[rustc.git] / vendor / structopt / examples / negative_flag.rs

//! How to add `no-thing` flag which is `true` by default and
//! `false` if passed.

use structopt::StructOpt;

#[derive(Debug, StructOpt)]
struct Opt {
    #[structopt(long = "no-verbose", parse(from_flag = std::ops::Not::not))]
    verbose: bool,
}

fn main() {
    let cmd = Opt::from_args();
    println!("{:#?}", cmd);
}
Commit	Line	Data
f20569fa XL	1	//! How to add `no-thing` flag which is `true` by default and
	2	//! `false` if passed.
	3
	4	use structopt::StructOpt;
	5
	6	#[derive(Debug, StructOpt)]
	7	struct Opt {
	8	#[structopt(long = "no-verbose", parse(from_flag = std::ops::Not::not))]
	9	verbose: bool,
	10	}
	11
	12	fn main() {
	13	let cmd = Opt::from_args();
	14	println!("{:#?}", cmd);
	15	}