exprResultStack.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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-------------------------------------------------------------------------------
    Copyright (C) 2012-2018 Bernhard Gschaider
    Copyright (C) 2019-2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM 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.
 
    OpenFOAM 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 OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::expressions::exprResultStack
 
Description
    A stack of polymorphic fields.
    Can be used to build a list of results one at a time.
 
SourceFiles
    exprResultStack.C
    exprResultStackTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_expressions_exprResultStack_H
#define Foam_expressions_exprResultStack_H
 
#include "exprResult.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace expressions
{
 
/*---------------------------------------------------------------------------*\
                       Class exprResultStack Declaration
\*---------------------------------------------------------------------------*/
 
class exprResultStack
:
    public expressions::exprResult
{
    // Private Data
 
        //- Type-checked pop value.
        //  \return True if the type check was satisfied
        template<class T>
        bool popChecked(exprResult& result);
 
        //- Type-checked push value.
        //  \return True if the type check was satisfied
        template<class T>
        bool pushChecked(const exprResult& result);
 
 
public:
 
        //- Runtime type information
        TypeName("exprResultStack");
 
 
    // Constructors
 
        //- Default construct
        exprResultStack();
 
        //- Copy construct
        exprResultStack(const exprResultStack& rhs);
 
        //- Construct from a dictionary
        explicit exprResultStack(const dictionary& dict);
 
 
    // Selectors
 
        virtual autoPtr<exprResult> clone() const
        {
            return autoPtr<exprResult>
            (
                new exprResultStack(*this)
            );
        }
 
 
    //- Destructor
    virtual ~exprResultStack() = default;
 
 
    // Member Functions
 
        //- Pop the last value as an expression result
        exprResult pop();
 
        //- Push an expression result value
        void push(const exprResult& result);
 
 
    // Member Operators
 
        //- Copy assignment
        void operator=(const exprResultStack& rhs);
 
        //- Copy assignment
        void operator=(const exprResult& rhs);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace expressions
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "exprResultStackTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //