#!/usr/bin/env conlang
// This is a Conlang file. 

// This is a function. It can be called with the call operator.
// The function called `main` is the program's entrypoint
// fn main() -> (&str, bool, i128)

const main = fn () {
    // An if expression is like the ternary conditional operator in C
    let y = if 10 < 50 {
        "\u{1f988}"
    } else {
        "x"
    };
    
    // A `while` expression is like the while-else construct in Python,
    // but it returns a value via the `break` keyword
    let z = while false {
        // do a thing repeatedly
        break true
    } else {
        // If `while` does not `break`, fall through to the `else` expression
        false
    };
    // The same is true of `for` expressions!
    // let w = for idx in 0..100 {
    //     if idx > 2 * 2 {
    //         break idx
    //     }
    // } else {
    //     12345
    // };


    // desugars to
    {
        let _pass = || if idx > 2 * 2 { break idx };
        let _body = || { 12345 };
        let _it = 0..100;
        loop if let idx = _it.next() _pass() else _fail()
    };


    // A block evaluates to its last expression,
    // or Empty if there is none
    // (🦈, false, 5)
    (y, z, w)
}