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Similar Match Source Code This contract matches the deployed ByteCode of the Source Code for Contract 0xFC529276263392E0032953D5D1c9Ae96c66DF82c The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
UpgradableProxy
Compiler Version
v0.7.6+commit.7338295f
Contract Source Code (Solidity)
/** *Submitted for verification at cronoscan.com on 2022-06-18 */ // SPDX-License-Identifier: MIT pragma solidity 0.7.6; interface IERCProxy { function proxyType() external pure returns (uint256 proxyTypeId); function implementation() external view returns (address codeAddr); } abstract contract Proxy is IERCProxy { function delegatedFwd(address _dst, bytes memory _calldata) internal { // solium-disable-next-line security/no-inline-assembly assembly { let result := delegatecall( sub(gas(), 10000), _dst, add(_calldata, 0x20), mload(_calldata), 0, 0 ) let size := returndatasize() let ptr := mload(0x40) returndatacopy(ptr, 0, size) // revert instead of invalid() bc if the underlying call failed with invalid() it already wasted gas. // if the call returned error data, forward it switch result case 0 { revert(ptr, size) } default { return(ptr, size) } } } function proxyType() external pure virtual override returns (uint256 proxyTypeId) { // Upgradeable proxy proxyTypeId = 2; } function implementation() external view virtual override returns (address); } contract UpgradableProxy is Proxy { event ProxyUpdated(address indexed _new, address indexed _old); event ProxyOwnerUpdate(address _new, address _old); bytes32 constant IMPLEMENTATION_SLOT = keccak256("matic.network.proxy.implementation"); bytes32 constant OWNER_SLOT = keccak256("matic.network.proxy.owner"); constructor(address _proxyTo) { setProxyOwner(msg.sender); setImplementation(_proxyTo); } fallback() external payable { delegatedFwd(loadImplementation(), msg.data); } receive() external payable { delegatedFwd(loadImplementation(), msg.data); } modifier onlyProxyOwner() { require(loadProxyOwner() == msg.sender, "NOT_OWNER"); _; } function proxyOwner() external view returns (address) { return loadProxyOwner(); } function loadProxyOwner() internal view returns (address) { address _owner; bytes32 position = OWNER_SLOT; assembly { _owner := sload(position) } return _owner; } function implementation() external view override returns (address) { return loadImplementation(); } function loadImplementation() internal view returns (address) { address _impl; bytes32 position = IMPLEMENTATION_SLOT; assembly { _impl := sload(position) } return _impl; } function transferProxyOwnership(address newOwner) public onlyProxyOwner { require(newOwner != address(0), "ZERO_ADDRESS"); emit ProxyOwnerUpdate(newOwner, loadProxyOwner()); setProxyOwner(newOwner); } function setProxyOwner(address newOwner) private { bytes32 position = OWNER_SLOT; assembly { sstore(position, newOwner) } } function updateImplementation(address _newProxyTo) public onlyProxyOwner { require(_newProxyTo != address(0x0), "INVALID_PROXY_ADDRESS"); require( isContract(_newProxyTo), "DESTINATION_ADDRESS_IS_NOT_A_CONTRACT" ); emit ProxyUpdated(_newProxyTo, loadImplementation()); setImplementation(_newProxyTo); } function updateAndCall(address _newProxyTo, bytes memory data) public payable onlyProxyOwner { updateImplementation(_newProxyTo); (bool success, bytes memory returnData) = address(this).call{ value: msg.value }(data); require(success, string(returnData)); } function setImplementation(address _newProxyTo) private { bytes32 position = IMPLEMENTATION_SLOT; assembly { sstore(position, _newProxyTo) } } function isContract(address _target) internal view returns (bool) { if (_target == address(0)) { return false; } uint256 size; assembly { size := extcodesize(_target) } return size > 0; } }
[{"inputs":[{"internalType":"address","name":"_proxyTo","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_new","type":"address"},{"indexed":false,"internalType":"address","name":"_old","type":"address"}],"name":"ProxyOwnerUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_new","type":"address"},{"indexed":true,"internalType":"address","name":"_old","type":"address"}],"name":"ProxyUpdated","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxyOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxyType","outputs":[{"internalType":"uint256","name":"proxyTypeId","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newProxyTo","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"updateAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_newProxyTo","type":"address"}],"name":"updateImplementation","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Deployed ByteCode Sourcemap
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Swarm Source
ipfs://59551fbbee5f4f7c9161fa1c556c3ac008e38f3a10f73237fe9a96eae445f2eb
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