nodejs
diff --git a/Collapse file
‎src/api/callback.cc‎
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+5Lines changed: 5 additions & 0 deletions b/Collapse file
‎src/api/callback.cc‎
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+5Lines changed: 5 additions & 0 deletions
diff --git a/Collapse file
‎src/node_errors.cc‎
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+1Lines changed: 1 addition & 0 deletions b/Collapse file
‎src/node_errors.cc‎
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+1Lines changed: 1 addition & 0 deletions
@@ -139,6 +139,11 @@ MaybeLocal<Value> InternalMakeCallback(Environment* env,
                                        Local<Value> argv[],
                                        async_context asyncContext) {
   CHECK(!recv.IsEmpty());
+#ifdef DEBUG
+  for (int i = 0; i < argc; i++)
+    CHECK(!argv[i].IsEmpty());
+#endif
+
   InternalCallbackScope scope(env, recv, asyncContext);
   if (scope.Failed()) {
     return MaybeLocal<Value>();
 
@@ -710,6 +710,7 @@ void DecorateErrorStack(Environment* env,
 void FatalException(Isolate* isolate,
                     Local<Value> error,
                     Local<Message> message) {
+  CHECK(!error.IsEmpty());
   HandleScope scope(isolate);
 
   Environment* env = Environment::GetCurrent(isolate);