Add `Type.default_value` and use it everywhere for internal

For reduce instantiating `Type::Value`.

1 files changed, 1 insertions, 5 deletions

diff --git a/activerecord/lib/active_record/type/type_map.rb b/activerecord/lib/active_record/type/type_map.rb
index 9618ff8787..7bce82a1ff 100644
--- a/activerecord/lib/active_record/type/type_map.rb
+++ b/activerecord/lib/active_record/type/type_map.rb
@@ -11,7 +11,7 @@ module ActiveRecord
       end
 
       def lookup(lookup_key, *args)
-        fetch(lookup_key, *args) { default_value }
+        fetch(lookup_key, *args) { Type.default_value }
       end
 
       def fetch(lookup_key, *args, &block)
@@ -55,10 +55,6 @@ module ActiveRecord
             yield lookup_key, *args
           end
         end
-
-        def default_value
-          @default_value ||= ActiveModel::Type::Value.new
-        end
     end
   end
 end