Linq in Rust

Linq query in Rust (created by macros).

• Inspired by LINQ in .NET.
• What's LINQ

This project is under development!

Quick Start

This is an example:

```rust use linq::linq;

fn try_linq(){ let x = 1..100;

let mut y: Vec<i32> = x.clone().filter(|p| p <= &5).collect();
y.sort_by_key(|t| -t);
let y: Vec<i32> = y.into_iter().map(|t| t * 2).collect();

let e: Vec<i32> =
    linq!(from p; in x.clone(); where p <= &5; orderby -p; select p * 2).collect();

assert_eq!(e, y);

} ```

If you are familier with LINQ in C#, you will find this easy to use.

Linq Keywords

• [x] from
• [x] in
• [x] select
• [x] where
• [x] orderby

Query Operators

All italic items mean they are not in roadmap. Happy for your suggestions.

• [x] where => filter
• [x] select => map
• [ ] select_many
• [x] skip => skip
• [x] skipwhile => skipwhile
• [x] take => take
• [x] takewhile => takewhile
• [ ] join
• [ ] group_join
• [x] concate => chain
• [ ] order_by
• [ ] order_by_descending
• [ ] then_by
• [ ] then_by_descending
• [x] reverse => rev
• [ ] group_by
• [ ] distinct
• [ ] union
• [ ] intersect
• [ ] except
• [x] first => next
• [ ] single
• [x] element_at => nth
• [x] all => all
• [x] any => any
• [ ] contains
• [x] count => count
• [ ] sum
• [ ] min
• [ ] max
• [ ] average
• [ ] aggregate

Development

We need more unit-test samples. If you have any ideas, open issues to tell us.

sh $ cargo test