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/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Adaptor between the abstract assembly and eth assembly.
*/
#pragma once
#include <libyul/AsmAnalysis.h>
#include <libyul/backends/evm/AbstractAssembly.h>
#include <liblangutil/SourceLocation.h>
#include <functional>
namespace yul
{
struct Block;
}
namespace dev
{
namespace eth
{
class Assembly;
class AssemblyItem;
}
namespace solidity
{
class EthAssemblyAdapter: public yul::AbstractAssembly
{
public:
explicit EthAssemblyAdapter(eth::Assembly& _assembly);
void setSourceLocation(langutil::SourceLocation const& _location) override;
int stackHeight() const override;
void appendInstruction(solidity::Instruction _instruction) override;
void appendConstant(u256 const& _constant) override;
void appendLabel(LabelID _labelId) override;
void appendLabelReference(LabelID _labelId) override;
size_t newLabelId() override;
size_t namedLabel(std::string const& _name) override;
void appendLinkerSymbol(std::string const& _linkerSymbol) override;
void appendJump(int _stackDiffAfter) override;
void appendJumpTo(LabelID _labelId, int _stackDiffAfter) override;
void appendJumpToIf(LabelID _labelId) override;
void appendBeginsub(LabelID, int) override;
void appendJumpsub(LabelID, int, int) override;
void appendReturnsub(int, int) override;
void appendAssemblySize() override;
std::pair<std::shared_ptr<AbstractAssembly>, SubID> createSubAssembly() override;
void appendDataOffset(SubID _sub) override;
void appendDataSize(SubID _sub) override;
SubID appendData(dev::bytes const& _data) override;
private:
static LabelID assemblyTagToIdentifier(eth::AssemblyItem const& _tag);
eth::Assembly& m_assembly;
std::map<SubID, dev::u256> m_dataHashBySubId;
size_t m_nextDataCounter = std::numeric_limits<size_t>::max() / 2;
};
class CodeGenerator
{
public:
/// Performs code generation and appends generated to _assembly.
static void assemble(
yul::Block const& _parsedData,
yul::AsmAnalysisInfo& _analysisInfo,
dev::eth::Assembly& _assembly,
yul::ExternalIdentifierAccess const& _identifierAccess = yul::ExternalIdentifierAccess(),
bool _useNamedLabelsForFunctions = false
);
};
}
}
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