Resolvable.h

Go to the documentation of this file.

/*---------------------------------------------------------------------\
|                          ____ _   __ __ ___                          |
|                         |__  / \ / / . \ . \                         |
|                           / / \ V /|  _/  _/                         |
|                          / /__ | | | | | |                           |
|                         /_____||_| |_| |_|                           |
|                                                                      |
\---------------------------------------------------------------------*/
#ifndef ZYPP_RESOLVABLE_H
#define ZYPP_RESOLVABLE_H

#include <iosfwd>
#include <string>

#include "zypp/APIConfig.h"

#include "zypp/base/ReferenceCounted.h"
#include "zypp/base/NonCopyable.h"
#include "zypp/base/PtrTypes.h"

#include "zypp/sat/SolvableType.h"

namespace zypp
{
  class PoolItem;
  class Resolvable : public sat::SolvableType<Resolvable>,
                     public base::ReferenceCounted, private base::NonCopyable
  {
    friend std::ostream & operator<<( std::ostream & str, const Resolvable & obj );

  public:
    typedef Resolvable               Self;
    typedef ResTraits<Self>          TraitsType;
    typedef TraitsType::KindType     Kind;
    typedef TraitsType::PtrType      Ptr;
    typedef TraitsType::constPtrType constPtr;

  public:
    explicit operator sat::Solvable() const
    { return _solvable; }

    PoolItem poolItem() const;

  protected:
    Resolvable( const sat::Solvable & solvable_r );
    virtual ~Resolvable();
    virtual std::ostream & dumpOn( std::ostream & str ) const;

  private:
    sat::Solvable _solvable;
 };

 inline std::ostream & operator<<( std::ostream & str, const Resolvable & obj )
 { return obj.dumpOn( str ); }

 inline std::ostream & dumpOn( std::ostream & str, const Resolvable & obj )
 { return dumpOn( str, obj.satSolvable() ); }

 template<class TRes>
 inline bool isKind( const Resolvable::constPtr & p )
 { return p && p->isKind<TRes>(); }

 // Specialization for Resolvable: Always true.
 template<>
 inline bool isKind<Resolvable>( const Resolvable::constPtr & p )
 { return !!p; }

 // Specialization for ResObject: Always true.
 template<>
 inline bool isKind<ResObject>( const Resolvable::constPtr & p )
 { return !!p; }


 template<class TRes>
 inline typename ResTraits<TRes>::PtrType asKind( const Resolvable::Ptr & p )
 { return dynamic_pointer_cast<TRes>(p); }

 template<class TRes>
 inline typename ResTraits<TRes>::constPtrType asKind( const Resolvable::constPtr & p )
 { return dynamic_pointer_cast<const TRes>(p); }


  inline int compareByN( const Resolvable::constPtr & lhs, const Resolvable::constPtr & rhs )
  {
    int ret = 0;
    if ( lhs != rhs )
    {
      if ( lhs && rhs )
        ret = compareByN( *lhs, *rhs );
      else
        ret = lhs ? 1 : -1;
    }
    return ret;
  }

  inline int compareByNVR( const Resolvable::constPtr & lhs, const Resolvable::constPtr & rhs )
  {
    int ret = 0;
    if ( lhs != rhs )
    {
      if ( lhs && rhs )
        ret = compareByNVR( *lhs, *rhs );
      else
        ret = lhs ? 1 : -1;
    }
    return ret;
  }

  inline int compareByNVRA( const Resolvable::constPtr & lhs, const Resolvable::constPtr & rhs )
  {
    int ret = 0;
    if ( lhs != rhs )
    {
      if ( lhs && rhs )
        ret = compareByNVRA( *lhs, *rhs );
      else
        ret = lhs ? 1 : -1;
    }
    return ret;
  }
} // namespace zypp
#endif // ZYPP_RESOLVABLE_H