* eval.c (rb_using_refinement): make the method table of an iclass

  for a refinement that of the refinement, not that of the origin of
  the refinement, which is set by rb_include_class_new().  This
  change is needed to make module prepend into a refinement work
  properly.

* test/ruby/test_refinement.rb: related test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38328 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index c32b974363..f6a7b5dfb1 100644
--- a/eval.c
+++ b/eval.c
@@ -1078,6 +1078,7 @@ rb_using_refinement(NODE *cref, VALUE klass, VALUE module)
     FL_SET(module, RMODULE_IS_OVERLAID);
     c = iclass = rb_include_class_new(module, superclass);
     RCLASS_REFINED_CLASS(c) = klass;
+    RCLASS_M_TBL(c) = RCLASS_M_TBL(module);
     module = RCLASS_SUPER(module);
     while (module && module != klass) {
 	FL_SET(module, RMODULE_IS_OVERLAID);