Method Decode

libraries/lib-project-file-io/ProjectSerializer.cpp:523–742

See ProjectFileIO::LoadProject() for explanation of the blockids arg

// See ProjectFileIO::LoadProject() for explanation of the blockids arg
bool ProjectSerializer::Decode(BufferedStreamReader& in, XMLTagHandler* handler)
{
   if (handler == nullptr)
      return false;

   XMLTagHandlerAdapter adapter(handler);

   std::vector<char> bytes;
   IdMap mIds;
   std::vector<IdMap> mIdStack;
   char mCharSize = 0;

   mIds.clear();

   struct Error{}; // exception type for short-range try/catch
   auto Lookup = [&mIds]( UShort id ) -> std::string_view
   {
      auto iter = mIds.find( id );
      if (iter == mIds.end())
      {
         throw Error{};
      }

      return iter->second;
   };

   int64_t stringsCount = 0;
   int64_t stringsLength = 0;

   auto ReadString = [&mCharSize, &in, &bytes, &stringsCount, &stringsLength](int len) -> std::string
   {
      bytes.resize( len );
      auto data = bytes.data();
      in.Read( data, len );

      stringsCount++;
      stringsLength += len;
      
      switch (mCharSize)
      {
         case 1:
            return std::string(bytes.data(), len);

         case 2:
            return FastStringConvert<char16_t>(bytes.data(), len);

         case 4:
            return FastStringConvert<char32_t>(bytes.data(), len);

         default:
            wxASSERT_MSG(false, wxT("Characters size not 1, 2, or 4"));
         break;
      }

      return {};
   };

   try