// Check what token streams proc macros see when interpolated tokens are passed to them as input. //@ check-pass //@ edition:2018 //@ aux-build:test-macros.rs #![no_std] // Don't load unnecessary hygiene information from std extern crate std; #[macro_use] extern crate test_macros; macro_rules! pass_ident { ($i:ident) => { fn f() { print_bang!($i); } #[print_attr] const $i: u8 = 0; #[derive(Print)] struct $i {} }; } pass_ident!(A); fn main() {}