374                 pub spans: [Span; $len],
379             pub fn $name<S: IntoSpans<[Span; $len]>>(spans: S) -> $name {
381                     spans: spans.into_spans(),
388                         spans: [Span::call_site(); $len],
447                     printing::punct($token, &self.spans, tokens);
456                         spans: parsing::punct(input, $token)?,
916         let mut spans = [input.span(); 3];  in punct()  localVariable
917         punct_helper(input, token, &mut spans)?;  in punct()
918         Ok(S::from_spans(&spans))  in punct()
921     fn punct_helper(input: ParseStream, token: &str, spans: &mut [Span; 3]) -> Result<()> {  in punct_helper()
924             assert!(token.len() <= spans.len());
929                         spans[i] = punct.span();
943             Err(Error::new(spans[0], format!("expected `{}`", token)))
974     pub fn punct(s: &str, spans: &[Span], tokens: &mut TokenStream) {  in punct()
975         assert_eq!(s.len(), spans.len());  in punct()
978         let mut spans = spans.iter();  in punct()  localVariable
980         let span = spans.next_back().unwrap();  in punct()
981         for (ch, span) in chars.zip(spans) {  in punct()