CodedField.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2020-2021 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::PatchFunction1Types::CodedField
 
Description
    PatchFunction1 with the code supplied by an on-the-fly compiled C++
    expression.
 
    The code entries:
    \plaintable
       codeInclude | include files
       codeOptions | compiler line: added to EXE_INC (Make/options)
       codeLibs    | linker line: added to LIB_LIBS (Make/options)
       localCode   | c++; local static functions
       code        | c++; return the patch values at (scalar x)
    \endplaintable
 
Usage
    Example:
    \verbatim
    <patchName>
    {
        type            uniformFixedValue;
        uniformValue
        {
            type  coded;
            name  myExpression;  // Name of generated PatchFunction1
 
            code
            #{
                const polyPatch& pp = this->patch();
                Pout<< "** Patch size:" << pp.size() << endl;
                return tmp<vectorField>::New(pp.size(), vector(1, 0, 0))
            #};
 
            //codeInclude
            //#{
            //    #include "volFields.H"
            //#};
 
            //codeOptions
            //#{
            //    -I$(LIB_SRC)/finiteVolume/lnInclude
            //#};
        }
    }
    \endverbatim
 
Note
    The code context dictionary is simply the dictionary used to specify
    the PatchFunction1 coefficients.
 
See also
    Foam::dynamicCode
    Foam::codedFixedValue
    Foam::functionEntries::codeStream
 
SourceFiles
    CodedField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef PatchFunction1Types_CodedField_H
#define PatchFunction1Types_CodedField_H
 
#include "PatchFunction1.H"
#include "codedBase.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace PatchFunction1Types
{
 
/*---------------------------------------------------------------------------*\
                         Class CodedField Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class CodedField
:
    public PatchFunction1<Type>,
    protected codedBase
{
    // Private Data
 
        //- Dictionary contents for the function
        const dictionary dict_;
 
        const word redirectName_;
 
        mutable autoPtr<PatchFunction1<Type>> redirectFunctionPtr_;
 
 
    // Private Member Functions
 
        //- Get reference to the underlying Function1
        const PatchFunction1<Type>& redirectFunction() const;
 
 
protected:
 
    // Protected Member Functions
 
        //- Mutable access to the loaded dynamic libraries
        virtual dlLibraryTable& libs() const;
 
        //- Description (type + name) for the output
        virtual string description() const;
 
        //- Clear redirected object(s)
        virtual void clearRedirect() const;
 
        //- Additional 'codeContext' dictionary to pass through
        virtual const dictionary& codeContext() const;
 
        // Get the code (sub)dictionary
        virtual const dictionary& codeDict(const dictionary& dict) const;
 
        // Get the code dictionary
        virtual const dictionary& codeDict() const;
 
        //- Adapt the context for the current object
        virtual void prepare(dynamicCode&, const dynamicCodeContext&) const;
 
 
        //- No copy assignment
        void operator=(const CodedField<Type>&) = delete;
 
public:
 
    // Static Data Members
 
        //- Name of the C code template to be used
        static constexpr const char* const codeTemplateC
            = "codedPatchFunction1Template.C";
 
        //- Name of the H code template to be used
        static constexpr const char* const codeTemplateH
            = "codedPatchFunction1Template.H";
 
 
    //- Runtime type information
    TypeName("coded");
 
 
    // Constructors
 
        //- Construct from entry name and dictionary
        CodedField
        (
            const polyPatch& pp,
            const word& redirectType,
            const word& entryName,
            const dictionary& dict,
            const bool faceValues = true
        );
 
        //- Copy construct
        explicit CodedField(const CodedField<Type>& rhs);
 
        //- Copy construct, setting patch
        explicit CodedField
        (
            const CodedField<Type>& rhs,
            const polyPatch& pp
        );
 
        //- Construct and return a clone
        virtual tmp<PatchFunction1<Type>> clone() const
        {
            return tmp<PatchFunction1<Type>>
            (
                new CodedField<Type>(*this)
            );
        }
 
        //- Construct and return a clone setting patch
        virtual tmp<PatchFunction1<Type>> clone(const polyPatch& pp) const
        {
            return tmp<PatchFunction1<Type>>
            (
                new CodedField<Type>(*this, pp)
            );
        }
 
 
    //- Destructor
    virtual ~CodedField() = default;
 
 
    // Member Functions
 
        //- Is value uniform (i.e. independent of coordinate)
        virtual inline bool uniform() const { return false; }
 
 
        // Evaluation
 
            //- Return CodedField value
            virtual tmp<Field<Type>> value(const scalar x) const;
 
            //- Integrate between two values
            virtual tmp<Field<Type>> integrate
            (
                const scalar x1,
                const scalar x2
            ) const;
 
 
        // Mapping
 
            //- Map (and resize as needed) from self given a mapping object
            virtual void autoMap(const FieldMapper& mapper);
 
            //- Reverse map the given PatchFunction1 onto this PatchFunction1
            virtual void rmap
            (
                const PatchFunction1<Type>& pf1,
                const labelList& addr
            );
 
 
        // I-O
 
            //- Write in dictionary format
            virtual void writeData(Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace PatchFunction1Types
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "CodedField.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //