From 073154d56760a62eace06b75c1c8f196d6c71ae0 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 17 Nov 2015 05:36:03 +0000
Subject: OpenStruct#dig

* lib/ostruct.rb (dig): Implement OpenStruct#dig
  [Feature #11688]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52611 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/ostruct.rb | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'lib/ostruct.rb')

diff --git a/lib/ostruct.rb b/lib/ostruct.rb
index 63146075be..0e13f40692 100644
--- a/lib/ostruct.rb
+++ b/lib/ostruct.rb
@@ -214,6 +214,24 @@ class OpenStruct
     modifiable[new_ostruct_member(name)] = value
   end
 
+  #
+  # Retrieves the value object corresponding to the each +name+
+  # objects repeatedly.
+  #
+  #   address = OpenStruct.new('city' => "Anytown NC", 'zip' => 12345)
+  #   person = OpenStruct.new('name' => 'John Smith', 'address' => address)
+  #   person.dig(:address, 'zip') # => 12345
+  #   person.dig(:business_address, 'zip') # => nil
+  #
+  def dig(name, *names)
+    begin
+      name = name.to_sym
+    rescue NoMethodError
+      return
+    end
+    @table.dig(name, *names)
+  end
+
   #
   # Remove the named field from the object. Returns the value that the field
   # contained if it was defined.
-- 
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