Error

Aborts the current call stack and prints an error message to Creator Tools.

fun error(_ message: String) -> ()

Example

// Returns the new balance after the withdraw
fun withdraw(_ amount: Int, balance: Int) -> (Int) {
    if amount > balance {
        error("cannot withdraw more than \{balance}")
    }
    // Not reached if error was called.
    return balance - amount
}

var balance = withdraw(100, balance: 50)