libs/EDoc/TypeLoc.cpp

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/*******************************************************************************

   Copyright (C) 2007 by Brendon Costa

   This library is free software; you can redistribute it and/or modify 
   it under the terms of the "LGPL Like" License defined in the file COPYING 
   that should have been distributed along with this source.

   This library 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.  

   You should have received a copy of the "LGPL Like" License 
   along with this library; see the file COPYING. if not, it can be 
   obtained from the EDoc++ website: 
   http://edoc.sourceforge.net/license.html

*******************************************************************************/
#include "config.h"

#include "EDoc/TypeLoc.h"
#include "EDoc/Type.h"
#include "EDoc/Dictionary.h"
#include "EDoc/PStack.h"
#include "EDoc/StackRef.h"

#include "EDoc/PersistenceIFace.h"
#include "IndexedDictionary.h"
#include "EDoc/persistence_data.h"

namespace EDoc
{
   //===========================================================================
   TypeLoc::TypeLoc(Dictionary* dict_in) :
      DictionarySpecific(dict_in),
      loc(dict_in),
      value(NULL)
   {
   }
   //===========================================================================
   TypeLoc::TypeLoc(const TypeLoc& right) :
      DictionarySpecific(&right.dict),
      loc(right.loc),
      value(right.value)
   {
   }
   //===========================================================================
   TypeLoc::TypeLoc(const TypeLoc& right, Dictionary& dict_in) :
      DictionarySpecific(&dict_in),
      loc(right.loc, dict_in),
      value(NULL)
   {
      if (right.value)
      {
         value = dict.types.AlwaysGet(*right.value);
      }
   }
   //===========================================================================
   TypeLoc& TypeLoc::operator=(const TypeLoc& right)
   {
      if (this == &right)
      {
         return *this;
      }
      
      value = NULL;
      if (right.value)
      {
         value = dict.types.AlwaysGet(*right.value);
      }
      
      return *this;
   }
   //===========================================================================
   void TypeLoc::Read(PersistenceIFace& file, IndexedDictionary& idict)
   {
      // Item then location.
      value = idict.types.AlwaysGet(file.ReadUInt32(KEY_TYPE));
      
      loc.Read(file, idict);
   }
   //===========================================================================
   void TypeLoc::Write(PersistenceIFace& file) const
   {
      // Item then location.
      file.WriteUInt32Debug(KEY_TYPE, 
         value->GetIndex(), value->GetDeclaredName());
      
      loc.Write(file);
   }
   //===========================================================================
   bool TypeLoc::operator==(const TypeLoc& right) const
   {
      return (loc == right.loc) && 
         (value->GetNormalisedName() == right.value->GetNormalisedName());
   }
   //===========================================================================
   //@@@Brendon Possibly use special C++ type conversion functions.
   #define EDOC_REPLACE(DataType, Data, From, To, Count) \
      if ((void*)Data == From) {Data = (DataType*)To; Count++;}
   //===========================================================================
   size_t TypeLoc::ReplaceReferences(PStack& stack, void* remove, 
      void* replace)
   {
      size_t count = 0;
      if (!stack.Push(this))
      {
         return count;
      }

      // Dont replace recursivly. Only replace inside us.
      EDOC_REPLACE(Type, value, remove, replace, count);

      count += loc.ReplaceReferences(stack, remove, replace);
      
      return count;
   }
   //===========================================================================
   void TypeLoc::Validate(PStack& stack, const Dictionary& dict_in) const
   {
      StackRef ref(stack, this);
      if (!ref)
      {
         return;
      }
      
      EDOC_ASSERT(&dict == &dict_in, "");
      
      loc.Validate(stack, dict_in);
      value->Validate(stack, dict_in);
   }
   //===========================================================================
   std::ostream& TypeLoc::Print(std::ostream& out, std::string prefix) const
   {
      // Print the location first
      loc.Print(out, prefix);
      
      // Then the types key.
      out << prefix << "Type: " << value->GetKeyName() << std::endl;
      return out;
   }
   //===========================================================================
}

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