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.
---
 variable.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'variable.c')

diff --git a/variable.c b/variable.c
index 362ccddc13..4d62361fd0 100644
--- a/variable.c
+++ b/variable.c
@@ -277,6 +277,7 @@ rb_path_to_class(VALUE pathname)
   undefined_class:
     rb_raise(rb_eArgError, "undefined class/module % "PRIsVALUE,
              rb_str_subseq(pathname, 0, p-path));
+    UNREACHABLE_RETURN(Qundef);
 }
 
 VALUE
@@ -3347,6 +3348,7 @@ rb_mod_remove_cvar(VALUE mod, VALUE name)
   not_defined:
     rb_name_err_raise("class variable %1$s not defined for %2$s",
                       mod, name);
+    UNREACHABLE_RETURN(Qundef);
 }
 
 VALUE
-- 
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