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docs: document intentional TItems cast in post-processor merge

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Co-authored-by: Ona <no-reply@ona.com>
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Kenneth
2026-02-28 15:51:18 +00:00
parent 416ee841f6
commit bf309fce20
1 changed files with 4 additions and 0 deletions
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4
packages/aris-core/src/feed-engine.ts
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@@ -306,6 +306,10 @@ export class FeedEngine<TItems extends FeedItem = FeedItem> {
const enhancement = await processor(currentItems) const enhancement = await processor(currentItems)
if (enhancement.additionalItems?.length) { if (enhancement.additionalItems?.length) {
// Post-processors operate on FeedItem[] without knowledge of TItems.
// Additional items are merged untyped — this is intentional. The
// processor contract is "FeedItem in, FeedItem out"; type narrowing
// is the caller's responsibility when consuming FeedResult.
currentItems = [...currentItems, ...(enhancement.additionalItems as TItems[])] currentItems = [...currentItems, ...(enhancement.additionalItems as TItems[])]
} }