mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
21 lines
677 B
Rust
21 lines
677 B
Rust
// This tests the parser recovery in `recover_intersection_pat`
|
|
// and serves as a regression test for the diagnostics issue #65400.
|
|
//
|
|
// The general idea is that for `$pat_lhs @ $pat_rhs` where
|
|
// `$pat_lhs` is not generated by `ref? mut? $ident` we want
|
|
// to suggest either switching the order or note that intersection
|
|
// patterns are not allowed.
|
|
|
|
fn main() {
|
|
let s: Option<u8> = None;
|
|
|
|
match s {
|
|
Some(x) @ Some(y) => {}
|
|
//~^ ERROR left-hand side of `@` must be a binding
|
|
//~| interpreted as a pattern, not a binding
|
|
//~| also a pattern
|
|
//~| NOTE bindings are `x`, `mut x`, `ref x`, and `ref mut x`
|
|
_ => {}
|
|
}
|
|
}
|