parsing_chain.h

/*********************************************************************************************************************************************/
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/*                                                                                                                                           */
/*  Copyright (c) SILVERCODERS Ltd, http://silvercoders.com                                                                                  */
/*  Project homepage: https://github.com/docwire/docwire                                                                                     */
/*                                                                                                                                           */
/*  SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-DocWire-Commercial                                                                  */
/*********************************************************************************************************************************************/
 
#ifndef DOCWIRE_PARSING_CHAIN_H
#define DOCWIRE_PARSING_CHAIN_H
 
#include "chain_element.h"
#include "core_export.h"
#include "pimpl.h"
#include "ref_or_owned.h"
 
namespace docwire
{
 
namespace pipeline
{
struct start_processing {};
} // namespace pipeline
 
class DOCWIRE_CORE_EXPORT parsing_chain : public chain_element, public with_pimpl<parsing_chain>
{
  public:
    parsing_chain(ref_or_owned<chain_element> lhs, ref_or_owned<chain_element> rhs);
    parsing_chain(parsing_chain&& chain);
    parsing_chain& operator=(parsing_chain&& chain);
 
    void operator()(message_ptr msg);
 
    bool is_leaf() const override;
    bool is_generator() const override;
 
    bool is_complete() const;
 
  protected:
    virtual continuation operator()(message_ptr msg, const message_callbacks& emit_message) override;
 
  private:
    using with_pimpl<parsing_chain>::impl;
};
 
DOCWIRE_CORE_EXPORT parsing_chain operator|(ref_or_owned<chain_element> lhs, ref_or_owned<chain_element> rhs);
 
inline parsing_chain& operator|=(parsing_chain& lhs, ref_or_owned<chain_element> rhs)
{
  lhs = std::move(lhs) | rhs;
  return lhs;
}
 
} // namespace docwire
 
#endif //DOCWIRE_PARSING_CHAIN_H