Add hash slice using IndifferentAccess.

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/hashie/extensions/indifferent_access.rb b/lib/hashie/extensions/indifferent_access.rb
index f8176f5..ebdb0f9 100644
--- a/lib/hashie/extensions/indifferent_access.rb
+++ b/lib/hashie/extensions/indifferent_access.rb
@@ -23,6 +23,8 @@ module Hashie
     #   h['baz'] # => 'blip'
     #
     module IndifferentAccess
+      include Hashie::Extensions::RubyVersionCheck
+
       def self.included(base)
         Hashie::Extensions::Dash::IndifferentAccess.maybe_extend(base)
 
@@ -141,6 +143,13 @@ module Hashie
         super.convert!
       end
 
+      with_minimum_ruby('2.5.0') do
+        def slice(*keys)
+          string_keys = keys.map { |key| convert_key(key) }
+          super(*string_keys)
+        end
+      end
+
       protected
 
       def hash_lacking_indifference?(other)