Filter availability info to only what is relevant - #98611
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lukesandberg
added this pull request to stack #98548
September 13, 2026 15:41
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Failing test suitesCommit: b1a69fa | About building and testing Next.js
Expand output● lazy-dynamic-imports › does not parse a dynamic import target before activation Other failing CI jobs |
Move the async-chunk-group availability filter into turbopack-core as `availability_info_for_async_chunk_group`, and use it from both `AsyncLoaderModule::new` and `ManifestAsyncModule::new`. `ManifestAsyncModule` has the same problem `AsyncLoaderModule` had: it is keyed by the full availability of whichever parent reached it, so a target imported from many entries gets one copy per entry even when every copy is byte-identical. On an 8-page fixture with `turbopackLazyDynamicImports` enabled, the manifest chunk module went from 8 identical copies to 1.
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AsyncModuleLoader::newnow filters incomingAvailabilityInfoagainst the module graph to discard irrelevant entries (same forManifestAsyncLoader)This enables more cross route sharing of loader modules addressing part of #97802
It is also expensive, but less expensive than duplicate chunking so for at least the target repo it is a massive win