nodes.rb in graphql-2.0.21

- old
+ new

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 module GraphQL
   module Language
     module Nodes
-      NONE = [].freeze
+      NONE = GraphQL::EmptyObjects::EMPTY_ARRAY
       # {AbstractNode} is the base class for all nodes in a GraphQL AST.
       #
       # It provides some APIs for working with ASTs:
       # - `children` returns all AST nodes attached to this one. Used for tree traversal.
       # - `scalars` returns all scalar (Ruby) values attached to this one. Used for comparing nodes.
@@ -49,10 +49,10 @@
           other.kind_of?(self.class) &&
             other.scalars == self.scalars &&
             other.children == self.children
         end
 
-        NO_CHILDREN = [].freeze
+        NO_CHILDREN = GraphQL::EmptyObjects::EMPTY_ARRAY
 
         # @return [Array<GraphQL::Language::Nodes::AbstractNode>] all nodes in the tree below this one
         def children
           NO_CHILDREN
         end