Contract Source Code:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title: Glory to Ukraine
/// @author: manifold.xyz
import "./ERC721Creator.sol";
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// //
// kkkkkkkkkkkkkkkkkxo:;'':oxxc,,,''.';l:'.';;::c::;,;::cdkOOOxl;;;;cdkxlccx0000000000000000000000xollccldkOkkkOOkdoldkkkdlcoolc;;;,;odddddddolcccloxxxxx //
// kxkkxxxxxxxxxxxxxo:,'.':oxl'...''..,:,...',::;,;;,''''':lodlc:;;;:ldkxooxOOOOkkkxxxxxxxkkkkkkkxdoooc:ldooxkkkOkxdooxkkkdloddolldoccdddddo:;;,.,:;:ldxx //
// kkkxxxxxxxxxxxxxdl;'..,cdd;...'''.',;'...';cc;',;:;;,;;:ldxxdlcc:::cllc:cloooddxxxkkkOOOOOOOOOOOOkd::ldl;ckkkOkkxxddxkkxdddlcloOKxlodddl,;ldl,cxd:,cxx //
// kkxxxxxxxxxxxxxxdc,'.':ldc'...,,'..',....':loc;;:;,,;:clodxxxxdoc;'.';ldxkOOO0000OOOOO000000000KK0xdoddl:lkOOOkkkkkxxkkkkxdl;cox0Ooldxd:'lxd:.,odd;;dx //
// kkkxxxxxxxxxxxxxl:,..,:oo;...','...''....':odolc:'..;:ldxxkkkkkdc,'',oO000OOOOOOOOOOOOO0000OOOOkkxddddl:cdOOOOkkkkkkkkkkkkko::oxO0xloxdc';:;,.';::,:dx //
// kkkxxxxxxxxxxxxdc;,..,cdl,...,,...',;'.'',coddool:,:oxkkkOOOOOOx:,,;;cx000000OOOOO0OOkO00OOkxxxdxxkkkkxdxxdxxkkkkkkkkkkkOOkdc;coxOkoldxdc'.:l,;l;';oxx //
// kkkxxkkxxxxxxxxoc;'.',cdc'...'...',;:;,:::lddolloollxkOOOOOOkkxoc::;,;lk00OkkkxkkkkkkkOOOkkOOOOOOO000K000OxooooodddddxxxkOkoc;;lxxo:;lxxxoc::;;:clxxxk //
// kkkkkkkxxxxxxxdc,,;:cclc,'cc'...',;:::;colodxoccdocldkkxdoooollloddddxOOOOOOOOOOOkkkkOOOOOOOOOOOOOO00000KK0OOOkxxddoooodxkOdlllkKK0xc:oxxxxxxxxxxxxxkk //
// kkkkkkkkkxxxxd:,;loolc;'':xx:...';cll::ldodxxo;:lc,,:cc:cclodxxxO00KK00kxkOOOOOkkkkkkkkkkkOOOOO000000000KK00KKKKK000Okxxddddodk0KKKKx:lxxxxxxkkkkkkkkk //
// kkkkkkkkkxxxxxl,;;;;:lo:;lkkc...,:loo:;odxxxo:',,;;clodxxxddxxxddkkkkkkxkO000OOOOOOOOOO0000000000K0000KKKKKKKK000KKKKKK00Okdooddxxxd:;lxxxxxkkkkkkkkkk //
// kkkkkkkkxxxxdl:,;clxO0Od:lxko,.',coxo;:oolc:;;:loxkkOkkxxxxxkOOOOOOO00000000000000OOOOOOOOO000000000000000K00OdccdKKKKKKKKKK0Okxdol:;cdxxxxkkkkkkkkkkk //
// kkkkkkkkkxxxc'';ccokxlldocokxc,;coxxc;;;;:coxkOOOkkkOOOO0000000000000000000000OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOko;..;kKKKKKKKXXKKKK00Oxlldkkkkkkkkkkkkkkk //
// kkkkkkkkkxxxo;',;clddodOk::dkdccllc:;:coxkOOOOOO0000KKKKKKK00000000000OOOOOOOOOOkkkkkxxxxxxxxxxxxxxxxxxxxkxxo:'...l0KKKKKKXXXXXXKKKxldkkkkkkkkkkkkkkkk //
// kkkkkkkkkkkkxl,,cdddxkxxdccdkxl:cccoxkkkkkOO00KKKKKKKKKKKKK00000000OOOkkkxxxxddoolllllcccccllooollllloooddooc;''..,xKK00O0XXXXXXXXXOdxkkkkkkkkkkkkkkkk //
// kkkkkkkkkkkkkxl;cdxoccldkkkkxoodxkOOOOOOO00KKKKKKKKKKKKKK000000OOOkkxxdoollccc::;;;,,,,,,,;;:ccc::;;;:ccllll:,'....cOK0Ok0XXXXXXXXX0xxkkkkkkkkkkkkkkkk //
// kkkkkkkkkkkkkkd:,:cclok00kxxxk000OOkO00KKKKKKOkxO0000000000OOOkxxdoollcc::;;;,,,,,,,,,,,,,;:lodddddddxxkkOkxl:,'...,xK0xokKXXXKKXXKOxxkkkkkkkkkkkkkkkk //
// kkkkkkkkkkxdolc::ldddk0OxdkO000OkkO00KKKKK0ko:',cxOO000000OOkxdollc:;;;;;;;;,,,;;;;;;:cllodk0KKXXKKKKKKK00Oxdc,,''.'l0OocdKXXXKKKK0kxxkkkkkkkkkkkkkkkk //
// kkkkkkkkko:;;:lodxxoodooxO000kxxk0KXXXK00ko:,''',:lok00000Okxdoooddolc:coolllccloooooxO000KXXXKKKKK0000Okdc;,;;,'''.:k0d:o0XXXK000Oxxxkkkkkkkkkkkkkkkk //
// kkkkkkkkko::loolldxolcoxOOkxodk0XXXXXX0kxc''',''''';ok00000OOkO00KKKK0OO00000Oxxddoodk0KKKKKKK00OO00O000Odll:,,,'''.,d0xllOXXXX0OOkxdxkkkkkkkkkkkkkkkk //
// kkkkkkkkkxlodxxolooloodolllokKXXXXXXXXKd;'.'',,''..'ck0KKKKK000KKKKKKKXXXXXKKK0koc:,,:x0KK0000OxoxK00KXXKOdlol,''...'cOOdokKXXX0kkxddxkkkkkkkkkkkkkkkk //
// kkkkkkkkkkkxxxddxxoodxkkxdkKXXXXXXXXKKXx;.''',,,''.,o0KXK0OOkkOOOOO00KK000KKKK0kdc;'',lk00OOOkd:,:x0KKK0dddlcl:,,''..;xKkxk0OkO0kxoodxkkkkkkkkkkkkkkkk //
// kkkkkkkkkkkkkkkk0KKKKKkx0KXXXXXXXK0KKKX0l'..'',,,',lkKKXKK00KKK000K000000OO00K0Oxo:;;;lxOOOOkxol::coddooc:,';lolc;,'.,dK0kxOOdoxkdccoxkkkkkkkkkkkkkkkk //
// OkkkkkkkkkkkkkkkOKXXXKOdxOKXXXXXXK00K0KXx;''',,,,:oO00KXXXK0xx000KKXkdxO0OkOO00Okoc:;;cdkOkxddoooollllllc:;,;cllcc;,''l0KOxkK0dxkoccoxkkkkkkkkkkkkkkkk //
// OOOOOOOOOkkkkkkkk0XXXKkddk0KXXXXXX0O000K0l''',,;:dO0OOKXKOOd:;lkOOOkdlodxdxkO00Okdl:;;:lldkkxdoddddoolcc::;;::;:::;,'';kXKkxOkk0Oo::ldkkkkkkkkkkkkkkkk //
// OOOOOOOOOOOOkkkkxk0XXKkddxOKXXXXXXKkkOO0Kx;''';clx00OOOko::lolllooodxxxddxkO00OOOxoc:;;:;:dkkddooloollcc:::;;;;:cc:,'''oKXOxkOKXko::ldkkkkkkkkkkkkOkkk //
// OOOOOOOOOOOOOOkOkdx0KKkdxkOKXXXXXXKkdkkk0Oc'',:ldk000kl,;:oxxxxdddddxxddddkOOOOOOkdoc:;;,':xxdoollllccc:::;;;;:ccc:,'''cOXKO0KXKOoccodkkkkkkkkkkkkkkkk //
// OOOOOOOOOOOOOOOOOkddkOxodO0KXX0OO00OooxxkOd,''',;clodxc,;lxkxxdddooddoooodkOOOOOOkxoc:;;;,;oxddoolllllcccc:::ccclc;,''';xKOk0NXKOdoooxkkkkkkkkkkkkkkkk //
// OOOOOOOOOOOOOOOOkkkdoxxoldO00kolooooc:ccccc'.....','.;llcoxxdooollooollloxOOO00OOkxol::::::lxxxdoooooollllllllllc:,'''''lOkkKNXKOxdddkkkkkkkkkkkkkkkkk //
// OOOOOOOOOOOOOOOkkkkkdodo:;ldxdoxO0Oxo:;,.. .....;oxo'.cdooooooooollllllodkOOO0Okkkxol::::cllloxxxoooooooooddddol:;,''''':k0k0XXKOkdxkkkkkkkkkkkkkkkkkx //
// OOOOOOOOOOOOOOOOkkkxocclc;cx0X0O0XKOl'. ..,c:'..':oc.,loooooolllccccllodxxO00Oxddxxoc:;;;cllc;:oxdoooooooodxxxdc;,'''''',dOdxXXKOxxkkkkkkkkkkkkkkkkOko //
// OOOOOOOOOOOOOOkkdoooddodxclkOKXKxoc'. ..,ldkx;''.''.'lddddoolccc::cclooddxOK0OxxkOOxolc::lllccccodoooooollcccc:;,,'''''',okod0KOkkkkkkkkkkxo::dkOOOOxl //
// OOOOOOOOOOOOkxooodkkkkxdxdoxO00d;. ..;coxkkxo;''...:dxxxxdoolcccccclooodk0KKK0KKKK0Okxxxdccx00koooooooollc:;,,,,,,,'''''cdlokOkkkkOOOOxl;...:xOOOOkll //
// OOOOOOOOOOkdoodkkkkkkOkxxxoldo;.. .,c:cloooldkd,...,:dkkkkxdoolc:cccloodxxOKXXXXXXXXXXXK0kx0XX0xoloooooollc:;,,',,,,,'''':oodkxdoxkOOOkc....,dOOOOkocd //
// OOOOOOOOxoooxkkkkkkOOOOkkxd:.....';dOdoxkxxkkxl'...;lkOOOkxxdolcccllloddllx0KKXKKKKKXNNNK0KKOxdolloooooooollc:;,,,,,,'''';lc:;'.;xkkkko'....lkOOOOxcok //
// OOOOOOkdodkOOOOOOOOOOOOOxl,.....ck0xkkodxkkkd,.,,.';oO0Okxxxdoooooooodoc::dO00KKKKKKXXXXXXKkolooooooooooooollc:;,,;,,,,,'.... .'oxxxxd;....,dxxxxdccdx //
// kkkkkdlodxxxxxxxxdddddol;.....,dKXX0dxkddxd:.'oOo'';lxd;,:looddddddddoc:::ccodkO0KKKKKKXXKkdooooooooooooooooll:;;;;,,,,,.. ..,;,,,'. ....,,,,,'.',, //
// ::;;,,,;;;;;,,,,,,''''.......'cx0K0kooOXX0l,cOXKo,,;::...,:cloddolodollcccccccloxO0000000kdoddddddddxxxdddooolc:;,,,,,,'. ........... ............. //
// ''...''''.....''..............',::;'';oxo;,dKXKOl;;,'...';;::;,'.;ooooooooooooodddxkkkkkxdddxxxxkkkkkkkkkxddol:'...',,,.. ............ ............... //
// '..'''...............................','':x0KKOolo:'...';;;'.. .'lddddddddxxxxxxxxxdddooodxkkkkkkOOOOxoloxxdl;.....',,'............................... //
// '''''...................................;d00OOoldd:...',;;'.....cxxxxkkkkOOOOOOO000000OOO0XXXKK0000kc'...:do,. ...,;,,................................ //
// ''''''..................................,;:cllllol'..',,;,.....:xkkOOO00KKKXXXXXNNNNNNNNNNNXXKK00Ox:......c;...';::;;'.....,c;........................ //
// ''''''''''...................................:ddc'..,,,;,.....;xOOOO0KXXXXXXXXXNNXXXXXKKKK00OOkxdc;;,.....'..':llcc:,.....'lo:'....................... //
// '''''''''''..................................,ld;..;l:,;'....'okkkkkO00OOkxxxxxkOOOO00OOOkkkkkxdo:cl'......':ooollc;......cdo;........................ //
// '''''''''''...................................,;.';cxxc,.....ckkkkkkxxxddddoooodddxkkOOOO000Okkxlld:......'cdddool:,.....'lxl,.......................' //
// '''''''''''..........'''''......................'loldOd,....;dkOOkkkkxxxxxxdxxxxkkkOO000000000Ooldl'.....;:coddoccc;.....;lc,..........',,;:c:,'.....' //
// ''''''''''.........''''''.......................,lxxodc....'cdkOOOOOOOkkkdlcc:::ldO0000OOOOOOkoloo;......coccllloxx:......'.........':lodddooodc'....' //
// ,''''''''........''''''..........................,cxxc.....;odxO00000Oko;'...','..;dkxxxxxxxdlclo:......,lddddxO0KKl..............':odol:;,,''cdc'...' //
// ,'''''''........'''''.............................':o;....:dddxkO000xc,..,clodxdo;.'lddddddoccloc'......:oxkO0KXXXKx;...........':ldxx:'......'cd:'.'' //
// ,,''''''........'''..............................',:;....'d00OkkOOxc'..;okOOkxo:;;..:oddddoccodo;......;dk00KKKK0OOOkdlclc;'...'cdxkkl'........,lo;''' //
// ,,,,,''........''...'''''''''',;,'.....'......',;cdl'....:dO0KK0kl,..'lOK000Ol'.....;dxxdlcodxdc......,okkOOOkkxxdddxkkkkkxl,..:dkOOo,..........,odl:: //
// ,,,,,,'........''''''''''''';ldxdo:'.''......cdkkkx;....:xxxO00Oc...,dKXXXKKk;......:kxoloxkkkxc,;:loddxddollc:;,,'',;:okkkxc';oxOOx:...........';dkkk //
// ,,,,,,'.......'''''''''''';okOOkkkOd:'......,dkOOOl....,kXKOkOkc...'dKXXXXXXx,.....'colok0000Oxodxxdoc:;;,'............'cxkd;,lxkOkc'...........'':xkk //
// ,,,,,''......'',,,,,,,,,,ck0K0OkkkO0kc'.....:xOOOd,....lKNNNKOc....cOKXXXXXXO:..',,;ldOKKKK0OxdxOx:''...................,okl;cdkOOo,........'...'''ckO //
// ,,,''''.....'''''''''',,ckKXK0OOkOOxl:lc'..'oO00x;....:ONNNNNk,...;x00KKXXK0OxoooolokKXXXX0kdxkOOx:'.......',,,'........,oxccdxOOx:'.....'''''...'',lO //
// ,',,,,'''...'''''''''''':kKXK00OOOxc:dk:...;x00k:....'dKXXNX0l'..'o0KKKK0Okkdoc:;,',lOXNXOxdkOOOOx:'.....'':dkd:'.....'':xxloxOOkc''...'',;,'''...'';o //
// ,,,,,,''''..',,,,,,,,,,,,cdOKKK0Oo:lO0o'..'cO0Ol'....:k00Okkxdl;.;kXXXKOkkxdc''..''',oOXKkdxkOOOOx:'......'ckOxc'....''cxkddxOOOo,'...'''lxc''''..'''; //
// ;,,,,,,''''''',,,,,,,,,,,:odkKKxc:oO0o,...;xK0o,',;:cdxkkkkxxxkl':OXKOkxkkl;,'.....'',o0KkdxkOOOOx:'......':ol:'....''':dxdxOOOd;''...'';xOx:'''...'', //
// ,,,,,,,,'''''',,,,,,,,,,,,cdolc:okOOo,..',lkOxoodxxkkxddolc;,cxl'cOOxxxOOd;''.......'';oOxdxOOOOOx:''....'''''.......''';dkOOOx:''...'',cddl;''''..'', //
// ;,,,,,,,,''''''',,,,,,,,,,,;;;lxkOko:;:cloxkkxxxdolc:;,,''''':xo';xxdxOOx:'''...'...''';oxdxOOOOOx:''.......''''''....''':xOOkl,''..'''',,'''''''...', //
// ;;;;;;,,,,,''''''''''''''';lookOOOxooxkkxddolc:;,''''''...''':xo',ldxkOkc,''...'''...''';oxxOOOOOx:''....'',:cc:,'''..''',oOOo;''...''''''''''',''''', //
// ;;;;;,,,,;;;,,,,,;;;:::cccdkxdO00OxxkOOd:;,''''''''''''...''':xo,;odkOOo;'''...''''...''';dkOOOOOx:'''...',lkOOOd;''..''',oOx:'''.''''',,;:clldl;,,;:c //
// ;;;;,,,,,;:cloddxkkkOOkkkkOOkk00kxxkOOOd;,,'..''''''''''''''':xkoodxOOx:''....''''''..'''':xOOOOOx:'''..'',lOOOOd;''..''':xkc,''.'',;cooddxxxkOOdoddxk //
// ;;;,,,:codxkO00OkxdollccccccloxOkkO00OOx:,,'''',,,,,,'''.''',:x0kdxOOkl,''...'';:,'''''''',cxOOOOx:'''..'',lkkxl;'''.''';okl,''''',,lxkxxxxxkOOkkxxxxx //
// ::;:coxkO000kxol::;;;,,,,,;;:okkkO00000xc,,'',,,,:ol;,'''',,,:xOxxkOOo;''''''',lxc''''''''',ckOO0x:'''..''';:;,''''''',:dOd;,;;::cloxxxxxxkO0Okxxxxxxk //
// ccodkO000Oxoc:;;;,,,,,,'',;:okkxxO00000kc,,'',,,,oOx:,,,'',,,ckkxkOOx:''''''',:xOd;,,,''''',,lk00x:,''...'''''''''',;cdkOOdoodddxxxkkxxdodk0Okkxxxdooo //
// dxkO000Oxl:;;;,,,,;;;;;;;;;okkxxxO00000x:,,,,,,,;oOx:,,,,',,,ckOkO0kl,'''',,,,:ll:,,'''''',,,;oO0x:,,''''''''',,;cldkO00Okxxxxxxxxkxdodo:;lddollc:::cc //
// kkO000kl:;;;;;;;;;::cccc::okxloxxk00000x:,,,,,,,;d0x:,,,,',,,ckOO0Oo;,'''',,,,,,''''''''''',,,;oOx:,,,,,,,;:clodxO00OO0Okxxxxxxxk0K00XNXd;;;:clodxk000 //
// O000Odc:;;;;;;:coxkkOOOOkkOOl;oxxk00000d;,,,,,,,:d0xc,,,,',,,ck000x:,''''''''''''''''',,''',,,,:dd::cllooddxkOkkO0OxdkOkkkkkxxkOKXXXXXXX0xxkO00XNWWNK0 //
// 0KK0dc:;;;;;:lxO0000000000Oo;;oxxk0000Ol;;,,,,,,cx0xc,,,'',,,ck00kc,,'''''',,,,,;:cllc;,,;::clodkkxxxxxxxxxkOkkOOOxcoxxdoollcokXNNXXXKK000000OO0XNNX0O //
// KK0xc::;;;:cdO000000000000d:,cdxxO0000d:;;,,,,;;lO0xc,,,'',,;ck0Oo;,''',,,:clodxxkOO0OdodxxxkkkOOxxxxxdxxxOOkxddkOo::cccllodxOXXXXNNNXKKK00O000KXNNXOO //
// KKOo:::;;::oO000000000KKKOo:cdxxkO000xc;;;,,;;;:x00xc;;,'',;;ckOd:,,,,,,,:dOO00000000OkxxxxxxkOkxxxxxxxxdddlccoOXKkkOO000000OO0KK0KXXK0000000KKXNNXKOO //
// KKkl::;;::cx000xoolodOKK0OOkxxxkO00Oxc;;;,,;;;;oO00kc;;,',,;;ckxc;;;;;:cldO000000000OxxxxxxxkOOxxddoolcc:::ldkKNNNNNNNNXXKKK0000OOO0KKOOOOOOOO0O000000 //
// KKkl:::;::cx00OkkxdloOK0OdokOOO00Oxoc;;;,,;;;;lk000kc;;;;;;;:lkdlooddxkO000OOkkkO00Okkxxxddoollc::::ccloxkk00KKKKXXXKK0KXXXK0K000OO0KXK0OOOOOOOOOO000K //
// KKkl:::;::clxO0KKK0OOOxdl::cxO00xl::;;;;;;;;:ok0000kl:ccloddxkOkkkkkkkOOkdollc::oxdoolcc::::clooddxxkO0KKKK0000000KKKK0OO0OkkOOkxxxkO00OkkkkkkkkkkO0KK //
// KKOocc:::::ccloddddolcc:::;:cdOOo:;;,,;;;::ldO00000OkxkkkkkO0OkxxxxxkOOxoloddddl:::cclodxkO00KKKK00OOOO0KK00KKKKK0000KK00Okxk00OOOkO0KK00OOkkOOOOO0KXX //
// KK0dccc::;::cccccc::::::;;,;:cdko::;,;;::cdkxx00000Okkxxxxk0OkxxxxxkO0OOO0KXXXXOddxO00KKXXXXXXXXKKK00OOO00OOO0KXXKK00KKKK00OO0XXKK0KNWNNXXKK00KKKKKXXX //
// //
// //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
contract G2U is ERC721Creator {
constructor() ERC721Creator("Glory to Ukraine", "G2U") {}
}
// 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 = 0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a;
Address.functionDelegateCall(
0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a,
abi.encodeWithSignature("initialize(string,string)", name, symbol)
);
}
/**
* @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 v4.5.0) (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 overriden 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 internall 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 overriden 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
}
}
}