Imported Upstream version 5.4.0.167

Former-commit-id: 5624ac747d633e885131e8349322922b6a59baaa

external/api-doc-tools/monodoc/Monodoc/storage/NullStorage.cs

@@ -0,0 +1,63 @@
+using System;
+using System.IO;
+using System.Xml;
+using System.Linq;
+using System.Collections.Generic;
+
+namespace Monodoc.Storage
+{
+	// A storage that doesn't store
+	public class NullStorage : IDocStorage
+	{
+		public NullStorage ()
+		{
+		}
+
+		public bool SupportRevision {
+			get {
+				return false;
+			}
+		}
+
+		public IDocRevisionManager RevisionManager {
+			get {
+				return null;
+			}
+		}
+
+		public bool SupportChange {
+			get {
+				return true;
+			}
+		}
+
+		public string Store (string id, string text)
+		{
+			return id;
+		}
+
+		public string Store (string id, byte[] data)
+		{
+			return id;
+		}
+
+		public string Store (string id, Stream stream)
+		{
+			return id;
+		}
+
+		public Stream Retrieve (string id)
+		{
+			return null;
+		}
+
+		public IEnumerable<string> GetAvailableIds ()
+		{
+			return Enumerable.Empty<string> (); 
+		}
+
+		public void Dispose ()
+		{
+		}
+	}
+}