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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
//@ edition:2018
#![deny(unused_extern_crates)]
#![feature(test)]
extern crate core;
//~^ ERROR unused extern crate
//~| HELP remove
extern crate core as x;
//~^ ERROR unused extern crate
//~| HELP remove
extern crate proc_macro;
#[macro_use]
extern crate test;
pub extern crate test as y;
pub extern crate alloc;
pub(crate) extern crate alloc as a;
pub(crate) extern crate alloc as b;
mod foo {
pub(in crate::foo) extern crate alloc as c;
pub(super) extern crate alloc as d;
extern crate core;
//~^ ERROR unused extern crate
//~| HELP remove
extern crate core as x;
//~^ ERROR unused extern crate
//~| HELP remove
pub extern crate test;
pub extern crate test as y;
mod bar {
extern crate core;
//~^ ERROR unused extern crate
//~| HELP remove
extern crate core as x;
//~^ ERROR unused extern crate
//~| HELP remove
pub(in crate::foo::bar) extern crate alloc as e;
fn dummy() {
e::string::String::new();
}
}
fn dummy() {
c::string::String::new();
d::string::String::new();
}
}
fn main() {
a::string::String::new();
b::string::String::new();
proc_macro::TokenStream::new();
}
|
