IDisplayView, render statistics

src/Library/TerminalUI/Models/RenderContext.cs

@@ -13,20 +13,30 @@ public readonly ref struct RenderContext
     public readonly bool ForceRerender;
     public readonly IColor? Foreground;
     public readonly IColor? Background;
+    public readonly RenderStatistics Statistics;
 
     public RenderContext(
-        IConsoleDriver consoleDriver, 
-        bool forceRerender, 
-        IColor? foreground, 
-        IColor? background)
+        IConsoleDriver consoleDriver,
+        bool forceRerender,
+        IColor? foreground,
+        IColor? background,
+        RenderStatistics statistics)
     {
         RenderId = _renderId++;
-        
+
         ConsoleDriver = consoleDriver;
         ForceRerender = forceRerender;
         Foreground = foreground;
         Background = background;
+        Statistics = statistics;
     }
-    
-    public static RenderContext Empty => new(null!, false, null, null);
+
+    public static RenderContext Empty =>
+        new(
+            null!,
+            false,
+            null,
+            null,
+            new RenderStatistics()
+        );
 }

src/Library/TerminalUI/Models/RenderStatistics.cs

@@ -0,0 +1,11 @@
+using System.Diagnostics;
+
+namespace TerminalUI.Models;
+
+[DebuggerDisplay("RenderedViews = {RenderedViews}, RenderedDisplayViews = {RenderedDisplayViews}, ProcessedViews = {ProcessedViews}")]
+public class RenderStatistics
+{
+    public ulong RenderedViews { get; set; }
+    public ulong RenderedDisplayViews { get; set; }
+    public ulong ProcessedViews { get; set; }
+}