Files
openfoam/src/OpenFOAM/db/dictionary/functionEntries/codeStream/codeStream.H

135 lines
3.8 KiB
C++

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2011 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
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::functionEntries::codeStream
Description
Dictionary entry that contains C++ OpenFOAM code that is compiled to
generate the entry itself. So
- codeStream reads three entries: 'code', 'codeInclude' (optional),
'codeOptions' (optional)
and uses those to generate library sources inside constant/codeStream/
- these get compiled using 'wmake libso'
- the resulting library is loaded in executed with as arguments
const dictionary& dict,
Ostream& os
where the dictionary is the current dictionary.
- the code has to write into Ostream which is then used to construct
the actual dictionary entry.
E.g. to set the internal field of a field:
internalField #codeStream
{
code
#{
const IOdictionary& d = static_cast<const IOdictionary&>(dict);
const fvMesh& mesh = refCast<const fvMesh>(d.db());
scalarField fld(mesh.nCells(), 12.34);
fld.writeEntry("", os);
#};
//- Optional:
codeInclude
#{
#include "fvCFD.H"
#};
codeOptions
#{
-I$(LIB_SRC)/finiteVolume/lnInclude
#};
};
Note the #{ #} syntax which is just a way of inputting strings with embedded
newlines.
Limitations:
- '~' symbol not allowed inside the code sections.
- probably some other limitations (uses string::expand which expands $, ~)
SourceFiles
codeStream.C
\*---------------------------------------------------------------------------*/
#ifndef codeStream_H
#define codeStream_H
#include "functionEntry.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace functionEntries
{
/*---------------------------------------------------------------------------*\
Class codeStream Declaration
\*---------------------------------------------------------------------------*/
class codeStream
:
public functionEntry
{
// Private Member Functions
//- Disallow default bitwise copy construct
codeStream(const codeStream&);
//- Disallow default bitwise assignment
void operator=(const codeStream&);
public:
//- Runtime type information
ClassName("codeStream");
// Member Functions
static bool execute
(
const dictionary& parentDict,
primitiveEntry& entry,
Istream& is
);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace functionEntries
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //