anyrust

A library that provides a type system as flexible and powerful as Javascript.

Usage

Usage is simple and intuitive. All you have to do is box the value into the anyrust::Any type and use it appropriately.

Below is a simple example.

use anyrust::*;

fn main() {
    let a = any(5);
    let b = any("10");
    let result = a + b;

    println!("result: {result}"); // result: 510
}

Primitives

The basic integer type, basic float type, boolean type, and string type support mutual conversion with Any without any problem.

Array

Arrays are supported through the anyrust::Array type. This is compatible with Vec<Any>.

    let mut arr = array![1, 2, 3, 4, 5];
    arr.push(4444);
    arr.push("foo");

    for e in arr {
        println!("{e}");
    }

Map

KV Map is supported through the anyrust::Map type. This is compatible with HashMap<Any,Any>.

    let mut map = map!{
        "name" => "John Doe", 
        "age" => 30,
    };
    map.set("is_adult", true);

    println!("{}", map.to_string());

    for (k, v) in map.to_map() {
        println!("{}: {}", k, v);
    }

Function

Function types are provided through the Function type. You can easily create it with the function! macro.

    let add = function!(lhs, rhs => {
        lhs + rhs
    });

    let result = add.call(array![1, 2]);
    println!("Result: {}", result);

    let four: Any = function!( => {
        let sum = any(4444);
        sum
    });

    let result = four.call(array![]);
    println!("Result: {}", result);

You can also use function composition through the >> operator.

    let add = function!(lhs, rhs => {
        println!("lhs: {}, rhs: {}", lhs, rhs);
        lhs + rhs
    });

    let negative = function!(num => {
        num * any(-1)
    });

    let composite = add >> negative;

    let result = composite.call(params![1, 2]);

    println!("Result: {}", result); // -3