https://github.com/neolegends/memselect

No-std compatible memoizing selectors for Rust
https://github.com/neolegends/memselect

compose memoization selector

Last synced: 11 months ago
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No-std compatible memoizing selectors for Rust

• Host: GitHub
• URL: https://github.com/neolegends/memselect
• Owner: NeoLegends
• License: mit
• Created: 2018-06-16T11:47:33.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2018-07-23T08:10:18.000Z (almost 8 years ago)
• Last Synced: 2025-04-01T10:54:39.568Z (about 1 year ago)
• Topics: compose, memoization, selector
• Language: Rust
• Size: 6.84 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# memselect

![Travis](https://img.shields.io/travis/NeoLegends/memselect.svg)

No-std compatible memoizing selectors for Rust.

Memselect allows you to create efficient selectors for memoizing expensive computations. The selectors can be composed to create higher-level selectors that benefit from memoization all the way down. Monomorphization ensures efficient runtime behavior.

## Example

```rust

use memselect::{new1, new2, Selector2};

let mut computations = 0;

{

    let base = new1(|num: u32| num, |num| num * 2);

    let mut selector = new2(

        base, // You can nest selectors

        |num: u32| num * 3,

        |num1, num2| { // This function gets the output of `base` and the fn above

            computations += 1;

            (*num1, *num2)

        },

    );

    assert_eq!(selector.select(2, 3), (4, 9));

    assert_eq!(selector.select(2, 3), (4, 9));

}

// Value was computed only once

assert_eq!(computations, 1);

```