From 94925d5eb7937f4cf63b6dc6cd9830f9a62fc3b2 Mon Sep 17 00:00:00 2001
From: Kevin Gozali <fkg@fb.com>
Date: Wed, 6 Feb 2019 15:58:48 -0800
Subject: [PATCH] TM iOS: Verify that module class conforms to RCTTurboModule
 before instantiating

Summary: At times, the lookup logic may find a class that's not compliant with RCTTurboModule. If so, it shouldn't be instantiated, and we assume the module doesn't exist.

Reviewed By: JoshuaGross, RSNara

Differential Revision: D13979004

fbshipit-source-id: ac1fa9cc456715cddd101fff13f5a41f9528a74e
---
 .../turbomodule/core/platform/ios/RCTTurboModuleManager.mm      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ReactCommon/turbomodule/core/platform/ios/RCTTurboModuleManager.mm b/ReactCommon/turbomodule/core/platform/ios/RCTTurboModuleManager.mm
index a44146ab4e0..a5fefa050c7 100644
--- a/ReactCommon/turbomodule/core/platform/ios/RCTTurboModuleManager.mm
+++ b/ReactCommon/turbomodule/core/platform/ios/RCTTurboModuleManager.mm
@@ -176,7 +176,7 @@ static Class getFallbackClassFromName(const char *name) {
     moduleClass = getFallbackClassFromName(moduleName);
   }
 
-  if (!moduleClass) {
+  if (![moduleClass conformsToProtocol:@protocol(RCTTurboModule)]) {
     return nil;
   }