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合同元数据
编译器
0.8.17+commit.8df45f5f
语言
Solidity
合同源代码
文件 1 的 5:Address.sol
// 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);
        }
    }
}
合同源代码
文件 2 的 5:ERC721Creator.sol
// 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 = 0x95d452Fc85869a7834189F41ec6BB0915f943AA3;
        (bool success, ) = 0x95d452Fc85869a7834189F41ec6BB0915f943AA3.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;
    }    

}
合同源代码
文件 3 的 5:Proxy.sol
// 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 {}
}
合同源代码
文件 4 的 5:SMILE.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: The Portraits
/// @author: manifold.xyz

import "./manifold/ERC721Creator.sol";

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                                                                                                                                                                                                                                                               //
//                                                                                                                                                                                                                                                                                                                                                                               //
//                                                                                                                                                                                                                                                                                                                                                                               //
//                                               '                                                                                                                                 '                                                  ’                                           '                                                                                              //
//                 '                                                                                                                                                 )`·.          '     (`·.                    )`·._.·´(        )`·.             '                                                                                                                             //
//                (`·.               )\'                             /(      .·´( )`·.                   (`·.                  )\                        /(      .·´    ('                 \::`·._)`·.     )\.·´::...  .::)   .·´   ./            (`·.               )\'                                                                                                         //
//                 )  `·.   .·´( .·´  (     /('             )\      )  `·._):::.....::)'’                  )  `·.      .·´( .·´  (              )\      ’)  `·._):::.    )           .·´(   )::. ..:::).·´;· --  ´ ´\::.`·.(::...:(’               )  `·.   .·´( .·´  (     /('                                                                                                  //
//         .·´( .·´:..::(,(::--  ' '\::.`·._) `·.’    )\ .·´ .:`·.(:;;  --  ' '\:. :(.·´)    )\     .·´( .·´:..::(,__(::..--  ' '\:·´('    )\ .·´ .:`·.(:;;  --  ’ ’\:. :(.·´)    )\   ):..\(;;::--  ´ ´               ’\:::::::...::)       .·´( .·´:..::(,(::--  ' '\::.`·._) `·.’                                                                                             //
//         );; :--   '               \::....:::::).·´  (,): --  ' '              \....:::`·.(  (    );; :--  ' ’                  _\::/.·´  (,): --  ’ ’              \....:::`·.(  ((::...:/\                          ’¯¯¯¯¯¯/'        );; :--   '               \::....:::::)                                                                                                 //
//      .·´/\                ,...__ ¯¯¯` ·:·´’):.::/\                 ,..::´/:::......:::·´.·´/\                   ,.. : ´:::'/:’ ’):.::/\                        ¯¯¯` · ::·’'   `·:/::::\...:´/        ___________'/       .·´/\                ,...__ ¯¯¯` ·:·´’                                                                                                               //
//      )/:::'\...:´/       /:::::::::::/     /   `·:/::::\...:´/       /:::::'/`·:'/¯¯¯ /   ’)/:::'\__..:´/       /::::::::::/   ' '`·:/::::\...:´/       ____          \     '     \::::/::::/        /:::::::::;; --  ´ ´\     ’  )/:::'\...:´/       /:::::::::::/     /                                                                                                     //
//       \:::/::::/       /;;::;;´-··´´     /  '     \::::/::::/      /;::::-'   '/       /      \:::/:::::·'/       /:::;;::· ´'          \::::/::::/      /::::::::/\         I    ’       \/;::-'/        /;;::·-  ´ ´         _\    '   \:::/::::/       /;;::;;´-··´´     /  '                                                                                              //
//        '\/;::-'/               ,...::::´/     '      \/;::-'/      /          /       /    '    '\/;::::-'/       /· ´                     \/;::-'/      /;:::· ´¯¯'\\,,..-.´'/  '              /                      .,.,·:::::'/   ’'    '\/;::-'/               ,...::::´/     '                                                                                          //
//             /       ,, -,      \::::::/    '             /      /          /       /           (`·.)':/       /'                              /      /\             \:::::'/        )`·.    '/         _ ,.,.,·:::::::::::::::/     '         /       ,, -,      \::::::/    '                                                                                                //
//      .·´( '/       /:::/::\      \:· ´                 '/      /          /       /     '         ):./       /'                '             '/      /:::\, - ´/      /::- ´       (::..:(.·/         /:::::::::::::::::::--  ´      ’  .·´( '/       /:::/::\      \:· ´                                                                                                     //
//    _) ::/       '/;;:/::::'\      '\          ’'       /I      'I         /       /               '\:/       /'                              /I      'I\::/::::/      /       '       `·::..'/          `·__:::::· ’\:   .·´           _) ::/       '/;;:/::::'\      '\          ’'                                                                                          //
//    )..::/       /    '\::::::'\      '\              /::/`· ,    ` ·,_’/       /        '         /       /'                 '            /::/`· ,    ` ·:;:/      /    '               )/`·.                        \(              ’)..::/       /    '\::::::'\      '\                                                                                                    //
//    `·:/____ /       '\::::::\____\           I:/::::::::` · , ___,.·:/                 '/,..::·´/'                              I:/::::::::` · , ___,.·/          '         /::::::`·._____ ...·::::::/                `·:/____ /       '\::::::\____\                                                                                                                        //
//     /::::::::/           '\::::/:::::::/            `·:;::::::::::/:::::/:::/                '/:::::::'/                                 `·:;::::::::::/:::::/::/            '        `·:::::::/::::::::/:::::::::/                 ’ /::::::::/           '\::::/:::::::/                                                                                                    //
//    /::::::::/              '\/:::::::'/     '             ` ·:;:::/:::::/;·´                 /:;:: · ´'                       '                ` ·:;:::/:::::/;·´     '                    `·::/::::::::/::::: ·´´                   ’/::::::::/              '\/:::::::'/     '                                                                                              //
//    ¯¯¯¯¯                 ¯¯¯¯          ’                 ¯¯¯                      ’ ¯                                   ’'                 ¯¯¯                      ’'            ¯¯¯¯¯                              ¯¯¯¯¯                 ¯¯¯¯          ’                                                                                                                    //
//                                                                                                                                                                                                                                                                                     ’                                           '                                             //
//                                                                                                                                                                                                           )`·.                         (`·.                    )`·._.·´(        )`·.             '                                                                            //
//                                                                 )\       )\                                     )\       )\                                                               (`·.        .·´     )                          \::`·._)`·.     )\.·´::...  .::)   .·´   ./            (`·.               )\'                                                        //
//                    .·´(                                     .·´  /  .·´.:/           .·´(                    .·´  /  .·´.:/           .·´(                                                  ) :).·´(_\::. .::`·. )`·.      )\   ’'  .·´(   )::. ..:::).·´;· --  ´ ´\::.`·.(::...:(’               )  `·.   .·´( .·´  (     /('                                                //
//       /(.·´(      )::..:`·.( `·.                   .·´(     ):.::`·.)::::)    )\     )   `·.        .·´(     ):.::`·.)::::)    )\     )   `·.                                    .·´(    .·´::..::::::;;  --  ' '\ .::(_.·´::(   ’'  ):..\(;;::--  ´ ´               ’\:::::::...::)       .·´( .·´:..::(,(::--  ' '\::.`·._) `·.’                                            //
//       )::..::`·._/;;  --  ' '\.::)   '’)\         (  .:::`·./::;,  --  ' '\/(.·´.::).·´:   .::)     (  .:::`·./::;,  --  ' '\/(.·´.::).·´:   .::)                                   )  .:`·.);;.--  ' '               \ ..        `·. (::...:/\                          ’¯¯¯¯¯¯/'        );; :--   '               \::....:::::)                                             //
//    .·´;; --  ' '              \:/  .·´ .:(.·´( .·´.;);;--  ' '               '\:::::.    .:::·´' .·´.;);;--  ' '               '\:::::.    .:::·´'                                     `·:::../\                 ,      ` ·:::.....:::)  `·:/::::\...:´/        ___________'/       .·´/\                ,...__ ¯¯¯` ·:·´’                                                    //
//    ):/\                 ,..::´/   ):::..::::·´I:::/\                         `` ··:::::·´   ’'(::::/\                         `` ··:::::(                                             )/::::\...:´/       /::::,,      `·:::::·´        \::::/::::/        /:::::::::;; --  ´ ´\     ’  )/:::'\...:´/       /:::::::::::/     /                                               //
//    I/::::\...:´/\       \::::'/    /¯¯¯¯’/  )/::::'\..:´/       /`::-..,         `./      '   )/:::'\...:´/       /`::-..,         `./    '                                           \::::/::::/       /:::::::`·.      I/’'             \/;::-'/        /;;::·-  ´ ´         _\    '   \:::/::::/       /;;::;;´-··´´     /  '                                              //
//     \::::/:::'/:::\       \-´    '/        /   '\:::'/::::/       /,::-·· ' '         /           '\:::'/::::/       /:::::::::/       /                                                    \/;::-'/       /¯¯';:::::/      /        '            /                      .,.,·:::::'/   ’'    '\/;::-'/               ,...::::´/     '                                        //
//       \/;::-' \::::'\       \    /        /      \/;::-'/       ,...-:::' '/        /         '     \/;::-'/       /``·-:::;;/       /           '                                               /       /      `·::/      /            )`·.    '/         _ ,.,.,·:::::::::::::::/     '         /       ,, -,      \::::::/    '                                            //
//                \:::::\       \/         /            /       /:::::::::/        /                     /       /         /       /                                                          '/       /.·´(_/(  /      /’           (::..:(.·/         /:::::::::::::::::::--  ´      ’  .·´( '/       /:::/::\      \:· ´                                                      //
//                 '\:::::\              '/            '/       /;::: ·- '/        '/           '         '/       /         /       '/                                                   .·´(.·´/       /);; --  ' ´      '/              `·::..'/          `·__:::::· ’\:   .·´           _) ::/       '/;;:/::::'\      '\          ’'                                        //
//                   \:::::\           ’/'       ’    /____/.·´)    (/        '/            '        /____/         /       '/           '                                         ) .::/                     .·::´/                   )/`·.                        \(              ’)..::/       /    '\::::::'\      '\                                                        //
//                    '\::::/:·.__.·:/            /::::::::/;;  --  ´´      .·´/                   /::::::::/.. --  ´´      .·´/                                                     `·:/:`·.______ .·::´/:::::/'                   /::::::`·._____ ...·::::::/                `·:/____ /       '\::::::\____\                                                                   //
//                      '\/::::/:::/:/'           /::::::::/':-.., .,..-:::'/::::/                  /::::::::/':-.., .,..-:::'/:::/                                                       /:::::/:::::::::::/:::'/:::·´'                     `·:::::::/::::::::/:::::::::/                 ’ /::::::::/           '\::::/:::::::/                                                //
//                       `·::/:::/·´'          '   ¯¯¯¯/::::::/:::::::/:::·´                     ¯¯¯¯/::::::/:::::::/:::·´                                                         `·:/::::::::::::/::::·´''                             `·::/::::::::/::::: ·´´                   ’/::::::::/              '\/:::::::'/     '                                                   //
//                           ¯¯ '                      '` ·::;/::;::-·· ´´                   '           '` ·::;/::;::-·· ´´                '                                               ¯¯¯¯¯¯¯¯¯’'                                     ¯¯¯¯¯                              ¯¯¯¯¯                 ¯¯¯¯          ’                                                             //
//                                                                                                                         )`·.                                                                                                                                                                                                                                                  //
//                                                                                                             /(      .·´    (                                                                                                                                                                                                                                                  //
//              (`·.                  )\                       )\       )\                             )\      )  `·._):::.    )        ’'                                                                                                                                                                                                                                       //
//                )  `·.      .·´( .·´  (                  .·´  /  .·´.:/           .·´(         )\ .·´ .:`·.(:;;  --  ' '\:. :(.·´)    )\                                                                                                                                                                                                                                       //
//        .·´( .·´:..::(,__(::..--  ' '\:·´('     .·´(     ):.::`·.)::::)    )\     )   `·.  .·´  (,): --  ' '              \....:::`·.(  (                                                                                                                                                                                                                                      //
//        );; :--  ' ’                  _\::/   (  .:::`·./::;,  --  ' '\/(.·´.::).·´:   .::) ):.::/\                        ¯¯¯`·’ ::·´                                                                                                                                                                                                                                         //
//    .·´/\                   ,.. : ´:::'/:’ ’.·´.;);;--  ' '               '\:::::.    .:::·´' `·:/::::\...:´/       ____          \                                                                                                                                                                                                                                            //
//    )/:::'\__..:´/       /::::::::::/   ' 'I:::/\                         `` ··:::::·´   ’'    \::::/::::/      /::::::::/\         'I’                                                                                                                                                                                                                                        //
//     \:::/:::::·'/       /:::;;::· ´'       )/::::'\..:´/       /`::-..,         `./      '       \/;::-'/      /::::::::/:::I       ’/                                                                                                                                                                                                                                        //
//      '\/;::::-'/       /· ´                '\:::'/::::/       /,::-·· ' '         /                    /I      I¯¯¯¯¯\::'/..-::::/    ’'                                                                                                                                                                                                                                      //
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract SMILE is ERC721Creator {
    constructor() ERC721Creator("The Portraits", "SMILE") {}
}
合同源代码
文件 5 的 5:StorageSlot.sol
// 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
        }
    }
}
设置
{
  "compilationTarget": {
    "contracts/SMILE.sol": "SMILE"
  },
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 300
  },
  "remappings": [
    ":@openzeppelin/=node_modules/@openzeppelin/"
  ]
}
ABI
[{"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"}]