2153             tail_tail: IndexStr<'_>,  in parse()
2155             if let Some(b'E') = tail_tail.peek() {  in parse()
2185                     let (sub, tail_tail) = Substitution::parse(ctx, subs, tail)?;  in parse()
2194                     tail = tail_tail;  in parse()
2198                     let (param, tail_tail) = TemplateParam::parse(ctx, subs, tail)?;  in parse()
2199                     current = Some(save(subs, Prefix::TemplateParam(param), tail_tail));  in parse()
2200                     tail = tail_tail;  in parse()
2210                     if let Ok((decltype, tail_tail)) = Decltype::parse(ctx, subs, tail) {  in parse()
2211                         current = Some(save(subs, Prefix::Decltype(decltype), tail_tail));  in parse()
2212                         tail = tail_tail;  in parse()
2214                         let (name, tail_tail) = UnqualifiedName::parse(ctx, subs, tail)?;  in parse()
2219                         current = Some(save(subs, prefix, tail_tail));  in parse()
2220                         tail = tail_tail;  in parse()
2227                     let (args, tail_tail) = TemplateArgs::parse(ctx, subs, tail)?;  in parse()
2229                     current = Some(save(subs, prefix, tail_tail));  in parse()
2230                     tail = tail_tail;  in parse()
2243                     let (name, tail_tail) = SourceName::parse(ctx, subs, tail)?;  in parse()
2244                     if tail_tail.peek() == Some(b'M') {  in parse()
2246                         current = Some(save(subs, prefix, tail_tail));  in parse()
2247                         tail = consume(b"M", tail_tail).unwrap();  in parse()
2254                         current = Some(save(subs, prefix, tail_tail));  in parse()
2255                         tail = tail_tail;  in parse()
2260                     let (name, tail_tail) = UnqualifiedName::parse(ctx, subs, tail)?;  in parse()
2265                     current = Some(save(subs, prefix, tail_tail));  in parse()
2266                     tail = tail_tail;  in parse()
7697         if let Ok((parsed, tail_tail)) = P::parse(ctx, subs, tail) {  in one_or_more()
7699             tail = tail_tail;  in one_or_more()
7717         if let Ok((parsed, tail_tail)) = P::parse(ctx, subs, tail) {  in zero_or_more()
7719             tail = tail_tail;  in zero_or_more()