ruchy 4.1.1

A systems scripting language that transpiles to idiomatic Rust with extreme quality engineering
Documentation 
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// Test function definitions and calls
println("Testing functions...")

// Simple function
fun add(a: i32, b: i32) -> i32 {
    a + b
}

println(f"add(3, 4) = {add(3, 4)}")

// Function with default parameters
fun greet(name: String, greeting: String = "Hello") -> String {
    f"{greeting}, {name}!"
}

println(greet("Alice"))
println(greet("Bob", "Hi"))

// Higher-order function
fun apply_twice(f: fn(i32) -> i32, x: i32) -> i32 {
    f(f(x))
}

fun double(x: i32) -> i32 {
    x * 2
}

println(f"apply_twice(double, 3) = {apply_twice(double, 3)}")

// Lambda functions
let square = |x| x * x
println(f"square(5) = {square(5)}")

let add_one = |x| x + 1
let numbers = [1, 2, 3, 4, 5]
let incremented = numbers.map(add_one)
println(f"Incremented: {incremented}")

// Recursive function
fun factorial(n: i32) -> i32 {
    if n <= 1 {
        1
    } else {
        n * factorial(n - 1)
    }
}

println(f"factorial(5) = {factorial(5)}")

println("Function tests completed!")