leesiongchan / callbag.rs

An experiment of the callbag spec in Rust

callbag.rs 👜

Experimental callbag implementation in Rust 🦀! Currently attempting to implement some of the core basics (see the list below for progress).

pipe!(
    from_iter(0..10),
    map(|x| x * 3),
    filter(|x| x % 2 == 0),
    map(|x| format!("The number is {}", x)),
    for_each(|x| println!("{}", x))
);

Testing

Run tests with cargo test -- --nocapture to see output.

API

The list below shows what's currently implemented/being attempted.

Source factories

• from_iter
• interval

Sink factories

• for_each

Transformation operators

• map
• scan
• flatten

Filtering operators

• take
• take_until
• take_while
• take_until_interval
• skip
• skip_until
• skip_while
• filter

Combination operators

• merge - variadic with macro merge!
• concat
• combine - tough one, need to flatten tuples

Utilities

• pipe - variadic with macro pipe!