Android R Beta 2
Upgrade rust/crates/pin-project to 0.4.22

* Keep local change in src/lib.rs

Test: make
Change-Id: I63ca4a3f247df2028bcb6cb849823b296865f444
78 files changed
tree: 99470e8e8e4787e90b156f71bafac98438d6c39a
  1. .editorconfig
  2. .gitattributes
  3. .github/
  4. .gitignore
  5. Android.bp
  6. CHANGELOG.md
  7. Cargo.toml
  8. Cargo.toml.orig
  9. LICENSE-APACHE
  10. LICENSE-MIT
  11. METADATA
  12. MODULE_LICENSE_APACHE2
  13. OWNERS
  14. README.md
  15. ci.sh
  16. ci/
  17. examples/
  18. rustfmt.toml
  19. src/
  20. tests/
README.md

pin-project

crates-badge docs-badge license-badge rustc-badge

A crate for safe and ergonomic pin-projection.

Usage

Add this to your Cargo.toml:

[dependencies]
pin-project = "0.4"

The current pin-project requires Rust 1.34 or later.

Examples

#[pin_project] attribute creates projection types covering all the fields of struct or enum.

use pin_project::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
    }
}

code like this will be generated

See documentation for more details, and see examples directory for more examples and generated code.

Related Projects

  • pin-project-lite: A lightweight version of pin-project written with declarative macros.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.