Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
import "./IAccessControlUpgradeable.sol";
import "../utils/ContextUpgradeable.sol";
import "../utils/StringsUpgradeable.sol";
import "../utils/introspection/ERC165Upgradeable.sol";
import "../proxy/utils/Initializable.sol";
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```
* bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
* ```
*
* Roles can be used to represent a set of permissions. To restrict access to a
* function call, use {hasRole}:
*
* ```
* function foo() public {
* require(hasRole(MY_ROLE, msg.sender));
* ...
* }
* ```
*
* Roles can be granted and revoked dynamically via the {grantRole} and
* {revokeRole} functions. Each role has an associated admin role, and only
* accounts that have a role's admin role can call {grantRole} and {revokeRole}.
*
* By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
* that only accounts with this role will be able to grant or revoke other
* roles. More complex role relationships can be created by using
* {_setRoleAdmin}.
*
* WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
* grant and revoke this role. Extra precautions should be taken to secure
* accounts that have been granted it.
*/
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {
function __AccessControl_init() internal onlyInitializing {
}
function __AccessControl_init_unchained() internal onlyInitializing {
}
struct RoleData {
mapping(address => bool) members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with a standardized message including the required role.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `_msgSender()` is missing `role`.
* Overriding this function changes the behavior of the {onlyRole} modifier.
*
* Format of the revert message is described in {_checkRole}.
*
* _Available since v4.6._
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert(
string(
abi.encodePacked(
"AccessControl: account ",
StringsUpgradeable.toHexString(account),
" is missing role ",
StringsUpgradeable.toHexString(uint256(role), 32)
)
)
);
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
return _roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleGranted} event.
*/
function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleRevoked} event.
*/
function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*
* May emit a {RoleRevoked} event.
*/
function renounceRole(bytes32 role, address account) public virtual override {
require(account == _msgSender(), "AccessControl: can only renounce roles for self");
_revokeRole(role, account);
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event. Note that unlike {grantRole}, this function doesn't perform any
* checks on the calling account.
*
* May emit a {RoleGranted} event.
*
* [WARNING]
* ====
* This function should only be called from the constructor when setting
* up the initial roles for the system.
*
* Using this function in any other way is effectively circumventing the admin
* system imposed by {AccessControl}.
* ====
*
* NOTE: This function is deprecated in favor of {_grantRole}.
*/
function _setupRole(bytes32 role, address account) internal virtual {
_grantRole(role, account);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
bytes32 previousAdminRole = getRoleAdmin(role);
_roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Grants `role` to `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleGranted} event.
*/
function _grantRole(bytes32 role, address account) internal virtual {
if (!hasRole(role, account)) {
_roles[role].members[account] = true;
emit RoleGranted(role, account, _msgSender());
}
}
/**
* @dev Revokes `role` from `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleRevoked} event.
*/
function _revokeRole(bytes32 role, address account) internal virtual {
if (hasRole(role, account)) {
_roles[role].members[account] = false;
emit RoleRevoked(role, account, _msgSender());
}
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
pragma solidity ^0.8.0;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControlUpgradeable {
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*
* _Available since v3.1._
*/
event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol)
pragma solidity ^0.8.0;
import "../token/ERC20/IERC20Upgradeable.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20Upgradeable {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUpgradeable {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @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 up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (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; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1);
///////////////////////////////////////////////
// 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.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
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 (rounding == Rounding.Up && 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 down.
*
* 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 + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* 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 + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* 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 + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* 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 10, 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 + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/MathUpgradeable.sol";
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = MathUpgradeable.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, MathUpgradeable.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.
pragma solidity ^0.8.0;
/**
* @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
* checks.
*
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
* easily result in undesired exploitation or bugs, since developers usually
* assume that overflows raise errors. `SafeCast` restores this intuition by
* reverting the transaction when such an operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*
* Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
* all math on `uint256` and `int256` and then downcasting.
*/
library SafeCast {
/**
* @dev Returns the downcasted uint248 from uint256, reverting on
* overflow (when the input is greater than largest uint248).
*
* Counterpart to Solidity's `uint248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*
* _Available since v4.7._
*/
function toUint248(uint256 value) internal pure returns (uint248) {
require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits");
return uint248(value);
}
/**
* @dev Returns the downcasted uint240 from uint256, reverting on
* overflow (when the input is greater than largest uint240).
*
* Counterpart to Solidity's `uint240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*
* _Available since v4.7._
*/
function toUint240(uint256 value) internal pure returns (uint240) {
require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits");
return uint240(value);
}
/**
* @dev Returns the downcasted uint232 from uint256, reverting on
* overflow (when the input is greater than largest uint232).
*
* Counterpart to Solidity's `uint232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*
* _Available since v4.7._
*/
function toUint232(uint256 value) internal pure returns (uint232) {
require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits");
return uint232(value);
}
/**
* @dev Returns the downcasted uint224 from uint256, reverting on
* overflow (when the input is greater than largest uint224).
*
* Counterpart to Solidity's `uint224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*
* _Available since v4.2._
*/
function toUint224(uint256 value) internal pure returns (uint224) {
require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
return uint224(value);
}
/**
* @dev Returns the downcasted uint216 from uint256, reverting on
* overflow (when the input is greater than largest uint216).
*
* Counterpart to Solidity's `uint216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*
* _Available since v4.7._
*/
function toUint216(uint256 value) internal pure returns (uint216) {
require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits");
return uint216(value);
}
/**
* @dev Returns the downcasted uint208 from uint256, reverting on
* overflow (when the input is greater than largest uint208).
*
* Counterpart to Solidity's `uint208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*
* _Available since v4.7._
*/
function toUint208(uint256 value) internal pure returns (uint208) {
require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits");
return uint208(value);
}
/**
* @dev Returns the downcasted uint200 from uint256, reverting on
* overflow (when the input is greater than largest uint200).
*
* Counterpart to Solidity's `uint200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*
* _Available since v4.7._
*/
function toUint200(uint256 value) internal pure returns (uint200) {
require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits");
return uint200(value);
}
/**
* @dev Returns the downcasted uint192 from uint256, reverting on
* overflow (when the input is greater than largest uint192).
*
* Counterpart to Solidity's `uint192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*
* _Available since v4.7._
*/
function toUint192(uint256 value) internal pure returns (uint192) {
require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits");
return uint192(value);
}
/**
* @dev Returns the downcasted uint184 from uint256, reverting on
* overflow (when the input is greater than largest uint184).
*
* Counterpart to Solidity's `uint184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*
* _Available since v4.7._
*/
function toUint184(uint256 value) internal pure returns (uint184) {
require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
return uint184(value);
}
/**
* @dev Returns the downcasted uint176 from uint256, reverting on
* overflow (when the input is greater than largest uint176).
*
* Counterpart to Solidity's `uint176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*
* _Available since v4.7._
*/
function toUint176(uint256 value) internal pure returns (uint176) {
require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits");
return uint176(value);
}
/**
* @dev Returns the downcasted uint168 from uint256, reverting on
* overflow (when the input is greater than largest uint168).
*
* Counterpart to Solidity's `uint168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*
* _Available since v4.7._
*/
function toUint168(uint256 value) internal pure returns (uint168) {
require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits");
return uint168(value);
}
/**
* @dev Returns the downcasted uint160 from uint256, reverting on
* overflow (when the input is greater than largest uint160).
*
* Counterpart to Solidity's `uint160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*
* _Available since v4.7._
*/
function toUint160(uint256 value) internal pure returns (uint160) {
require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits");
return uint160(value);
}
/**
* @dev Returns the downcasted uint152 from uint256, reverting on
* overflow (when the input is greater than largest uint152).
*
* Counterpart to Solidity's `uint152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*
* _Available since v4.7._
*/
function toUint152(uint256 value) internal pure returns (uint152) {
require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits");
return uint152(value);
}
/**
* @dev Returns the downcasted uint144 from uint256, reverting on
* overflow (when the input is greater than largest uint144).
*
* Counterpart to Solidity's `uint144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*
* _Available since v4.7._
*/
function toUint144(uint256 value) internal pure returns (uint144) {
require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits");
return uint144(value);
}
/**
* @dev Returns the downcasted uint136 from uint256, reverting on
* overflow (when the input is greater than largest uint136).
*
* Counterpart to Solidity's `uint136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*
* _Available since v4.7._
*/
function toUint136(uint256 value) internal pure returns (uint136) {
require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits");
return uint136(value);
}
/**
* @dev Returns the downcasted uint128 from uint256, reverting on
* overflow (when the input is greater than largest uint128).
*
* Counterpart to Solidity's `uint128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*
* _Available since v2.5._
*/
function toUint128(uint256 value) internal pure returns (uint128) {
require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
return uint128(value);
}
/**
* @dev Returns the downcasted uint120 from uint256, reverting on
* overflow (when the input is greater than largest uint120).
*
* Counterpart to Solidity's `uint120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*
* _Available since v4.7._
*/
function toUint120(uint256 value) internal pure returns (uint120) {
require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits");
return uint120(value);
}
/**
* @dev Returns the downcasted uint112 from uint256, reverting on
* overflow (when the input is greater than largest uint112).
*
* Counterpart to Solidity's `uint112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*
* _Available since v4.7._
*/
function toUint112(uint256 value) internal pure returns (uint112) {
require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits");
return uint112(value);
}
/**
* @dev Returns the downcasted uint104 from uint256, reverting on
* overflow (when the input is greater than largest uint104).
*
* Counterpart to Solidity's `uint104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*
* _Available since v4.7._
*/
function toUint104(uint256 value) internal pure returns (uint104) {
require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits");
return uint104(value);
}
/**
* @dev Returns the downcasted uint96 from uint256, reverting on
* overflow (when the input is greater than largest uint96).
*
* Counterpart to Solidity's `uint96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*
* _Available since v4.2._
*/
function toUint96(uint256 value) internal pure returns (uint96) {
require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
return uint96(value);
}
/**
* @dev Returns the downcasted uint88 from uint256, reverting on
* overflow (when the input is greater than largest uint88).
*
* Counterpart to Solidity's `uint88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*
* _Available since v4.7._
*/
function toUint88(uint256 value) internal pure returns (uint88) {
require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits");
return uint88(value);
}
/**
* @dev Returns the downcasted uint80 from uint256, reverting on
* overflow (when the input is greater than largest uint80).
*
* Counterpart to Solidity's `uint80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*
* _Available since v4.7._
*/
function toUint80(uint256 value) internal pure returns (uint80) {
require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits");
return uint80(value);
}
/**
* @dev Returns the downcasted uint72 from uint256, reverting on
* overflow (when the input is greater than largest uint72).
*
* Counterpart to Solidity's `uint72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*
* _Available since v4.7._
*/
function toUint72(uint256 value) internal pure returns (uint72) {
require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits");
return uint72(value);
}
/**
* @dev Returns the downcasted uint64 from uint256, reverting on
* overflow (when the input is greater than largest uint64).
*
* Counterpart to Solidity's `uint64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*
* _Available since v2.5._
*/
function toUint64(uint256 value) internal pure returns (uint64) {
require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
return uint64(value);
}
/**
* @dev Returns the downcasted uint56 from uint256, reverting on
* overflow (when the input is greater than largest uint56).
*
* Counterpart to Solidity's `uint56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*
* _Available since v4.7._
*/
function toUint56(uint256 value) internal pure returns (uint56) {
require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits");
return uint56(value);
}
/**
* @dev Returns the downcasted uint48 from uint256, reverting on
* overflow (when the input is greater than largest uint48).
*
* Counterpart to Solidity's `uint48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*
* _Available since v4.7._
*/
function toUint48(uint256 value) internal pure returns (uint48) {
require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
return uint48(value);
}
/**
* @dev Returns the downcasted uint40 from uint256, reverting on
* overflow (when the input is greater than largest uint40).
*
* Counterpart to Solidity's `uint40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*
* _Available since v4.7._
*/
function toUint40(uint256 value) internal pure returns (uint40) {
require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits");
return uint40(value);
}
/**
* @dev Returns the downcasted uint32 from uint256, reverting on
* overflow (when the input is greater than largest uint32).
*
* Counterpart to Solidity's `uint32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*
* _Available since v2.5._
*/
function toUint32(uint256 value) internal pure returns (uint32) {
require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
return uint32(value);
}
/**
* @dev Returns the downcasted uint24 from uint256, reverting on
* overflow (when the input is greater than largest uint24).
*
* Counterpart to Solidity's `uint24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*
* _Available since v4.7._
*/
function toUint24(uint256 value) internal pure returns (uint24) {
require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits");
return uint24(value);
}
/**
* @dev Returns the downcasted uint16 from uint256, reverting on
* overflow (when the input is greater than largest uint16).
*
* Counterpart to Solidity's `uint16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*
* _Available since v2.5._
*/
function toUint16(uint256 value) internal pure returns (uint16) {
require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
return uint16(value);
}
/**
* @dev Returns the downcasted uint8 from uint256, reverting on
* overflow (when the input is greater than largest uint8).
*
* Counterpart to Solidity's `uint8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*
* _Available since v2.5._
*/
function toUint8(uint256 value) internal pure returns (uint8) {
require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
return uint8(value);
}
/**
* @dev Converts a signed int256 into an unsigned uint256.
*
* Requirements:
*
* - input must be greater than or equal to 0.
*
* _Available since v3.0._
*/
function toUint256(int256 value) internal pure returns (uint256) {
require(value >= 0, "SafeCast: value must be positive");
return uint256(value);
}
/**
* @dev Returns the downcasted int248 from int256, reverting on
* overflow (when the input is less than smallest int248 or
* greater than largest int248).
*
* Counterpart to Solidity's `int248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*
* _Available since v4.7._
*/
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
require(downcasted == value, "SafeCast: value doesn't fit in 248 bits");
}
/**
* @dev Returns the downcasted int240 from int256, reverting on
* overflow (when the input is less than smallest int240 or
* greater than largest int240).
*
* Counterpart to Solidity's `int240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*
* _Available since v4.7._
*/
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
require(downcasted == value, "SafeCast: value doesn't fit in 240 bits");
}
/**
* @dev Returns the downcasted int232 from int256, reverting on
* overflow (when the input is less than smallest int232 or
* greater than largest int232).
*
* Counterpart to Solidity's `int232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*
* _Available since v4.7._
*/
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
require(downcasted == value, "SafeCast: value doesn't fit in 232 bits");
}
/**
* @dev Returns the downcasted int224 from int256, reverting on
* overflow (when the input is less than smallest int224 or
* greater than largest int224).
*
* Counterpart to Solidity's `int224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*
* _Available since v4.7._
*/
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
require(downcasted == value, "SafeCast: value doesn't fit in 224 bits");
}
/**
* @dev Returns the downcasted int216 from int256, reverting on
* overflow (when the input is less than smallest int216 or
* greater than largest int216).
*
* Counterpart to Solidity's `int216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*
* _Available since v4.7._
*/
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
require(downcasted == value, "SafeCast: value doesn't fit in 216 bits");
}
/**
* @dev Returns the downcasted int208 from int256, reverting on
* overflow (when the input is less than smallest int208 or
* greater than largest int208).
*
* Counterpart to Solidity's `int208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*
* _Available since v4.7._
*/
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
require(downcasted == value, "SafeCast: value doesn't fit in 208 bits");
}
/**
* @dev Returns the downcasted int200 from int256, reverting on
* overflow (when the input is less than smallest int200 or
* greater than largest int200).
*
* Counterpart to Solidity's `int200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*
* _Available since v4.7._
*/
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
require(downcasted == value, "SafeCast: value doesn't fit in 200 bits");
}
/**
* @dev Returns the downcasted int192 from int256, reverting on
* overflow (when the input is less than smallest int192 or
* greater than largest int192).
*
* Counterpart to Solidity's `int192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*
* _Available since v4.7._
*/
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
require(downcasted == value, "SafeCast: value doesn't fit in 192 bits");
}
/**
* @dev Returns the downcasted int184 from int256, reverting on
* overflow (when the input is less than smallest int184 or
* greater than largest int184).
*
* Counterpart to Solidity's `int184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*
* _Available since v4.7._
*/
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
require(downcasted == value, "SafeCast: value doesn't fit in 184 bits");
}
/**
* @dev Returns the downcasted int176 from int256, reverting on
* overflow (when the input is less than smallest int176 or
* greater than largest int176).
*
* Counterpart to Solidity's `int176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*
* _Available since v4.7._
*/
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
require(downcasted == value, "SafeCast: value doesn't fit in 176 bits");
}
/**
* @dev Returns the downcasted int168 from int256, reverting on
* overflow (when the input is less than smallest int168 or
* greater than largest int168).
*
* Counterpart to Solidity's `int168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*
* _Available since v4.7._
*/
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
require(downcasted == value, "SafeCast: value doesn't fit in 168 bits");
}
/**
* @dev Returns the downcasted int160 from int256, reverting on
* overflow (when the input is less than smallest int160 or
* greater than largest int160).
*
* Counterpart to Solidity's `int160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*
* _Available since v4.7._
*/
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
require(downcasted == value, "SafeCast: value doesn't fit in 160 bits");
}
/**
* @dev Returns the downcasted int152 from int256, reverting on
* overflow (when the input is less than smallest int152 or
* greater than largest int152).
*
* Counterpart to Solidity's `int152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*
* _Available since v4.7._
*/
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
require(downcasted == value, "SafeCast: value doesn't fit in 152 bits");
}
/**
* @dev Returns the downcasted int144 from int256, reverting on
* overflow (when the input is less than smallest int144 or
* greater than largest int144).
*
* Counterpart to Solidity's `int144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*
* _Available since v4.7._
*/
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
require(downcasted == value, "SafeCast: value doesn't fit in 144 bits");
}
/**
* @dev Returns the downcasted int136 from int256, reverting on
* overflow (when the input is less than smallest int136 or
* greater than largest int136).
*
* Counterpart to Solidity's `int136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*
* _Available since v4.7._
*/
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
require(downcasted == value, "SafeCast: value doesn't fit in 136 bits");
}
/**
* @dev Returns the downcasted int128 from int256, reverting on
* overflow (when the input is less than smallest int128 or
* greater than largest int128).
*
* Counterpart to Solidity's `int128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*
* _Available since v3.1._
*/
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
require(downcasted == value, "SafeCast: value doesn't fit in 128 bits");
}
/**
* @dev Returns the downcasted int120 from int256, reverting on
* overflow (when the input is less than smallest int120 or
* greater than largest int120).
*
* Counterpart to Solidity's `int120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*
* _Available since v4.7._
*/
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
require(downcasted == value, "SafeCast: value doesn't fit in 120 bits");
}
/**
* @dev Returns the downcasted int112 from int256, reverting on
* overflow (when the input is less than smallest int112 or
* greater than largest int112).
*
* Counterpart to Solidity's `int112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*
* _Available since v4.7._
*/
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
require(downcasted == value, "SafeCast: value doesn't fit in 112 bits");
}
/**
* @dev Returns the downcasted int104 from int256, reverting on
* overflow (when the input is less than smallest int104 or
* greater than largest int104).
*
* Counterpart to Solidity's `int104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*
* _Available since v4.7._
*/
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
require(downcasted == value, "SafeCast: value doesn't fit in 104 bits");
}
/**
* @dev Returns the downcasted int96 from int256, reverting on
* overflow (when the input is less than smallest int96 or
* greater than largest int96).
*
* Counterpart to Solidity's `int96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*
* _Available since v4.7._
*/
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
require(downcasted == value, "SafeCast: value doesn't fit in 96 bits");
}
/**
* @dev Returns the downcasted int88 from int256, reverting on
* overflow (when the input is less than smallest int88 or
* greater than largest int88).
*
* Counterpart to Solidity's `int88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*
* _Available since v4.7._
*/
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
require(downcasted == value, "SafeCast: value doesn't fit in 88 bits");
}
/**
* @dev Returns the downcasted int80 from int256, reverting on
* overflow (when the input is less than smallest int80 or
* greater than largest int80).
*
* Counterpart to Solidity's `int80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*
* _Available since v4.7._
*/
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
require(downcasted == value, "SafeCast: value doesn't fit in 80 bits");
}
/**
* @dev Returns the downcasted int72 from int256, reverting on
* overflow (when the input is less than smallest int72 or
* greater than largest int72).
*
* Counterpart to Solidity's `int72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*
* _Available since v4.7._
*/
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
require(downcasted == value, "SafeCast: value doesn't fit in 72 bits");
}
/**
* @dev Returns the downcasted int64 from int256, reverting on
* overflow (when the input is less than smallest int64 or
* greater than largest int64).
*
* Counterpart to Solidity's `int64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*
* _Available since v3.1._
*/
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
require(downcasted == value, "SafeCast: value doesn't fit in 64 bits");
}
/**
* @dev Returns the downcasted int56 from int256, reverting on
* overflow (when the input is less than smallest int56 or
* greater than largest int56).
*
* Counterpart to Solidity's `int56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*
* _Available since v4.7._
*/
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
require(downcasted == value, "SafeCast: value doesn't fit in 56 bits");
}
/**
* @dev Returns the downcasted int48 from int256, reverting on
* overflow (when the input is less than smallest int48 or
* greater than largest int48).
*
* Counterpart to Solidity's `int48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*
* _Available since v4.7._
*/
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
require(downcasted == value, "SafeCast: value doesn't fit in 48 bits");
}
/**
* @dev Returns the downcasted int40 from int256, reverting on
* overflow (when the input is less than smallest int40 or
* greater than largest int40).
*
* Counterpart to Solidity's `int40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*
* _Available since v4.7._
*/
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
require(downcasted == value, "SafeCast: value doesn't fit in 40 bits");
}
/**
* @dev Returns the downcasted int32 from int256, reverting on
* overflow (when the input is less than smallest int32 or
* greater than largest int32).
*
* Counterpart to Solidity's `int32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*
* _Available since v3.1._
*/
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
require(downcasted == value, "SafeCast: value doesn't fit in 32 bits");
}
/**
* @dev Returns the downcasted int24 from int256, reverting on
* overflow (when the input is less than smallest int24 or
* greater than largest int24).
*
* Counterpart to Solidity's `int24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*
* _Available since v4.7._
*/
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
require(downcasted == value, "SafeCast: value doesn't fit in 24 bits");
}
/**
* @dev Returns the downcasted int16 from int256, reverting on
* overflow (when the input is less than smallest int16 or
* greater than largest int16).
*
* Counterpart to Solidity's `int16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*
* _Available since v3.1._
*/
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
require(downcasted == value, "SafeCast: value doesn't fit in 16 bits");
}
/**
* @dev Returns the downcasted int8 from int256, reverting on
* overflow (when the input is less than smallest int8 or
* greater than largest int8).
*
* Counterpart to Solidity's `int8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*
* _Available since v3.1._
*/
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
require(downcasted == value, "SafeCast: value doesn't fit in 8 bits");
}
/**
* @dev Converts an unsigned uint256 into a signed int256.
*
* Requirements:
*
* - input must be less than or equal to maxInt256.
*
* _Available since v3.0._
*/
function toInt256(uint256 value) internal pure returns (int256) {
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
return int256(value);
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import "./LibDiamond.sol";
import {DiamondCutAndLoupeFacet} from "./DiamondCutAndLoupeFacet.sol";
import {IERC173} from "./IERC173.sol";
import {IERC165} from "@openzeppelin/contracts/interfaces/IERC165.sol";
import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC20Upgradeable.sol";
import {WithReward} from "./WithReward.sol";
import {MethodsExposureFacet} from "./MethodsExposureFacet.sol";
import "./ISwapFactoryV2.sol";
import "./ISwapRouterV2.sol";
contract Diamond {
// When no function exists for function called
error FunctionNotFound(string msg_);
constructor(
address liquidityWallet,
address defaultRouter,
address defaultPair,
address diamondCutAndLoupeFacetAddress,
address methodsExposureFacetAddress
) payable {
LibDiamond.setContractOwner(msg.sender);
LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage();
LibDiamond.RewardStorage storage rs = LibDiamond.rewardStorage();
ds.fee.liquidityBuyFee = 0;
ds.fee.rewardBuyFee = 200;
ds.fee.liquiditySellFee = 0;
ds.fee.rewardSellFee = 200;
ds.feeExt.treasury = 0xc4e32e2f197b95F65C4D7B10e729D4de871E9d07;
ds.feeExt.dev = 0x559c803c2a6eF718BDbC37ffe4701cE954727c97;
ds.feeExt.treasuryBuyFee = 600;
ds.feeExt.devBuyFee = 200;
ds.feeExt.treasurySellFee = 600;
ds.feeExt.devSellFee = 200;
ds.numTokensToSwap = 1_000_000 * 10 ** 18;
ds.maxTokenPerWallet = 1_000_000 * 10 ** 18; // Max holding limit, 1% of supply
ds.defaultRouter = defaultRouter;
ds.swapRouters[defaultRouter] = true;
ds.processingGas = 750_000;
ds.processingFees = false;
rs.minRewardBalance = 1000 * 10 ** 18;
rs.claimTimeout = 3600;
ds.liquidityWallet = liquidityWallet;
ds.methodsExposureFacetAddress = methodsExposureFacetAddress;
rs.goHam.token = address(this); // hamachi
rs.goHam.router = defaultRouter; // sushi
rs.goHam.path = [defaultPair, address(this)];
ds.supportedInterfaces[type(IDiamondCut).interfaceId] = true;
ds.supportedInterfaces[type(IDiamondLoupe).interfaceId] = true;
ds.supportedInterfaces[type(IERC173).interfaceId] = true;
ds.supportedInterfaces[type(IERC165).interfaceId] = true;
ds.supportedInterfaces[type(IERC20Upgradeable).interfaceId] = true;
bytes4[] memory selectors = new bytes4[](6);
selectors[0] = DiamondCutAndLoupeFacet.diamondCut.selector;
selectors[1] = DiamondCutAndLoupeFacet.facets.selector;
selectors[2] = DiamondCutAndLoupeFacet.facetFunctionSelectors.selector;
selectors[3] = DiamondCutAndLoupeFacet.facetAddresses.selector;
selectors[4] = DiamondCutAndLoupeFacet.facetAddress.selector;
selectors[5] = DiamondCutAndLoupeFacet.supportsInterface.selector;
LibDiamond.addFunctions(diamondCutAndLoupeFacetAddress, selectors);
ISwapRouterV2 router = ISwapRouterV2(defaultRouter);
address swapPair = ISwapFactoryV2(router.factory()).createPair(
address(this),
defaultPair
);
ds.lpPools[swapPair] = true;
}
function implementation() public view returns (address) {
LibDiamond.DiamondStorage storage _ds = LibDiamond.diamondStorage();
return _ds.methodsExposureFacetAddress;
}
// =========== Lifecycle ===========
// Find facet for function that is called and execute the
// function if a facet is found and return any value.
// To learn more about this implementation read EIP 2535
fallback() external payable {
address facet = LibDiamond
.diamondStorage()
.selectorToFacetAndPosition[msg.sig]
.facetAddress;
if (facet == address(0))
revert FunctionNotFound("Diamond: Function does not exist");
assembly {
calldatacopy(0, 0, calldatasize())
let result := delegatecall(gas(), facet, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
switch result
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
receive() external payable {}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/
import "./LibDiamond.sol";
import {IERC165} from "@openzeppelin/contracts/interfaces/IERC165.sol";
contract DiamondCutAndLoupeFacet is IDiamondCut, IDiamondLoupe, IERC165 {
/// @notice Add/replace/remove any number of functions and optionally execute
/// a function with delegatecall
/// @param _diamondCut Contains the facet addresses and function selectors
/// @param _init The address of the contract or facet to execute _calldata
/// @param _calldata A function call, including function selector and arguments
/// _calldata is executed with delegatecall on _init
function diamondCut(
IDiamondCut.FacetCut[] calldata _diamondCut,
address _init,
bytes calldata _calldata
) external {
LibDiamond.enforceIsContractOwner();
LibDiamond.diamondCut(_diamondCut, _init, _calldata);
}
/// These functions are expected to be called frequently by tools.
/// @notice Gets all facets and their selectors.
/// @return facets_ Facet
function facets() external override view returns (Facet[] memory facets_) {
LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage();
uint256 numFacets = ds.facetAddresses.length;
facets_ = new Facet[](numFacets);
for (uint256 i; i < numFacets; i++) {
address facetAddress_ = ds.facetAddresses[i];
facets_[i].facetAddress = facetAddress_;
facets_[i].functionSelectors = ds.facetFunctionSelectors[facetAddress_].functionSelectors;
}
}
/// @notice Gets all the function selectors provided by a facet.
/// @param _facet The facet address.
/// @return facetFunctionSelectors_
function facetFunctionSelectors(address _facet) external override view returns (bytes4[] memory facetFunctionSelectors_) {
LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage();
facetFunctionSelectors_ = ds.facetFunctionSelectors[_facet].functionSelectors;
}
/// @notice Get all the facet addresses used by a diamond.
/// @return facetAddresses_
function facetAddresses() external override view returns (address[] memory facetAddresses_) {
LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage();
facetAddresses_ = ds.facetAddresses;
}
/// @notice Gets the facet that supports the given selector.
/// @dev If facet is not found return address(0).
/// @param _functionSelector The function selector.
/// @return facetAddress_ The facet address.
function facetAddress(bytes4 _functionSelector) external override view returns (address facetAddress_) {
LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage();
facetAddress_ = ds.selectorToFacetAndPosition[_functionSelector].facetAddress;
}
// This implements ERC-165.
function supportsInterface(bytes4 _interfaceId) external override view returns (bool) {
LibDiamond.DiamondStorage storage ds = LibDiamond.diamondStorage();
return ds.supportedInterfaces[_interfaceId];
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
/// @title Dividend-Paying Token Interface
/// @author Roger Wu (https://github.com/roger-wu)
/// @dev An interface for a dividend-paying token contract.
interface IDividendPayingToken {
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function dividendOf(address _owner) external view returns(uint256);
/// @dev This event MUST emit when ether is distributed to token holders.
/// @param from The address which sends ether to this contract.
/// @param weiAmount The amount of distributed ether in wei.
event DividendsDistributed(
address indexed from,
uint256 weiAmount
);
/// @dev This event MUST emit when an address withdraws their dividend.
/// @param to The address which withdraws ether from this contract.
/// @param weiAmount The amount of withdrawn ether in wei.
event DividendWithdrawn(
address indexed to,
uint256 weiAmount
);
/// @notice View the amount of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` can withdraw.
function withdrawableDividendOf(address _owner) external view returns(uint256);
/// @notice View the amount of dividend in wei that an address has withdrawn.
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has withdrawn.
function withdrawnDividendOf(address _owner) external view returns(uint256);
/// @notice View the amount of dividend in wei that an address has earned in total.
/// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
/// @param _owner The address of a token holder.
/// @return The amount of dividend in wei that `_owner` has earned in total.
function accumulativeDividendOf(address _owner) external view returns(uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title ERC-173 Contract Ownership Standard
/// Note: the ERC-165 identifier for this interface is 0x7f5828d0
/* is ERC165 */
interface IERC173 {
/// @dev This emits when ownership of a contract changes.
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/// @notice Get the address of the owner
/// @return owner_ The address of the owner.
function owner() external view returns (address owner_);
/// @notice Set the address of the new owner of the contract
/// @dev Set _newOwner to address(0) to renounce any ownership.
/// @param _newOwner The address of the new owner of the contract
function transferOwnership(address _newOwner) external;
}
// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;
interface ISwapFactoryV2 {
function createPair(
address tokenA,
address tokenB
) external returns (address);
function getPair(address tokenA, address tokenB) external view returns(address);
}
// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;
import './IUniswapV3SwapCallback.sol';
/// @title Router token swapping functionality
/// @notice Functions for swapping tokens via Uniswap V3
interface ISwapRouter is IUniswapV3SwapCallback {
struct ExactInputSingleParams {
address tokenIn;
address tokenOut;
uint24 fee;
address recipient;
uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
uint160 sqrtPriceLimitX96;
}
/// @notice Swaps `amountIn` of one token for as much as possible of another token
/// @param params The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata
/// @return amountOut The amount of the received token
function exactInputSingle(ExactInputSingleParams calldata params) external payable returns (uint256 amountOut);
struct ExactInputParams {
bytes path;
address recipient;
uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
}
/// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path
/// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata
/// @return amountOut The amount of the received token
function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut);
struct ExactOutputSingleParams {
address tokenIn;
address tokenOut;
uint24 fee;
address recipient;
uint256 deadline;
uint256 amountOut;
uint256 amountInMaximum;
uint160 sqrtPriceLimitX96;
}
/// @notice Swaps as little as possible of one token for `amountOut` of another token
/// @param params The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata
/// @return amountIn The amount of the input token
function exactOutputSingle(ExactOutputSingleParams calldata params) external payable returns (uint256 amountIn);
struct ExactOutputParams {
bytes path;
address recipient;
uint256 deadline;
uint256 amountOut;
uint256 amountInMaximum;
}
/// @notice Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed)
/// @param params The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata
/// @return amountIn The amount of the input token
function exactOutput(ExactOutputParams calldata params) external payable returns (uint256 amountIn);
}
// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;
interface ISwapRouterV2 {
function factory() external view returns (address);
function WETH() external view returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Callback for IUniswapV3PoolActions#swap
/// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface
interface IUniswapV3SwapCallback {
/// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap.
/// @dev In the implementation you must pay the pool tokens owed for the swap.
/// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.
/// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.
/// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by
/// the end of the swap. If positive, the callback must send that amount of token0 to the pool.
/// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by
/// the end of the swap. If positive, the callback must send that amount of token1 to the pool.
/// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call
function uniswapV3SwapCallback(
int256 amount0Delta,
int256 amount1Delta,
bytes calldata data
) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
interface IVestingSchedule {
function getVestingSchedule(
address _beneficiary
)
external
view
returns (
bool initialized,
address beneficiary,
uint256 cliff,
uint256 start,
uint256 duration,
uint256 slicePeriodSeconds,
uint256 amountTotal,
uint256 released
);
function computeReleasableAmount(
address _beneficiary
) external view returns (uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IDiamondCut {
enum FacetCutAction {
Add,
Replace,
Remove
}
// Add=0, Replace=1, Remove=2
struct FacetCut {
address facetAddress;
FacetCutAction action;
bytes4[] functionSelectors;
}
/// @notice Add/replace/remove any number of functions and optionally execute
/// a function with delegatecall
/// @param _diamondCut Contains the facet addresses and function selectors
/// @param _init The address of the contract or facet to execute _calldata
/// @param _calldata A function call, including function selector and arguments
/// _calldata is executed with delegatecall on _init
function diamondCut(
FacetCut[] calldata _diamondCut,
address _init,
bytes calldata _calldata
) external;
event DiamondCut(FacetCut[] _diamondCut, address _init, bytes _calldata);
}
/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamond Standard: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/
// A loupe is a small magnifying glass used to look at diamonds.
// These functions look at diamonds
interface IDiamondLoupe {
/// These functions are expected to be called frequently
/// by tools.
struct Facet {
address facetAddress;
bytes4[] functionSelectors;
}
/// @notice Gets all facet addresses and their four byte function selectors.
/// @return facets_ Facet
function facets() external view returns (Facet[] memory facets_);
/// @notice Gets all the function selectors supported by a specific facet.
/// @param _facet The facet address.
/// @return facetFunctionSelectors_
function facetFunctionSelectors(
address _facet
) external view returns (bytes4[] memory facetFunctionSelectors_);
/// @notice Get all the facet addresses used by a diamond.
/// @return facetAddresses_
function facetAddresses()
external
view
returns (address[] memory facetAddresses_);
/// @notice Gets the facet that supports the given selector.
/// @dev If facet is not found return address(0).
/// @param _functionSelector The function selector.
/// @return facetAddress_ The facet address.
function facetAddress(
bytes4 _functionSelector
) external view returns (address facetAddress_);
}
library LibDiamond {
bytes32 constant DIAMOND_STORAGE_POSITION =
keccak256("diamond.standard.diamond.storage");
bytes32 constant REWARD_STORAGE_POSITION =
keccak256("diamond.standard.reward.storage");
address public constant BURN_ADDRESS =
0x000000000000000000000000000000000000dEaD;
bytes32 public constant VESTING_ROLE = keccak256("VESTING_ROLE");
bytes32 public constant EXCLUDED_FROM_FEE_ROLE =
keccak256("EXCLUDED_FROM_FEE_ROLE");
bytes32 public constant EXCLUDED_FROM_MAX_WALLET_ROLE =
keccak256("EXCLUDED_FROM_MAX_WALLET_ROLE");
bytes32 public constant EXCLUDED_FROM_REWARD_ROLE =
keccak256("EXCLUDED_FROM_REWARD_ROLE");
bytes32 public constant PROCESS_FEE_ROLE = keccak256("PROCESS_FEE_ROLE");
bytes32 public constant CLAIM_REWARD_ROLE = keccak256("CLAIM_REWARD_ROLE");
bytes32 public constant WHITELISTED_ROLE = keccak256("WHITELIST_ROLE");
bytes32 public constant BLACKLISTED_ROLE = keccak256("BLACKLIST_ROLE");
uint256 internal constant MAGNITUDE = 2 ** 128;
uint32 public constant PERCENTAGE_DENOMINATOR = 10000;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
event DiamondCut(
IDiamondCut.FacetCut[] _diamondCut,
address _init,
bytes _calldata
);
struct FacetAddressAndPosition {
address facetAddress;
uint16 functionSelectorPosition; // position in facetFunctionSelectors.functionSelectors array
}
struct FacetFunctionSelectors {
bytes4[] functionSelectors;
uint16 facetAddressPosition; // position of facetAddress in facetAddresses array
}
struct DiamondStorage {
// maps function selector to the facet address and
// the position of the selector in the facetFunctionSelectors.selectors array
mapping(bytes4 => FacetAddressAndPosition) selectorToFacetAndPosition;
// maps facet addresses to function selectors
mapping(address => FacetFunctionSelectors) facetFunctionSelectors;
// facet addresses
address[] facetAddresses;
// Used to query if a contract implements an interface.
// Used to implement ERC-165.
mapping(bytes4 => bool) supportedInterfaces;
address contractOwner;
string name;
string symbol;
address methodsExposureFacetAddress;
address liquidityWallet;
address defaultRouter;
uint256 numTokensToSwap;
uint256 maxTokenPerWallet;
mapping(address => bool) lpPools;
mapping(address => bool) swapRouters;
uint32 processingGas;
bool processingFees;
Fee fee;
bool processRewards;
address vestingContract;
FeeExt feeExt;
}
function diamondStorage()
internal
pure
returns (DiamondStorage storage ds)
{
bytes32 position = DIAMOND_STORAGE_POSITION;
assembly {
ds.slot := position
}
}
// ----- REWARD ----- //
struct Fee {
uint32 liquidityBuyFee;
uint32 rewardBuyFee;
uint32 liquiditySellFee;
uint32 rewardSellFee;
}
struct FeeExt {
address treasury;
address dev;
uint32 treasurySellFee;
uint32 treasuryBuyFee;
uint32 devSellFee;
uint32 devBuyFee;
}
struct RewardToken {
address token;
address router;
address[] path;
}
struct Map {
address[] keys;
mapping(address => uint256) values;
mapping(address => uint256) indexOf;
mapping(address => bool) inserted;
}
struct RewardStorage {
mapping(address => int256) magnifiedReward;
mapping(address => uint256) withdrawnReward;
mapping(address => uint256) claimTimes;
mapping(address => bool) manualClaim;
mapping(address => uint256) rewardBalances;
uint256 totalRewardSupply;
RewardToken rewardToken;
RewardToken goHam;
Map rewardHolders;
uint256 magnifiedRewardPerShare;
uint256 minRewardBalance;
uint256 totalAccruedReward;
uint256 lastProcessedIndex;
uint32 claimTimeout;
bool useV3;
bytes pathV3;
}
function rewardStorage() internal pure returns (RewardStorage storage rs) {
bytes32 position = REWARD_STORAGE_POSITION;
assembly {
rs.slot := position
}
}
function setContractOwner(address _newOwner) internal {
DiamondStorage storage ds = diamondStorage();
address previousOwner = ds.contractOwner;
ds.contractOwner = _newOwner;
emit OwnershipTransferred(previousOwner, _newOwner);
}
function contractOwner() internal view returns (address contractOwner_) {
contractOwner_ = diamondStorage().contractOwner;
}
function enforceIsContractOwner() internal view {
require(
msg.sender == diamondStorage().contractOwner,
"LibDiamond: Must be contract owner"
);
}
// Internal function version of diamondCut
function diamondCut(
IDiamondCut.FacetCut[] memory _diamondCut,
address _init,
bytes memory _calldata
) internal {
for (
uint256 facetIndex;
facetIndex < _diamondCut.length;
facetIndex++
) {
IDiamondCut.FacetCutAction action = _diamondCut[facetIndex].action;
if (action == IDiamondCut.FacetCutAction.Add) {
addFunctions(
_diamondCut[facetIndex].facetAddress,
_diamondCut[facetIndex].functionSelectors
);
} else if (action == IDiamondCut.FacetCutAction.Replace) {
replaceFunctions(
_diamondCut[facetIndex].facetAddress,
_diamondCut[facetIndex].functionSelectors
);
} else if (action == IDiamondCut.FacetCutAction.Remove) {
removeFunctions(
_diamondCut[facetIndex].facetAddress,
_diamondCut[facetIndex].functionSelectors
);
} else {
revert("LibDiamondCut: Incorrect FacetCutAction");
}
}
emit DiamondCut(_diamondCut, _init, _calldata);
initializeDiamondCut(_init, _calldata);
}
function addFunctions(
address _facetAddress,
bytes4[] memory _functionSelectors
) internal {
require(
_functionSelectors.length > 0,
"LibDiamondCut: No selectors in facet to cut"
);
DiamondStorage storage ds = diamondStorage();
require(
_facetAddress != address(0),
"LibDiamondCut: Add facet can't be address(0)"
);
uint16 selectorPosition = uint16(
ds.facetFunctionSelectors[_facetAddress].functionSelectors.length
);
// add new facet address if it does not exist
if (selectorPosition == 0) {
enforceHasContractCode(
_facetAddress,
"LibDiamondCut: New facet has no code"
);
ds
.facetFunctionSelectors[_facetAddress]
.facetAddressPosition = uint16(ds.facetAddresses.length);
ds.facetAddresses.push(_facetAddress);
}
for (
uint256 selectorIndex;
selectorIndex < _functionSelectors.length;
selectorIndex++
) {
bytes4 selector = _functionSelectors[selectorIndex];
address oldFacetAddress = ds
.selectorToFacetAndPosition[selector]
.facetAddress;
require(
oldFacetAddress == address(0),
"LibDiamondCut: Can't add function that already exists"
);
ds.facetFunctionSelectors[_facetAddress].functionSelectors.push(
selector
);
ds
.selectorToFacetAndPosition[selector]
.facetAddress = _facetAddress;
ds
.selectorToFacetAndPosition[selector]
.functionSelectorPosition = selectorPosition;
selectorPosition++;
}
}
function replaceFunctions(
address _facetAddress,
bytes4[] memory _functionSelectors
) internal {
require(
_functionSelectors.length > 0,
"LibDiamondCut: No selectors in facet to cut"
);
DiamondStorage storage ds = diamondStorage();
require(
_facetAddress != address(0),
"LibDiamondCut: Add facet can't be address(0)"
);
uint16 selectorPosition = uint16(
ds.facetFunctionSelectors[_facetAddress].functionSelectors.length
);
// add new facet address if it does not exist
if (selectorPosition == 0) {
enforceHasContractCode(
_facetAddress,
"LibDiamondCut: New facet has no code"
);
ds
.facetFunctionSelectors[_facetAddress]
.facetAddressPosition = uint16(ds.facetAddresses.length);
ds.facetAddresses.push(_facetAddress);
}
for (
uint256 selectorIndex;
selectorIndex < _functionSelectors.length;
selectorIndex++
) {
bytes4 selector = _functionSelectors[selectorIndex];
address oldFacetAddress = ds
.selectorToFacetAndPosition[selector]
.facetAddress;
require(
oldFacetAddress != _facetAddress,
"LibDiamondCut: Can't replace function with same function"
);
// add function
ds
.selectorToFacetAndPosition[selector]
.functionSelectorPosition = selectorPosition;
ds.facetFunctionSelectors[_facetAddress].functionSelectors.push(
selector
);
ds
.selectorToFacetAndPosition[selector]
.facetAddress = _facetAddress;
selectorPosition++;
}
}
function removeFunctions(
address _facetAddress,
bytes4[] memory _functionSelectors
) internal {
require(
_functionSelectors.length > 0,
"LibDiamondCut: No selectors in facet to cut"
);
DiamondStorage storage ds = diamondStorage();
// if function does not exist then do nothing and return
require(
_facetAddress == address(0),
"LibDiamondCut: Remove facet address must be address(0)"
);
for (
uint256 selectorIndex;
selectorIndex < _functionSelectors.length;
selectorIndex++
) {
bytes4 selector = _functionSelectors[selectorIndex];
address oldFacetAddress = ds
.selectorToFacetAndPosition[selector]
.facetAddress;
removeFunction(oldFacetAddress, selector);
}
}
function removeFunction(address _facetAddress, bytes4 _selector) internal {
DiamondStorage storage ds = diamondStorage();
require(
_facetAddress != address(0),
"LibDiamondCut: Can't remove function that doesn't exist"
);
// an immutable function is a function defined directly in a diamond
require(
_facetAddress != address(this),
"LibDiamondCut: Can't remove immutable function"
);
// replace selector with last selector, then delete last selector
uint256 selectorPosition = ds
.selectorToFacetAndPosition[_selector]
.functionSelectorPosition;
uint256 lastSelectorPosition = ds
.facetFunctionSelectors[_facetAddress]
.functionSelectors
.length - 1;
// if not the same then replace _selector with lastSelector
if (selectorPosition != lastSelectorPosition) {
bytes4 lastSelector = ds
.facetFunctionSelectors[_facetAddress]
.functionSelectors[lastSelectorPosition];
ds.facetFunctionSelectors[_facetAddress].functionSelectors[
selectorPosition
] = lastSelector;
ds
.selectorToFacetAndPosition[lastSelector]
.functionSelectorPosition = uint16(selectorPosition);
}
// delete the last selector
ds.facetFunctionSelectors[_facetAddress].functionSelectors.pop();
delete ds.selectorToFacetAndPosition[_selector];
// if no more selectors for facet address then delete the facet address
if (lastSelectorPosition == 0) {
// replace facet address with last facet address and delete last facet address
uint256 lastFacetAddressPosition = ds.facetAddresses.length - 1;
uint256 facetAddressPosition = ds
.facetFunctionSelectors[_facetAddress]
.facetAddressPosition;
if (facetAddressPosition != lastFacetAddressPosition) {
address lastFacetAddress = ds.facetAddresses[
lastFacetAddressPosition
];
ds.facetAddresses[facetAddressPosition] = lastFacetAddress;
ds
.facetFunctionSelectors[lastFacetAddress]
.facetAddressPosition = uint16(facetAddressPosition);
}
ds.facetAddresses.pop();
delete ds
.facetFunctionSelectors[_facetAddress]
.facetAddressPosition;
}
}
function initializeDiamondCut(
address _init,
bytes memory _calldata
) internal {
if (_init == address(0)) {
require(
_calldata.length == 0,
"LibDiamondCut: _init is address(0) but_calldata is not empty"
);
} else {
require(
_calldata.length > 0,
"LibDiamondCut: _calldata is empty but _init is not address(0)"
);
if (_init != address(this)) {
enforceHasContractCode(
_init,
"LibDiamondCut: _init address has no code"
);
}
(bool success, bytes memory error) = _init.delegatecall(_calldata);
if (!success) {
if (error.length > 0) {
// bubble up the error
revert(string(error));
} else {
revert("LibDiamondCut: _init function reverted");
}
}
}
}
function enforceHasContractCode(
address _contract,
string memory _errorMessage
) internal view {
uint256 contractSize;
assembly {
contractSize := extcodesize(_contract)
}
require(contractSize > 0, _errorMessage);
}
}
contract WithStorage {
function _ds() internal pure returns (LibDiamond.DiamondStorage storage) {
return LibDiamond.diamondStorage();
}
function _rs() internal pure returns (LibDiamond.RewardStorage storage) {
return LibDiamond.rewardStorage();
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import "./LibDiamond.sol";
import {IERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC20Upgradeable.sol";
contract MethodsExposureFacet is IDiamondCut, IDiamondLoupe, IERC20Upgradeable {
// ==================== IDiamondLoupe & IDiamondCut ==================== //
/// @notice Add/replace/remove any number of functions and optionally execute
/// a function with delegatecall
/// @param _diamondCut Contains the facet addresses and function selectors
/// @param _init The address of the contract or facet to execute _calldata
/// @param _calldata A function call, including function selector and arguments
/// _calldata is executed with delegatecall on _init
function diamondCut(
IDiamondCut.FacetCut[] calldata _diamondCut,
address _init,
bytes calldata _calldata
) external {
LibDiamond.enforceIsContractOwner();
LibDiamond.diamondCut(_diamondCut, _init, _calldata);
}
/// These functions are expected to be called frequently by tools.
/// @notice Gets all facets and their selectors.
/// @return facets_ Facet
function facets() external view override returns (Facet[] memory facets_) {
facets_ = new Facet[](0);
}
/// @notice Gets all the function selectors provided by a facet.
/// @param _facet The facet address.
/// @return facetFunctionSelectors_
function facetFunctionSelectors(address _facet)
external
view
override
returns (bytes4[] memory facetFunctionSelectors_)
{
facetFunctionSelectors_ = new bytes4[](0);
}
/// @notice Get all the facet addresses used by a diamond.
/// @return facetAddresses_
function facetAddresses()
external
view
override
returns (address[] memory facetAddresses_)
{
facetAddresses_ = new address[](0);
}
/// @notice Gets the facet that supports the given selector.
/// @dev If facet is not found return address(0).
/// @param _functionSelector The function selector.
/// @return facetAddress_ The facet address.
function facetAddress(bytes4 _functionSelector)
external
view
override
returns (address facetAddress_)
{
return address(0);
}
// ==================== ERC20 ==================== //
function name() public view virtual returns (string memory) {
return "";
}
function symbol() public view virtual returns (string memory) {
return "";
}
function totalSupply() external view returns (uint256) {
return 0;
}
function balanceOf(address account) external view returns (uint256) {
return 0;
}
function transfer(address to, uint256 amount) external returns (bool) {
return false;
}
function allowance(address owner, address spender)
external
view
returns (uint256)
{
return 0;
}
function approve(address spender, uint256 amount) external returns (bool) {
return false;
}
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool) {
return false;
}
function setLiquidityWallet(address _liquidityWallet) external {}
function setLiquidityFee(uint256 _liquidityBuyFee) external {}
function setRewardFee(uint256 _rewardBuyFee) external {}
function setIsLpPool(address _pairAddress, bool _isLp) external {}
function setNumTokensToSwap(uint256 _amount) external {}
function setDefaultRouter(address _router) external {}
function setSwapRouter(address _router, bool _isRouter) external {}
function setManualClaim(bool _manualClaim) external {}
function setMaxTokenPerWallet(uint256 _maxTokenPerWallet) external {}
// ==================== Views ==================== //
function implementation() public view returns (address) {
return address(0);
}
function liquidityWallet() external view returns (address) {
return address(0);
}
function isExcludedFromFee(address account) public view returns (bool) {
return false;
}
function isExcludedMaxWallet(address account) external view returns (bool) {
return false;
}
function isExcludedFromRewards(address account) public view returns (bool) {
return false;
}
function isSwapRouter(address routerAddress) external view returns (bool) {
return false;
}
function isLpPool(address pairAddress) external view returns (bool) {
return false;
}
function maxTokenPerWallet() external view returns (uint256) {
return 0;
}
// ==================== DividendPayingToken ==================== //
function dividendOf(address _owner)
public
view
returns (uint256 dividends)
{
return 0;
}
function withdrawnDividendOf(address _owner)
public
view
returns (uint256 dividends)
{
return 0;
}
function accumulativeDividendOf(address _owner)
public
view
returns (uint256 accumulated)
{
return 0;
}
function withdrawableDividendOf(address _owner)
public
view
returns (uint256 withdrawable)
{
return 0;
}
function dividendBalanceOf(address account) public view returns (uint256) {
return 0;
}
// ==================== WithReward ==================== //
function claimRewards() external {}
function getRewardToken()
public
view
returns (
address token,
address router,
address[] memory path
)
{
return (address(0), address(0), new address[](0));
}
function totalRewardSupply() public view returns (uint256) {
return 0;
}
function getLastProcessedIndex() external view returns (uint256 index) {
return 0;
}
/// @return numHolders The number of reward tracking token holders
function getRewardHolders() external view returns (uint256 numHolders) {
return 0;
}
/// Gets reward account information by address
function getRewardAccount(address _account)
public
view
returns (
address account,
int256 index,
int256 iterationsUntilProcessed,
uint256 withdrawableRewards,
uint256 totalRewards,
uint256 lastClaimTime,
uint256 nextClaimTime,
uint256 secondsUntilAutoClaimAvailable
)
{
return (address(0), 0, 0, 0, 0, 0, 0, 0);
}
function getRewardAccountAtIndex(uint256 _index)
public
view
returns (
address account,
int256 index,
int256 iterationsUntilProcessed,
uint256 withdrawableRewards,
uint256 totalRewards,
uint256 lastClaimTime,
uint256 nextClaimTime,
uint256 secondsUntilAutoClaimAvailable
)
{
return (address(0), 0, 0, 0, 0, 0, 0, 0);
}
// ==================== Hamachi ==================== //
function buyFees()
public
view
returns (
uint256,
uint256,
uint256
)
{
return (0, 0, 0);
}
function sellFees()
external
view
returns (
uint256,
uint256,
uint256
)
{
return (0, 0, 0);
}
function totalBuyFees() public view returns (uint256) {
return 0;
}
function totalSellFees() public view returns (uint256) {
return 0;
}
function numTokensToSwap() external view returns (uint256) {
return 0;
}
// ==================== Vesting ==================== //
function getTotalAmountInVesting() public view returns (uint256) {
return 0;
}
function computeReleasableAmount(address _beneficiary)
external
view
returns (uint256)
{
return 0;
}
function getVestingSchedule(address _beneficiary)
external
view
returns (
bool initialized,
address beneficiary,
uint256 cliff,
uint256 start,
uint256 duration,
uint256 slicePeriodSeconds,
uint256 amountTotal,
uint256 released
)
{
return (false, address(0), 0, 0, 0, 0, 0, 0);
}
function release(address _beneficiary, uint256 _amount) external {}
function createVestingSchedule(
address _beneficiary,
uint256 _start,
uint256 _cliff,
uint256 _duration,
uint256 _slicePeriodSeconds,
uint256 _amount
) external {}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import "./LibDiamond.sol";
import "@openzeppelin/contracts/utils/math/SafeCast.sol";
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "./ISwapRouter.sol";
import "./ISwapRouterV2.sol";
import "./IDividendPayingToken.sol";
import "./IVestingSchedule.sol";
contract WithReward is
WithStorage,
AccessControlUpgradeable,
IDividendPayingToken
{
// ==================== Errors ==================== //
error InvalidClaimTime();
error NoSupply();
error NullAddress();
// ==================== Events ==================== //
event UpdateRewardToken(address token);
event RewardProcessed(
address indexed owner,
uint256 value,
address indexed token
);
event ProcessAccount(address indexed owner, bool indexed isHami, address indexed token);
function __WithReward_init() internal onlyInitializing {
__AccessControl_init();
_grantRole(DEFAULT_ADMIN_ROLE, _msgSender());
// configure excluded from fee role
_grantRole(LibDiamond.EXCLUDED_FROM_FEE_ROLE, _msgSender());
_grantRole(LibDiamond.EXCLUDED_FROM_FEE_ROLE, address(this));
_grantRole(LibDiamond.EXCLUDED_FROM_FEE_ROLE, _ds().liquidityWallet); // protocol added liquidity
// configure excluded from antiwhale role
_grantRole(LibDiamond.EXCLUDED_FROM_MAX_WALLET_ROLE, _msgSender());
_grantRole(LibDiamond.EXCLUDED_FROM_MAX_WALLET_ROLE, address(this));
_grantRole(LibDiamond.EXCLUDED_FROM_MAX_WALLET_ROLE, address(0));
_grantRole(
LibDiamond.EXCLUDED_FROM_MAX_WALLET_ROLE,
LibDiamond.BURN_ADDRESS
);
_grantRole(
LibDiamond.EXCLUDED_FROM_MAX_WALLET_ROLE,
_ds().liquidityWallet
);
_grantRole(LibDiamond.EXCLUDED_FROM_REWARD_ROLE, _msgSender());
_grantRole(LibDiamond.EXCLUDED_FROM_REWARD_ROLE, address(this));
_grantRole(LibDiamond.EXCLUDED_FROM_REWARD_ROLE, address(0));
_grantRole(
LibDiamond.EXCLUDED_FROM_REWARD_ROLE,
LibDiamond.BURN_ADDRESS
);
}
// ==================== DividendPayingToken ==================== //
// @return dividends The amount of reward in wei that `_owner` can withdraw.
function dividendOf(
address _owner
) public view returns (uint256 dividends) {
return withdrawableDividendOf(_owner);
}
// @return dividends The amount of rewards that `_owner` has withdrawn
function withdrawnDividendOf(
address _owner
) public view returns (uint256 dividends) {
return _rs().withdrawnReward[_owner];
}
/// The total accumulated rewards for a address
function accumulativeDividendOf(
address _owner
) public view returns (uint256 accumulated) {
return
SafeCast.toUint256(
SafeCast.toInt256(
_rs().magnifiedRewardPerShare * rewardBalanceOf(_owner)
) + _rs().magnifiedReward[_owner]
) / LibDiamond.MAGNITUDE;
}
/// The total withdrawable rewards for a address
function withdrawableDividendOf(
address _owner
) public view returns (uint256 withdrawable) {
return accumulativeDividendOf(_owner) - _rs().withdrawnReward[_owner];
}
// ==================== Views ==================== //
function getRewardPerShare() public view returns (uint256) {
return _rs().magnifiedRewardPerShare;
}
function getGoHam()
external
view
returns (address token, address router, bool isV3)
{
LibDiamond.RewardToken memory goHam = _rs().goHam;
return (goHam.token, goHam.router, _rs().useV3);
}
function getRewardToken()
external
view
returns (address token, address router, bool isV3)
{
LibDiamond.RewardToken memory rewardToken = _rs().rewardToken;
return (rewardToken.token, rewardToken.router, _rs().useV3);
}
function rewardBalanceOf(address account) public view returns (uint256) {
return _rs().rewardBalances[account];
}
function totalRewardSupply() public view returns (uint256) {
return _rs().totalRewardSupply;
}
function isExcludedFromRewards(address account) public view returns (bool) {
return hasRole(LibDiamond.EXCLUDED_FROM_REWARD_ROLE, account);
}
/// Gets the index of the last processed wallet
// @return index The index of the last wallet that was paid rewards
function getLastProcessedIndex() external view returns (uint256 index) {
return _rs().lastProcessedIndex;
}
// @return numHolders The number of reward tracking token holders
function getRewardHolders() external view returns (uint256 numHolders) {
return _rs().rewardHolders.keys.length;
}
// gets reward account information by address
function getRewardAccount(
address _account
)
public
view
returns (
address account,
int256 index,
int256 numInQueue,
uint256 rewardBalance,
uint256 withdrawableRewards,
uint256 totalRewards,
bool manualClaim
)
{
account = _account;
index = getIndexOfKey(account);
if (index < 0) {
return (account, -1, 0, 0, 0, 0, false);
}
uint256 lastProcessedIndex = _rs().lastProcessedIndex;
numInQueue = 0;
if (uint256(index) > lastProcessedIndex) {
numInQueue = index - int256(lastProcessedIndex);
} else {
uint256 holders = _rs().rewardHolders.keys.length;
uint256 processesUntilEndOfArray = holders > lastProcessedIndex
? holders - lastProcessedIndex
: 0;
numInQueue = index + int256(processesUntilEndOfArray);
}
rewardBalance = rewardBalanceOf(account);
withdrawableRewards = withdrawableDividendOf(account);
totalRewards = accumulativeDividendOf(account);
manualClaim = _rs().manualClaim[account];
}
function getRewardAccountAtIndex(
uint256 _index
)
external
view
returns (
address account,
int256 index,
int256 numInQueue,
uint256 rewardBalance,
uint256 withdrawableRewards,
uint256 totalRewards,
bool manualClaim
)
{
if (_index >= _rs().rewardHolders.keys.length) {
return (account, -1, 0, 0, 0, 0, false);
}
return getRewardAccount(_rs().rewardHolders.keys[_index]);
}
// function getAccountAtIndex(uint256 _index)
// external
// view
// returns (
// address account,
// int256 index,
// int256 numInQueue,
// uint256 withdrawableRewards,
// uint256 totalRewards,
// uint256 lastClaimTime,
// uint256 nextClaimTime,
// uint256 timeTillAutoClaim,
// bool manualClaim
// )
// {
// return getRewardAccount(_rs().rewardHolders.keys[_index]);
// }
// ==================== Management ==================== //
function setRewardPerShare(
uint256 _newPerShare
) external onlyRole(DEFAULT_ADMIN_ROLE) {
_rs().magnifiedRewardPerShare = _newPerShare;
}
// ==================== Management ==================== //
function claimRewards(bool goHami, uint256 expectedOutput) external {
_processAccount(_msgSender(), goHami, expectedOutput);
}
// @notice Adds incoming funds to the rewards per share
function accrueReward(uint256 amount) internal {
uint256 rewardSupply = totalRewardSupply();
if (rewardSupply <= 0) revert NoSupply();
if (amount > 0) {
_rs().magnifiedRewardPerShare +=
(amount * LibDiamond.MAGNITUDE) /
rewardSupply;
_rs().totalAccruedReward += amount;
}
}
// Vesting contract can update reward balance of account
function updateRewardBalance(
address account,
uint256 balance
) public onlyRole(LibDiamond.VESTING_ROLE) {
_setRewardBalance(account, balance);
}
function setGoHam(
address token,
address router,
address[] calldata path,
bool _useV3,
bytes calldata pathV3
) external {
if (token == address(0)) revert NullAddress();
LibDiamond.RewardToken storage goHam = _rs().goHam;
goHam.token = token;
goHam.router = router;
goHam.path = path;
_rs().useV3 = _useV3;
_rs().pathV3 = pathV3;
}
// @param token The token address of the reward
function setRewardToken(
address token,
address router,
address[] calldata path,
bool _useV3,
bytes calldata pathV3
) external onlyRole(DEFAULT_ADMIN_ROLE) {
// token == address(0) means reward by ETH
LibDiamond.RewardToken storage rewardToken = _rs().rewardToken;
rewardToken.token = token;
rewardToken.router = router;
rewardToken.path = path;
_rs().useV3 = _useV3;
_rs().pathV3 = pathV3;
_ds().swapRouters[router] = true;
emit UpdateRewardToken(token);
}
function excludeFromReward(
address _account
) external onlyRole(DEFAULT_ADMIN_ROLE) {
_grantRole(LibDiamond.EXCLUDED_FROM_REWARD_ROLE, _account);
_setBalance(_account, 0);
_remove(_account);
}
function setMinBalanceForReward(
uint256 newValue
) external onlyRole(DEFAULT_ADMIN_ROLE) {
_rs().minRewardBalance = newValue;
}
function setManualClaim(bool _manual) external {
_rs().manualClaim[msg.sender] = _manual;
}
function overrideWithdrawnRewards(
address _owner,
uint256 newValue
) external onlyRole(DEFAULT_ADMIN_ROLE) {
_rs().withdrawnReward[_owner] = newValue;
}
// @param _new The new time (in seconds) needed between claims
// @dev Must be between 3600 and 86400 seconds
function updateClaimTimeout(
uint32 _new
) external onlyRole(DEFAULT_ADMIN_ROLE) {
if (_new < 3600 || _new > 86400) revert InvalidClaimTime();
_rs().claimTimeout = _new;
}
// ==================== Internal ==================== //
// This function uses a set amount of gas to process rewards for as many wallets as it can
function _processRewards() internal {
uint256 gas = _ds().processingGas;
if (gas <= 0) {
return;
}
uint256 numHolders = _rs().rewardHolders.keys.length;
uint256 _lastProcessedIndex = _rs().lastProcessedIndex;
uint256 gasUsed = 0;
uint256 gasLeft = gasleft();
uint256 iterations = 0;
while (gasUsed < gas && iterations < numHolders) {
++iterations;
if (++_lastProcessedIndex >= _rs().rewardHolders.keys.length) {
_lastProcessedIndex = 0;
}
address account = _rs().rewardHolders.keys[_lastProcessedIndex];
if (_rs().manualClaim[account]) continue;
if (!_canAutoClaim(_rs().claimTimes[account])) continue;
_processAccount(account, false, 0);
uint256 newGasLeft = gasleft();
if (gasLeft > newGasLeft) {
gasUsed += gasLeft - newGasLeft;
}
gasLeft = newGasLeft;
}
_rs().lastProcessedIndex = _lastProcessedIndex;
}
// @param newBalance The new balance to set for the account.
function _setRewardBalance(address account, uint256 newBalance) internal {
if (isExcludedFromRewards(account)) return;
// (, , , , , , uint256 amountTotal, uint256 released) = IVestingSchedule(
// _ds().vestingContract
// ).getVestingSchedule(account);
// if (amountTotal > 0) {
// newBalance += amountTotal - released;
// }
if (newBalance >= _rs().minRewardBalance) {
_setBalance(account, newBalance);
_set(account, newBalance);
} else {
_setBalance(account, 0);
_remove(account);
_processAccount(account, false, 0);
}
}
function _canAutoClaim(uint256 lastClaimTime) internal view returns (bool) {
return
lastClaimTime > block.timestamp
? false
: block.timestamp - lastClaimTime >= _rs().claimTimeout;
}
function _set(address key, uint256 val) internal {
LibDiamond.Map storage rewardHolders = _rs().rewardHolders;
if (rewardHolders.inserted[key]) {
rewardHolders.values[key] = val;
} else {
rewardHolders.inserted[key] = true;
rewardHolders.values[key] = val;
rewardHolders.indexOf[key] = rewardHolders.keys.length;
rewardHolders.keys.push(key);
}
}
function _remove(address key) internal {
LibDiamond.Map storage rewardHolders = _rs().rewardHolders;
if (!rewardHolders.inserted[key]) {
return;
}
delete rewardHolders.inserted[key];
delete rewardHolders.values[key];
uint256 index = rewardHolders.indexOf[key];
uint256 lastIndex = rewardHolders.keys.length - 1;
address lastKey = rewardHolders.keys[lastIndex];
rewardHolders.indexOf[lastKey] = index;
delete rewardHolders.indexOf[key];
rewardHolders.keys[index] = lastKey;
rewardHolders.keys.pop();
}
function getIndexOfKey(address key) internal view returns (int256 index) {
return
!_rs().rewardHolders.inserted[key]
? -1
: int256(_rs().rewardHolders.indexOf[key]);
}
function _processAccount(
address _owner,
bool _goHami,
uint256 _expectedOutput
) internal {
uint256 _withdrawableReward = withdrawableDividendOf(_owner);
if (_withdrawableReward <= 0) {
return;
}
_rs().withdrawnReward[_owner] += _withdrawableReward;
_rs().claimTimes[_owner] = block.timestamp;
LibDiamond.RewardToken memory rewardToken = _goHami
? _rs().goHam
: _rs().rewardToken;
if (_rs().useV3 && !_goHami) {
_swapUsingV3(
rewardToken,
_withdrawableReward,
_owner,
_expectedOutput
);
} else {
_swapUsingV2(
rewardToken,
_withdrawableReward,
_owner,
_expectedOutput
);
}
emit ProcessAccount(_owner, _goHami, rewardToken.token);
}
function _setBalance(address _owner, uint256 _newBalance) internal {
uint256 currentBalance = rewardBalanceOf(_owner);
_rs().totalRewardSupply =
_rs().totalRewardSupply +
_newBalance -
currentBalance;
if (_newBalance > currentBalance) {
_add(_owner, _newBalance - currentBalance);
} else if (_newBalance < currentBalance) {
_subtract(_owner, currentBalance - _newBalance);
}
}
function _add(address _owner, uint256 value) internal {
_rs().magnifiedReward[_owner] -= SafeCast.toInt256(
_rs().magnifiedRewardPerShare * value
);
_rs().rewardBalances[_owner] += value;
}
function _subtract(address _owner, uint256 value) internal {
_rs().magnifiedReward[_owner] += SafeCast.toInt256(
_rs().magnifiedRewardPerShare * value
);
_rs().rewardBalances[_owner] -= value;
}
function _swapUsingV2(
LibDiamond.RewardToken memory rewardToken,
uint256 _value,
address _owner,
uint256 _expectedOutput
) internal {
if (rewardToken.token == address(0)) {
(bool success, ) = payable(_owner).call{value: _value}("");
} else {
try
ISwapRouterV2(rewardToken.router).swapExactETHForTokensSupportingFeeOnTransferTokens{value: _value}(_expectedOutput, rewardToken.path, _owner, block.timestamp)
{
emit RewardProcessed(_owner, _value, rewardToken.token);
} catch {
_rs().withdrawnReward[_owner] -= _value;
}
}
}
function _swapUsingV3(
LibDiamond.RewardToken memory rewardToken,
uint256 _value,
address _owner,
uint256 _expectedOutput
) internal {
if (rewardToken.token == address(0)) {
(bool success, ) = payable(_owner).call{value: _value}("");
} else {
ISwapRouter.ExactInputParams memory params = ISwapRouter
.ExactInputParams({
path: _rs().pathV3,
recipient: address(_owner),
deadline: block.timestamp,
amountIn: _value,
amountOutMinimum: _expectedOutput
});
try ISwapRouter(rewardToken.router).exactInput{value: _value}(params) {
emit RewardProcessed(_owner, _value, rewardToken.token);
} catch {
_rs().withdrawnReward[_owner] -= _value;
}
}
}
}