PythonInterp.hpp

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/*
  Copyright 2019 Equinor ASA.
 
  This file is part of the Open Porous Media project (OPM).
 
  OPM 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.
 
  OPM 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 OPM.  If not, see <http://www.gnu.org/licenses/>.
*/
 
 
#ifndef PYTHON_INTERP
#define PYTHON_INTERP
 
#include <string>
#include <stdexcept>
#include <memory>
 
#include <opm/parser/eclipse/EclipseState/Schedule/SummaryState.hpp>
#include <opm/parser/eclipse/EclipseState/Schedule/Schedule.hpp>
#include <opm/parser/eclipse/EclipseState/Schedule/Action/PyAction.hpp>
#include <opm/parser/eclipse/EclipseState/EclipseState.hpp>
 
 
#ifdef EMBEDDED_PYTHON
 
#include <pybind11/embed.h>
namespace py = pybind11;
#endif
 
 
 
namespace Opm {
 
#ifdef EMBEDDED_PYTHON
class Parser;
class Deck;
 
 
class __attribute__ ((visibility("hidden"))) PythonInterp {
public:
    explicit PythonInterp(bool enable);
    bool exec(const std::string& python_code);
    bool exec(const std::string& python_code, const Parser& parser, Deck& deck);
    static bool supported() { return true; };
    explicit operator bool() const { return bool(this->guard); }
private:
    void load_module(const std::string& python_file);
    bool exec(const std::string& python_code, py::module& context);
 
    std::unique_ptr<py::scoped_interpreter> guard;
};
 
 
#else
 
class PythonInterp {
public:
    explicit PythonInterp(bool enable) {
        if (enable)
            this->fail();
    }
 
    bool exec(const std::string&) {
        return this->fail();
    };
 
    bool exec(const std::string&, const Parser&, Deck&) {
        return this->fail();
    }
 
    bool exec(const Action::PyAction&, EclipseState&, Schedule&, std::size_t, SummaryState& ) {
        return this->fail();
    }
 
    static bool supported() { return false; };
    explicit operator bool() const { return false; }
private:
    bool fail() { throw std::logic_error("The current opm code has been built without Python support;"); }
};
 
#endif
 
}
 
#endif