TranMap.h

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/*
 * LSST Data Management System
 * Copyright 2017 AURA/LSST.
 *
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program 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.
 *
 * This program 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 LSST License Statement and
 * the GNU General Public License along with this program.  If not,
 * see <https://www.lsstcorp.org/LegalNotices/>.
 */
#ifndef ASTSHIM_TRANMAP_H
#define ASTSHIM_TRANMAP_H

#include <memory>

#include "astshim/base.h"
#include "astshim/Mapping.h"

namespace ast {

class TranMap : public Mapping {
    friend class Object;

public:
    explicit TranMap(Mapping const &map1, Mapping const &map2, std::string const &options = "")
            : Mapping(reinterpret_cast<AstMapping *>(astTranMap(const_cast<AstObject *>(map1.getRawPtr()),
                                                                const_cast<AstObject *>(map2.getRawPtr()),
                                                                "%s", options.c_str()))) {
        assertOK();
    }

    virtual ~TranMap() {}

    TranMap(TranMap const &) = default;
    TranMap(TranMap &&) = default;
    TranMap &operator=(TranMap const &) = delete;
    TranMap &operator=(TranMap &&) = default;

    std::shared_ptr<Mapping> operator[](int i) const { return decompose<Mapping>(i, false); };

    std::shared_ptr<TranMap> copy() const { return std::static_pointer_cast<TranMap>(copyPolymorphic()); }

protected:
    virtual std::shared_ptr<Object> copyPolymorphic() const override {
        return copyImpl<TranMap, AstTranMap>();
    }

    explicit TranMap(AstTranMap *rawptr) : Mapping(reinterpret_cast<AstMapping *>(rawptr)) {
        if (!astIsATranMap(getRawPtr())) {
            std::ostringstream os;
            os << "this is a " << getClassName() << ", which is not a TranMap";
            throw std::invalid_argument(os.str());
        }
    }
};
}  // namespace ast

#endif