vm.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 <fstream>
#include <cstdint>

#include <test/libtesteth/TestHelper.h>
#include <boost/test/unit_test.hpp>

#include <json_spirit/json_spirit.h>
#include <libdevcore/Log.h>
#include <libdevcore/CommonIO.h>
#include <libevmcore/Instruction.h>
#include <libevm/ExtVMFace.h>
#include <libevm/VM.h>
#include <libethereum/Transaction.h>
#include <libethereum/ExtVM.h>
#include <libethereum/State.h>

namespace dev { namespace test {

class FakeExtVM: public eth::ExtVMFace
{
public:
        FakeExtVM() = delete;
        FakeExtVM(eth::EnvInfo const& _envInfo, unsigned _depth = 0);

        virtual u256 store(u256 _n) override { return std::get<2>(addresses[myAddress])[_n]; }
        virtual void setStore(u256 _n, u256 _v) override { std::get<2>(addresses[myAddress])[_n] = _v; }
        virtual bool exists(Address _a) override { return !!addresses.count(_a); }
        virtual u256 balance(Address _a) override { return std::get<0>(addresses[_a]); }
        virtual void suicide(Address _a) override { std::get<0>(addresses[_a]) += std::get<0>(addresses[myAddress]); addresses.erase(myAddress); }
        virtual bytes const& codeAt(Address _a) override { return std::get<3>(addresses[_a]); }
        virtual size_t codeSizeAt(Address _a) override { return std::get<3>(addresses[_a]).size(); }
        virtual h160 create(u256 _endowment, u256& io_gas, bytesConstRef _init, eth::OnOpFunc const&) override;
        virtual boost::optional<eth::owning_bytes_ref> call(eth::CallParameters&) override;
        void setTransaction(Address _caller, u256 _value, u256 _gasPrice, bytes const& _data);
        void setContract(Address _myAddress, u256 _myBalance, u256 _myNonce, std::map<u256, u256> const& _storage, bytes const& _code);
        void set(Address _a, u256 _myBalance, u256 _myNonce, std::map<u256, u256> const& _storage, bytes const& _code);
        void reset(u256 _myBalance, u256 _myNonce, std::map<u256, u256> const& _storage);
        u256 doPosts();
        json_spirit::mObject exportEnv();
        static dev::eth::EnvInfo importEnv(json_spirit::mObject& _o);
        json_spirit::mObject exportState();
        void importState(json_spirit::mObject& _object);
        json_spirit::mObject exportExec();
        void importExec(json_spirit::mObject& _o);
        json_spirit::mArray exportCallCreates();
        void importCallCreates(json_spirit::mArray& _callcreates);

        eth::OnOpFunc simpleTrace() const;

        std::map<Address, std::tuple<u256, u256, std::map<u256, u256>, bytes>> addresses;
        eth::Transactions callcreates;
        bytes thisTxData;
        bytes thisTxCode;
        u256 gas;
        u256 execGas;
};


} } // Namespace Close