From f668d45ffe959512a84c842e69b2e18ae1df3e91 Mon Sep 17 00:00:00 2001
From: gVisor bot <gvisor-bot@google.com>
Date: Sun, 16 Jul 2023 10:14:29 +0800
Subject: [PATCH] fix:  parse nested `sub-rules` failed

---
 config/config.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/config/config.go b/config/config.go
index ae2ebbde..c7ae0fe1 100644
--- a/config/config.go
+++ b/config/config.go
@@ -712,6 +712,9 @@ func parseRuleProviders(cfg *RawConfig) (ruleProviders map[string]providerTypes.
 
 func parseSubRules(cfg *RawConfig, proxies map[string]C.Proxy) (subRules map[string][]C.Rule, err error) {
 	subRules = map[string][]C.Rule{}
+	for name := range cfg.SubRules {
+		subRules[name] = make([]C.Rule, 0)
+	}
 	for name, rawRules := range cfg.SubRules {
 		if len(name) == 0 {
 			return nil, fmt.Errorf("sub-rule name is empty")