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9 changes: 9 additions & 0 deletions compiler/rustc_data_structures/src/tagged_ptr/copy.rs
Original file line number Diff line number Diff line change
Expand Up @@ -82,11 +82,13 @@ where
/// drop, use [`TaggedPtr`] instead.
///
/// [`TaggedPtr`]: crate::tagged_ptr::TaggedPtr
#[inline]
pub fn new(pointer: P, tag: T) -> Self {
Self { packed: Self::pack(P::into_ptr(pointer), tag), tag_ghost: PhantomData }
}

/// Retrieves the pointer.
#[inline]
pub fn pointer(self) -> P
where
P: Copy,
Expand Down Expand Up @@ -123,6 +125,7 @@ where
/// according to `self.packed` encoding scheme.
///
/// [`P::into_ptr`]: Pointer::into_ptr
#[inline]
fn pack(ptr: NonNull<P::Target>, tag: T) -> NonNull<P::Target> {
// Trigger assert!
let () = Self::ASSERTION;
Expand All @@ -145,6 +148,7 @@ where
}

/// Retrieves the original raw pointer from `self.packed`.
#[inline]
pub(super) fn pointer_raw(&self) -> NonNull<P::Target> {
self.packed.map_addr(|addr| unsafe { NonZeroUsize::new_unchecked(addr.get() << T::BITS) })
}
Expand Down Expand Up @@ -184,6 +188,7 @@ where
P: Pointer + Copy,
T: Tag,
{
#[inline]
fn clone(&self) -> Self {
*self
}
Expand All @@ -196,6 +201,7 @@ where
{
type Target = P::Target;

#[inline]
fn deref(&self) -> &Self::Target {
// Safety:
// `pointer_raw` returns the original pointer from `P::into_ptr` which,
Expand All @@ -209,6 +215,7 @@ where
P: Pointer + DerefMut,
T: Tag,
{
#[inline]
fn deref_mut(&mut self) -> &mut Self::Target {
// Safety:
// `pointer_raw` returns the original pointer from `P::into_ptr` which,
Expand All @@ -235,6 +242,7 @@ where
P: Pointer,
T: Tag,
{
#[inline]
fn eq(&self, other: &Self) -> bool {
self.packed == other.packed
}
Expand All @@ -252,6 +260,7 @@ where
P: Pointer,
T: Tag,
{
#[inline]
fn hash<H: Hasher>(&self, state: &mut H) {
self.packed.hash(state);
}
Expand Down
8 changes: 8 additions & 0 deletions compiler/rustc_data_structures/src/tagged_ptr/drop.rs
Original file line number Diff line number Diff line change
Expand Up @@ -30,16 +30,19 @@ where
T: Tag,
{
/// Tags `pointer` with `tag`.
#[inline]
pub fn new(pointer: P, tag: T) -> Self {
TaggedPtr { raw: CopyTaggedPtr::new(pointer, tag) }
}

/// Retrieves the tag.
#[inline]
pub fn tag(&self) -> T {
self.raw.tag()
}

/// Sets the tag to a new value.
#[inline]
pub fn set_tag(&mut self, tag: T) {
self.raw.set_tag(tag)
}
Expand All @@ -63,6 +66,8 @@ where
T: Tag,
{
type Target = P::Target;

#[inline]
fn deref(&self) -> &Self::Target {
self.raw.deref()
}
Expand All @@ -73,6 +78,7 @@ where
P: Pointer + DerefMut,
T: Tag,
{
#[inline]
fn deref_mut(&mut self) -> &mut Self::Target {
self.raw.deref_mut()
}
Expand Down Expand Up @@ -108,6 +114,7 @@ where
P: Pointer,
T: Tag,
{
#[inline]
fn eq(&self, other: &Self) -> bool {
self.raw.eq(&other.raw)
}
Expand All @@ -125,6 +132,7 @@ where
P: Pointer,
T: Tag,
{
#[inline]
fn hash<H: Hasher>(&self, state: &mut H) {
self.raw.hash(state);
}
Expand Down