mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-15 01:55:03 +00:00
25 lines
652 B
Rust
25 lines
652 B
Rust
// Proc macros using `mixed_site` spans exhibit usual properties of `macro_rules` hygiene.
|
|
|
|
// aux-build:mixed-site-span.rs
|
|
|
|
#[macro_use]
|
|
extern crate mixed_site_span;
|
|
|
|
struct ItemUse;
|
|
|
|
fn main() {
|
|
'label_use: loop {
|
|
let local_use = 1;
|
|
proc_macro_rules!();
|
|
//~^ ERROR use of undeclared label `'label_use`
|
|
//~| ERROR cannot find value `local_use` in this scope
|
|
ItemDef; // OK
|
|
local_def; //~ ERROR cannot find value `local_def` in this scope
|
|
}
|
|
}
|
|
|
|
macro_rules! pass_dollar_crate {
|
|
() => (proc_macro_rules!($crate);) //~ ERROR cannot find type `ItemUse` in crate `$crate`
|
|
}
|
|
pass_dollar_crate!();
|