5 #![warn(rust_2021_prefixes_incompatible_syntax)]
12 ($a:tt $b:tt $c:tt) => {};
17 //~^ WARNING prefix `z` is unknown [rust_2021_prefixes_incompatible_syntax]
18 //~| WARNING hard error in Rust 2021
20 //~^ WARNING prefix `prefix` is unknown [rust_2021_prefixes_incompatible_syntax]
21 //~| WARNING hard error in Rust 2021
23 //~^ WARNING prefix `hey` is unknown [rust_2021_prefixes_incompatible_syntax]
24 //~| WARNING hard error in Rust 2021
26 //~^ WARNING prefix `hey` is unknown [rust_2021_prefixes_incompatible_syntax]
27 //~| WARNING hard error in Rust 2021
31 (# name = # kind # value) => {};
36 //~^ WARNING prefix `kind` is unknown [rust_2021_prefixes_incompatible_syntax]
37 //~| WARNING hard error in Rust 2021