public LocationInfo()

in src/log4net/Core/LocationInfo.cs [74:154]
66 lines of code
15 McCabe index (conditional complexity)

  public LocationInfo(Type? callerStackBoundaryDeclaringType)
  {
    // Initialize all fields
    ClassName = NotAvailable;
    FileName = NotAvailable;
    LineNumber = NotAvailable;
    MethodName = NotAvailable;
    FullInfo = NotAvailable;

    if (callerStackBoundaryDeclaringType is not null)
    {
      try
      {
        StackTrace st = new(true);
        int frameIndex = 0;

        // skip frames not from fqnOfCallingClass
        while (frameIndex < st.FrameCount)
        {
          if (st.GetFrame(frameIndex) is StackFrame frame
              && frame.GetMethod()?.DeclaringType == callerStackBoundaryDeclaringType)
          {
            break;
          }
          frameIndex++;
        }

        // skip frames from fqnOfCallingClass
        while (frameIndex < st.FrameCount)
        {
          if (st.GetFrame(frameIndex) is StackFrame frame
              && frame.GetMethod()?.DeclaringType != callerStackBoundaryDeclaringType)
          {
            break;
          }
          frameIndex++;
        }

        if (frameIndex < st.FrameCount)
        {
          // take into account the frames we skip above
          int adjustedFrameCount = st.FrameCount - frameIndex;
          var stackFramesList = new List<StackFrameItem>(adjustedFrameCount);
          StackFrames = new StackFrameItem[adjustedFrameCount];
          for (int i = frameIndex; i < st.FrameCount; i++)
          {
            if (st.GetFrame(i) is StackFrame frame)
            {
              stackFramesList.Add(new StackFrameItem(frame));
            }
          }

          stackFramesList.CopyTo(StackFrames, 0);

          // now frameIndex is the first 'user' caller frame
          if (st.GetFrame(frameIndex) is StackFrame locationFrame)
          {
            if (locationFrame.GetMethod() is System.Reflection.MethodBase method)
            {
              MethodName = method.Name;
              if (method.DeclaringType is not null)
              {
                ClassName = method.DeclaringType.FullName;
              }
            }
            FileName = locationFrame.GetFileName();
            LineNumber = locationFrame.GetFileLineNumber().ToString(System.Globalization.NumberFormatInfo.InvariantInfo);

            // Combine all location info
            FullInfo = $"{ClassName}.{MethodName}({FileName}:{LineNumber})";
          }
        }
      }
      catch (System.Security.SecurityException)
      {
        // This security exception will occur if the caller does not have 
        // some undefined set of SecurityPermission flags.
        LogLog.Debug(_declaringType, "Security exception while trying to get caller stack frame. Error Ignored. Location Information Not Available.");
      }
    }
  }