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Doublets

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Example

A basic operations in doublets:

use doublets::{data, mem, unit, Doublets, DoubletsExt, Links};

fn main() -> Result<(), doublets::Error<usize>> {
    // use file as memory for doublets
    let mem = mem::FileMapped::from_path("db.links")?;
    let mut store = unit::Store::<usize, _>::new(mem)?;

    // create 1: 1 1 - it's point: link where source and target it self
    let point = store.create_link(1, 1)?;

    // `any` constant denotes any link
    let any = store.constants().any;

    // print all store from store where (index: any, source: any, target: any)
    store.each_iter([any, any, any]).for_each(|link| {
        println!("{link:?}");
    });

    // delete point with handler (Link, Link)
    store
        .delete_with(point, |before, after| {
            println!("delete: {before:?} => {after:?}");
            // track issue: https://github.com/linksplatform/doublets-rs/issues/4
            data::Flow::Continue
        })
        .map(|_| ())
}

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  • Rust 99.8%
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