Add back missing Backup for SeaHash and WyHash rngs

juntyr · Jan 11, 2024 · 352b4e7 · 352b4e7
1 parent 775094a
commit 352b4e7
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Showing 2 changed files with 16 additions and 2 deletions.
diff --git a/necsim/impls/no-std/src/cogs/rng/seahash.rs b/necsim/impls/no-std/src/cogs/rng/seahash.rs
@@ -1,6 +1,6 @@
 use core::marker::PhantomData;
 
-use necsim_core::cogs::{MathsCore, PrimeableRng, RngCore};
+use necsim_core::cogs::{Backup, MathsCore, PrimeableRng, RngCore};
 
 use serde::{Deserialize, Serialize};
 
@@ -17,6 +17,13 @@ pub struct SeaHash<M: MathsCore> {
     marker: PhantomData<M>,
 }
 
+#[contract_trait]
+impl<M: MathsCore> Backup for SeaHash<M> {
+    unsafe fn backup_unchecked(&self) -> Self {
+        self.clone()
+    }
+}
+
 impl<M: MathsCore> RngCore<M> for SeaHash<M> {
     type Seed = [u8; 8];
 

diff --git a/necsim/impls/no-std/src/cogs/rng/wyhash.rs b/necsim/impls/no-std/src/cogs/rng/wyhash.rs
@@ -1,6 +1,6 @@
 use core::marker::PhantomData;
 
-use necsim_core::cogs::{MathsCore, PrimeableRng, RngCore};
+use necsim_core::cogs::{Backup, MathsCore, PrimeableRng, RngCore};
 
 use serde::{Deserialize, Serialize};
 
@@ -23,6 +23,13 @@ pub struct WyHash<M: MathsCore> {
     marker: PhantomData<M>,
 }
 
+#[contract_trait]
+impl<M: MathsCore> Backup for WyHash<M> {
+    unsafe fn backup_unchecked(&self) -> Self {
+        self.clone()
+    }
+}
+
 impl<M: MathsCore> RngCore<M> for WyHash<M> {
     type Seed = [u8; 8];