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•  contract Proxied
•  contract Proxy is Proxied
•    - function()
•  contract DutchExchangeProxy is Pro ... *

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/**
 *Submitted for verification at Etherscan.io on 2019-02-07
*/

pragma solidity ^0.5.2;

// File: @gnosis.pm/util-contracts/contracts/Proxy.sol

/// @title Proxied - indicates that a contract will be proxied. Also defines storage requirements for Proxy.
/// @author Alan Lu - <[email protected]>
contract Proxied {
    address public masterCopy;
}

/// @title Proxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
contract Proxy is Proxied {
    /// @dev Constructor function sets address of master copy contract.
    /// @param _masterCopy Master copy address.
    constructor(address _masterCopy) public {
        require(_masterCopy != address(0), "The master copy is required");
        masterCopy = _masterCopy;
    }

    /// @dev Fallback function forwards all transactions and returns all received return data.
    function() external payable {
        address _masterCopy = masterCopy;
        assembly {
            calldatacopy(0, 0, calldatasize)
            let success := delegatecall(not(0), _masterCopy, 0, calldatasize, 0, 0)
            returndatacopy(0, 0, returndatasize)
            switch success
                case 0 {
                    revert(0, returndatasize)
                }
                default {
                    return(0, returndatasize)
                }
        }
    }
}

// File: contracts/DutchExchangeProxy.sol

contract DutchExchangeProxy is Proxy {
    constructor(address _masterCopy) public Proxy(_masterCopy) {}
}

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[{"constant":true,"inputs":[],"name":"masterCopy","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_masterCopy","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"}]

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bzzr://53d5d737ce41635f1bbd312c4fb211defcea73dc82e7fc270351a609f198b845