Skip to content

Commit 8c9a674

Browse files
taiki-etaiki-e
committed
Remove project, project_ref, and project_replace attributes
1 parent 8654dd4 commit 8c9a674

25 files changed

+0
-1943
lines changed

‎pin-project-internal/build.rs

-6
Original file line numberDiff line numberDiff line change
@@ -14,12 +14,6 @@ fn main() {
1414
if minor >= 37 {
1515
println!("cargo:rustc-cfg=underscore_consts");
1616
}
17-
18-
// #[deprecated] on proc-macro requires Rust 1.40:
19-
// https://github.com/rust-lang/rust/pull/65666
20-
if minor >= 40 {
21-
println!("cargo:rustc-cfg=deprecated_proc_macro");
22-
}
2317
}
2418

2519
fn rustc_minor_version() -> Option<u32> {

‎pin-project-internal/src/lib.rs

-232
Original file line numberDiff line numberDiff line change
@@ -21,12 +21,9 @@ mod utils;
2121

2222
mod pin_project;
2323
mod pinned_drop;
24-
mod project;
2524

2625
use proc_macro::TokenStream;
2726

28-
use crate::utils::ProjKind;
29-
3027
/// An attribute that creates projection types covering all the fields of
3128
/// struct or enum.
3229
///
@@ -531,235 +528,6 @@ pub fn pinned_drop(args: TokenStream, input: TokenStream) -> TokenStream {
531528
pinned_drop::attribute(&args.into(), input).into()
532529
}
533530

534-
/// (deprecated) An attribute to provide way to refer to the projected type returned by
535-
/// `project` method.
536-
///
537-
/// **This attribute is deprecated. Consider naming projected type by passing
538-
/// `project` argument to `#[pin_project]` attribute instead, see [release note]
539-
/// for details**
540-
///
541-
/// The following syntaxes are supported.
542-
///
543-
/// # `let` bindings
544-
///
545-
/// *The attribute at the expression position is not stable, so you need to use
546-
/// a dummy `#[project]` attribute for the function.*
547-
///
548-
/// ## Examples
549-
///
550-
/// ```rust
551-
/// # #![allow(deprecated)]
552-
/// use pin_project::{pin_project, project};
553-
/// use std::pin::Pin;
554-
///
555-
/// #[pin_project]
556-
/// struct Foo<T, U> {
557-
/// #[pin]
558-
/// future: T,
559-
/// field: U,
560-
/// }
561-
///
562-
/// impl<T, U> Foo<T, U> {
563-
/// #[project] // Nightly does not need a dummy attribute to the function.
564-
/// fn baz(self: Pin<&mut Self>) {
565-
/// #[project]
566-
/// let Foo { future, field } = self.project();
567-
///
568-
/// let _: Pin<&mut T> = future;
569-
/// let _: &mut U = field;
570-
/// }
571-
/// }
572-
/// ```
573-
///
574-
/// # `match` expressions
575-
///
576-
/// *The attribute at the expression position is not stable, so you need to use
577-
/// a dummy `#[project]` attribute for the function.*
578-
///
579-
/// ## Examples
580-
///
581-
/// ```rust
582-
/// # #![allow(deprecated)]
583-
/// use pin_project::{pin_project, project};
584-
/// use std::pin::Pin;
585-
///
586-
/// #[pin_project]
587-
/// enum Enum<A, B, C> {
588-
/// Tuple(#[pin] A, B),
589-
/// Struct { field: C },
590-
/// Unit,
591-
/// }
592-
///
593-
/// impl<A, B, C> Enum<A, B, C> {
594-
/// #[project] // Nightly does not need a dummy attribute to the function.
595-
/// fn baz(self: Pin<&mut Self>) {
596-
/// #[project]
597-
/// match self.project() {
598-
/// Enum::Tuple(x, y) => {
599-
/// let _: Pin<&mut A> = x;
600-
/// let _: &mut B = y;
601-
/// }
602-
/// Enum::Struct { field } => {
603-
/// let _: &mut C = field;
604-
/// }
605-
/// Enum::Unit => {}
606-
/// }
607-
/// }
608-
/// }
609-
/// ```
610-
///
611-
/// # `impl` blocks
612-
///
613-
/// All methods and associated functions in `#[project] impl` block become
614-
/// methods of the projected type. If you want to implement methods on the
615-
/// original type, you need to create another (non-`#[project]`) `impl` block.
616-
///
617-
/// To call a method implemented in `#[project] impl` block, you need to first
618-
/// get the projected-type with `let this = self.project();`.
619-
///
620-
/// ## Examples
621-
///
622-
/// ```rust
623-
/// # #![allow(deprecated)]
624-
/// use pin_project::{pin_project, project};
625-
/// use std::pin::Pin;
626-
///
627-
/// #[pin_project]
628-
/// struct Foo<T, U> {
629-
/// #[pin]
630-
/// future: T,
631-
/// field: U,
632-
/// }
633-
///
634-
/// // impl for the original type
635-
/// impl<T, U> Foo<T, U> {
636-
/// fn bar(self: Pin<&mut Self>) {
637-
/// self.project().baz()
638-
/// }
639-
/// }
640-
///
641-
/// // impl for the projected type
642-
/// #[project]
643-
/// impl<T, U> Foo<T, U> {
644-
/// fn baz(self) {
645-
/// let Self { future, field } = self;
646-
///
647-
/// let _: Pin<&mut T> = future;
648-
/// let _: &mut U = field;
649-
/// }
650-
/// }
651-
/// ```
652-
///
653-
/// # `use` statements
654-
///
655-
/// ## Examples
656-
///
657-
/// ```rust
658-
/// # #![allow(deprecated)]
659-
/// # mod dox {
660-
/// use pin_project::pin_project;
661-
///
662-
/// #[pin_project]
663-
/// struct Foo<A> {
664-
/// #[pin]
665-
/// field: A,
666-
/// }
667-
///
668-
/// mod bar {
669-
/// use super::Foo;
670-
/// use pin_project::project;
671-
/// use std::pin::Pin;
672-
///
673-
/// #[project]
674-
/// use super::Foo;
675-
///
676-
/// #[project]
677-
/// fn baz<A>(foo: Pin<&mut Foo<A>>) {
678-
/// #[project]
679-
/// let Foo { field } = foo.project();
680-
/// let _: Pin<&mut A> = field;
681-
/// }
682-
/// }
683-
/// # }
684-
/// ```
685-
///
686-
/// [release note]: https://github.com/taiki-e/pin-project/releases/tag/v0.4.21
687-
#[cfg_attr(
688-
deprecated_proc_macro,
689-
deprecated(
690-
since = "0.4.21",
691-
note = "consider naming projected type by passing `project` \
692-
argument to #[pin_project] attribute instead, see release note \
693-
<https://github.com/taiki-e/pin-project/releases/tag/v0.4.21> \
694-
for details"
695-
)
696-
)]
697-
#[proc_macro_attribute]
698-
pub fn project(args: TokenStream, input: TokenStream) -> TokenStream {
699-
let input = syn::parse_macro_input!(input);
700-
project::attribute(&args.into(), input, ProjKind::Mutable).into()
701-
}
702-
703-
/// (deprecated) An attribute to provide way to refer to the projected type returned by
704-
/// `project_ref` method.
705-
///
706-
/// **This attribute is deprecated. Consider naming projected type by passing
707-
/// `project_ref` argument to `#[pin_project]` attribute instead, see [release note]
708-
/// for details**
709-
///
710-
/// This is the same as [`#[project]`][`project`] attribute except it refers to
711-
/// the projected type returned by the `project_ref` method.
712-
///
713-
/// See [`#[project]`][`project`] attribute for more details.
714-
///
715-
/// [release note]: https://github.com/taiki-e/pin-project/releases/tag/v0.4.21
716-
/// [`project`]: ./attr.project.html
717-
#[cfg_attr(
718-
deprecated_proc_macro,
719-
deprecated(
720-
since = "0.4.21",
721-
note = "consider naming projected type by passing `project_ref` \
722-
argument to #[pin_project] attribute instead, see release note \
723-
<https://github.com/taiki-e/pin-project/releases/tag/v0.4.21> \
724-
for details"
725-
)
726-
)]
727-
#[proc_macro_attribute]
728-
pub fn project_ref(args: TokenStream, input: TokenStream) -> TokenStream {
729-
let input = syn::parse_macro_input!(input);
730-
project::attribute(&args.into(), input, ProjKind::Immutable).into()
731-
}
732-
733-
/// (deprecated) An attribute to provide way to refer to the projected type returned by
734-
/// `project_replace` method.
735-
///
736-
/// **This attribute is deprecated. Consider naming projected type by passing
737-
/// `project_replace` argument to `#[pin_project]` attribute instead, see [release note]
738-
/// for details**
739-
///
740-
/// This is the same as [`#[project]`][`project`] attribute except it refers to
741-
/// the projected type returned by the `project_replace` method.
742-
///
743-
/// See [`#[project]`][`project`] attribute for more details.
744-
///
745-
/// [release note]: https://github.com/taiki-e/pin-project/releases/tag/v0.4.21
746-
/// [`project`]: ./attr.project.html
747-
#[cfg_attr(
748-
deprecated_proc_macro,
749-
deprecated(
750-
since = "0.4.21",
751-
note = "consider naming projected type by passing `project_replace` \
752-
argument to #[pin_project] attribute instead, see release note \
753-
<https://github.com/taiki-e/pin-project/releases/tag/v0.4.21> \
754-
for details"
755-
)
756-
)]
757-
#[proc_macro_attribute]
758-
pub fn project_replace(args: TokenStream, input: TokenStream) -> TokenStream {
759-
let input = syn::parse_macro_input!(input);
760-
project::attribute(&args.into(), input, ProjKind::Owned).into()
761-
}
762-
763531
// An internal helper macro. Not public API.
764532
#[doc(hidden)]
765533
#[proc_macro_derive(__PinProjectInternalDerive, attributes(pin))]

0 commit comments

Comments
 (0)