3 files changed, 37 insertions, 0 deletions
diff --git a/lib/psych/deprecated.rb b/lib/psych/deprecated.rb
index 1d401d9..f4034e3 100644
--- a/lib/psych/deprecated.rb
+++ b/lib/psych/deprecated.rb
@@ -56,6 +56,23 @@ module Psych
     return thing unless String === thing
     "tag:yaml.org,2002:#{thing}"
   end
+
+  def self.read_type_class type, reference
+    warn "#{caller[0]}: read_type_class is deprecated" if $VERBOSE
+    _, _, type, name = type.split ':', 4
+
+    reference = name.split('::').inject(reference) do |k,n|
+      k.const_get(n.to_sym)
+    end if name
+    [type, reference]
+  end
+
+  def self.object_maker klass, hash
+    warn "#{caller[0]}: object_maker is deprecated" if $VERBOSE
+    klass.allocate.tap do |obj|
+      hash.each { |k,v| obj.instance_variable_set(:"@#{k}", v) }
+    end
+  end
 end
 
 class Object
diff --git a/test/psych/test_deprecated.rb b/test/psych/test_deprecated.rb
index 6db7238..a272db2 100644
--- a/test/psych/test_deprecated.rb
+++ b/test/psych/test_deprecated.rb
@@ -187,5 +187,24 @@ module Psych
       assert_equal Psych, Psych.tagurize(Psych)
       assert_equal 'tag:yaml.org,2002:foo', Psych.tagurize('foo')
     end
+
+    def test_read_type_class
+      things = Psych.read_type_class 'tag:yaml.org,2002:int:Psych::TestDeprecated::QuickEmitter', Object
+      assert_equal 'int', things.first
+      assert_equal Psych::TestDeprecated::QuickEmitter, things.last
+    end
+
+    def test_read_type_class_no_class
+      things = Psych.read_type_class 'tag:yaml.org,2002:int', Object
+      assert_equal 'int', things.first
+      assert_equal Object, things.last
+    end
+
+    def test_object_maker
+      thing = Psych.object_maker(Object, { 'a' => 'b', 'c' => 'd' })
+      assert_instance_of(Object, thing)
+      assert_equal 'b', thing.instance_variable_get(:@a)
+      assert_equal 'd', thing.instance_variable_get(:@c)
+    end
   end
 end
diff --git a/test/psych/visitors/test_yaml_tree.rb b/test/psych/visitors/test_yaml_tree.rb
index 292710b..758cfae 100644
--- a/test/psych/visitors/test_yaml_tree.rb
+++ b/test/psych/visitors/test_yaml_tree.rb
@@ -23,6 +23,7 @@ module Psych
       def test_struct_const
         foo = Struct.new("Foo", :bar)
         assert_cycle foo.new('bar')
+        Struct.instance_eval { remove_const(:Foo) }
       end
 
       A = Struct.new(:foo)