Implement DataOwned for CowRepr

Author: jturner314

src/arraytraits.rs

@@ -8,9 +8,9 @@
 
 #[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
+use alloc::sync::Arc;
 #[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
-use alloc::sync::Arc;
 use std::hash;
 use std::mem;
 use std::mem::size_of;

src/data_traits.rs

@@ -534,7 +534,7 @@ unsafe impl<'a, A> DataMut for ViewRepr<&'a mut A> {}
 
 /// Array representation trait.
 ///
-/// A representation that is a unique or shared owner of its data.
+/// A representation which can be the owner of its data.
 ///
 /// ***Internal trait, see `Data`.***
 // The owned storage represents the ownership and allocation of the array's elements.
@@ -730,6 +730,24 @@ unsafe impl<'a, A> Data for CowRepr<'a, A>
 
 unsafe impl<'a, A> DataMut for CowRepr<'a, A> where A: Clone {}
 
+unsafe impl<'a, A> DataOwned for CowRepr<'a, A>
+{
+    type MaybeUninit = CowRepr<'a, MaybeUninit<A>>;
+
+    fn new(elements: Vec<A>) -> Self
+    {
+        CowRepr::Owned(OwnedRepr::new(elements))
+    }
+
+    fn into_shared<D>(self_: ArrayBase<Self, D>) -> ArcArray<A, D>
+    where
+        A: Clone,
+        D: Dimension,
+    {
+        self_.into_owned().into_shared()
+    }
+}
+
 /// Array representation trait.
 ///
 /// The RawDataSubst trait maps the element type of array storage, while