pin-project 1.0.4

A crate for safe and ergonomic pin-projection.
Documentation
# Changelog

All notable changes to this project will be documented in this file.

This project adheres to [Semantic Versioning](https://semver.org).

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## [Unreleased]

## [1.0.4] - 2021-01-09

- [Suppress `clippy::ref_option_ref` lint in generated code.]https://github.com/taiki-e/pin-project/pull/308

## [1.0.3] - 2021-01-05

- Exclude unneeded files from crates.io.

## [1.0.2] - 2020-11-18

- [Suppress `clippy::unknown_clippy_lints` lint in generated code.]https://github.com/taiki-e/pin-project/pull/303

## [1.0.1] - 2020-10-15

- [Fix warnings when `#[pin_project]` attribute used within `macro_rules!` macros.]https://github.com/taiki-e/pin-project/pull/298

## [1.0.0] - 2020-10-13

- [Remove deprecated `#[project]`, `#[project_ref]`, and `#[project_replace]` attributes.]https://github.com/taiki-e/pin-project/pull/265

  Name the projected type by passing an argument with the same name as the method to the `#[pin_project]` attribute instead:

  ```diff
  - #[pin_project]
  + #[pin_project(project = EnumProj)]
    enum Enum<T> {
        Variant(#[pin] T),
    }

  - #[project]
    fn func<T>(x: Pin<&mut Enum<T>>) {
  -     #[project]
        match x.project() {
  -         Enum::Variant(_) => { /* ... */ }
  +         EnumProj::Variant(_) => { /* ... */ }
        }
    }
  ```

- [Remove deprecated `Replace` argument from `#[pin_project]` attribute.]https://github.com/taiki-e/pin-project/pull/266 Use `project_replace` argument instead.

- [Optimize code generation when used on enums.]https://github.com/taiki-e/pin-project/pull/270

- [Raise the minimum supported Rust version of this crate from Rust 1.34 to Rust 1.37.]https://github.com/taiki-e/pin-project/pull/292

- Suppress `explicit_outlives_requirements`, `box_pointers`, `clippy::large_enum_variant`, `clippy::pattern_type_mismatch`, `clippy::implicit_return`, and `clippy::redundant_pub_crate` lints in generated code. ([#276]https://github.com/taiki-e/pin-project/pull/276, [#277]https://github.com/taiki-e/pin-project/pull/277, [#284]https://github.com/taiki-e/pin-project/pull/284)

- Diagnostic improvements.

Changes since the 1.0.0-alpha.1 release:

- [Fix drop order of pinned fields in project_replace]https://github.com/taiki-e/pin-project/pull/287

- Update minimal version of `syn` to 1.0.44

## [1.0.0-alpha.1] - 2020-09-22

- [Remove deprecated `#[project]`, `#[project_ref]`, and `#[project_replace]` attributes.]https://github.com/taiki-e/pin-project/pull/265

  Name the projected type by passing an argument with the same name as the method to the `#[pin_project]` attribute instead:

  ```diff
  - #[pin_project]
  + #[pin_project(project = EnumProj)]
    enum Enum<T> {
        Variant(#[pin] T),
    }

  - #[project]
    fn func<T>(x: Pin<&mut Enum<T>>) {
  -     #[project]
        match x.project() {
  -         Enum::Variant(_) => { /* ... */ }
  +         EnumProj::Variant(_) => { /* ... */ }
        }
    }
  ```

- [Remove deprecated `Replace` argument from `#[pin_project]` attribute.]https://github.com/taiki-e/pin-project/pull/266 Use `project_replace` argument instead.

- [Optimize code generation when used on enums.]https://github.com/taiki-e/pin-project/pull/270

- Suppress `explicit_outlives_requirements`, `box_pointers`, `clippy::large_enum_variant`, `clippy::pattern_type_mismatch`, and `clippy::implicit_return` lints in generated code. ([#276]https://github.com/taiki-e/pin-project/pull/276, [#277]https://github.com/taiki-e/pin-project/pull/277)

- Diagnostic improvements.

See also [tracking issue for 1.0 release](https://github.com/taiki-e/pin-project/issues/264).

## [0.4.27] - 2020-10-11

- Update minimal version of `syn` to 1.0.44

## [0.4.26] - 2020-10-04

- [Fix drop order of pinned fields in project_replace]https://github.com/taiki-e/pin-project/pull/287

## [0.4.25] - 2020-10-01

- Suppress `drop_bounds` lint, which will be added to rustc in the future. See [#272]https://github.com/taiki-e/pin-project/issues/272 for more details.

  (Note: 1.0.0-alpha.1 already contains this change.)

## [0.4.24] - 2020-09-26

- Fix compatibility of generated code with `forbid(future_incompatible)`

  Note: This does not guarantee compatibility with `forbid(future_incompatible)` in the future.
  If rustc adds a new lint, we may not be able to keep this.

## [0.4.23] - 2020-07-27

- [Fix compile error with `?Sized` type parameters.][263]

[263]: https://github.com/taiki-e/pin-project/pull/263

## [0.4.22] - 2020-06-14

- Documentation improvements.

## [0.4.21] - 2020-06-13

- [Deprecated `#[project]`, `#[project_ref]`, and `#[project_replace]` attributes due to some unfixable limitations.][244]

  Consider naming the projected type by passing an argument with the same name as the method to the `#[pin_project]` attribute instead.

  ```rust
  #[pin_project(project = EnumProj)]
  enum Enum<T> {
      Variant(#[pin] T),
  }

  fn func<T>(x: Pin<&mut Enum<T>>) {
      match x.project() {
          EnumProj::Variant(y) => {
              let _: Pin<&mut T> = y;
          }
      }
  }
  ```

  See [#225][225] for more details.

- [Support `Self` in fields and generics in type definitions.][245]

- [Fix errors involving *"`self` value is a keyword only available in methods with `self` parameter"* in apparently correct code.][250]

- Diagnostic improvements.

[225]: https://github.com/taiki-e/pin-project/pull/225
[244]: https://github.com/taiki-e/pin-project/pull/244
[245]: https://github.com/taiki-e/pin-project/pull/245
[250]: https://github.com/taiki-e/pin-project/pull/250

## [0.4.20] - 2020-06-07

- [You can now use project_replace argument without Replace argument.][243]
  This used to require you to specify both.

  ```diff
  - #[pin_project(Replace, project_replace = EnumProjOwn)]
  + #[pin_project(project_replace = EnumProjOwn)]
    enum Enum<T> {
        Variant(#[pin] T)
    }
  ```

- [Makes `project_replace` argument an alias for `Replace` argument so that it can be used without a value.][243]

  ```rust
  #[pin_project(project_replace)]
  enum Enum<T> {
      Variant(#[pin] T)
  }
  ```

  *The `Replace` argument will be deprecated in the future.*

- Suppress `unreachable_pub` lint in generated code.

[243]: https://github.com/taiki-e/pin-project/pull/243

## [0.4.19] - 2020-06-04

- [Fix `unused_results` lint in generated code.][239]

[239]: https://github.com/taiki-e/pin-project/pull/239

## [0.4.18] - 2020-06-04

- [Support `Self` in more syntax positions inside `#[pinned_drop]` impl.][230]

- [Suppress `clippy::type_repetition_in_bounds` and `clippy::used_underscore_binding` lints in generated code.][233]

- Documentation improvements.

- Diagnostic improvements.

[230]: https://github.com/taiki-e/pin-project/pull/230
[233]: https://github.com/taiki-e/pin-project/pull/233

## [0.4.17] - 2020-05-18

- [Support naming the projection types.][202]

  By passing an argument with the same name as the method to the attribute, you can name the projection type returned from the method:

  ```rust
  #[pin_project(project = EnumProj)]
  enum Enum<T> {
      Variant(#[pin] T),
  }

  fn func<T>(x: Pin<&mut Enum<T>>) {
      match x.project() {
          EnumProj::Variant(y) => {
              let _: Pin<&mut T> = y;
          }
      }
  }
  ```

[202]: https://github.com/taiki-e/pin-project/pull/202

## [0.4.16] - 2020-05-11

- [Fixed an issue that users can call internal function generated by `#[pinned_drop]`.][223]

[223]: https://github.com/taiki-e/pin-project/pull/223

## [0.4.15] - 2020-05-10

- [`#[project]` attribute can now handle all project\* attributes in that scope with one wrapper attribute.][220]

[220]: https://github.com/taiki-e/pin-project/pull/220

## [0.4.14] - 2020-05-09

- [Added `!Unpin` option to `#[pin_project]` attribute for guarantee the type is `!Unpin`.][219]

  ```rust
  #[pin_project(!Unpin)]
  struct Struct<T, U> {
      field: T,
  }
  ```

  This is equivalent to use `#[pin]` attribute for `PhantomPinned` field.

  ```rust
  #[pin_project]
  struct Struct<T, U> {
      field: T,
      #[pin] // Note that using `PhantomPinned` without `#[pin]` attribute has no effect.
      _pin: PhantomPinned,
  }
  ```

  *[Note: This raises the minimum supported Rust version of this crate from Rust 1.33 to Rust 1.34.]https://github.com/taiki-e/pin-project/pull/219#pullrequestreview-408644187*

- [Fixed an issue where duplicate `#[project]` attributes were ignored.][218]

- [Suppress `single_use_lifetimes` lint in generated code.][217]

- [Support overlapping lifetime names in HRTB.][217]

- [Hide generated items from --document-private-items.][211] See [#211][211] for details.

- Documentation improvements.

[211]: https://github.com/taiki-e/pin-project/pull/211
[217]: https://github.com/taiki-e/pin-project/pull/217
[218]: https://github.com/taiki-e/pin-project/pull/218
[219]: https://github.com/taiki-e/pin-project/pull/219

## [0.4.13] - 2020-05-07

- [Fixed a regression in 0.4.11.][207]

  Changes from [0.4.10]https://github.com/taiki-e/pin-project/releases/tag/v0.4.10 and [0.4.12]https://github.com/taiki-e/pin-project/releases/tag/v0.4.12:

  - [Fixed an issue that `#[project]` on non-statement expression does not work without unstable features.][197]

  - [Support overwriting the name of core crate.][199]

  - [Suppress `clippy::needless_pass_by_value` lint in generated code of `#[pinned_drop]`.][200]

  - Documentation improvements.

  - Diagnostic improvements.

[207]: https://github.com/taiki-e/pin-project/pull/207

## [0.4.12] - 2020-05-07

- A release to avoid [a regression in 0.4.11][206]. No code changes from [0.4.10]https://github.com/taiki-e/pin-project/releases/tag/v0.4.10.

[206]: https://github.com/taiki-e/pin-project/issues/206

## [0.4.11] - 2020-05-07

**Note: This release has been yanked.** See [#206][206] for details.

- [Fixed an issue that `#[project]` on non-statement expression does not work without unstable features.][197]

- [Support overwriting the name of core crate.][199]

- [Suppress `clippy::needless_pass_by_value` lint in generated code of `#[pinned_drop]`.][200]

- Documentation improvements.

- Diagnostic improvements.

[197]: https://github.com/taiki-e/pin-project/pull/197
[199]: https://github.com/taiki-e/pin-project/pull/199
[200]: https://github.com/taiki-e/pin-project/pull/200

## [0.4.10] - 2020-05-04

- [Added `project_replace` method and `#[project_replace]` attribute.][194]
  `project_replace` method is optional and can be enabled by passing the `Replace` argument to `#[pin_project]` attribute.
  See [the documentation]https://docs.rs/pin-project/0.4/pin_project/attr.pin_project.html#project_replace for more details.

- [Support `Self` and `self` in more syntax positions inside `#[pinned_drop]` impl.][190]

- [Hided all generated items except for projected types from calling code.][192] See [#192][192] for details.

[190]: https://github.com/taiki-e/pin-project/pull/190
[192]: https://github.com/taiki-e/pin-project/pull/192
[194]: https://github.com/taiki-e/pin-project/pull/194

## [0.4.9] - 2020-04-14

- [Fixed lifetime inference error when associated types are used in fields.][188]

- [Fixed compile error with tuple structs with `where` clauses.][186]

- [`#[project]` attribute can now be used for `if let` expressions.][181]

[181]: https://github.com/taiki-e/pin-project/pull/181
[186]: https://github.com/taiki-e/pin-project/pull/186
[188]: https://github.com/taiki-e/pin-project/pull/188

## [0.4.8] - 2020-01-27

- [Ensured that users cannot implement `PinnedDrop` without proper attribute argument.][180]

- [Fixed use of `Self` in expression position inside `#[pinned_drop]` impl.][177]

[177]: https://github.com/taiki-e/pin-project/pull/180
[180]: https://github.com/taiki-e/pin-project/pull/180

## [0.4.7] - 2020-01-20

- [Fixed support for lifetime bounds.][176]

[176]: https://github.com/taiki-e/pin-project/pull/176

## [0.4.6] - 2019-11-20

- [Fixed compile error when there is `Self` in the where clause.][169]

[169]: https://github.com/taiki-e/pin-project/pull/169

## [0.4.5] - 2019-10-21

- [Fixed compile error with `dyn` types.][158]

[158]: https://github.com/taiki-e/pin-project/pull/158

## [0.4.4] - 2019-10-17

- [Fixed an issue where `PinnedDrop` implementations can call unsafe code without an unsafe block.][149]

[149]: https://github.com/taiki-e/pin-project/pull/149

## [0.4.3] - 2019-10-15

**Note: This release has been yanked.** See [#148] for details.

- [`#[pin_project]` can now interoperate with `#[cfg_attr()]`.][135]

- [`#[pin_project]` can now interoperate with `#[cfg()]` on tuple structs and tuple variants.][135]

- [Fixed support for DSTs(Dynamically Sized Types) on `#[pin_project(UnsafeUnpin)]`][120]

- Diagnostic improvements.

[#148]: https://github.com/taiki-e/pin-project/pull/148
[120]: https://github.com/taiki-e/pin-project/pull/120
[135]: https://github.com/taiki-e/pin-project/pull/135

## [0.4.2] - 2019-09-29

**Note: This release has been yanked.** See [#148] for details.

- [Fixed support for DSTs(Dynamically Sized Types).][113]

[113]: https://github.com/taiki-e/pin-project/pull/113

## [0.4.1] - 2019-09-26

**Note: This release has been yanked.** See [#148] for details.

- [Fixed an issue that caused an error when using `#[pin_project]` on a type that has `#[pin]` + `!Unpin` field with no generics or lifetime.][111]

[111]: https://github.com/taiki-e/pin-project/pull/111

## [0.4.0] - 2019-09-25

**Note: This release has been yanked.** See [#148] for details.

- [**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]

- [Removed "project_attr" feature and always enable `#[project]` attribute.][94]

- [Removed "renamed" feature.][100]

- [`#[project]` attribute can now be used for `use` statements.][85]

- [Added `project_ref` method and `#[project_ref]` attribute.][93]

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

[85]: https://github.com/taiki-e/pin-project/pull/85
[90]: https://github.com/taiki-e/pin-project/pull/90
[93]: https://github.com/taiki-e/pin-project/pull/93
[94]: https://github.com/taiki-e/pin-project/pull/94
[96]: https://github.com/taiki-e/pin-project/pull/96
[100]: https://github.com/taiki-e/pin-project/pull/100

## [0.4.0-alpha.11] - 2019-09-11

- [Changed #[pinned_drop] to trait implementation.][86]

  ```rust
  #[pinned_drop]
  impl<T> PinnedDrop for Foo<'_, T> {
      fn drop(mut self: Pin<&mut Self>) {
          **self.project().was_dropped = true;
      }
  }
  ```

- Added some examples and generated code.

- Diagnostic improvements.

[86]: https://github.com/taiki-e/pin-project/pull/86

## [0.4.0-alpha.10] - 2019-09-07

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

- Documentation improvements.

[77]: https://github.com/taiki-e/pin-project/pull/77

## [0.4.0-alpha.9] - 2019-09-05

- [Added 'project_into' method to `#[pin_project]` types][69]. This can be useful when returning a pin projection from a method.

  ```rust
  fn get_pin_mut(self: Pin<&mut Self>) -> Pin<&mut T> {
      self.project_into().pinned
  }
  ```

- [Prevented UnpinStruct from appearing in the document by default.][71] See [#71][71] for more details.

[69]: https://github.com/taiki-e/pin-project/pull/69
[71]: https://github.com/taiki-e/pin-project/pull/69

## [0.4.0-alpha.8] - 2019-09-03

- [Improved document of generated code.][62]. Also added an option to control the document of generated code. See [#62][62] for more details.

- [Diagnostic improvements.][61]

[61]: https://github.com/taiki-e/pin-project/pull/61
[62]: https://github.com/taiki-e/pin-project/pull/62

## [0.4.0-alpha.7] - 2019-09-02

- [Suppress `dead_code` lint in generated types.][57]

[57]: https://github.com/taiki-e/pin-project/pull/57

## [0.4.0-alpha.6] - 2019-09-01

- [Allowed using `#[pin_project]` type with private field types][53]

[53]: https://github.com/taiki-e/pin-project/pull/53

## [0.4.0-alpha.5] - 2019-08-24

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

[51]: https://github.com/taiki-e/pin-project/pull/51

## [0.4.0-alpha.4] - 2019-08-23

- Suppress `clippy::drop_bounds` lint in generated code.

## [0.4.0-alpha.3] - 2019-08-23

- [Changed `project` method generated by `#[pin_project]` attribute to take an `&mut Pin<&mut Self>` argument.][47]

- [`#[project]` attribute can now be used for impl blocks.][46]

- [`#[pin_project]` attribute can now detect that the type used does not have its own drop implementation without actually implementing drop.][48] This removed some restrictions.

[46]: https://github.com/taiki-e/pin-project/pull/46
[47]: https://github.com/taiki-e/pin-project/pull/47
[48]: https://github.com/taiki-e/pin-project/pull/48

## [0.4.0-alpha.2] - 2019-08-13

- Updated `proc-macro2`, `syn`, and `quote` to 1.0.

## [0.4.0-alpha.1] - 2019-08-11

- **Pin projection has become a safe operation.**

- `#[unsafe_project]` has been replaced with `#[pin_project]`.

- The `Unpin` argument has been removed - an `Unpin` impl is now generated by default.

- Drop impls must be specified with `#[pinned_drop]` instead of via a normal `Drop` impl.

- `Unpin` impls must be specified with an impl of `UnsafeUnpin`, instead of implementing the normal `Unpin` trait.

- Made `#[project]` attribute disabled by default.

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

- Updated `proc-macro2`, `syn`, and `quote` to 1.0.

## [0.3.4] - 2019-07-21

- Diagnostic improvements.

## [0.3.3] - 2019-07-15

**Note: This release has been yanked.** See [#16] for details.

- Diagnostic improvements.

[#16]: https://github.com/taiki-e/pin-project/issues/16

## [0.3.2] - 2019-03-30

- Avoided suffixes on tuple index.

## [0.3.1] - 2019-03-02

- Documentation improvements.

- Updated minimum `syn` version to 0.15.22.

## [0.3.0] - 2019-02-20

- Removed `unsafe_fields` attribute.

- Removed `unsafe_variants` attribute.

## [0.2.2] - 2019-02-20

- Fixed a bug that generates incorrect code for the some structures with trait bounds on type generics.

## [0.2.1] - 2019-02-20

- Fixed a bug that generates incorrect code for the structures with where clause and associated type fields.

## [0.2.0] - 2019-02-11

- Made `unsafe_fields` optional.

- Documentation improvements.

## [0.1.8] - 2019-02-02

- Added the feature to create projected enums to `unsafe_project`.

- Added `project` attribute to support pattern matching.

## [0.1.7] - 2019-01-19

- Fixed documentation.

## [0.1.6] - 2019-01-19

- `unsafe_fields` can now opt-out.

- Added `unsafe_variants` attribute. This attribute is available if pin-project is built with the "unsafe_variants" feature.

## [0.1.5] - 2019-01-17

- Added support for tuple struct to `unsafe_project`.

## [0.1.4] - 2019-01-12

- Added options for automatically implementing `Unpin` to both `unsafe_project` and `unsafe_fields`.

## [0.1.3] - 2019-01-11

- Fixed dependencies.

- Added `unsafe_fields` attribute.

## [0.1.2] - 2019-01-09

- Documentation improvements.

## [0.1.1] - 2019-01-08

- Renamed from `unsafe_pin_project` to `unsafe_project`.

## [0.1.0] - 2019-01-08

**Note: This release has been yanked.**

Initial release

[Unreleased]: https://github.com/taiki-e/pin-project/compare/v1.0.4...HEAD
[1.0.4]: https://github.com/taiki-e/pin-project/compare/v1.0.3...v1.0.4
[1.0.3]: https://github.com/taiki-e/pin-project/compare/v1.0.2...v1.0.3
[1.0.2]: https://github.com/taiki-e/pin-project/compare/v1.0.1...v1.0.2
[1.0.1]: https://github.com/taiki-e/pin-project/compare/v1.0.0...v1.0.1
[1.0.0]: https://github.com/taiki-e/pin-project/compare/v1.0.0-alpha.1...v1.0.0
[1.0.0-alpha.1]: https://github.com/taiki-e/pin-project/compare/v0.4.23...v1.0.0-alpha.1
[0.4.27]: https://github.com/taiki-e/pin-project/compare/v0.4.26...v0.4.27
[0.4.26]: https://github.com/taiki-e/pin-project/compare/v0.4.25...v0.4.26
[0.4.25]: https://github.com/taiki-e/pin-project/compare/v0.4.24...v0.4.25
[0.4.24]: https://github.com/taiki-e/pin-project/compare/v0.4.23...v0.4.24
[0.4.23]: https://github.com/taiki-e/pin-project/compare/v0.4.22...v0.4.23
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[0.4.20]: https://github.com/taiki-e/pin-project/compare/v0.4.19...v0.4.20
[0.4.19]: https://github.com/taiki-e/pin-project/compare/v0.4.18...v0.4.19
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[0.4.3]: https://github.com/taiki-e/pin-project/compare/v0.4.2...v0.4.3
[0.4.2]: https://github.com/taiki-e/pin-project/compare/v0.4.1...v0.4.2
[0.4.1]: https://github.com/taiki-e/pin-project/compare/v0.4.0...v0.4.1
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[0.4.0-beta.1]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.11...v0.4.0-beta.1
[0.4.0-alpha.11]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.10...v0.4.0-alpha.11
[0.4.0-alpha.10]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.9...v0.4.0-alpha.10
[0.4.0-alpha.9]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.8...v0.4.0-alpha.9
[0.4.0-alpha.8]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.7...v0.4.0-alpha.8
[0.4.0-alpha.7]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.6...v0.4.0-alpha.7
[0.4.0-alpha.6]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.5...v0.4.0-alpha.6
[0.4.0-alpha.5]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.4...v0.4.0-alpha.5
[0.4.0-alpha.4]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.3...v0.4.0-alpha.4
[0.4.0-alpha.3]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.2...v0.4.0-alpha.3
[0.4.0-alpha.2]: https://github.com/taiki-e/pin-project/compare/v0.4.0-alpha.1...v0.4.0-alpha.2
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[0.3.4]: https://github.com/taiki-e/pin-project/compare/v0.3.3...v0.3.4
[0.3.3]: https://github.com/taiki-e/pin-project/compare/v0.3.2...v0.3.3
[0.3.2]: https://github.com/taiki-e/pin-project/compare/v0.3.1...v0.3.2
[0.3.1]: https://github.com/taiki-e/pin-project/compare/v0.3.0...v0.3.1
[0.3.0]: https://github.com/taiki-e/pin-project/compare/v0.2.2...v0.3.0
[0.2.2]: https://github.com/taiki-e/pin-project/compare/v0.2.1...v0.2.2
[0.2.1]: https://github.com/taiki-e/pin-project/compare/v0.2.0...v0.2.1
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[0.1.8]: https://github.com/taiki-e/pin-project/compare/v0.1.7...v0.1.8
[0.1.7]: https://github.com/taiki-e/pin-project/compare/v0.1.6...v0.1.7
[0.1.6]: https://github.com/taiki-e/pin-project/compare/v0.1.5...v0.1.6
[0.1.5]: https://github.com/taiki-e/pin-project/compare/v0.1.4...v0.1.5
[0.1.4]: https://github.com/taiki-e/pin-project/compare/v0.1.3...v0.1.4
[0.1.3]: https://github.com/taiki-e/pin-project/compare/v0.1.2...v0.1.3
[0.1.2]: https://github.com/taiki-e/pin-project/compare/v0.1.1...v0.1.2
[0.1.1]: https://github.com/taiki-e/pin-project/compare/v0.1.0...v0.1.1
[0.1.0]: https://github.com/taiki-e/pin-project/releases/tag/v0.1.0