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RevIterator

stryke::value

Struct RevIterator 

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pub struct RevIterator { /* private fields */ }
Expand description

Reverses the source iterator’s sequence of items. Drains lazily on the first next_item call — rev cannot stream, since the last item must be produced first.

Don’t be tempted to per-item chars().rev() here: that’s scalar reverse at the item level, not list reversal. ~> $s chars rev and friends rely on this reversing the sequence (a,b,c,d → d,c,b,a).

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impl RevIterator

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pub fn new(source: Arc<dyn PerlIterator>) -> Self

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impl PerlIterator for RevIterator

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fn next_item(&self) -> Option<PerlValue>

Return the next item, or None when exhausted.
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fn collect_all(&self) -> Vec<PerlValue>

Collect all remaining items into a Vec.

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