marcandre	2012-10-29 06:19:50 +0900 (Mon, 29 Oct 2012)

  New Revision: 37375

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=37375

  Log:
    * lib/ostruct.rb: Also accept {Open}Struct as argument to new
    [ruby-core:47476] [Feature #7007]

  Modified files:
    trunk/NEWS
    trunk/lib/ostruct.rb
    trunk/test/ostruct/test_ostruct.rb

Index: lib/ostruct.rb
===================================================================
--- lib/ostruct.rb	(revision 37374)
+++ lib/ostruct.rb	(revision 37375)
@@ -74,7 +74,8 @@
   # Creates a new OpenStruct object.  By default, the resulting OpenStruct
   # object will have no attributes.
   #
-  # The optional +hash+, if given, will generate attributes and values.
+  # The optional +hash+, if given, will generate attributes and values
+  # (can be a Hash, an OpenStruct or a Struct).
   # For example:
   #
   #   require 'ostruct'
@@ -86,8 +87,9 @@
   def initialize(hash=nil)
     @table = {}
     if hash
-      for k,v in hash
-        @table[k.to_sym] = v
+      hash.each_pair do |k, v|
+        k = k.to_sym
+        @table[k] = v
         new_ostruct_member(k)
       end
     end
Index: NEWS
===================================================================
--- NEWS	(revision 37374)
+++ NEWS	(revision 37375)
@@ -122,6 +122,8 @@
     * OpenStruct#eql?
     * OpenStruct#hash
     * OpenStruct#to_h converts the struct to a hash.
+  * extended method:
+    * OpenStruct.new also accepts an OpenStruct / Struct.
 
 * pathname
   * extended method:
Index: test/ostruct/test_ostruct.rb
===================================================================
--- test/ostruct/test_ostruct.rb	(revision 37374)
+++ test/ostruct/test_ostruct.rb	(revision 37375)
@@ -2,6 +2,13 @@
 require 'ostruct'
 
 class TC_OpenStruct < Test::Unit::TestCase
+  def test_initialize
+    h = {name: "John Smith", age: 70, pension: 300}
+    assert_equal h, OpenStruct.new(h).to_h
+    assert_equal h, OpenStruct.new(OpenStruct.new(h)).to_h
+    assert_equal h, OpenStruct.new(Struct.new(*h.keys).new(*h.values)).to_h
+  end
+
   def test_equality
     o1 = OpenStruct.new
     o2 = OpenStruct.new

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