Resolvable.h

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#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