Minimal docs for Pairs::peek
@@ -167,6 +167,7 @@ impl<'i, R: RuleType> Pairs<'i, R> {
tokens::new(self.queue, self.input, self.start, self.end)
}
+ /// Peek at the first inner `Pair` without changing the position of this iterator.
#[inline]
pub fn peek(&self) -> Option<Pair<'i, R>> {
if self.start < self.end {
