1// Copyright 2015 CoreOS, Inc. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package dbus 16 17type set struct { 18 data map[string]bool 19} 20 21func (s *set) Add(value string) { 22 s.data[value] = true 23} 24 25func (s *set) Remove(value string) { 26 delete(s.data, value) 27} 28 29func (s *set) Contains(value string) (exists bool) { 30 _, exists = s.data[value] 31 return 32} 33 34func (s *set) Length() int { 35 return len(s.data) 36} 37 38func (s *set) Values() (values []string) { 39 for val, _ := range s.data { 40 values = append(values, val) 41 } 42 return 43} 44 45func newSet() *set { 46 return &set{make(map[string]bool)} 47} 48