From 5114f2f1a25a712112b4e23e2dae99dfa9b91dac Mon Sep 17 00:00:00 2001
From: Pranav K <prkrishn@hotmail.com>
Date: Mon, 23 Sep 2019 09:42:48 -0700
Subject: [PATCH] Add null check for DotNetObjectReference
 (dotnet/extensions#2372)

\n\nCommit migrated from https://github.com/dotnet/extensions/commit/45776ac25c750bc98522f7d8bdbba61bcc7540d4
---
 .../Microsoft.JSInterop/src/DotNetObjectReference.cs       | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/JSInterop/Microsoft.JSInterop/src/DotNetObjectReference.cs b/src/JSInterop/Microsoft.JSInterop/src/DotNetObjectReference.cs
index 989d8062bb..53217936d6 100644
--- a/src/JSInterop/Microsoft.JSInterop/src/DotNetObjectReference.cs
+++ b/src/JSInterop/Microsoft.JSInterop/src/DotNetObjectReference.cs
@@ -1,6 +1,8 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
+
 namespace Microsoft.JSInterop
 {
     /// <summary>
@@ -15,6 +17,11 @@ namespace Microsoft.JSInterop
         /// <returns>An instance of <see cref="DotNetObjectReference{TValue}" />.</returns>
         public static DotNetObjectReference<TValue> Create<TValue>(TValue value) where TValue : class
         {
+            if (value is null)
+            {
+                throw new ArgumentNullException(nameof(value));
+            }
+
             return new DotNetObjectReference<TValue>(value);
         }
     }