LazyCoupleable.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
 
// MOOSE includes
#include "MooseVariableBase.h"
 
// Forward declarations
class InputParameters;
class MooseObject;
class MooseApp;
 
class LazyCoupleable
{
public:
  LazyCoupleable(const MooseObject * moose_object);
 
  virtual ~LazyCoupleable() = default;
 
  void setFEProblemPtr(FEProblemBase * fe_problem);
 
private:
  void init();
 
  unsigned int & coupled(const std::string & var_name, unsigned int comp = 0);
 
  // Reference to the interface's input parameters
  const InputParameters & _l_parameters;
 
  const std::string & _l_name;
 
  FEProblemBase * _l_fe_problem;
 
  MooseApp & _l_app;
 
  std::map<std::string, std::unique_ptr<unsigned int>> _coupled_var_numbers;
};