From fb97bf632b11bb0cee2ca0a14a0a28adbd3cd3ee Mon Sep 17 00:00:00 2001
From: Ziyang Hu <hu.ziyang@cantab.net>
Date: Thu, 5 May 2022 16:40:48 +0800
Subject: [PATCH] storage ID needs no mutability

---
 src/db/ddl.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/db/ddl.rs b/src/db/ddl.rs
index bd1f485a..0da53d8e 100644
--- a/src/db/ddl.rs
+++ b/src/db/ddl.rs
@@ -231,8 +231,7 @@ impl<'s> Session<'s> {
     }
 
 
-    fn get_next_storage_id(&mut self, in_root: bool) -> Result<i64> {
-        // TODO: deal with wrapping problem
+    fn get_next_storage_id(&self, in_root: bool) -> Result<i64> {
         let mut key_entry = Tuple::with_null_prefix();
         key_entry.push_null();
         let db_res = if in_root {