FieldFieldReuseFunctions.H

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    Copyright (C) 2018-2019 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    the Free Software Foundation, either version 3 of the License, or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#ifndef FieldFieldReuseFunctions_H
#define FieldFieldReuseFunctions_H
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
template<template<class> class Field, class TypeR, class Type1>
struct reuseTmpFieldField
{
    static tmp<FieldField<Field, TypeR>> New
    (
        const tmp<FieldField<Field, Type1>>& tf1
    )
    {
        return FieldField<Field, TypeR>::NewCalculatedType(tf1());
    }
};
 
 
template<template<class> class Field, class TypeR>
struct reuseTmpFieldField<Field, TypeR, TypeR>
{
    static tmp<FieldField<Field, TypeR>> New
    (
        const tmp<FieldField<Field, TypeR>>& tf1,
        const bool initCopy = false
    )
    {
        if (tf1.isTmp())
        {
            return tf1;
        }
 
        auto rtf = FieldField<Field, TypeR>::NewCalculatedType(tf1());
 
        if (initCopy)
        {
            rtf.ref() = tf1();
        }
 
        return rtf;
    }
};
 
 
//- Global function forwards to reuseTmpFieldField::New
template<template<class> class Field, class TypeR>
tmp<FieldField<Field, TypeR>> New
(
    const tmp<FieldField<Field, TypeR>>& tf1,
    const bool initCopy = false
)
{
    return reuseTmpFieldField<Field, TypeR, TypeR>::New(tf1, initCopy);
}
 
 
template
<
    template<class> class Field,
    class TypeR,
    class Type1,
    class Type12,
    class Type2
>
struct reuseTmpTmpFieldField
{
    static tmp<FieldField<Field, TypeR>> New
    (
        const tmp<FieldField<Field, Type1>>& tf1,
        const tmp<FieldField<Field, Type2>>& tf2
    )
    {
        return FieldField<Field, TypeR>::NewCalculatedType(tf1());
    }
};
 
 
template<template<class> class Field, class TypeR, class Type1, class Type12>
struct reuseTmpTmpFieldField<Field, TypeR, Type1, Type12, TypeR>
{
    static tmp<FieldField<Field, TypeR>> New
    (
        const tmp<FieldField<Field, Type1>>& tf1,
        const tmp<FieldField<Field, TypeR>>& tf2
    )
    {
        if (tf2.isTmp())
        {
            return tf2;
        }
 
        return FieldField<Field, TypeR>::NewCalculatedType(tf1());
    }
};
 
 
template<template<class> class Field, class TypeR, class Type2>
struct reuseTmpTmpFieldField<Field, TypeR, TypeR, TypeR, Type2>
{
    static tmp<FieldField<Field, TypeR>> New
    (
        const tmp<FieldField<Field, TypeR>>& tf1,
        const tmp<FieldField<Field, Type2>>& tf2
    )
    {
        if (tf1.isTmp())
        {
            return tf1;
        }
 
        return FieldField<Field, TypeR>::NewCalculatedType(tf1());
    }
};
 
 
template<template<class> class Field, class TypeR>
struct reuseTmpTmpFieldField<Field, TypeR, TypeR, TypeR, TypeR>
{
    static tmp<FieldField<Field, TypeR>> New
    (
        const tmp<FieldField<Field, TypeR>>& tf1,
        const tmp<FieldField<Field, TypeR>>& tf2
    )
    {
        if (tf1.isTmp())
        {
            return tf1;
        }
        else if (tf2.isTmp())
        {
            return tf2;
        }
 
        return FieldField<Field, TypeR>::NewCalculatedType(tf1());
    }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //