show ast using rustic-ap-syntax

gistfile1.txt

extern crate syntax;

use syntax::with_globals;
use syntax::parse::*;
use syntax::source_map::*;
use std::path::Path;

fn main() {
    syntax::with_globals (|| {
        let args: Vec<String> = std::env::args().collect();
        let p = Path::new(&args[1]);
        let s = ParseSess::new(FilePathMapping::empty());
        let r = parse_crate_from_file(&p, &s);
        println!("{:#?}", r);
    })
}