restrictprolongtuple.hh

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#ifndef DUNE_FEM_SPACE_COMMON_RESTRICTPROLONGTUPLE_HH
#define DUNE_FEM_SPACE_COMMON_RESTRICTPROLONGTUPLE_HH
 
#include <tuple>
#include <utility>
 
#include <dune/fem/common/forloop.hh>
#include <dune/common/tupleutility.hh>
 
#include <dune/fem/space/common/restrictprolonginterface.hh>
 
namespace Dune
{
 
  namespace Fem
  {
 
    // Internal forward declaration
    // ----------------------------
 
    template< class... RestrictProlongInterfaces >
    class RestrictProlongTuple;
    template< class... DiscreteFunctions >
    class RestrictProlongDefaultTuple;
 
 
 
    // RestrictProlongTuple
    // --------------------
 
    template< class Head, class... Tail >
    class RestrictProlongTuple< Head, Tail... >
    : public Dune::Fem::RestrictProlongInterface< RestrictProlongTraits< RestrictProlongTuple< Head, Tail... >, typename Head::DomainFieldType > >
    {
      typedef Dune::Fem::RestrictProlongInterface< RestrictProlongTraits< RestrictProlongTuple< Head, Tail... >, typename Head::DomainFieldType > > BaseType;
 
      template< int i > struct AddToList;
      template< int i > struct AddToLoadBalancer;
      template< int i > struct ProlongLocal;
      template< int i > struct RestrictLocal;
      template< int i > struct SetFatherChildWeight;
      template< int i > struct Initialize;
      template< int i > struct Finalize;
 
    public:
      typedef typename BaseType::DomainFieldType DomainFieldType;
 
      explicit RestrictProlongTuple ( Head &&head, Tail &&... tail )
        : tuple_( std::forward< Head >( head ), std::forward< Tail >( tail )... )
      {}
 
      explicit RestrictProlongTuple ( std::tuple< Head, Tail... > &&tuple )
        : tuple_( tuple )
      {}
 
      void initialize ()
      {
        Dune::Fem::ForLoop< Initialize, 0, sizeof...( Tail ) >::apply( tuple_ );
      }
 
      void finalize ()
      {
        Dune::Fem::ForLoop< Finalize, 0, sizeof...( Tail ) >::apply( tuple_ );
      }
 
      void setFatherChildWeight ( const DomainFieldType &weight ) const
      {
        Dune::Fem::ForLoop< SetFatherChildWeight, 0, sizeof...( Tail ) >::apply( weight, tuple_ );
      }
 
      template< class Entity >
      void restrictLocal ( const Entity &father, const Entity &child, bool initialize ) const
      {
        Dune::Fem::ForLoop< RestrictLocal, 0, sizeof...( Tail ) >::apply( father, child, initialize, tuple_ );
      }
 
      template< class Entity, class LocalGeometry >
      void restrictLocal ( const Entity &father, const Entity &child,
                           const LocalGeometry &geometryInFather, bool initialize ) const
      {
        Dune::Fem::ForLoop< RestrictLocal, 0, sizeof...( Tail ) >::apply( father, child, geometryInFather, initialize, tuple_ );
      }
 
      template< class Entity >
      void restrictFinalize ( const Entity &father ) const
      {
      }
 
      template< class Entity >
      void prolongLocal ( const Entity &father, const Entity &child, bool initialize ) const
      {
        Dune::Fem::ForLoop< ProlongLocal, 0, sizeof...( Tail ) >::apply( father, child, initialize, tuple_ );
      }
 
      template< class Entity, class LocalGeometry >
      void prolongLocal ( const Entity &father, const Entity &child,
                          const LocalGeometry &geometryInFather, bool initialize ) const
      {
        Dune::Fem::ForLoop< ProlongLocal, 0, sizeof...( Tail ) >::apply( father, child, geometryInFather, initialize, tuple_ );
      }
 
      template< class Communicator, class Operation >
      void addToList ( Communicator &comm, const Operation& op )
      {
        Dune::Fem::ForLoop< AddToList, 0, sizeof...( Tail ) >::apply( comm, tuple_, op );
      }
 
      template< class Communicator >
      void addToList ( Communicator &comm )
      {
        Dune::Fem::ForLoop< AddToList, 0, sizeof...( Tail ) >::apply( comm, tuple_ );
      }
 
      template< class LoadBalancer >
      void addToLoadBalancer ( LoadBalancer &loadBalancer )
      {
        Dune::Fem::ForLoop< AddToLoadBalancer, 0, sizeof...( Tail ) >::apply( loadBalancer, tuple_ );
      }
 
    private:
      std::tuple< Head, Tail... > tuple_;
    };
 
 
 
    // RestrictProlongTuple< Head, Tail... >::AddToList
    // ------------------------------------------------
 
    template< class Head, class... Tail >
    template< int i >
    struct RestrictProlongTuple< Head, Tail... >::AddToList
    {
      template< class Communicator, class Operation >
      static void apply ( Communicator &comm, std::tuple< Head, Tail... > &tuple, const Operation& op )
      {
        std::get< i >( tuple ).addToList( comm, op );
      }
 
      template< class Communicator >
      static void apply ( Communicator &comm, std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).addToList( comm );
      }
    };
 
 
 
    // RestrictProlongTuple< Head, Tail... >::AddToLoadBalancer
    // --------------------------------------------------------
 
    template< class Head, class... Tail >
    template< int i >
    struct RestrictProlongTuple< Head, Tail... >::AddToLoadBalancer
    {
      template< class LoadBalancer >
      static void apply ( LoadBalancer &loadBalancer, std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).addToLoadBalancer( loadBalancer );
      }
    };
 
 
 
    // RestrictProlongTuple< Head, Tail... >::ProlongLocal
    // ---------------------------------------------------
 
    template< class Head, class... Tail >
    template< int i >
    struct RestrictProlongTuple< Head, Tail... >::ProlongLocal
    {
      template< class Entity >
      static void apply ( const Entity &father, const Entity &child, bool initialize,
                          const std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).prolongLocal( father, child, initialize );
      }
 
      template< class Entity, class LocalGeometry >
      static void apply ( const Entity &father, const Entity &child, const LocalGeometry &geometryInFather, bool initialize,
                          const std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).prolongLocal( father, child, geometryInFather, initialize );
      }
    };
 
 
 
    // RestrictProlongTuple< Head, Tail... >::RestrictLocal
    // ----------------------------------------------------
 
    template< class Head, class... Tail >
    template< int i >
    struct RestrictProlongTuple< Head, Tail... >::RestrictLocal
    {
      template< class Entity >
      static void apply ( const Entity &father, const Entity &child, bool initialize,
                          const std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).restrictLocal( father, child, initialize );
      }
 
      template< class Entity, class LocalGeometry >
      static void apply ( const Entity &father, const Entity &child, const LocalGeometry &geometryInFather, bool initialize,
                          const std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).restrictLocal( father, child, geometryInFather, initialize );
      }
    };
 
 
 
    // RestrictProlongTuple< Head, Tail... >::SetFatherChildWeight
    // -----------------------------------------------------------
 
    template< class Head, class... Tail >
    template< int i >
    struct RestrictProlongTuple< Head, Tail... >::SetFatherChildWeight
    {
      static void apply ( const DomainFieldType &weight, const std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).setFatherChildWeight( weight );
      }
    };
 
 
    // RestrictProlongTuple< Head, Tail... >::Initialize
    // -------------------------------------------------
 
    template< class Head, class... Tail >
    template< int i >
    struct RestrictProlongTuple< Head, Tail... >::Initialize
    {
      static void apply ( std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).initialize();
      }
    };
 
 
    // RestrictProlongTuple< Head, Tail... >::Finalize
    // -----------------------------------------------
 
    template< class Head, class... Tail >
    template< int i >
    struct RestrictProlongTuple< Head, Tail... >::Finalize
    {
      static void apply ( std::tuple< Head, Tail... > &tuple )
      {
        std::get< i >( tuple ).finalize();
      }
    };
 
 
 
    // RestrictProlongDefaultTuple
    // ---------------------------
 
    template< class... DiscreteFunctions >
    class RestrictProlongDefaultTuple
    : public RestrictProlongTuple< RestrictProlongDefault< DiscreteFunctions >... >
    {
      typedef RestrictProlongTuple< RestrictProlongDefault< DiscreteFunctions >... > BaseType;
 
      template< class DiscreteFunction >
      struct Operation
      {
        typedef typename std::decay< DiscreteFunction >::type DiscreteFunctionType;
        typedef RestrictProlongDefault< DiscreteFunctionType > Type;
 
        static Type apply ( DiscreteFunctionType &discreteFunction )
        {
          return Type( discreteFunction );
        }
      };
 
    public:
      explicit RestrictProlongDefaultTuple ( DiscreteFunctions &... discreteFunctions )
        : BaseType( RestrictProlongDefault< DiscreteFunctions >( discreteFunctions )... )
      {}
 
      explicit RestrictProlongDefaultTuple ( std::tuple< DiscreteFunctions &... > tuple )
        : BaseType( Dune::transformTuple< Operation >( tuple ) )
      {}
    };
 
    // RestrictProlongDefaultTraits
    template<class... DiscreteFunctions>
    struct RestrictProlongDefaultTraits
    {
      typedef RestrictProlongDefaultTuple<DiscreteFunctions...> Type;
    };
 
    template<class... DiscreteFunctions>
    struct RestrictProlongDefaultTraits<std::tuple<DiscreteFunctions&...> >
    {
      typedef RestrictProlongDefaultTuple<DiscreteFunctions...> Type;
    };
 
  } // namespace Fem
 
} // namespace Dune
 
#endif // #ifndef DUNE_FEM_SPACE_COMMON_RESTRICTPROLONGTUPLE_HH