path: root/libsolc/libsolc.cpp

/*
    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/>.
*/
/**
 * @author Christian <c@ethdev.com>
 * @date 2014
 * Public compiler API.
 */

#include <libsolc/libsolc.h>
#include <libdevcore/Common.h>
#include <libdevcore/JSON.h>
#include <libsolidity/interface/StandardCompiler.h>
#include <libsolidity/interface/Version.h>

#include <string>

#include "license.h"

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

namespace
{

ReadCallback::Callback wrapReadCallback(CStyleReadFileCallback _readCallback = nullptr)
{
    ReadCallback::Callback readCallback;
    if (_readCallback)
    {
        readCallback = [=](string const& _path)
        {
            char* contents_c = nullptr;
            char* error_c = nullptr;
            _readCallback(_path.c_str(), &contents_c, &error_c);
            ReadCallback::Result result;
            result.success = true;
            if (!contents_c && !error_c)
            {
                result.success = false;
                result.responseOrErrorMessage = "File not found.";
            }
            if (contents_c)
            {
                result.success = true;
                result.responseOrErrorMessage = string(contents_c);
                free(contents_c);
            }
            if (error_c)
            {
                result.success = false;
                result.responseOrErrorMessage = string(error_c);
                free(error_c);
            }
            return result;
        };
    }
    return readCallback;
}

string compile(string const& _input, CStyleReadFileCallback _readCallback = nullptr)
{
    StandardCompiler compiler(wrapReadCallback(_readCallback));
    return compiler.compile(_input);
}

}

static string s_outputBuffer;

extern "C"
{
extern char const* solidity_license() noexcept
{
    static string fullLicenseText = otherLicenses + licenseText;
    return fullLicenseText.c_str();
}
extern char const* solidity_version() noexcept
{
    return VersionString.c_str();
}
extern char const* solidity_compile(char const* _input, CStyleReadFileCallback _readCallback) noexcept
{
    s_outputBuffer = compile(_input, _readCallback);
    return s_outputBuffer.c_str();
}
}