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/*
This file is part of cpp-ethereum.
cpp-ethereum 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.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Lefteris <lefteris@ethdev.com>
* @author Gav Wood <g@ethdev.com>
* @date 2014
* Solidity command line interface.
*/
#include "CommandLineInterface.h"
#include <string>
#include <iostream>
#include <fstream>
#include <boost/filesystem.hpp>
#include <boost/algorithm/string.hpp>
#include "BuildInfo.h"
#include <libdevcore/Common.h>
#include <libdevcore/CommonData.h>
#include <libdevcore/CommonIO.h>
#include <libevmcore/Instruction.h>
#include <libevmcore/Params.h>
#include <libsolidity/Scanner.h>
#include <libsolidity/Parser.h>
#include <libsolidity/ASTPrinter.h>
#include <libsolidity/ASTJsonConverter.h>
#include <libsolidity/NameAndTypeResolver.h>
#include <libsolidity/Exceptions.h>
#include <libsolidity/CompilerStack.h>
#include <libsolidity/SourceReferenceFormatter.h>
#include <libsolidity/GasEstimator.h>
using namespace std;
namespace po = boost::program_options;
namespace dev
{
namespace solidity
{
static string const g_argAbiStr = "json-abi";
static string const g_argSolAbiStr = "sol-abi";
static string const g_argSignatureHashes = "hashes";
static string const g_argGas = "gas";
static string const g_argAsmStr = "asm";
static string const g_argAsmJsonStr = "asm-json";
static string const g_argAstStr = "ast";
static string const g_argAstJson = "ast-json";
static string const g_argBinaryStr = "binary";
static string const g_argOpcodesStr = "opcodes";
static string const g_argNatspecDevStr = "natspec-dev";
static string const g_argNatspecUserStr = "natspec-user";
static string const g_argAddStandard = "add-std";
/// Possible arguments to for --combined-json
static set<string> const g_combinedJsonArgs{
"binary",
"opcodes",
"json-abi",
"sol-abi",
"asm",
"ast",
"natspec-user",
"natspec-dev"
};
static void version()
{
cout << "solc, the solidity compiler commandline interface " << dev::Version << endl
<< " by Christian <c@ethdev.com> and Lefteris <lefteris@ethdev.com>, (c) 2014." << endl
<< "Build: " << DEV_QUOTED(ETH_BUILD_PLATFORM) << "/" << DEV_QUOTED(ETH_BUILD_TYPE) << endl;
exit(0);
}
static inline bool humanTargetedStdout(po::variables_map const& _args, string const& _name)
{
return _args.count(_name) && _args[_name].as<OutputType>() != OutputType::FILE;
}
static bool needsHumanTargetedStdout(po::variables_map const& _args)
{
return
_args.count(g_argGas) ||
humanTargetedStdout(_args, g_argAbiStr) ||
humanTargetedStdout(_args, g_argSolAbiStr) ||
humanTargetedStdout(_args, g_argSignatureHashes) ||
humanTargetedStdout(_args, g_argNatspecUserStr) ||
humanTargetedStdout(_args, g_argAstJson) ||
humanTargetedStdout(_args, g_argNatspecDevStr) ||
humanTargetedStdout(_args, g_argAsmStr) ||
humanTargetedStdout(_args, g_argAsmJsonStr) ||
humanTargetedStdout(_args, g_argOpcodesStr) ||
humanTargetedStdout(_args, g_argBinaryStr);
}
static inline bool outputToFile(OutputType type)
{
return type == OutputType::FILE || type == OutputType::BOTH;
}
static inline bool outputToStdout(OutputType type)
{
return type == OutputType::STDOUT || type == OutputType::BOTH;
}
static std::istream& operator>>(std::istream& _in, OutputType& io_output)
{
std::string token;
_in >> token;
if (token == "stdout")
io_output = OutputType::STDOUT;
else if (token == "file")
io_output = OutputType::FILE;
else if (token == "both")
io_output = OutputType::BOTH;
else
throw boost::program_options::invalid_option_value(token);
return _in;
}
void CommandLineInterface::handleBinary(string const& _contract)
{
auto choice = m_args[g_argBinaryStr].as<OutputType>();
if (outputToStdout(choice))
{
cout << "Binary: " << endl;
cout << toHex(m_compiler->getBytecode(_contract)) << endl;
}
if (outputToFile(choice))
{
ofstream outFile(_contract + ".binary");
outFile << toHex(m_compiler->getBytecode(_contract));
outFile.close();
}
}
void CommandLineInterface::handleOpcode(string const& _contract)
{
auto choice = m_args[g_argOpcodesStr].as<OutputType>();
if (outputToStdout(choice))
{
cout << "Opcodes: " << endl;
cout << eth::disassemble(m_compiler->getBytecode(_contract));
cout << endl;
}
if (outputToFile(choice))
{
ofstream outFile(_contract + ".opcode");
outFile << eth::disassemble(m_compiler->getBytecode(_contract));
outFile.close();
}
}
void CommandLineInterface::handleBytecode(string const& _contract)
{
if (m_args.count(g_argOpcodesStr))
handleOpcode(_contract);
if (m_args.count(g_argBinaryStr))
handleBinary(_contract);
}
void CommandLineInterface::handleSignatureHashes(string const& _contract)
{
if (!m_args.count(g_argSignatureHashes))
return;
string out;
for (auto const& it: m_compiler->getContractDefinition(_contract).getInterfaceFunctions())
out += toHex(it.first.ref()) + ": " + it.second->externalSignature() + "\n";
auto choice = m_args[g_argSignatureHashes].as<OutputType>();
if (outputToStdout(choice))
cout << "Function signatures: " << endl << out;
if (outputToFile(choice))
{
ofstream outFile(_contract + ".signatures");
outFile << out;
outFile.close();
}
}
void CommandLineInterface::handleMeta(DocumentationType _type, string const& _contract)
{
std::string argName;
std::string suffix;
std::string title;
switch(_type)
{
case DocumentationType::ABIInterface:
argName = g_argAbiStr;
suffix = ".abi";
title = "Contract JSON ABI";
break;
case DocumentationType::ABISolidityInterface:
argName = g_argSolAbiStr;
suffix = ".sol";
title = "Contract Solidity ABI";
break;
case DocumentationType::NatspecUser:
argName = g_argNatspecUserStr;
suffix = ".docuser";
title = "User Documentation";
break;
case DocumentationType::NatspecDev:
argName = g_argNatspecDevStr;
suffix = ".docdev";
title = "Developer Documentation";
break;
default:
// should never happen
BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Unknown documentation _type"));
}
if (m_args.count(argName))
{
auto choice = m_args[argName].as<OutputType>();
if (outputToStdout(choice))
{
cout << title << endl;
cout << m_compiler->getMetadata(_contract, _type) << endl;
}
if (outputToFile(choice))
{
ofstream outFile(_contract + suffix);
outFile << m_compiler->getMetadata(_contract, _type);
outFile.close();
}
}
}
void CommandLineInterface::handleGasEstimation(string const& _contract)
{
using Gas = GasEstimator::GasConsumption;
if (!m_compiler->getAssemblyItems(_contract) && !m_compiler->getRuntimeAssemblyItems(_contract))
return;
cout << "Gas estimation:" << endl;
if (eth::AssemblyItems const* items = m_compiler->getAssemblyItems(_contract))
{
Gas gas = GasEstimator::functionalEstimation(*items);
u256 bytecodeSize(m_compiler->getRuntimeBytecode(_contract).size());
cout << "construction:" << endl;
cout << " " << gas << " + " << (bytecodeSize * eth::c_createDataGas) << " = ";
gas += bytecodeSize * eth::c_createDataGas;
cout << gas << endl;
}
if (eth::AssemblyItems const* items = m_compiler->getRuntimeAssemblyItems(_contract))
{
ContractDefinition const& contract = m_compiler->getContractDefinition(_contract);
cout << "external:" << endl;
for (auto it: contract.getInterfaceFunctions())
{
string sig = it.second->externalSignature();
GasEstimator::GasConsumption gas = GasEstimator::functionalEstimation(*items, sig);
cout << " " << sig << ":\t" << gas << endl;
}
cout << "internal:" << endl;
for (auto const& it: contract.getDefinedFunctions())
{
if (it->isPartOfExternalInterface() || it->isConstructor())
continue;
size_t entry = m_compiler->getFunctionEntryPoint(_contract, *it);
GasEstimator::GasConsumption gas = GasEstimator::GasConsumption::infinite();
if (entry > 0)
gas = GasEstimator::functionalEstimation(*items, entry, *it);
FunctionType type(*it);
cout << " " << it->getName() << "(";
auto end = type.getParameterTypes().end();
for (auto it = type.getParameterTypes().begin(); it != end; ++it)
cout << (*it)->toString() << (it + 1 == end ? "" : ",");
cout << "):\t" << gas << endl;
}
}
}
bool CommandLineInterface::parseArguments(int argc, char** argv)
{
// Declare the supported options.
po::options_description desc("Allowed options");
desc.add_options()
("help", "Show help message and exit")
("version", "Show version and exit")
("optimize", po::value<bool>()->default_value(false), "Optimize bytecode")
("optimize-runs", po::value<unsigned>()->default_value(200), "Estimated number of contract runs for optimizer.")
("add-std", po::value<bool>()->default_value(false), "Add standard contracts")
("input-file", po::value<vector<string>>(), "input file")
(
"combined-json",
po::value<string>()->value_name(boost::join(g_combinedJsonArgs, ",")),
"Output a single json document containing the specified information, can be combined."
)
(g_argAstStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the AST of the contract.")
(g_argAstJson.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the AST of the contract in JSON format.")
(g_argAsmStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the EVM assembly of the contract.")
(g_argAsmJsonStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the EVM assembly of the contract in JSON format.")
(g_argOpcodesStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the Opcodes of the contract.")
(g_argBinaryStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the contract in binary (hexadecimal).")
(g_argAbiStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the contract's JSON ABI interface.")
(g_argSolAbiStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the contract's Solidity ABI interface.")
(g_argSignatureHashes.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the contract's functions' signature hashes.")
(g_argGas.c_str(),
"Request to output an estimate for each function's maximal gas usage.")
(g_argNatspecUserStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the contract's Natspec user documentation.")
(g_argNatspecDevStr.c_str(), po::value<OutputType>()->value_name("stdout|file|both"),
"Request to output the contract's Natspec developer documentation.");
// All positional options should be interpreted as input files
po::positional_options_description p;
p.add("input-file", -1);
// parse the compiler arguments
try
{
po::store(po::command_line_parser(argc, argv).options(desc).positional(p).allow_unregistered().run(), m_args);
}
catch (po::error const& _exception)
{
cerr << _exception.what() << endl;
return false;
}
if (m_args.count("combined-json"))
{
vector<string> requests;
for (string const& item: boost::split(requests, m_args["combined-json"].as<string>(), boost::is_any_of(",")))
if (!g_combinedJsonArgs.count(item))
{
cerr << "Invalid option to --combined-json: " << item << endl;
return false;
}
}
po::notify(m_args);
if (m_args.count("help"))
{
cout << desc;
return false;
}
if (m_args.count("version"))
{
version();
return false;
}
return true;
}
bool CommandLineInterface::processInput()
{
if (!m_args.count("input-file"))
{
string s;
while (!cin.eof())
{
getline(cin, s);
m_sourceCodes["<stdin>"].append(s + '\n');
}
}
else
for (string const& infile: m_args["input-file"].as<vector<string>>())
{
auto path = boost::filesystem::path(infile);
if (!boost::filesystem::exists(path))
{
cerr << "Skipping non existant input file \"" << infile << "\"" << endl;
continue;
}
if (!boost::filesystem::is_regular_file(path))
{
cerr << "\"" << infile << "\" is not a valid file. Skipping" << endl;
continue;
}
m_sourceCodes[infile] = asString(dev::contents(infile));
}
m_compiler.reset(new CompilerStack(m_args["add-std"].as<bool>()));
try
{
for (auto const& sourceCode: m_sourceCodes)
m_compiler->addSource(sourceCode.first, sourceCode.second);
// TODO: Perhaps we should not compile unless requested
bool optimize = m_args["optimize"].as<bool>();
unsigned runs = m_args["optimize-runs"].as<unsigned>();
m_compiler->compile(optimize, runs);
}
catch (ParserError const& _exception)
{
SourceReferenceFormatter::printExceptionInformation(cerr, _exception, "Parser error", *m_compiler);
return false;
}
catch (DeclarationError const& _exception)
{
SourceReferenceFormatter::printExceptionInformation(cerr, _exception, "Declaration error", *m_compiler);
return false;
}
catch (TypeError const& _exception)
{
SourceReferenceFormatter::printExceptionInformation(cerr, _exception, "Type error", *m_compiler);
return false;
}
catch (CompilerError const& _exception)
{
SourceReferenceFormatter::printExceptionInformation(cerr, _exception, "Compiler error", *m_compiler);
return false;
}
catch (InternalCompilerError const& _exception)
{
cerr << "Internal compiler error during compilation:" << endl
<< boost::diagnostic_information(_exception);
return false;
}
catch (Exception const& _exception)
{
cerr << "Exception during compilation: " << boost::diagnostic_information(_exception) << endl;
return false;
}
catch (...)
{
cerr << "Unknown exception during compilation." << endl;
return false;
}
return true;
}
void CommandLineInterface::handleCombinedJSON()
{
if (!m_args.count("combined-json"))
return;
Json::Value output(Json::objectValue);
set<string> requests;
boost::split(requests, m_args["combined-json"].as<string>(), boost::is_any_of(","));
vector<string> contracts = m_compiler->getContractNames();
if (!contracts.empty())
output["contracts"] = Json::Value(Json::objectValue);
for (string const& contractName: contracts)
{
Json::Value contractData(Json::objectValue);
if (requests.count("sol-abi"))
contractData["sol-abi"] = m_compiler->getSolidityInterface(contractName);
if (requests.count("json-abi"))
contractData["json-abi"] = m_compiler->getInterface(contractName);
if (requests.count("binary"))
contractData["binary"] = toHex(m_compiler->getBytecode(contractName));
if (requests.count("opcodes"))
contractData["opcodes"] = eth::disassemble(m_compiler->getBytecode(contractName));
if (requests.count("asm"))
{
ostringstream unused;
contractData["asm"] = m_compiler->streamAssembly(unused, contractName, m_sourceCodes, true);
}
if (requests.count("natspec-dev"))
contractData["natspec-dev"] = m_compiler->getMetadata(contractName, DocumentationType::NatspecDev);
if (requests.count("natspec-user"))
contractData["natspec-user"] = m_compiler->getMetadata(contractName, DocumentationType::NatspecUser);
output["contracts"][contractName] = contractData;
}
if (requests.count("ast"))
{
output["sources"] = Json::Value(Json::objectValue);
for (auto const& sourceCode: m_sourceCodes)
{
ASTJsonConverter converter(m_compiler->getAST(sourceCode.first));
output["sources"][sourceCode.first] = Json::Value(Json::objectValue);
output["sources"][sourceCode.first]["AST"] = converter.json();
}
}
cout << Json::FastWriter().write(output) << endl;
}
void CommandLineInterface::handleAst(string const& _argStr)
{
string title;
if (_argStr == g_argAstStr)
title = "Syntax trees:";
else if (_argStr == g_argAstJson)
title = "JSON AST:";
else
BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Illegal argStr for AST"));
// do we need AST output?
if (m_args.count(_argStr))
{
vector<ASTNode const*> asts;
for (auto const& sourceCode: m_sourceCodes)
asts.push_back(&m_compiler->getAST(sourceCode.first));
map<ASTNode const*, eth::GasMeter::GasConsumption> gasCosts;
if (m_compiler->getRuntimeAssemblyItems())
gasCosts = GasEstimator::breakToStatementLevel(
GasEstimator::structuralEstimation(*m_compiler->getRuntimeAssemblyItems(), asts),
asts
);
auto choice = m_args[_argStr].as<OutputType>();
if (outputToStdout(choice))
{
cout << title << endl << endl;
for (auto const& sourceCode: m_sourceCodes)
{
cout << endl << "======= " << sourceCode.first << " =======" << endl;
if (_argStr == g_argAstStr)
{
ASTPrinter printer(
m_compiler->getAST(sourceCode.first),
sourceCode.second,
gasCosts
);
printer.print(cout);
}
else
{
ASTJsonConverter converter(m_compiler->getAST(sourceCode.first));
converter.print(cout);
}
}
}
if (outputToFile(choice))
{
for (auto const& sourceCode: m_sourceCodes)
{
boost::filesystem::path p(sourceCode.first);
ofstream outFile(p.stem().string() + ".ast");
if (_argStr == g_argAstStr)
{
ASTPrinter printer(m_compiler->getAST(sourceCode.first), sourceCode.second);
printer.print(outFile);
}
else
{
ASTJsonConverter converter(m_compiler->getAST(sourceCode.first));
converter.print(outFile);
}
outFile.close();
}
}
}
}
void CommandLineInterface::actOnInput()
{
handleCombinedJSON();
// do we need AST output?
handleAst(g_argAstStr);
handleAst(g_argAstJson);
vector<string> contracts = m_compiler->getContractNames();
for (string const& contract: contracts)
{
if (needsHumanTargetedStdout(m_args))
cout << endl << "======= " << contract << " =======" << endl;
// do we need EVM assembly?
if (m_args.count(g_argAsmStr) || m_args.count(g_argAsmJsonStr))
{
auto choice = m_args.count(g_argAsmStr) ? m_args[g_argAsmStr].as<OutputType>() : m_args[g_argAsmJsonStr].as<OutputType>();
if (outputToStdout(choice))
{
cout << "EVM assembly:" << endl;
m_compiler->streamAssembly(cout, contract, m_sourceCodes, m_args.count(g_argAsmJsonStr));
}
if (outputToFile(choice))
{
ofstream outFile(contract + (m_args.count(g_argAsmJsonStr) ? "_evm.json" : ".evm"));
m_compiler->streamAssembly(outFile, contract, m_sourceCodes, m_args.count(g_argAsmJsonStr));
outFile.close();
}
}
if (m_args.count(g_argGas))
handleGasEstimation(contract);
handleBytecode(contract);
handleSignatureHashes(contract);
handleMeta(DocumentationType::ABIInterface, contract);
handleMeta(DocumentationType::ABISolidityInterface, contract);
handleMeta(DocumentationType::NatspecDev, contract);
handleMeta(DocumentationType::NatspecUser, contract);
} // end of contracts iteration
}
}
}