Add AsRef implementations for Box

MatthijsKok · MatthijsKok · commit 768dbde3b375 · 2025-04-03T14:18:02.000+02:00
diff --git a/library/alloc/src/boxed.rs b/library/alloc/src/boxed.rs
@@ -2043,6 +2043,13 @@ impl<T: ?Sized, A: Allocator> AsRef<T> for Box<T, A> {
     }
 }
 
+#[stable(feature = "smart_ptr_as_ref_str", since = "CURRENT_RUSTC_VERSION")]
+impl<A: Allocator> AsRef<[u8]> for Box<str, A> {
+    fn as_ref(&self) -> &[u8] {
+        self.deref().as_ref()
+    }
+}
+
 #[stable(since = "1.5.0", feature = "smart_ptr_as_ref")]
 impl<T: ?Sized, A: Allocator> AsMut<T> for Box<T, A> {
     fn as_mut(&mut self) -> &mut T {

Original file line number	Diff line number	Diff line change
`@@ -2043,6 +2043,13 @@ impl<T: ?Sized, A: Allocator> AsRef<T> for Box<T, A> {`
`2043`	`2043`	`}`
`2044`	`2044`	`}`
`2045`	`2045`
	`2046`	`+#[stable(feature = "smart_ptr_as_ref_str", since = "CURRENT_RUSTC_VERSION")]`
	`2047`	`+impl<A: Allocator> AsRef<[u8]> for Box<str, A> {`
	`2048`	`+ fn as_ref(&self) -> &[u8] {`
	`2049`	`+ self.deref().as_ref()`
	`2050`	`+ }`
	`2051`	`+}`
	`2052`	`+`
`2046`	`2053`	`#[stable(since = "1.5.0", feature = "smart_ptr_as_ref")]`
`2047`	`2054`	`impl<T: ?Sized, A: Allocator> AsMut<T> for Box<T, A> {`
`2048`	`2055`	`fn as_mut(&mut self) -> &mut T {`