From 905e5d6ee8d909a7ed4c3518a78a426584a546c3 Mon Sep 17 00:00:00 2001
From: Chris Tchou <ctchou@unity3d.com>
Date: Wed, 25 Aug 2021 15:49:50 -0700
Subject: [PATCH] Check for destroyed assets before trying to access their data

---
 com.unity.shadergraph/Editor/Drawing/SearchWindowProvider.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/com.unity.shadergraph/Editor/Drawing/SearchWindowProvider.cs b/com.unity.shadergraph/Editor/Drawing/SearchWindowProvider.cs
index f0c7bd22d8a..4eb0e969be1 100644
--- a/com.unity.shadergraph/Editor/Drawing/SearchWindowProvider.cs
+++ b/com.unity.shadergraph/Editor/Drawing/SearchWindowProvider.cs
@@ -154,6 +154,9 @@ public void GenerateNodeEntries()
             Profiler.BeginSample("SearchWindowProvider.GenerateNodeEntries.IterateSubgraphAssets");
             foreach (var asset in NodeClassCache.knownSubGraphAssets)
             {
+                if (asset == null)
+                    continue;
+
                 var node = new SubGraphNode { asset = asset };
                 var title = asset.path.Split('/').ToList();