From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- vendor/pin-utils/.cargo-checksum.json | 1 + vendor/pin-utils/Cargo.toml | 22 ++++ vendor/pin-utils/LICENSE-APACHE | 201 ++++++++++++++++++++++++++++++++++ vendor/pin-utils/LICENSE-MIT | 25 +++++ vendor/pin-utils/README.md | 42 +++++++ vendor/pin-utils/src/lib.rs | 17 +++ vendor/pin-utils/src/projection.rs | 100 +++++++++++++++++ vendor/pin-utils/src/stack_pin.rs | 25 +++++ vendor/pin-utils/tests/projection.rs | 27 +++++ vendor/pin-utils/tests/stack_pin.rs | 21 ++++ 10 files changed, 481 insertions(+) create mode 100644 vendor/pin-utils/.cargo-checksum.json create mode 100644 vendor/pin-utils/Cargo.toml create mode 100644 vendor/pin-utils/LICENSE-APACHE create mode 100644 vendor/pin-utils/LICENSE-MIT create mode 100644 vendor/pin-utils/README.md create mode 100644 vendor/pin-utils/src/lib.rs create mode 100644 vendor/pin-utils/src/projection.rs create mode 100644 vendor/pin-utils/src/stack_pin.rs create mode 100644 vendor/pin-utils/tests/projection.rs create mode 100644 vendor/pin-utils/tests/stack_pin.rs (limited to 'vendor/pin-utils') diff --git a/vendor/pin-utils/.cargo-checksum.json b/vendor/pin-utils/.cargo-checksum.json new file mode 100644 index 000000000..971165943 --- /dev/null +++ b/vendor/pin-utils/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"0f8296bda5b928d57bb84443422f21db3aa35d6873ce651297634d80c183dc6b","LICENSE-APACHE":"a4db788775cb25f2da419a7ccd3f1f89c3d2cfa8748fb25257596b88183b4c77","LICENSE-MIT":"28802412d2bfbafe432b305634413b41a984d30fba0df41d30aa2c8a2077c5b1","README.md":"1b0cfd43afdfb6bb718a65f9fa9954b8de3a2638f155ee021465b35f0ae98336","src/lib.rs":"bed1d1c013f78036a7288ac3ebbe07c097d9a5a435b1367085484529d784b4e0","src/projection.rs":"18dbf1a747c3c4eec31768a51e1cfbce2ec83dc80dc44a5a80bb67b21ac5715d","src/stack_pin.rs":"b79661dc21f5ab923d75e3ddb52d43faf68fba7c7d592ec1929d1fd5275d70d8","tests/projection.rs":"04dd66b306e9d43d01a181da38add1ae8b8dee9e1fd16a3a0f39571cbb467f62","tests/stack_pin.rs":"2b2245ef1fb99176dd7fef74601fe6b69d394831e20dcdbd73268b34e17ce032"},"package":"8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"} \ No newline at end of file diff --git a/vendor/pin-utils/Cargo.toml b/vendor/pin-utils/Cargo.toml new file mode 100644 index 000000000..5e2f779d7 --- /dev/null +++ b/vendor/pin-utils/Cargo.toml @@ -0,0 +1,22 @@ +# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO +# +# When uploading crates to the registry Cargo will automatically +# "normalize" Cargo.toml files for maximal compatibility +# with all versions of Cargo and also rewrite `path` dependencies +# to registry (e.g., crates.io) dependencies +# +# If you believe there's an error in this file please file an +# issue against the rust-lang/cargo repository. 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IN NO EVENT +SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/vendor/pin-utils/README.md b/vendor/pin-utils/README.md new file mode 100644 index 000000000..93fdeb6fa --- /dev/null +++ b/vendor/pin-utils/README.md @@ -0,0 +1,42 @@ +# pin-utils + +Utilities for pinning + +[![Build Status](https://travis-ci.com/rust-lang-nursery/pin-utils.svg?branch=master)](https://travis-ci.com/rust-lang-nursery/pin-utils) +[![Crates.io](https://img.shields.io/crates/v/pin-utils.svg)](https://crates.io/crates/pin-utils) + +[Documentation](https://docs.rs/pin-utils) + +## Usage + +First, add this to your `Cargo.toml`: + +```toml +[dependencies] +pin-utils = "0.1.0-alpha.4" +``` + +Now, you can use it: + +```rust +use pin_utils::pin_mut; // And more... +``` + +The current version of pin-utils requires Rust 1.33 or later. + +# License + +This project is licensed under either of + + * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or + http://www.apache.org/licenses/LICENSE-2.0) + * MIT license ([LICENSE-MIT](LICENSE-MIT) or + http://opensource.org/licenses/MIT) + +at your option. + +### Contribution + +Unless you explicitly state otherwise, any contribution intentionally submitted +for inclusion in pin-utils by you, as defined in the Apache-2.0 license, shall be +dual licensed as above, without any additional terms or conditions. diff --git a/vendor/pin-utils/src/lib.rs b/vendor/pin-utils/src/lib.rs new file mode 100644 index 000000000..6198e9823 --- /dev/null +++ b/vendor/pin-utils/src/lib.rs @@ -0,0 +1,17 @@ +//! Utilities for pinning + +#![no_std] +#![warn(missing_docs, missing_debug_implementations)] +#![deny(bare_trait_objects)] +#![allow(unknown_lints)] +#![doc(html_root_url = "https://docs.rs/pin-utils/0.1.0")] + +#[doc(hidden)] +pub mod core_reexport { + pub use core::*; +} + +#[macro_use] +mod stack_pin; +#[macro_use] +mod projection; diff --git a/vendor/pin-utils/src/projection.rs b/vendor/pin-utils/src/projection.rs new file mode 100644 index 000000000..6af90c56b --- /dev/null +++ b/vendor/pin-utils/src/projection.rs @@ -0,0 +1,100 @@ +/// A pinned projection of a struct field. +/// +/// # Safety +/// +/// To make using this macro safe, three things need to be ensured: +/// - If the struct implements [`Drop`], the [`drop`] method is not allowed to +/// move the value of the field. +/// - If the struct wants to implement [`Unpin`], it has to do so conditionally: +/// The struct can only implement [`Unpin`] if the field's type is [`Unpin`]. +/// - The struct must not be `#[repr(packed)]`. +/// +/// # Example +/// +/// ```rust +/// use pin_utils::unsafe_pinned; +/// use std::marker::Unpin; +/// use std::pin::Pin; +/// +/// struct Foo { +/// field: T, +/// } +/// +/// impl Foo { +/// unsafe_pinned!(field: T); +/// +/// fn baz(mut self: Pin<&mut Self>) { +/// let _: Pin<&mut T> = self.field(); // Pinned reference to the field +/// } +/// } +/// +/// impl Unpin for Foo {} // Conditional Unpin impl +/// ``` +/// +/// Note: borrowing the field multiple times requires using `.as_mut()` to +/// avoid consuming the `Pin`. +/// +/// [`Unpin`]: core::marker::Unpin +/// [`drop`]: Drop::drop +#[macro_export] +macro_rules! unsafe_pinned { + ($f:tt: $t:ty) => ( + #[allow(unsafe_code)] + fn $f<'__a>( + self: $crate::core_reexport::pin::Pin<&'__a mut Self> + ) -> $crate::core_reexport::pin::Pin<&'__a mut $t> { + unsafe { + $crate::core_reexport::pin::Pin::map_unchecked_mut( + self, |x| &mut x.$f + ) + } + } + ) +} + +/// An unpinned projection of a struct field. +/// +/// # Safety +/// +/// This macro is unsafe because it creates a method that returns a normal +/// non-pin reference to the struct field. It is up to the programmer to ensure +/// that the contained value can be considered not pinned in the current +/// context. +/// +/// # Example +/// +/// ```rust +/// use pin_utils::unsafe_unpinned; +/// use std::pin::Pin; +/// +/// struct Bar; +/// struct Foo { +/// field: Bar, +/// } +/// +/// impl Foo { +/// unsafe_unpinned!(field: Bar); +/// +/// fn baz(mut self: Pin<&mut Self>) { +/// let _: &mut Bar = self.field(); // Normal reference to the field +/// } +/// } +/// ``` +/// +/// Note: borrowing the field multiple times requires using `.as_mut()` to +/// avoid consuming the [`Pin`]. +/// +/// [`Pin`]: core::pin::Pin +#[macro_export] +macro_rules! unsafe_unpinned { + ($f:tt: $t:ty) => ( + #[allow(unsafe_code)] + fn $f<'__a>( + self: $crate::core_reexport::pin::Pin<&'__a mut Self> + ) -> &'__a mut $t { + unsafe { + &mut $crate::core_reexport::pin::Pin::get_unchecked_mut(self).$f + } + } + ) +} diff --git a/vendor/pin-utils/src/stack_pin.rs b/vendor/pin-utils/src/stack_pin.rs new file mode 100644 index 000000000..8a1ed2c5a --- /dev/null +++ b/vendor/pin-utils/src/stack_pin.rs @@ -0,0 +1,25 @@ +/// Pins a value on the stack. +/// +/// # Example +/// +/// ```rust +/// # use pin_utils::pin_mut; +/// # use core::pin::Pin; +/// # struct Foo {} +/// let foo = Foo { /* ... */ }; +/// pin_mut!(foo); +/// let _: Pin<&mut Foo> = foo; +/// ``` +#[macro_export] +macro_rules! pin_mut { + ($($x:ident),* $(,)?) => { $( + // Move the value to ensure that it is owned + let mut $x = $x; + // Shadow the original binding so that it can't be directly accessed + // ever again. + #[allow(unused_mut)] + let mut $x = unsafe { + $crate::core_reexport::pin::Pin::new_unchecked(&mut $x) + }; + )* } +} diff --git a/vendor/pin-utils/tests/projection.rs b/vendor/pin-utils/tests/projection.rs new file mode 100644 index 000000000..492c26d9a --- /dev/null +++ b/vendor/pin-utils/tests/projection.rs @@ -0,0 +1,27 @@ +use pin_utils::{unsafe_pinned, unsafe_unpinned, pin_mut}; +use std::pin::Pin; +use std::marker::Unpin; + +struct Foo { + field1: T1, + field2: T2, +} + +impl Foo { + unsafe_pinned!(field1: T1); + unsafe_unpinned!(field2: T2); +} + +impl Unpin for Foo {} // Conditional Unpin impl + +#[test] +fn projection() { + let foo = Foo { field1: 1, field2: 2 }; + pin_mut!(foo); + + let x1: Pin<&mut i32> = foo.as_mut().field1(); + assert_eq!(*x1, 1); + + let x2: &mut i32 = foo.as_mut().field2(); + assert_eq!(*x2, 2); +} diff --git a/vendor/pin-utils/tests/stack_pin.rs b/vendor/pin-utils/tests/stack_pin.rs new file mode 100644 index 000000000..4b6758dc1 --- /dev/null +++ b/vendor/pin-utils/tests/stack_pin.rs @@ -0,0 +1,21 @@ +#![forbid(unsafe_code)] // pin_mut! is completely safe. + +use pin_utils::pin_mut; +use core::pin::Pin; + +#[test] +fn stack_pin() { + struct Foo {} + let foo = Foo {}; + pin_mut!(foo); + let _: Pin<&mut Foo> = foo; + + let bar = Foo {}; + let baz = Foo {}; + pin_mut!( + bar, + baz, + ); + let _: Pin<&mut Foo> = bar; + let _: Pin<&mut Foo> = baz; +} -- cgit v1.2.3