mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*
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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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/** @file CodeLocation.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "CodeLocation.h"
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#include "CodeFragment.h"
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using namespace std;
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using namespace eth;
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CodeLocation::CodeLocation(CodeFragment* _f)
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{
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m_f = _f;
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m_pos = _f->m_code.size();
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}
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unsigned CodeLocation::get() const
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{
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assert(m_f->m_code[m_pos - 1] == (byte)Instruction::PUSH4);
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bytesConstRef r(&m_f->m_code[m_pos], 4);
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return fromBigEndian<uint32_t>(r);
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}
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void CodeLocation::set(unsigned _val)
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{
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assert(m_f->m_code[m_pos - 1] == (byte)Instruction::PUSH4);
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assert(!get());
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bytesRef r(&m_f->m_code[m_pos], 4);
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toBigEndian(_val, r);
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}
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void CodeLocation::anchor()
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{
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set(m_f->m_code.size());
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}
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void CodeLocation::increase(unsigned _val)
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{
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assert(m_f->m_code[m_pos - 1] == (byte)Instruction::PUSH4);
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bytesRef r(&m_f->m_code[m_pos], 4);
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toBigEndian(get() + _val, r);
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}
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