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
72
73
74
75
76
77
78
79
80
|
//@ edition:2021
// ignore-tidy-linelength
#![warn(rust_2024_guarded_string_incompatible_syntax)]
macro_rules! demo2 {
( $a:tt $b:tt ) => { println!("two tokens") };
}
macro_rules! demo3 {
( $a:tt $b:tt $c:tt ) => { println!("three tokens") };
}
macro_rules! demo4 {
( $a:tt $b:tt $c:tt $d:tt ) => { println!("four tokens") };
}
macro_rules! demo5 {
( $a:tt $b:tt $c:tt $d:tt $e:tt ) => { println!("five tokens") };
}
macro_rules! demo7 {
( $a:tt $b:tt $c:tt $d:tt $e:tt $f:tt $g:tt ) => { println!("seven tokens") };
}
fn main() {
demo3!(## "foo");
//~^ WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
demo4!(### "foo");
//~^ WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
demo4!(## "foo"#);
//~^ WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
demo7!(### "foo"###);
//~^ WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
demo5!(###"foo"#);
//~^ WARNING parsed as a guarded string in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING parsed as a guarded string in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING parsed as a guarded string in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
demo5!(#"foo"###);
//~^ WARNING parsed as a guarded string in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
demo4!("foo"###);
//~^ WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
//~| WARNING reserved token in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
// Non-ascii identifiers
demo2!(Ñ"foo");
//~^ ERROR prefix `Ñ` is unknown
demo4!(Ñ#""#);
//~^ ERROR prefix `Ñ` is unknown
//~| WARNING parsed as a guarded string in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
demo3!(🙃#"");
//~^ ERROR identifiers cannot contain emoji
//~| WARNING parsed as a guarded string in Rust 2024 [rust_2024_guarded_string_incompatible_syntax]
//~| WARNING hard error in Rust 2024
}
|
