From 967040ba59799e6b7891168ffbf37cc646988d84 Mon Sep 17 00:00:00 2001
From: Koichi Sasada <ko1@atdot.net>
Date: Sun, 13 Dec 2020 05:55:18 +0900
Subject: Introduce negative method cache

pCMC doesn't have negative method cache so this patch  implements it.
---
 thread.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'thread.c')

diff --git a/thread.c b/thread.c
index e910615b84..e60d71f75a 100644
--- a/thread.c
+++ b/thread.c
@@ -5671,6 +5671,8 @@ rb_resolve_me_location(const rb_method_entry_t *me, VALUE resolved_location[5])
 {
     VALUE path, beg_pos_lineno, beg_pos_column, end_pos_lineno, end_pos_column;
 
+    if (!me->def) return NULL; // negative cme
+
   retry:
     switch (me->def->type) {
       case VM_METHOD_TYPE_ISEQ: {
-- 
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