rune 0.14.2

The Rune Language, an embeddable dynamic programming language for Rust.
Documentation 
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#![allow(clippy::unit_cmp)]

prelude!();

#[test]
fn test_template_string() {
    let out: String = eval(
        r#"
        let name = "John Doe";
        `Hello ${name}, I am ${1 - 10} years old!`
        "#,
    );
    assert_eq!(out, "Hello John Doe, I am -9 years old!");

    // Contrived expression with an arbitrary sub-expression.
    // This tests that the temporary variables used during calculations do not
    // accidentally clobber the scope.
    let out: String = eval(
        r#"
        let name = "John Doe";

        `Hello ${name}, I am ${{
            let a = 20;
            a += 2;
            a
        }} years old!`
        "#,
    );
    assert_eq!(out, "Hello John Doe, I am 22 years old!");
}

#[test]
fn test_complex_field_access() {
    let out: Option<i64> = eval(
        r#"
        fn foo() {
            #{hello: #{world: 42}}
        }

        Some((foo()).hello["world"])
    "#,
    );
    assert_eq!(out, Some(42));
}