Merge pull request #636 from stripe/brandur-initialize-instance-var

Initialize instance variable on the getter too
stripe · Apr 5, 2018 · 676670c · 676670c
2 parents 2f322ca + 776d45f
commit 676670c
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/stripe/stripe_object.rb b/lib/stripe/stripe_object.rb
@@ -64,7 +64,8 @@ def self.additive_object_param(name)
     # Returns whether the given name is an additive object parameter. See
     # `.additive_object_param` for details.
     def self.additive_object_param?(name)
-      !@additive_params.nil? && @additive_params.include?(name)
+      @additive_params ||= Set.new
+      @additive_params.include?(name)
     end
 
     def initialize(id = nil, opts = {})