blob: b0d56e9bb1ef0a5bd97923bf1b572401c1df7e38 (
plain)
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
|
// run-rustfix
// aux-build:or-pattern.rs
#![deny(rust_2021_incompatible_or_patterns)]
#![allow(unused_macros)]
#[macro_use]
extern crate or_pattern;
macro_rules! foo { ($x:pat_param | $y:pat) => {} }
//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
//~| WARN this is accepted in the current edition
macro_rules! bar { ($($x:pat_param)+ | $($y:pat)+) => {} }
//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
//~| WARN this is accepted in the current edition
macro_rules! baz { ($x:pat_param | $y:pat_param) => {} } // should be ok
macro_rules! qux { ($x:pat_param | $y:pat) => {} } // should be ok
macro_rules! ogg { ($x:pat_param | $y:pat_param) => {} }
//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
//~| WARN this is accepted in the current edition
macro_rules! match_any {
( $expr:expr , $( $( $pat:pat_param )|+ => $expr_arm:expr ),+ ) => {
//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
//~| WARN this is accepted in the current edition
match $expr {
$(
$( $pat => $expr_arm, )+
)+
}
};
}
fn main() {
let result: Result<i64, i32> = Err(42);
let int: i64 = match_any!(result, Ok(i) | Err(i) => i.into());
assert_eq!(int, 42);
a!(1|);
}
|
