bjoernager/rust
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Add sugar for &pin (const|mut) types

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Eric Holk 2024-09-20 12:09:18 -07:00
parent 7caad69253
commit ae698f8199
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23 changed files with 284 additions and 63 deletions
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11
compiler/rustc_ast/src/ast.rs
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@ -23,7 +23,7 @@ use std::{cmp, fmt, mem};
pub use GenericArgs::*;
pub use UnsafeSource::*;
pub use rustc_ast_ir::{Movability, Mutability};
pub use rustc_ast_ir::{Movability, Mutability, Pinnedness};
use rustc_data_structures::packed::Pu128;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_data_structures::stack::ensure_sufficient_stack;
@ -2161,6 +2161,10 @@ pub enum TyKind {
Ptr(MutTy),
/// A reference (`&'a T` or `&'a mut T`).
Ref(Option<Lifetime>, MutTy),
/// A pinned reference (`&'a pin const T` or `&'a pin mut T`).
///
/// Desugars into `Pin<&'a T>` or `Pin<&'a mut T>`.
PinnedRef(Option<Lifetime>, MutTy),
/// A bare function (e.g., `fn(usize) -> bool`).
BareFn(P<BareFnTy>),
/// The never type (`!`).
@ -2509,7 +2513,10 @@ impl Param {
if ident.name == kw::SelfLower {
return match self.ty.kind {
TyKind::ImplicitSelf => Some(respan(self.pat.span, SelfKind::Value(mutbl))),
TyKind::Ref(lt, MutTy { ref ty, mutbl }) if ty.kind.is_implicit_self() => {
TyKind::Ref(lt, MutTy { ref ty, mutbl })
| TyKind::PinnedRef(lt, MutTy { ref ty, mutbl })
if ty.kind.is_implicit_self() =>
{
Some(respan(self.pat.span, SelfKind::Region(lt, mutbl)))
}
_ => Some(respan(