From 64af1acc2467c381d9c2835c49f6bf6bfd163644 Mon Sep 17 00:00:00 2001
From: Safia Abdalla <safia@safia.rocks>
Date: Thu, 1 Apr 2021 13:26:46 -0700
Subject: [PATCH] Update assembly check on
 EventHandlerTagHelperDescriptorProvider

---
 .../src/EventHandlerTagHelperDescriptorProvider.cs          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Razor/Microsoft.CodeAnalysis.Razor/src/EventHandlerTagHelperDescriptorProvider.cs b/src/Razor/Microsoft.CodeAnalysis.Razor/src/EventHandlerTagHelperDescriptorProvider.cs
index 9c83533509ff..bf10d62238fa 100644
--- a/src/Razor/Microsoft.CodeAnalysis.Razor/src/EventHandlerTagHelperDescriptorProvider.cs
+++ b/src/Razor/Microsoft.CodeAnalysis.Razor/src/EventHandlerTagHelperDescriptorProvider.cs
@@ -34,6 +34,12 @@ public void Execute(TagHelperDescriptorProviderContext context)
                 return;
             }
 
+            var targetAssembly = context.Items.GetTargetAssembly();
+            if (targetAssembly is not null && !SymbolEqualityComparer.Default.Equals(targetAssembly, eventHandlerAttribute.ContainingAssembly))
+            {
+                return;
+            }
+
             var eventHandlerData = GetEventHandlerData(context, compilation, eventHandlerAttribute);
 
             foreach (var tagHelper in CreateEventHandlerTagHelpers(eventHandlerData))