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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 Christian <c@ethdev.com>
 * @date 2014
 * Solidity commandline compiler.
 */

#include <string>
#include <iostream>

#include <libdevcore/Common.h>
#include <libdevcore/CommonData.h>
#include <libdevcore/CommonIO.h>
#include <libevmcore/Instruction.h>
#include <libsolidity/Scanner.h>
#include <libsolidity/Parser.h>
#include <libsolidity/ASTPrinter.h>
#include <libsolidity/NameAndTypeResolver.h>
#include <libsolidity/Exceptions.h>
#include <libsolidity/CompilerStack.h>
#include <libsolidity/SourceReferenceFormatter.h>

using namespace std;
using namespace dev;
using namespace solidity;

void help()
{
    cout << "Usage solc [OPTIONS] <file>" << endl
         << "Options:" << endl
         << "    -o,--optimize Optimize the bytecode for size." << endl
         << "    -h,--help     Show this help message and exit." << endl
         << "    -V,--version  Show the version and exit." << endl;
    exit(0);
}

void version()
{
    cout << "solc, the solidity complier commandline interface " << dev::Version << endl
         << "  by Christian <c@ethdev.com>, (c) 2014." << endl
         << "Build: " << DEV_QUOTED(ETH_BUILD_PLATFORM) << "/" << DEV_QUOTED(ETH_BUILD_TYPE) << endl;
    exit(0);
}

int main(int argc, char** argv)
{
    string infile;
    bool optimize = false;
    for (int i = 1; i < argc; ++i)
    {
        string arg = argv[i];
        if (arg == "-o" || arg == "--optimize")
            optimize = true;
        else if (arg == "-h" || arg == "--help")
            help();
        else if (arg == "-V" || arg == "--version")
            version();
        else
            infile = argv[i];
    }
    string sourceCode;
    if (infile.empty())
    {
        string s;
        while (!cin.eof())
        {
            getline(cin, s);
            sourceCode.append(s);
        }
    }
    else
        sourceCode = asString(dev::contents(infile));

    CompilerStack compiler;
    try
    {
        compiler.compile(sourceCode, optimize);
    }
    catch (ParserError const& exception)
    {
        SourceReferenceFormatter::printExceptionInformation(cerr, exception, "Parser error", compiler.getScanner());
        return -1;
    }
    catch (DeclarationError const& exception)
    {
        SourceReferenceFormatter::printExceptionInformation(cerr, exception, "Declaration error", compiler.getScanner());
        return -1;
    }
    catch (TypeError const& exception)
    {
        SourceReferenceFormatter::printExceptionInformation(cerr, exception, "Type error", compiler.getScanner());
        return -1;
    }
    catch (CompilerError const& exception)
    {
        SourceReferenceFormatter::printExceptionInformation(cerr, exception, "Compiler error", compiler.getScanner());
        return -1;
    }
    catch (InternalCompilerError const& exception)
    {
        SourceReferenceFormatter::printExceptionInformation(cerr, exception, "Internal compiler error", compiler.getScanner());
        return -1;
    }
    catch (Exception const& exception)
    {
        cerr << "Exception during compilation: " << boost::diagnostic_information(exception) << endl;
        return -1;
    }
    catch (...)
    {
        cerr << "Unknown exception during compilation." << endl;
        return -1;
    }

    cout << "Syntax tree for the contract:" << endl;
    ASTPrinter printer(compiler.getAST(), sourceCode);
    printer.print(cout);
    cout << "EVM assembly:" << endl;
    compiler.streamAssembly(cout);
    cout << "Opcodes:" << endl;
    cout << eth::disassemble(compiler.getBytecode()) << endl;
    cout << "Binary: " << toHex(compiler.getBytecode()) << endl;
    cout << "Interface specification: " << compiler.getInterface() << endl;

    return 0;
}