/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     3.2
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
    This file is part of foam-extend.

    foam-extend is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
    Free Software Foundation, either version 3 of the License, or (at your
    option) any later version.

    foam-extend is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::CompoundToken

Description
    An abstract base class for managing compound tokens

\*---------------------------------------------------------------------------*/

#ifndef CompoundToken_H
#define CompoundToken_H

#include "refCount.H"
#include "typeInfo.H"
#include "autoPtr.H"
#include "runTimeSelectionTables.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

// Forward declaration of friend functions and operators

class CompoundToken;
Ostream& operator<<(Ostream&, const CompoundToken&);


/*---------------------------------------------------------------------------*\
                           Class CompoundToken Declaration
\*---------------------------------------------------------------------------*/

class CompoundToken
:
    public refCount
{
    // Private Member Functions

        //- Disallow default bitwise copy construct
        CompoundToken(const CompoundToken&);

        //- Disallow default bitwise assignment
        void operator=(const CompoundToken&);


public:

    //- Runtime type information
    virtual const word& type() const = 0;


    // Declare run-time constructor selection tables

        declareRunTimeSelectionTable
        (
            autoPtr,
            CompoundToken,
            Istream,
            (const word& type, Istream& is),
            (type, is)
        );


    // Constructors

        //- Construct null
        CompoundToken()
        {}

        //- Return the clone as this and increment reference count
        virtual autoPtr<CompoundToken> clone() const = 0;


    // Selectors

        //- Select null constructed
        static autoPtr<CompoundToken> New(const word& type, Istream& is);


    // Destructor

        virtual ~CompoundToken();


    // Member Functions

        // Access

        // Check

        // Edit

        // Write

            virtual void write(Istream&) = 0;


    // IOstream Operators

        friend Ostream& operator<<(Ostream&, const CompoundToken&);
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //