Lines Matching refs:ahead
1196 let ahead = input.fork();
1197 if let Some(op) = match ahead.parse::<BinOp>() {
1201 input.advance_to(&ahead);
1289 let ahead = input.fork();
1290 if let Some(op) = match ahead.parse::<BinOp>() {
1294 input.advance_to(&ahead);
2570 let ahead = input.fork();
2571 let label: Option<Lifetime> = ahead.parse()?;
2572 if label.is_some() && ahead.peek(Token![:]) {
2585 input.advance_to(&ahead);