From de3e931df7abdc3ee22dbb7543e86af6d00ee899 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@ruby-lang.org>
Date: Wed, 24 Jun 2020 16:23:59 +0900
Subject: add UNREACHABLE_RETURN

Not every compilers understand that rb_raise does not return.  When a
function does not end with a return statement, such compilers can issue
warnings.  We would better tell them about reachabilities.
---
 thread.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'thread.c')

diff --git a/thread.c b/thread.c
index 33377359d1..e463b72a41 100644
--- a/thread.c
+++ b/thread.c
@@ -5175,6 +5175,7 @@ exec_recursive(VALUE (*func) (VALUE, VALUE, int), VALUE obj, VALUE pairid, VALUE
     rb_raise(rb_eTypeError, "invalid inspect_tbl pair_list "
              "for %+"PRIsVALUE" in %+"PRIsVALUE,
              sym, rb_thread_current());
+    UNREACHABLE_RETURN(Qundef);
 }
 
 /*
-- 
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