From 971131d951c21e85934fc61f42c87f3ee87c9e98 Mon Sep 17 00:00:00 2001
From: Skyxim <me@skyxim.dev>
Date: Sat, 1 Apr 2023 10:52:20 +0800
Subject: [PATCH] chore: add comment

---
 component/trie/sskv.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/component/trie/sskv.go b/component/trie/sskv.go
index 61e92ce7..268f6c18 100644
--- a/component/trie/sskv.go
+++ b/component/trie/sskv.go
@@ -34,6 +34,7 @@ func NewDomainSet(keys []string) *DomainSet {
 		reserveDomains = append(reserveDomains, utils.Reverse(domain))
 	})
 	// ensure that the same prefix is continuous
+	// and according to the ascending sequence of length
 	sort.Strings(reserveDomains)
 	keys = reserveDomains
 	if len(keys) == 0 {