From 1cbed83405318aeab89b99d833154a8dcf25eaa1 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Sat, 22 Feb 2020 10:54:01 +0100
Subject: [PATCH] Tweak SelectionModelChangeSet.

- Make field readonly
- Use lambda syntax so C# caches delegates
---
 src/Avalonia.Controls/SelectionModelChangeSet.cs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Avalonia.Controls/SelectionModelChangeSet.cs b/src/Avalonia.Controls/SelectionModelChangeSet.cs
index bff84eca92..6e77dc5755 100644
--- a/src/Avalonia.Controls/SelectionModelChangeSet.cs
+++ b/src/Avalonia.Controls/SelectionModelChangeSet.cs
@@ -7,7 +7,7 @@ namespace Avalonia.Controls
 {
     internal class SelectionModelChangeSet
     {
-        private List<SelectionNodeOperation> _changes;
+        private readonly List<SelectionNodeOperation> _changes;
 
         public SelectionModelChangeSet(List<SelectionNodeOperation> changes)
         {
@@ -63,7 +63,7 @@ namespace Avalonia.Controls
         {
             static int GetCount(SelectionNodeOperation info) => info.DeselectedCount;
             static List<IndexRange>? GetRanges(SelectionNodeOperation info) => info.DeselectedRanges;
-            return GetIndexAt(infos, index, GetCount, GetRanges);
+            return GetIndexAt(infos, index, x => GetCount(x), x => GetRanges(x));
         }
 
         private IndexPath GetSelectedIndexAt(
@@ -72,7 +72,7 @@ namespace Avalonia.Controls
         {
             static int GetCount(SelectionNodeOperation info) => info.SelectedCount;
             static List<IndexRange>? GetRanges(SelectionNodeOperation info) => info.SelectedRanges;
-            return GetIndexAt(infos, index, GetCount, GetRanges);
+            return GetIndexAt(infos, index, x => GetCount(x), x => GetRanges(x));
         }
 
         private object? GetDeselectedItemAt(
@@ -81,7 +81,7 @@ namespace Avalonia.Controls
         {
             static int GetCount(SelectionNodeOperation info) => info.Items != null ? info.DeselectedCount : 0;
             static List<IndexRange>? GetRanges(SelectionNodeOperation info) => info.DeselectedRanges;
-            return GetItemAt(infos, index, GetCount, GetRanges);
+            return GetItemAt(infos, index, x => GetCount(x), x => GetRanges(x));
         }
 
         private object? GetSelectedItemAt(
@@ -90,7 +90,7 @@ namespace Avalonia.Controls
         {
             static int GetCount(SelectionNodeOperation info) => info.Items != null ? info.SelectedCount : 0;
             static List<IndexRange>? GetRanges(SelectionNodeOperation info) => info.SelectedRanges;
-            return GetItemAt(infos, index, GetCount, GetRanges);
+            return GetItemAt(infos, index, x => GetCount(x), x => GetRanges(x));
         }
 
         private IndexPath GetIndexAt(