mexus / unzip-n

Procedural macro to generate `unzip` for iterators over n-sized tuples

unzip-n

Procedural macro for unzipping iterators-over-n-length-tuples into n collections.

Here's a brief example of what it is capable of:

use unzip_n::unzip_n;

unzip_n!(pub 3);
// // Or simply leave the visibility modifier absent for inherited visibility
// // (which usually means "private").
// unzip_n!(3);

fn main() {
    let v = vec![(1, 2, 3), (4, 5, 6)];
    let (v1, v2, v3) = v.into_iter().unzip_n_vec();

    assert_eq!(v1, &[1, 4]);
    assert_eq!(v2, &[2, 5]);
    assert_eq!(v3, &[3, 6]);
}

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

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.

License: MIT/Apache-2.0

unzip-n's Issues

Please make generated trait pub

Please make generated trait pub, so that it can be used from other modules :)

Produce trait with custom name

It happens for me that I have to share generated traits across modules. Better if the trait name can be specified explicitly. For example,

// generates `trait MyName<Type_0, Type_1, Type_2> {..}`
named_unzip_n!(MyName, 3);

// another module
use utils::MyName;

Also, it would save me some time if the crate could have generated traits out of box.