merges r28043 from trunk into ruby_1_9_2.

--
* insns.def (invokesuper): check consistency between class of self and
  class of method being invoked by super.  This is temporary measure
  for YARV.  See [ruby-core:30313] in detail.  See [ruby-dev:40959]
  [ruby-dev:39772] [ruby-core:27000] [ruby-core:27230]

* vm_insnhelper.c (vm_search_superclass): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28071 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/insns.def b/insns.def
index 79b92d8a4d..23c0143907 100644
--- a/insns.def
+++ b/insns.def
@@ -1022,6 +1022,12 @@ invokesuper
 
     recv = GET_SELF();
     vm_search_superclass(GET_CFP(), GET_ISEQ(), recv, TOPN(num), &id, &klass);
+
+    /* temporary measure for [Bug #2402] [Bug #2502] [Bug #3136] */
+    if (!rb_obj_is_kind_of(recv, klass)) {
+	rb_raise(rb_eNotImpError, "super from singleton method that is defined to multiple classes is not supported; this will be fixed in 1.9.3 or later");
+    }
+
     me = rb_method_entry(klass, id);
 
     CALL_METHOD(num, blockptr, flag, id, me, recv);