class.c: TypeError when superclass mismatch

* class.c (rb_define_class_id_under): raise TypeError exception
  same as ruby level class definition when superclass mismatch.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51048 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index b516ee88f4..b1e80ec764 100644
--- a/NEWS
+++ b/NEWS
@@ -143,6 +143,10 @@ with all sufficient information, see the ChangeLog file.
 
 === C API updates
 
+* rb_define_class_id_under() now raises a TypeError exception when the
+  class is already defined but its superclass does not match the given
+  superclass, as well as definitions in ruby level.
+
 === Build system updates
 
 === Implementation changes