add bytecheck for matrix

Cargo.toml

@@ -52,7 +52,7 @@ convert-glam020 = [ "glam020" ]
 ## `serde-serialize`.
 serde-serialize-no-std = [ "serde", "num-complex/serde" ]
 serde-serialize        = [ "serde-serialize-no-std", "serde/std" ]
-rkyv-serialize-no-std  = [ "rkyv" ]
+rkyv-serialize-no-std  = [ "rkyv", "bytecheck" ]
 rkyv-serialize         = [ "rkyv-serialize-no-std", "rkyv/std" ]
 
 # Randomness
@@ -80,6 +80,7 @@ rand_distr     = { version = "0.4", default-features = false, optional = true }
 matrixmultiply = { version = "0.3", optional = true }
 serde          = { version = "1.0", default-features = false, features = [ "derive" ], optional = true }
 rkyv           = { version = "~0.7.1", optional = true }
+bytecheck      = { version = "~0.6.1", optional = true }
 mint           = { version = "0.5", optional = true }
 quickcheck     = { version = "1", optional = true }
 pest           = { version = "2", optional = true }

src/base/matrix.rs

@@ -293,6 +293,7 @@ mod rkyv_impl {
     use super::Matrix;
     use core::marker::PhantomData;
     use rkyv::{out_field, Archive, Deserialize, Fallible, Serialize};
+    use bytecheck::CheckBytes;
 
     impl<T: Archive, R: Archive, C: Archive, S: Archive> Archive for Matrix<T, R, C, S> {
         type Archived = Matrix<T::Archived, R::Archived, C::Archived, S::Archived>;
@@ -325,6 +326,22 @@ mod rkyv_impl {
             })
         }
     }
+
+    impl<__C: ?Sized, T, R, C, S: CheckBytes<__C>>
+        CheckBytes<__C>
+        for Matrix<T, R, C, S>
+    where
+        S: CheckBytes<__C>,
+    {
+        type Error = <S as CheckBytes<__C>>::Error;
+        unsafe fn check_bytes<'a>(
+            value: *const Matrix<T, R, C, S>,
+            context: &mut __C,
+        ) -> Result<&'a Self, Self::Error> {
+            let _ = S::check_bytes(::core::ptr::addr_of!((*value).data), context)?;
+            Ok(&*value)
+        }
+    }
 }
 
 impl<T, R, C, S> Matrix<T, R, C, S> {