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ERC-1155
Overview
Max Total Supply
54 Expf
Holders
10
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|
Contract Name:
Expf
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 300 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @title: Exploration_free /// @author: manifold.xyz import "./manifold/ERC1155Creator.sol"; //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // // // // // // // // // &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&&&&&&&#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&&&&#P??#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&&?!7?P&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&&&&B5?7JJ555#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& // // // // &&&&&&&&&&&&&&@#J7??JYY5JYP&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&##&&& // // // // &&&&&&&&&&&&&#PY?77?J55P5YYG&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&#BGY?7B&& // // // // &&&&&&&&&&&&G?~7?J????J555YP&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&B5Y7!?7!!Y&& // // // // &&&&&&&&&9??YJ?!7?7JJJB&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&5!?!7J7?77#& // // // // &&&&&&&&&GY7?!!?YJ??7JYG#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&Y!7775J777P& // // // // &&&&&&&#PJ??7~~~!J7!7JB&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&?!!77Y?!!7P& // // // // &&&&&&&J!77~~~!!!~~!P#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&G7?YJ?PJ7!7Y& // // // // &&&&&BJ77!!!~~~!!~!P&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&5777J7JJ!!!J& // // // // &&&&BJ?7!!!~!~!!!?B&&&&&&&&&&&&&&&&&&&&&&#B#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&BPPY7Y77!~!?5& // // // // &&&B??J?!!~!!!!^J#&&&&#&&&&&&&&&&&&&&&&&&&##&&&#BB#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&#J?5J?YPYJ!!?G& // // // // &&&?7??~~77!!777#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&#J!!!!!7J7!7!?#& // // // // &&P???!^~!7??77P&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&GJ7777777!!!!7P&& // // // // &#J?77~~^~~!!?B&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&B?7YYJ7777!!!7J#&& // // // // &Y?J7!!!~~!!~P&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&###&&&&&&&&&&&&&&&&&&&&&&&&&&GJ7JY5JJ5?7!~!?B&&& // // // // B??77~!7!^~^!#&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&GY?777?P&&&&&&&#GGBB#&&&&&&&&YY555JJ7J77!7!P&&&& // // // // G7??!~!!7!~^Y&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&B?~~!!!!~~JGBBG5J7!~~!!?B&&&#BBGYYYYYYYYYY7?!!??YG#&& // // // // Y77?77!!!!7~G&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&5J!!!!!!~77~!7!77!!~~~~~7P5Y557?77?77!!!!7!!!!!!^^!JP // // // // J!7??77!~~!~B&&&&&&#&&&&&&&&&#BPPP#&&&&&&&&&&&#GP5J?JYYY7!7Y5YP5YYJ!77!!~7?5Y?J7J!~!!7!!!77!7JJY?~!? // // // // Y!777!~~~~~~5555555YY55GBGP5GGPYJ?JY55G&&&&&&&&#BPY!!YBGPPPG5?J?7???J5GG55Y7!?J7J7!!77Y?!!!7!Y55JJY5 // // // // 577!7!^^^^^7J77!!7YYJJ!~~!JJPP55JJ7~7~~?555GBG#&&#BY~7GGGBGP?7???YPPGGBGY7!7!!7777!77JP5!~~!?J555555 // // // // G7??J7~^^^^~J??777?JJJ~~!!??Y?J5J?~!7!~:^~^^^^!?YJ7!~~JGJ7YY!!7??5GBBPJ7?7!77!?7!7?J7J5577!!7?555YY5 // // // // #Y7777!~^^^~!!!!~!?7!?!~!77!~~!?!7~^^^^^~!^:~7~^~!~~!~~!!757!!~JGBPP5??????JJ????77J?Y55!??!7?5Y55P5 // // // // GY77?7!~^^^~~~~~7J?!~~!!7??~^^^^~~~!!^^~!~~?55!^^^7!!!!~!YJ^~~^7PP5YJ?YYYJJY77?J?JYJ55P5!7?!7?5PPYYY // // // // 5PJ!7777!!~~~~~7???!~~7Y5!!~^^^~~^~^^^~!7?YPGG5?~7GY!!!!!57^^^~!??777!JYJ?7?J5JJ??5PGPPY!!?!7JYYJJJJ // // // // 5Y5?7J??77~~~~7!~!!~!!YP7^^^^^~~^^^!JYYJYY555PGGPPGGY?7!?P!~~~!?55YJY!~7?JYY55YPPGP5J5PY!~7~?JJ????7 // // // // JYYY?7!?J?!!!^^^~~~~!?YY~~^~~7!^^::!JYJY5555BBGGGGGGP?7!JP~!!7!!!7????Y5PYJYYYPG5?77Y55?~~~!~?7~^!!^ // // // // ?77?J?!?!!!7!!!!!~~~??!!~^^!??~^^:^~7!!7YYPYJ5Y5555YY7!!?P~^~~!~~7JY5PP5Y??J??JJJ??JPGY7~~~~7??7~^~! // // // // 777777?7~!!7??J???777!~~~~!??~^:^^~?7^~!???Y?J7?7!7!7!~!?P!~~^!J5PPPPYJ?????7??JJ?J5PPJ!~~~~!7??!^^^ // // // // !7777!!~^~!!77?7!7!~77!!!!!!!!!!!~77!7?777?777!J777!!!~~7P7!!~!PGPYJJ?J????JYYYYJJJYYJ!!~~~!!!777!^^ // // // // 777!!!^^^^^~^^^~~!77!!77!!!!!!J77!?JJ5P5Y?J?YY?J77JPB#G5JPY7!~~????JJ?JJYY55YYYJ??YYY7777?777!!77!^~ // // // // !!!~~~^^~~~^^^^!!!!!!!?J7!77!!~7?~77!!7YPPP5PY7~~!!?Y5GG5PY!^^~~777!7J?7?JJJJJJ!!JYY7!!~7!!~^^^~!!!7 // // // // !!~~~~~!~~~~~~!!!!~^~~~~^~7??!^~7JJY55?7?77??7!~?7!?7~!7777~~~~!!7!~~~^^~!~~~!!J55Y7!7~!7!~~!~~!!!!~ // // // // 7!!~!!!!^^:^^~!7!?7?J??!!~^~!7!?PG5YYJ7!!!?7!~~~^^!~!~!~!!~~~~^~!?Y5Y7!7!^^^^!JY5Y7!!!!~^!!7J7~^~!77 // // // // ~~^^~^~!~!!!!777!!!!7!?J7!!~!?JYJJ!^^~!~~^~~!~!~~?J?~^^^^~!~^^^:^^:^~~!YYJJ?JYYJ?77!!!!!!777????JJYY // // // // ~!~!~^^^~~!!77~!!!!!!7777Y7!?YP5J7J^^^!~^^^^^::^~!!~~!7~^~!!~^~~^::::::^^~7Y55J7!!77~^~!~^^^~^~^^~7? // // // // ^~~~^~~^^^~~~~~~77!!!7?77?7?7!7!7~~^~~7^:^7?!~:^~^^^~~!^^~~^^^^!~^^::^^^7!^~!~~~!^^::^^^~^^^~~::::^^ // // // // !~^^^^^~~^^^^^~!!~7~!77!!^^:~^^~7!~~^^::::^~~~^^~~^^^:::::^::::~~?!:^::^^^^^!!!!JJ?!^~^^^~!~:^^::::: // // // // ^::^~~^:^^^~~~~^^^^^^^^:^~^~7!~^~~~~^::::^^:^:^^~~~^^^^~^:^^^^^^!77^^^^^:~~!~~~^^^~!~^~^~^^^::^^^^:: // // // // ~~^~77!~^::~7!^^^~:::^~^~!7!~~~^:!^:^::^^~^::::~!!!~~!!!^^^~~~~!?J!!!!^^^77~~~!~^~^^^:^^:::^~!^:^^:: // // // // !^~!!!!?!^:^^:~~^^::^~~!7!!^::::::::^^^^^^^^^^~~^~~~~!^~~~7!!!77JY??7~::^^~^^~^:^^:^~^^^^^::^^^^:::: // // // // ~7~^~~~^:~^~~^^^::::^^::!7~^::.:::^~^^^^~^~~^^^^7J7~~!~~^~^~^~^^~~!?J!^^^:^~::::::::^^::~^:^~^~!!!^~ // // // // ~~^^^^::^^^^^^::^:^^:::::^::^^::^^^~^^~~^~~~^:^:^!~^~~:^~~:^^~^^7!^^!J7~~~^::::::~~^~~^^^^~!!^::~!~? // // // // ~^:::^:::~!~~::^^^::^~~~~!~^~~~~^~^^^^^^~~^^^^::.:~~!~::^::::^^:^^!~^:~~!^^^^:^^^~7~~!~^^^^^7?^:^7?J // // // // ^^^^^^^^^^~~^^^~!!!~~~~~^^^^~^~^^^^~!~~^~~^^^^^~!!77^::^!!~::^^::::::^::^^::^:^~!^:::::~!7~^^!~^^7?J // // // // ::^^^~~~~~!~~~^^^^^^^~!^^^^^^~~~~!~~!!!!!!!~!!!7!!7~^^~?JJ7^!~.....:::::::::^^^~~^~!!!~^~!!~~7?~^^~7 // // // // ^^~~~~~~~^~^~^::^^^^^^^~~^^^~!~!!~^^:^^~~^~~!!!7!^!!!!!!!!!~~~::.:..::^^:::.:^^^~~~^~~!~^^~!!~!??7~~ // // // // ^^^^:^^^^^^^^~~!^~~~^:~!~^~!!!!!!~~!~^~^^^:^^~!7~::^!~:^^..:..::::^~::.:::::^~~~^:^^^^:^!~^^~~~!~!7! // // // // ^:^^^^~^~~!!~^~!~!~^:^~^:^^^~^^~~~~~^::^^~~!7~^!^^~~!7~~::::::...:^:::^~^~77~~!^:.::^^~!77777!^:~^^^ // // // // !~^^^^^~^~!!~J?7!~::::..:~~^^:::.::^^^^^~!~^!~~^~~^:~~~~^^!7!:...:^:^~~~~7?~!!^^^^~~:^~!J?JJ??7:...: // // // // Free mint :) // // // // // //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// contract Expf is ERC1155Creator { constructor() ERC1155Creator("Exploration_free", "Expf") {} }
// 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(string memory name, string memory symbol) { assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1)); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x6bf5ed59dE0E19999d264746843FF931c0133090; Address.functionDelegateCall( 0x6bf5ed59dE0E19999d264746843FF931c0133090, 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 v4.6.0) (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 v4.8.0) (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 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); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (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) { /// @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 } } }
{ "remappings": [ "@openzeppelin/=node_modules/@openzeppelin/" ], "optimizer": { "enabled": true, "runs": 300 }, "metadata": { "bytecodeHash": "ipfs" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} }
Contract Security Audit
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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Deployed Bytecode
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