diff options
Diffstat (limited to 'activesupport/lib')
-rw-r--r-- | activesupport/lib/active_support/core_ext/hash.rb | 1 | ||||
-rw-r--r-- | activesupport/lib/active_support/core_ext/hash/deep_dup.rb | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash.rb b/activesupport/lib/active_support/core_ext/hash.rb index 501483498d..fd1cda991e 100644 --- a/activesupport/lib/active_support/core_ext/hash.rb +++ b/activesupport/lib/active_support/core_ext/hash.rb @@ -1,5 +1,6 @@ require 'active_support/core_ext/hash/conversions' require 'active_support/core_ext/hash/deep_merge' +require 'active_support/core_ext/hash/deep_dup' require 'active_support/core_ext/hash/diff' require 'active_support/core_ext/hash/except' require 'active_support/core_ext/hash/indifferent_access' diff --git a/activesupport/lib/active_support/core_ext/hash/deep_dup.rb b/activesupport/lib/active_support/core_ext/hash/deep_dup.rb new file mode 100644 index 0000000000..447142605c --- /dev/null +++ b/activesupport/lib/active_support/core_ext/hash/deep_dup.rb @@ -0,0 +1,11 @@ +class Hash + # Returns a deep copy of hash. + def deep_dup + duplicate = self.dup + duplicate.each_pair do |k,v| + tv = duplicate[k] + duplicate[k] = tv.is_a?(Hash) && v.is_a?(Hash) ? tv.deep_dup : v + end + duplicate + end +end |