| // Copyright 2022 The LUCI 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 lucicfg |
| |
| // stringInterner can be used to save memory by interning strings. |
| type stringInterner map[string]string |
| |
| // internString returns an interned copy of `s`. |
| func (si stringInterner) internString(s string) string { |
| if interned, ok := si[s]; ok { |
| return interned |
| } |
| si[s] = s |
| return s |
| } |
