Contract Source Code:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title: BUNGA
/// @author: manifold.xyz
import "./ERC1155Creator.sol";
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// //
// //
// :!!!7?!~!777~7?!. //
// .::^!!7??!!77!?J!!P7^!?!^: //
// 7??J?!~~!JPPGYJJY!5!~^~5JY?!!??. //
// 7J!^^^!?YPBBBBGPP5PPPPP7!~!YJYP~^^. .!!^. //
// .!7!!?YYJJJ5GBBYYY5P555PY5JJ55JJ77P7 :5?5Y. //
// :^~7YY!.:~7J5GPPPP55Y555PPGG55J??JJ: JJ5G~ //
// .. .~~!J!7Y7^~!7YP7!?PPY5PP5YPY7YP!~ !Y7G5! //
// ^J?:.~~:!J7:.. .?7?J~JJ^^~5GY777~^^JJ7JJ?7Y. ^Y:JPP~ //
// ^^~7!J!^J?7^JP!!YYY7~7?J!!!??. .Y!^7PG5Y7^~?7?Y7JY?~~7. .?~~P5J //
// .^:^Y5JJ!J^.^Y7:^Y!:~5?Y!JY??J?7P: ^!~7G5?!7!!.... .. .J7JPP: //
// :~YJ7?5!:^77!~^7?!!5!J?~^~P5?!!!!P~ 7JJY^. .:::. :YJ5P7 //
// ~Y7~!~!?J~^~~J5J!J5YP5577?YY??J?!7P5Y?. ^5YGPJY77YPYJJ: ~YY55. //
// .?YJJ7^:^!7?YJJGBYPPGGGG5PP55JY?!~^!5Y! ?55PYPP5?JJYYY???^ :Y?5G7 //
// :^77777!!7!!JPBG55YJ??J?PPYPPPPJ7~!7???JJ.!5??55JY5Y?7Y55Y5GY7: .5YJGP^ //
// ^7!JYJ??!^^^!JYYPGY77?J5PGGPYYJ5PGP5YJJ?!75~!Y5PP5YJPY5Y55GPJYBY!Y! YP7555. //
// :.:?J?Y55?77?J??JY5P77PYPPPP5Y555P5GGY7~^^?YYY55Y7~^::5GPPP55PGGG5J5J :5JY55B? //
// ^57!^YYJ77?7~!?YPGGBGYYPPPP555PPGGYJYYYY?!75JY5P5?!!7!?Y5YY77JP5P5PPG~ !YJ5YYGG! //
// .Y:~7JY~:..::^!7JYY5PGP55PGGGYYYJYYYJ775J??5P?J5PP5GG55Y5Y5J5P5?JGJY? .JY7Y?555P~ //
// ::7!7?J557!!!!7J5J^:^J57!?JY?57^:.J5!!~:?5YJPP5JYJJ?J55PGP55Y5PYYYY!J? .7Y?JYPPY555~ //
// .7JJ7~J555YY?Y7Y5P??7JB!..?~^~Y577!YY777!?5P5YPYY7YJ?^~J!?PGG5PP5?5GPJ: .7!7J5PP7:~55Y!. //
// ~??Y^~JJY7~J?Y5P5YJP55G~:JJ^?PP?:^!J7~7YJJJ7?JGG?:~Y~:~G57J?PG55PJ?5~. ^?7!JJPY^ :Y55?. //
// .??JYJJY?J~!7!?5P5J55J?5YYPYPGJ5PJJYJ:7:?JJ:!?!G5!^^7!!!P~:JJPG5Y7^.?! .!7!7Y5Y~. .?55Y^ //
// :!?J?J5GGGP5J57?J!77YP5YJJ5YPPYYYJJY5?JYJ?Y7J~7??P!~?Y5YYY?^^PPPY7^...!P: :?7!?557. .7555!. //
// ~?7?7?JPB5?Y577J577755?5JYY?PPYYY5YJYGBPYGJ~~JJJYP7~7GG5PG5JJP5J!77 ^:~YY??JY5P5~ ^JP5J^ //
// ~7?J??555Y?YYYY??JJ5PY7J55GP5P5P5JJJJG5JYPY7YGY?7??Y5555GGG5YJPY7JJ!^.???JYGPP5?. .!5Y5! //
// :!!J7!7??JYYPJ?Y55P5YYJJJYYJP55J5P??PY?Y55J77PBPY??Y5PJ55PGPY?7Y5?^:J7!P5YPGP?J~YY: !YYP^ //
// .^?~:^~~?77?JJ?JY5PYYP5YYJ??5?YJJJ?JYJ??PY7?5PPGBG?J5P!GG5GPJ??J5J^ :555JYGG5!YY77Y: 7JYY. //
// ~!:^^7~755J5J?JY55555PPGGYYY7J~!?55!!JP5?PPYYYGGPPYJ~YPPGP?7J5Y7~::5P?JGGGJY!Y?!JJ?: :~!. //
// .?7J5YYGYYY5JPPGGPYYYP5GJ?J5YPPPYJ555Y?!P5???5Y?GY!~7YBG5Y!55?~^:.~YJPGG5JY:J7^?^?7 //
// ?!?555?~7JJ?YPYJJYP5PPP55PP5JPJ5PJJ5P7?5?!!!J~~Y55J77Y?~J5PYJ?7!7^^PGBYYJY~?..!!?Y. //
// ~!~?Y!.^~7J5PP5PP5PGB5PJ7Y5P55Y5PP5G57Y5!^^~~.:J?YY^!Y~!?JB55!77^7!PG55YJ7?~.^ :5^ //
// ^77~:^~!??JJYJP5JPBP557?5Y5PPPGPPGBPJJP?..::^??~!??5YYJ7JGJJ^~~~7?GB5J7~?7.:..~?5^ //
// ^7~^::...:^~!?7!7P5Y5PYY5Y55Y?5PPPGP?YY57^?Y5JJ^.:~5Y5J??J557?JJ!YGP~~?~!^ :7?7Y^:. //
// .:^~~~!?!!~^^^J?PPJYY57?5??JYYY5P5Y7Y?5YYPP?JY!:?JPG?~YJ55Y5GP5PGJ~^!7?!~7J?!77~!7?^ //
// .J:..:!7^:PY?5~!7YYYJY5YPP5Y!YJYYJJYJY77J??YJ??YP5YYYJ55YJYYJJYJJJYJ~^^~7^^~Y? .:^: //
// ~!!!~: ^?!!?..7777JP5PYY5^5PPP5PP?!Y:.~?J?YYJY5Y?~?5?^...:?Y7^^^^7J55?J7?~. ^?~^77 //
// .^!?^ ....!JJP?YYJJGP5P5J:.!Y!^7JJ?J5P555Y55Y?7!!!!7!!?Y?~!JJYP?. .7Y^. :5. //
// ^?!!7PY7?YYY!!?^. :~?J7?J?YYPPPPJ!~75JJJJYY5YJJ57 ..^^~?7.:JJ^^..^Y. //
// :^^~~^. ~!:. :7?7?J5Y77YGBGG5J??77JYYJ?J5?!~!P~:^::^~?JY7~!~:^?? //
// .^7?J5GGG5^^J5GGJJP?YJ?7JY5J7JPGYY5PY~77~7?JJ!!??7??Y: //
// :!J??5PY?PG5J~JP5~~?PGPYY!~^^!?55?~^!5GJJYJJPY77J555Y5!:.. :~^:. //
// :~?JJJ55?^.?B5??YGP^ ~Y5YY?YJ?!^:~Y! .^75GGG5YPJ5JYY?7~~~!!77: ^~!J^~?J~ //
// .~?YJJ55J~. ^GGY?GJGP^!5JJ7^?!?PPJ!?! .:~7J5GBBBGPGBPY?!~^:..:!?Y. !?^:. .:?P: .^~~. //
// .^7JYJYPPJ^ JG5J?G?YG5P?7YY~7JJJ5GGYY7~!?Y5PBBBGGGGGG5Y?!~^:~?7JY?7!?J:..:^^!?B!7J!^7Y. //
// .:!JYJ7J5PGJ: ~G5Y?JB!?G5YJJYPYPY??5YJYPY:^~7?J5BGY5GPY5555YYY55YYYY^:7?:^^~!?YYPGJ5^:~~5!. //
// :^~~!?Y55PPPGGG5~ :5G55PGB~~YBP?!?PPJ7?^7Y555^.:~^^~?5JJYPY7JYYJ5BY~:::~?~^!7?~7J55P?~!!~!?555J?7: //
// ~5YJJJYJJJ?YGGG7. :~: ?G55GG?P!:!5PGJ~^7JY7^~~!JY.....:~JP!?7?J^?~5G5YJ~^~^^:^7Y?JJ5BGJ7!!J?77PGY7~:~Y~.:~7J7. //
// .^^^^:.. .!PPP7 ^5J?7?5~!7G5.?J.^?PGGY7^^!Y7^~~J7 :~!JY7??~~^~~7~JBB5Y5J777!^^5G5J7?5YJPPYYJ5P!~^:::7P??7J5Y. //
// ^JPGP! ~PPJYPY~~?P7 ^5~:!YGPG5?!^^7?~~J!.!Y555P??5?^:.:.:7GBGYPG5Y55?JJG7^!!J5PJ!^::^!!!::Y5Y7~?J7P! //
// :?55GY^ .?BGGP5J?JP^!5JY7~75PPPPJ?!:?77JJJPPJJ55PJY5?7^:^^!5YJ?J5PPP55Y55YJ!!YG7::. :^^7J5G?^~JYJ~Y? //
// .75Y5P7. 7GBGGGPGP?P7!7J?~?55GBPPY~~P??JJPP5Y5PG5JYYP?!^!5PPG55YYYYJJJJ?YJYY5GJ!^^~!?77!^?J:!YYJ!7J^ //
// .~YY5PJ^ .~7YY?7!!!777!!!7Y?~?5GBGBG?~G5?!!!7JYGBPJYY!~!7J5G5J?7~~!7?7J77!~!JGYJ~!??!^!5YYYY~7Y557:J! //
// ^JYYP5!. .^7?7!~!7?JJJ????7!77YY!!5BBBB5!PJ7!^:...~J???!!?5PYY5!:.. ..^~!^:..7GY~7~^7J!?JG5J7!?Y55J!:J~ //
// .^?YJ5P?: :!7!!!?Y555YYY5YY55P5YY5GG7!5GGBGJGY?7~^::^!7J77?75GGPJ??!:. .: !Y?~7!?5PBBBP5J?J555Y?!~??. //
// :!JJ?YPJ: .~??77JYYYYJJJJJJYYY555YYJY5BB?!5PGGPPY5YYY77!!J?!5JJYG5Y?7~^^^~~^~~^~^:~J^!~?!^~!7J5PGGP5YJ?7???~ //
// .~?55YYP5~ ?5JJ55YJ??7~~~!^^~~!!7?J55YJ?PG775~75G5G57Y5!7J5~?J?7~?Y!:.....^Y755YP55J7~^~!J55?!!!7JPBG5J??J?!^. //
// .^?YYYY5J7^. ~?????7!~!7!!!??77!^^^~!7JY5J!J5J57?YPJJG!7P^!5Y?Y?77~:~!^^~!7^7YY55PPPGPJ?7~^!JPJ~::~!!JPY?7~^^!Y?^ //
// ^???J?J?!: ^5P5JY?!^~!J5!.:!YJ^YG7:^YPPJ^?PJ^?YY?7~::...:Y~YJP5PPP5YYY77?7:?PJ!^. .~7JG5YJ5J7^.. //
// ~J77!^. 75YY57JJ??~!!.^!Y7.7PJ??Y75J?55P!J5YYJ?!~:. 7^?J55P555YYY!?5555Y7^:. 7!YPJ7?J7. //
// .?YJ57??PY^^~!!?Y57!7JPG5!7PP??BGPGGGPY?~: .?:?P55PYYYJ7?P5PPPG5J!:. ^?7PJJ7?7. //
// .J5Y5!~55?J7~!?JY~!J5GBBGGP5JJPBG?~7YJ!: .!~^!7!YJ77!~~:~5BYJBB57~:. 7!7GPYJ7: //
// :5G?J5J5^755555~ .:!PBBBGPY7^:JB57^^??^.!Y~..::.!!~::.. ?BY5BB5?~:.:!7^Y5PJ!!J7. //
// .:^^:. !GPYJ55..^!?YY7^^~?GBGPY55Y~^JYY5J!^~!75G5Y5Y?:.^:. .7?J5PP5J!^..?^^?G5P57^:7?. //
// .JYY!7?7~JY5??5~:^^~!?P5?JYP?!??JJ5JJ?7?JP5J?~^:^^^~7Y?7^:..:^JJ!~??7?5Y7^:?!J57PJ5J!^.7?. //
// :G?!:^.:!J5YYPG5!!!7??5GYJJYY5GBG5J!!^!JYJ7P55YJ?7!7?YPG5YJ?7!7?J?7?5GJ:?JJ5YJ^ ~YJYY7~:!J^. //
// ?P:!?~. :JYYY5P55555PP?7?!?Y5PPYYP??7Y5J~!J!YBJ????J5PY??YY?!!!?J??7YJ..^~^: .~?Y5Y7^!YY7. //
// :J!:??7^^!!JPJYY5YP5557JY?~J5Y!YJ5JYJY?!!YYY5!7JJ?7~~~~~~!777!7Y7!JJ5PJ7. .:^~!777~. //
// :!??77~~7?7J7JYP?:^?YGBPGP5J7?!7J7Y^!5Y?P5?7?7?!^!7^:.~7?JJJ?!!!J7!?J57J77J^ //
// ~Y~:~~!7!!~~7J?7!?7.75PB5?YGP5?!7!J!77JGGP5Y?~!?:^^::.^J??!J5P55PP5JYYG5J7!Y: //
// 757!^:.!JJ??77?J7!J?~JYPGP55GB5?7~: ..:!PPPY?!^!7?YYJ55?~:^YPG5YYY57J?5YY?7^ //
// .^!7J5?7^^~~:::~?5YYJ7?YPB5!?BGY7: .::::!GGY7^..!5~~?P7!:^?YY?!J!?JJ5Y7?^. //
// .YJ!!^:!77!^:!7:~JJ?J5GP5BB57: .^^~!~YGJ!:..57 :?J~~?5?!. ^!7??!::. //
// .^!7J!:.~JY7!!!?J5PJ?Y5GBBP?: .!??Y!5P?^:??J. ~7!~: //
// .^!7~^7?7??5PYJJJ7YPBBBJ^ :!??~PY!: JJ. //
// .^7???YYJ~~^!5Y7JPBBP7^.:77!~7Y..:Y^ //
// ..?P!!~!~7?YY?77PB5J~?^:~!J577!^ //
// ~J!!!~~!~~~?Y!75BB5?..^!57. //
// .::::::^~~~!7J?JPGGY?YPBJ: //
// :?J?JJPPGGGBP7. //
// :?YJ?5P5555G! //
// ~Y?!7JY5JP? //
// :??7!7?J5J~. //
// .!5PPJ???JJ~. //
// :JGG5?JJ?JJ: //
// ^YG5J??^YJ //
// .~PGJ!!?P. //
// .:::....:?BJ:^7P^ //
// .Y5Y55YJ?JPG^:~!5? //
// 7555Y5YJYP5~^~JYP^ //
// :~?5G5JY5GYJ!?Y5P^ //
// :JPGGGGPYP?J?5P~ //
// :~!7JP5GGYJJ5G?. //
// .^75B5Y5YP5!. //
// .~YPP5YYP57: //
// .^JP55YY5PJ~.. //
// :?5PP5YJ55J?!~:. //
// .~?5P55JJJJJJJ7. //
// .~JPPP555J7?J!: //
// //
// //
// //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
contract RHKMBUNGA is ERC1155Creator {
constructor() ERC1155Creator() {}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @author: manifold.xyz
import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";
contract ERC1155Creator is Proxy {
constructor() {
assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4;
Address.functionDelegateCall(
0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4,
abi.encodeWithSignature("initialize()")
);
}
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation address.
*/
function implementation() public view returns (address) {
return _implementation();
}
function _implementation() internal override view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
pragma solidity ^0.8.0;
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback() external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive() external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overridden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "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");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(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) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason 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 {
// 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
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/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly {
r.slot := slot
}
}
}