solidity/test/libyul/YulInterpreterTest.cpp
2019-04-04 13:02:55 +02:00

167 lines
4.8 KiB
C++

/*
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/>.
*/
#include <test/libyul/YulInterpreterTest.h>
#include <test/tools/yulInterpreter/Interpreter.h>
#include <test/Options.h>
#include <libyul/backends/evm/EVMDialect.h>
#include <libyul/AsmParser.h>
#include <libyul/AssemblyStack.h>
#include <libyul/AsmAnalysisInfo.h>
#include <liblangutil/ErrorReporter.h>
#include <liblangutil/SourceReferenceFormatter.h>
#include <libdevcore/AnsiColorized.h>
#include <boost/test/unit_test.hpp>
#include <boost/algorithm/string.hpp>
#include <fstream>
using namespace dev;
using namespace langutil;
using namespace yul;
using namespace yul::test;
using namespace dev::solidity;
using namespace dev::solidity::test;
using namespace std;
YulInterpreterTest::YulInterpreterTest(string const& _filename)
{
boost::filesystem::path path(_filename);
ifstream file(_filename);
if (!file)
BOOST_THROW_EXCEPTION(runtime_error("Cannot open test case: \"" + _filename + "\"."));
file.exceptions(ios::badbit);
string line;
while (getline(file, line))
{
if (boost::algorithm::starts_with(line, "// ----"))
break;
m_source += std::move(line) + "\n";
}
while (getline(file, line))
if (boost::algorithm::starts_with(line, "// "))
m_expectation += line.substr(3) + "\n";
else
m_expectation += line + "\n";
}
bool YulInterpreterTest::run(ostream& _stream, string const& _linePrefix, bool const _formatted)
{
if (!parse(_stream, _linePrefix, _formatted))
return false;
m_obtainedResult = interpret();
if (m_expectation != m_obtainedResult)
{
string nextIndentLevel = _linePrefix + " ";
AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::CYAN}) << _linePrefix << "Expected result:" << endl;
// TODO could compute a simple diff with highlighted lines
printIndented(_stream, m_expectation, nextIndentLevel);
AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::CYAN}) << _linePrefix << "Obtained result:" << endl;
printIndented(_stream, m_obtainedResult, nextIndentLevel);
return false;
}
return true;
}
void YulInterpreterTest::printSource(ostream& _stream, string const& _linePrefix, bool const) const
{
printIndented(_stream, m_source, _linePrefix);
}
void YulInterpreterTest::printUpdatedExpectations(ostream& _stream, string const& _linePrefix) const
{
printIndented(_stream, m_obtainedResult, _linePrefix);
}
void YulInterpreterTest::printIndented(ostream& _stream, string const& _output, string const& _linePrefix) const
{
stringstream output(_output);
string line;
while (getline(output, line))
_stream << _linePrefix << line << endl;
}
bool YulInterpreterTest::parse(ostream& _stream, string const& _linePrefix, bool const _formatted)
{
AssemblyStack stack(
dev::test::Options::get().evmVersion(),
AssemblyStack::Language::StrictAssembly,
dev::solidity::OptimiserSettings::none()
);
if (stack.parseAndAnalyze("", m_source))
{
m_ast = stack.parserResult()->code;
m_analysisInfo = stack.parserResult()->analysisInfo;
return true;
}
else
{
AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::RED}) << _linePrefix << "Error parsing source." << endl;
printErrors(_stream, stack.errors());
return false;
}
}
string YulInterpreterTest::interpret()
{
InterpreterState state;
state.maxTraceSize = 10000;
state.maxSteps = 10000;
state.maxMemSize = 0x20000000;
Interpreter interpreter(state);
try
{
interpreter(*m_ast);
}
catch (InterpreterTerminatedGeneric const&)
{
}
stringstream result;
result << "Trace:" << endl;;
for (auto const& line: interpreter.trace())
result << " " << line << endl;
result << "Memory dump:\n";
for (size_t i = 0; i < state.memory.size(); i += 0x20)
result << " " << std::hex << std::setw(4) << i << ": " << toHex(bytesConstRef(state.memory.data() + i, 0x20).toBytes()) << endl;
result << "Storage dump:" << endl;
for (auto const& slot: state.storage)
result << " " << slot.first.hex() << ": " << slot.second.hex() << endl;
return result.str();
}
void YulInterpreterTest::printErrors(ostream& _stream, ErrorList const& _errors)
{
SourceReferenceFormatter formatter(_stream);
for (auto const& error: _errors)
formatter.printExceptionInformation(
*error,
(error->type() == Error::Type::Warning) ? "Warning" : "Error"
);
}