File: derive-cfg-nested-tokens.rs

package info (click to toggle)
rustc 1.89.0%2Bdfsg1-1~bpo13%2B2
  • links: PTS, VCS
  • area: main
  • in suites: trixie-backports
  • size: 906,632 kB
  • sloc: xml: 158,148; python: 34,888; javascript: 19,595; sh: 19,221; ansic: 13,046; cpp: 7,144; asm: 4,376; makefile: 692; lisp: 174; sql: 15
file content (23 lines) | stat: -rw-r--r-- 542 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
// A regression test for issue #81099.

//@ check-pass
//@ proc-macro:test-macros.rs

#![feature(stmt_expr_attributes)]
#![feature(proc_macro_hygiene)]

#[macro_use]
extern crate test_macros;

#[derive(Clone, Copy)]
struct S {
    // `print_args` runs twice
    // - on eagerly configured `S` (from `impl Copy`), only 11 should be printed
    // - on non-configured `S` (from `struct S`), both 10 and 11 should be printed
    field: [u8; #[print_attr] {
        #[cfg(false)] { 10 }
        #[cfg(not(FALSE))]  { 11 }
    }],
}

fn main() {}