From af28ba6afc606fcc70c6f06068894da60ad8bf35 Mon Sep 17 00:00:00 2001
From: Cyrus Najmabadi <cyrus.najmabadi@gmail.com>
Date: Mon, 11 May 2020 15:02:16 -0700
Subject: [PATCH] Use assert

---
 src/Workspaces/Core/Portable/Options/SerializableOptionSet.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Workspaces/Core/Portable/Options/SerializableOptionSet.cs b/src/Workspaces/Core/Portable/Options/SerializableOptionSet.cs
index 53ea1b59612..a53c7f486f7 100644
--- a/src/Workspaces/Core/Portable/Options/SerializableOptionSet.cs
+++ b/src/Workspaces/Core/Portable/Options/SerializableOptionSet.cs
@@ -254,7 +254,8 @@ public void Serialize(ObjectWriter writer, CancellationToken cancellationToken)
                 }
                 else if (kind == OptionValueKind.CodeStyleOption || kind == OptionValueKind.NamingStylePreferences)
                 {
-                    ((IObjectWritable)value!).WriteTo(writer);
+                    RoslynDebug.Assert(value != null);
+                    ((IObjectWritable)value).WriteTo(writer);
                 }
                 else
                 {
-- 
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