Add tests.

1 files changed, 134 insertions, 0 deletions

diff --git a/test/libyul/ObjectCompilerTest.cpp b/test/libyul/ObjectCompilerTest.cpp
new file mode 100644
index 00000000..e60f718d
--- /dev/null
+++ b/test/libyul/ObjectCompilerTest.cpp
@@ -0,0 +1,134 @@
+/*
+	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/ObjectCompilerTest.h>
+
+#include <test/libsolidity/FormattedScope.h>
+
+#include <libsolidity/interface/AssemblyStack.h>
+
+#include <libevmasm/Instruction.h>
+
+#include <liblangutil/SourceReferenceFormatter.h>
+
+#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;
+
+ObjectCompilerTest::ObjectCompilerTest(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;
+		if (m_source.empty() && boost::algorithm::starts_with(line, "// optimize"))
+			m_optimize = true;
+		m_source += line + "\n";
+	}
+	while (getline(file, line))
+		if (boost::algorithm::starts_with(line, "//"))
+			m_expectation += line.substr((line.size() >= 3 && line[2] == ' ') ? 3 : 2) + "\n";
+		else
+			m_expectation += line + "\n";
+}
+
+bool ObjectCompilerTest::run(ostream& _stream, string const& _linePrefix, bool const _formatted)
+{
+	AssemblyStack stack(EVMVersion(), AssemblyStack::Language::StrictAssembly);
+	if (!stack.parseAndAnalyze("source", m_source))
+	{
+		FormattedScope(_stream, _formatted, {formatting::BOLD, formatting::RED}) << _linePrefix << "Error parsing source." << endl;
+		printErrors(_stream, stack.errors());
+		return false;
+	}
+	if (m_optimize)
+		stack.optimize();
+
+	MachineAssemblyObject obj = stack.assemble(AssemblyStack::Machine::EVM);
+	solAssert(obj.bytecode, "");
+
+	m_obtainedResult = "Assembly:\n" + obj.assembly;
+	if (obj.bytecode->bytecode.empty())
+		m_obtainedResult += "-- empty bytecode --\n";
+	else
+		m_obtainedResult +=
+			"Bytecode: " +
+			toHex(obj.bytecode->bytecode) +
+			"\nOpcodes: " +
+			boost::trim_copy(solidity::disassemble(obj.bytecode->bytecode)) +
+			"\n";
+
+	if (m_expectation != m_obtainedResult)
+	{
+		string nextIndentLevel = _linePrefix + "  ";
+		FormattedScope(_stream, _formatted, {formatting::BOLD, formatting::CYAN}) << _linePrefix << "Expected result:" << endl;
+		printIndented(_stream, m_expectation, nextIndentLevel);
+		FormattedScope(_stream, _formatted, {formatting::BOLD, formatting::CYAN}) << _linePrefix << "Obtained result:" << endl;
+		printIndented(_stream, m_obtainedResult, nextIndentLevel);
+		return false;
+	}
+	return true;
+}
+
+void ObjectCompilerTest::printSource(ostream& _stream, string const& _linePrefix, bool const) const
+{
+	printIndented(_stream, m_source, _linePrefix);
+}
+
+void ObjectCompilerTest::printUpdatedExpectations(ostream& _stream, string const& _linePrefix) const
+{
+	printIndented(_stream, m_obtainedResult, _linePrefix);
+}
+
+void ObjectCompilerTest::printIndented(ostream& _stream, string const& _output, string const& _linePrefix) const
+{
+	stringstream output(_output);
+	string line;
+	while (getline(output, line))
+		if (line.empty())
+			// Avoid trailing spaces.
+			_stream << boost::trim_right_copy(_linePrefix) << endl;
+		else
+			_stream << _linePrefix << line << endl;
+}
+
+void ObjectCompilerTest::printErrors(ostream& _stream, ErrorList const& _errors)
+{
+	SourceReferenceFormatter formatter(_stream);
+
+	for (auto const& error: _errors)
+		formatter.printExceptionInformation(
+			*error,
+			(error->type() == Error::Type::Warning) ? "Warning" : "Error"
+		);
+}