khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 1 | // @generated Code generated by gen-atomicwrapper. |
| 2 | |
| 3 | // Copyright (c) 2020 Uber Technologies, Inc. |
khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 4 | // |
| 5 | // Permission is hereby granted, free of charge, to any person obtaining a copy |
| 6 | // of this software and associated documentation files (the "Software"), to deal |
| 7 | // in the Software without restriction, including without limitation the rights |
| 8 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 9 | // copies of the Software, and to permit persons to whom the Software is |
| 10 | // furnished to do so, subject to the following conditions: |
| 11 | // |
| 12 | // The above copyright notice and this permission notice shall be included in |
| 13 | // all copies or substantial portions of the Software. |
| 14 | // |
| 15 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 18 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 21 | // THE SOFTWARE. |
| 22 | |
| 23 | package atomic |
| 24 | |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 25 | // String is an atomic type-safe wrapper for string values. |
| 26 | type String struct { |
| 27 | _ nocmp // disallow non-atomic comparison |
khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 28 | |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 29 | v Value |
| 30 | } |
| 31 | |
| 32 | var _zeroString string |
| 33 | |
| 34 | // NewString creates a new String. |
| 35 | func NewString(v string) *String { |
| 36 | x := &String{} |
| 37 | if v != _zeroString { |
| 38 | x.Store(v) |
khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 39 | } |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 40 | return x |
khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | // Load atomically loads the wrapped string. |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 44 | func (x *String) Load() string { |
| 45 | if v := x.v.Load(); v != nil { |
| 46 | return v.(string) |
khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 47 | } |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 48 | return _zeroString |
khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 49 | } |
| 50 | |
| 51 | // Store atomically stores the passed string. |
khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 52 | func (x *String) Store(v string) { |
| 53 | x.v.Store(v) |
khenaidoo | ac63710 | 2019-01-14 15:44:34 -0500 | [diff] [blame] | 54 | } |