allocate negator results in arena (#1898)

2023-08-02 19:50:27 -06:00
parent 2c05ebbded
commit ec450fc567
2 changed files with 15 additions and 11 deletions
--- a/src/arena.rs
+++ b/src/arena.rs
@@ -242,9 +242,11 @@ impl<T: fmt::Display> fmt::Display for TypedArenaPtr<T> {
 }

 impl<T: ?Sized + ArenaAllocated> TypedArenaPtr<T> {
+    // data must be allocated in the arena already.
    #[inline]
    pub const fn new(data: *mut T) -> Self {
-        unsafe { TypedArenaPtr(ptr::NonNull::new_unchecked(data)) }
+        let result = unsafe { TypedArenaPtr(ptr::NonNull::new_unchecked(data)) };
+        result
    }

    #[inline]