From 62ae34863c7a9e03c16b0e2db65de5b12f2d34ee Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 14 Nov 2024 22:33:50 +0000
Subject: [PATCH] unsized

---
 src/lib.rs  | 2 +-
 src/test.rs | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index bae5e82..7be9207 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,7 +13,7 @@ use std::ptr::NonNull;
 ///
 /// Ensuring that `Ptr`s are freed at the right time is up to the caller.
 /// But aliasing, drop, etc., is (largely) handled by the library.
-pub struct Ptr<T> {
+pub struct Ptr<T: ?Sized> {
     /// # SAFETY
     ///
     /// Invariants (only while valid, but we can rely on them
diff --git a/src/test.rs b/src/test.rs
index eba2cd4..996db00 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -41,3 +41,11 @@ fn demo() {
 
     drop(l);
 }
+
+#[test]
+fn unsize() {
+    let mut noalias = unsafe { NoAliasSingleton::init() };
+    let p = Ptr::new_heap("hi");
+    println!("{}", p.borrow(&noalias));
+    unsafe { p.free_heap(&mut noalias) };
+}
-- 
2.30.2