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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/>.
*/
/**
* Full assembly stack that can support EVM-assembly and Yul as input and EVM, EVM1.5 and
* eWasm as output.
*/
#pragma once
#include <liblangutil/ErrorReporter.h>
#include <liblangutil/EVMVersion.h>
#include <libyul/Object.h>
#include <libyul/ObjectParser.h>
#include <libevmasm/LinkerObject.h>
#include <memory>
#include <string>
namespace langutil
{
class Scanner;
}
namespace yul
{
class AbstractAssembly;
}
namespace dev
{
namespace solidity
{
struct MachineAssemblyObject
{
std::shared_ptr<eth::LinkerObject> bytecode;
std::string assembly;
};
/*
* Full assembly stack that can support EVM-assembly and Yul as input and EVM, EVM1.5 and
* eWasm as output.
*/
class AssemblyStack
{
public:
enum class Language { Yul, Assembly, StrictAssembly };
enum class Machine { EVM, EVM15, eWasm };
explicit AssemblyStack(EVMVersion _evmVersion = EVMVersion(), Language _language = Language::Assembly):
m_language(_language), m_evmVersion(_evmVersion), m_errorReporter(m_errors)
{}
/// @returns the scanner used during parsing
langutil::Scanner const& scanner() const;
/// Runs parsing and analysis steps, returns false if input cannot be assembled.
/// Multiple calls overwrite the previous state.
bool parseAndAnalyze(std::string const& _sourceName, std::string const& _source);
/// Run the optimizer suite. Can only be used with Yul or strict assembly.
void optimize();
/// Run the assembly step (should only be called after parseAndAnalyze).
/// @param _optimize does not run the optimizer but performs optimized code generation.
MachineAssemblyObject assemble(Machine _machine, bool _optimize = false) const;
/// @returns the errors generated during parsing, analysis (and potentially assembly).
langutil::ErrorList const& errors() const { return m_errors; }
/// Pretty-print the input after having parsed it.
std::string print() const;
private:
bool analyzeParsed();
bool analyzeParsed(yul::Object& _object);
void compileEVM(yul::AbstractAssembly& _assembly, bool _evm15, bool _optimize) const;
void optimize(yul::Object& _object);
Language m_language = Language::Assembly;
EVMVersion m_evmVersion;
std::shared_ptr<langutil::Scanner> m_scanner;
bool m_analysisSuccessful = false;
std::shared_ptr<yul::Object> m_parserResult;
langutil::ErrorList m_errors;
langutil::ErrorReporter m_errorReporter;
};
}
}
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