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Parent Transaction Hash | Block | From | To | |||
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14847179 | 923 days ago | Contract Creation | 0 ETH |
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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0x62384502...438E1346F The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
Proxy
Compiler Version
v0.8.7+commit.e28d00a7
Contract Source Code (Solidity Standard Json-Input format)
// hevm: flattened sources of contracts/Proxy.sol // SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.7 <0.9.0; ////// contracts/SlotManipulatable.sol /* pragma solidity ^0.8.7; */ abstract contract SlotManipulatable { function _getReferenceTypeSlot(bytes32 slot_, bytes32 key_) internal pure returns (bytes32 value_) { return keccak256(abi.encodePacked(key_, slot_)); } function _getSlotValue(bytes32 slot_) internal view returns (bytes32 value_) { assembly { value_ := sload(slot_) } } function _setSlotValue(bytes32 slot_, bytes32 value_) internal { assembly { sstore(slot_, value_) } } } ////// contracts/interfaces/IDefaultImplementationBeacon.sol /* pragma solidity ^0.8.7; */ /// @title An beacon that provides a default implementation for proxies, must implement IDefaultImplementationBeacon. interface IDefaultImplementationBeacon { /// @dev The address of an implementation for proxies. function defaultImplementation() external view returns (address defaultImplementation_); } ////// contracts/Proxy.sol /* pragma solidity ^0.8.7; */ /* import { IDefaultImplementationBeacon } from "./interfaces/IDefaultImplementationBeacon.sol"; */ /* import { SlotManipulatable } from "./SlotManipulatable.sol"; */ /// @title A completely transparent, and thus interface-less, proxy contract. contract Proxy is SlotManipulatable { /// @dev Storage slot with the address of the current factory. `keccak256('eip1967.proxy.factory') - 1`. bytes32 private constant FACTORY_SLOT = bytes32(0x7a45a402e4cb6e08ebc196f20f66d5d30e67285a2a8aa80503fa409e727a4af1); /// @dev Storage slot with the address of the current factory. `keccak256('eip1967.proxy.implementation') - 1`. bytes32 private constant IMPLEMENTATION_SLOT = bytes32(0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc); /** * @dev The constructor requires at least one of `factory_` or `implementation_`. * If an implementation is not provided, the factory is treated as an IDefaultImplementationBeacon to fetch the default implementation. * @param factory_ The address of a proxy factory, if any. * @param implementation_ The address of the implementation contract being proxied, if any. */ constructor(address factory_, address implementation_) { _setSlotValue(FACTORY_SLOT, bytes32(uint256(uint160(factory_)))); // If the implementation is empty, fetch it from the factory, which can act as a beacon. address implementation = implementation_ == address(0) ? IDefaultImplementationBeacon(factory_).defaultImplementation() : implementation_; require(implementation != address(0)); _setSlotValue(IMPLEMENTATION_SLOT, bytes32(uint256(uint160(implementation)))); } fallback() payable external virtual { bytes32 implementation = _getSlotValue(IMPLEMENTATION_SLOT); require(address(uint160(uint256(implementation))).code.length != uint256(0)); assembly { calldatacopy(0, 0, calldatasize()) let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) switch result case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "metadata": { "bytecodeHash": "none" } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"factory_","type":"address"},{"internalType":"address","name":"implementation_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}]
Deployed Bytecode
0x60806040526000602d7f360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc5490565b90506001600160a01b0381163b604257600080fd5b3660008037600080366000845af43d6000803e8080156060573d6000f35b3d6000fdfea164736f6c6343000807000a
Deployed Bytecode Sourcemap
1412:2068:0:-:0;;;2921:22;2946:34;1857:66;527:12;;407:148;2946:34;2921:59;-1:-1:-1;;;;;;2999:53:0;;;2991:76;;;;;;3120:14;3117:1;3114;3101:34;3221:1;3218;3202:14;3199:1;3183:14;3176:5;3163:60;3258:16;3255:1;3252;3237:38;3296:6;3315:66;;;;3430:16;3427:1;3420:27;3315:66;3350:16;3347:1;3340:27
Swarm Source
none://none
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