print('-- test functions --')

fn add(a, b) {
    return a + b
}
fn add2(a, b) {
    let c := a + b
    return c
}
fn mult(a, b) {
    return a * b
}
fn noArgs() {
    let url := 'basdfasdf'
    let second := 2 + 3
    return second
}
fn empty() {}
fn empty2() {}
fn empty3() {}
fn noReturn() {
    let a := 1
    let b := 2
    let c := a + b
}
fn emptyReturn() {
    return
}
fn emptyReturnBeforeOtherStuff() {
    return
    ; 2 + 2
}
fn emptyReturnBeforeOtherStuffNoSemicolon() {
    // This will return 4 because whitespace is omitted
    return
    2 + 2
}
fn ifThenReturn() {
    // make sure this is not a placeholder {return}
    if (false) {
        return
    }
    return 4
}

print(add(3, 4))
print(add(3, 4) + 100 + add(1, 1))
print(noArgs() ?? -1)
print(empty() ?? -1)
print(empty2() ?? -1)
print(empty3() ?? -1)
print(noReturn() ?? -1)
print(emptyReturn() ?? -1)
print(emptyReturnBeforeOtherStuff() ?? -1)
print(emptyReturnBeforeOtherStuffNoSemicolon() ?? -1)
print(ifThenReturn() ?? -1)

print(mult(add(3, 4) + 100 + add(2, 1), 2))
print(mult(add2(3, 4) + 100 + add2(2, 1), 10))