text: /*
  	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/Common.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 <libsolutil/AnsiColorized.h>
  
  #include <boost/test/unit_test.hpp>
  #include <boost/algorithm/string.hpp>
  
  #include <fstream>
  
  using namespace solidity;
  using namespace solidity::util;
  using namespace solidity::langutil;
  using namespace solidity::yul;
  using namespace solidity::yul::test;
  using namespace solidity::frontend;
  using namespace solidity::frontend::test;
  using namespace std;
  
  YulInterpreterTest::YulInterpreterTest(string const& _filename):
  	EVMVersionRestrictedTestCase(_filename)
  {
  	m_source = m_reader.source();
  	m_expectation = m_reader.simpleExpectations();
  }
  
  TestCase::TestResult YulInterpreterTest::run(ostream& _stream, string const& _linePrefix, bool const _formatted)
  {
  	if (!parse(_stream, _linePrefix, _formatted))
  		return TestResult::FatalError;
  
  	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 TestResult::Failure;
  	}
  	return TestResult::Success;
  }
  
  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(
  		solidity::test::CommonOptions::get().evmVersion(),
  		AssemblyStack::Language::StrictAssembly,
  		solidity::frontend::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;
  	Interpreter interpreter(state, EVMDialect::strictAssemblyForEVMObjects(langutil::EVMVersion{}));
  	try
  	{
  		interpreter(*m_ast);
  	}
  	catch (InterpreterTerminatedGeneric const&)
  	{
  	}
  
  	stringstream result;
  	state.dumpTraceAndState(result);
  	return result.str();
  }
  
  void YulInterpreterTest::printErrors(ostream& _stream, ErrorList const& _errors)
  {
  	SourceReferenceFormatter formatter(_stream);
  
  	for (auto const& error: _errors)
  		formatter.printErrorInformation(*error);
  }
  