vercel__next.js/test/e2e/app-document-import-order/sideEffectModule.js at codex/fallback-root-cache - vercel__next.js - GetSkill.work

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Niklas Mischkulnig 6c0dd8400b Turbopack: deduplicate Pages Router app chunks (#97664 )

Previously, Turbopack treated `_app` and Pages router pages as
completely separate.

So using code both in `_app` and `pages/foo.tsx` would lead to a lot of
duplicated code to be loaded at runtime.
But in reality, `_app` is always loaded for Pages, so we can thread the
availability info and skip chunking modules that were already loaded by
`_app`.

Recreation of https://github.com/vercel/next.js/pull/97549

Co-authored-by: vercel-fleet-prod[bot] <318278635+vercel-fleet-prod[bot]@users.noreply.github.com>

2026-08-21 11:12:53 +02:00

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 const sideEffect = (arg) => {
   if (!sideEffect.callArguments) {
     sideEffect.callArguments = []
   }
   sideEffect.callArguments.push(arg)
   return sideEffect.callArguments
 }
 globalThis.__appPageSharedModuleMarker = 'APP_PAGE_SHARED_MODULE_MARKER'
 export default sideEffect