try it out

Author: AdamGS

Cargo.lock

@@ -211,6 +211,9 @@ features = ["js"]
 package = "getrandom"
 version = "0.2.15"
 
+[patch.crates-io]
+bytes = { git = "https://github.com/wyfo/arc-slice.git" }
+
 [workspace.lints.rust]
 macro_use_extern_crate = "deny"
 redundant_lifetimes = "deny"

Cargo.toml

@@ -228,7 +228,7 @@ impl<T> BufferMut<T> {
     /// ```
     #[inline]
     pub fn spare_capacity_mut(&mut self) -> &mut [MaybeUninit<T>] {
-        let dst = self.bytes.spare_capacity_mut().as_mut_ptr();
+        let dst = unsafe { self.bytes.spare_capacity_mut().as_mut_ptr() };
         unsafe {
             std::slice::from_raw_parts_mut(
                 dst as *mut MaybeUninit<T>,
@@ -290,7 +290,7 @@ impl<T> BufferMut<T> {
     where
         T: Copy,
     {
-        let mut dst: *mut T = self.bytes.spare_capacity_mut().as_mut_ptr().cast();
+        let mut dst: *mut T = unsafe { self.bytes.spare_capacity_mut().as_mut_ptr().cast() };
         // SAFETY: we checked the capacity in the reserve call
         unsafe {
             let end = dst.add(n);

vortex-buffer/src/buffer_mut.rs

@@ -13,7 +13,7 @@ impl<T> BufferMut<T> {
 
         let remaining = self.capacity() - self.len();
 
-        let begin: *const T = self.bytes.spare_capacity_mut().as_mut_ptr().cast();
+        let begin: *const T = unsafe { self.bytes.spare_capacity_mut().as_mut_ptr().cast() };
         let mut dst: *mut T = begin.cast_mut();
         for _ in 0..remaining {
             if let Some(item) = iter.next() {
@@ -42,7 +42,7 @@ impl<T> BufferMut<T> {
         let (_, high) = iter.size_hint();
         self.reserve(high.vortex_expect("TrustedLen iterator didn't have valid upper bound"));
 
-        let begin: *const T = self.bytes.spare_capacity_mut().as_mut_ptr().cast();
+        let begin: *const T = unsafe { self.bytes.spare_capacity_mut().as_mut_ptr().cast() };
         let mut dst: *mut T = begin.cast_mut();
         iter.for_each(|item| {
             unsafe {