From 279c21b816777b8b25457b27fd1994a9fe359a98 Mon Sep 17 00:00:00 2001
From: dearblue <dearblue@users.noreply.github.com>
Date: Sun, 18 Aug 2019 14:45:35 +0900
Subject: Prohibit changes to iseq in principle

---
 src/error.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/error.c')

diff --git a/src/error.c b/src/error.c
index 664da3fd6..bb8a0ba98 100644
--- a/src/error.c
+++ b/src/error.c
@@ -198,11 +198,11 @@ static void
 exc_debug_info(mrb_state *mrb, struct RObject *exc)
 {
   mrb_callinfo *ci = mrb->c->ci;
-  mrb_code *pc = ci->pc;
+  const mrb_code *pc = ci->pc;
 
   if (mrb_obj_iv_defined(mrb, exc, mrb_intern_lit(mrb, "file"))) return;
   while (ci >= mrb->c->cibase) {
-    mrb_code *err = ci->err;
+    const mrb_code *err = ci->err;
 
     if (!err && pc) err = pc - 1;
     if (err && ci->proc && !MRB_PROC_CFUNC_P(ci->proc)) {
-- 
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