From 8cc8a9f94de9640a7e9cf126deb5dcfa2339e146 Mon Sep 17 00:00:00 2001
From: Sergio Pedri <sergio0694@live.com>
Date: Sat, 18 Apr 2020 17:22:48 +0200
Subject: [PATCH] Minor codegen improvement

---
 .../DictionarySlim{TKey,TValue}.cs                    | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Microsoft.Toolkit.Mvvm/Messaging/Microsoft.Collections.Extensions/DictionarySlim{TKey,TValue}.cs b/Microsoft.Toolkit.Mvvm/Messaging/Microsoft.Collections.Extensions/DictionarySlim{TKey,TValue}.cs
index 7597d309..a65bf440 100644
--- a/Microsoft.Toolkit.Mvvm/Messaging/Microsoft.Collections.Extensions/DictionarySlim{TKey,TValue}.cs
+++ b/Microsoft.Toolkit.Mvvm/Messaging/Microsoft.Collections.Extensions/DictionarySlim{TKey,TValue}.cs
@@ -243,7 +243,7 @@ namespace Microsoft.Collections.Extensions
 
             if ((uint)newSize > int.MaxValue)
             {
-                throw new InvalidOperationException("Max capacity exceeded");
+                ThrowInvalidOperationExceptionForMaxCapacityExceeded();
             }
 
             var entries = new Entry[newSize];
@@ -328,5 +328,14 @@ namespace Microsoft.Collections.Extensions
         {
             throw new ArgumentException($"The target key {key} was not present in the dictionary");
         }
+
+        /// <summary>
+        /// Throws an <see cref="InvalidOperationException"/> when trying to resize over the maximum capacity.
+        /// </summary>
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        private static void ThrowInvalidOperationExceptionForMaxCapacityExceeded()
+        {
+            throw new InvalidOperationException("Max capacity exceeded");
+        }
     }
 }
\ No newline at end of file