From bfe3cd01bc6b51d4d0882969ddb1133cf85c68ec Mon Sep 17 00:00:00 2001
From: Paige Sun <paigesun@fb.com>
Date: Thu, 25 Mar 2021 16:07:04 -0700
Subject: [PATCH] Log info when TurboModule cannot be found

Summary:
There are a surprisingly large number of nil modules in both bridge and bridgeless. So far, features may silently fail if a module is nil.

We can't log with with console.error or console.warn because many tests will break even though modules aren't used in the test.

Differential Revision: D27285601

fbshipit-source-id: 1467100f2a4c48e97de5dd6e846c26981c14f099
---
 Libraries/TurboModule/TurboModuleRegistry.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Libraries/TurboModule/TurboModuleRegistry.js b/Libraries/TurboModule/TurboModuleRegistry.js
index 105089391ce..c69f0f032ab 100644
--- a/Libraries/TurboModule/TurboModuleRegistry.js
+++ b/Libraries/TurboModule/TurboModuleRegistry.js
@@ -26,6 +26,10 @@ function requireModule<T: TurboModule>(name: string): ?T {
 
   if (turboModuleProxy != null) {
     const module: ?T = turboModuleProxy(name);
+    if (module == null) {
+      // Common fixes: Verify the TurboModule is registered in the native binary, and adopts the code generated type-safe Spec base class.
+      console.info('Unable to get iOS TurboModule for ' + name + '.');
+    }
     return module;
   }