IMacro.h

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/*
 * Copyright (C) 2025 by
 *   MetraLabs GmbH (MLAB), GERMANY
 * and
 *   Neuroinformatics and Cognitive Robotics Labs (NICR) at TU Ilmenau, GERMANY
 * All rights reserved.
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 * Contact: info@mira-project.org
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#ifndef _MIRA_XML_MACROS_IXML_MACRO_H_
#define _MIRA_XML_MACROS_IXML_MACRO_H_

#include <memory>

#include <ostream>
#include <xml/XMLDom.h>

#include <xml/macros/Types.h>

namespace mira {

// f.d.
class XMLMacroProcessor;

} // namespace mira

namespace mira::xmlmacros {

class IMacro
{
public:
    template<typename Reflector>
    void reflect(Reflector& r)
    {}

    virtual XMLNode expand(XMLMacroProcessor&, XMLNode ioNode) = 0;

    [[nodiscard]] virtual bool canCoerceToString() const
    {
        return false;
    }

    virtual void coerceToString(XMLMacroProcessor&, std::ostream&) {}

    [[nodiscard]] virtual std::optional<SourceInfo> getSource() const {
        return std::nullopt;
    }

    virtual ~IMacro() = default;

}; // class IMacro

using MacroPtr = std::shared_ptr<IMacro>;

}; // namespace mira::xmlmacros

#endif // _MIRA_XML_MACROS_IXML_MACRO_H_