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