From ff3df626ddf0daad2cf615a1befd22a3d954f80d Mon Sep 17 00:00:00 2001
From: Tarek Mahmoud Sayed <tarekms@microsoft.com>
Date: Thu, 12 Oct 2023 10:12:25 -0700
Subject: [PATCH] Optimize Options Source Gen when no need to run

---
 src/libraries/Microsoft.Extensions.Options/gen/Generator.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libraries/Microsoft.Extensions.Options/gen/Generator.cs b/src/libraries/Microsoft.Extensions.Options/gen/Generator.cs
index e9c1f55fcca512..02fb554ca0b487 100644
--- a/src/libraries/Microsoft.Extensions.Options/gen/Generator.cs
+++ b/src/libraries/Microsoft.Extensions.Options/gen/Generator.cs
@@ -32,6 +32,11 @@ public void Initialize(IncrementalGeneratorInitializationContext context)
 
         private static void HandleAnnotatedTypes(Compilation compilation, ImmutableArray<(TypeDeclarationSyntax? TypeSyntax, SemanticModel SemanticModel)> types, SourceProductionContext context)
         {
+            if (types.Length == 0)
+            {
+                return;
+            }
+
             if (!SymbolLoader.TryLoad(compilation, out var symbolHolder))
             {
                 // Not eligible compilation