diff options
Diffstat (limited to 'toolkit/crashreporter/client/app/src/ui/windows/twoway.rs')
-rw-r--r-- | toolkit/crashreporter/client/app/src/ui/windows/twoway.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/toolkit/crashreporter/client/app/src/ui/windows/twoway.rs b/toolkit/crashreporter/client/app/src/ui/windows/twoway.rs new file mode 100644 index 0000000000..8a18162e08 --- /dev/null +++ b/toolkit/crashreporter/client/app/src/ui/windows/twoway.rs @@ -0,0 +1,36 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +use std::collections::HashMap; + +/// A two-way hashmap. +#[derive(Debug)] +pub struct TwoWay<K, V> { + forward: HashMap<K, V>, + reverse: HashMap<V, K>, +} + +impl<K, V> Default for TwoWay<K, V> { + fn default() -> Self { + TwoWay { + forward: Default::default(), + reverse: Default::default(), + } + } +} + +impl<K: Eq + std::hash::Hash + Clone, V: Eq + std::hash::Hash + Clone> TwoWay<K, V> { + pub fn insert(&mut self, key: K, value: V) { + self.forward.insert(key.clone(), value.clone()); + self.reverse.insert(value, key); + } + + pub fn forward(&self) -> &HashMap<K, V> { + &self.forward + } + + pub fn reverse(&self) -> &HashMap<V, K> { + &self.reverse + } +} |