File: issue-84632-eager-expansion-recursion-limit.rs

package info (click to toggle)
rustc-web 1.70.0%2Bdfsg1-7~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,517,036 kB
  • sloc: xml: 147,962; javascript: 10,210; sh: 8,590; python: 8,220; ansic: 5,901; cpp: 4,635; makefile: 4,006; asm: 2,856
file content (16 lines) | stat: -rw-r--r-- 422 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
// Regression test for #84632: Recursion limit is ignored
// for builtin macros that eagerly expands.

#![recursion_limit = "15"]
macro_rules! a {
    () => ("");
    (A) => (concat!("", a!()));
    (A, $($A:ident),*) => (concat!("", a!($($A),*)))
    //~^ ERROR recursion limit reached
    //~| HELP consider increasing the recursion limit
}

fn main() {
    a!(A, A, A, A, A);
    a!(A, A, A, A, A, A, A, A, A, A, A);
}