lib/rack/reducer/refinements.rb in rack-reducer-1.0.1 vs lib/rack/reducer/refinements.rb in rack-reducer-1.1.0

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 module Rack
   module Reducer
     # refine Proc and hash in this scope only
     module Refinements
       refine Proc do
@@ -15,16 +17,26 @@
           keywords = required_argument_names
           params.slice(*keywords).keys.to_set == keywords.to_set
         end
       end
 
-      # backport Hash#slice for older rubies
+      # backport Hash#slice for Ruby < 2.4
       unless {}.respond_to?(:slice)
         refine Hash do
           def slice(*keys)
             [keys, values_at(*keys)].transpose.select { |_k, val| val }.to_h
           end
         end
+      end
+
+      refine Hash do
+        def symbolize_keys
+          each_with_object({}) do |(key, val), hash|
+            hash[key.to_sym] = val.is_a?(Hash) ? symbolize(val) : val
+          end
+        end
+
+        alias_method :to_unsafe_h, :to_h
       end
     end
 
     private_constant :Refinements
   end