diff options
| -rw-r--r-- | library/core/src/pin.rs | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/library/core/src/pin.rs b/library/core/src/pin.rs index 90f4a5390e7..84fed4ed243 100644 --- a/library/core/src/pin.rs +++ b/library/core/src/pin.rs @@ -406,7 +406,9 @@ use crate::ops::{CoerceUnsized, Deref, DerefMut, DispatchFromDyn, Receiver}; #[repr(transparent)] #[derive(Copy, Clone)] pub struct Pin<P> { - pointer: P, + #[unstable(feature = "unsafe_pin_internals", issue = "none")] + #[doc(hidden)] + pub pointer: P, } // The following implementations aren't derived in order to avoid soundness @@ -1074,6 +1076,8 @@ impl<P, U> DispatchFromDyn<Pin<U>> for Pin<P> where P: DispatchFromDyn<U> {} /// /// [`Box::pin`]: ../../std/boxed/struct.Box.html#method.pin #[unstable(feature = "pin_macro", issue = "93178")] +#[rustc_macro_transparency = "semitransparent"] +#[allow_internal_unstable(unsafe_pin_internals)] pub macro pin($value:expr $(,)?) { // This is `Pin::new_unchecked(&mut { $value })`, so, for starters, let's // review such a hypothetical macro (that any user-code could define): @@ -1145,8 +1149,5 @@ pub macro pin($value:expr $(,)?) { // // See https://doc.rust-lang.org/1.58.1/reference/destructors.html#temporary-lifetime-extension // for more info. - // - // Finally, we don't hit problems _w.r.t._ the privacy of the `pointer` field, or the - // unqualified `Pin` name, thanks to `decl_macro`s being _fully_ hygienic (`def_site` hygiene). - Pin::<&mut _> { pointer: &mut { $value } } + $crate::pin::Pin::<&mut _> { pointer: &mut { $value } } } |