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•  contract RewardDelegatorsProxy *
•    - function updateAdmin(address _newAdmi ...
•    - function updateLogic(address _newLogi ...
•    - function getAdmin()
•    - function()

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/**
 *Submitted for verification at Etherscan.io on 2021-01-03
*/

pragma solidity >=0.4.21 <0.7.0;


/// @title Contract to reward overlapping stakes
/// @author Marlin
/// @notice Use this contract only for testing
/// @dev Contract may or may not change in future (depending upon the new slots in proxy-store)
contract RewardDelegatorsProxy {
    bytes32 internal constant IMPLEMENTATION_SLOT = bytes32(
        uint256(keccak256("eip1967.proxy.implementation")) - 1
    );
    bytes32 internal constant PROXY_ADMIN_SLOT = bytes32(
        uint256(keccak256("eip1967.proxy.admin")) - 1
    );

    constructor(address contractLogic, address proxyAdmin) public {
        // save the code address
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            sstore(slot, contractLogic)
        }
        // save the proxy admin
        slot = PROXY_ADMIN_SLOT;
        address sender = proxyAdmin;
        assembly {
            sstore(slot, sender)
        }
    }

    function updateAdmin(address _newAdmin) public {
        require(
            msg.sender == getAdmin(),
            "Only the current admin should be able to new admin"
        );
        bytes32 slot = PROXY_ADMIN_SLOT;
        assembly {
            sstore(slot, _newAdmin)
        }
    }

    /// @author Marlin
    /// @dev Only admin can update the contract
    /// @param _newLogic address is the address of the contract that has to updated to
    function updateLogic(address _newLogic) public {
        require(
            msg.sender == getAdmin(),
            "Only Admin should be able to update the contracts"
        );
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            sstore(slot, _newLogic)
        }
    }

    /// @author Marlin
    /// @dev use assembly as contract store slot is manually decided
    function getAdmin() internal view returns (address result) {
        bytes32 slot = PROXY_ADMIN_SLOT;
        assembly {
            result := sload(slot)
        }
    }

    /// @author Marlin
    /// @dev add functionality to forward the balance as well.
    function() external payable {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            let contractLogic := sload(slot)
            calldatacopy(0x0, 0x0, calldatasize())
            let success := delegatecall(
                sub(gas(), 10000),
                contractLogic,
                0x0,
                calldatasize(),
                0,
                0
            )
            let retSz := returndatasize()
            returndatacopy(0, 0, retSz)

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

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[{"inputs":[{"internalType":"address","name":"contractLogic","type":"address"},{"internalType":"address","name":"proxyAdmin","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":false,"inputs":[{"internalType":"address","name":"_newAdmin","type":"address"}],"name":"updateAdmin","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_newLogic","type":"address"}],"name":"updateLogic","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000000e12e9aba385c36cad25858f2fdb8b5e3b3d8d16000000000000000000000000a1438d4081827c337d6a90f525789fffd44375e2

-----Decoded View---------------
Arg [0] : contractLogic (address): 0x0e12e9AbA385C36Cad25858f2FDb8b5E3B3D8D16
Arg [1] : proxyAdmin (address): 0xa1438d4081827c337d6A90f525789Fffd44375E2

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000000e12e9aba385c36cad25858f2fdb8b5e3b3d8d16
Arg [1] : 000000000000000000000000a1438d4081827c337d6a90f525789fffd44375e2

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bzzr://aeeb9f4ef1bc00ca8a49fc50c5337dcd477fdeeafa9d4e3905463007eb5c06a6