2 // This file is used to test the behavior of the early-pass syntax warnings.
3 // If macro syntax is stabilized, replace with a different unstable syntax.
6 //~^ ERROR: `macro` is experimental
11 macro_rules! identity {
12 ($($x:tt)*) => ($($x)*);
17 //~^ ERROR: `macro` is experimental
22 macro d() {} // No error