rust/tests/ui/editions/edition-keywords-2018-2015-parsing.rs
Vadim Petrochenkov c586fe40f1 macro_rules: Add more tests for using tt in addition to ident
Generally, `tt` and `ident` should behave identically, modulo the latter accepting only a subset of token trees.
2024-01-05 19:13:52 +03:00

33 lines
1.0 KiB
Rust

// edition:2018
// aux-build:edition-kw-macro-2015.rs
#![feature(async_closure)]
fn main() {}
#[macro_use]
extern crate edition_kw_macro_2015;
mod module {
pub fn r#async() {}
}
pub fn check_async() {
let mut async = 1; //~ ERROR expected identifier, found keyword `async`
let mut r#async = 1; // OK
r#async = consumes_async!(async); // OK
r#async = consumes_async!(r#async); //~ ERROR no rules expected the token `r#async`
r#async = consumes_async_raw!(async); //~ ERROR no rules expected the token `async`
r#async = consumes_async_raw!(r#async); // OK
if passes_ident!(async) == 1 {} // FIXME: Edition hygiene bug, async here is 2018 and reserved
if passes_ident!(r#async) == 1 {} // OK
if passes_tt!(async) == 1 {} //~ ERROR macro expansion ends with an incomplete expression
if passes_tt!(r#async) == 1 {} // OK
module::async(); //~ ERROR expected identifier, found keyword `async`
module::r#async(); // OK
let _recovery_witness: () = 0; //~ ERROR mismatched types
}