WHITELIST_ROLE holder
* @param isDepositLimitSetRoleHolder address of the initial IS_DEPOSIT_LIMIT_SET_ROLE holder
* @param depositLimitSetRoleHolder address of the initial DEPOSIT_LIMIT_SET_ROLE holder
*/
struct InitParams {
address collateral;
address burner;
uint48 epochDuration;
bool depositWhitelist;
bool isDepositLimit;
uint256 depositLimit;
address defaultAdminRoleHolder;
address depositWhitelistSetRoleHolder;
address depositorWhitelistRoleHolder;
address isDepositLimitSetRoleHolder;
address depositLimitSetRoleHolder;
}
/**
* @notice Hints for an active balance.
* @param activeSharesOfHint hint for the active shares of checkpoint
* @param activeStakeHint hint for the active stake checkpoint
* @param activeSharesHint hint for the active shares checkpoint
*/
struct ActiveBalanceOfHints {
bytes activeSharesOfHint;
bytes activeStakeHint;
bytes activeSharesHint;
}
/**
* @notice Emitted when a deposit is made.
* @param depositor account that made the deposit
* @param onBehalfOf account the deposit was made on behalf of
* @param amount amount of the collateral deposited
* @param shares amount of the active shares minted
*/
event Deposit(address indexed depositor, address indexed onBehalfOf, uint256 amount, uint256 shares);
/**
* @notice Emitted when a withdrawal is made.
* @param withdrawer account that made the withdrawal
* @param claimer account that needs to claim the withdrawal
* @param amount amount of the collateral withdrawn
* @param burnedShares amount of the active shares burned
* @param mintedShares amount of the epoch withdrawal shares minted
*/
event Withdraw(
address indexed withdrawer, address indexed claimer, uint256 amount, uint256 burnedShares, uint256 mintedShares
);
/**
* @notice Emitted when a claim is made.
* @param claimer account that claimed
* @param recipient account that received the collateral
* @param epoch epoch the collateral was claimed for
* @param amount amount of the collateral claimed
*/
event Claim(address indexed claimer, address indexed recipient, uint256 epoch, uint256 amount);
/**
* @notice Emitted when a batch claim is made.
* @param claimer account that claimed
* @param recipient account that received the collateral
* @param epochs epochs the collateral was claimed for
* @param amount amount of the collateral claimed
*/
event ClaimBatch(address indexed claimer, address indexed recipient, uint256[] epochs, uint256 amount);
/**
* @notice Emitted when a slash happens.
* @param amount amount of the collateral to slash
* @param captureTimestamp time point when the stake was captured
* @param slashedAmount real amount of the collateral slashed
*/
event OnSlash(uint256 amount, uint48 captureTimestamp, uint256 slashedAmount);
/**
* @notice Emitted when a deposit whitelist status is enabled/disabled.
* @param status if enabled deposit whitelist
*/
event SetDepositWhitelist(bool status);
/**
* @notice Emitted when a depositor whitelist status is set.
* @param account account for which the whitelist status is set
* @param status if whitelisted the account
*/
event SetDepositorWhitelistStatus(address indexed account, bool status);
/**
* @notice Emitted when a deposit limit status is enabled/disabled.
* @param status if enabled deposit limit
*/
event SetIsDepositLimit(bool status);
/**
* @notice Emitted when a deposit limit is set.
* @param limit deposit limit (maximum amount of the collateral that can be in the vault simultaneously)
*/
event SetDepositLimit(uint256 limit);
/**
* @notice Emitted when a delegator is set.
* @param delegator vault's delegator to delegate the stake to networks and operators
* @dev Can be set only once.
*/
event SetDelegator(address indexed delegator);
/**
* @notice Emitted when a slasher is set.
* @param slasher vault's slasher to provide a slashing mechanism to networks
* @dev Can be set only once.
*/
event SetSlasher(address indexed slasher);
/**
* @notice Check if the vault is fully initialized (a delegator and a slasher are set).
* @return if the vault is fully initialized
*/
function isInitialized() external view returns (bool);
/**
* @notice Get a total amount of the collateral that can be slashed.
* @return total amount of the slashable collateral
*/
function totalStake() external view returns (uint256);
/**
* @notice Get an active balance for a particular account at a given timestamp using hints.
* @param account account to get the active balance for
* @param timestamp time point to get the active balance for the account at
* @param hints hints for checkpoints' indexes
* @return active balance for the account at the timestamp
*/
function activeBalanceOfAt(
address account,
uint48 timestamp,
bytes calldata hints
) external view returns (uint256);
/**
* @notice Get an active balance for a particular account.
* @param account account to get the active balance for
* @return active balance for the account
*/
function activeBalanceOf(
address account
) external view returns (uint256);
/**
* @notice Get withdrawals for a particular account at a given epoch (zero if claimed).
* @param epoch epoch to get the withdrawals for the account at
* @param account account to get the withdrawals for
* @return withdrawals for the account at the epoch
*/
function withdrawalsOf(uint256 epoch, address account) external view returns (uint256);
/**
* @notice Get a total amount of the collateral that can be slashed for a given account.
* @param account account to get the slashable collateral for
* @return total amount of the account's slashable collateral
*/
function slashableBalanceOf(
address account
) external view returns (uint256);
/**
* @notice Deposit collateral into the vault.
* @param onBehalfOf account the deposit is made on behalf of
* @param amount amount of the collateral to deposit
* @return depositedAmount real amount of the collateral deposited
* @return mintedShares amount of the active shares minted
*/
function deposit(
address onBehalfOf,
uint256 amount
) external returns (uint256 depositedAmount, uint256 mintedShares);
/**
* @notice Withdraw collateral from the vault (it will be claimable after the next epoch).
* @param claimer account that needs to claim the withdrawal
* @param amount amount of the collateral to withdraw
* @return burnedShares amount of the active shares burned
* @return mintedShares amount of the epoch withdrawal shares minted
*/
function withdraw(address claimer, uint256 amount) external returns (uint256 burnedShares, uint256 mintedShares);
/**
* @notice Redeem collateral from the vault (it will be claimable after the next epoch).
* @param claimer account that needs to claim the withdrawal
* @param shares amount of the active shares to redeem
* @return withdrawnAssets amount of the collateral withdrawn
* @return mintedShares amount of the epoch withdrawal shares minted
*/
function redeem(address claimer, uint256 shares) external returns (uint256 withdrawnAssets, uint256 mintedShares);
/**
* @notice Claim collateral from the vault.
* @param recipient account that receives the collateral
* @param epoch epoch to claim the collateral for
* @return amount amount of the collateral claimed
*/
function claim(address recipient, uint256 epoch) external returns (uint256 amount);
/**
* @notice Claim collateral from the vault for multiple epochs.
* @param recipient account that receives the collateral
* @param epochs epochs to claim the collateral for
* @return amount amount of the collateral claimed
*/
function claimBatch(address recipient, uint256[] calldata epochs) external returns (uint256 amount);
/**
* @notice Slash callback for burning collateral.
* @param amount amount to slash
* @param captureTimestamp time point when the stake was captured
* @return slashedAmount real amount of the collateral slashed
* @dev Only the slasher can call this function.
*/
function onSlash(uint256 amount, uint48 captureTimestamp) external returns (uint256 slashedAmount);
/**
* @notice Enable/disable deposit whitelist.
* @param status if enabling deposit whitelist
* @dev Only a DEPOSIT_WHITELIST_SET_ROLE holder can call this function.
*/
function setDepositWhitelist(
bool status
) external;
/**
* @notice Set a depositor whitelist status.
* @param account account for which the whitelist status is set
* @param status if whitelisting the account
* @dev Only a DEPOSITOR_WHITELIST_ROLE holder can call this function.
*/
function setDepositorWhitelistStatus(address account, bool status) external;
/**
* @notice Enable/disable deposit limit.
* @param status if enabling deposit limit
* @dev Only a IS_DEPOSIT_LIMIT_SET_ROLE holder can call this function.
*/
function setIsDepositLimit(
bool status
) external;
/**
* @notice Set a deposit limit.
* @param limit deposit limit (maximum amount of the collateral that can be in the vault simultaneously)
* @dev Only a DEPOSIT_LIMIT_SET_ROLE holder can call this function.
*/
function setDepositLimit(
uint256 limit
) external;
/**
* @notice Set a delegator.
* @param delegator vault's delegator to delegate the stake to networks and operators
* @dev Can be set only once.
*/
function setDelegator(
address delegator
) external;
/**
* @notice Set a slasher.
* @param slasher vault's slasher to provide a slashing mechanism to networks
* @dev Can be set only once.
*/
function setSlasher(
address slasher
) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IMigratableEntity {
error AlreadyInitialized();
error NotFactory();
error NotInitialized();
/**
* @notice Get the factory's address.
* @return address of the factory
*/
function FACTORY() external view returns (address);
/**
* @notice Get the entity's version.
* @return version of the entity
* @dev Starts from 1.
*/
function version() external view returns (uint64);
/**
* @notice Initialize this entity contract by using a given data and setting a particular version and owner.
* @param initialVersion initial version of the entity
* @param owner initial owner of the entity
* @param data some data to use
*/
function initialize(uint64 initialVersion, address owner, bytes calldata data) external;
/**
* @notice Migrate this entity to a particular newer version using a given data.
* @param newVersion new version of the entity
* @param data some data to use
*/
function migrate(uint64 newVersion, bytes calldata data) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IVaultStorage {
error InvalidTimestamp();
error NoPreviousEpoch();
/**
* @notice Get a deposit whitelist enabler/disabler's role.
* @return identifier of the whitelist enabler/disabler role
*/
function DEPOSIT_WHITELIST_SET_ROLE() external view returns (bytes32);
/**
* @notice Get a depositor whitelist status setter's role.
* @return identifier of the depositor whitelist status setter role
*/
function DEPOSITOR_WHITELIST_ROLE() external view returns (bytes32);
/**
* @notice Get a deposit limit enabler/disabler's role.
* @return identifier of the deposit limit enabler/disabler role
*/
function IS_DEPOSIT_LIMIT_SET_ROLE() external view returns (bytes32);
/**
* @notice Get a deposit limit setter's role.
* @return identifier of the deposit limit setter role
*/
function DEPOSIT_LIMIT_SET_ROLE() external view returns (bytes32);
/**
* @notice Get the delegator factory's address.
* @return address of the delegator factory
*/
function DELEGATOR_FACTORY() external view returns (address);
/**
* @notice Get the slasher factory's address.
* @return address of the slasher factory
*/
function SLASHER_FACTORY() external view returns (address);
/**
* @notice Get a vault collateral.
* @return address of the underlying collateral
*/
function collateral() external view returns (address);
/**
* @notice Get a burner to issue debt to (e.g., 0xdEaD or some unwrapper contract).
* @return address of the burner
*/
function burner() external view returns (address);
/**
* @notice Get a delegator (it delegates the vault's stake to networks and operators).
* @return address of the delegator
*/
function delegator() external view returns (address);
/**
* @notice Get if the delegator is initialized.
* @return if the delegator is initialized
*/
function isDelegatorInitialized() external view returns (bool);
/**
* @notice Get a slasher (it provides networks a slashing mechanism).
* @return address of the slasher
*/
function slasher() external view returns (address);
/**
* @notice Get if the slasher is initialized.
* @return if the slasher is initialized
*/
function isSlasherInitialized() external view returns (bool);
/**
* @notice Get a time point of the epoch duration set.
* @return time point of the epoch duration set
*/
function epochDurationInit() external view returns (uint48);
/**
* @notice Get a duration of the vault epoch.
* @return duration of the epoch
*/
function epochDuration() external view returns (uint48);
/**
* @notice Get an epoch at a given timestamp.
* @param timestamp time point to get the epoch at
* @return epoch at the timestamp
* @dev Reverts if the timestamp is less than the start of the epoch 0.
*/
function epochAt(
uint48 timestamp
) external view returns (uint256);
/**
* @notice Get a current vault epoch.
* @return current epoch
*/
function currentEpoch() external view returns (uint256);
/**
* @notice Get a start of the current vault epoch.
* @return start of the current epoch
*/
function currentEpochStart() external view returns (uint48);
/**
* @notice Get a start of the previous vault epoch.
* @return start of the previous epoch
* @dev Reverts if the current epoch is 0.
*/
function previousEpochStart() external view returns (uint48);
/**
* @notice Get a start of the next vault epoch.
* @return start of the next epoch
*/
function nextEpochStart() external view returns (uint48);
/**
* @notice Get if the deposit whitelist is enabled.
* @return if the deposit whitelist is enabled
*/
function depositWhitelist() external view returns (bool);
/**
* @notice Get if a given account is whitelisted as a depositor.
* @param account address to check
* @return if the account is whitelisted as a depositor
*/
function isDepositorWhitelisted(
address account
) external view returns (bool);
/**
* @notice Get if the deposit limit is set.
* @return if the deposit limit is set
*/
function isDepositLimit() external view returns (bool);
/**
* @notice Get a deposit limit (maximum amount of the active stake that can be in the vault simultaneously).
* @return deposit limit
*/
function depositLimit() external view returns (uint256);
/**
* @notice Get a total number of active shares in the vault at a given timestamp using a hint.
* @param timestamp time point to get the total number of active shares at
* @param hint hint for the checkpoint index
* @return total number of active shares at the timestamp
*/
function activeSharesAt(uint48 timestamp, bytes memory hint) external view returns (uint256);
/**
* @notice Get a total number of active shares in the vault.
* @return total number of active shares
*/
function activeShares() external view returns (uint256);
/**
* @notice Get a total amount of active stake in the vault at a given timestamp using a hint.
* @param timestamp time point to get the total active stake at
* @param hint hint for the checkpoint index
* @return total amount of active stake at the timestamp
*/
function activeStakeAt(uint48 timestamp, bytes memory hint) external view returns (uint256);
/**
* @notice Get a total amount of active stake in the vault.
* @return total amount of active stake
*/
function activeStake() external view returns (uint256);
/**
* @notice Get a total number of active shares for a particular account at a given timestamp using a hint.
* @param account account to get the number of active shares for
* @param timestamp time point to get the number of active shares for the account at
* @param hint hint for the checkpoint index
* @return number of active shares for the account at the timestamp
*/
function activeSharesOfAt(address account, uint48 timestamp, bytes memory hint) external view returns (uint256);
/**
* @notice Get a number of active shares for a particular account.
* @param account account to get the number of active shares for
* @return number of active shares for the account
*/
function activeSharesOf(
address account
) external view returns (uint256);
/**
* @notice Get a total amount of the withdrawals at a given epoch.
* @param epoch epoch to get the total amount of the withdrawals at
* @return total amount of the withdrawals at the epoch
*/
function withdrawals(
uint256 epoch
) external view returns (uint256);
/**
* @notice Get a total number of withdrawal shares at a given epoch.
* @param epoch epoch to get the total number of withdrawal shares at
* @return total number of withdrawal shares at the epoch
*/
function withdrawalShares(
uint256 epoch
) external view returns (uint256);
/**
* @notice Get a number of withdrawal shares for a particular account at a given epoch (zero if claimed).
* @param epoch epoch to get the number of withdrawal shares for the account at
* @param account account to get the number of withdrawal shares for
* @return number of withdrawal shares for the account at the epoch
*/
function withdrawalSharesOf(uint256 epoch, address account) external view returns (uint256);
/**
* @notice Get if the withdrawals are claimed for a particular account at a given epoch.
* @param epoch epoch to check the withdrawals for the account at
* @param account account to check the withdrawals for
* @return if the withdrawals are claimed for the account at the epoch
*/
function isWithdrawalsClaimed(uint256 epoch, address account) external view returns (bool);
}{
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"core/=lib/core/",
"ds-test/=lib/openzeppelin-contracts-upgradeable/lib/forge-std/lib/ds-test/src/",
"erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
"openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
"openzeppelin-contracts/=lib/openzeppelin-contracts/"
],
"optimizer": {
"enabled": true,
"runs": 200
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
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}
},
"evmVersion": "cancun",
"viaIR": true,
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"contract IVaultTokenized","name":"_vault","type":"address"},{"internalType":"contract IStakerRewards","name":"_rewards","type":"address"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC20InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC20InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC20InvalidSender","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"}],"name":"ERC20InvalidSpender","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"assets","type":"uint256"},{"internalType":"uint256","name":"max","type":"uint256"}],"name":"ERC4626ExceededMaxDeposit","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"uint256","name":"max","type":"uint256"}],"name":"ERC4626ExceededMaxMint","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"uint256","name":"max","type":"uint256"}],"name":"ERC4626ExceededMaxRedeem","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"assets","type":"uint256"},{"internalType":"uint256","name":"max","type":"uint256"}],"name":"ERC4626ExceededMaxWithdraw","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"MathOverflowedMulDiv","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","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":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"Compound","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"assets","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"Deposit","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":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"assets","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"Withdraw","type":"event"},{"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":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"asset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","n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IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalAssets","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":"value","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":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"contract IVaultTokenized","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _vault (address): 0xE1F23869776c82f691d9Cb34597Ab1830Fb0De58
Arg [1] : _rewards (address): 0x84852EB9acbE1869372f83ED853B185F6c2848Dc
Arg [2] : name (string): Staked HYPER
Arg [3] : symbol (string): stHYPER
-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 000000000000000000000000e1f23869776c82f691d9cb34597ab1830fb0de58
Arg [1] : 00000000000000000000000084852eb9acbe1869372f83ed853b185f6c2848dc
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [5] : 5374616b65642048595045520000000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [7] : 7374485950455200000000000000000000000000000000000000000000000000
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Multichain Portfolio | 34 Chains
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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.