ParsedODEKernel.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "ODEKernel.h"
#include "FunctionParserUtils.h"
 
class ParsedODEKernel : public ODEKernel, public FunctionParserUtils<false>
{
public:
  static InputParameters validParams();
 
  ParsedODEKernel(const InputParameters & parameters);
 
protected:
  void updateParams();
 
  virtual Real computeQpResidual() override;
  virtual Real computeQpJacobian() override;
  virtual Real computeQpOffDiagJacobianScalar(unsigned int jvar) override;
 
  std::string _function;
 
  unsigned int _nargs;
  std::vector<const VariableValue *> _args;
  std::vector<std::string> _arg_names;
 
  SymFunctionPtr _func_F;
  SymFunctionPtr _func_dFdu;
 
  std::vector<SymFunctionPtr> _func_dFdarg;
 
  const unsigned int _number_of_nl_variables;
 
  std::vector<const PostprocessorValue *> _pp;
 
  usingFunctionParserUtilsMembers(false);
 
private:
  std::vector<unsigned int> _arg_index;
};