From 19d3c80e8136402a26b52c8da46eee071ec413d6 Mon Sep 17 00:00:00 2001
From: 卜部昌平 <shyouhei@ruby-lang.org>
Date: Wed, 31 Jul 2019 23:15:56 +0900
Subject: calc_lineno(): add assertions

This function has a lot of assumptions.  Should make them sure.
---
 vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'vm.c')

diff --git a/vm.c b/vm.c
index 0759ef2a01..593540a32e 100644
--- a/vm.c
+++ b/vm.c
@@ -1343,7 +1343,7 @@ rb_source_location(int *pline)
     const rb_execution_context_t *ec = GET_EC();
     const rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(ec, ec->cfp);
 
-    if (cfp && cfp->iseq) {
+    if (cfp && VM_FRAME_RUBYFRAME_P(cfp)) {
 	if (pline) *pline = rb_vm_get_sourceline(cfp);
 	return rb_iseq_path(cfp->iseq);
     }
-- 
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