From 9eac24b330cce8b72a7c68be73bd2e35e03c5e49 Mon Sep 17 00:00:00 2001
From: Daniil Sokolyuk <d.sokolyuk@rambler-co.ru>
Date: Sun, 8 Apr 2018 19:00:19 +0300
Subject: [PATCH 1/2] component name valid cache

---
 src/React.Core/ReactComponent.cs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/React.Core/ReactComponent.cs b/src/React.Core/ReactComponent.cs
index 012100403..c9080a6ce 100644
--- a/src/React.Core/ReactComponent.cs
+++ b/src/React.Core/ReactComponent.cs
@@ -8,6 +8,7 @@
  */
 
 using System;
+using System.Collections.Concurrent;
 using System.Linq;
 using System.Text.RegularExpressions;
 using JavaScriptEngineSwitcher.Core;
@@ -21,6 +22,8 @@ namespace React
 	/// </summary>
 	public class ReactComponent : IReactComponent
 	{
+		private static readonly ConcurrentDictionary<string, bool> _componentNameValidCache = new ConcurrentDictionary<string, bool>();
+
 		/// <summary>
 		/// Regular expression used to validate JavaScript identifiers. Used to ensure component
 		/// names are valid.
@@ -220,13 +223,10 @@ protected virtual string GetComponentInitialiser()
 		/// <param name="componentName"></param>
 		internal static void EnsureComponentNameValid(string componentName)
 		{
-			var isValid = componentName.Split('.').All(segment => _identifierRegex.IsMatch(segment));
+			var isValid = _componentNameValidCache.GetOrAdd(componentName, compName => compName.Split('.').All(segment => _identifierRegex.IsMatch(segment)));
 			if (!isValid)
 			{
-				throw new ReactInvalidComponentException(string.Format(
-					"Invalid component name '{0}'",
-					componentName
-				));
+				throw new ReactInvalidComponentException($"Invalid component name '{componentName}'");
 			}
 		}
 

From 249a8bdfd9ad9f4a5476eb0530f2d52e0a68fe07 Mon Sep 17 00:00:00 2001
From: Daniil Sokolyuk <d.sokolyuk@rambler-co.ru>
Date: Sun, 8 Apr 2018 19:46:38 +0300
Subject: [PATCH 2/2] ordinal comparer for better performance

---
 src/React.Core/ReactComponent.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/React.Core/ReactComponent.cs b/src/React.Core/ReactComponent.cs
index c9080a6ce..481485b15 100644
--- a/src/React.Core/ReactComponent.cs
+++ b/src/React.Core/ReactComponent.cs
@@ -22,7 +22,7 @@ namespace React
 	/// </summary>
 	public class ReactComponent : IReactComponent
 	{
-		private static readonly ConcurrentDictionary<string, bool> _componentNameValidCache = new ConcurrentDictionary<string, bool>();
+		private static readonly ConcurrentDictionary<string, bool> _componentNameValidCache = new ConcurrentDictionary<string, bool>(StringComparer.Ordinal);
 
 		/// <summary>
 		/// Regular expression used to validate JavaScript identifiers. Used to ensure component