Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract Proxy *    - function setImplementation(address ne ...    - function implementation()    - function _delegate(address implementa ...    - function _implementation()

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2021-12-15
*/

// SPDX-License-Identifier: MIT

pragma solidity 0.8.7;

/**
 * @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.
 */
contract Proxy {

    address implementation_;
    address public admin;

    constructor(address impl) {
        implementation_ = impl;
        admin = msg.sender;
    }

    function setImplementation(address newImpl) public {
        require(msg.sender == admin);
        implementation_ = newImpl;
    }
    
    function implementation() public view returns (address impl) {
        impl = implementation_;
    }

    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internall 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 {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view returns (address) {
        return implementation_;
    }


    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _delegate(_implementation());
    }

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"impl","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"impl","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newImpl","type":"address"}],"name":"setImplementation","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

670:2148:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;2777:28;2787:17;2475:7;2502:15;-1:-1:-1;;;;;2502:15:0;;2425:100;2787:17;2777:9;:28::i;:::-;670:2148;1003:102;;;;;;;;;;-1:-1:-1;2475:7:0;2502:15;-1:-1:-1;;;;;2502:15:0;1003:102;;;-1:-1:-1;;;;;469:32:1;;;451:51;;439:2;424:18;1003:102:0;;;;;;;857:134;;;;;;;;;;-1:-1:-1;857:134:0;;;;;:::i;:::-;;:::i;724:20::-;;;;;;;;;;-1:-1:-1;724:20:0;;;;-1:-1:-1;;;;;724:20:0;;;1314:922;1659:14;1656:1;1653;1640:34;1879:1;1876;1860:14;1857:1;1839:16;1832:5;1819:62;1958:16;1955:1;1952;1937:38;1998:6;2067:68;;;;2186:16;2183:1;2176:27;2067:68;2103:16;2100:1;2093:27;857:134;941:5;;-1:-1:-1;;;;;941:5:0;927:10;:19;919:28;;;;;;958:15;:25;;-1:-1:-1;;;;;;958:25:0;-1:-1:-1;;;;;958:25:0;;;;;;;;;;857:134::o;14:286:1:-;73:6;126:2;114:9;105:7;101:23;97:32;94:52;;;142:1;139;132:12;94:52;168:23;;-1:-1:-1;;;;;220:31:1;;210:42;;200:70;;266:1;263;256:12;200:70;289:5;14:286;-1:-1:-1;;;14:286:1:o

ipfs://9a3b90ebe87548716a7a376a329a95f6849eb347f8e2e6114ccea44868fc2aac