# ARC AST
```rust
#[macro_use]
extern crate arc_ast as arc;
use arc::{Arc, Getter};
#[test]
fn test() {
println!("Null: {}", Arc::new());
println!("Boolean: {}", Arc::new_boolean(true));
println!("Boolean: {}", Arc::new_boolean(false));
println!("Cite: {}", Arc::new_cite(vec!["father".to_string(), "a.b".to_string()]));
}
#[test]
fn test_list() {
let l = list!["0", 2, 3, 1.0, 2.0, 3f64, list![false, true]];
assert_eq!(l[-1][-1], true);
assert_eq!(l.get(0).unwrap(), "0")
}
#[test]
fn test_dict() {
let d = dict! {
"boolean": true,
"string": "hello world",
"list": list![],
"null": Arc::Null,
};
println!("{}", d);
}
```