// @(#)root/meta:$Name:  $:$Id: TBaseClass.cxx,v 1.8 2002/08/09 19:26:26 brun Exp $
// Author: Fons Rademakers   08/02/95

/*************************************************************************
 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/

#include "TBaseClass.h"
#include "TClass.h"
#include "TROOT.h"
#include "TString.h"
#include "Api.h"

//////////////////////////////////////////////////////////////////////////
//                                                                      //
//  Each class (see TClass) has a linked list of its base class(es).    //
//  This class describes one single base class.                         //
//  The base class info is obtained via the CINT api.                   //
//     see class TCint.                                                 //
//                                                                      //
//  The base class information is used a.o. in to find all inherited    //
//  methods.                                                            //
//                                                                      //
//////////////////////////////////////////////////////////////////////////


ClassImp(TBaseClass)

//______________________________________________________________________________
 TBaseClass::TBaseClass(G__BaseClassInfo *info, TClass *cl) : TDictionary()
{
   // Default TBaseClass ctor. TBaseClasses are constructed in TClass
   // via a call to TCint::CreateListOfBaseClasses().

   fInfo     = info;
   fClass    = cl;
   fClassPtr = 0;
   if (fInfo) fName = fInfo->Fullname();
}

//______________________________________________________________________________
 TBaseClass::~TBaseClass()
{
   // TBaseClass dtor deletes adopted G__BaseClassInfo object.

   delete fInfo;
}

//______________________________________________________________________________
 void TBaseClass::Browse(TBrowser *b)
{
   // Called by the browser, to browse a baseclass.

   TClass *c = GetClassPointer();
   if (c) c->Browse(b);
}

//______________________________________________________________________________
 TClass *TBaseClass::GetClassPointer(Bool_t load)
{
   // Get pointer to the base class TClass.

   if (!fClassPtr) fClassPtr = gROOT->GetClass(fName, load);
   return fClassPtr;
}

//______________________________________________________________________________
 Int_t TBaseClass::GetDelta() const
{
   // Get offset from "this" to part of base class.

   return (Int_t)fInfo->Offset();
}

//______________________________________________________________________________
 const char *TBaseClass::GetName() const
{
   // Get base class name.

   return fName;
}

//______________________________________________________________________________
 const char *TBaseClass::GetTitle() const
{
   // Get base class description (comment).

   TClass *c = ((TBaseClass *)this)->GetClassPointer();
   return c ? c->GetTitle() : "";
}

//______________________________________________________________________________
 Int_t TBaseClass::Compare(const TObject *obj) const
{
   // Compare to other object. Returns 0<, 0 or >0 depending on
   // whether "this" is lexicographically less than, equal to, or
   // greater than obj.

   return strcmp(fName, obj->GetName());
}

//______________________________________________________________________________
 ULong_t TBaseClass::Hash() const
{
   // Return hash value for TBaseClass based on its name.

   return fName.Hash();
}

//______________________________________________________________________________
 int TBaseClass::IsSTLContainer()
{
   // Return which type (if any) of STL container the data member is.

   if (!fInfo) return kNone;
   const char *s = fInfo->TmpltName();
   if (!s) return kNone;
   char type[4096];
   strcpy(type, s);

   if (!strcmp(type, "vector"))   return kVector;
   if (!strcmp(type, "list"))     return kList;
   if (!strcmp(type, "deque"))    return kDeque;
   if (!strcmp(type, "map"))      return kMap;
   if (!strcmp(type, "multimap")) return kMultimap;
   if (!strcmp(type, "set"))      return kSet;
   if (!strcmp(type, "multiset")) return kMultiset;
   return kNone;
}

//______________________________________________________________________________
 Long_t TBaseClass::Property() const
{
   // Get property description word. For meaning of bits see EProperty.

   return fInfo->Property();
}