#ifndef EFUNC_DEC_H
#define EFUNC_DEC_H

#include "eutils.h"
#include <typeinfo>

class efuncBase;
class estr;
class evar;

#include "ebasicarray_dec.h"
#include "evararray.h"
#include "estr.h"

class eclassMethodBase;

class efunc
{
  void updateInfo();
  void setDefaultArgs(evararray& args) const;
 public:
  efuncBase* func;
  evararray  defargs;
  
  ebasicarray<const type_info*> fArgs;
  const type_info *       fReturn;

  efunc();
  template <class F>
  efunc(F pfunc,const evararray& args=evararray());

  efunc(const evar& obj,eclassMethodBase *pmethod,const evararray& args=evararray());
  efunc(evar& obj,eclassMethodBase *pmethod,const evararray& args=evararray());

  template <class T,class M>
  efunc(T& obj,M pmethod,const evararray& args=evararray());



  efunc(const efunc& func);
  ~efunc();

  void clear();

  const type_info& getTypeid() const; 
  inline bool isSet(){ return(func); }

  template <class F>
  efunc& operator=(F pfunc);
 
  efunc& operator=(const efunc& func);
  bool operator==(const efunc& func) const;

  efunc& setFunc(efuncBase* func);

//  evar call(const estr& args="") const;
  evar call() const;
  evar call(evararray& args) const;
  evar call(const evararray& args) const;
  evar call2(const evararray& args) const;
  void call(evar& rval,const evararray& args) const;

  template <class R,class A1>
  R call(A1 a1) const;

  evar operator()() const;
  
  evar operator()(const evararray& args) const;
  evar operator()(evararray& args) const;

  template <class A1>
  evar operator()(A1 a1) const;
  template <class A1,class A2>
  evar operator()(A1 a1,A2 a2) const;
  template <class A1,class A2,class A3>
  evar operator()(A1 a1,A2 a2,A3 a3) const;
  template <class A1,class A2,class A3,class A4>
  evar operator()(A1 a1,A2 a2,A3 a3,A4 a4) const;
  template <class A1,class A2,class A3,class A4,class A5>
  evar operator()(A1 a1,A2 a2,A3 a3,A4 a4,A5 a5) const;

  void json_serial(estr& data) const;
  void serial(estr& data) const;
  size_t unserial(const estr& data,size_t i);
  void serial(const efile& f) const;
  bool unserial(const efile& f);
};

ostream& operator<<(ostream& stream,const efunc& func);


#endif