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-rw-r--r--src/util/crdt/lww.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/util/crdt/lww.rs b/src/util/crdt/lww.rs
index 80747406..f8b03b85 100644
--- a/src/util/crdt/lww.rs
+++ b/src/util/crdt/lww.rs
@@ -43,6 +43,16 @@ pub struct Lww<T> {
v: T,
}
+impl<T> Lww<T> {
+ /// Map value, used for migrations
+ pub fn map<U, F: FnOnce(T) -> U>(self, f: F) -> Lww<U> {
+ Lww::<U> {
+ ts: self.ts,
+ v: f(self.v),
+ }
+ }
+}
+
impl<T> Lww<T>
where
T: Crdt,