chore: trie.DomainTrie will not depend on zero value

dns/filters.go

@@ -71,13 +71,13 @@ type fallbackDomainFilter interface {
 }
 
 type domainFilter struct {
-	tree *trie.DomainTrie[bool]
+	tree *trie.DomainTrie[struct{}]
 }
 
 func NewDomainFilter(domains []string) *domainFilter {
-	df := domainFilter{tree: trie.New[bool]()}
+	df := domainFilter{tree: trie.New[struct{}]()}
 	for _, domain := range domains {
-		_ = df.tree.Insert(domain, true)
+		_ = df.tree.Insert(domain, struct{}{})
 	}
 	return &df
 }

dns/middleware.go

@@ -37,7 +37,7 @@ func withHosts(hosts *trie.DomainTrie[netip.Addr], mapping *cache.LruCache[netip
 				return next(ctx, r)
 			}
 
-			ip := record.Data
+			ip := record.Data()
 			msg := r.Copy()
 
 			if ip.Is4() && q.Qtype == D.TypeA {

dns/resolver.go

@@ -245,7 +245,7 @@ func (r *Resolver) matchPolicy(m *D.Msg) []dnsClient {
 		return nil
 	}
 
-	p := record.Data
+	p := record.Data()
 	return p.GetData()
 }