Folding does not work

[michalss]

Hi,

Folding for c# does not work at all. It does work only for XML.

Thx mike

[michalss]

never mind if someone needs it here its works like charm

 public class CSharpFoldingStrategy
 {
     public void UpdateFoldings(FoldingManager manager, TextDocument document)
     {
         var foldings = CreateNewFoldings(document, out var firstErrorOffset);
         manager.UpdateFoldings(foldings, firstErrorOffset);
     }

     public IEnumerable<NewFolding> CreateNewFoldings(TextDocument document, out int firstErrorOffset)
     {
         firstErrorOffset = -1;
         var newFoldings = new List<NewFolding>();
         var startOffsets = new Stack<int>();

         for (int offset = 0; offset < document.TextLength; offset++)
         {
             char c = document.GetCharAt(offset);
             switch (c)
             {
                 case '{':
                     startOffsets.Push(offset);
                     break;
                 case '}':
                     if (startOffsets.Count > 0)
                     {
                         int startOffset = startOffsets.Pop();
                         // Add a folding if the block spans more than one line
                         int startLine = document.GetLineByOffset(startOffset).LineNumber;
                         int endLine = document.GetLineByOffset(offset).LineNumber;
                         if (startLine < endLine)
                         {
                             newFoldings.Add(new NewFolding(startOffset, offset + 1));
                         }
                     }
                     break;
             }
         }

         newFoldings.Sort((a, b) => a.StartOffset.CompareTo(b.StartOffset));
         return newFoldings;
     }
 }

[antoniovalentini]

Hey @michalss, thanks for this snippet. Apparently, this can be used with JSON files too. The logic seems to be based mostly on curly brackets, right?