40 lines
1.5 KiB
Rust
40 lines
1.5 KiB
Rust
//@ run-rustfix
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//@ aux-build:or-pattern.rs
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#![deny(rust_2021_incompatible_or_patterns)]
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#![allow(unused_macros)]
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#[macro_use]
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extern crate or_pattern;
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macro_rules! foo { ($x:pat_param | $y:pat) => {} }
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//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
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//~| WARN this is accepted in the current edition
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macro_rules! bar { ($($x:pat_param)+ | $($y:pat)+) => {} }
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//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
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//~| WARN this is accepted in the current edition
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macro_rules! baz { ($x:pat_param | $y:pat_param) => {} } // should be ok
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macro_rules! qux { ($x:pat_param | $y:pat) => {} } // should be ok
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macro_rules! ogg { ($x:pat_param | $y:pat_param) => {} }
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//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
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//~| WARN this is accepted in the current edition
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macro_rules! match_any {
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( $expr:expr , $( $( $pat:pat_param )|+ => $expr_arm:expr ),+ ) => {
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//~^ ERROR the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro
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//~| WARN this is accepted in the current edition
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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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a!(1|);
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}
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