// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @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
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 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
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
pragma solidity ^0.8.0;
/// @title: METAPOSTERS
/// @author: manifold.xyz
import "./ERC721Creator.sol";
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// //
// ███████████████████████████████████████████████▓█▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░ ▒▓ //
// █████████████████████████████████████████████████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒ ░▒ //
// ████████████████████▓▓▓▒▒▒▒▒▒▒█████████████████████████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒ ░▒░ //
// ████████████████▓▓▒▒▒▓▓▓▒▒▒▒▒░▒██████████████████████▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▓░ ▒▒ //
// ██████████████▓▓▒▓▓▓▓▓▓▓▓▓▒▒▓▒░▒████████████████████▓▓▓███████▓▒▒▓▓▓▓▓▓░▒▒▒▓░ ░▒ ░ ▒ //
// █████████████▓▒▓▓▓▓████████▓▓▓░▓████████████████████▓██▓▓▓░ ██▒▓▓▓▓▓▓▒▒░░▒▒▒ ▒ ▒░ ▒ ░ ▒ █ ▓▒ █ ▓▒ ▒ ▓▒ //
// ████████████▓▒▓▓▓▓▓▓▓██████▓▓▓█████████████████████▓▒██▒ ▒██▒▓▓▓▓▓░ ░▒░ ▒▒ ░ █ █ █ ██ █▓ ░ ██ ▓█ █▓ ▓ ██ //
// ████████▓▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▓██████████████████████▒▓█▒ █▒▓▓▓▓▒▒▒ ▒░░▒▒ ▓██▒ ░██ ▒██ ██ ▓█ ▓ ▒████▒ ██▓ ██ █████ //
// ███████▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒░▓███████████████████████▒▓███▓▒░ ▓▓▒▓▓▓▓▒░▓▒ ░░ ░▒ ▓██▓ ▓██▓ ▓████████████ ██████████████▒ ░███▓ //
// ███████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒░▒█████████████▓▓▓█████████▓▓▓▓████▓▓▓█▓▓▓▒▓▒▒▓░▒▒▒ ▒░ ████ ▓███ ███████████▓ ▒███▓█████████▒ ▓████ //
// ███████▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▓█████████████▓▒▓█████████████▓▓▓▓▒█▓▓█▓▓▒▓▒▒▒▓▓▒░▒░ ▒████▒ ████▓ ███░ ████ ░█▓ ██▒ //
// ███████▓▒▓▓▓▓▓▓█████▓▓▓▓▓█████████████████▓▒▓███▓███████████▓▓█▓ ▓▓▒▒░▒▒▓▒░░░██████ ██████ ███░ ████ ██ ▒██ //
// ████████▒▒▒▒▒▒▓▓▓▓▓▓▓▓▒█████████████████████▓▓▓▒▒▓███████████▒█▓ ▓▒▓▒░░░░▒ ███ ███░ ███ ██▓ ████▓████ ████ ▓█▓ ██▒ //
// █████████▓▒▒▒▒▓▓▓▒▒▒▒▒▓█████████████████████████▓▓▓▓▒▓██▓██▓▓█▒▓██▓░ ░▓▒▒▓▓▓▒▓▒▒██▓ ▒███▓██ ███▒▒ ███▒ ▒ ▓███ ██▓▓█▓███ //
// ██████████▓▓▒▒▒▒▒▒▒▒▓▓██████████████████████████████████▓▓▒ ▒▒▓▓▓▓▓▓▓▓▓▓▒▓▓░▓▓███ █████▓ ████ ███░ ▓█ ▓███ ███ ░██▒ //
// ███████████████▓▓██████████████████████████████████████████▓▒░▓█▓▒▓▓█▓▒▒▒▒▒░▒████▒ ████ ████ ███▒ ▒██ ▓███ ▓██░ ███ //
// ████████████████████████▓██████████████████████████████████████▓▒▓█▒█░ ▓ ▒▓▓▓ ▒▓▓ ▓▒▒ █▓█▓▓▓▓▓▓██▒ ▒███ ██▓ ▒▓█░ //
// █████████████████████▓▓▓▓███████████████████████████████▓██████▒▒▓▒▒▒█▓░ ▒░░▓██████ ░▓█████ ▓█████▓▒▒███████░▓███████▓ ███████ ░███████▒ //
// ███████████████████▓▓██████████████████████████████████▓▓████▓▓▒█▒▓▓░░▒▓▒▒▒░███▓▓███ ████▓███ ▓██▓▓▓▓▓▒▓▓█████▓ ░██▓████░ ███▓▓███░▒██▓▓▓▓▓░ ░░ //
// ██████████████████▓▓▓██████████████████████████▓▓▓▓▓██▓█▓███▓▓▒▓▒░▒▓▒▒ ░▓▒ ██▒ ██░▓█▓ ██░▒██▓▒░░ ██ ██▓▒░ ▓█▓ ▓█▓▒██▓▒▒▒░ ░░░▒ //
// █████▓▓████▓▓▓███▓█▓██████████████████████████▓▓▓▓▓▓▓█████▓▓▓▓▒▓ ░█▓▓▓░░▓ ▓███████▒▒█▓ ██▓ ░▓▒▓▓███ ██░ ██▓▓▒ ▒███████▓ ░▓▓▓▓███ ░▒▒▒▒ //
// ██▓▒▒▓▓████▓██████████▓█████████████████████▓▓█▓░░▓▓███████▓▓▒ ░▒▓░ ▒ ▒ ███▓▓▓▓▒ ▒███▓▓███ ░▒▒▒▓██ ██▓ ███▒▒▒▓▓▓▓██▒▓▓███ ░▒▒▒▓██░░▒▒▒▓▓ //
// █▓▓████████▓▓████████████████████████████████▓▒▓▓▓▒▓██████▓█▓ ░▓▒ ░░ ██▒░░ ▓██████▓ ▒██████▓ ▓██ ▓███████████░ ░██▒▒██████▓░░▒▒▓▓▓▓ //
// ▓▒█████████▓▓▓▓███████████▓▓███████████████████▓▓██████▓▓▓▓█▓ ▒▒▓░░▒▒▓▒░░ ▒▒ ▒░ ░ ░ ░░▒▒░░▒░░ ░░░░░ ░▒ ▒░ ░▒▒▒░▒▓▓▓▓▓▓█ //
// ▓██████████▓██████████████▓▓█████████████████████████▓▓█████▒ ▒▒▒▒ ▒▓▒ ░▒▓░ ▒ ░░ ░ ░ ░ ░░░ ▒▒▒ ░░ ░▒░░░▒▒▒▒▒▓▓▒ ▒▒ ▓▒▓▒▒▓▓▓▓████ //
// ███████████████████████████████████████████████████▓█████████▒██▓▓▓ ░▓▒ ░▒▒▒▓▓▓ ░░▒░░░ ░ ▒▓▓▒▒ ▒▒ ░▒ ░▒▒▒▒▓▒▒▒▒▓▓░▓▓░░░▒▓▒▓▓▓▓▓██████ //
// █████████████████████████████████████▓█████████████▓█████████▓▓▒▓▓█▓▒▒▓░ ░░▓ ░▒ ░ ░▒▒▒░ ░▓░ ▒▓▓▒▒ ▒▓▓▓▒▓▓▓▓▓▒░▓▓░▒▒▓▒▓▓▓▓████████ //
// ████████████████▓▓████████████████████▓▓██████████████████████▓▓▒▒▒▓▓▒░▒░ ░▒▒▒ ▒▒ ░░░░ ▒▓▓▓▓▓▓▓▓▓▒▓▓▓▒▒▒▒▒▒▓▓▒▒▓▓▓▓▒▒▓▓▒▒▓▓▒▓▓▓█████████ //
// ███████████████▓▓████████████████████▓▓▓▓▒▒▒▒▒▒▒▒▒▓████████▓▓▓███▓▓▓▓▒▒▒░░▒▒▓▒▓▒▒▓▓▒▓▓███▒ ░▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒░▓▓▓▓▓▓▓▒░▓▒▓▓▓█▒▓████████████ //
// ██████████████▓████████████████████▓▓▓███▒▒▒▒▒░░ ░▒██████▓▓████▓▓▒▒▒░▒▒▓████████████▓▓█▓▓▓▓██▓▓▓▓▓▓▓ ░▒▒▒▓▓▓▓▒▒▒ ▒▓▓▓▒▒░▓▓▒▓▓█▓░█████████████ //
// ███████████████████████████████████▓█▒▒▒█▓ ░░ ░ ░░░░░ ███████████▓█▒▒▒▒▓▓░█████▓▓▓████████████▓▓▓▓▓▓▒ ▒▓▓▓▓█▓▒ ▒▒▓▓▒░▓▓▒▒▓██▒▒█████████████ //
// ███████████████████████████░░▒▓████▓▓ ██ ░░░░░░░░░ ▒███▓▓▓█▓▒▒▒▒▓▒▓█▓▒░░██▓▓███████████▒▓████▓█▓▓▓▒▓▓▓▓▓█▓▓██▓ ▓▒░▒▒▒▓▓▒▒▓█▓░▒██████████████ //
// ███████████████████████████░░▓ ░████▓▓ █▓ ░░░░░░░░░ ░████▓▓█▓▒▓█▓▓▓▓█▓░▒▒▓███████▓▓▒▒▒░ ▓████████████████▓▓▒██ ▓▓▒░ ▒▓█▒▒█▓░▒▓█████▓████████ //
// ███████████████████████████████░▓████▓▓▓█ ░░░░░ ░ █▓███▓█▒▓███████▓░▒▓▓▒▒▒▒▒▒ ▒ ▓████████████████▓▓▒██▓ ▓▓▓▒ ░█▓▒▓█▒▓█████▓░▓████████ //
// ███▓▓▓▓▓▓██████████████████████▓▒▓██████░ ░░░ ░ ░▓▓▓███▓▒▒▒▓▓▒▓███▒▓█ ░ ▒ ░██████▓▓███▓▓█████████░▒▓▓▓ ▓▒▒▓▓▓▒▓▓▓▒░░▓█████████ //
// ██▓▒▒▓▓███▓██████████████████████▓█▓▓██░ ░ ░█▓▓██▓▓░░▒▒▓▒░░▓█▓▓▒ ░ ▒░ ▓█████▒▓▓█████████████▓▒▓▓▓ ░▒▓▒▒▒░▒░░▒▓▓██████████ //
// ▓▓▓▓▓▓█████▓▓█████████████████████▓▒▒▓░ ░ ░ ░ ░ ░ ▒█▓▓██▓▒░░▒▒▓▒▒░░▓▓▒▒██▓░ ░ ░▓█████▓▓███████████████▓▓▓▓▒▒▒░▒▒▓██████████████████ //
// ▓▓█████████▓▓█████████████████████▒▒▓█ ░░░░░ ░ ░ ░█▒▓▓█▓▒▒▒▒▒▓██▓▒▒▒▒▒░░▒▓ ░░▒░ ▓▓█████████████▓▓█████▓▓▒▓▓▓▒░▒▒▒▒▓▓▓▓▓▒▓▓ ▓████████ //
// ██████████▓▓██████████████▓▓▓▒▓██▓▒▒██ ░░░░░ ░ ░ █▓ ▓▓█▓▒▒▒▒▒▒▒░░░░░▒░░▒▒▒▒▒▓▓▓▓█▓▓▓▒▒▓▒░▒█████████████▓▓▒▓███▓▓▓▓▓▓░░▓▒▒▓▓▒▒▒██▒▒ ▓████▒▓██ //
// █████████▓▓▓▓████████████▓░▒ ▓▒█▓▒▒███ ░░░░░░░ █▓░▒▓▒░ ░░ ░░░░ ░▒ ▒▒░▒▒ ▓▓ █▒▓▓░▓█▓▓▒▒▓▓▓▓▓▓███████▓▓▒▒██████▓▒▓▓ ▒▓▓▓▓▓░▒▒▓████████▓▓███ //
// ████████▓▓█▓▓████████████▓▒▓░▓█▓▒▒▒██▓ ░░░░░ ░▓█▒▒▓░ ░░░ ░ ░▒ ▒▓░░▒ ▒▒ ▒▓▒▒ ▒▓▓▒ ░ ░▒▒▒▒▓▓▓█████▓▓████████▓▓▒░░▓█▓▓▓▒▒▒▓█████████████ //
// ████████▓▓█▓█▓█████████████▓▓▓▓▒▒▓▓██▓ ░░░ ░░ ▓▓▒░░▒░▒░ ▒░ ░ ▒▒▒▒▒▒ ▒▓ ░▒ ▒▓ ▒▓▒ ▒▓▒ ░▓▒ ▓▒ ▒▓▒▓▓▓▓████████████▓░░░▒███▓▓▒▒▒▓████████████ //
// █████████▒▓▓▒▒▓████████████▓▓▓▓█▓▒▓▓█▒ ░▒▒▒▓▓▒░▓░▒▒ ▒▒░░ ░░ ░ ▒▒░░░▒ ▒▒░▒░ ▓▒ ▒ ▓▒ ▒▓ ██▒▒▓█▓ ░▓ ▒▒▒▓▓▓█████▓▓▒░▒▒▒░▒█▓▓█▓▒▓▓████████████ //
// ███▓█████▒░▒░░▒▓██████████▓░▒▓▓▓▓▒▓▓█ ░▒▓▒▒▓▒ ░▒▒░ ▒░░ ░░ ░ ▒▒ ▒▒░░░ ▒▓ ▒▓ ▒ ▒░ ▓█▒░▓▓▒▒ ▒▓ ░ ▒▓▒▒▓▓▓███▓▒▒░▒▒▒▓▓▓▓▒▒▒▓█████████████ //
// ██▓▓▓████▒ ░░ ░░▒▓██████▒ ░▓▓▓▓▓▓▓█▓▒▓▓▒░░▒ ▓▒ ▒░ ░░ ░ ░░░▒▒ ▒▓░▒▒ ▒▒ ▒█▒ ░ ▒▒ ▓▓▒▒ ▓▓░░▓░░██▒░▒▓▒▒▒ ▓▓█▓▓▒ ░▒▒▓▓▒▒▒░░▓█████████████ //
// ████▓▓███░ ░ ░░ ░▓█████▓▓▒▓█████▓▓▓▒▒▒▒▒▒ ▓█▓▒ ▒░░▒░ ░ ▒░ ░ ▒▒▒░░▒ ▒▒▒░░▓▒ ▒▒▒▓ ▒█░░▓▒▓▓ ▒▓░▒▓ ▓▓▓▒░▓ ▓ ▓▒▒▓▓▒▒▒▓▒▒▒▒▒▒▒▒▓██████▓██████ //
// █▓▓▓████▓ ░░░░░ ▓▓▓▓▒▓▓▓░███▓▓░░▒░░ ▓▒ ▓▓░░▒ ░░ ▒▓░ ▒░ ░ ▒░ ░▒ ▓▓▒ ▒▓ ▓░ ▒█▒ ▒▒▓ ▒▓ ▒▓ ░ ▒█ ▓ █░░▓▓▓▒█▓▓░▒▒▒░▒▓███████▓██████ //
// ▓▓▓████▓▒░ ░░░░░ ░ ▒██▓▒▒▒▒██▒▒▒▒▒ ▓░ ▓░ ▓▒ ▒ ▒▒ ▒▒░░ ▒░ ░░ ░░ ▒▒░░▒▓▓▒▓▒▒▒░▒▓▒▒▓▓▒░ ▒▓ ▒▓ █▓░░▓█░ ▓ █▒░ ░▒▓▒▓▓▓▓▓▓█▓████████▒▓█████ //
// ▓▓█████▓▒▒ ░ ░░ ▒██▒ ░ ▓█ ▒▒ ▒▒▓░▒▒░░▓░ ▒▒ ▓▒ ▒▒ ▒░░▒▒░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒▒▒░▒▒▓▒▓▓▓▓▓▓▓▒ ▒█▓ ▒▓ ░▓▓▓▒ ▓░░▓ █▒░░ ░▒▒▒▒▓▒▒▒▒▒▓▓█████▓██▓▓██ //
// ██████▓▓▓▒░ ░░░░░░ ▓██░░░▓▓ ▒▒ ░▓▓▒░░▒░▓▒▒▒ ▓▓░ ▒▒▒▒▓▒▒░░ ░░ ░ ░ ▒▒▓▓▓▓▓▓▒▓▒ ▒▒▒ ▒░░▓ █░▒░▓▓▒ ░▓ ▓█▓▒░░░░▒▒▓█████████ //
// ██████▒▒█▓▒ ░░░░░ ░▒▒▓█▒ ▒▓ ▒░░░▒░ ░▓▒ ░▒ ░▓▒▓█▓░ ░░▒▒░▒░▒▒▒▒▒▒▒▒▒▓▒▒░░▒░ ░▒▓▓▓▓░░ ▒▓ █░▒░░▒▓█▓▓▒▓ ▓▓▒▒▒▒▒▒▒░░▒▓▓██████ //
// ██████▓▓▓▒▒ ░░░ ░▓▓ ▓▓█░ ▓▓ ▒ ▓░ ░█▓ ▒██▒ ░ ░░░░▒▒▒▒▒▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒░ ▒▓█▓▒▓█ ▒▓░ ▒ ▒▒▓▓ ▓▓░▒▒▒▒▒▓▓▓█████████ //
// █████▓▓▓▓▒▒ ░▒▒░ ▒▓▒ ▓█▒██▓▓▓ ▒ ▓█░ ▒▓▓▓█▓▒ ░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒▓▓▓▓▓▓▓▓▓▓▓▓█▓█▓▓▓█▓▓▓▓▓▓▓▓▒▓▒░ ░▒▓▓▓░ ░▒▒ ▒▒ ▒▓ ▓▓░▓▒▒▒▒▒▓▓█████████ //
// ██████▓▓█▓▓░░▒▒░▒▓▒░░▒▓███▒▓███▓ ▒▒▓▓▓░░▓█▒▒▒░ ▒▒▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒░░░▒▒▒▒▒▒▒▒▒▒▓▓▒▓▓▓▓▓▓▓███▓█▓▓▓▓▓▓▓▒▒░ ░▒██▓ ▒▒ ▓█▓▒▒▒ ██░▒▒▒▒▒▒▓▓▓▓███████ //
// █████████▓▒▒░░▓▓▓ ██▓▓▒▒█▓▒█▓▓▓ ▒▒▓▒░▓█▓▒ ▒░▓▓▓▓▓▓▓▓▒▒▒░░░░░░░░ ░░ ░░▒░▒▒▒▒▓▓▓▓███▓█▓▓▓▓▓▓▒▒░ ▓▓▓▒▒ ░▒▓▓▒ █▓▒▒▒▒▒▒▓██▓▓▓▓▓████ //
// █████████▒▒▓░▓▓▒▒▓█▓▒▒ ░▒▓▓▒█▓▓▓ ▒ ▓▓▒░ ░ ░▒▒▓██▓▓▓▓▓▒░░ ░ ░ ░▒▒▒░░▒▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▒░░ ▒▓▓▒ ░▓▒ █▓░▒▒▓▓█████████████ //
// ▒▒▒▓██████▓▓▓▓████▓▓█▒▒▓▓▒▓▒█▓▒░░▒██░ ░▒▒▒████▓▓▓▒▒░ ▒▓▒░░░░░▒░▒▒▒▒▒▓█▓▓▓▓▓▓▓▒░░ ▒▓▓▒ ▓ ▓▓▒▒▓▓▓▓▓▓▓▓▓███████ //
// ▓▓▒░░▓▓▓▓█▓▓████████▓▓▓▓▓▓▓▓▓▒░▒▓▓▒░░░▒▓████▓▓▒▒ ▒▒░ ░▓█▓▓▓▓▓░▒░░ ░░░░░▒▒░░░▒▒▓▓██▓▓▓▓▓▒▒ ░▓▓░▓▒▓▓▒▒▒▒▒▒▒▓▓▓▓▓▓█████ //
// █▓▓▓▒▒▒▒▒▒▓▒▒▒▓█████▓▓▓▓▓██▓▒░▓▓▒ ░░▒▓████▓▓▒░ ▒▒▒▒▓▓▒▓▓▓█▓▒▒░ ░░░░░░▒▒▒▒▒▓▓█▓▓▓█▓▒░░░▒▒▒▓▒▓▓▒▒▒▒▒▒▒▒▒▒▒▒▓▓███ //
// ▒░ ░░▒▒░░▒░░▒ ▒█████▓▓█▓█▓░▒▓▓▒░▒▒▓████▓▒░ ░▒░ ░▓▓▒░ ░▒▓█▓▓▓▓▓▒▒ ░░░▒░░░░░▒▒▒▒▓▓▓▓▓█▒░▒ ▒▒▓▒▒▓▒▒▒▒▒░░▒░░░▒▒▒▓█ //
// ▒ ░▒▒░▒▒░░░░ ▒▒ ▓▓█████▓█▓░░▓▒ ▒▒▒███▓▓▒░ ░░░░░░░░ ░▒▒ ░░▒▓▓▒▒▒▓▓█▓▒ ░░░░▒▒▒░░░▒▒▒▓▓▓▓▓▓▒▒░ ▒▒▓▒▒▓▒▒░ ▒▒▒▒▒▓▓▓▓█ //
// ▓▒░▒▒▒░▒▒▒░▒░░ ▒▒▓██▓█▓░░▓▒ ▒▒▓█▓▓▓░ ░ ▒▓▓░ ░░░░░░▒▒▒▒▓▓▓▓▓▒▒░ ▒▒▓▒▒▒░░ ░▒░░░░▒▒▓▒▓ //
// ▒▓▓▒▒░░ ▒░▒░░ ░░░ ▒▒▒▓▓▓▒░▒▒ ▒▒▓█▓▓▒░░ ░░░░▒▒▒▒▒░░░░ ░ ░ ▒▒▒▒▒▒▓▓▓█▒ ░▓██▓▓▓▓█▓░▒ ▒██▓ ░░░░░░░░░░▒▒▓▓▓▒▒░░▒▒▓▒▒▒░ ░▒░░░░░░░ //
// ▒▒▓▓▒░ ░░░ ░░░ ░ ▓▓▒ ░▒ ░▒░▒░░░░░░░▒░░░░░░ ░░░ ░ ▓████▓▓▓███ ▒███████████▒ ▒████ ░░░░▒▒▒▒▒▒▒ ▒▒▓░▒░ ░░░░░░░░ //
// ▒░▓▓▒▒▒ ░ ▒▒░░░▓▓░░▒░░░░▓▒▒▒▒▒▒▒▒▒▒▒▒▒░ ░░░░░░░░░░░ ░▒▒░░▓▓▓▒▓▓▓██ ▒███▓▓▓▓▓▓████▓█████ ░ ░░▒▒▒▒▓▒▒░▒ ▒▒▓▒▒░ ░░░░ //
// ▒▒▓▓▒▒▒▒▒▒▒▒░░▓▒▓▒░▒▒█▓▒░▒ ▒░▓▓▓▓▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒▒░░░░░░░░ ▓███▒ ▓███▒░████▓▒▓▓▓▓▓▓▓█▓▒ ░░▒▒▒▓▓▒▒▒░ ░▓▓▒▓▒▒░▒▒░ ░░ ░ //
// ▒▒▒▒▒▒▒▒▓█▓▓▓▒░ ▒▒▒░▓█▓░▒░ ▒▒█▓▓▒░░ ░ ░ ░░░░░░░ ░░▒ ░▒▒▒▒▒░ ▒▓▓▓▓▓████▒ ░▒▓▓▓▓▓▓█████░ ▓███▒▒▒▓▓▓▓▓▓▓▒▓▓▒░░░▒░▒▓▓▒▒▒ ▓▓▓▒████████▒ ░ //
// ▒▒▓▒▒▒▒▒░▓█▓ ░▒▓██▓░▒░▒▒▓█▓▓▒░ ░░▒▓▓▒▒▒▓▓▒░░ █████████▓▓░ ▓███████████▓▒ ▓███▓ ░ ░ ▒▓▓▒░░ ▓█▒▒▓ ▒▒█▒██████████░ ░ //
// ▓▒▓▒▒▒▒▒░░▓░░░░░░░░▒██▓░▒▒▒▒▓▓▓▓░░░ ░███▓▒▒▓▓▒▒░░ ░█████▒▒░░ ▒████▒ ░░░ ▒████▒ ░░ ░▒░ ▓▒▓█▒▒░░░░▒█▓░▓▒░░█▒████████████░ //
// ▓▒▓▓▒▒▒▒▒░░░░░░░░░ ░██▓░▒▒░▓▓▓▒▓░░░░ ▓▓▒ ░░░ ░░▒░ ████ ████▒ ░░░░ ▒████▒▒░ ░▒░ ░░▒▓▓█▓▒░░░▒▒▒█▓░▒▒▒ █▓████████████▓ //
// ▓▒▓▓▓▒▒▒▒▒▒░░░░░░░░ ▒██░▒▒ ▒▓█▒▓░ ░░ ▒▓▒ ▒░ ░▒▒ ░▒▒░ ████ ░ ░░ ██▓▓██████████░ ████░▒▓░ ░ ░░▒▓▓█▒░░░░░░▓█▓▒▒ ▓▒█▓████▓▓███████ //
// ▓▓▓▒▒▒▒▒▒▒▒▒░░░░░░░ ▓█▒▒▒░▓▒█▒▓▒░░░ ░▓▓░░▒ ░ ░ ████▒ ░░ ██████████████▒ ████░ ░░ ▒░ ░░▓▓▓░ ░░░▒█▓▒▒▒▒▒▒█▓███▓█▓▓▓▓▓▓██ //
// ▓▒▓▒▒▒▒▒▒▒▒▒░░░ ░██▓▒▓▒░▒▓█▒▓░░ ░█▓░ ▒▒░▒ ░░ ░░░▒░░ ░ ▒░ ▒ ▒▓▓▓░ ░░░░▓█▓▒▓░▒░▓▓████▓█▒ ███ //
// ▓▒▒▒▒▓▒▒░░▓▒░░ ░▒▓██▓▒▒▒ ▓▒██▓▒░ ▓▓▒▒▒▒▒▒▒▒ ▒░░ ░ ░░ ░░ ░ ▒▒▓▒ ░░▒▓█▓░░ ░░▒▓▓▒▓▒ ▓▒█▓█████▓▓▓░ ▓██ //
// ████▓▒▒▒▓▒▓█▒▒▒▒▓▓▒▒▓▓▒█▓▒▒░░▓░▓▓▓▒ ▓▓▓▓▒▒▓▒▒▒ ▒▒▒▒ ░▓▒▒▓▓▓░ ▒▒░▒▒▓▒ ▒▓▒▒▓░ ░▒▒░░ ░▓█▓█▓▓▒▓██▒░ ▒▓▓▒▓▒░▒░█████████▓▓█▓▓██▓ //
// ████▓▒▓███▓█▓▓▓▓▒▓▓ ░ ░▓▓▓▒▒░ ▒▒▓█▓▒░ ▒▓█▓▒█░ ░▓▓▒▓▒ ░░▓▓█▓▓ ░░ ▒▓▒▓░ ░ ▓▒▓█░ ░ ▓▓▒▓▒▒▒ ░███▒▓███▒░ ▒▓▓▒▓▒ ░▒▓██▓▒ ▒▓█████████ //
// ▓▓▓█▓██▓█████████▓▓▒░░ ▒▓▓▓░▒░░▒▒▓▓▓▓░ ░▒██▓▒ ░▓▓█▓▒▒ ░▓▒▓▓▒▒▒ ▓▓▓▓▒░ ▒▓▓▓▒░░▒░▓█▓▓▓▒ ░▓░▒▓██▓▒ ▓▓▓▒▓▒ ░▒▓█▓██▓▒ ▓████▓██▓▒ //
// █▒▓█▓███▓▓▓█▓░░▒▒▓██▓▓▓▒▓█▓▓▒▒░ ░▓▓▓▓▓▒░ ░▓█▓▒░▒▓▒▒▒▒▒▒░▒▓░░▒░▒▒░░▓▓ ░░▒▒░▒▓▒▒▒░▓░▒▒▒░▒ ▓▒░░▒▒▓███▒░ ▒▓▓▒▓▓░ ░░▓████████████░ ▓█▒░▓ //
// ▓▒▓▓▓▓█▓█▓▓██▓▒▓▓▒▒▓▒▒▓▓▓▓█▓▓▒░▒ ▒▒▓▓▓▓▒░ ░▓██████████████████████████████████████████▓████████▒░ ░▒▓▓▒▓▓▒ ▒▒▒▓████████████████▓░▒▓ //
// ██▓▓▓▓▓█▓█▓███▓▓██▒▒▒▒▓██▓▓█▓▓▓▒▒░ ░▒▓▒▓▓▓▒▒░ ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒ ░▒▒▒▒▒▓▓▒ ░▒▒██████████████████░▒▓▒ //
// ████▓▒▓▓▓▓▓██▓▒▒▓▒▒▓▓▓███▓▓▓█▓▓▓▓▒▒▒░ ▒▓▓▓▓▓▓▒░░ ░▒▒░░▒▒▓▓▒ ░░▒████████▓▒▒▒▓█████▓░░░▓▓ //
// ██████▓▓▓▓▓▓█▓▒▓▓▓▓▓▒▓████▓▓▓▓▓▓▓▓▓▒▒░ ▒▒▒▓▓▒▒▒▒▒░░░ ░░░▒ ░▒▓▓▒▒▒▒░▒▓█████▓██▓ ░████▒ ░▒▒▒▒ //
// ▓▓▓████▓▓▓▓██▓▓▓▓▓▓▓▓██▓███▓▓▓▓▓▓▓▓▓▓▓▒░░ ░▓▓▓▓▒▒▒░░░░░░ ░░░░░░ ▒▒▓▓▓▒░ ▒▓░▓██████▓████▓▒▓▓████▓▓▓▒▒▒▒▓ //
// ███▓▓████▓▓██▓▓▓▓▓▓▓▒▒▒▒▓████▓▒▒▒▒▓▓██▓▒▒▒ ░░▒▓▓▓▓▓▒▒░░ ░ ░░░ ░ ▒▒▓█▒▒▒ ░░░▓█▒███████████████████████▓░░░▓ //
// █▓██▓▓████▓██▓▓▓▓▒▒▒▒▒▓██████▓▓▓▓▓▓▓▓▒▒▓▓▓▓▒▒▒░ ░░▓▓▓▓▓▓▒▒░░░ ░ ░ ░░▒▓▓▓▓▒▒░░ ▒▒▒▓▓▓██▒██▓▓▒▒▓████████████▓▒▒▒░▒▒░░ //
// ▓▒▓▓▓▓▓████▓█▓▓▓▒▓▓▓██▓▒▓███▓▓▓▓▓▓▓▒░░ ▒░▒▓▓▓▓▒▒░ ░░▒▓▓▓▓▓▓▓▓▒▒░░░░ ░░░▒▒▒▓█▓▓▓▒▒░░░ ░ ▒▒▓████▒▒▓▓▓▒ ░▒▓▓▓▓██████▓░ ▒▒░░▒▒ //
// ███▓▓▓▓▓█████▓█▓███▓▓▒▓▓▓███▓▓▓▓▓▓▓▓▒░ ▓▒ ▒░▓██▓▓▓▓▓▒ ░▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒░ ░▓▓▒▒▓████▓▓▓░ ▓▓▓ ░▓████████▓▒ ▓▓ //
// ▒▒▓████▓▓███████▓▓▒▒▓▓▓▒▓████▓▓▓▓▓▓▓▓▓▒▒▓▓▓▒▒▒░▒▓▓▓▓▓▓▓▓▒▒░░ ▒░▒░▒▒░ ▒░ ▒░░▒▒▒▒▒▓▓▓█▓██▓▓▓░░▒▒ ▒▓██ ░ ▒▓████▓▒▓ ▒█ //
// ▒▒▒▒▓███▓▓█████▓▓▓█▓▓▓▓▓██████████▓▓█▓▓▓▓▓░▓░ ▒▒▒░▓▓█████▓▓▓▓▓▒▒▒▒▒░ ░▒ ░░ ░░░ ▒▒░░▒▓▒▒▒▓█▓████▓▒█▒▒░ ▒▓▓▒▒ ▒▒███ ▒██▓ ▓█ //
// ▓▓▓▒▒▓▓█████████▓▓▓▓▓▓▒░░█▓▓▒▓▓▓██████▓▓▓▓ ▒ ▓▓▓▒▒▓▒▒▓▓▓▓▓▓█████▓███▓▓▓▓▓▓▓▓▓▓▓▓▓▓███▓██▓███▓▓▓▒░▒▒▓▓▒ ░▓▓▒ ▒▓███▓ ▓███▒▒▓██ //
// ▒▒▒▒▒░▒▒▓▓████▓▓▒▒▒▒▒▒▓▓█▓░░░ ▒▓████▓▓▓░▒░░ ▓▒▓▓▓▓ ▒▒░ ░ ░▒▒▒▒▒▓▓█▓███▓█████████▓▓▓▓█▓▓▒▓░░░▒▓▓▓▓█▓▒▒░ ▒░ ▒▒ ▓▒████░ ░ ▒█████▓▒▓ //
// ▒▓▓▒▒▒▒▒▒▒▓██▓▒▒▓▓▓▓▓▓▓██▒▒▒░░░░░ ▒████▓██ ▒▒░░▓▒███▒ ▒ ▒▓▓▓▓▓▒░░ ▒▓▒░▒▒▒░▒▓▓░▓▒▒ ▒▓▓▓▓▒▒▒ ▒██▓▓▓▒▒ ░▒░ ▓█▓░ ░ ▒▒█████░ ░ ▒▒████▒ //
// ▓▓▓▓▓▒▒▒▒▒▒▒▒▒▓▓▓▓▓▓▓▓▓█▓▒▓▓▒▒░░░░▒███████░▒▓░ ▓▒▓▓▓▒░▒ ▒▓▓▓▓█▓▓▒▒ ░▒▓░ ▒▒ ░▓▓▓▒ ░▓█▓▓▓▓▒▒▒░▒▓▒░░░▒▒▒░▒░░▒▒▓▓▒ ▒░█████▒░ ▒░░█▓██▓ //
// ▓▓▓▓▓▓▒▒▒▒▒▓▒▒▓▓▓▓▓▓▓▓▓█▓▓██▓▒░░░ ▒███████░▒ ▓▒█▓▓▓▒▒ ▒█ ▓▓▒▒▓▒▓░ ▓▓ ▒ ▓▓░ ▒█▒▓▓▒▒▒▒▒ ░░▓▓▒▓▒ ░▓▒ ░▓▓░░▒██▓████▓▒ ░ ▓ ▒████▓░▒ //
// ▓▓▓▓▓▓▓▒▒▒▒▒▓▒▒▓▓▓▓▓▓▓██▓▒██▒▒▓▓▓▒▓███████░▒░ ▒▒██▓▓▒▓ ▓▓▒▓░░▓▒▒▒ ▒▓░▒░░ ░▒▓▒▓▒▓▒▒▒ ░▓█▓██▓▓▒▓▒ ▒▓▒░░▒▓███▓████▒▓█▓ ▒▒▓█▓███▓▒░ //
// ▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▓▓▓▓▓███▓▓█▓▒▒▓▓▓▓████████▒▓▓▒░▒░█▓▓▓▓▒▒░ ▒▓▓█░░▓▓▓ ░▒▓░▒▒ ░░▒▒ ░ ▒▓▓▓▓▓▒░ ▒█▓▒▒▒▒▒▒█▒ ▒█▒▒▒▓█████████▓ ▓█▒ ░ ▒▒▒█▒ ▓██▒ //
// ▓▓▓▓▓▓▓▓▓▒▒▓▒▒▓▒▒▓█▓███████▓▒▓▓▒▓▓█████▓▓▓█████▓░▓█▓▓█▓▓▒ ░ ▓▓▓▒▒▒▒ ░▒█▒▒▒▒░▒▒██▓░▒ ▒▒▓▓▓▓▒▒▒░░ ░ ░ ░▒█▒▓██████████████▓█▓▓▒█▓▒ ▒▓ █▓▒ ▓██▓░ //
// ▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒▓███████▓▓██▓█████▓▓▓█▓███████▓▓▓▓▓▓▓█▓▓▒░ ░▒███▓▒░░ ▓█▒▓▓▒░ ▒░▒▒▒░░ ░▒▒▓▓▓▓▓█▓▒▓███████████████▓▓█▓▓ ▒▓░▓▓▒▓▓██▓ //
// ▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▓▓▒▓█████▓▓█████▓▓█▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓████▓▒▒░▒▒▒▓▓████▒░ ▒▓ ██▓▒ ░░▒▓▒▒▒▒▓▓▓▓▓█▓█▓▓▓▒▒░▒█████████▓███▓▓▓██▓▒▓▒▓▓██▓█████▒ //
// ██▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒░▓█████▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓██████▓▓▓██▓▓▓▓▒▓▓▓▓▓ ▓▓█▓▓▓▓▓▓▒▒▓██████▓▓▒▒▒▒░░ ▒█████████▓███▓▓███▓▓▓██████████▓▒ //
// //
// //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
contract METAPOSTERS is ERC721Creator {
constructor() ERC721Creator("METAPOSTERS", "METAPOSTERS") {}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 internall 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 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
}
}
}
{
"compilationTarget": {
"contracts/METAPOSTERS.sol": "METAPOSTERS"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 300
},
"remappings": []
}
[{"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"}]