limit unsafe scope

Author: tower120

src/vec/mod.rs

@@ -377,17 +377,17 @@ impl<T, LenT: LenType, const N: usize> Vec<T, N, LenT> {
             }
         } else {
             let mut v = Self::new();
-            unsafe {
-                // MaybeUninit::deref is non-const, so we just cast it through.
-                // Casting to internal value of MaybeUninit<T> is safe since it is transparent.
-                let src_ptr: *const T = ptr::from_ref(&src).cast();
 
-                // Cast from [MaybeUninit] to [T] is safe since it is transparent.
-                let dst_ptr: *mut T = v.buffer.buffer.as_mut_ptr().cast();
+            // MaybeUninit::deref is non-const, so we just cast it through.
+            // Casting to internal value of MaybeUninit<T> is safe since it is transparent.
+            let src_ptr: *const T = ptr::from_ref(&src).cast();
+
+            // Cast from [MaybeUninit] to [T] is safe since it is transparent.
+            let dst_ptr: *mut T = v.buffer.buffer.as_mut_ptr().cast();
+
+            unsafe { ptr::copy_nonoverlapping(src_ptr, dst_ptr, M) };
+            v.len = len;
 
-                ptr::copy_nonoverlapping(src_ptr, dst_ptr, M);
-                v.len = len;
-            }
             v
         }
     }