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-rw-r--r--activesupport/lib/active_support/core_ext/array.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/deep_dup.rb6
-rw-r--r--activesupport/lib/active_support/core_ext/hash/deep_dup.rb6
-rw-r--r--activesupport/lib/active_support/core_ext/object.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/deep_dup.rb6
5 files changed, 16 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/core_ext/array.rb b/activesupport/lib/active_support/core_ext/array.rb
index 79ba79192a..d6e1398a27 100644
--- a/activesupport/lib/active_support/core_ext/array.rb
+++ b/activesupport/lib/active_support/core_ext/array.rb
@@ -1,6 +1,7 @@
require 'active_support/core_ext/array/wrap'
require 'active_support/core_ext/array/access'
require 'active_support/core_ext/array/uniq_by'
+require 'active_support/core_ext/array/deep_dup'
require 'active_support/core_ext/array/conversions'
require 'active_support/core_ext/array/extract_options'
require 'active_support/core_ext/array/grouping'
diff --git a/activesupport/lib/active_support/core_ext/array/deep_dup.rb b/activesupport/lib/active_support/core_ext/array/deep_dup.rb
new file mode 100644
index 0000000000..82f9805236
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/array/deep_dup.rb
@@ -0,0 +1,6 @@
+class Array
+ # Returns a deep copy of array.
+ def deep_dup
+ map { |it| it.deep_dup }
+ end
+end
diff --git a/activesupport/lib/active_support/core_ext/hash/deep_dup.rb b/activesupport/lib/active_support/core_ext/hash/deep_dup.rb
index 9ab179c566..882f27623e 100644
--- a/activesupport/lib/active_support/core_ext/hash/deep_dup.rb
+++ b/activesupport/lib/active_support/core_ext/hash/deep_dup.rb
@@ -1,10 +1,8 @@
class Hash
# Returns a deep copy of hash.
def deep_dup
- duplicate = self.dup
- duplicate.each_pair do |k,v|
- duplicate[k] = v.is_a?(Hash) ? v.deep_dup : v
+ each_with_object(dup) do |(key, value), hash|
+ hash[key.deep_dup] = value.deep_dup
end
- duplicate
end
end
diff --git a/activesupport/lib/active_support/core_ext/object.rb b/activesupport/lib/active_support/core_ext/object.rb
index 9ad1e12699..ec2157221f 100644
--- a/activesupport/lib/active_support/core_ext/object.rb
+++ b/activesupport/lib/active_support/core_ext/object.rb
@@ -1,6 +1,7 @@
require 'active_support/core_ext/object/acts_like'
require 'active_support/core_ext/object/blank'
require 'active_support/core_ext/object/duplicable'
+require 'active_support/core_ext/object/deep_dup'
require 'active_support/core_ext/object/try'
require 'active_support/core_ext/object/inclusion'
diff --git a/activesupport/lib/active_support/core_ext/object/deep_dup.rb b/activesupport/lib/active_support/core_ext/object/deep_dup.rb
new file mode 100644
index 0000000000..daae98dde1
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/object/deep_dup.rb
@@ -0,0 +1,6 @@
+class Object
+ # Returns a deep copy of object if it's duplicable.
+ def deep_dup
+ duplicable? ? dup : self
+ end
+end