3 stable releases

1.0.2 Aug 2, 2020
1.0.0 Aug 1, 2020

#1714 in Algorithms

MIT license

7KB
117 lines

lazy_futuristic

ci crates.io docs.rs semantic-release

Initialize variables lazily, futuristically.

Usage

See the documentation.

Hacking

This repository uses semantic-release for automated release and crate publishing. Please look at Angular commit convention.

To test this crate:

cargo test

License

MIT.


lib.rs:

Initialize variables lazily. Instead of requiring a closure to initialize the value, caller can acts based on returned ValueOrSetter.

Example

use lazy_futuristic::Lazy;
use lazy_futuristic::ValueOrSetter::*;

let lazy_number: Lazy<i32> = Lazy::new();
let number = match lazy_number.get_or_set().await {
    Value(value) => value,
    Setter(setter) => setter.set(10),
};

assert_eq!(*number, 10);

Dependencies

~1MB
~16K SLoC