// Copyright 2019 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.

package tidbcluster

import (
	"encoding/json"

	"k8s.io/apimachinery/pkg/util/sets"
)

func mustToString(set sets.Int32) string {
	b, err := json.Marshal(set.List())
	if err != nil {
		panic(err)
	}
	return string(b)
}