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Read Proxy
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Write Proxy
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- MERC1967Proxy
- Optimization enabled
- true
- Compiler version
- v0.8.24+commit.e11b9ed9
- Optimization runs
- 200
- EVM Version
- london
- Verified at
- 2024-10-31T03:04:22.452216Z
Constructor Arguments
0x000000000000000000000000ef2ffe917800d2144d6b4603cf966a7eebe93d6f00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000
Arg [0] (address) : 0xef2ffe917800d2144d6b4603cf966a7eebe93d6f
Arg [1] (bytes) :
contracts/ERC1967Proxy.sol
// SPDX-License-Identifier: MITpragma solidity ^0.8.24;import "@openzeppelin/contracts/proxy/Proxy.sol";import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";contract MERC1967Proxy is Proxy {/*** @dev Initializes the upgradeable proxy with an initial implementation specified by `implementation`.** If `_data` is nonempty, it's used as data in a delegate call to `implementation`. This will typically be an* encoded function call, and allows initializing the storage of the proxy like a Solidity constructor.** Requirements:** - If `data` is empty, `msg.value` must be zero.*/constructor(address implementation, bytes memory _data) payable {ERC1967Utils.upgradeToAndCall(implementation, _data);}/*** @dev Returns the current implementation address.** TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using* the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.* `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`*/function _implementation() internal view virtual override returns (address) {return ERC1967Utils.getImplementation();}}
@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)pragma solidity ^0.8.20;import {IBeacon} from "../beacon/IBeacon.sol";import {Address} from "../../utils/Address.sol";import {StorageSlot} from "../../utils/StorageSlot.sol";/*** @dev This abstract contract provides getters and event emitting update functions for* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.*/library ERC1967Utils {// We re-declare ERC-1967 events here because they can't be used directly from IERC1967.// This will be fixed in Solidity 0.8.21. At that point we should remove these events./*** @dev Emitted when the implementation is upgraded.*/event Upgraded(address indexed implementation);/*** @dev Emitted when the admin account has changed.*/event AdminChanged(address previousAdmin, address newAdmin);/*** @dev Emitted when the beacon is changed.*/event BeaconUpgraded(address indexed beacon);/*** @dev Storage slot with the address of the current implementation.* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.*/// solhint-disable-next-line private-vars-leading-underscorebytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;/*** @dev The `implementation` of the proxy is invalid.*/
@openzeppelin/contracts/proxy/Proxy.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (proxy/Proxy.sol)pragma solidity ^0.8.20;/*** @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 {
@openzeppelin/contracts/proxy/beacon/IBeacon.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)pragma solidity ^0.8.20;/*** @dev This is the interface that {BeaconProxy} expects of its beacon.*/interface IBeacon {/*** @dev Must return an address that can be used as a delegate call target.** {UpgradeableBeacon} will check that this address is a contract.*/function implementation() external view returns (address);}
@openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)pragma solidity ^0.8.20;/*** @dev Collection of functions related to the address type*/library Address {/*** @dev The ETH balance of the account is not enough to perform the operation.*/error AddressInsufficientBalance(address account);/*** @dev There's no code at `target` (it is not a contract).*/error AddressEmptyCode(address target);/*** @dev A call to an address target failed. The target may have reverted.*/error FailedInnerCall();/*** @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].*/function sendValue(address payable recipient, uint256 amount) internal {
@openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.pragma solidity ^0.8.20;/*** @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(newImplementation.code.length > 0);* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;* }* }* ```*/library StorageSlot {struct AddressSlot {address value;}struct BooleanSlot {bool value;}struct Bytes32Slot {bytes32 value;
Compiler Settings
{"outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers","metadata"],"":["ast"]}},"optimizer":{"runs":200,"enabled":true},"libraries":{},"evmVersion":"london"}
Contract ABI
[{"type":"constructor","stateMutability":"payable","inputs":[{"type":"address","name":"implementation","internalType":"address"},{"type":"bytes","name":"_data","internalType":"bytes"}]},{"type":"error","name":"AddressEmptyCode","inputs":[{"type":"address","name":"target","internalType":"address"}]},{"type":"error","name":"ERC1967InvalidImplementation","inputs":[{"type":"address","name":"implementation","internalType":"address"}]},{"type":"error","name":"ERC1967NonPayable","inputs":[]},{"type":"error","name":"FailedInnerCall","inputs":[]},{"type":"event","name":"Upgraded","inputs":[{"type":"address","name":"implementation","internalType":"address","indexed":true}],"anonymous":false},{"type":"fallback","stateMutability":"payable"}]
Contract Creation Code
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Deployed ByteCode
0x6080604052600a600c565b005b60186014601a565b6051565b565b6000604c7f360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc546001600160a01b031690565b905090565b3660008037600080366000845af43d6000803e808015606f573d6000f35b3d6000fdfea26469706673582212204f87910e3c977d06090c9095f240adc26689787601994d3aeb03ca5db60b394364736f6c63430008180033