StateImporter.h

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/*
    This file is part of cpp-ethereum.

    cpp-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    cpp-ethereum is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once

#include <libdevcore/Common.h>
#include <libdevcore/Exceptions.h>
#include <libdevcore/FixedHash.h>

#include <memory>

namespace dev
{

class OverlayDB;

namespace eth
{

DEV_SIMPLE_EXCEPTION(InvalidAccountInTheDatabase);

class StateImporterFace
{
public:
    virtual ~StateImporterFace() = default;

    virtual void importAccount(h256 const& _addressHash, u256 const& _nonce, u256 const& _balance, std::map<h256, bytes> const& _storage, h256 const& _codeHash) = 0;

    virtual h256 importCode(bytesConstRef _code) = 0;

    virtual void commitStateDatabase() = 0;

    virtual bool isAccountImported(h256 const& _addressHash) const = 0;

    virtual h256 stateRoot() const = 0;

    virtual std::string lookupCode(h256 const& _hash) const = 0;
};
        
std::unique_ptr<StateImporterFace> createStateImporter(OverlayDB& _stateDb);

}
}