Fix delegation in ActiveModel::Type.lookup

activemodel/CHANGELOG.md

@@ -1,4 +1,4 @@
-*   Fix delegation in ActiveModel::Type::Registry#lookup
+*   Fix delegation in ActiveModel::Type::Registry#lookup and ActiveModel::Type.lookup
 
     Passing a last positional argument `{}` would be incorrectly considered as keyword argument.
 

activemodel/lib/active_model/type.rb

@@ -30,8 +30,8 @@ def register(type_name, klass = nil, &block)
         registry.register(type_name, klass, &block)
       end
 
-      def lookup(*args, **kwargs) # :nodoc:
-        registry.lookup(*args, **kwargs)
+      def lookup(...) # :nodoc:
+        registry.lookup(...)
       end
 
       def default_value # :nodoc:

activemodel/test/cases/type_test.rb

@@ -18,6 +18,7 @@ class TypeTest < ActiveModel::TestCase
       ActiveModel::Type.register(:foo, type)
 
       assert_equal type.new(:arg), ActiveModel::Type.lookup(:foo, :arg)
+      assert_equal type.new({}), ActiveModel::Type.lookup(:foo, {})
     end
   end
 end