File: issue-81555.rs

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//@ check-pass
//@ proc-macro: test-macros.rs
#![feature(stmt_expr_attributes, proc_macro_hygiene)]

extern crate test_macros;

use test_macros::identity_attr;

#[identity_attr]
fn main() {
    let _x;
    let y = ();
    #[identity_attr]
    _x = y;
}