Make Intersperse[With] lazy#797
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jswrenn merged 3 commits intoNov 13, 2023
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| element: ElemF, | ||
| iter: Fuse<I>, | ||
| peek: Option<I::Item>, | ||
| peek: Option<Option<I::Item>>, |
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With the added nesting, could you just write a comment here about how the value of peek should be interpreted? (None, Some(None), Some(Some(...))?
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Done. And I will do the same for Product and CoalesceBy before publishing their similar laziness fix.
Similar to what is done by `core::iter::Peekable`, a nested option is now used.
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Related to #792
To make
Intersperse[With]adaptors lazy, I use a nested option which is whatcore::iter::Peekableuses internally.EDITs: I certainly hope that it's okay to use a nested option in such case because I did a similar thing to make
Productlazy (fixingcartesian_productandiproduct!un-laziness) and makeCoalesceBylazy (fixing 5 methods) that I'll publish once this PR is merged.