nagachika	2016-06-14 03:33:28 +0900 (Tue, 14 Jun 2016)

  New Revision: 55402

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=55402

  Log:
    merge revision(s) 54970: [Backport #12367]
    
    * insns.def (defineclass): Also raise an error when redeclaring the
      superclass of a class as Object and it has another superclass.
      [Bug #12367] [ruby-core:75446]
    
    * test/ruby/test_class.rb: test for above.

  Modified directories:
    branches/ruby_2_3/
  Modified files:
    branches/ruby_2_3/ChangeLog
    branches/ruby_2_3/insns.def
    branches/ruby_2_3/test/ruby/test_class.rb
    branches/ruby_2_3/version.h
Index: ruby_2_3/ChangeLog
===================================================================
--- ruby_2_3/ChangeLog	(revision 55401)
+++ ruby_2_3/ChangeLog	(revision 55402)
@@ -1,3 +1,11 @@ https://github.com/ruby/ruby/blob/trunk/ruby_2_3/ChangeLog#L1
+Tue Jun 14 03:25:14 2016  Benoit Daloze  <eregontp@g...>
+
+	* insns.def (defineclass): Also raise an error when redeclaring the
+	  superclass of a class as Object and it has another superclass.
+	  [Bug #12367] [ruby-core:75446]
+
+	* test/ruby/test_class.rb: test for above.
+
 Tue Jun 14 03:15:54 2016  Nobuyoshi Nakada  <nobu@r...>
 
 	* process.c (rb_exec_getargs): honor the expected argument types
Index: ruby_2_3/insns.def
===================================================================
--- ruby_2_3/insns.def	(revision 55401)
+++ ruby_2_3/insns.def	(revision 55402)
@@ -863,10 +863,6 @@ defineclass https://github.com/ruby/ruby/blob/trunk/ruby_2_3/insns.def#L863
 		     rb_obj_class(super));
 	}
 
-	if (super == Qnil) {
-	    super = rb_cObject;
-	}
-
 	vm_check_if_namespace(cbase);
 
 	/* find klass */
@@ -879,7 +875,7 @@ defineclass https://github.com/ruby/ruby/blob/trunk/ruby_2_3/insns.def#L875
 		rb_raise(rb_eTypeError, "%"PRIsVALUE" is not a class", rb_id2str(id));
 	    }
 
-	    if (super != rb_cObject) {
+	    if (VM_DEFINECLASS_HAS_SUPERCLASS_P(flags)) {
 		VALUE tmp;
 		tmp = rb_class_real(RCLASS_SUPER(klass));
 
@@ -890,6 +886,9 @@ defineclass https://github.com/ruby/ruby/blob/trunk/ruby_2_3/insns.def#L886
 	    }
 	}
 	else {
+	    if (!VM_DEFINECLASS_HAS_SUPERCLASS_P(flags)) {
+		super = rb_cObject;
+	    }
 	    /* new class declaration */
 	    klass = rb_define_class_id(id, super);
 	    rb_set_class_path_string(klass, cbase, rb_id2str(id));
Index: ruby_2_3/version.h
===================================================================
--- ruby_2_3/version.h	(revision 55401)
+++ ruby_2_3/version.h	(revision 55402)
@@ -1,6 +1,6 @@ https://github.com/ruby/ruby/blob/trunk/ruby_2_3/version.h#L1
 #define RUBY_VERSION "2.3.2"
 #define RUBY_RELEASE_DATE "2016-06-14"
-#define RUBY_PATCHLEVEL 126
+#define RUBY_PATCHLEVEL 127
 
 #define RUBY_RELEASE_YEAR 2016
 #define RUBY_RELEASE_MONTH 6
Index: ruby_2_3/test/ruby/test_class.rb
===================================================================
--- ruby_2_3/test/ruby/test_class.rb	(revision 55401)
+++ ruby_2_3/test/ruby/test_class.rb	(revision 55402)
@@ -375,6 +375,25 @@ class TestClass < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/ruby_2_3/test/ruby/test_class.rb#L375
     }
   end
 
+  define_method :test_invalid_reset_superclass do
+    class A; end
+    class SuperclassCannotBeReset < A
+    end
+    assert_equal A, SuperclassCannotBeReset.superclass
+
+    assert_raise_with_message(TypeError, /superclass mismatch/) {
+      class SuperclassCannotBeReset < String
+      end
+    }
+
+    assert_raise_with_message(TypeError, /superclass mismatch/, "[ruby-core:75446]") {
+      class SuperclassCannotBeReset < Object
+      end
+    }
+
+    assert_equal A, SuperclassCannotBeReset.superclass
+  end
+
   def test_cloned_singleton_method_added
     bug5283 = '[ruby-dev:44477]'
     added = []

Property changes on: ruby_2_3
___________________________________________________________________
Modified: svn:mergeinfo
   Merged /trunk:r54970


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