| // Copyright Istio Authors |
| // |
| // 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, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package resource |
| |
| // StringMap is used to store labels and annotations. |
| type StringMap map[string]string |
| |
| // Clone the StringMap |
| func (s StringMap) Clone() StringMap { |
| if s == nil { |
| return nil |
| } |
| |
| m := make(map[string]string, len(s)) |
| for k, v := range s { |
| m[k] = v |
| } |
| |
| return m |
| } |
| |
| // CloneOrCreate clones a StringMap. It creates the map if it doesn't exist. |
| func (s StringMap) CloneOrCreate() StringMap { |
| m := s.Clone() |
| if m == nil { |
| m = make(map[string]string) |
| } |
| return m |
| } |
| |
| // Remove the given name from the string map |
| func (s StringMap) Delete(name string) { |
| if s != nil { |
| delete(s, name) |
| } |
| } |