DimensionedFieldReuseFunctions.H

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#ifndef Foam_DimensionedFieldReuseFunctions_H
#define Foam_DimensionedFieldReuseFunctions_H

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

namespace Foam
{

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

template<class TypeR, class Type1, class GeoMesh>
struct reuseTmpDimensionedField
{
    static tmp<DimensionedField<TypeR, GeoMesh>> New
    (
        const tmp<DimensionedField<Type1, GeoMesh>>& tdf1,
        const word& name,
        const dimensionSet& dimensions
    )
    {
        const auto& df1 = tdf1();

        return tmp<DimensionedField<TypeR, GeoMesh>>::New
        (
            IOobject
            (
                name,
                df1.instance(),
                df1.db()
            ),
            df1.mesh(),
            dimensions
        );
    }
};


template<class TypeR, class GeoMesh>
struct reuseTmpDimensionedField<TypeR, TypeR, GeoMesh>
{
    //- Allow optional copy assignment of the initial content
    //- for identical input and output types
    static tmp<DimensionedField<TypeR, GeoMesh>> New
    (
        const tmp<DimensionedField<TypeR, GeoMesh>>& tdf1,
        const word& name,
        const dimensionSet& dimensions,
        const bool initCopy = false
    )
    {
        if (tdf1.movable())
        {
            auto& df1 = tdf1.constCast();

            df1.rename(name);
            df1.dimensions().reset(dimensions);
            return tdf1;
        }

        const auto& df1 = tdf1();

        auto tresult = tmp<DimensionedField<TypeR, GeoMesh>>::New
        (
            IOobject
            (
                name,
                df1.instance(),
                df1.db()
            ),
            df1.mesh(),
            dimensions
        );

        if (initCopy)
        {
            tresult.ref().field() = tdf1().field();
        }

        return tresult;
    }
};


//- Global function forwards to reuseTmpDimensionedField::New
template<class TypeR, class GeoMesh>
tmp<DimensionedField<TypeR, GeoMesh>> New
(
    const tmp<DimensionedField<TypeR, GeoMesh>>& tdf1,
    const word& name,
    const dimensionSet& dimensions,
    const bool initCopy = false
)
{
    return reuseTmpDimensionedField<TypeR, TypeR, GeoMesh>::New
    (
        tdf1,
        name,
        dimensions,
        initCopy
    );
}


template<class TypeR, class Type1, class Type12, class Type2, class GeoMesh>
struct reuseTmpTmpDimensionedField
{
    static tmp<DimensionedField<TypeR, GeoMesh>> New
    (
        const tmp<DimensionedField<Type1, GeoMesh>>& tdf1,
        const tmp<DimensionedField<Type2, GeoMesh>>& tdf2,
        const word& name,
        const dimensionSet& dimensions
    )
    {
        const auto& df1 = tdf1();

        return tmp<DimensionedField<TypeR, GeoMesh>>::New
        (
            IOobject
            (
                name,
                df1.instance(),
                df1.db()
            ),
            df1.mesh(),
            dimensions
        );
    }
};


template<class TypeR, class Type1, class Type12, class GeoMesh>
struct reuseTmpTmpDimensionedField<TypeR, Type1, Type12, TypeR, GeoMesh>
{
    static tmp<DimensionedField<TypeR, GeoMesh>> New
    (
        const tmp<DimensionedField<Type1, GeoMesh>>& tdf1,
        const tmp<DimensionedField<TypeR, GeoMesh>>& tdf2,
        const word& name,
        const dimensionSet& dimensions
    )
    {
        if (tdf2.movable())
        {
            auto& df2 = tdf2.constCast();

            df2.rename(name);
            df2.dimensions().reset(dimensions);
            return tdf2;
        }

        const auto& df1 = tdf1();

        return tmp<DimensionedField<TypeR, GeoMesh>>::New
        (
            IOobject
            (
                name,
                df1.instance(),
                df1.db()
            ),
            df1.mesh(),
            dimensions
        );
    }
};


template<class TypeR, class Type2, class GeoMesh>
struct reuseTmpTmpDimensionedField<TypeR, TypeR, TypeR, Type2, GeoMesh>
{
    static tmp<DimensionedField<TypeR, GeoMesh>> New
    (
        const tmp<DimensionedField<TypeR, GeoMesh>>& tdf1,
        const tmp<DimensionedField<Type2, GeoMesh>>& tdf2,
        const word& name,
        const dimensionSet& dimensions
    )
    {
        if (tdf1.movable())
        {
            auto& df1 = tdf1.constCast();

            df1.rename(name);
            df1.dimensions().reset(dimensions);
            return tdf1;
        }

        const auto& df1 = tdf1();

        return tmp<DimensionedField<TypeR, GeoMesh>>::New
        (
            IOobject
            (
                name,
                df1.instance(),
                df1.db()
            ),
            df1.mesh(),
            dimensions
        );
    }
};


template<class TypeR, class GeoMesh>
struct reuseTmpTmpDimensionedField<TypeR, TypeR, TypeR, TypeR, GeoMesh>
{
    static tmp<DimensionedField<TypeR, GeoMesh>> New
    (
        const tmp<DimensionedField<TypeR, GeoMesh>>& tdf1,
        const tmp<DimensionedField<TypeR, GeoMesh>>& tdf2,
        const word& name,
        const dimensionSet& dimensions
    )
    {
        if (tdf1.movable())
        {
            auto& df1 = tdf1.constCast();

            df1.rename(name);
            df1.dimensions().reset(dimensions);
            return tdf1;
        }
        if (tdf2.movable())
        {
            auto& df2 = tdf2.constCast();

            df2.rename(name);
            df2.dimensions().reset(dimensions);
            return tdf2;
        }

        const auto& df1 = tdf1();

        return tmp<DimensionedField<TypeR, GeoMesh>>::New
        (
            IOobject
            (
                name,
                df1.instance(),
                df1.db()
            ),
            df1.mesh(),
            dimensions
        );
    }
};


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

} // End namespace Foam

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

#endif

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