//@ force-host #[macro_export] macro_rules! make_it { ($name:ident) => { #[proc_macro] pub fn $name(input: TokenStream) -> TokenStream { println!("Def site: {:?}", Span::def_site()); println!("Input: {:?}", input); let new: TokenStream = input.into_iter().map(|mut t| { t.set_span(Span::def_site()); t }).collect(); println!("Respanned: {:?}", new); new } }; }