mirror of
https://github.com/rust-lang/rust
synced 2024-09-30 22:04:36 +00:00
21 lines
599 B
Rust
21 lines
599 B
Rust
//@ run-pass
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#![allow(unused_macros)]
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macro_rules! foo { ($x:pat | $y:pat) => {} } // should be ok
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macro_rules! bar { ($($x:pat)+ | $($y:pat)+) => {} } // should be ok
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macro_rules! qux { ($x:pat, $y:pat) => {} } // should be ok
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macro_rules! match_any {
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( $expr:expr , $( $( $pat:pat )|+ => $expr_arm:expr ),+ ) => { // should be ok
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match $expr {
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$(
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$( $pat => $expr_arm, )+
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)+
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}
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};
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}
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fn main() {
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let result: Result<i64, i32> = Err(42);
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let int: i64 = match_any!(result, Ok(i) | Err(i) => i.into());
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assert_eq!(int, 42);
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}
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