Merge #109

109: Release 0.4.0 r=taiki-e a=taiki-e

cc #21

### Changes since the latest 0.3 release:

* **Pin projection has become a safe operation.** In the absence of other unsafe code that you write, it is impossible to cause undefined behavior. (#18)

* `#[unsafe_project]` attribute has been replaced with `#[pin_project]` attribute. (#18, #33)

* The `Unpin` argument has been removed - an `Unpin` impl is now generated by default. (#18)

* Drop impls must be specified with `#[pinned_drop]` instead of via a normal `Drop` impl. (#18, #33, #86)

* `Unpin` impls must be specified with an impl of `UnsafeUnpin`, instead of implementing the normal `Unpin` trait. (#18)

* `#[pin_project]` attribute now determines the visibility of the projection type/method is based on the original type. (#96)

* `#[pin_project]` can now be used for public type with private field types. (#53)

* `#[pin_project]` can now interoperate with `#[cfg()]`. (#77)

* Added `project_ref` method to `#[pin_project]` types. (#93)

* Added `#[project_ref]` attribute. (#93)

* Removed "project_attr" feature and always enable `#[project]` attribute. (#94)

* `#[project]` attribute can now be used for `impl` blocks. (#46)

* `#[project]` attribute can now be used for `use` statements. (#85)

* `#[project]` attribute now supports `match` expressions at the position of the initializer expression of `let` expressions. (#51)

### Changes since the 0.4.0-beta.1 release:

* Fixed an issue that caused an error when using `#[pin_project(UnsafeUnpin)]` and not providing a manual `UnsafeUnpin` implementation on a type with no generics or lifetime. (#107)


Co-authored-by: Taiki Endo <te316e89@gmail.com>

CHANGELOG.md

@@ -1,5 +1,43 @@
 # Unreleased
 
+# 0.4.0 - 2019-09-25
+
+* [**Pin projection has become a safe operation.**][18] In the absence of other unsafe code that you write, it is impossible to cause undefined behavior.
+
+* `#[unsafe_project]` attribute has been replaced with `#[pin_project]` attribute. ([#18][18], [#33][33])
+
+* [The `Unpin` argument has been removed - an `Unpin` impl is now generated by default.][18]
+
+* Drop impls must be specified with `#[pinned_drop]` instead of via a normal `Drop` impl. ([#18][18], [#33][33], [#86][86])
+
+* [`Unpin` impls must be specified with an impl of `UnsafeUnpin`, instead of implementing the normal `Unpin` trait.][18]
+
+* [`#[pin_project]` attribute now determines the visibility of the projection type/method is based on the original type.][96]
+
+* [`#[pin_project]` can now be used for public type with private field types.][53]
+
+* [`#[pin_project]` can now interoperate with `#[cfg()]`.][77]
+
+* [Added `project_ref` method to `#[pin_project]` types.][93]
+
+* [Added `#[project_ref]` attribute.][93]
+
+* [Removed "project_attr" feature and always enable `#[project]` attribute.][94]
+
+* [`#[project]` attribute can now be used for `impl` blocks.][46]
+
+* [`#[project]` attribute can now be used for `use` statements.][85]
+
+* [`#[project]` attribute now supports `match` expressions at the position of the initializer expression of `let` expressions.][51]
+
+Changes since the 0.4.0-beta.1 release:
+
+* [Fixed an issue that caused an error when using `#[pin_project(UnsafeUnpin)]` and not providing a manual `UnsafeUnpin` implementation on a type with no generics or lifetime.][107]
+
+[18]: https://github.com/taiki-e/pin-project/pull/18
+[33]: https://github.com/taiki-e/pin-project/pull/107
+[107]: https://github.com/taiki-e/pin-project/pull/107
+
 # 0.4.0-beta.1 - 2019-09-21
 
 * [Changed the argument type of project method back to `self: Pin<&mut Self>`.][90]
@@ -42,7 +80,7 @@
 
 # 0.4.0-alpha.10 - 2019-09-07
 
-* [pin-project can now interoperate with `#[cfg()]`.][77]
+* [`#[pin_project]` can now interoperate with `#[cfg()]`.][77]
 
 * Improved documentation.
 
@@ -123,7 +161,9 @@
 
 * Made `#[project]` attribute disabled by default.
 
-See also [tracking issue for 0.4 release](https://github.com/taiki-e/pin-project/issues/21).
+See also [tracking issue for 0.4 release][21].
+
+[21]: https://github.com/taiki-e/pin-project/issues/21
 
 # 0.3.5 - 2019-08-14
 

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pin-project"
-version = "0.4.0-beta.1"
+version = "0.4.0"
 authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2018"
 license = "Apache-2.0/MIT"
@@ -20,7 +20,7 @@ all-features = true
 members = ["pin-project-internal"]
 
 [dependencies]
-pin-project-internal = { version = "=0.4.0-beta.1", path = "pin-project-internal", default-features = false }
+pin-project-internal = { version = "=0.4.0", path = "pin-project-internal", default-features = false }
 
 [dev-dependencies]
 compiletest = { version = "0.3.21", package = "compiletest_rs", features = ["stable", "tmp"] }

README.md

@@ -29,7 +29,7 @@ Add this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-pin-project = "0.4.0-beta.1"
+pin-project = "0.4"
 ```
 
 The current pin-project requires Rust 1.33 or later.
@@ -64,7 +64,7 @@ See [API documentation][docs-url] for more details.
 
 Also, there are examples and generated code of each feature in [examples](examples/README.md) directory.
 
-[`pin_project`]: https://docs.rs/pin-project-internal/0.4.0-beta.1/pin_project_internal/attr.pin_project.html
+[`pin_project`]: https://docs.rs/pin-project-internal/0.4.0/pin_project_internal/attr.pin_project.html
 
 ## License
 

pin-project-internal/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pin-project-internal"
-version = "0.4.0-beta.1"
+version = "0.4.0"
 authors = ["Taiki Endo <te316e89@gmail.com>"]
 edition = "2018"
 license = "Apache-2.0/MIT"
@@ -24,4 +24,4 @@ quote = "1.0"
 syn = { version = "1.0", features = ["full", "visit-mut"] }
 
 [dev-dependencies]
-pin-project = { version = "0.4.0-beta.1", path = ".." }
+pin-project = { version = "0.4.0", path = ".." }

pin-project-internal/src/lib.rs

@@ -1,7 +1,7 @@
 //! An internal crate to support pin_project - **do not use directly**
 
 #![recursion_limit = "256"]
-#![doc(html_root_url = "https://docs.rs/pin-project-internal/0.4.0-beta.1")]
+#![doc(html_root_url = "https://docs.rs/pin-project-internal/0.4.0")]
 #![doc(test(
     no_crate_inject,
     attr(deny(warnings, rust_2018_idioms, single_use_lifetimes), allow(dead_code))
@@ -61,7 +61,7 @@ use utils::{Immutable, Mutable};
 /// it is impossible to cause undefined behavior with this attribute.
 ///
 /// This is accomplished by enforcing the four requirements for pin projection
-/// stated in [the Rust documentation](https://doc.rust-lang.org/beta/std/pin/index.html#projections-and-structural-pinning):
+/// stated in [the Rust documentation](https://doc.rust-lang.org/nightly/std/pin/index.html#projections-and-structural-pinning):
 ///
 /// 1. The struct must only be Unpin if all the structural fields are Unpin.
 ///
@@ -313,7 +313,7 @@ use utils::{Immutable, Mutable};
 /// [`Pin::as_mut`]: core::pin::Pin::as_mut
 /// [`Pin::set`]: core::pin::Pin::set
 /// [`drop`]: Drop::drop
-/// [`UnsafeUnpin`]: https://docs.rs/pin-project/0.4.0-beta.1/pin_project/trait.UnsafeUnpin.html
+/// [`UnsafeUnpin`]: https://docs.rs/pin-project/0.4.0/pin_project/trait.UnsafeUnpin.html
 /// [`project`]: ./attr.project.html
 /// [`project_ref`]: ./attr.project_ref.html
 /// [`pinned_drop`]: ./attr.pinned_drop.html

src/lib.rs

@@ -34,13 +34,13 @@
 //!
 //! There are examples and generated code of each feature in [examples](https://github.com/taiki-e/pin-project/blob/master/examples/README.md) directory.
 //!
-//! [`pin_project`]: https://docs.rs/pin-project-internal/0.4.0-beta.1/pin_project_internal/attr.pin_project.html
-//! [`pinned_drop`]: https://docs.rs/pin-project-internal/0.4.0-beta.1/pin_project_internal/attr.pinned_drop.html
-//! [`project`]: https://docs.rs/pin-project-internal/0.4.0-beta.1/pin_project_internal/attr.project.html
+//! [`pin_project`]: https://docs.rs/pin-project-internal/0.4.0/pin_project_internal/attr.pin_project.html
+//! [`pinned_drop`]: https://docs.rs/pin-project-internal/0.4.0/pin_project_internal/attr.pinned_drop.html
+//! [`project`]: https://docs.rs/pin-project-internal/0.4.0/pin_project_internal/attr.project.html
 
 #![no_std]
 #![recursion_limit = "256"]
-#![doc(html_root_url = "https://docs.rs/pin-project/0.4.0-beta.1")]
+#![doc(html_root_url = "https://docs.rs/pin-project/0.4.0")]
 #![doc(test(
     no_crate_inject,
     attr(deny(warnings, rust_2018_idioms, single_use_lifetimes), allow(dead_code))
@@ -78,7 +78,7 @@ pub use pin_project_internal::project_ref;
 ///
 /// However, things change if you want to provide a custom [`Unpin`] impl
 /// for your `#[pin_project]` type. As stated in [the Rust
-/// documentation](https://doc.rust-lang.org/beta/std/pin/index.html#projections-and-structural-pinning),
+/// documentation](https://doc.rust-lang.org/nightly/std/pin/index.html#projections-and-structural-pinning),
 /// you must be sure to only implement [`Unpin`] when all of your `#[pin]` fields (i.e. struturally
 /// pinend fields) are also [`Unpin`].
 ///
@@ -116,7 +116,7 @@ pub use pin_project_internal::project_ref;
 /// ```
 ///
 /// [`PhantomPinned`]: core::marker::PhantomPinned
-/// [`pin_project`]: https://docs.rs/pin-project-internal/0.4.0-beta.1/pin_project_internal/attr.pin_project.html
+/// [`pin_project`]: https://docs.rs/pin-project-internal/0.4.0/pin_project_internal/attr.pin_project.html
 #[allow(unsafe_code)]
 pub unsafe trait UnsafeUnpin {}
 

tests/cfg.rs

@@ -2,7 +2,7 @@
 #![warn(rust_2018_idioms, single_use_lifetimes)]
 #![allow(dead_code)]
 
-// Refs: https://doc.rust-lang.org/reference/attributes.html
+// Refs: https://doc.rust-lang.org/nightly/reference/attributes.html
 
 use pin_project::pin_project;
 use std::marker::PhantomPinned;