return
	}

	actionToPolicy := map[rbacpb.RBAC_Action]map[string]struct{}{}
	policyToRule := map[string]map[string]struct{}{}

	addPolicy := func(action rbacpb.RBAC_Action, name string, rule string) {
		if actionToPolicy[action] == nil {
			actionToPolicy[action] = map[string]struct{}{}
		}
		if policyToRule[name] == nil {
			policyToRule[name] = map[string]struct{}{}
		}

	// TODO support list
	n := match.GetMatcherTree().GetInput().GetName()

	var m map[string]*matcher.Matcher_OnMatch
	equality := "="
	switch v := match.GetMatcherTree().GetTreeType().(type) {
	case *matcher.Matcher_MatcherTree_ExactMatchMap:
		m = v.ExactMatchMap.Map
	case *matcher.Matcher_MatcherTree_PrefixMatchMap:
		m = v.PrefixMatchMap.Map
		equality = "^"
	case *matcher.Matcher_MatcherTree_CustomMatch: