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Introduction

Overview​

Swirl is an open-source, low-level, statically typed programming language.

Kickstart​

The main function is the entry-point of a Swirl program.

fn main(): i32 {
    let a: i32 = 43;  // declarations with `let` can't be reassigned
    
    var b: i32 = 54;
    b = 8; // declarations with `var` CAN be reassigned

    // You need not specify the type in the declaration at all, the compiler can infer it. 
    // See the page about Types to learn more.
    let c = 43;

    return a * b;
}

If command-line arguments are of relevance, one can add a parameter to main and utilize them:

fn main(args: &[str]) {
    ...
    return 0;
}

Note that the name of the parameter is not relevant, but the type is.

Stay informed​