From fe746747b49efb310989792681e171559581920c Mon Sep 17 00:00:00 2001
From: TSUYUSATO Kitsune <make.just.on@gmail.com>
Date: Tue, 14 Nov 2023 17:15:37 +0900
Subject: [PATCH] Reject 'class << (return); end` by "void value expression"

---
 parse.y | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/parse.y b/parse.y
index caddbcc178..94eb6f3e5a 100644
--- a/parse.y
+++ b/parse.y
@@ -4124,7 +4124,7 @@ primary		: literal
                         p->ctxt.in_class = $k_class.in_class;
                         p->ctxt.shareable_constant_value = $k_class.shareable_constant_value;
                     }
-                | k_class tLSHFT expr
+                | k_class tLSHFT expr_value
                     {
                         begin_definition("", &@k_class, &@tLSHFT);
                     }
@@ -4133,12 +4133,12 @@ primary		: literal
                   k_end
                     {
                     /*%%%*/
-                        $$ = NEW_SCLASS($expr, $bodystmt, &@$);
+                        $$ = NEW_SCLASS($expr_value, $bodystmt, &@$);
                         nd_set_line(RNODE_SCLASS($$)->nd_body, @k_end.end_pos.lineno);
-                        set_line_body($bodystmt, nd_line($expr));
-                        fixpos($$, $expr);
+                        set_line_body($bodystmt, nd_line($expr_value));
+                        fixpos($$, $expr_value);
                     /*% %*/
-                    /*% ripper: sclass!($expr, $bodystmt) %*/
+                    /*% ripper: sclass!($expr_value, $bodystmt) %*/
                         local_pop(p);
                         p->ctxt.in_def = $k_class.in_def;
                         p->ctxt.in_class = $k_class.in_class;