From 44edc51612536a9e23dabf7c87afc3996efde027 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Wed, 11 Jan 2017 09:53:31 +0900
Subject: Raises Exception if raising exception class is redefined

close #3384
This issue was reported by https://hackerone.com/brakhane
---
 src/class.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src')

diff --git a/src/class.c b/src/class.c
index fed259b5b..cb7bdfddd 100644
--- a/src/class.c
+++ b/src/class.c
@@ -317,6 +317,20 @@ mrb_class_get(mrb_state *mrb, const char *name)
   return mrb_class_get_under(mrb, mrb->object_class, name);
 }
 
+MRB_API struct RClass *
+mrb_exc_get(mrb_state *mrb, const char *name)
+{
+  struct RClass *exc = mrb_class_get_under(mrb, mrb->object_class, name);
+  struct RClass *e = exc;
+
+  while (e) {
+    if (e == mrb->eException_class)
+      return exc;
+    e = e->super;
+  }
+  return mrb->eException_class;
+}
+
 MRB_API struct RClass *
 mrb_module_get_under(mrb_state *mrb, struct RClass *outer, const char *name)
 {
-- 
cgit v1.2.3