Import 'pin-project' package version 0.4.16 am: 6f3e9271b1 am: 0d926734e2

Change-Id: I0504abb58778bbeb24f2677e3d8d993852a23f86
tree: c0d427205c0f0002d86155721cc4f8de67c4fbe5
  1. .github/
  2. ci/
  3. examples/
  4. src/
  5. tests/
  6. .editorconfig
  7. .gitattributes
  8. .gitignore
  9. .rustfmt.toml
  10. Android.bp
  11. Cargo.toml
  12. Cargo.toml.orig
  13. CHANGELOG.md
  14. ci.sh
  15. compiletest.sh
  16. LICENSE-APACHE
  17. LICENSE-MIT
  18. METADATA
  19. MODULE_LICENSE_APACHE2
  20. OWNERS
  21. README.md
README.md

pin-project

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A crate for safe and ergonomic pin-projection.

Documentation

Examples

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 a projection struct covering all the fields.

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 foo(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 API documentation for more details.

Also, there are examples and generated code of each feature in examples directory.

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.