rust/tests/ui/hygiene/fields-definition.rs
2023-01-11 09:32:08 +00:00

23 lines
320 B
Rust

#![feature(decl_macro)]
macro modern($a: ident) {
struct Modern {
a: u8,
$a: u8, // OK
}
}
macro_rules! legacy {
($a: ident) => {
struct Legacy {
a: u8,
$a: u8, //~ ERROR field `a` is already declared
}
}
}
modern!(a);
legacy!(a);
fn main() {}