File: remove-extern-crate.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (51 lines) | stat: -rw-r--r-- 1,283 bytes parent folder | download | duplicates (6)
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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
//@ run-rustfix
//@ edition:2018
//@ check-pass
//@ aux-build:remove-extern-crate.rs
//@ compile-flags:--extern remove_extern_crate

#![warn(rust_2018_idioms)]
#![allow(dropping_copy_types)]
#![allow(unused_imports)]

extern crate core; //~ WARNING unused extern crate
// Shouldn't suggest changing to `use`, as `another_name`
// would no longer be added to the prelude which could cause
// compilation errors for imports that use `another_name` in other
// modules. See #57672.
extern crate core as another_name;
use remove_extern_crate;
#[macro_use]
extern crate remove_extern_crate as something_else;

// Shouldn't suggest changing to `use`, as the `alloc`
// crate is not in the extern prelude - see #54381.
extern crate alloc;

fn main() {
    another_name::mem::drop(3);
    another::foo();
    with_visibility::foo();
    remove_extern_crate::foo!();
    bar!();
    alloc::vec![5];
}

mod another {
    extern crate core; //~ WARNING `extern crate` is not idiomatic
    use remove_extern_crate;

    pub fn foo() {
        core::mem::drop(4);
        remove_extern_crate::foo!();
    }
}

mod with_visibility {
    pub extern crate core; //~ WARNING `extern crate` is not idiomatic

    pub fn foo() {
        core::mem::drop(4);
        remove_extern_crate::foo!();
    }
}