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Read Proxy
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Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- SafeProxy
- Optimization enabled
- false
- Compiler version
- v0.7.6+commit.7338295f
- EVM Version
- default
- Verified at
- 2024-05-20T14:37:00.742868Z
Constructor Arguments
000000000000000000000000737874e98748cd788ae23cb8aaa10b482ed514c8
Arg [0] (address) : 0x737874e98748cd788ae23cb8aaa10b482ed514c8
contracts/proxies/SafeProxy.sol
// SPDX-License-Identifier: LGPL-3.0-only /* solhint-disable one-contract-per-file */ pragma solidity >=0.7.0 <0.9.0; /** * @title IProxy - Helper interface to access the singleton address of the Proxy on-chain. * @author Richard Meissner - @rmeissner */ interface IProxy { function masterCopy() external view returns (address); } /** * @title SafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. * @author Stefan George - <[email protected]> * @author Richard Meissner - <[email protected]> */ contract SafeProxy { // Singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /** * @notice Constructor function sets address of singleton contract. * @param _singleton Singleton address. */ constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } }
Compiler Settings
{"outputSelection":{"*":{"*":["*"],"":["*"]}},"optimizer":{"runs":200,"enabled":false},"metadata":{"useLiteralContent":true},"libraries":{}}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_singleton","internalType":"address"}]},{"type":"fallback","stateMutability":"payable"}]
Contract Creation Code
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
Deployed ByteCode
0x608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea26469706673582212208a5d0a524af506957833f98ede4f74b7ba984224714a0bad2daa0db3d4413ee364736f6c63430007060033