mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Full assembly stack that can support EVM-assembly and Yul as input and EVM, EVM1.5 and
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* eWasm as output.
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*/
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#include <libsolidity/interface/AssemblyStack.h>
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#include <liblangutil/Scanner.h>
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#include <libyul/AsmPrinter.h>
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#include <libyul/AsmParser.h>
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#include <libyul/AsmAnalysis.h>
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#include <libyul/AsmAnalysisInfo.h>
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#include <libyul/AsmCodeGen.h>
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#include <libyul/backends/evm/EVMCodeTransform.h>
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#include <libyul/backends/evm/EVMAssembly.h>
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#include <libyul/ObjectParser.h>
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#include <libevmasm/Assembly.h>
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using namespace std;
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using namespace dev;
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using namespace langutil;
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using namespace dev::solidity;
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namespace
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{
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yul::AsmFlavour languageToAsmFlavour(AssemblyStack::Language _language)
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{
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switch (_language)
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{
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case AssemblyStack::Language::Assembly:
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return yul::AsmFlavour::Loose;
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case AssemblyStack::Language::StrictAssembly:
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return yul::AsmFlavour::Strict;
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case AssemblyStack::Language::Yul:
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return yul::AsmFlavour::Yul;
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}
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solAssert(false, "");
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return yul::AsmFlavour::Yul;
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}
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}
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Scanner const& AssemblyStack::scanner() const
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{
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solAssert(m_scanner, "");
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return *m_scanner;
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}
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bool AssemblyStack::parseAndAnalyze(std::string const& _sourceName, std::string const& _source)
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{
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m_errors.clear();
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m_analysisSuccessful = false;
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m_scanner = make_shared<Scanner>(CharStream(_source, _sourceName), _sourceName);
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m_parserResult = yul::ObjectParser(m_errorReporter, languageToAsmFlavour(m_language)).parse(m_scanner, false);
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if (!m_errorReporter.errors().empty())
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return false;
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solAssert(m_parserResult, "");
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solAssert(m_parserResult->code, "");
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return analyzeParsed();
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}
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bool AssemblyStack::analyzeParsed()
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{
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solAssert(m_parserResult, "");
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solAssert(m_parserResult->code, "");
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m_parserResult->analysisInfo = make_shared<yul::AsmAnalysisInfo>();
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yul::AsmAnalyzer analyzer(*m_parserResult->analysisInfo, m_errorReporter, m_evmVersion, boost::none, languageToAsmFlavour(m_language));
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m_analysisSuccessful = analyzer.analyze(*m_parserResult->code);
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return m_analysisSuccessful;
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}
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MachineAssemblyObject AssemblyStack::assemble(Machine _machine) const
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{
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solAssert(m_analysisSuccessful, "");
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solAssert(m_parserResult, "");
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solAssert(m_parserResult->code, "");
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solAssert(m_parserResult->analysisInfo, "");
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switch (_machine)
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{
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case Machine::EVM:
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{
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MachineAssemblyObject object;
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eth::Assembly assembly;
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yul::CodeGenerator::assemble(*m_parserResult->code, *m_parserResult->analysisInfo, assembly);
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object.bytecode = make_shared<eth::LinkerObject>(assembly.assemble());
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object.assembly = assembly.assemblyString();
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return object;
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}
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case Machine::EVM15:
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{
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MachineAssemblyObject object;
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yul::EVMAssembly assembly(true);
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yul::CodeTransform(assembly, *m_parserResult->analysisInfo, m_language == Language::Yul, true)(*m_parserResult->code);
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object.bytecode = make_shared<eth::LinkerObject>(assembly.finalize());
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/// TODO: fill out text representation
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return object;
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}
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case Machine::eWasm:
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solUnimplemented("eWasm backend is not yet implemented.");
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}
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// unreachable
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return MachineAssemblyObject();
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}
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string AssemblyStack::print() const
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{
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solAssert(m_parserResult, "");
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solAssert(m_parserResult->code, "");
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return m_parserResult->toString(m_language == Language::Yul) + "\n";
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}
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