16     TT::Group(Group::new(Delimiter::Parenthesis, ts))  in paren()
20     TT::Ident(Ident::new(s, Span::call_site()))  in ident()
24     TT::Punct(Punct::new(ch, Spacing::Alone))  in punct()
42                     return Err(Error::new(g.span(), "expected parenthesis"));  in parse_primary()
46                     return Err(Error::new(g.span(), "expected operand, found ')'"));  in parse_primary()
48                 let mut output = TokenStream::new();  in parse_primary()
52                     return Err(Error::new(tok.span(), format!("unexpected token {tok}")));  in parse_primary()
58                 let mut output = TokenStream::new();  in parse_primary()
61                     TT::Punct(Punct::new(':', Spacing::Joint)),  in parse_primary()
62                     TT::Punct(Punct::new(':', Spacing::Joint)),  in parse_primary()
70                     return Err(Error::new(p.span(), "expected operand"));  in parse_primary()
73                     return Err(Error::new(p.span(), "expected operand at end of input"));  in parse_primary()
76                 out.extend([punct('.'), ident("invert"), paren(TokenStream::new())]);  in parse_primary()
80                 return Err(Error::new(tok.span(), "unexpected literal"));  in parse_primary()
111                 return Err(Error::new(p.span(), "expected operand at end of input"));  in parse_binop()
113             let mut rhs = TokenStream::new();  in parse_binop()
164         let mut typ = proc_macro2::TokenStream::new();  in parse()
188             return Err(Error::new(  in parse()
194             return Err(Error::new(  in parse()
199         let mut out = TokenStream::new();  in parse()
201             typ: TT::Group(Group::new(Delimiter::None, typ)),  in parse()
209             return Err(Error::new(tok.span(), format!("unexpected token {tok}")));  in parse()