File: shallow.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-2
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 934,168 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (33 lines) | stat: -rw-r--r-- 657 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
//@ compile-flags: -Zfmt-debug=shallow
//@ run-pass
#![feature(fmt_debug)]
#![allow(dead_code)]
#![allow(unused)]

#[derive(Debug)]
struct Foo {
    bar: u32,
    bomb: Bomb,
}

#[derive(Debug)]
enum Baz {
    Quz,
}

struct Bomb;

impl std::fmt::Debug for Bomb {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        panic!()
    }
}

fn main() {
    let s = format!("Debug is '{:?}' and '{:#?}'", Foo { bar: 1, bomb: Bomb }, Baz::Quz);
    assert_eq!("Debug is 'Foo' and 'Quz'", s);

    let f = 3.0;
    let s = format_args!("{:?}{:#?}{f:?}", 1234, cfg!(fmt_debug = "shallow")).to_string();
    assert_eq!("1234true3.0", s);
}