diff options
| author | Joel Galenson <jgalenson@google.com> | 2021-06-18 22:17:35 +0000 |
|---|---|---|
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2021-06-18 22:17:35 +0000 |
| commit | b0a43de1c977b8389ed1259fb0d8c76365708cd4 (patch) | |
| tree | 1d4709fcc49018a9d9d0a598bad69a057458d5ee | |
| parent | 7b1fc09d6007ef0fab583e0ff2f17b62627cc6a8 (diff) | |
| parent | a4baf6861028bc81774b53cbc531b5034538ea2b (diff) | |
| download | pin-project-lite-b0a43de1c977b8389ed1259fb0d8c76365708cd4.tar.gz | |
Merge "Upgrade rust/crates/pin-project-lite to 0.2.6" am: 66d5a6ad15 am: a4baf68610
Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/pin-project-lite/+/1713088
Change-Id: I8db7e998657f2363123566e37e622a58ccb00554
69 files changed, 2001 insertions, 2013 deletions
diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json index 32ae14a..d25aa1d 100644 --- a/.cargo_vcs_info.json +++ b/.cargo_vcs_info.json @@ -1,5 +1,5 @@ { "git": { - "sha1": "416be96f7777862c68b567c92a91887f69a8c2b3" + "sha1": "bd5adc2edab1d9d2d8ff2010bec8fc4e80eff49a" } } diff --git a/.clippy.toml b/.clippy.toml deleted file mode 100644 index 983eb57..0000000 --- a/.clippy.toml +++ /dev/null @@ -1 +0,0 @@ -msrv = "1.37" diff --git a/.editorconfig b/.editorconfig deleted file mode 100644 index a73a88d..0000000 --- a/.editorconfig +++ /dev/null @@ -1,20 +0,0 @@ -# EditorConfig configuration -# https://editorconfig.org - -root = true - -[*] -charset = utf-8 -end_of_line = lf -indent_size = 4 -indent_style = space -insert_final_newline = true -trim_trailing_whitespace = true - -[*.{json,yml,md}] -indent_size = 2 - -[*.sh] -indent_size = 2 -binary_next_line = true -switch_case_indent = true diff --git a/.gitattributes b/.gitattributes deleted file mode 100644 index 6313b56..0000000 --- a/.gitattributes +++ /dev/null @@ -1 +0,0 @@ -* text=auto eol=lf diff --git a/.rustfmt.toml b/.rustfmt.toml deleted file mode 100644 index 6604f5c..0000000 --- a/.rustfmt.toml +++ /dev/null @@ -1,34 +0,0 @@ -# Rustfmt configuration -# https://github.com/rust-lang/rustfmt/blob/HEAD/Configurations.md - -# This is required for bug-fixes, which technically can't be made to the stable -# first version. -# This is unstable (tracking issue: https://github.com/rust-lang/rustfmt/issues/3383). -version = "Two" -# Rustfmt cannot format long lines inside macros, but this option detects this. -# This is unstable (tracking issue: https://github.com/rust-lang/rustfmt/issues/3391) -error_on_line_overflow = true - -# Override the default formatting style. -# See https://internals.rust-lang.org/t/running-rustfmt-on-rust-lang-rust-and-other-rust-lang-repositories/8732/81. -use_small_heuristics = "Max" -# See https://github.com/rust-dev-tools/fmt-rfcs/issues/149. -# This is unstable (tracking issue: https://github.com/rust-lang/rustfmt/issues/3370) -overflow_delimited_expr = true - -# Apply rustfmt to more places. -# This is unstable (tracking issue: https://github.com/rust-lang/rustfmt/issues/3362). -merge_imports = true -# This is unstable (tracking issue: https://github.com/rust-lang/rustfmt/issues/3348). -format_code_in_doc_comments = true - -# Automatically fix deprecated style. -use_field_init_shorthand = true -use_try_shorthand = true - -# Set the default settings again to always apply the proper formatting without -# being affected by the editor settings. -edition = "2018" -hard_tabs = false -newline_style = "Unix" -tab_spaces = 4 diff --git a/CHANGELOG.md b/CHANGELOG.md index e9d1276..666dd6b 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -10,24 +10,42 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com ## [Unreleased] +## [0.2.6] - 2021-03-04 + +- [Support item attributes in any order.](https://github.com/taiki-e/pin-project-lite/pull/57) + +## [0.2.5] - 2021-03-02 + +- [Prepare for removal of `safe_packed_borrows` lint.](https://github.com/taiki-e/pin-project-lite/pull/55) See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + ## [0.2.4] - 2021-01-11 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Add `project_replace`.](https://github.com/taiki-e/pin-project-lite/pull/43) ## [0.2.3] - 2021-01-09 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Suppress `clippy::unknown_clippy_lints` lint in generated code.](https://github.com/taiki-e/pin-project-lite/pull/47) ## [0.2.2] - 2021-01-09 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Suppress `clippy::ref_option_ref` lint in generated code.](https://github.com/taiki-e/pin-project-lite/pull/45) ## [0.2.1] - 2021-01-05 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - Exclude unneeded files from crates.io. ## [0.2.0] - 2020-11-13 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [`pin_project!` macro now supports enums.](https://github.com/taiki-e/pin-project-lite/pull/28) To use `pin_project!` on enums, you need to name the projection type returned from the method. @@ -77,22 +95,34 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com } ``` +## [0.1.12] - 2021-03-02 + +- [Prepare for removal of `safe_packed_borrows` lint.](https://github.com/taiki-e/pin-project-lite/pull/55) See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + ## [0.1.11] - 2020-10-20 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - Suppress `clippy::redundant_pub_crate` lint in generated code. - Documentation improvements. ## [0.1.10] - 2020-10-01 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - Suppress `drop_bounds` lint, which will be added to rustc in the future. See [taiki-e/pin-project#272](https://github.com/taiki-e/pin-project/issues/272) for more details. ## [0.1.9] - 2020-09-29 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Fix trailing comma support in generics.](https://github.com/taiki-e/pin-project-lite/pull/32) ## [0.1.8] - 2020-09-26 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Fix compatibility of generated code with `forbid(future_incompatible)`.](https://github.com/taiki-e/pin-project-lite/pull/30) Note: This does not guarantee compatibility with `forbid(future_incompatible)` in the future. @@ -100,6 +130,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com ## [0.1.7] - 2020-06-04 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Support `?Sized` bounds in where clauses.](https://github.com/taiki-e/pin-project-lite/pull/22) - [Fix lifetime inference error when an associated type is used in fields.](https://github.com/taiki-e/pin-project-lite/pull/20) @@ -110,40 +142,57 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com ## [0.1.6] - 2020-05-31 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Support lifetime bounds in where clauses.](https://github.com/taiki-e/pin-project-lite/pull/18) - Documentation improvements. ## [0.1.5] - 2020-05-07 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Support overwriting the name of `core` crate.](https://github.com/taiki-e/pin-project-lite/pull/14) ## [0.1.4] - 2020-01-20 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Support ?Sized bounds in generic parameters.](https://github.com/taiki-e/pin-project-lite/pull/9) ## [0.1.3] - 2020-01-20 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Support lifetime bounds in generic parameters.](https://github.com/taiki-e/pin-project-lite/pull/7) ## [0.1.2] - 2020-01-05 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [Support recognizing default generic parameters.](https://github.com/taiki-e/pin-project-lite/pull/6) ## [0.1.1] - 2019-11-15 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + - [`pin_project!` macro now determines the visibility of the projection type/method is based on the original type.](https://github.com/taiki-e/pin-project-lite/pull/5) ## [0.1.0] - 2019-10-22 +**Note: This release has been yanked.** See [#55](https://github.com/taiki-e/pin-project-lite/pull/55) for details. + Initial release -[Unreleased]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.4...HEAD +[Unreleased]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.6...HEAD +[0.2.6]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.5...v0.2.6 +[0.2.5]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.4...v0.2.5 [0.2.4]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.3...v0.2.4 [0.2.3]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.2...v0.2.3 [0.2.2]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.1...v0.2.2 [0.2.1]: https://github.com/taiki-e/pin-project-lite/compare/v0.2.0...v0.2.1 [0.2.0]: https://github.com/taiki-e/pin-project-lite/compare/v0.1.11...v0.2.0 +[0.1.12]: https://github.com/taiki-e/pin-project-lite/compare/v0.1.11...v0.1.12 [0.1.11]: https://github.com/taiki-e/pin-project-lite/compare/v0.1.10...v0.1.11 [0.1.10]: https://github.com/taiki-e/pin-project-lite/compare/v0.1.9...v0.1.10 [0.1.9]: https://github.com/taiki-e/pin-project-lite/compare/v0.1.8...v0.1.9 @@ -13,18 +13,20 @@ [package] edition = "2018" name = "pin-project-lite" -version = "0.2.4" +version = "0.2.6" authors = ["Taiki Endo <te316e89@gmail.com>"] -exclude = ["/.github", "/scripts"] +exclude = ["/.*", "/scripts"] description = "A lightweight version of pin-project written with declarative macros.\n" documentation = "https://docs.rs/pin-project-lite" -readme = "README.md" keywords = ["pin", "macros"] categories = ["no-std", "rust-patterns"] license = "Apache-2.0 OR MIT" repository = "https://github.com/taiki-e/pin-project-lite" [package.metadata.docs.rs] targets = ["x86_64-unknown-linux-gnu"] +[dev-dependencies.macrotest] +version = "1.0.8" + [dev-dependencies.rustversion] version = "1" diff --git a/Cargo.toml.orig b/Cargo.toml.orig index a909043..2146247 100644 --- a/Cargo.toml.orig +++ b/Cargo.toml.orig @@ -1,6 +1,6 @@ [package] name = "pin-project-lite" -version = "0.2.4" +version = "0.2.6" authors = ["Taiki Endo <te316e89@gmail.com>"] edition = "2018" license = "Apache-2.0 OR MIT" @@ -8,8 +8,7 @@ repository = "https://github.com/taiki-e/pin-project-lite" documentation = "https://docs.rs/pin-project-lite" keywords = ["pin", "macros"] categories = ["no-std", "rust-patterns"] -readme = "README.md" -exclude = ["/.github", "/scripts"] +exclude = ["/.*", "/scripts"] description = """ A lightweight version of pin-project written with declarative macros. """ @@ -20,12 +19,12 @@ targets = ["x86_64-unknown-linux-gnu"] [workspace] members = [ "tests/doc", - "tests/expand", "tests/no-core", "tests/no-std", ] [dev-dependencies] +macrotest = "1.0.8" rustversion = "1" static_assertions = "1" trybuild = "1" @@ -7,13 +7,13 @@ third_party { } url { type: ARCHIVE - value: "https://static.crates.io/crates/pin-project-lite/pin-project-lite-0.2.4.crate" + value: "https://static.crates.io/crates/pin-project-lite/pin-project-lite-0.2.6.crate" } - version: "0.2.4" + version: "0.2.6" license_type: NOTICE last_upgrade_date { year: 2021 - month: 1 - day: 11 + month: 5 + day: 19 } } @@ -1,10 +1,10 @@ # pin-project-lite -[](https://crates.io/crates/pin-project-lite) +[](https://crates.io/crates/pin-project-lite) [](https://docs.rs/pin-project-lite) -[](#license) -[](https://www.rust-lang.org) -[](https://github.com/taiki-e/pin-project-lite/actions?query=workflow%3ACI+branch%3Amaster) +[](#license) +[](https://www.rust-lang.org) +[](https://github.com/taiki-e/pin-project-lite/actions) A lightweight version of [pin-project] written with declarative macros. diff --git a/TEST_MAPPING b/TEST_MAPPING new file mode 100644 index 0000000..b3c00a7 --- /dev/null +++ b/TEST_MAPPING @@ -0,0 +1,161 @@ +// Generated by update_crate_tests.py for tests that depend on this crate. +{ + "presubmit": [ + { + "name": "ZipFuseTest" + }, + { + "name": "anyhow_device_test_src_lib" + }, + { + "name": "anyhow_device_test_tests_test_autotrait" + }, + { + "name": "anyhow_device_test_tests_test_boxed" + }, + { + "name": "anyhow_device_test_tests_test_chain" + }, + { + "name": "anyhow_device_test_tests_test_context" + }, + { + "name": "anyhow_device_test_tests_test_convert" + }, + { + "name": "anyhow_device_test_tests_test_downcast" + }, + { + "name": "anyhow_device_test_tests_test_ffi" + }, + { + "name": "anyhow_device_test_tests_test_fmt" + }, + { + "name": "anyhow_device_test_tests_test_macros" + }, + { + "name": "anyhow_device_test_tests_test_repr" + }, + { + "name": "anyhow_device_test_tests_test_source" + }, + { + "name": "authfs_device_test_src_lib" + }, + { + "name": "doh_unit_test" + }, + { + "name": "futures-util_device_test_src_lib" + }, + { + "name": "tokio-test_device_test_src_lib" + }, + { + "name": "tokio-test_device_test_tests_block_on" + }, + { + "name": "tokio-test_device_test_tests_io" + }, + { + "name": "tokio-test_device_test_tests_macros" + }, + { + "name": "tokio_device_test_tests_buffered" + }, + { + "name": "tokio_device_test_tests_io_async_read" + }, + { + "name": "tokio_device_test_tests_io_copy_bidirectional" + }, + { + "name": "tokio_device_test_tests_io_lines" + }, + { + "name": "tokio_device_test_tests_io_mem_stream" + }, + { + "name": "tokio_device_test_tests_io_read" + }, + { + "name": "tokio_device_test_tests_io_read_buf" + }, + { + "name": "tokio_device_test_tests_io_read_to_end" + }, + { + "name": "tokio_device_test_tests_io_take" + }, + { + "name": "tokio_device_test_tests_io_write" + }, + { + "name": "tokio_device_test_tests_io_write_all" + }, + { + "name": "tokio_device_test_tests_io_write_buf" + }, + { + "name": "tokio_device_test_tests_io_write_int" + }, + { + "name": "tokio_device_test_tests_macros_join" + }, + { + "name": "tokio_device_test_tests_no_rt" + }, + { + "name": "tokio_device_test_tests_rt_basic" + }, + { + "name": "tokio_device_test_tests_rt_threaded" + }, + { + "name": "tokio_device_test_tests_sync_barrier" + }, + { + "name": "tokio_device_test_tests_sync_broadcast" + }, + { + "name": "tokio_device_test_tests_sync_errors" + }, + { + "name": "tokio_device_test_tests_sync_mpsc" + }, + { + "name": "tokio_device_test_tests_sync_mutex_owned" + }, + { + "name": "tokio_device_test_tests_sync_rwlock" + }, + { + "name": "tokio_device_test_tests_sync_watch" + }, + { + "name": "tokio_device_test_tests_task_local" + }, + { + "name": "tokio_device_test_tests_task_local_set" + }, + { + "name": "tokio_device_test_tests_tcp_accept" + }, + { + "name": "tokio_device_test_tests_tcp_echo" + }, + { + "name": "tokio_device_test_tests_tcp_into_std" + }, + { + "name": "tokio_device_test_tests_tcp_shutdown" + }, + { + "name": "tokio_device_test_tests_time_rt" + }, + { + "name": "tokio_device_test_tests_uds_split" + } + ] +} @@ -5,9 +5,10 @@ //! [`pin_project!`] macro creates a projection type covering all the fields of struct. //! //! ```rust -//! use pin_project_lite::pin_project; //! use std::pin::Pin; //! +//! use pin_project_lite::pin_project; +//! //! pin_project! { //! struct Struct<T, U> { //! #[pin] @@ -29,9 +30,10 @@ //! returned from the method. //! //! ```rust -//! use pin_project_lite::pin_project; //! use std::pin::Pin; //! +//! use pin_project_lite::pin_project; +//! //! pin_project! { //! #[project = EnumProj] //! enum Enum<T, U> { @@ -168,23 +170,6 @@ extern crate std; /// # } /// ``` /// -/// The `#[project]` (and `#[project_ref]`) attribute must precede the other -/// attributes except for `#[doc]`. For example, the following code will not be compiled: -/// -/// ```rust,compile_fail -/// # use pin_project_lite::pin_project; -/// # use std::pin::Pin; -/// pin_project! { -/// /// documents (`#[doc]`) can be placed before `#[project]`. -/// #[derive(Clone)] // <--- ERROR -/// #[project = EnumProj] -/// #[derive(Debug)] // <--- Ok -/// enum Enum<T> { -/// Variant { #[pin] field: T }, -/// } -/// } -/// ``` -/// /// Also, note that the projection types returned by `project` and `project_ref` have /// an additional lifetime at the beginning of generics. /// @@ -208,9 +193,10 @@ extern crate std; /// # Examples /// /// ```rust -/// use pin_project_lite::pin_project; /// use std::pin::Pin; /// +/// use pin_project_lite::pin_project; +/// /// pin_project! { /// struct Struct<T, U> { /// #[pin] @@ -232,9 +218,10 @@ extern crate std; /// returned from the method. /// /// ```rust -/// use pin_project_lite::pin_project; /// use std::pin::Pin; /// +/// use pin_project_lite::pin_project; +/// /// pin_project! { /// #[project = EnumProj] /// enum Enum<T> { @@ -263,9 +250,10 @@ extern crate std; /// consuming the [`Pin`]. /// /// ```rust -/// use pin_project_lite::pin_project; /// use std::pin::Pin; /// +/// use pin_project_lite::pin_project; +/// /// pin_project! { /// struct Struct<T> { /// #[pin] @@ -288,9 +276,10 @@ extern crate std; /// attribute for a [`PhantomPinned`] field. /// /// ```rust -/// use pin_project_lite::pin_project; /// use std::marker::PhantomPinned; /// +/// use pin_project_lite::pin_project; +/// /// pin_project! { /// struct Struct<T> { /// field: T, @@ -308,94 +297,9 @@ extern crate std; /// [pin-project]: https://github.com/taiki-e/pin-project #[macro_export] macro_rules! pin_project { - // Parses options - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - #[project_ref = $proj_ref_ident:ident] - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][$proj_ref_ident][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - #[project_ref = $proj_ref_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][$proj_ref_ident][] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project_ref = $proj_ref_ident:ident] - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [][$proj_ref_ident][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][][] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project_ref = $proj_ref_ident:ident] - $($tt:tt)* - ) => { + ($($tt:tt)*) => { $crate::__pin_project_internal! { - [][$proj_ref_ident][] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [][][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [][][] + [][][][] $($tt)* } }; @@ -587,10 +491,8 @@ macro_rules! __pin_project_internal { // Ensure that it's impossible to use pin projections on a #[repr(packed)] struct. // - // Taking a reference to a packed field is unsafe, amd appplying - // #[forbid(safe_packed_borrows)] makes sure that doing this without - // an 'unsafe' block (which we deliberately do not generate) - // is a hard error. + // Taking a reference to a packed field is UB, and applying + // `#[forbid(unaligned_references)]` makes sure that doing this is a hard error. // // If the struct ends up having #[repr(packed)] applied somehow, // this will generate an (unfriendly) error message. Under all reasonable @@ -598,7 +500,16 @@ macro_rules! __pin_project_internal { // a much nicer error above. // // See https://github.com/taiki-e/pin-project/pull/34 for more details. - #[forbid(safe_packed_borrows)] + // + // Note: + // - Lint-based tricks aren't perfect, but they're much better than nothing: + // https://github.com/taiki-e/pin-project-lite/issues/26 + // + // - Enable both unaligned_references and safe_packed_borrows lints + // because unaligned_references lint does not exist in older compilers: + // https://github.com/taiki-e/pin-project-lite/pull/55 + // https://github.com/rust-lang/rust/pull/82525 + #[forbid(unaligned_references, safe_packed_borrows)] fn __assert_not_repr_packed <$($impl_generics)*> (this: &$ident <$($ty_generics)*>) $(where $($where_clause)*)? @@ -1404,13 +1315,86 @@ macro_rules! __pin_project_internal { // ============================================================================================= // Parses input and determines visibility + + ( + [] + [$($proj_ref_ident:ident)?] + [$($proj_replace_ident:ident)?] + [$($attrs:tt)*] + + #[project = $proj_mut_ident:ident] + $($tt:tt)* + ) => { + $crate::__pin_project_internal! { + [$proj_mut_ident] + [$($proj_ref_ident)?] + [$($proj_replace_ident)?] + [$($attrs)*] + $($tt)* + } + }; + + { + [$($proj_mut_ident:ident)?] + [] + [$($proj_replace_ident:ident)?] + [$($attrs:tt)*] + + #[project_ref = $proj_ref_ident:ident] + $($tt:tt)* + } => { + $crate::__pin_project_internal! { + [$($proj_mut_ident)?] + [$proj_ref_ident] + [$($proj_replace_ident)?] + [$($attrs)*] + $($tt)* + } + }; + + { + [$($proj_mut_ident:ident)?] + [$($proj_ref_ident:ident)?] + [] + [$($attrs:tt)*] + + #[project_replace = $proj_replace_ident:ident] + $($tt:tt)* + } => { + $crate::__pin_project_internal! { + [$($proj_mut_ident)?] + [$($proj_ref_ident)?] + [$proj_replace_ident] + [$($attrs)*] + $($tt)* + } + }; + + { + [$($proj_mut_ident:ident)?] + [$($proj_ref_ident:ident)?] + [$($proj_replace_ident:ident)?] + [$($attrs:tt)*] + + #[$($attr:tt)*] + $($tt:tt)* + } => { + $crate::__pin_project_internal! { + [$($proj_mut_ident)?] + [$($proj_ref_ident)?] + [$($proj_replace_ident)?] + [$($attrs)* #[$($attr)*]] + $($tt)* + } + }; + // struct ( [$($proj_mut_ident:ident)?] [$($proj_ref_ident:ident)?] [$($proj_replace_ident:ident)?] + [$($attrs:tt)*] - $(#[$attrs:meta])* pub struct $ident:ident $(< $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? $( $generics:ident @@ -1439,7 +1423,7 @@ macro_rules! __pin_project_internal { [$($proj_ref_ident)?] [$($proj_replace_ident)?] [pub(crate)] - [$(#[$attrs])* pub struct $ident] + [$($attrs)* pub struct $ident] [$(< $( $lifetime $(: $lifetime_bound)? ,)* $( $generics @@ -1475,8 +1459,8 @@ macro_rules! __pin_project_internal { [$($proj_mut_ident:ident)?] [$($proj_ref_ident:ident)?] [$($proj_replace_ident:ident)?] + [$($attrs:tt)*] - $(#[$attrs:meta])* $vis:vis struct $ident:ident $(< $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? $( $generics:ident @@ -1505,7 +1489,7 @@ macro_rules! __pin_project_internal { [$($proj_ref_ident)?] [$($proj_replace_ident)?] [$vis] - [$(#[$attrs])* $vis struct $ident] + [$($attrs)* $vis struct $ident] [$(< $( $lifetime $(: $lifetime_bound)? ,)* $( $generics @@ -1542,8 +1526,8 @@ macro_rules! __pin_project_internal { [$($proj_mut_ident:ident)?] [$($proj_ref_ident:ident)?] [$($proj_replace_ident:ident)?] + [$($attrs:tt)*] - $(#[$attrs:meta])* pub enum $ident:ident $(< $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? $( $generics:ident @@ -1577,7 +1561,7 @@ macro_rules! __pin_project_internal { [$($proj_ref_ident)?] [$($proj_replace_ident)?] [pub(crate)] - [$(#[$attrs])* pub enum $ident] + [$($attrs)* pub enum $ident] [$(< $( $lifetime $(: $lifetime_bound)? ,)* $( $generics @@ -1618,8 +1602,8 @@ macro_rules! __pin_project_internal { [$($proj_mut_ident:ident)?] [$($proj_ref_ident:ident)?] [$($proj_replace_ident:ident)?] + [$($attrs:tt)*] - $(#[$attrs:meta])* $vis:vis enum $ident:ident $(< $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? $( $generics:ident @@ -1653,7 +1637,7 @@ macro_rules! __pin_project_internal { [$($proj_ref_ident)?] [$($proj_replace_ident)?] [$vis] - [$(#[$attrs])* $vis enum $ident] + [$($attrs)* $vis enum $ident] [$(< $( $lifetime $(: $lifetime_bound)? ,)* $( $generics diff --git a/src/lib.rs.orig b/src/lib.rs.orig deleted file mode 100644 index ff1e3bf..0000000 --- a/src/lib.rs.orig +++ /dev/null @@ -1,1737 +0,0 @@ -//! A lightweight version of [pin-project] written with declarative macros. -//! -//! # Examples -//! -//! [`pin_project!`] macro creates a projection type covering all the fields of struct. -//! -//! ```rust -//! use pin_project_lite::pin_project; -//! use std::pin::Pin; -//! -//! pin_project! { -//! struct Struct<T, U> { -//! #[pin] -//! pinned: T, -//! unpinned: U, -//! } -//! } -//! -//! impl<T, U> Struct<T, U> { -//! fn method(self: Pin<&mut Self>) { -//! let this = self.project(); -//! let _: Pin<&mut T> = this.pinned; // Pinned reference to the field -//! let _: &mut U = this.unpinned; // Normal reference to the field -//! } -//! } -//! ``` -//! -//! To use [`pin_project!`] on enums, you need to name the projection type -//! returned from the method. -//! -//! ```rust -//! use pin_project_lite::pin_project; -//! use std::pin::Pin; -//! -//! pin_project! { -//! #[project = EnumProj] -//! enum Enum<T, U> { -//! Variant { #[pin] pinned: T, unpinned: U }, -//! } -//! } -//! -//! impl<T, U> Enum<T, U> { -//! fn method(self: Pin<&mut Self>) { -//! match self.project() { -//! EnumProj::Variant { pinned, unpinned } => { -//! let _: Pin<&mut T> = pinned; -//! let _: &mut U = unpinned; -//! } -//! } -//! } -//! } -//! ``` -//! -//! # [pin-project] vs pin-project-lite -//! -//! Here are some similarities and differences compared to [pin-project]. -//! -//! ## Similar: Safety -//! -//! pin-project-lite guarantees safety in much the same way as [pin-project]. -//! Both are completely safe unless you write other unsafe code. -//! -//! ## Different: Minimal design -//! -//! This library does not tackle as expansive of a range of use cases as -//! [pin-project] does. If your use case is not already covered, please use -//! [pin-project]. -//! -//! ## Different: No proc-macro related dependencies -//! -//! This is the **only** reason to use this crate. However, **if you already -//! have proc-macro related dependencies in your crate's dependency graph, there -//! is no benefit from using this crate.** (Note: There is almost no difference -//! in the amount of code generated between [pin-project] and pin-project-lite.) -//! -//! ## Different: No useful error messages -//! -//! This macro does not handle any invalid input. So error messages are not to -//! be useful in most cases. If you do need useful error messages, then upon -//! error you can pass the same input to [pin-project] to receive a helpful -//! description of the compile error. -//! -//! ## Different: No support for custom Drop implementation -//! -//! pin-project supports this by [`#[pinned_drop]`][pinned-drop]. -//! -//! ## Different: No support for custom Unpin implementation -//! -//! pin-project supports this by [`UnsafeUnpin`][unsafe-unpin] and [`!Unpin`][not-unpin]. -//! -//! ## Different: No support for tuple structs and tuple variants -//! -//! pin-project supports this. -//! -//! [not-unpin]: https://docs.rs/pin-project/1/pin_project/attr.pin_project.html#unpin -//! [pin-project]: https://github.com/taiki-e/pin-project -//! [pinned-drop]: https://docs.rs/pin-project/1/pin_project/attr.pin_project.html#pinned_drop -//! [unsafe-unpin]: https://docs.rs/pin-project/1/pin_project/attr.pin_project.html#unsafeunpin - -#![no_std] -#![doc(test( - no_crate_inject, - attr( - deny(warnings, rust_2018_idioms, single_use_lifetimes), - allow(dead_code, unused_variables) - ) -))] -#![warn(future_incompatible, rust_2018_idioms, single_use_lifetimes, unreachable_pub)] -#![warn(clippy::all, clippy::default_trait_access)] - -/// A macro that creates a projection type covering all the fields of struct. -/// -/// This macro creates a projection type according to the following rules: -/// -/// * For the field that uses `#[pin]` attribute, makes the pinned reference to the field. -/// * For the other fields, makes the unpinned reference to the field. -/// -/// And the following methods are implemented on the original type: -/// -/// ```rust -/// # use std::pin::Pin; -/// # type Projection<'a> = &'a (); -/// # type ProjectionRef<'a> = &'a (); -/// # trait Dox { -/// fn project(self: Pin<&mut Self>) -> Projection<'_>; -/// fn project_ref(self: Pin<&Self>) -> ProjectionRef<'_>; -/// # } -/// ``` -/// -/// By passing an attribute with the same name as the method to the macro, -/// you can name the projection type returned from the method. This allows you -/// to use pattern matching on the projected types. -/// -/// ```rust -/// # use pin_project_lite::pin_project; -/// # use std::pin::Pin; -/// pin_project! { -/// #[project = EnumProj] -/// enum Enum<T> { -/// Variant { #[pin] field: T }, -/// } -/// } -/// -/// impl<T> Enum<T> { -/// fn method(self: Pin<&mut Self>) { -/// let this: EnumProj<'_, T> = self.project(); -/// match this { -/// EnumProj::Variant { field } => { -/// let _: Pin<&mut T> = field; -/// } -/// } -/// } -/// } -/// ``` -/// -/// By passing the `#[project_replace = MyProjReplace]` attribute you may create an additional -/// method which allows the contents of `Pin<&mut Self>` to be replaced while simultaneously moving -/// out all unpinned fields in `Self`. -/// -/// ```rust -/// # use std::pin::Pin; -/// # type MyProjReplace = (); -/// # trait Dox { -/// fn project_replace(self: Pin<&mut Self>, replacement: Self) -> MyProjReplace; -/// # } -/// ``` -/// -/// The `#[project]` (and `#[project_ref]`) attribute must precede the other -/// attributes except for `#[doc]`. For example, the following code will not be compiled: -/// -/// ```rust,compile_fail -/// # use pin_project_lite::pin_project; -/// # use std::pin::Pin; -/// pin_project! { -/// /// documents (`#[doc]`) can be placed before `#[project]`. -/// #[derive(Clone)] // <--- ERROR -/// #[project = EnumProj] -/// #[derive(Debug)] // <--- Ok -/// enum Enum<T> { -/// Variant { #[pin] field: T }, -/// } -/// } -/// ``` -/// -/// Also, note that the projection types returned by `project` and `project_ref` have -/// an additional lifetime at the beginning of generics. -/// -/// ```text -/// let this: EnumProj<'_, T> = self.project(); -/// ^^ -/// ``` -/// -/// The visibility of the projected types and projection methods is based on the -/// original type. However, if the visibility of the original type is `pub`, the -/// visibility of the projected types and the projection methods is downgraded -/// to `pub(crate)`. -/// -/// # Safety -/// -/// `pin_project!` macro guarantees safety in much the same way as [pin-project] crate. -/// Both are completely safe unless you write other unsafe code. -/// -/// See [pin-project] crate for more details. -/// -/// # Examples -/// -/// ```rust -/// use pin_project_lite::pin_project; -/// use std::pin::Pin; -/// -/// pin_project! { -/// struct Struct<T, U> { -/// #[pin] -/// pinned: T, -/// unpinned: U, -/// } -/// } -/// -/// impl<T, U> Struct<T, U> { -/// fn method(self: Pin<&mut Self>) { -/// let this = self.project(); -/// let _: Pin<&mut T> = this.pinned; // Pinned reference to the field -/// let _: &mut U = this.unpinned; // Normal reference to the field -/// } -/// } -/// ``` -/// -/// To use `pin_project!` on enums, you need to name the projection type -/// returned from the method. -/// -/// ```rust -/// use pin_project_lite::pin_project; -/// use std::pin::Pin; -/// -/// pin_project! { -/// #[project = EnumProj] -/// enum Enum<T> { -/// Struct { -/// #[pin] -/// field: T, -/// }, -/// Unit, -/// } -/// } -/// -/// impl<T> Enum<T> { -/// fn method(self: Pin<&mut Self>) { -/// match self.project() { -/// EnumProj::Struct { field } => { -/// let _: Pin<&mut T> = field; -/// } -/// EnumProj::Unit => {} -/// } -/// } -/// } -/// ``` -/// -/// If you want to call the `project()` method multiple times or later use the -/// original [`Pin`] type, it needs to use [`.as_mut()`][`Pin::as_mut`] to avoid -/// consuming the [`Pin`]. -/// -/// ```rust -/// use pin_project_lite::pin_project; -/// use std::pin::Pin; -/// -/// pin_project! { -/// struct Struct<T> { -/// #[pin] -/// field: T, -/// } -/// } -/// -/// impl<T> Struct<T> { -/// fn call_project_twice(mut self: Pin<&mut Self>) { -/// // `project` consumes `self`, so reborrow the `Pin<&mut Self>` via `as_mut`. -/// self.as_mut().project(); -/// self.as_mut().project(); -/// } -/// } -/// ``` -/// -/// # `!Unpin` -/// -/// If you want to ensure that [`Unpin`] is not implemented, use `#[pin]` -/// attribute for a [`PhantomPinned`] field. -/// -/// ```rust -/// use pin_project_lite::pin_project; -/// use std::marker::PhantomPinned; -/// -/// pin_project! { -/// struct Struct<T> { -/// field: T, -/// #[pin] // <------ This `#[pin]` is required to make `Struct` to `!Unpin`. -/// _pin: PhantomPinned, -/// } -/// } -/// ``` -/// -/// Note that using [`PhantomPinned`] without `#[pin]` attribute has no effect. -/// -/// [`PhantomPinned`]: core::marker::PhantomPinned -/// [`Pin::as_mut`]: core::pin::Pin::as_mut -/// [`Pin`]: core::pin::Pin -/// [pin-project]: https://github.com/taiki-e/pin-project -#[macro_export] -macro_rules! pin_project { - // Parses options - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - #[project_ref = $proj_ref_ident:ident] - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][$proj_ref_ident][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - #[project_ref = $proj_ref_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][$proj_ref_ident][] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project_ref = $proj_ref_ident:ident] - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [][$proj_ref_ident][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project = $proj_mut_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [$proj_mut_ident][][] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project_ref = $proj_ref_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [][$proj_ref_ident][] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $(#[doc $($doc:tt)*])* - #[project_replace = $proj_replace_ident:ident] - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [][][$proj_replace_ident] - $(#[doc $($doc)*])* - $($tt)* - } - }; - ( - $($tt:tt)* - ) => { - $crate::__pin_project_internal! { - [][][] - $($tt)* - } - }; -} - -// limitations: -// * no support for tuple structs and tuple variant (wontfix). -// * no support for multiple trait/lifetime bounds. -// * no support for `Self` in where clauses. (wontfix) -// * no support for overlapping lifetime names. (wontfix) -// * no interoperability with other field attributes. -// * no useful error messages. (wontfix) -// etc... - -// Not public API. -#[doc(hidden)] -#[macro_export] -macro_rules! __pin_project_internal { - // ============================================================================================= - // struct:main - (@struct=>internal; - [$($proj_mut_ident:ident)?] - [$($proj_ref_ident:ident)?] - [$($proj_replace_ident:ident)?] - [$proj_vis:vis] - [$(#[$attrs:meta])* $vis:vis struct $ident:ident] - [$($def_generics:tt)*] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)*)?] - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident: $field_ty:ty - ),+ - } - ) => { - $(#[$attrs])* - $vis struct $ident $($def_generics)* - $(where - $($where_clause)*)? - { - $( - $field_vis $field: $field_ty - ),+ - } - - $crate::__pin_project_internal! { @struct=>make_proj_ty=>named; - [$proj_vis] - [$($proj_mut_ident)?] - [make_proj_field_mut] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - $crate::__pin_project_internal! { @struct=>make_proj_ty=>named; - [$proj_vis] - [$($proj_ref_ident)?] - [make_proj_field_ref] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - $crate::__pin_project_internal! { @struct=>make_proj_replace_ty=>named; - [$proj_vis] - [$($proj_replace_ident)?] - [make_proj_field_replace] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - - #[allow(explicit_outlives_requirements)] // https://github.com/rust-lang/rust/issues/60993 - #[allow(single_use_lifetimes)] // https://github.com/rust-lang/rust/issues/55058 - // This lint warns of `clippy::*` generated by external macros. - // We allow this lint for compatibility with older compilers. - #[allow(clippy::unknown_clippy_lints)] - #[allow(clippy::redundant_pub_crate)] // This lint warns `pub(crate)` field in private struct. - #[allow(clippy::used_underscore_binding)] - const _: () = { - $crate::__pin_project_internal! { @struct=>make_proj_ty=>unnamed; - [$proj_vis] - [$($proj_mut_ident)?][Projection] - [make_proj_field_mut] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - $crate::__pin_project_internal! { @struct=>make_proj_ty=>unnamed; - [$proj_vis] - [$($proj_ref_ident)?][ProjectionRef] - [make_proj_field_ref] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - $crate::__pin_project_internal! { @struct=>make_proj_replace_ty=>unnamed; - [$proj_vis] - [$($proj_replace_ident)?][ProjectionReplace] - [make_proj_field_replace] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - - impl <$($impl_generics)*> $ident <$($ty_generics)*> - $(where - $($where_clause)*)? - { - $crate::__pin_project_internal! { @struct=>make_proj_method; - [$proj_vis] - [$($proj_mut_ident)?][Projection] - [project get_unchecked_mut mut] - [$($ty_generics)*] - { - $( - $(#[$pin])? - $field_vis $field - ),+ - } - } - $crate::__pin_project_internal! { @struct=>make_proj_method; - [$proj_vis] - [$($proj_ref_ident)?][ProjectionRef] - [project_ref get_ref] - [$($ty_generics)*] - { - $( - $(#[$pin])? - $field_vis $field - ),+ - } - } - $crate::__pin_project_internal! { @struct=>make_proj_replace_method; - [$proj_vis] - [$($proj_replace_ident)?][ProjectionReplace] - [$($ty_generics)*] - { - $( - $(#[$pin])? - $field_vis $field - ),+ - } - } - } - - $crate::__pin_project_internal! { @make_unpin_impl; - [$vis $ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - $( - $field: $crate::__pin_project_internal!(@make_unpin_bound; - $(#[$pin])? $field_ty - ) - ),+ - } - - $crate::__pin_project_internal! { @make_drop_impl; - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - } - - // Ensure that it's impossible to use pin projections on a #[repr(packed)] struct. - // - // Taking a reference to a packed field is unsafe, amd appplying - // #[forbid(safe_packed_borrows)] makes sure that doing this without - // an 'unsafe' block (which we deliberately do not generate) - // is a hard error. - // - // If the struct ends up having #[repr(packed)] applied somehow, - // this will generate an (unfriendly) error message. Under all reasonable - // circumstances, we'll detect the #[repr(packed)] attribute, and generate - // a much nicer error above. - // - // See https://github.com/taiki-e/pin-project/pull/34 for more details. - #[forbid(safe_packed_borrows)] - fn __assert_not_repr_packed <$($impl_generics)*> (this: &$ident <$($ty_generics)*>) - $(where - $($where_clause)*)? - { - $( - let _ = &this.$field; - )+ - } - }; - }; - // ============================================================================================= - // enum:main - (@enum=>internal; - [$($proj_mut_ident:ident)?] - [$($proj_ref_ident:ident)?] - [$($proj_replace_ident:ident)?] - [$proj_vis:vis] - [$(#[$attrs:meta])* $vis:vis enum $ident:ident] - [$($def_generics:tt)*] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)*)?] - { - $( - $(#[$variant_attrs:meta])* - $variant:ident $({ - $( - $(#[$pin:ident])? - $field:ident: $field_ty:ty - ),+ - })? - ),+ - } - ) => { - $(#[$attrs])* - $vis enum $ident $($def_generics)* - $(where - $($where_clause)*)? - { - $( - $(#[$variant_attrs])* - $variant $({ - $( - $field: $field_ty - ),+ - })? - ),+ - } - - $crate::__pin_project_internal! { @enum=>make_proj_ty; - [$proj_vis] - [$($proj_mut_ident)?] - [make_proj_field_mut] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $variant $({ - $( - $(#[$pin])? - $field: $field_ty - ),+ - })? - ),+ - } - } - $crate::__pin_project_internal! { @enum=>make_proj_ty; - [$proj_vis] - [$($proj_ref_ident)?] - [make_proj_field_ref] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $variant $({ - $( - $(#[$pin])? - $field: $field_ty - ),+ - })? - ),+ - } - } - $crate::__pin_project_internal! { @enum=>make_proj_replace_ty; - [$proj_vis] - [$($proj_replace_ident)?] - [make_proj_field_replace] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - { - $( - $variant $({ - $( - $(#[$pin])? - $field: $field_ty - ),+ - })? - ),+ - } - } - - #[allow(single_use_lifetimes)] // https://github.com/rust-lang/rust/issues/55058 - // This lint warns of `clippy::*` generated by external macros. - // We allow this lint for compatibility with older compilers. - #[allow(clippy::unknown_clippy_lints)] - #[allow(clippy::used_underscore_binding)] - const _: () = { - impl <$($impl_generics)*> $ident <$($ty_generics)*> - $(where - $($where_clause)*)? - { - $crate::__pin_project_internal! { @enum=>make_proj_method; - [$proj_vis] - [$($proj_mut_ident)?] - [project get_unchecked_mut mut] - [$($ty_generics)*] - { - $( - $variant $({ - $( - $(#[$pin])? - $field - ),+ - })? - ),+ - } - } - $crate::__pin_project_internal! { @enum=>make_proj_method; - [$proj_vis] - [$($proj_ref_ident)?] - [project_ref get_ref] - [$($ty_generics)*] - { - $( - $variant $({ - $( - $(#[$pin])? - $field - ),+ - })? - ),+ - } - } - $crate::__pin_project_internal! { @enum=>make_proj_replace_method; - [$proj_vis] - [$($proj_replace_ident)?] - [$($ty_generics)*] - { - $( - $variant $({ - $( - $(#[$pin])? - $field - ),+ - })? - ),+ - } - } - } - - $crate::__pin_project_internal! { @make_unpin_impl; - [$vis $ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - $( - $variant: ($( - $( - $crate::__pin_project_internal!(@make_unpin_bound; - $(#[$pin])? $field_ty - ) - ),+ - )?) - ),+ - } - - $crate::__pin_project_internal! { @make_drop_impl; - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - } - - // We don't need to check for '#[repr(packed)]', - // since it does not apply to enums. - }; - }; - - // ============================================================================================= - // struct:make_proj_ty - (@struct=>make_proj_ty=>unnamed; - [$proj_vis:vis] - [$_proj_ty_ident:ident][$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($field:tt)* - ) => {}; - (@struct=>make_proj_ty=>unnamed; - [$proj_vis:vis] - [][$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($field:tt)* - ) => { - $crate::__pin_project_internal! { @struct=>make_proj_ty=>named; - [$proj_vis] - [$proj_ty_ident] - [$make_proj_field] - [$ident] - [$($impl_generics)*] [$($ty_generics)*] [$(where $($where_clause)*)?] - $($field)* - } - }; - (@struct=>make_proj_ty=>named; - [$proj_vis:vis] - [$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident: $field_ty:ty - ),+ - } - ) => { - #[allow(dead_code)] // This lint warns unused fields/variants. - #[allow(single_use_lifetimes)] // https://github.com/rust-lang/rust/issues/55058 - // This lint warns of `clippy::*` generated by external macros. - // We allow this lint for compatibility with older compilers. - #[allow(clippy::unknown_clippy_lints)] - #[allow(clippy::mut_mut)] // This lint warns `&mut &mut <ty>`. (only needed for project) - #[allow(clippy::redundant_pub_crate)] // This lint warns `pub(crate)` field in private struct. - #[allow(clippy::ref_option_ref)] // This lint warns `&Option<&<ty>>`. (only needed for project_ref) - #[allow(clippy::type_repetition_in_bounds)] // https://github.com/rust-lang/rust-clippy/issues/4326 - $proj_vis struct $proj_ty_ident <'__pin, $($impl_generics)*> - where - $ident <$($ty_generics)*>: '__pin - $(, $($where_clause)*)? - { - $( - $field_vis $field: $crate::__pin_project_internal!(@$make_proj_field; - $(#[$pin])? $field_ty - ) - ),+ - } - }; - (@struct=>make_proj_ty=>named; - [$proj_vis:vis] - [] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($field:tt)* - ) => {}; - - (@struct=>make_proj_replace_ty=>unnamed; - [$proj_vis:vis] - [$_proj_ty_ident:ident][$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($field:tt)* - ) => {}; - (@struct=>make_proj_replace_ty=>unnamed; - [$proj_vis:vis] - [][$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($field:tt)* - ) => { - }; - (@struct=>make_proj_replace_ty=>named; - [$proj_vis:vis] - [$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident: $field_ty:ty - ),+ - } - ) => { - #[allow(dead_code)] // This lint warns unused fields/variants. - #[allow(single_use_lifetimes)] // https://github.com/rust-lang/rust/issues/55058 - #[allow(clippy::mut_mut)] // This lint warns `&mut &mut <ty>`. (only needed for project) - #[allow(clippy::redundant_pub_crate)] // This lint warns `pub(crate)` field in private struct. - #[allow(clippy::type_repetition_in_bounds)] // https://github.com/rust-lang/rust-clippy/issues/4326 - $proj_vis struct $proj_ty_ident <$($impl_generics)*> - where - $($($where_clause)*)? - { - $( - $field_vis $field: $crate::__pin_project_internal!(@$make_proj_field; - $(#[$pin])? $field_ty - ) - ),+ - } - }; - (@struct=>make_proj_replace_ty=>named; - [$proj_vis:vis] - [] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($field:tt)* - ) => {}; - // ============================================================================================= - // enum:make_proj_ty - (@enum=>make_proj_ty; - [$proj_vis:vis] - [$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - { - $( - $variant:ident $({ - $( - $(#[$pin:ident])? - $field:ident: $field_ty:ty - ),+ - })? - ),+ - } - ) => { - #[allow(dead_code)] // This lint warns unused fields/variants. - #[allow(single_use_lifetimes)] // https://github.com/rust-lang/rust/issues/55058 - // This lint warns of `clippy::*` generated by external macros. - // We allow this lint for compatibility with older compilers. - #[allow(clippy::unknown_clippy_lints)] - #[allow(clippy::mut_mut)] // This lint warns `&mut &mut <ty>`. (only needed for project) - #[allow(clippy::redundant_pub_crate)] // This lint warns `pub(crate)` field in private struct. - #[allow(clippy::ref_option_ref)] // This lint warns `&Option<&<ty>>`. (only needed for project_ref) - #[allow(clippy::type_repetition_in_bounds)] // https://github.com/rust-lang/rust-clippy/issues/4326 - $proj_vis enum $proj_ty_ident <'__pin, $($impl_generics)*> - where - $ident <$($ty_generics)*>: '__pin - $(, $($where_clause)*)? - { - $( - $variant $({ - $( - $field: $crate::__pin_project_internal!(@$make_proj_field; - $(#[$pin])? $field_ty - ) - ),+ - })? - ),+ - } - }; - (@enum=>make_proj_ty; - [$proj_vis:vis] - [] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($variant:tt)* - ) => {}; - - (@enum=>make_proj_replace_ty; - [$proj_vis:vis] - [$proj_ty_ident:ident] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - { - $( - $variant:ident $({ - $( - $(#[$pin:ident])? - $field:ident: $field_ty:ty - ),+ - })? - ),+ - } - ) => { - #[allow(dead_code)] // This lint warns unused fields/variants. - #[allow(single_use_lifetimes)] // https://github.com/rust-lang/rust/issues/55058 - #[allow(clippy::mut_mut)] // This lint warns `&mut &mut <ty>`. (only needed for project) - #[allow(clippy::redundant_pub_crate)] // This lint warns `pub(crate)` field in private struct. - #[allow(clippy::type_repetition_in_bounds)] // https://github.com/rust-lang/rust-clippy/issues/4326 - $proj_vis enum $proj_ty_ident <$($impl_generics)*> - where - $($($where_clause)*)? - { - $( - $variant $({ - $( - $field: $crate::__pin_project_internal!(@$make_proj_field; - $(#[$pin])? $field_ty - ) - ),+ - })? - ),+ - } - }; - (@enum=>make_proj_replace_ty; - [$proj_vis:vis] - [] - [$make_proj_field:ident] - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($variant:tt)* - ) => {}; - - // ============================================================================================= - (@make_proj_replace_block; - [$($proj_path: tt)+] - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident - ),+ - } - ) => { - let result = $($proj_path)* { - $( - $field: $crate::__pin_project_internal!(@make_replace_field_proj; - $(#[$pin])? $field - ) - ),+ - }; - - { - ( $( - $crate::__pin_project_internal!(@make_unsafe_drop_in_place_guard; - $(#[$pin])? $field - ), - )* ); - } - - result - }; - (@make_proj_replace_block; - [$($proj_path: tt)+] - ) => { - $($proj_path)* - }; - - // ============================================================================================= - // struct:make_proj_method - (@struct=>make_proj_method; - [$proj_vis:vis] - [$proj_ty_ident:ident][$_proj_ty_ident:ident] - [$method_ident:ident $get_method:ident $($mut:ident)?] - [$($ty_generics:tt)*] - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident - ),+ - } - ) => { - $proj_vis fn $method_ident<'__pin>( - self: $crate::__private::Pin<&'__pin $($mut)? Self>, - ) -> $proj_ty_ident <'__pin, $($ty_generics)*> { - unsafe { - let Self { $($field),* } = self.$get_method(); - $proj_ty_ident { - $( - $field: $crate::__pin_project_internal!(@make_unsafe_field_proj; - $(#[$pin])? $field - ) - ),+ - } - } - } - }; - (@struct=>make_proj_method; - [$proj_vis:vis] - [][$proj_ty_ident:ident] - [$method_ident:ident $get_method:ident $($mut:ident)?] - [$($ty_generics:tt)*] - $($variant:tt)* - ) => { - $crate::__pin_project_internal! { @struct=>make_proj_method; - [$proj_vis] - [$proj_ty_ident][$proj_ty_ident] - [$method_ident $get_method $($mut)?] - [$($ty_generics)*] - $($variant)* - } - }; - - (@struct=>make_proj_replace_method; - [$proj_vis:vis] - [$proj_ty_ident:ident][$_proj_ty_ident:ident] - [$($ty_generics:tt)*] - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident - ),+ - } - ) => { - $proj_vis fn project_replace( - self: $crate::__private::Pin<&mut Self>, - replacement: Self, - ) -> $proj_ty_ident <$($ty_generics)*> { - unsafe { - let __self_ptr: *mut Self = self.get_unchecked_mut(); - - // Destructors will run in reverse order, so next create a guard to overwrite - // `self` with the replacement value without calling destructors. - let __guard = $crate::__private::UnsafeOverwriteGuard { - target: __self_ptr, - value: $crate::__private::ManuallyDrop::new(replacement), - }; - - let Self { $($field),* } = &mut *__self_ptr; - - $crate::__pin_project_internal!{@make_proj_replace_block; - [$proj_ty_ident] - { - $( - $(#[$pin])? - $field - ),+ - } - } - } - } - }; - (@struct=>make_proj_replace_method; - [$proj_vis:vis] - [][$proj_ty_ident:ident] - [$($ty_generics:tt)*] - $($variant:tt)* - ) => { - }; - - // ============================================================================================= - // enum:make_proj_method - (@enum=>make_proj_method; - [$proj_vis:vis] - [$proj_ty_ident:ident] - [$method_ident:ident $get_method:ident $($mut:ident)?] - [$($ty_generics:tt)*] - { - $( - $variant:ident $({ - $( - $(#[$pin:ident])? - $field:ident - ),+ - })? - ),+ - } - ) => { - $proj_vis fn $method_ident<'__pin>( - self: $crate::__private::Pin<&'__pin $($mut)? Self>, - ) -> $proj_ty_ident <'__pin, $($ty_generics)*> { - unsafe { - match self.$get_method() { - $( - Self::$variant $({ - $($field),+ - })? => { - $proj_ty_ident::$variant $({ - $( - $field: $crate::__pin_project_internal!( - @make_unsafe_field_proj; - $(#[$pin])? $field - ) - ),+ - })? - } - ),+ - } - } - } - }; - (@enum=>make_proj_method; - [$proj_vis:vis] - [] - [$method_ident:ident $get_method:ident $($mut:ident)?] - [$($ty_generics:tt)*] - $($variant:tt)* - ) => {}; - - (@enum=>make_proj_replace_method; - [$proj_vis:vis] - [$proj_ty_ident:ident] - [$($ty_generics:tt)*] - { - $( - $variant:ident $({ - $( - $(#[$pin:ident])? - $field:ident - ),+ - })? - ),+ - } - ) => { - $proj_vis fn project_replace( - self: $crate::__private::Pin<&mut Self>, - replacement: Self, - ) -> $proj_ty_ident <$($ty_generics)*> { - unsafe { - let __self_ptr: *mut Self = self.get_unchecked_mut(); - - // Destructors will run in reverse order, so next create a guard to overwrite - // `self` with the replacement value without calling destructors. - let __guard = $crate::__private::UnsafeOverwriteGuard { - target: __self_ptr, - value: $crate::__private::ManuallyDrop::new(replacement), - }; - - match &mut *__self_ptr { - $( - Self::$variant $({ - $($field),+ - })? => { - $crate::__pin_project_internal!{@make_proj_replace_block; - [$proj_ty_ident :: $variant] - $({ - $( - $(#[$pin])? - $field - ),+ - })? - } - } - ),+ - } - } - } - }; - (@enum=>make_proj_replace_method; - [$proj_vis:vis] - [] - [$($ty_generics:tt)*] - $($variant:tt)* - ) => {}; - - // ============================================================================================= - // make_unpin_impl - (@make_unpin_impl; - [$vis:vis $ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - $($field:tt)* - ) => { - // Automatically create the appropriate conditional `Unpin` implementation. - // - // Basically this is equivalent to the following code: - // ```rust - // impl<T, U> Unpin for Struct<T, U> where T: Unpin {} - // ``` - // - // However, if struct is public and there is a private type field, - // this would cause an E0446 (private type in public interface). - // - // When RFC 2145 is implemented (rust-lang/rust#48054), - // this will become a lint, rather then a hard error. - // - // As a workaround for this, we generate a new struct, containing all of the pinned - // fields from our #[pin_project] type. This struct is delcared within - // a function, which makes it impossible to be named by user code. - // This guarnatees that it will use the default auto-trait impl for Unpin - - // that is, it will implement Unpin iff all of its fields implement Unpin. - // This type can be safely declared as 'public', satisfiying the privacy - // checker without actually allowing user code to access it. - // - // This allows users to apply the #[pin_project] attribute to types - // regardless of the privacy of the types of their fields. - // - // See also https://github.com/taiki-e/pin-project/pull/53. - #[allow(non_snake_case)] - $vis struct __Origin <'__pin, $($impl_generics)*> - $(where - $($where_clause)*)? - { - __dummy_lifetime: $crate::__private::PhantomData<&'__pin ()>, - $($field)* - } - impl <'__pin, $($impl_generics)*> $crate::__private::Unpin for $ident <$($ty_generics)*> - where - __Origin <'__pin, $($ty_generics)*>: $crate::__private::Unpin - $(, $($where_clause)*)? - { - } - }; - - // ============================================================================================= - // make_drop_impl - (@make_drop_impl; - [$ident:ident] - [$($impl_generics:tt)*] [$($ty_generics:tt)*] [$(where $($where_clause:tt)* )?] - ) => { - // Ensure that struct does not implement `Drop`. - // - // There are two possible cases: - // 1. The user type does not implement Drop. In this case, - // the first blanked impl will not apply to it. This code - // will compile, as there is only one impl of MustNotImplDrop for the user type - // 2. The user type does impl Drop. This will make the blanket impl applicable, - // which will then comflict with the explicit MustNotImplDrop impl below. - // This will result in a compilation error, which is exactly what we want. - trait MustNotImplDrop {} - #[allow(clippy::drop_bounds, drop_bounds)] - impl<T: $crate::__private::Drop> MustNotImplDrop for T {} - impl <$($impl_generics)*> MustNotImplDrop for $ident <$($ty_generics)*> - $(where - $($where_clause)*)? - { - } - }; - - // ============================================================================================= - // make_unpin_bound - (@make_unpin_bound; - #[pin] - $field_ty:ty - ) => { - $field_ty - }; - (@make_unpin_bound; - $field_ty:ty - ) => { - $crate::__private::AlwaysUnpin<$field_ty> - }; - - // ============================================================================================= - // make_unsafe_field_proj - (@make_unsafe_field_proj; - #[pin] - $field:ident - ) => { - $crate::__private::Pin::new_unchecked($field) - }; - (@make_unsafe_field_proj; - $field:ident - ) => { - $field - }; - - // ============================================================================================= - // make_replace_field_proj - (@make_replace_field_proj; - #[pin] - $field:ident - ) => { - $crate::__private::PhantomData - }; - (@make_replace_field_proj; - $field:ident - ) => { - $crate::__private::ptr::read($field) - }; - - - // ============================================================================================= - // make_unsafe_drop_in_place_guard - (@make_unsafe_drop_in_place_guard; - #[pin] - $field:ident - ) => { - $crate::__private::UnsafeDropInPlaceGuard($field) - }; - (@make_unsafe_drop_in_place_guard; - $field:ident - ) => { - () - }; - - // ============================================================================================= - // make_proj_field - (@make_proj_field_mut; - #[pin] - $field_ty:ty - ) => { - $crate::__private::Pin<&'__pin mut ($field_ty)> - }; - (@make_proj_field_mut; - $field_ty:ty - ) => { - &'__pin mut ($field_ty) - }; - (@make_proj_field_ref; - #[pin] - $field_ty:ty - ) => { - $crate::__private::Pin<&'__pin ($field_ty)> - }; - (@make_proj_field_ref; - $field_ty:ty - ) => { - &'__pin ($field_ty) - }; - - (@make_proj_field_replace; - #[pin] - $field_ty:ty - ) => { - $crate::__private::PhantomData<$field_ty> - }; - (@make_proj_field_replace; - $field_ty:ty - ) => { - $field_ty - }; - - // ============================================================================================= - // Parses input and determines visibility - // struct - ( - [$($proj_mut_ident:ident)?] - [$($proj_ref_ident:ident)?] - [$($proj_replace_ident:ident)?] - - $(#[$attrs:meta])* - pub struct $ident:ident $(< - $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? - $( $generics:ident - $(: $generics_bound:path)? - $(: ?$generics_unsized_bound:path)? - $(: $generics_lifetime_bound:lifetime)? - $(= $generics_default:ty)? - ),* $(,)? - >)? - $(where - $( $where_clause_ty:ty - $(: $where_clause_bound:path)? - $(: ?$where_clause_unsized_bound:path)? - $(: $where_clause_lifetime_bound:lifetime)? - ),* $(,)? - )? - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident: $field_ty:ty - ),+ $(,)? - } - ) => { - $crate::__pin_project_internal! { @struct=>internal; - [$($proj_mut_ident)?] - [$($proj_ref_ident)?] - [$($proj_replace_ident)?] - [pub(crate)] - [$(#[$attrs])* pub struct $ident] - [$(< - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - $(= $generics_default)? - ),* - >)?] - [$( - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - ),* - )?] - [$( $( $lifetime ,)* $( $generics ),* )?] - [$(where $( $where_clause_ty - $(: $where_clause_bound)? - $(: ?$where_clause_unsized_bound)? - $(: $where_clause_lifetime_bound)? - ),* )?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - }; - ( - [$($proj_mut_ident:ident)?] - [$($proj_ref_ident:ident)?] - [$($proj_replace_ident:ident)?] - - $(#[$attrs:meta])* - $vis:vis struct $ident:ident $(< - $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? - $( $generics:ident - $(: $generics_bound:path)? - $(: ?$generics_unsized_bound:path)? - $(: $generics_lifetime_bound:lifetime)? - $(= $generics_default:ty)? - ),* $(,)? - >)? - $(where - $( $where_clause_ty:ty - $(: $where_clause_bound:path)? - $(: ?$where_clause_unsized_bound:path)? - $(: $where_clause_lifetime_bound:lifetime)? - ),* $(,)? - )? - { - $( - $(#[$pin:ident])? - $field_vis:vis $field:ident: $field_ty:ty - ),+ $(,)? - } - ) => { - $crate::__pin_project_internal! { @struct=>internal; - [$($proj_mut_ident)?] - [$($proj_ref_ident)?] - [$($proj_replace_ident)?] - [$vis] - [$(#[$attrs])* $vis struct $ident] - [$(< - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - $(= $generics_default)? - ),* - >)?] - [$( - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - ),* - )?] - [$( $( $lifetime ,)* $( $generics ),* )?] - [$(where $( $where_clause_ty - $(: $where_clause_bound)? - $(: ?$where_clause_unsized_bound)? - $(: $where_clause_lifetime_bound)? - ),* )?] - { - $( - $(#[$pin])? - $field_vis $field: $field_ty - ),+ - } - } - }; - // enum - ( - [$($proj_mut_ident:ident)?] - [$($proj_ref_ident:ident)?] - [$($proj_replace_ident:ident)?] - - $(#[$attrs:meta])* - pub enum $ident:ident $(< - $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? - $( $generics:ident - $(: $generics_bound:path)? - $(: ?$generics_unsized_bound:path)? - $(: $generics_lifetime_bound:lifetime)? - $(= $generics_default:ty)? - ),* $(,)? - >)? - $(where - $( $where_clause_ty:ty - $(: $where_clause_bound:path)? - $(: ?$where_clause_unsized_bound:path)? - $(: $where_clause_lifetime_bound:lifetime)? - ),* $(,)? - )? - { - $( - $(#[$variant_attrs:meta])* - $variant:ident $({ - $( - $(#[$pin:ident])? - $field:ident: $field_ty:ty - ),+ $(,)? - })? - ),+ $(,)? - } - ) => { - $crate::__pin_project_internal! { @enum=>internal; - [$($proj_mut_ident)?] - [$($proj_ref_ident)?] - [$($proj_replace_ident)?] - [pub(crate)] - [$(#[$attrs])* pub enum $ident] - [$(< - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - $(= $generics_default)? - ),* - >)?] - [$( - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - ),* - )?] - [$( $( $lifetime ,)* $( $generics ),* )?] - [$(where $( $where_clause_ty - $(: $where_clause_bound)? - $(: ?$where_clause_unsized_bound)? - $(: $where_clause_lifetime_bound)? - ),* )?] - { - $( - $(#[$variant_attrs])* - $variant $({ - $( - $(#[$pin])? - $field: $field_ty - ),+ - })? - ),+ - } - } - }; - ( - [$($proj_mut_ident:ident)?] - [$($proj_ref_ident:ident)?] - [$($proj_replace_ident:ident)?] - - $(#[$attrs:meta])* - $vis:vis enum $ident:ident $(< - $( $lifetime:lifetime $(: $lifetime_bound:lifetime)? ),* $(,)? - $( $generics:ident - $(: $generics_bound:path)? - $(: ?$generics_unsized_bound:path)? - $(: $generics_lifetime_bound:lifetime)? - $(= $generics_default:ty)? - ),* $(,)? - >)? - $(where - $( $where_clause_ty:ty - $(: $where_clause_bound:path)? - $(: ?$where_clause_unsized_bound:path)? - $(: $where_clause_lifetime_bound:lifetime)? - ),* $(,)? - )? - { - $( - $(#[$variant_attrs:meta])* - $variant:ident $({ - $( - $(#[$pin:ident])? - $field:ident: $field_ty:ty - ),+ $(,)? - })? - ),+ $(,)? - } - ) => { - $crate::__pin_project_internal! { @enum=>internal; - [$($proj_mut_ident)?] - [$($proj_ref_ident)?] - [$($proj_replace_ident)?] - [$vis] - [$(#[$attrs])* $vis enum $ident] - [$(< - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - $(= $generics_default)? - ),* - >)?] - [$( - $( $lifetime $(: $lifetime_bound)? ,)* - $( $generics - $(: $generics_bound)? - $(: ?$generics_unsized_bound)? - $(: $generics_lifetime_bound)? - ),* - )?] - [$( $( $lifetime ,)* $( $generics ),* )?] - [$(where $( $where_clause_ty - $(: $where_clause_bound)? - $(: ?$where_clause_unsized_bound)? - $(: $where_clause_lifetime_bound)? - ),* )?] - { - $( - $(#[$variant_attrs])* - $variant $({ - $( - $(#[$pin])? - $field: $field_ty - ),+ - })? - ),+ - } - } - }; -} - -// Not public API. -#[doc(hidden)] -pub mod __private { - #[doc(hidden)] - pub use core::{ - marker::{PhantomData, Unpin}, - mem::ManuallyDrop, - ops::Drop, - pin::Pin, - ptr, - }; - - // This is an internal helper struct used by `pin_project!`. - #[doc(hidden)] - pub struct AlwaysUnpin<T: ?Sized>(PhantomData<T>); - - impl<T: ?Sized> Unpin for AlwaysUnpin<T> {} - - // This is an internal helper used to ensure a value is dropped. - #[doc(hidden)] - pub struct UnsafeDropInPlaceGuard<T: ?Sized>(pub *mut T); - - impl<T: ?Sized> Drop for UnsafeDropInPlaceGuard<T> { - fn drop(&mut self) { - unsafe { - ptr::drop_in_place(self.0); - } - } - } - - // This is an internal helper used to ensure a value is overwritten without - // its destructor being called. - #[doc(hidden)] - pub struct UnsafeOverwriteGuard<T> { - pub value: ManuallyDrop<T>, - pub target: *mut T, - } - - impl<T> Drop for UnsafeOverwriteGuard<T> { - fn drop(&mut self) { - unsafe { - ptr::write(self.target, ptr::read(&*self.value)); - } - } - } -} diff --git a/tests/auxiliary/mod.rs b/tests/auxiliary/mod.rs index e39037c..1457099 100644 --- a/tests/auxiliary/mod.rs +++ b/tests/auxiliary/mod.rs @@ -1,6 +1,4 @@ #![allow(dead_code, unused_macros)] -#![allow(box_pointers, unreachable_pub)] -#![allow(clippy::restriction)] macro_rules! assert_unpin { ($ty:ty) => { diff --git a/tests/compiletest.rs b/tests/compiletest.rs index 5a91b20..77e913b 100644 --- a/tests/compiletest.rs +++ b/tests/compiletest.rs @@ -11,5 +11,5 @@ fn ui() { } let t = trybuild::TestCases::new(); - t.compile_fail("tests/ui/*.rs"); + t.compile_fail("tests/ui/*/*.rs"); } diff --git a/tests/drop_order.rs b/tests/drop_order.rs index d84c324..07120cc 100644 --- a/tests/drop_order.rs +++ b/tests/drop_order.rs @@ -2,9 +2,10 @@ // Refs: https://doc.rust-lang.org/reference/destructors.html -use pin_project_lite::pin_project; use std::{cell::Cell, panic, pin::Pin, thread}; +use pin_project_lite::pin_project; + struct D<'a>(&'a Cell<usize>, usize); impl Drop for D<'_> { diff --git a/tests/expand/README.md b/tests/expand/README.md new file mode 100644 index 0000000..1f7dcfb --- /dev/null +++ b/tests/expand/README.md @@ -0,0 +1,17 @@ +# Expansion tests + +Similar to ui tests, but instead of checking the compiler output, this checks +the code generated by macros. + +See [examples](https://github.com/taiki-e/pin-project/tree/HEAD/examples) for +descriptions of what the generated code does, and why it needs to be generated. + +To run this test, run the following command: + +```sh +cargo +nightly test --test expandtest +``` + +Locally, this test updates the files in the `expand` directory if there are +changes to the generated code. If there are any changes to the files in the +`expand` directory after running the test, please commit them. diff --git a/tests/expand/default/enum.expanded.rs b/tests/expand/default/enum.expanded.rs new file mode 100644 index 0000000..df005ad --- /dev/null +++ b/tests/expand/default/enum.expanded.rs @@ -0,0 +1,127 @@ +use pin_project_lite::pin_project; +enum Enum<T, U> { + Struct { pinned: T, unpinned: U }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProj<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), + }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProjRef<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), + }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProjReplace<T, U> { + Struct { + pinned: ::pin_project_lite::__private::PhantomData<T>, + unpinned: U, + }, + Unit, +} +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Enum<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> EnumProj<'__pin, T, U> { + unsafe { + match self.get_unchecked_mut() { + Self::Struct { pinned, unpinned } => EnumProj::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProj::Unit, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> EnumProjRef<'__pin, T, U> { + unsafe { + match self.get_ref() { + Self::Struct { pinned, unpinned } => EnumProjRef::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProjRef::Unit, + } + } + } + fn project_replace( + self: ::pin_project_lite::__private::Pin<&mut Self>, + replacement: Self, + ) -> EnumProjReplace<T, U> { + unsafe { + let __self_ptr: *mut Self = self.get_unchecked_mut(); + let __guard = ::pin_project_lite::__private::UnsafeOverwriteGuard { + target: __self_ptr, + value: ::pin_project_lite::__private::ManuallyDrop::new(replacement), + }; + match &mut *__self_ptr { + Self::Struct { pinned, unpinned } => { + let result = EnumProjReplace::Struct { + pinned: ::pin_project_lite::__private::PhantomData, + unpinned: ::pin_project_lite::__private::ptr::read(unpinned), + }; + { + ( + ::pin_project_lite::__private::UnsafeDropInPlaceGuard(pinned), + (), + ); + } + result + } + Self::Unit => EnumProjReplace::Unit, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + Struct: (T, ::pin_project_lite::__private::AlwaysUnpin<U>), + Unit: (), + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Enum<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Enum<T, U> {} +}; +fn main() {} diff --git a/tests/expand/default/enum.rs b/tests/expand/default/enum.rs new file mode 100644 index 0000000..90d6860 --- /dev/null +++ b/tests/expand/default/enum.rs @@ -0,0 +1,17 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project = EnumProj] + #[project_ref = EnumProjRef] + #[project_replace = EnumProjReplace] + enum Enum<T, U> { + Struct { + #[pin] + pinned: T, + unpinned: U, + }, + Unit, + } +} + +fn main() {} diff --git a/tests/expand/default/struct.expanded.rs b/tests/expand/default/struct.expanded.rs new file mode 100644 index 0000000..8ab318c --- /dev/null +++ b/tests/expand/default/struct.expanded.rs @@ -0,0 +1,84 @@ +use pin_project_lite::pin_project; +struct Struct<T, U> { + pinned: T, + unpinned: U, +} +#[allow(explicit_outlives_requirements)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct Projection<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), + } + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct ProjectionRef<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), + } + impl<T, U> Struct<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> Projection<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_unchecked_mut(); + Projection { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> ProjectionRef<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_ref(); + ProjectionRef { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + pinned: T, + unpinned: ::pin_project_lite::__private::AlwaysUnpin<U>, + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Struct<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Struct<T, U> {} + #[forbid(unaligned_references, safe_packed_borrows)] + fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) { + let _ = &this.pinned; + let _ = &this.unpinned; + } +}; +fn main() {} diff --git a/tests/expand/default/struct.rs b/tests/expand/default/struct.rs new file mode 100644 index 0000000..e5447c7 --- /dev/null +++ b/tests/expand/default/struct.rs @@ -0,0 +1,11 @@ +use pin_project_lite::pin_project; + +pin_project! { + struct Struct<T, U> { + #[pin] + pinned: T, + unpinned: U, + } +} + +fn main() {} diff --git a/tests/expand/multifields/enum.expanded.rs b/tests/expand/multifields/enum.expanded.rs new file mode 100644 index 0000000..a0b17cb --- /dev/null +++ b/tests/expand/multifields/enum.expanded.rs @@ -0,0 +1,88 @@ +use pin_project_lite::pin_project; +enum Enum<T, U> { + Struct { + pinned1: T, + pinned2: T, + unpinned1: U, + unpinned2: U, + }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProjReplace<T, U> { + Struct { + pinned1: ::pin_project_lite::__private::PhantomData<T>, + pinned2: ::pin_project_lite::__private::PhantomData<T>, + unpinned1: U, + unpinned2: U, + }, + Unit, +} +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Enum<T, U> { + fn project_replace( + self: ::pin_project_lite::__private::Pin<&mut Self>, + replacement: Self, + ) -> EnumProjReplace<T, U> { + unsafe { + let __self_ptr: *mut Self = self.get_unchecked_mut(); + let __guard = ::pin_project_lite::__private::UnsafeOverwriteGuard { + target: __self_ptr, + value: ::pin_project_lite::__private::ManuallyDrop::new(replacement), + }; + match &mut *__self_ptr { + Self::Struct { + pinned1, + pinned2, + unpinned1, + unpinned2, + } => { + let result = EnumProjReplace::Struct { + pinned1: ::pin_project_lite::__private::PhantomData, + pinned2: ::pin_project_lite::__private::PhantomData, + unpinned1: ::pin_project_lite::__private::ptr::read(unpinned1), + unpinned2: ::pin_project_lite::__private::ptr::read(unpinned2), + }; + { + ( + ::pin_project_lite::__private::UnsafeDropInPlaceGuard(pinned1), + ::pin_project_lite::__private::UnsafeDropInPlaceGuard(pinned2), + (), + (), + ); + } + result + } + Self::Unit => EnumProjReplace::Unit, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + Struct: ( + T, + T, + ::pin_project_lite::__private::AlwaysUnpin<U>, + ::pin_project_lite::__private::AlwaysUnpin<U>, + ), + Unit: (), + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Enum<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Enum<T, U> {} +}; +fn main() {} diff --git a/tests/expand/multifields/enum.rs b/tests/expand/multifields/enum.rs new file mode 100644 index 0000000..c713362 --- /dev/null +++ b/tests/expand/multifields/enum.rs @@ -0,0 +1,18 @@ +use pin_project_lite::pin_project; + +pin_project! { +#[project_replace = EnumProjReplace] +enum Enum<T, U> { + Struct { + #[pin] + pinned1: T, + #[pin] + pinned2: T, + unpinned1: U, + unpinned2: U, + }, + Unit, +} +} + +fn main() {} diff --git a/tests/expand/multifields/struct.expanded.rs b/tests/expand/multifields/struct.expanded.rs new file mode 100644 index 0000000..638bf56 --- /dev/null +++ b/tests/expand/multifields/struct.expanded.rs @@ -0,0 +1,152 @@ +use pin_project_lite::pin_project; +struct Struct<T, U> { + pinned1: T, + pinned2: T, + unpinned1: U, + unpinned2: U, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::type_repetition_in_bounds)] +struct StructProjReplace<T, U> { + pinned1: ::pin_project_lite::__private::PhantomData<T>, + pinned2: ::pin_project_lite::__private::PhantomData<T>, + unpinned1: U, + unpinned2: U, +} +#[allow(explicit_outlives_requirements)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct Projection<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned1: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + pinned2: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned1: &'__pin mut (U), + unpinned2: &'__pin mut (U), + } + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct ProjectionRef<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned1: ::pin_project_lite::__private::Pin<&'__pin (T)>, + pinned2: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned1: &'__pin (U), + unpinned2: &'__pin (U), + } + impl<T, U> Struct<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> Projection<'__pin, T, U> { + unsafe { + let Self { + pinned1, + pinned2, + unpinned1, + unpinned2, + } = self.get_unchecked_mut(); + Projection { + pinned1: ::pin_project_lite::__private::Pin::new_unchecked(pinned1), + pinned2: ::pin_project_lite::__private::Pin::new_unchecked(pinned2), + unpinned1: unpinned1, + unpinned2: unpinned2, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> ProjectionRef<'__pin, T, U> { + unsafe { + let Self { + pinned1, + pinned2, + unpinned1, + unpinned2, + } = self.get_ref(); + ProjectionRef { + pinned1: ::pin_project_lite::__private::Pin::new_unchecked(pinned1), + pinned2: ::pin_project_lite::__private::Pin::new_unchecked(pinned2), + unpinned1: unpinned1, + unpinned2: unpinned2, + } + } + } + fn project_replace( + self: ::pin_project_lite::__private::Pin<&mut Self>, + replacement: Self, + ) -> StructProjReplace<T, U> { + unsafe { + let __self_ptr: *mut Self = self.get_unchecked_mut(); + let __guard = ::pin_project_lite::__private::UnsafeOverwriteGuard { + target: __self_ptr, + value: ::pin_project_lite::__private::ManuallyDrop::new(replacement), + }; + let Self { + pinned1, + pinned2, + unpinned1, + unpinned2, + } = &mut *__self_ptr; + let result = StructProjReplace { + pinned1: ::pin_project_lite::__private::PhantomData, + pinned2: ::pin_project_lite::__private::PhantomData, + unpinned1: ::pin_project_lite::__private::ptr::read(unpinned1), + unpinned2: ::pin_project_lite::__private::ptr::read(unpinned2), + }; + { + ( + ::pin_project_lite::__private::UnsafeDropInPlaceGuard(pinned1), + ::pin_project_lite::__private::UnsafeDropInPlaceGuard(pinned2), + (), + (), + ); + } + result + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + pinned1: T, + pinned2: T, + unpinned1: ::pin_project_lite::__private::AlwaysUnpin<U>, + unpinned2: ::pin_project_lite::__private::AlwaysUnpin<U>, + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Struct<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Struct<T, U> {} + #[forbid(unaligned_references, safe_packed_borrows)] + fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) { + let _ = &this.pinned1; + let _ = &this.pinned2; + let _ = &this.unpinned1; + let _ = &this.unpinned2; + } +}; +fn main() {} diff --git a/tests/expand/multifields/struct.rs b/tests/expand/multifields/struct.rs new file mode 100644 index 0000000..a1d45d1 --- /dev/null +++ b/tests/expand/multifields/struct.rs @@ -0,0 +1,15 @@ +use pin_project_lite::pin_project; + +pin_project! { +#[project_replace = StructProjReplace] +struct Struct<T, U> { + #[pin] + pinned1: T, + #[pin] + pinned2: T, + unpinned1: U, + unpinned2: U, +} +} + +fn main() {} diff --git a/tests/expand/naming/enum-all.expanded.rs b/tests/expand/naming/enum-all.expanded.rs new file mode 100644 index 0000000..df005ad --- /dev/null +++ b/tests/expand/naming/enum-all.expanded.rs @@ -0,0 +1,127 @@ +use pin_project_lite::pin_project; +enum Enum<T, U> { + Struct { pinned: T, unpinned: U }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProj<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), + }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProjRef<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), + }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProjReplace<T, U> { + Struct { + pinned: ::pin_project_lite::__private::PhantomData<T>, + unpinned: U, + }, + Unit, +} +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Enum<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> EnumProj<'__pin, T, U> { + unsafe { + match self.get_unchecked_mut() { + Self::Struct { pinned, unpinned } => EnumProj::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProj::Unit, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> EnumProjRef<'__pin, T, U> { + unsafe { + match self.get_ref() { + Self::Struct { pinned, unpinned } => EnumProjRef::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProjRef::Unit, + } + } + } + fn project_replace( + self: ::pin_project_lite::__private::Pin<&mut Self>, + replacement: Self, + ) -> EnumProjReplace<T, U> { + unsafe { + let __self_ptr: *mut Self = self.get_unchecked_mut(); + let __guard = ::pin_project_lite::__private::UnsafeOverwriteGuard { + target: __self_ptr, + value: ::pin_project_lite::__private::ManuallyDrop::new(replacement), + }; + match &mut *__self_ptr { + Self::Struct { pinned, unpinned } => { + let result = EnumProjReplace::Struct { + pinned: ::pin_project_lite::__private::PhantomData, + unpinned: ::pin_project_lite::__private::ptr::read(unpinned), + }; + { + ( + ::pin_project_lite::__private::UnsafeDropInPlaceGuard(pinned), + (), + ); + } + result + } + Self::Unit => EnumProjReplace::Unit, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + Struct: (T, ::pin_project_lite::__private::AlwaysUnpin<U>), + Unit: (), + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Enum<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Enum<T, U> {} +}; +fn main() {} diff --git a/tests/expand/naming/enum-all.rs b/tests/expand/naming/enum-all.rs new file mode 100644 index 0000000..90d6860 --- /dev/null +++ b/tests/expand/naming/enum-all.rs @@ -0,0 +1,17 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project = EnumProj] + #[project_ref = EnumProjRef] + #[project_replace = EnumProjReplace] + enum Enum<T, U> { + Struct { + #[pin] + pinned: T, + unpinned: U, + }, + Unit, + } +} + +fn main() {} diff --git a/tests/expand/naming/enum-mut.expanded.rs b/tests/expand/naming/enum-mut.expanded.rs new file mode 100644 index 0000000..7c4d6af --- /dev/null +++ b/tests/expand/naming/enum-mut.expanded.rs @@ -0,0 +1,57 @@ +use pin_project_lite::pin_project; +enum Enum<T, U> { + Struct { pinned: T, unpinned: U }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProj<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), + }, + Unit, +} +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Enum<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> EnumProj<'__pin, T, U> { + unsafe { + match self.get_unchecked_mut() { + Self::Struct { pinned, unpinned } => EnumProj::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProj::Unit, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + Struct: (T, ::pin_project_lite::__private::AlwaysUnpin<U>), + Unit: (), + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Enum<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Enum<T, U> {} +}; +fn main() {} diff --git a/tests/expand/naming/enum-mut.rs b/tests/expand/naming/enum-mut.rs new file mode 100644 index 0000000..69beecd --- /dev/null +++ b/tests/expand/naming/enum-mut.rs @@ -0,0 +1,15 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project = EnumProj] + enum Enum<T, U> { + Struct { + #[pin] + pinned: T, + unpinned: U, + }, + Unit, + } +} + +fn main() {} diff --git a/tests/expand/naming/enum-none.expanded.rs b/tests/expand/naming/enum-none.expanded.rs new file mode 100644 index 0000000..28ce97d --- /dev/null +++ b/tests/expand/naming/enum-none.expanded.rs @@ -0,0 +1,26 @@ +use pin_project_lite::pin_project; +enum Enum<T, U> { + Struct { pinned: T, unpinned: U }, + Unit, +} +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Enum<T, U> {} + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + Struct: (T, ::pin_project_lite::__private::AlwaysUnpin<U>), + Unit: (), + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Enum<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Enum<T, U> {} +}; +fn main() {} diff --git a/tests/expand/naming/enum-none.rs b/tests/expand/naming/enum-none.rs new file mode 100644 index 0000000..b2e3f9d --- /dev/null +++ b/tests/expand/naming/enum-none.rs @@ -0,0 +1,14 @@ +use pin_project_lite::pin_project; + +pin_project! { + enum Enum<T, U> { + Struct { + #[pin] + pinned: T, + unpinned: U, + }, + Unit, + } +} + +fn main() {} diff --git a/tests/expand/naming/enum-ref.expanded.rs b/tests/expand/naming/enum-ref.expanded.rs new file mode 100644 index 0000000..a1a013b --- /dev/null +++ b/tests/expand/naming/enum-ref.expanded.rs @@ -0,0 +1,57 @@ +use pin_project_lite::pin_project; +enum Enum<T, U> { + Struct { pinned: T, unpinned: U }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +enum EnumProjRef<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), + }, + Unit, +} +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Enum<T, U> { + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> EnumProjRef<'__pin, T, U> { + unsafe { + match self.get_ref() { + Self::Struct { pinned, unpinned } => EnumProjRef::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProjRef::Unit, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + Struct: (T, ::pin_project_lite::__private::AlwaysUnpin<U>), + Unit: (), + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Enum<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Enum<T, U> {} +}; +fn main() {} diff --git a/tests/expand/naming/enum-ref.rs b/tests/expand/naming/enum-ref.rs new file mode 100644 index 0000000..480d592 --- /dev/null +++ b/tests/expand/naming/enum-ref.rs @@ -0,0 +1,15 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project_ref = EnumProjRef] + enum Enum<T, U> { + Struct { + #[pin] + pinned: T, + unpinned: U, + }, + Unit, + } +} + +fn main() {} diff --git a/tests/expand/naming/struct-all.expanded.rs b/tests/expand/naming/struct-all.expanded.rs new file mode 100644 index 0000000..5d2f135 --- /dev/null +++ b/tests/expand/naming/struct-all.expanded.rs @@ -0,0 +1,117 @@ +use pin_project_lite::pin_project; +struct Struct<T, U> { + pinned: T, + unpinned: U, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +struct StructProj<'__pin, T, U> +where + Struct<T, U>: '__pin, +{ + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +struct StructProjRef<'__pin, T, U> +where + Struct<T, U>: '__pin, +{ + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::type_repetition_in_bounds)] +struct StructProjReplace<T, U> { + pinned: ::pin_project_lite::__private::PhantomData<T>, + unpinned: U, +} +#[allow(explicit_outlives_requirements)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Struct<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> StructProj<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_unchecked_mut(); + StructProj { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> StructProjRef<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_ref(); + StructProjRef { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + fn project_replace( + self: ::pin_project_lite::__private::Pin<&mut Self>, + replacement: Self, + ) -> StructProjReplace<T, U> { + unsafe { + let __self_ptr: *mut Self = self.get_unchecked_mut(); + let __guard = ::pin_project_lite::__private::UnsafeOverwriteGuard { + target: __self_ptr, + value: ::pin_project_lite::__private::ManuallyDrop::new(replacement), + }; + let Self { pinned, unpinned } = &mut *__self_ptr; + let result = StructProjReplace { + pinned: ::pin_project_lite::__private::PhantomData, + unpinned: ::pin_project_lite::__private::ptr::read(unpinned), + }; + { + ( + ::pin_project_lite::__private::UnsafeDropInPlaceGuard(pinned), + (), + ); + } + result + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + pinned: T, + unpinned: ::pin_project_lite::__private::AlwaysUnpin<U>, + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Struct<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Struct<T, U> {} + #[forbid(unaligned_references, safe_packed_borrows)] + fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) { + let _ = &this.pinned; + let _ = &this.unpinned; + } +}; +fn main() {} diff --git a/tests/expand/naming/struct-all.rs b/tests/expand/naming/struct-all.rs new file mode 100644 index 0000000..cb08753 --- /dev/null +++ b/tests/expand/naming/struct-all.rs @@ -0,0 +1,14 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project = StructProj] + #[project_ref = StructProjRef] + #[project_replace = StructProjReplace] + struct Struct<T, U> { + #[pin] + pinned: T, + unpinned: U, + } +} + +fn main() {} diff --git a/tests/expand/naming/struct-mut.expanded.rs b/tests/expand/naming/struct-mut.expanded.rs new file mode 100644 index 0000000..aaa41cd --- /dev/null +++ b/tests/expand/naming/struct-mut.expanded.rs @@ -0,0 +1,84 @@ +use pin_project_lite::pin_project; +struct Struct<T, U> { + pinned: T, + unpinned: U, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +struct StructProj<'__pin, T, U> +where + Struct<T, U>: '__pin, +{ + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), +} +#[allow(explicit_outlives_requirements)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct ProjectionRef<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), + } + impl<T, U> Struct<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> StructProj<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_unchecked_mut(); + StructProj { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> ProjectionRef<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_ref(); + ProjectionRef { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + pinned: T, + unpinned: ::pin_project_lite::__private::AlwaysUnpin<U>, + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Struct<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Struct<T, U> {} + #[forbid(unaligned_references, safe_packed_borrows)] + fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) { + let _ = &this.pinned; + let _ = &this.unpinned; + } +}; +fn main() {} diff --git a/tests/expand/naming/struct-mut.rs b/tests/expand/naming/struct-mut.rs new file mode 100644 index 0000000..59db445 --- /dev/null +++ b/tests/expand/naming/struct-mut.rs @@ -0,0 +1,12 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project = StructProj] + struct Struct<T, U> { + #[pin] + pinned: T, + unpinned: U, + } +} + +fn main() {} diff --git a/tests/expand/naming/struct-none.expanded.rs b/tests/expand/naming/struct-none.expanded.rs new file mode 100644 index 0000000..8ab318c --- /dev/null +++ b/tests/expand/naming/struct-none.expanded.rs @@ -0,0 +1,84 @@ +use pin_project_lite::pin_project; +struct Struct<T, U> { + pinned: T, + unpinned: U, +} +#[allow(explicit_outlives_requirements)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct Projection<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), + } + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct ProjectionRef<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), + } + impl<T, U> Struct<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> Projection<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_unchecked_mut(); + Projection { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> ProjectionRef<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_ref(); + ProjectionRef { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + pinned: T, + unpinned: ::pin_project_lite::__private::AlwaysUnpin<U>, + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Struct<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Struct<T, U> {} + #[forbid(unaligned_references, safe_packed_borrows)] + fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) { + let _ = &this.pinned; + let _ = &this.unpinned; + } +}; +fn main() {} diff --git a/tests/expand/naming/struct-none.rs b/tests/expand/naming/struct-none.rs new file mode 100644 index 0000000..e5447c7 --- /dev/null +++ b/tests/expand/naming/struct-none.rs @@ -0,0 +1,11 @@ +use pin_project_lite::pin_project; + +pin_project! { + struct Struct<T, U> { + #[pin] + pinned: T, + unpinned: U, + } +} + +fn main() {} diff --git a/tests/expand/naming/struct-ref.expanded.rs b/tests/expand/naming/struct-ref.expanded.rs new file mode 100644 index 0000000..3d97ab8 --- /dev/null +++ b/tests/expand/naming/struct-ref.expanded.rs @@ -0,0 +1,84 @@ +use pin_project_lite::pin_project; +struct Struct<T, U> { + pinned: T, + unpinned: U, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +struct StructProjRef<'__pin, T, U> +where + Struct<T, U>: '__pin, +{ + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), +} +#[allow(explicit_outlives_requirements)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + struct Projection<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), + } + impl<T, U> Struct<T, U> { + fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> Projection<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_unchecked_mut(); + Projection { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> StructProjRef<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_ref(); + StructProjRef { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + } + #[allow(non_snake_case)] + struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + pinned: T, + unpinned: ::pin_project_lite::__private::AlwaysUnpin<U>, + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Struct<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Struct<T, U> {} + #[forbid(unaligned_references, safe_packed_borrows)] + fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) { + let _ = &this.pinned; + let _ = &this.unpinned; + } +}; +fn main() {} diff --git a/tests/expand/naming/struct-ref.rs b/tests/expand/naming/struct-ref.rs new file mode 100644 index 0000000..6821af8 --- /dev/null +++ b/tests/expand/naming/struct-ref.rs @@ -0,0 +1,12 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project_ref = StructProjRef] + struct Struct<T, U> { + #[pin] + pinned: T, + unpinned: U, + } +} + +fn main() {} diff --git a/tests/expand/pub/enum.expanded.rs b/tests/expand/pub/enum.expanded.rs new file mode 100644 index 0000000..6f190cb --- /dev/null +++ b/tests/expand/pub/enum.expanded.rs @@ -0,0 +1,87 @@ +use pin_project_lite::pin_project; +pub enum Enum<T, U> { + Struct { pinned: T, unpinned: U }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +pub(crate) enum EnumProj<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + unpinned: &'__pin mut (U), + }, + Unit, +} +#[allow(dead_code)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::mut_mut)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::ref_option_ref)] +#[allow(clippy::type_repetition_in_bounds)] +pub(crate) enum EnumProjRef<'__pin, T, U> +where + Enum<T, U>: '__pin, +{ + Struct { + pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + unpinned: &'__pin (U), + }, + Unit, +} +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + impl<T, U> Enum<T, U> { + pub(crate) fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> EnumProj<'__pin, T, U> { + unsafe { + match self.get_unchecked_mut() { + Self::Struct { pinned, unpinned } => EnumProj::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProj::Unit, + } + } + } + pub(crate) fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> EnumProjRef<'__pin, T, U> { + unsafe { + match self.get_ref() { + Self::Struct { pinned, unpinned } => EnumProjRef::Struct { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + }, + Self::Unit => EnumProjRef::Unit, + } + } + } + } + #[allow(non_snake_case)] + pub struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + Struct: (T, ::pin_project_lite::__private::AlwaysUnpin<U>), + Unit: (), + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Enum<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Enum<T, U> {} +}; +fn main() {} diff --git a/tests/expand/pub/enum.rs b/tests/expand/pub/enum.rs new file mode 100644 index 0000000..d3968af --- /dev/null +++ b/tests/expand/pub/enum.rs @@ -0,0 +1,16 @@ +use pin_project_lite::pin_project; + +pin_project! { + #[project = EnumProj] + #[project_ref = EnumProjRef] + pub enum Enum<T, U> { + Struct { + #[pin] + pinned: T, + unpinned: U, + }, + Unit, + } +} + +fn main() {} diff --git a/tests/expand/pub/struct.expanded.rs b/tests/expand/pub/struct.expanded.rs new file mode 100644 index 0000000..7b5826d --- /dev/null +++ b/tests/expand/pub/struct.expanded.rs @@ -0,0 +1,84 @@ +use pin_project_lite::pin_project; +pub struct Struct<T, U> { + pub pinned: T, + pub unpinned: U, +} +#[allow(explicit_outlives_requirements)] +#[allow(single_use_lifetimes)] +#[allow(clippy::unknown_clippy_lints)] +#[allow(clippy::redundant_pub_crate)] +#[allow(clippy::used_underscore_binding)] +const _: () = { + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + pub(crate) struct Projection<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pub pinned: ::pin_project_lite::__private::Pin<&'__pin mut (T)>, + pub unpinned: &'__pin mut (U), + } + #[allow(dead_code)] + #[allow(single_use_lifetimes)] + #[allow(clippy::unknown_clippy_lints)] + #[allow(clippy::mut_mut)] + #[allow(clippy::redundant_pub_crate)] + #[allow(clippy::ref_option_ref)] + #[allow(clippy::type_repetition_in_bounds)] + pub(crate) struct ProjectionRef<'__pin, T, U> + where + Struct<T, U>: '__pin, + { + pub pinned: ::pin_project_lite::__private::Pin<&'__pin (T)>, + pub unpinned: &'__pin (U), + } + impl<T, U> Struct<T, U> { + pub(crate) fn project<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin mut Self>, + ) -> Projection<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_unchecked_mut(); + Projection { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + pub(crate) fn project_ref<'__pin>( + self: ::pin_project_lite::__private::Pin<&'__pin Self>, + ) -> ProjectionRef<'__pin, T, U> { + unsafe { + let Self { pinned, unpinned } = self.get_ref(); + ProjectionRef { + pinned: ::pin_project_lite::__private::Pin::new_unchecked(pinned), + unpinned: unpinned, + } + } + } + } + #[allow(non_snake_case)] + pub struct __Origin<'__pin, T, U> { + __dummy_lifetime: ::pin_project_lite::__private::PhantomData<&'__pin ()>, + pinned: T, + unpinned: ::pin_project_lite::__private::AlwaysUnpin<U>, + } + impl<'__pin, T, U> ::pin_project_lite::__private::Unpin for Struct<T, U> where + __Origin<'__pin, T, U>: ::pin_project_lite::__private::Unpin + { + } + trait MustNotImplDrop {} + #[allow(clippy::drop_bounds, drop_bounds)] + impl<T: ::pin_project_lite::__private::Drop> MustNotImplDrop for T {} + impl<T, U> MustNotImplDrop for Struct<T, U> {} + #[forbid(unaligned_references, safe_packed_borrows)] + fn __assert_not_repr_packed<T, U>(this: &Struct<T, U>) { + let _ = &this.pinned; + let _ = &this.unpinned; + } +}; +fn main() {} diff --git a/tests/expand/pub/struct.rs b/tests/expand/pub/struct.rs new file mode 100644 index 0000000..6659096 --- /dev/null +++ b/tests/expand/pub/struct.rs @@ -0,0 +1,11 @@ +use pin_project_lite::pin_project; + +pin_project! { + pub struct Struct<T, U> { + #[pin] + pub pinned: T, + pub unpinned: U, + } +} + +fn main() {} diff --git a/tests/expandtest.rs b/tests/expandtest.rs new file mode 100644 index 0000000..adf8dde --- /dev/null +++ b/tests/expandtest.rs @@ -0,0 +1,41 @@ +#![cfg(not(miri))] +#![warn(rust_2018_idioms, single_use_lifetimes)] + +use std::{ + env, + process::{Command, ExitStatus, Stdio}, +}; + +#[rustversion::attr(not(nightly), ignore)] +#[test] +fn expandtest() { + let is_ci = env::var_os("CI").is_some(); + let cargo = &*env::var("CARGO").unwrap_or_else(|_| "cargo".into()); + if !has_command(&[cargo, "expand"]) || !has_command(&[cargo, "fmt"]) { + if is_ci { + panic!("expandtest requires rustfmt and cargo-expand") + } + return; + } + + let path = "tests/expand/*/*.rs"; + if is_ci { + macrotest::expand_without_refresh(path); + } else { + env::set_var("MACROTEST", "overwrite"); + macrotest::expand(path); + } +} + +fn has_command(command: &[&str]) -> bool { + Command::new(command[0]) + .args(&command[1..]) + .arg("--version") + .stdin(Stdio::null()) + .stdout(Stdio::null()) + .stderr(Stdio::null()) + .status() + .as_ref() + .map(ExitStatus::success) + .unwrap_or(false) +} diff --git a/tests/lint.rs b/tests/lint.rs index 46ec1df..381bb18 100644 --- a/tests/lint.rs +++ b/tests/lint.rs @@ -7,10 +7,12 @@ #![warn( box_pointers, deprecated_in_future, + disjoint_capture_drop_reorder, elided_lifetimes_in_paths, explicit_outlives_requirements, macro_use_extern_crate, meta_variable_misuse, + missing_abi, missing_copy_implementations, missing_crate_level_docs, missing_debug_implementations, @@ -28,7 +30,7 @@ unused_results, variant_size_differences )] -// absolute_paths_not_starting_with_crate, anonymous_parameters, keyword_idents, pointer_structural_match: forbidden as a part of future_incompatible +// absolute_paths_not_starting_with_crate, anonymous_parameters, keyword_idents, pointer_structural_match, semicolon_in_expressions_from_macros: forbidden as a part of future_incompatible // missing_doc_code_examples, private_doc_tests, invalid_html_tags: warned as a part of rustdoc // unsafe_block_in_unsafe_fn: unstable // unsafe_code: forbidden @@ -37,6 +39,7 @@ #![warn(clippy::all, clippy::pedantic, clippy::nursery)] #![warn(clippy::restriction)] #![allow(clippy::blanket_clippy_restriction_lints)] // this is a test, so enable all restriction lints intentionally. +#![allow(clippy::exhaustive_structs, clippy::exhaustive_enums)] // TODO // Check interoperability with rustc and clippy lints. diff --git a/tests/proper_unpin.rs b/tests/proper_unpin.rs index b1c72c1..668e975 100644 --- a/tests/proper_unpin.rs +++ b/tests/proper_unpin.rs @@ -5,9 +5,10 @@ mod auxiliary; pub mod default { - use pin_project_lite::pin_project; use std::marker::PhantomPinned; + use pin_project_lite::pin_project; + struct Inner<T> { f: T, } diff --git a/tests/test.rs b/tests/test.rs index f4c29ee..d792bab 100644 --- a/tests/test.rs +++ b/tests/test.rs @@ -8,6 +8,7 @@ use core::{ marker::{PhantomData, PhantomPinned}, pin::Pin, }; + use pin_project_lite::pin_project; #[test] @@ -587,6 +588,21 @@ fn trailing_comma() { #[test] fn attrs() { pin_project! { + /// dox1 + #[derive(Clone)] + #[project = StructProj] + #[project_ref = StructProjRef] + /// dox2 + #[derive(Debug)] + /// dox3 + struct Struct { + // TODO + // /// dox4 + f: () + } + } + + pin_project! { #[project = Enum1Proj] #[project_ref = Enum1ProjRef] enum Enum1 { @@ -599,6 +615,7 @@ fn attrs() { pin_project! { /// dox1 + #[derive(Clone)] #[project = Enum2Proj] #[project_ref = Enum2ProjRef] /// dox2 diff --git a/tests/ui/packed.rs b/tests/ui/packed.rs deleted file mode 100644 index 0bccc1f..0000000 --- a/tests/ui/packed.rs +++ /dev/null @@ -1,19 +0,0 @@ -use pin_project_lite::pin_project; - -pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block - #[repr(packed, C)] - struct A { - #[pin] - field: u16, - } -} - -pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block - #[repr(packed(2))] - struct C { - #[pin] - field: u32, - } -} - -fn main() {} diff --git a/tests/ui/packed.stderr b/tests/ui/packed.stderr deleted file mode 100644 index a976163..0000000 --- a/tests/ui/packed.stderr +++ /dev/null @@ -1,55 +0,0 @@ -error: borrow of packed field is unsafe and requires unsafe function or block (error E0133) - --> $DIR/packed.rs:3:1 - | -3 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block -4 | | #[repr(packed, C)] -5 | | struct A { -6 | | #[pin] -7 | | field: u16, -8 | | } -9 | | } - | |_^ - | -note: the lint level is defined here - --> $DIR/packed.rs:3:1 - | -3 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block -4 | | #[repr(packed, C)] -5 | | struct A { -6 | | #[pin] -7 | | field: u16, -8 | | } -9 | | } - | |_^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043> - = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior - = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) - -error: borrow of packed field is unsafe and requires unsafe function or block (error E0133) - --> $DIR/packed.rs:11:1 - | -11 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block -12 | | #[repr(packed(2))] -13 | | struct C { -14 | | #[pin] -15 | | field: u32, -16 | | } -17 | | } - | |_^ - | -note: the lint level is defined here - --> $DIR/packed.rs:11:1 - | -11 | / pin_project! { //~ ERROR borrow of packed field is unsafe and requires unsafe function or block -12 | | #[repr(packed(2))] -13 | | struct C { -14 | | #[pin] -15 | | field: u32, -16 | | } -17 | | } - | |_^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043> - = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior - = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/conflict-drop.rs b/tests/ui/pin_project/conflict-drop.rs index 870059d..870059d 100644 --- a/tests/ui/conflict-drop.rs +++ b/tests/ui/pin_project/conflict-drop.rs diff --git a/tests/ui/conflict-drop.stderr b/tests/ui/pin_project/conflict-drop.stderr index f97c92b..f97c92b 100644 --- a/tests/ui/conflict-drop.stderr +++ b/tests/ui/pin_project/conflict-drop.stderr diff --git a/tests/ui/conflict-unpin.rs b/tests/ui/pin_project/conflict-unpin.rs index f702f06..f702f06 100644 --- a/tests/ui/conflict-unpin.rs +++ b/tests/ui/pin_project/conflict-unpin.rs diff --git a/tests/ui/conflict-unpin.stderr b/tests/ui/pin_project/conflict-unpin.stderr index 546dafd..546dafd 100644 --- a/tests/ui/conflict-unpin.stderr +++ b/tests/ui/pin_project/conflict-unpin.stderr diff --git a/tests/ui/invalid-bounds.rs b/tests/ui/pin_project/invalid-bounds.rs index 64b397a..64b397a 100644 --- a/tests/ui/invalid-bounds.rs +++ b/tests/ui/pin_project/invalid-bounds.rs diff --git a/tests/ui/invalid-bounds.stderr b/tests/ui/pin_project/invalid-bounds.stderr index a565cce..a565cce 100644 --- a/tests/ui/invalid-bounds.stderr +++ b/tests/ui/pin_project/invalid-bounds.stderr diff --git a/tests/ui/invalid.rs b/tests/ui/pin_project/invalid.rs index e0ea61d..e0ea61d 100644 --- a/tests/ui/invalid.rs +++ b/tests/ui/pin_project/invalid.rs diff --git a/tests/ui/invalid.stderr b/tests/ui/pin_project/invalid.stderr index 06f2d79..06f2d79 100644 --- a/tests/ui/invalid.stderr +++ b/tests/ui/pin_project/invalid.stderr diff --git a/tests/ui/overlapping_lifetime_names.rs b/tests/ui/pin_project/overlapping_lifetime_names.rs index 87a737e..87a737e 100644 --- a/tests/ui/overlapping_lifetime_names.rs +++ b/tests/ui/pin_project/overlapping_lifetime_names.rs diff --git a/tests/ui/overlapping_lifetime_names.stderr b/tests/ui/pin_project/overlapping_lifetime_names.stderr index 8a9bb4f..8a9bb4f 100644 --- a/tests/ui/overlapping_lifetime_names.stderr +++ b/tests/ui/pin_project/overlapping_lifetime_names.stderr diff --git a/tests/ui/overlapping_unpin_struct.rs b/tests/ui/pin_project/overlapping_unpin_struct.rs index 1338524..1338524 100644 --- a/tests/ui/overlapping_unpin_struct.rs +++ b/tests/ui/pin_project/overlapping_unpin_struct.rs diff --git a/tests/ui/overlapping_unpin_struct.stderr b/tests/ui/pin_project/overlapping_unpin_struct.stderr index ab76f81..ab76f81 100644 --- a/tests/ui/overlapping_unpin_struct.stderr +++ b/tests/ui/pin_project/overlapping_unpin_struct.stderr diff --git a/tests/ui/pin_project/packed.rs b/tests/ui/pin_project/packed.rs new file mode 100644 index 0000000..507a038 --- /dev/null +++ b/tests/ui/pin_project/packed.rs @@ -0,0 +1,19 @@ +use pin_project_lite::pin_project; + +pin_project! { //~ ERROR reference to packed field is unaligned + #[repr(packed, C)] + struct Packed { + #[pin] + field: u16, + } +} + +pin_project! { //~ ERROR reference to packed field is unaligned + #[repr(packed(2))] + struct PackedN { + #[pin] + field: u32, + } +} + +fn main() {} diff --git a/tests/ui/pin_project/packed.stderr b/tests/ui/pin_project/packed.stderr new file mode 100644 index 0000000..14ffc86 --- /dev/null +++ b/tests/ui/pin_project/packed.stderr @@ -0,0 +1,107 @@ +error: reference to packed field is unaligned + --> $DIR/packed.rs:3:1 + | +3 | / pin_project! { //~ ERROR reference to packed field is unaligned +4 | | #[repr(packed, C)] +5 | | struct Packed { +6 | | #[pin] +7 | | field: u16, +8 | | } +9 | | } + | |_^ + | +note: the lint level is defined here + --> $DIR/packed.rs:3:1 + | +3 | / pin_project! { //~ ERROR reference to packed field is unaligned +4 | | #[repr(packed, C)] +5 | | struct Packed { +6 | | #[pin] +7 | | field: u16, +8 | | } +9 | | } + | |_^ + = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) + +error: reference to packed field is unaligned + --> $DIR/packed.rs:11:1 + | +11 | / pin_project! { //~ ERROR reference to packed field is unaligned +12 | | #[repr(packed(2))] +13 | | struct PackedN { +14 | | #[pin] +15 | | field: u32, +16 | | } +17 | | } + | |_^ + | +note: the lint level is defined here + --> $DIR/packed.rs:11:1 + | +11 | / pin_project! { //~ ERROR reference to packed field is unaligned +12 | | #[repr(packed(2))] +13 | | struct PackedN { +14 | | #[pin] +15 | | field: u32, +16 | | } +17 | | } + | |_^ + = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) + +error: borrow of packed field is unsafe and requires unsafe function or block (error E0133) + --> $DIR/packed.rs:3:1 + | +3 | / pin_project! { //~ ERROR reference to packed field is unaligned +4 | | #[repr(packed, C)] +5 | | struct Packed { +6 | | #[pin] +7 | | field: u16, +8 | | } +9 | | } + | |_^ + | +note: the lint level is defined here + --> $DIR/packed.rs:3:1 + | +3 | / pin_project! { //~ ERROR reference to packed field is unaligned +4 | | #[repr(packed, C)] +5 | | struct Packed { +6 | | #[pin] +7 | | field: u16, +8 | | } +9 | | } + | |_^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043> + = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) + +error: borrow of packed field is unsafe and requires unsafe function or block (error E0133) + --> $DIR/packed.rs:11:1 + | +11 | / pin_project! { //~ ERROR reference to packed field is unaligned +12 | | #[repr(packed(2))] +13 | | struct PackedN { +14 | | #[pin] +15 | | field: u32, +16 | | } +17 | | } + | |_^ + | +note: the lint level is defined here + --> $DIR/packed.rs:11:1 + | +11 | / pin_project! { //~ ERROR reference to packed field is unaligned +12 | | #[repr(packed(2))] +13 | | struct PackedN { +14 | | #[pin] +15 | | field: u32, +16 | | } +17 | | } + | |_^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043> + = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/unpin_sneaky.rs b/tests/ui/pin_project/unpin_sneaky.rs index 984cc2a..984cc2a 100644 --- a/tests/ui/unpin_sneaky.rs +++ b/tests/ui/pin_project/unpin_sneaky.rs diff --git a/tests/ui/unpin_sneaky.stderr b/tests/ui/pin_project/unpin_sneaky.stderr index 39a7745..39a7745 100644 --- a/tests/ui/unpin_sneaky.stderr +++ b/tests/ui/pin_project/unpin_sneaky.stderr diff --git a/tests/ui/unsupported.rs b/tests/ui/pin_project/unsupported.rs index 2f80836..2f80836 100644 --- a/tests/ui/unsupported.rs +++ b/tests/ui/pin_project/unsupported.rs diff --git a/tests/ui/unsupported.stderr b/tests/ui/pin_project/unsupported.stderr index 2cd17df..2cd17df 100644 --- a/tests/ui/unsupported.stderr +++ b/tests/ui/pin_project/unsupported.stderr |