Contract Source Code (Solidity)

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Outline

• library StorageSlot
•    - function getAddressSlot(
•  contract Proxy *
•    - function upgradeTo(address _implement ...
•    - function _getAdmin()
•    - function _setAdmin(address _admin)
•    - function _getImplementation()
•    - function _setImplementation(address _ ...
•    - function _fallback()
•    - function _delegate(address impl)

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/**
 *Submitted for verification at Etherscan.io on 2024-07-05
*/

// Sources flattened with hardhat v2.16.1 https://hardhat.org

// File contracts/Common/Proxy.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

library StorageSlot {
    struct AddressSlot {
        address value;
    }

    function getAddressSlot(
        bytes32 slot
    ) internal pure returns (AddressSlot storage r) {
        assembly {
            r.slot := slot
        }
    }
}

contract Proxy {
    bytes32 private constant IMPLEMENTATION_SLOT =
        bytes32(uint(keccak256("eip1967.proxy.implementation")) - 1);
    // 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103
    bytes32 private constant ADMIN_SLOT =
        bytes32(uint(keccak256("eip1967.proxy.admin")) - 1);

    constructor(address _admin, address _implementation) {
        _setAdmin(_admin);
        _setImplementation(_implementation);
    }

    function upgradeTo(address _implementation) external {
        require(msg.sender == _getAdmin(), "admin only");
        _setImplementation(_implementation);
    }

    function _getAdmin() private view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    function _setAdmin(address _admin) private {
        require(_admin != address(0), "admin = zero address");
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = _admin;
    }

    function _getImplementation() private view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    function _setImplementation(address _implementation) private {
        require(_implementation.code.length > 0, "implementation is not contract");
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = _implementation;
    }

    function _fallback() private {
        _delegate(_getImplementation());
    }

    fallback() external payable {
        _fallback();
    }

    receive() external payable {
        _fallback();
    }


    function _delegate(address impl) 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(), impl, 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())
            }
        }
    }
}

[{"inputs":[{"internalType":"address","name":"_admin","type":"address"},{"internalType":"address","name":"_implementation","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"_implementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000bc5986d8455ff29d7ef1fa8e0afdc4c86fa8c58b000000000000000000000000c1adfda6d8a869d60583f0788fbf8ed81b373b98

-----Decoded View---------------
Arg [0] : _admin (address): 0xBC5986d8455ff29d7EF1Fa8e0aFdc4C86FA8C58b
Arg [1] : _implementation (address): 0xc1AdFda6d8A869D60583F0788fBF8ED81B373B98

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000bc5986d8455ff29d7ef1fa8e0afdc4c86fa8c58b
Arg [1] : 000000000000000000000000c1adfda6d8a869d60583f0788fbf8ed81b373b98

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ipfs://4ee1d4d7135f0384dd8831515834d8886f911c9d5d677b1ef8fb38f171511338