merge revision(s) 44628: [Backport ruby#9413]

	* eval.c (rb_mod_s_constants): return its own constants for other
	  than Module itself.  [ruby-core:59763] [Bug ruby#9413]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@44939 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: unak

ChangeLog

@@ -1,3 +1,8 @@
+Fri Feb 14 14:58:19 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval.c (rb_mod_s_constants): return its own constants for other
+	  than Module itself.  [ruby-core:59763] [Bug #9413]
+
 Fri Feb 14 14:40:27 2014  Masaki Matsushita  <glass.saga@gmail.com>
 
 	* array.c (rb_hash_rehash): use hash_alloc() instead of rb_hash_new().

eval.c

@@ -313,8 +313,8 @@ rb_mod_s_constants(int argc, VALUE *argv, VALUE mod)
     VALUE cbase = 0;
     void *data = 0;
 
-    if (argc > 0) {
-	return rb_mod_constants(argc, argv, rb_cModule);
+    if (argc > 0 || mod != rb_cModule) {
+	return rb_mod_constants(argc, argv, mod);
     }
 
     while (cref) {

test/ruby/test_module.rb

@@ -669,6 +669,19 @@ def test_mod_constants
     m.instance_eval { remove_const(:Foo) }
   end
 
+  class Bug9413
+    class << self
+      Foo = :foo
+    end
+  end
+
+  def test_singleton_constants
+    bug9413 = '[ruby-core:59763] [Bug #9413]'
+    c = Bug9413.singleton_class
+    assert_include(c.constants(true), :Foo, bug9413)
+    assert_include(c.constants(false), :Foo, bug9413)
+  end
+
   def test_frozen_class
     m = Module.new
     m.freeze

version.h

@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.3"
-#define RUBY_PATCHLEVEL 520
+#define RUBY_PATCHLEVEL 521
 
 #define RUBY_RELEASE_DATE "2014-02-14"
 #define RUBY_RELEASE_YEAR 2014