diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/hash/keys.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/hash/keys.rb | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb index 8657f34be2..f4105f66b0 100644 --- a/activesupport/lib/active_support/core_ext/hash/keys.rb +++ b/activesupport/lib/active_support/core_ext/hash/keys.rb @@ -6,7 +6,8 @@ class Hash # hash.transform_keys{ |key| key.to_s.upcase } # # => {"NAME"=>"Rob", "AGE"=>"28"} def transform_keys - result = {} + return enum_for(:transform_keys) unless block_given? + result = self.class.new each_key do |key| result[yield(key)] = self[key] end @@ -16,6 +17,7 @@ class Hash # Destructively convert all keys using the block operations. # Same as transform_keys but modifies +self+. def transform_keys! + return enum_for(:transform_keys!) unless block_given? keys.each do |key| self[yield(key)] = delete(key) end |