Rename CacheNode.data → .lazyData

[acdlite]

CacheNode.data is used to lazily kick off a request during render, and represents the result of the entire Flight response. It doesn't correspond directly to the RSC data of the cache node itself — that's subTreeData. To complicate things further, I'm about to add another field to CacheNode that represents prefetched RSC data.

To make it a little less confusing, I've renamed the data field to lazyData. Still not perfectly clear on first glance, but it's at least more specific. With PPR, the goal is to remove the lazy data fetching mechanism in favor of initiating the request immediately upon navigation. So this field will eventually go away.

In the next PR, I will rename subTreeData, too. Perhaps something with "rsc" in the name so it's less generic than "data".

Closes NEXT-1843

[ijjk]

Stats from current PR

Default Build

General Overall increase ⚠️

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
buildDuration	10.6s	10.4s	N/A
buildDurationCached	6s	6s	N/A
nodeModulesSize	200 MB	200 MB	⚠️ +778 B
nextStartRea..uration (ms)	420ms	424ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
170-HASH.js gzip	26.7 kB	26.7 kB	N/A
199.HASH.js gzip	181 B	185 B	N/A
3f784ff6-HASH.js gzip	53.3 kB	53.3 kB	✓
framework-HASH.js gzip	45.2 kB	45.2 kB	✓
main-app-HASH.js gzip	240 B	241 B	N/A
main-HASH.js gzip	31.7 kB	31.6 kB	N/A
webpack-HASH.js gzip	1.7 kB	1.7 kB	N/A
Overall change	98.5 kB	98.5 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
_app-HASH.js gzip	195 B	194 B	N/A
_error-HASH.js gzip	183 B	182 B	N/A
amp-HASH.js gzip	501 B	501 B	✓
css-HASH.js gzip	321 B	321 B	✓
dynamic-HASH.js gzip	2.5 kB	2.5 kB	N/A
edge-ssr-HASH.js gzip	255 B	255 B	✓
head-HASH.js gzip	349 B	350 B	N/A
hooks-HASH.js gzip	368 B	369 B	N/A
image-HASH.js gzip	4.27 kB	4.27 kB	N/A
index-HASH.js gzip	255 B	256 B	N/A
link-HASH.js gzip	2.61 kB	2.6 kB	N/A
routerDirect..HASH.js gzip	311 B	309 B	N/A
script-HASH.js gzip	384 B	384 B	✓
withRouter-HASH.js gzip	307 B	306 B	N/A
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Overall change	1.57 kB	1.57 kB	✓

Client Build Manifests

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
_buildManifest.js gzip	484 B	482 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
index.html gzip	529 B	527 B	N/A
link.html gzip	543 B	540 B	N/A
withRouter.html gzip	524 B	523 B	N/A
Overall change	0 B	0 B	✓

Edge SSR bundle Size

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
edge-ssr.js gzip	93.7 kB	93.7 kB	N/A
page.js gzip	146 kB	146 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
middleware-b..fest.js gzip	626 B	623 B	N/A
middleware-r..fest.js gzip	151 B	151 B	✓
middleware.js gzip	37.4 kB	37.4 kB	N/A
edge-runtime..pack.js gzip	1.92 kB	1.92 kB	✓
Overall change	2.07 kB	2.07 kB	✓

Next Runtimes

	vercel/next.js canary	acdlite/next.js rename-cachenode.data-lazydata	Change
app-page-exp...dev.js gzip	168 kB	168 kB	✓
app-page-exp..prod.js gzip	93.9 kB	93.9 kB	✓
app-page-tur..prod.js gzip	94.7 kB	94.7 kB	✓
app-page-tur..prod.js gzip	89.2 kB	89.2 kB	✓
app-page.run...dev.js gzip	138 kB	138 kB	✓
app-page.run..prod.js gzip	88.5 kB	88.5 kB	✓
app-route-ex...dev.js gzip	23.9 kB	23.9 kB	✓
app-route-ex..prod.js gzip	16.6 kB	16.6 kB	✓
app-route-tu..prod.js gzip	16.6 kB	16.6 kB	✓
app-route-tu..prod.js gzip	16.2 kB	16.2 kB	✓
app-route.ru...dev.js gzip	23.4 kB	23.4 kB	✓
app-route.ru..prod.js gzip	16.2 kB	16.2 kB	✓
pages-api-tu..prod.js gzip	9.37 kB	9.37 kB	✓
pages-api.ru...dev.js gzip	9.64 kB	9.64 kB	✓
pages-api.ru..prod.js gzip	9.37 kB	9.37 kB	✓
pages-turbo...prod.js gzip	21.9 kB	21.9 kB	✓
pages.runtim...dev.js gzip	22.5 kB	22.5 kB	✓
pages.runtim..prod.js gzip	21.9 kB	21.9 kB	✓
server.runti..prod.js gzip	49.4 kB	49.4 kB	✓
Overall change	929 kB	929 kB	✓

Diff details

Diff for page.js

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Diff for 170-HASH.js

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Commit: 2048564

[huozhi]

Sounds good to rename