mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 07:44:10 +00:00
20 lines
475 B
Rust
20 lines
475 B
Rust
// Ensure that lifetime parameter names are modernized before we check for
|
|
// duplicates.
|
|
|
|
#![feature(decl_macro, rustc_attrs)]
|
|
|
|
#[rustc_macro_transparency = "semitransparent"]
|
|
macro m($a:lifetime) {
|
|
fn g<$a, 'a>() {} //~ ERROR the name `'a` is already used for a generic parameter
|
|
}
|
|
|
|
#[rustc_macro_transparency = "transparent"]
|
|
macro n($a:lifetime) {
|
|
fn h<$a, 'a>() {} //~ ERROR the name `'a` is already used for a generic parameter
|
|
}
|
|
|
|
m!('a);
|
|
n!('a);
|
|
|
|
fn main() {}
|