From cd774f4ab916290128924a3eb121b9e56fb587d2 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Tue, 27 Feb 2024 01:22:01 +0900
Subject: [PATCH] Extract `RHASH_STRING_KEY_P`

---
 hash.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hash.c b/hash.c
index 2da4c2f8a7..f8c84652cd 100644
--- a/hash.c
+++ b/hash.c
@@ -395,6 +395,7 @@ const struct st_hash_type rb_hashtype_ident = {
 };
 
 #define RHASH_IDENTHASH_P(hash) (RHASH_TYPE(hash) == &identhash)
+#define RHASH_STRING_KEY_P(hash, key) (!RHASH_IDENTHASH_P(hash) && (rb_obj_class(key) == rb_cString))
 
 typedef st_index_t st_hash_t;
 
@@ -2958,7 +2959,7 @@ rb_hash_aset(VALUE hash, VALUE key, VALUE val)
 
     rb_hash_modify(hash);
 
-    if (RHASH_IDENTHASH_P(hash) || rb_obj_class(key) != rb_cString) {
+    if (!RHASH_STRING_KEY_P(hash, key)) {
         RHASH_UPDATE_ITER(hash, iter_p, key, hash_aset, val);
     }
     else {