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•  contract RewardsDistributorDelegat ... *
•  contract RewardsDistributorDelegat ... *
•    - function _setImplementation(address i ...
•    - function delegateTo(address callee, b ...
•    - function ()

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/**
 *Submitted for verification at Etherscan.io on 2021-10-02
*/

// Sources flattened with hardhat v2.6.4 https://hardhat.org

// File contracts/RewardsDistributorStorage.sol

pragma solidity ^0.5.16;
pragma experimental ABIEncoderV2;

contract RewardsDistributorDelegatorStorage {
    /// @notice Administrator for this contract
    address public admin;

    /// @notice Pending administrator for this contract
    address public pendingAdmin;

    /// @notice Active brains of RewardsDistributor
    address public implementation;
}

contract RewardsDistributorDelegator is RewardsDistributorDelegatorStorage {
    /// @notice Emitted when implementation is changed
    event NewImplementation(address oldImplementation, address newImplementation);

	constructor(
			address admin_,
			address rewardToken_,
	        address implementation_) public {

        // Admin set to msg.sender for initialization
        admin = msg.sender;

        delegateTo(implementation_, abi.encodeWithSignature("initialize(address)", rewardToken_));

        _setImplementation(implementation_);

        admin = admin_;
	}


	/**
     * @notice Called by the admin to update the implementation of the delegator
     * @param implementation_ The address of the new implementation for delegation
     */
    function _setImplementation(address implementation_) public {
        require(msg.sender == admin, "RewardsDistributorDelegator::_setImplementation: admin only");
        require(implementation_ != address(0), "RewardsDistributorDelegator::_setImplementation: invalid implementation address");

        address oldImplementation = implementation;
        implementation = implementation_;

        emit NewImplementation(oldImplementation, implementation);
    }

    /**
     * @notice Internal method to delegate execution to another contract
     * @dev It returns to the external caller whatever the implementation returns or forwards reverts
     * @param callee The contract to delegatecall
     * @param data The raw data to delegatecall
     */
    function delegateTo(address callee, bytes memory data) internal {
        (bool success, bytes memory returnData) = callee.delegatecall(data);
        assembly {
            if eq(success, 0) {
                revert(add(returnData, 0x20), returndatasize)
            }
        }
    }

	/**
     * @dev Delegates execution to an implementation contract.
     * It returns to the external caller whatever the implementation returns
     * or forwards reverts.
     */
    function () external payable {
        // delegate all other functions to current implementation
        (bool success, ) = implementation.delegatecall(msg.data);

        assembly {
              let free_mem_ptr := mload(0x40)
              returndatacopy(free_mem_ptr, 0, returndatasize)

              switch success
              case 0 { revert(free_mem_ptr, returndatasize) }
              default { return(free_mem_ptr, returndatasize) }
        }
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"admin_","type":"address"},{"internalType":"address","name":"rewardToken_","type":"address"},{"internalType":"address","name":"implementation_","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldImplementation","type":"address"},{"indexed":false,"internalType":"address","name":"newImplementation","type":"address"}],"name":"NewImplementation","type":"event"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":false,"inputs":[{"internalType":"address","name":"implementation_","type":"address"}],"name":"_setImplementation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"pendingAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]

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000000000000000000000000b8f482539f2d3ae2c9ea6076894df36d1f632775000000000000000000000000c7283b66eb1eb5fb86327f08e1b5816b0720212b000000000000000000000000220f93183a69d1598e8405310cb361cff504146f

-----Decoded View---------------
Arg [0] : admin_ (address): 0xB8f482539F2d3Ae2C9ea6076894df36D1f632775
Arg [1] : rewardToken_ (address): 0xc7283b66Eb1EB5FB86327f08e1B5816b0720212B
Arg [2] : implementation_ (address): 0x220f93183a69d1598e8405310cB361CFF504146F

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000b8f482539f2d3ae2c9ea6076894df36d1f632775
Arg [1] : 000000000000000000000000c7283b66eb1eb5fb86327f08e1b5816b0720212b
Arg [2] : 000000000000000000000000220f93183a69d1598e8405310cb361cff504146f

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bzzr://09f3aa6ea9b0ed1b1e787ff055f351beb03e4f46e4504145d616cc24b748f6c7