1 files changed, 16 insertions, 2 deletions
diff --git a/src/nvim/api/private/helpers.c b/src/nvim/api/private/helpers.c
index e0d5862e02..84517c99fc 100644
--- a/src/nvim/api/private/helpers.c
+++ b/src/nvim/api/private/helpers.c
@@ -1619,14 +1619,28 @@ free_exit:
   return virt_text;
 }
 
-bool api_is_truthy(Object obj, const char *what, Error *err)
+bool api_is_truthy(Object obj, const char *what, bool nil_truthy, Error *err)
 {
   if (obj.type == kObjectTypeBoolean) {
     return obj.data.boolean;
   } else if (obj.type == kObjectTypeInteger) {
-    return obj.data.integer;  // C semantics: non-zery int is true
+    return obj.data.integer;  // C semantics: non-zero int is true
+  } else if (obj.type == kObjectTypeNil) {
+    return nil_truthy;  // caller decides what NIL (missing retval in lua) means
   } else {
     api_set_error(err, kErrorTypeValidation, "%s is not an boolean", what);
     return false;
   }
 }
+
+const char *describe_ns(NS ns_id)
+{
+  String name;
+  handle_T id;
+  map_foreach(namespace_ids, name, id, {
+    if ((NS)id == ns_id && name.size) {
+      return name.data;
+    }
+  })
+  return "(UNKNOWN PLUGIN)";
+}