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56 lines
1.6 KiB
56 lines
1.6 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <memory>
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#include <libdevcore/Exceptions.h>
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#include "ExtVMFace.h"
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namespace dev
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{
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namespace eth
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{
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struct VMException: virtual Exception {};
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struct StepsDone: virtual VMException {};
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struct BreakPointHit: virtual VMException {};
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struct BadInstruction: virtual VMException {};
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struct BadJumpDestination: virtual VMException {};
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struct OutOfGas: virtual VMException {};
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struct OutOfStack: virtual VMException {};
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struct StackUnderflow: virtual VMException {};
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/// EVM Virtual Machine interface
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class VMFace
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{
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public:
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explicit VMFace(u256 _gas): m_gas(_gas) {}
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virtual ~VMFace() = default;
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VMFace(VMFace const&) = delete;
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VMFace& operator=(VMFace const&) = delete;
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virtual void reset(u256 _gas = 0) noexcept { m_gas = _gas; }
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u256 gas() const noexcept { return m_gas; }
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virtual bytesConstRef go(ExtVMFace& _ext, OnOpFunc const& _onOp = {}, uint64_t _steps = (uint64_t)-1) = 0;
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protected:
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u256 m_gas = 0;
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};
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}
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}
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