1 use rustc_expand::base;
4 use syntax::tokenstream::TokenStream;
6 pub fn expand_log_syntax<'cx>(
7 _cx: &'cx mut base::ExtCtxt<'_>,
10 ) -> Box<dyn base::MacResult + 'cx> {
11 println!("{}", print::pprust::tts_to_string(tts));
13 // any so that `log_syntax` can be invoked as an expression and item.
14 base::DummyResult::any_valid(sp)