added source code printing for each output line.

some changes after pr review

libevmcore/Assembly.cpp

@@ -21,6 +21,8 @@
 
 #include "Assembly.h"
 
+#include <fstream>
+
 #include <libdevcore/Log.h>
 
 using namespace std;
@@ -171,49 +173,74 @@ ostream& dev::eth::operator<<(ostream& _out, AssemblyItemsConstRef _i)
 	return _out;
 }
 
-ostream& Assembly::streamRLP(ostream& _out, string const& _prefix, StringMap _sourceCodes) const
+string Assembly::getLocationFromSources(StringMap const& _sourceCodes, SourceLocation const& _location) const
+{
+	if (_location.isEmpty() || _sourceCodes.empty() || _location.start >= _location.end || _location.start < 0)
+		return "";
+
+	auto it = _sourceCodes.find(*_location.sourceName);
+	if (it == _sourceCodes.end())
+		return "";
+
+	string toReturn = it->second;
+	if (_location.start >= (int)toReturn.size())
+		return "";
+
+	toReturn = toReturn.substr(_location.start, _location.end - _location.start);
+	auto newLinePos = toReturn.find_first_of("\n");
+	if (newLinePos != string::npos && newLinePos != toReturn.size() - 1)
+		toReturn = toReturn.substr(0, newLinePos) + "...";
+
+	return move(toReturn);
+}
+
+ostream& Assembly::streamRLP(ostream& _out, string const& _prefix, StringMap const& _sourceCodes) const
 {
-	(void)_sourceCodes;
 	_out << _prefix << ".code:" << endl;
 	for (AssemblyItem const& i: m_items)
+	{
+		string sourceLine = getLocationFromSources(_sourceCodes, i.getLocation());
+		_out << _prefix;
 		switch (i.m_type)
 		{
 		case Operation:
-			_out << _prefix << "  " << instructionInfo((Instruction)(byte)i.m_data).name << endl;
+			_out << "  " << instructionInfo((Instruction)(byte)i.m_data).name;
 			break;
 		case Push:
-			_out << _prefix << "  PUSH " << i.m_data << endl;
+			_out << "  PUSH " << i.m_data;
 			break;
 		case PushString:
-			_out << _prefix << "  PUSH \"" << m_strings.at((h256)i.m_data) << "\"" << endl;
+			_out << "  PUSH \"" << m_strings.at((h256)i.m_data) << "\"";
 			break;
 		case PushTag:
-			_out << _prefix << "  PUSH [tag" << i.m_data << "]" << endl;
+			_out << "  PUSH [tag" << i.m_data << "]";
 			break;
 		case PushSub:
-			_out << _prefix << "  PUSH [$" << h256(i.m_data).abridged() << "]" << endl;
+			_out << "  PUSH [$" << h256(i.m_data).abridged() << "]";
 			break;
 		case PushSubSize:
-			_out << _prefix << "  PUSH #[$" << h256(i.m_data).abridged() << "]" << endl;
+			_out << "  PUSH #[$" << h256(i.m_data).abridged() << "]";
 			break;
 		case PushProgramSize:
-			_out << _prefix << "  PUSHSIZE" << endl;
+			_out << "  PUSHSIZE";
 			break;
 		case Tag:
-			_out << _prefix << "tag" << i.m_data << ": " << endl << _prefix << "  JUMPDEST" << endl;
+			_out << "tag" << i.m_data << ": " << endl << _prefix << "  JUMPDEST";
 			break;
 		case PushData:
-			_out << _prefix << "  PUSH [" << hex << (unsigned)i.m_data << "]" << endl;
+			_out << "  PUSH [" << hex << (unsigned)i.m_data << "]";
 			break;
 		case NoOptimizeBegin:
-			_out << _prefix << "DoNotOptimze{{" << endl;
+			_out << "DoNotOptimze{{";
 			break;
 		case NoOptimizeEnd:
-			_out << _prefix << "DoNotOptimze}}" << endl;
+			_out << "DoNotOptimze}}";
 			break;
 		default:
 			BOOST_THROW_EXCEPTION(InvalidOpcode());
 		}
+		_out << string(20, ' ') << sourceLine << endl;
+	}
 
 	if (!m_data.empty() || !m_subs.empty())
 	{

libevmcore/Assembly.h

@@ -121,9 +121,10 @@ public:
 
 	bytes assemble() const;
 	Assembly& optimise(bool _enable);
-	std::ostream& streamRLP(std::ostream& _out, std::string const& _prefix = "", StringMap _sourceCodes = StringMap()) const;
+	std::ostream& streamRLP(std::ostream& _out, std::string const& _prefix = "", const StringMap &_sourceCodes = StringMap()) const;
 
-private:
+protected:
+	std::string getLocationFromSources(const StringMap &_sourceCodes, const SourceLocation &_location) const;
 	void donePath() { if (m_totalDeposit != INT_MAX && m_totalDeposit != m_deposit) BOOST_THROW_EXCEPTION(InvalidDeposit()); }
 	unsigned bytesRequired() const;
 

solc/CommandLineInterface.cpp

@@ -424,13 +424,13 @@ void CommandLineInterface::actOnInput()
 			if (outputToStdout(choice))
 			{
 				cout << "EVM assembly:" << endl;
-				m_compiler->streamAssembly(cout, contract);
+				m_compiler->streamAssembly(cout, contract, m_sourceCodes);
 			}
 
 			if (outputToFile(choice))
 			{
 				ofstream outFile(contract + ".evm");
-				m_compiler->streamAssembly(outFile, contract);
+				m_compiler->streamAssembly(outFile, contract, m_sourceCodes);
 				outFile.close();
 			}
 		}