vm_eval.c: follow the original class

* vm_eval.c (vm_call0_body): follow the original class, not to
  loop the prepended module.  [ruby-core:77784] [Bug #12876]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 0 deletions

diff --git a/test/ruby/test_super.rb b/test/ruby/test_super.rb
index 469ba60ff2..9691116fb4 100644
--- a/test/ruby/test_super.rb
+++ b/test/ruby/test_super.rb
@@ -530,4 +530,18 @@ class TestSuper < Test::Unit::TestCase
 
     assert_equal "b", b.new.foo{"c"}
   end
+
+  def test_public_zsuper_with_prepend
+    bug12876 = '[ruby-core:77784] [Bug #12876]'
+    m = EnvUtil.labeled_module("M")
+    c = EnvUtil.labeled_class("C") {prepend m; public :initialize}
+    o = assert_nothing_raised(Timeout::Error, bug12876) {
+      Timeout.timeout(3) {c.new}
+    }
+    assert_instance_of(c, o)
+    m.module_eval {def initialize; raise "exception in M"; end}
+    assert_raise_with_message(RuntimeError, "exception in M") {
+      c.new
+    }
+  end
 end