github.com/codingfuture/orig-energi3@v0.8.4/energi/contracts/src/IGovernedContract.sol (about)

     1  // Copyright 2019 The Energi Core Authors
     2  // This file is part of Energi Core.
     3  //
     4  // Energi Core is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // Energi Core is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU General Public License
    15  // along with Energi Core. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  // Energi Governance system is the fundamental part of Energi Core.
    18  
    19  // NOTE: It's not allowed to change the compiler due to byte-to-byte
    20  //       match requirement.
    21  pragma solidity 0.5.16;
    22  //pragma experimental SMTChecker;
    23  
    24  /**
    25   * Genesis version of GovernedContract interface.
    26   *
    27   * Base Consensus interface for upgradable contracts.
    28   * Unlike common approach, the implementation is NOT expected to be
    29   * called through delegatecall() to minimize risks of shared storage.
    30   *
    31   * NOTE: it MUST NOT change after blockchain launch!
    32   */
    33  interface IGovernedContract {
    34      // Return actual proxy address for secure validation
    35      function proxy() external returns(address);
    36  
    37      // It must check that the caller is the proxy
    38      // and copy all required data from the old address.
    39      function migrate(IGovernedContract _oldImpl) external;
    40  
    41      // It must check that the caller is the proxy
    42      // and self destruct to the new address.
    43      function destroy(IGovernedContract _newImpl) external;
    44  
    45      function () external payable;
    46  }
    47  
    48