task-local-extensions

Provides a type-safe task-local container for arbitrary data keyed by types.

How to install

Add task-local-extensions to your dependencies

```toml [dependencies]

...

task-local-extensions = "0.1.0" ```

Usage

Extensions is a container that can store up to one value of each type, so you can insert and retrive values by their type:

```rust use tasklocalextensions::Extensions;

let a: i64 = 3; let mut ext = Extensions::new(); ext.insert(a); assert_eq!(ext.get::(), Some(&3)); ```

The crate also provides with_extensions so you set an Extensions instance while running a given task:

```rust use tasklocalextensions::{getlocalitem, setlocalitem, with_extensions, Extensions};

async fn mytask() { let a: i64 = getlocalitem().await.unwrap(0); let msg = format!("The value of a is: {}", a); setlocal_item(msg).await; }

let a: i64 = 3; let (outext, _) = withextensions(Extensions::new().with(a), mytask()).await; let msg = outext.get::().unwrap(); asserteq!(msg.asstr(), "The value of a is: 3"); ```

License

^{Licensed under either of Apache License, Version
2.0 or MIT license at your option.}

_{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.}