chore(cpu): separate LevCt

backends/concrete-cpu/src/implementation/types/keyswitch_key.rs

@@ -1,3 +1,4 @@
+use super::lev_ciphertext::LevCiphertext;
 use super::*;
 use crate::implementation::{Container, ContainerMut, Split};
 
@@ -10,14 +11,6 @@ pub struct LweKeyswitchKey<C: Container> {
     pub decomp_params: DecompParams,
 }
 
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-#[readonly::make]
-pub struct LevCiphertext<C: Container> {
-    pub data: C,
-    pub lwe_dimension: usize,
-    pub ciphertext_count: usize,
-}
-
 impl<C: Container> LweKeyswitchKey<C> {
     pub fn data_len(
         output_dimension: usize,
@@ -102,66 +95,3 @@ impl<C: Container> LweKeyswitchKey<C> {
             })
     }
 }
-
-impl<C: Container> LevCiphertext<C> {
-    pub fn data_len(lwe_dimension: usize, ciphertext_count: usize) -> usize {
-        ciphertext_count * (lwe_dimension + 1)
-    }
-
-    pub fn new(data: C, lwe_dimension: usize, ciphertext_count: usize) -> Self {
-        debug_assert_eq!(data.len(), Self::data_len(lwe_dimension, ciphertext_count));
-
-        Self {
-            data,
-            lwe_dimension,
-            ciphertext_count,
-        }
-    }
-
-    pub unsafe fn from_raw_parts(
-        data: C::Pointer,
-        lwe_dimension: usize,
-        ciphertext_count: usize,
-    ) -> Self
-    where
-        C: Split,
-    {
-        Self {
-            data: C::from_raw_parts(data, Self::data_len(lwe_dimension, ciphertext_count)),
-            lwe_dimension,
-            ciphertext_count,
-        }
-    }
-
-    pub fn as_view(&self) -> LevCiphertext<&[C::Item]> {
-        LevCiphertext {
-            data: self.data.as_ref(),
-            lwe_dimension: self.lwe_dimension,
-            ciphertext_count: self.ciphertext_count,
-        }
-    }
-
-    pub fn as_mut_view(&mut self) -> LevCiphertext<&mut [C::Item]>
-    where
-        C: ContainerMut,
-    {
-        LevCiphertext {
-            data: self.data.as_mut(),
-            lwe_dimension: self.lwe_dimension,
-            ciphertext_count: self.ciphertext_count,
-        }
-    }
-
-    pub fn into_data(self) -> C {
-        self.data
-    }
-
-    pub fn into_ciphertext_iter(self) -> impl DoubleEndedIterator<Item = LweCiphertext<C>>
-    where
-        C: Split,
-    {
-        self.data
-            .split_into(self.ciphertext_count)
-            .map(move |slice| LweCiphertext::new(slice, self.lwe_dimension))
-    }
-}

backends/concrete-cpu/src/implementation/types/lev_ciphertext.rs

@@ -0,0 +1,73 @@
+use super::*;
+use crate::implementation::{Container, ContainerMut, Split};
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+#[readonly::make]
+pub struct LevCiphertext<C: Container> {
+    pub data: C,
+    pub lwe_dimension: usize,
+    pub ciphertext_count: usize,
+}
+
+impl<C: Container> LevCiphertext<C> {
+    pub fn data_len(lwe_dimension: usize, ciphertext_count: usize) -> usize {
+        ciphertext_count * (lwe_dimension + 1)
+    }
+
+    pub fn new(data: C, lwe_dimension: usize, ciphertext_count: usize) -> Self {
+        debug_assert_eq!(data.len(), Self::data_len(lwe_dimension, ciphertext_count));
+
+        Self {
+            data,
+            lwe_dimension,
+            ciphertext_count,
+        }
+    }
+
+    pub unsafe fn from_raw_parts(
+        data: C::Pointer,
+        lwe_dimension: usize,
+        ciphertext_count: usize,
+    ) -> Self
+    where
+        C: Split,
+    {
+        Self {
+            data: C::from_raw_parts(data, Self::data_len(lwe_dimension, ciphertext_count)),
+            lwe_dimension,
+            ciphertext_count,
+        }
+    }
+
+    pub fn as_view(&self) -> LevCiphertext<&[C::Item]> {
+        LevCiphertext {
+            data: self.data.as_ref(),
+            lwe_dimension: self.lwe_dimension,
+            ciphertext_count: self.ciphertext_count,
+        }
+    }
+
+    pub fn as_mut_view(&mut self) -> LevCiphertext<&mut [C::Item]>
+    where
+        C: ContainerMut,
+    {
+        LevCiphertext {
+            data: self.data.as_mut(),
+            lwe_dimension: self.lwe_dimension,
+            ciphertext_count: self.ciphertext_count,
+        }
+    }
+
+    pub fn into_data(self) -> C {
+        self.data
+    }
+
+    pub fn into_ciphertext_iter(self) -> impl DoubleEndedIterator<Item = LweCiphertext<C>>
+    where
+        C: Split,
+    {
+        self.data
+            .split_into(self.ciphertext_count)
+            .map(move |slice| LweCiphertext::new(slice, self.lwe_dimension))
+    }
+}

backends/concrete-cpu/src/implementation/types/mod.rs

@@ -52,5 +52,6 @@ pub use csprng::*;
 
 pub mod ciphertext_list;
 pub mod glev_ciphertext;
+pub mod lev_ciphertext;
 pub mod polynomial;
 pub mod polynomial_list;