perf: Make page static info use Atom instead of String

[kdy1]

What?

Use swc_atoms::Atom instead of String in next-swc.

Why?

Atom does not allocate if another instance has the same value, meaning that clone() is a single atomic operation. But String allocates regardless of any other occurrence.

Closes PACK-3891

[kdy1]

• perf: Make page static info use Atom instead of String #75596 👈 (View in Graphite)
• perf: Make page exports stripper use Atom instead of String #75595
• perf: Make server action pass use Atom instead of String #75594
• perf: Make RSC pass use Atom instead of String #75593
• perf: Make barrel optimizer use Atom instead of String #75592
• perf: Make next_ssg use Atom instead of String #75591
• canary

This stack of pull requests is managed by Graphite. Learn more about stacking.

[ijjk]

Failing test suites

Commit: 1dd9e30

pnpm test-dev-turbo test/development/acceptance/error-recovery.test.ts (turbopack)

• ReactRefreshLogBox turbo > logbox: can recover from a component error

Expand output

● ReactRefreshLogBox turbo › logbox: can recover from a component error

expect(received).toBe(expected) // Object.is equality

Expected: true
Received: false

  218 |     )
  219 |
> 220 |     expect(didNotReload).toBe(true)
      |                          ^
  221 |     await session.assertNoRedbox()
  222 |     expect(
  223 |       await session.evaluate(() => document.querySelector('p').textContent)

  at Object.toBe (development/acceptance/error-recovery.test.ts:220:26)

Read more about building and testing Next.js in contributing.md.

pnpm test-dev-turbo test/development/acceptance/ReactRefreshLogBox-builtins.test.ts (turbopack)

• ReactRefreshLogBox turbo > Module not found (empty import trace)

Expand output

● ReactRefreshLogBox turbo › Module not found (empty import trace)

Application is in inconsistent state: timeout.

  93 |             }
  94 |             if (status !== 'pending') {
> 95 |               throw new Error(
     |                     ^
  96 |                 `Application is in inconsistent state: ${status}.`
  97 |               )
  98 |             }

  at Object.patch (lib/development-sandbox.ts:95:21)
  at Object.<anonymous> (development/acceptance/ReactRefreshLogBox-builtins.test.ts:131:5)

Read more about building and testing Next.js in contributing.md.

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	vercel/next.js kdy1/next-swc-alloc-9	Change
buildDuration	17.8s	15.7s	N/A
buildDurationCached	15s	12.4s	N/A
nodeModulesSize	392 MB	392 MB	✓
nextStartRea..uration (ms)	414ms	421ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	vercel/next.js kdy1/next-swc-alloc-9	Change
5306-HASH.js gzip	54 kB	54 kB	N/A
8276.HASH.js gzip	169 B	168 B	N/A
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main-HASH.js gzip	34.5 kB	34.5 kB	N/A
webpack-HASH.js gzip	1.71 kB	1.71 kB	N/A
Overall change	0 B	0 B	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js kdy1/next-swc-alloc-9	Change
polyfills-HASH.js gzip	39.4 kB	39.4 kB	✓
Overall change	39.4 kB	39.4 kB	✓

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edge-ssr-HASH.js gzip	265 B	265 B	✓
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hooks-HASH.js gzip	393 B	392 B	N/A
image-HASH.js gzip	4.59 kB	4.58 kB	N/A
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routerDirect..HASH.js gzip	328 B	328 B	✓
script-HASH.js gzip	397 B	397 B	✓
withRouter-HASH.js gzip	323 B	326 B	N/A
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Overall change	3.59 kB	3.59 kB	✓

Client Build Manifests

	vercel/next.js canary	vercel/next.js kdy1/next-swc-alloc-9	Change
_buildManifest.js gzip	748 B	747 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js kdy1/next-swc-alloc-9	Change
index.html gzip	525 B	524 B	N/A
link.html gzip	539 B	538 B	N/A
withRouter.html gzip	520 B	520 B	✓
Overall change	520 B	520 B	✓

Edge SSR bundle Size

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edge-ssr.js gzip	130 kB	130 kB	N/A
page.js gzip	210 kB	210 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

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middleware-b..fest.js gzip	677 B	671 B	N/A
middleware-r..fest.js gzip	155 B	156 B	N/A
middleware.js gzip	31.3 kB	31.3 kB	N/A
edge-runtime..pack.js gzip	844 B	844 B	✓
Overall change	844 B	844 B	✓

Next Runtimes

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app-page-exp..prod.js gzip	132 kB	132 kB	✓
app-page-tur..prod.js gzip	145 kB	145 kB	✓
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app-route-ex..prod.js gzip	25.6 kB	25.6 kB	✓
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app-route-tu..prod.js gzip	25.4 kB	25.4 kB	✓
app-route.ru...dev.js gzip	40.8 kB	40.8 kB	✓
app-route.ru..prod.js gzip	25.4 kB	25.4 kB	✓
dist_client_...dev.js gzip	356 B	356 B	✓
dist_client_...dev.js gzip	349 B	349 B	✓
pages-api-tu..prod.js gzip	9.69 kB	9.69 kB	✓
pages-api.ru...dev.js gzip	11.8 kB	11.8 kB	✓
pages-api.ru..prod.js gzip	9.68 kB	9.68 kB	✓
pages-turbo...prod.js gzip	21.9 kB	21.9 kB	✓
pages.runtim...dev.js gzip	31.5 kB	31.5 kB	✓
pages.runtim..prod.js gzip	21.9 kB	21.9 kB	✓
server.runti..prod.js gzip	60.5 kB	60.5 kB	✓
Overall change	1.65 MB	1.65 MB	✓

build cache Overall increase ⚠️

	vercel/next.js canary	vercel/next.js kdy1/next-swc-alloc-9	Change
0.pack gzip	2.1 MB	2.11 MB	⚠️ +496 B
index.pack gzip	76.1 kB	76.1 kB	N/A
Overall change	2.1 MB	2.11 MB	⚠️ +496 B

Diff details

Diff for main-HASH.js

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Commit: 1dd9e30

[kdy1]

Merge activity

• Feb 5, 9:30 AM GMT+9: Graphite rebased this pull request as part of a merge.
• Feb 5, 10:02 AM GMT+9: Graphite couldn't merge this PR because it was not satisfying all requirements (Failed CI: 'thank you, next', 'test turbopack dev (3/5) / build').