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Merged
bgw merged 1 commit into from
Jan 13, 2026
Merged

Turbopack: Remove dead generic_type_macro code #88455

bgw merged 1 commit into from
Jan 13, 2026
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@bgw bgw commented Jan 13, 2026 •
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I deleted the code that used this a long time ago in #70817

The rational for why I deleted the uses of this code is here (generics in turbo-tasks would be nice, but this implementation was too limited to be worth the complexity): vercel/turborepo#8843 (comment)

@nextjs-bot nextjs-bot added created-by: Turbopack team PRs by the Turbopack team. Turbopack Related to Turbopack with Next.js. labels Jan 13, 2026
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bgw commented Jan 13, 2026 •
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This stack of pull requests is managed by Graphite. Learn more about stacking.

@bgw bgw mentioned this pull request Jan 13, 2026
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nextjs-bot commented Jan 13, 2026

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@bgw bgw requested a review from a team January 13, 2026 00:49
@bgw bgw marked this pull request as ready for review January 13, 2026 00:49
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nextjs-bot commented Jan 13, 2026 •
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Stats from current PR

✅ No significant changes detected

📊 All Metrics
📖 Metrics Glossary

Dev Server Metrics:

  • Listen = TCP port starts accepting connections
  • First Request = HTTP server returns successful response
  • Cold = Fresh build (no cache)
  • Warm = With cached build artifacts

Build Metrics:

  • Fresh = Clean build (no .next directory)
  • Cached = With existing .next directory

Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
  • All other changes are flagged to catch regressions

⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 455ms 455ms ✓ ▁▁▁█▁
Cold (Ready in log) 436ms 437ms ✓ ▂▁▁█▁
Cold (First Request) 1.170s 1.133s ✓ ▄▁▂█▁
Warm (Listen) 456ms 456ms ✓ ▁▁▁█▁
Warm (Ready in log) 447ms 441ms ✓ ▁▁▁█▁
Warm (First Request) 342ms 339ms ✓ ▂▁▁█▂
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 455ms 456ms ✓ ▅▁▁▁▁
Cold (Ready in log) 437ms 436ms ✓ ▆▇▅▆▆
Cold (First Request) 1.812s 1.810s ✓ ▇█▆▇█
Warm (Listen) 456ms 456ms ✓ █████
Warm (Ready in log) 435ms 437ms ✓ ▇█▆██
Warm (First Request) 1.825s 1.820s ✓ ▆▇▅▇▇

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 4.110s 4.047s ✓ ▁▁▂█▁
Cached Build 4.081s 4.083s ✓ ▁▁▂█▁
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 13.891s 13.810s ✓ ▃▃▁▃▂
Cached Build 13.945s 14.005s ✓ ▃▃▁▃▃
node_modules Size 458 MB 458 MB ✓ ▁▁▁▁▁
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **431 kB** → **431 kB** ✅ -7 B

82 files with content-based hashes (individual files not comparable between builds)

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 789 B 792 B ✓
Total 789 B 792 B ⚠️ +3 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 450 B 450 B ✓
Total 450 B 450 B ✓

📦 Webpack

Client

Main Bundles
Canary PR Change
2086.HASH.js gzip 169 B N/A -
2161-HASH.js gzip 5.41 kB N/A -
2747-HASH.js gzip 4.48 kB N/A -
4322-HASH.js gzip 52.8 kB N/A -
ec793fe8-HASH.js gzip 62.3 kB N/A -
framework-HASH.js gzip 59.8 kB 59.8 kB ✓
main-app-HASH.js gzip 251 B 253 B ✓
main-HASH.js gzip 38.6 kB 39 kB ✓
webpack-HASH.js gzip 1.68 kB 1.68 kB ✓
1596.HASH.js gzip N/A 169 B -
2658-HASH.js gzip N/A 52.7 kB -
6349-HASH.js gzip N/A 4.46 kB -
7019-HASH.js gzip N/A 5.43 kB -
b17a3386-HASH.js gzip N/A 62.3 kB -
Total 225 kB 226 kB ⚠️ +244 B
Polyfills
Canary PR Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB ✓
Total 39.4 kB 39.4 kB ✓
Pages
Canary PR Change
_app-HASH.js gzip 194 B 193 B ✓
_error-HASH.js gzip 182 B 182 B ✓
css-HASH.js gzip 336 B 335 B ✓
dynamic-HASH.js gzip 1.8 kB 1.8 kB ✓
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head-HASH.js gzip 352 B 349 B ✓
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routerDirect..HASH.js gzip 319 B 317 B ✓
script-HASH.js gzip 385 B 387 B ✓
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1afbb74e6ecf..834.css gzip 106 B 106 B ✓
Total 7.97 kB 7.96 kB ✅ -8 B

Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 125 kB 125 kB ✓
page.js gzip 242 kB 242 kB ✓
Total 366 kB 367 kB ⚠️ +466 B
Middleware
Canary PR Change
middleware-b..fest.js gzip 653 B 651 B ✓
middleware-r..fest.js gzip 155 B 156 B ✓
middleware.js gzip 33 kB 33.2 kB ✓
edge-runtime..pack.js gzip 842 B 842 B ✓
Total 34.6 kB 34.9 kB ⚠️ +268 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 738 B 738 B ✓
Total 738 B 738 B ✓
Build Cache
Canary PR Change
0.pack gzip 3.66 MB 3.67 MB 🔴 +9.2 kB (+0%)
index.pack gzip 101 kB 98.3 kB 🟢 2.89 kB (-3%)
index.pack.old gzip 98.9 kB 100 kB 🔴 +1.39 kB (+1%)
Total 3.86 MB 3.87 MB ⚠️ +7.7 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 304 kB 304 kB ✓
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app-route-tu...dev.js gzip 68.4 kB 68.4 kB ✓
app-route-tu..prod.js gzip 47.4 kB 47.4 kB ✓
app-route.ru...dev.js gzip 68.4 kB 68.4 kB ✓
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Total 2.69 MB 2.69 MB ✓

@bgw bgw mentioned this pull request Jan 13, 2026
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bgw commented Jan 13, 2026 •
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Merge activity

  • Jan 13, 6:01 PM UTC: A user started a stack merge that includes this pull request via Graphite.
  • Jan 13, 6:04 PM UTC: Graphite rebased this pull request as part of a merge.
  • Jan 13, 6:52 PM UTC: @bgw merged this pull request with Graphite.

@bgw bgw changed the base branch from bgw/rm-parse-quote to graphite-base/88455 January 13, 2026 18:02
@bgw bgw changed the base branch from graphite-base/88455 to canary January 13, 2026 18:02
@bgw bgw force-pushed the bgw/rm-generic-type-macro branch from 4cf8463 to 8213346 Compare January 13, 2026 18:04
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codspeed-hq bot commented Jan 13, 2026

Merging this PR will not alter performance

✅ 17 untouched benchmarks
⏩ 3 skipped benchmarks1

Comparing bgw/rm-generic-type-macro (8213346) with canary (a6371dd)

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Footnotes

  1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

@bgw bgw merged commit 60b5df6 into canary Jan 13, 2026
166 checks passed
@bgw bgw deleted the bgw/rm-generic-type-macro branch January 13, 2026 18:52
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