backporting Struct#to_h from ruby 2.0

activesupport/lib/active_support/core_ext/struct.rb

@@ -0,0 +1,6 @@
+#  Backport of Struct#to_h from Ruby 2.0
+class Struct # :nodoc:
+  def to_h
+    Hash[members.zip(values)]
+  end
+end unless Struct.instance_methods.include?(:to_h)

activesupport/test/core_ext/struct_test.rb

@@ -0,0 +1,10 @@
+require 'abstract_unit'
+require 'active_support/core_ext/struct'
+
+class StructExt < ActiveSupport::TestCase
+  def test_to_h
+    x = Struct.new(:foo, :bar)
+    z = x.new(1, 2)
+    assert_equal({ foo: 1, bar: 2 }, z.to_h)
+  end
+end