Address Contract Verified
Address
0x1061b6e1f81eEBFeC1E0fEd38c46AB17869E7614
Balance
0 ETH
Nonce
1
Code Size
298 bytes
Creator
0x38C3b803...e0e5 at tx 0x887dd2c5...04528c
Proxy
EIP-1967 Proxy Implementation: 0x5133522e...D4b6
Indexed Transactions
0
Contract Bytecode
298 bytes
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
Verified Source Code Full Match
Compiler: v0.8.17+commit.8df45f5f
EVM: london
Optimization: Yes (300 runs)
seald.sol 124 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title: Sealed
/// @author: manifold.xyz
import "./manifold/ERC721Creator.sol";
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// //
// //
// //
// //
// //
// //
// ` ` //
// ` ` //
// ` ` ` ` ` ` ` //
// ` ` ` //
// ` ` //
// ` ` ` ` //
// ` ` ` ` ` ` ` //
// ` //
// ` ` ` .., ...J&dXppWk, //
// ` ` ` ` MMMN, .(Xppppppppppppp[ //
// ` ` ` ` .MMMM\ ..WppppppppppppppppR //
// ` ` ` ` ` (MMMM: .pppppppppppppppppppP //
// ` ` ` ` dMMM# .dppfppppfppfppppppppW! //
// ` ` .MMMMF.ppppppfpppppppfppfppW> //
// ` ` ` ` .MMMMbWppppppppfppfpppppppV! //
// ` ` `JMMMMHpppfppfpppppppppfpV= //
// ` ` ` ` ` MMMMMpppppppppppfppfpWY! //
// ` ` ` ` ` ` .....(+ggQQkWHHHHHHkkQmgagJ-MMMMMpppfppfppfpppUY! //
// ` ` ` ` ` ....+QWgmgggggggggmggggggggggggggggggmmmmgmmmmqHWWKY""?` //
// ` ...JgWgmmggggmgmmmmgmmmmmmmmmmmmmmmmmmmmmmmmgmggmmgmgmmmmmmmmmJ. //
// ` ` ` ` .(dmmmggggmmmmmmmmmggmgmgmgmggmgmgmggmgmggmggmgmmgmmgmmgmggmggmggmgggH+, //
// ` ` ` ` ` ..&WgggmmmmmmmmgmgmgmggmmgmmgmgmgmmgmgmgmmgmgmmgmmgmgmmgmgmgmmgmgmmgmmgmgggmggH+, //
// ` ` ` ` ` ` .gmmmmmmmgggggmgmgmgmgmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmgmgmmgmmgmmgmmmmmgmmmmmmm.. //
// ` ` ..dgmmmgmggmmmmmmgmgmmgmmgmmgmgmgmgmgmgmgmmgmgmgmgmmgmgmgmgmgmgmmgmmgmgmgmgmgmggmgmgmgmmmmggHa, //
// ` ` `.(WmmmgmggmgmggmgmgmmgmgmgmgmgmmgmgmgmgmgmgmgmmgmgmgmgmmgmgmgmgmgmgmmgmmgmgmgmgmgmmgmgmgmgggmmmgggH&. //
// ` .XmgHY=<<?7Wmmmmmgmgmgmmgmgmgmgmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmmgmgmgmmgmmgmmgmmgmmgmmgmmgmmgmmmgggm, //
// ` ` ` `.(HgmH$~~~~~~:~?WgmgmmgmmgmmgmmgmmgmgmgmgmgmgmgmgmgmgmgmmgmgmgmgmmgmgmgmgmgmgmgmgmgmgmgmgmmgmgmmgmgmmgmmmgggH, //
// ` ` .JgggmgD~:~:~:~~:~(mgmgmmgmgmgmgmmgmmgmgmgmgmgmgmgmgmgmgmgmmgmgmgmgmmgmgmmgmmgmgmgmgmgmgmgmgmmgmgmmgmgmmgmmmmmgmH, //
// ` ` ` .Jgmmmmgmr~~:~~:~~~_dmmgmgmmgmgmgmgmgmgmmgmmgmmgmmgmmgmmgmmgmgmmgmmgmgmmgmgmmgmmgmmgmmgmmgmmgmgmmgmgmmgmgmggmgmmmmmgh, //
// ` ` ` .JggmggmgmmH-~~~:~~:(jmmgmmgmgmmgmmgmgmgmgmmgmgmgmgmgmgmgmgmgmgmgmmgmmgmgmmgmgmgmgmgmmgmgmgmgmmgmgmmgmgmmgmmmgmgggmgmmgmn //
// ` .mgmmmgmgmgmgmmJ-(((+WmmgmgmmgmgmmgmmgmmgmmgmmgmgmgmgmgmgmgmgmmgmmgmgmgmmgmgmmgmmgmgmgmmgmgmgmgmmgmgmmgmgmgmgmmgmmmgmgmmmgH, //
// ` ` .Xmgmmgmmgmmgmmggmmmmmmmgmmgmgmmgmgmgmgmgmmgmgmgmmgmmgmmgmmgmmgmgmgmmgmgmgmmgmgmmgmmgmmgmgmmgmmgmgmmgmgmmgmgmgmgmmgmgmmggmgmggn //
// ` .gmmgmgmgmgmgmgmmgmgmgmgmgmgmmgmgmmgmmgmgmgmmgmgmgmmgmgmgmgmgmgmgmgmgmmgmmgmgmmgmgmgmgmgmgmgmmgmmgmgmmgmgmmgmmgmmgmmgmgmmgmmgmmgh. //
// ` ` ` .dmmgmmgmgmgmgmgmgmmgmgmgmgmgmgmmgmgmmgmmgmmgmgmmgmmgmmgmgmgmgmgmmgmmgmgmgmgmgmgmmgmgmgmgmmgmmgmgmgmmgmgmmgmgmgmmgmgmgmmgmgmgmmgmmmH, //
// ` .HmmgmgmmgmmgmmgmmgmgmmgmmgmmgmmgmmgmgmgmgmgmmgmgmmgmgmgmmgmmgmmgmgmgmmgmgmgmmgmmgmmgmmgmmgmmgmmgmgmgmmgmgmmgmgmgmmgmgmgmmgmgmgmggmgmH, //
// ` ` ` .jmmmgmgmgmgmgmgmgmgmgmgmmgmgmgmgmgmgmmgmmgmgmgmmgmgmmgmgmgmmgmgmgmgmgmgmmgmmgmgmgmgmgmgmmgmgmgmgmmgmmgmgmmgmgmmgmmgmmgmmgmgmmgmmgmmgmggH. //
// ` ` .dmmgmmgmmgmmgmgmgmgmmgmmgmmgmgmgmgmgmgmmgmmgmmgmgmmgmgmmgmmgmmgmgmmgmmgmgmgmgmgmgmgmgmgmgmmgmgmgmgmgmgmgmgmmgmgmmgmgmgmgmmgmgmmgmmgmmgmggN. //
// ` .dmmgmgmgmgmgmmgmmgmmgmmgmgmgmmgmmgmmgmmgmgmgmgmmgmgmmgmgmmgmgmgmmgmgmgmmgmgmgmmgmmgmmgmmgmgmmgmmgmmgmgmmgmmgmmgmgmmgmgmgmgmmgmgmgmgmgmmmmggb //
// ` ` dgmgmgmgmgmgmgmgmgmgmgmgmgmgmgmmgmgmgmgmmgmgmgmgmmgmgmmgmgmmgmgmgmmgmgmgmmgmmgmgmgmgmgmgmmgmgmgmgmgmmgmgmmgmgmgmmgmgmmgmmgmgmmgmgmgmgmggmgmgM[ //
// .gmgmmgmmgmmgmmgmgmgmgmgmmgmmgmgmmgmgmgmgmmgmmgmmgmmgmgmmgmgmHHHHHHHHHHHHmgmgmmgmgmgmgmgmgmmgmgmgmgmgmmgmgmmgmgmgmmgmgmmgmmgmgmmgmmgmmgmmgmmMMN. //
// ` ` .HgmmgmmgmgmgmgmmgmmgmmgmgmmgmmgmgmmgmmgmmgmgmgmgHHB99TTC1=???????????????=?=zOTTUWHHmmgmmgmgmmgmmgmmgmgmmgmgmmgmmgmmgmgmgmgmmgmgmgmmgmmgmmgMMMMb //
// ` ` ` ` JgmgmgmgmgmgmgmgmgmgmgmmgmgmgmgmmgmgmgmmgmHW9TC1?????????=???=??=????????????=??=????==zTTWHmgmmgmgmgmgmgmmgmgmmgmgmgmmgmmgmgmmgmgmgmgmgmgmgMMMMN. //
// .gmgmgmgmmgmmgmmgmmgmgmgmmgmgmgmgmmgmgHW9C1???????=?=??=???=<??=??=?==??==?=??=???=??1???????1zTTHmmgmmgmmgmmgmgmmgmgmgmmgmmgmgmmgmmgmmgmgmgMMMMMMb //
// ` dmgmmgmmgmmgmgmgmgmmgmmgmgmmgmmgmgHBYI??????<!` ?=??=?=?=??>(???=?????=?????=???=??=?_????=???????1ZWmgmgmgmgmmgmgmmgmmgmgmgmmgmgmgmmgmmgmgMMMMNMMN. //
// ` .mmgmgmgmgmgmgmgmgmgmgmgmgmgmmgmH9C???=?=?=?> ``.=??????=??>`(=???=?=???=???=???=?????~`(=??=?=??=??=?zTHgmmgmgmmgmgmmgmmgmgmgmmgmgmgmgmgmNMMMMMMNMM] //
// ` JmgmgmgmgmgmmgmmgmmgmmgmmgmmgH96=??=?????=<`````.??=?=????<``(?=???=?=??=?<1?=?=??==??~``(???=??=??=??<??vWHmgmgmmgmgmgmgmmgmmgmmgmmgmmggNMMMMNMMMMMb //
// ` ` dmmgmmgmmgmgmmgmgmgmgmgmgmgH91???=??=?=??>``````.???=?=??=:``(??=?????=??=!<??=??????=~```(?=?????=???_.<??zWHmgmgmmgmmgmgmmgmgmgmgmmggNMMMMNMMMNMMMN //
// ` .HmmgmgmgmmgmgmmgmgmgmgmgmH91??<<`(????=?!```````.=?????=?< ``(??=??=???=?< (=??=?=??=?_````(??=??=??=< `` <??zWmgmgmmgmmgmgmmgmgmgmggNMMMMMMMMMMMNMMM_ //
// ` .mmgmgmgmgmmgmgmmgmmgmmgm8C??<! ``.??=??>````````.?==?=??=:```.?=??=?=???=:` +????=???<````` <???=????:````` <??vWmmgmgmgmmgmgmmgmmHNMMMMMNMNMMNMMMMNM{ //
// ` ` (gmmgmmgmmgmmgmgmgmgmgmH9???<`````.==??>``````````<????=?<```` <??=????=?<_``(?=???=??:`````` 1?=??=?<````````-<??XHmgmgmgmmgmggHNMMMMMNMMMMMMMMNMMMMM[ //
// JmgmgmgmgmgmgmmgmmgmgmH6???>``````.=??<````.``````.=?=???!`````(????=?=??!````<=?=???<````````(???=?<```````````_1?zWNNNNNNNMMMMMMMMMNMMMNMMNMMMMMNMMM] //
// ` JgmgmgmgmgmgmgmmgmmgmH3??=:``````` ???:``````.`````(??=?>`````` <??=????!````` <??=?<~```````` <=??<``````````````(?=dMMMMMMMMMMMNMMMMMMMMNMMNMMMMNMMN] //
// ` JmmmgmmgmmgmmgmgmgmmHC??=>`````.```_<!``````````````(??<````````.1??=?=:``````` 1??<~``````````.<?<````````````````.1?dMMMMMMMMNMMMNMMNMMMMMMMNMMNMMMM] //
// ` ` ` (ggmgmgmgmgmgmgmgmgHC???>````````````````.``````````` ``` ```````.1??=:````````` !`````````````````````````````````` 1?dMMMNMMNMMMMMNMMNMMNMMMMMMMMMMMF //
// ,gmgmgmgmgmgmmgmmgH6???<````.``.``.````````.``.````````````````````_~```````````````````````````````````.```````````` 1?dMMMMNMMMNMMMMMMMNMMNMMNMMNMMN] //
// ` ,mmgmmgmmgmmgmmgmmD??=<~`````````.````.`````````````````````````````````````````````````````.``.`````.````.``.``.`````.1=MMMMMMMMMNMMNMMNMMMMMMMNMMMMM% //
// .mmgmgmgmmgmgmgmgH1???:``.`.`..````.``...ggJ,.``.``````````````````````````````````````````...JJ,..`.``.```.``.``.`.```(?zMNMMNMMNMMMMMMMMMNMNMMMMMNMM! //
// ` ` Hmmgmgmgmmgmgmmg$?=?<``.```.``.`.``.`.MNNNMMp````.``.```````````````````````````````````..jNNNNNN/```.`.`.``.``.```.`` 1?dMMMMNMMMMNMNMMMMMMMNMMNMMMM //
// ` ` WmgmmgmmgmmgmgmHI??=!``.`.`.`......`.NNNNNNNM;`.```````````````````````````````````````` jNNNNNNNN-.``.`..`.`.``.``.```(??MMMMMMMNMMMMNMNMMMMMMMMMNM# //
// ` JmgmgmgmgmgmmgmK???>`.`..`...``.`.`.MNNMNNNNNF.```.`````````````````````````````````.`.`.NNNNMNNNN]....`...`...`..``.``.??dMMNMMNMMMMMMMMNMNMMNMMMMN% //
// ` .gmgmgmgmgmgmmgD?=?!.`..`..........-NNNNMNMNNF``.``.``.````````````````````````````````.jNNNNNNMNNb.............`...`.`.<?=MMMMNMMMNMMMMMMMMMNMMNMM#` //
// ` 4mmgmmgmmgmgmm$??<..`.............(NNNNNNNNN%.``.``````.``````````````````````.``.`.``.dNNMNNNNNNF................`..`.(??dMMMMMMNMNMNMMMNMMMMMMMM% //
// ` ,mgmgmmgmmgmgmI??:`...............(NNMNNMNNM!..``.`.`````.``````````````````.`````.`.` MNNNMNNMNNt..................`.`(??dMMNMMMMMMMMNMMMMNMMNMM# //
// .HmmgmgmgmmgmmI??~.........~~.~~~.(MNNNNNNN@....``.`.``````.````````````````````.````..dNNNNNNNM#~~.~.~~.~.............(?=dMMMNMMMMMMMMMNMMMMMNMM% //
// ` ` ` jgmmgmgmgmgmmI??_......~~.~~~~~~~~dNNMNNM#!..`..```.`.````````````````````.`````.`.``.JNNMNNMNND~.~~~~~~~~~~~.........(=?dMMMMNMNMNMNMMMMNMMMMMF //
// ` ` MgmmgmmgmmgmI??_....~~.~~~.~~.~~~(HNNNN#!....`..`.```.``.``````````````````.`.``.`..`-WNNNNNM@~~~~~.~~.~~~~~~~~......(??dMNMMMMMMMMMMNMMMNMNM@ //
// ,MmmgmgmgmmgI?<...~.~~~.~~~~.~~~~~~?YY^.......`.``.````````````````````.``````.```....-7MMMB=~~~.~~~.~~~.~.~~.~......(??dMMMNMMMNMNMMMMMMMMM#! //
// ` ` ` ?NgmgmgmgmmR?<~..~..~~~~.~~~~.~~~~~~~~~.......`.``.`.```.````````````````.```.``.`......~~.~~~.~~~~~~~.~~~~.~~.~....+?jMMMMMNMMMMMMNMMNMMNM' //
// WNHmgmmggmK??_..~~.~.~~~~~~~~.~.~~~..~.~....`..``.````.```````````````````.``.`..`.......~~.~~~.~.~~.~~~~~~~.~~..._??dMMNMMMMNMMMMMNMMNMM' //
// MMNgmmmgmHz?_...~.~~~~.~.~~~~~~.~~~..~.....`.`.``.``````````````````.`````.```.`.......~.~~~~~~~~.~~~~.~.~~..~~..(?1MMMMNMMMMNMNMMMMMMM' //
// ` ` ` ` .MMMNgmmgmZ?<...~..~~~~~~.~.~~~~.~.~........`.``.```.`````````````````.````.``.``......~.~~.~.~~~~~~~.~~~~~~...._?=dMMMMMNMMMMMMMNMMN@` //
// ` ` .MMMNHgmmR?<..~.~..~.~~~~~~.~.~~.~.~......`.``.``.-____-----.......````.```.`..`.......~..~~~.~~.~~.~~~~..~~...(?jMMMNMMMNMMNMMMMNMY //
// ` WMMMNgmmy<.....~~.~..~~.~~.~.~..~......`.``.``.(;;;;;;:;;;;;;;;;;;_````.````.`.`......~.~~~~~.~~~~~~.~.....~_+1dMMMMMMMMMMMNMMMM^ //
// ` WMMMNNmHz_......~.~...~.~.~..~........``.`````(;::;::;::;;:;::;;;~`````.`.``.`........~....~~.~..~..~~.~.._+?dMMMNMMNMMNMMMNM@` //
// ` ` ` 7MMMMMNR<.........~.~...~...........`.``.`.``(;:;;:;;;:;:;;;:;:;_`.`````.``.``..........~..~..~..~.......(1dMMMMMNMMMNMMMMM= //
// ` ,MMMMMNR<........................``.``.````` ;;:;;:;:;;:;:;;:;< ````.```.```.``...............~........(1dMMNMMMMMMMMMNMY //
// ` ` 7MMMMMN-`....................``.```.```````_;:;:;:;;:;:;:;;:~``````````.`.``.``.....................(uMMMMMNMMNMNMMM" //
// ` ` TMMNMN,.`...............```.``.`````.``.``_;:;;:;:;;;:;:<``````.````````.``.``..`............... (dMMMMNMMMNMMMM" //
// ` ` ` .TMMMMe````.``.`.``.````.``.``.``````````` <:;;:;:;:;<~``````````.```````.`````.`..`......`.`..jdMMMMMMNMMMMM" //
// TMMMN,.```````````.``.```````.``.````````` _~~~~_ ``````````````.``.````.`.`````````````` (dMMMMMNMMMMM#^ //
// ` ` ?HMMN, `..`..`.``.```````````````````````````````````````````````````.```.`.``.`.``.`..MMMMMMMMMNMM"` //
// ` ` ` .TMMNa, ``````````.``.```````````````````````````````````````````.````````.``.``..gMMMMMMNMMNMB^ //
// ` ?TMMMN,.``````````````````````````````````````````````````````````````````.-kMMMMMMNMMM#"! //
// ` ` ?TMMNg.. ````.`````````````````````````````````````````````````.` .(gMMMMMMMMMMB"! //
// ` ` ` ` ` _7WMMNaJ...````.``````````````````````````````````````` ..(gMMMMMMMMMH9"! //
// ` ?""MMMNag-....`````````````````````````. ....JgNMMMMMMMMH9"7` //
// ` ` _?"""HMMM#NHmmgggg+JJ+++&gggggHMMMMMH"""""7! //
// ` //
// ` ` ` ` //
// ` ` ` ` //
// ` ` ` //
// ` ` //
// ` ` ` ` ` //
// ` ` ` //
// ` ` //
// ` ` ` ` //
// ` ` ` ` //
// ` ` ` ` //
// ` //
// //
// //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
contract seald is ERC721Creator {
constructor() ERC721Creator("Sealed", "seald") {}
}
ERC721Creator.sol 38 lines
// 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 ERC721Creator is Proxy {
constructor(string memory name, string memory symbol) {
assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6;
(bool success, ) = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6.delegatecall(abi.encodeWithSignature("initialize(string,string)", name, symbol));
require(success, "Initialization failed");
}
/**
* @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;
}
}
Proxy.sol 86 lines
// 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 {}
}
Address.sol 244 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
StorageSlot.sol 138 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
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:
* ```solidity
* 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`, `uint256`._
* _Available since v4.9 for `string`, `bytes`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct StringSlot {
string value;
}
struct BytesSlot {
bytes value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` with member `value` located at `slot`.
*/
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` representation of the string storage pointer `store`.
*/
function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
/**
* @dev Returns an `BytesSlot` with member `value` located at `slot`.
*/
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
*/
function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
}
Read Contract
implementation 0x5c60da1b → address
Recent Transactions
No transactions found for this address