Add hash gated migration strategy for compiled swc plugin

[JakeLane]

Motivation

We need to have a partial migration step for using Compiled SWC in production. This approach uses hashing to detect which files are safe to use.

Changes

• Bring in a newer version of the SWC plugin
• Add a transformer pass that checks the hash in a JSON file
• Add a reporter to generate the JSON file (only to be used to commit to VCS).

Checklist

• Existing or new tests cover this change
• There is a changeset for this change, or one is not required
• Added documentation for any new features to the docs/ folder

[changeset-bot]

🦋 Changeset detected

Latest commit: 6e35775

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 77 packages

Name	Type
@atlaspack/reporter-compiled-css-in-js-migration-map	Patch
@atlaspack/transformer-compiled-css-in-js	Patch
@atlaspack/compiled-css-in-js-example	Patch
@atlaspack/rust	Patch
@atlaspack/bundler-experimental	Patch
@atlaspack/bundler-default	Patch
atlaspack	Patch
@atlaspack/cache	Patch
@atlaspack/core	Patch
@atlaspack/fs	Patch
@atlaspack/logger	Patch
@atlaspack/utils	Patch
@atlaspack/link	Patch
@atlaspack/optimizer-image	Patch
@atlaspack/optimizer-inline-requires	Patch
@atlaspack/packager-js	Patch
@atlaspack/transformer-html	Patch
@atlaspack/transformer-js	Patch
@atlaspack/transformer-postcss	Patch
@atlaspack/transformer-svg	Patch
@atlaspack/transformer-tokens	Patch
@atlaspack/node-resolver-core	Patch
@atlaspack/config-default	Patch
@atlaspack/test-utils	Patch
@atlaspack/inspector	Patch
@atlaspack/query	Patch
@atlaspack/config-webextension	Patch
@atlaspack/cli	Patch
@atlaspack/register	Patch
@atlaspack/bundle-stats	Patch
@atlaspack/reporter-bundle-stats	Patch
@atlaspack/transformer-image	Patch
@atlaspack/inspector-frontend	Patch
@atlaspack/package-manager	Patch
@atlaspack/workers	Patch
@atlaspack/watcher-watchman-js	Patch
@atlaspack/optimizer-blob-url	Patch
@atlaspack/optimizer-css	Patch
@atlaspack/optimizer-data-url	Patch
@atlaspack/optimizer-svgo	Patch
@atlaspack/optimizer-swc	Patch
@atlaspack/optimizer-terser	Patch
@atlaspack/packager-css	Patch
@atlaspack/packager-html	Patch
@atlaspack/packager-raw-url	Patch
@atlaspack/packager-svg	Patch
@atlaspack/packager-webextension	Patch
@atlaspack/packager-xml	Patch
@atlaspack/reporter-build-metrics	Patch
@atlaspack/reporter-bundle-analyzer	Patch
@atlaspack/reporter-cli	Patch
@atlaspack/reporter-dev-server-sw	Patch
@atlaspack/reporter-dev-server	Patch
@atlaspack/reporter-json	Patch
@atlaspack/reporter-lsp	Patch
@atlaspack/reporter-sourcemap-visualiser	Patch
@atlaspack/reporter-tracer	Patch
@atlaspack/resolver-glob	Patch
@atlaspack/runtime-browser-hmr	Patch
@atlaspack/runtime-js	Patch
@atlaspack/runtime-react-refresh	Patch
@atlaspack/runtime-service-worker	Patch
@atlaspack/runtime-webextension	Patch
@atlaspack/transformer-babel	Patch
@atlaspack/transformer-css	Patch
@atlaspack/transformer-posthtml	Patch
@atlaspack/transformer-react-refresh-wrap	Patch
@atlaspack/transformer-typescript-types	Patch
@atlaspack/transformer-webextension	Patch
@atlaspack/transformer-webmanifest	Patch
@atlaspack/validator-eslint	Patch
@atlaspack/validator-typescript	Patch
@atlaspack/resolver-default	Patch
@atlaspack/resolver-tesseract	Patch
@atlaspack/types	Patch
@atlaspack/packager-ts	Patch
@atlaspack/transformer-jsonld	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

📊 Type Coverage Report

Coverage Comparison

Metric	Baseline	Current	Change
Coverage Percentage	92.03%	92.04%	📈 +0.01%
Correctly Typed	201,286	201,604	+318
Total Expressions	218,697	219,017	+320
Untyped Expressions	17,411	17,413	+2

Files with Most Type Issues (Top 15)

File	Issues	Affected Lines
packages/core/integration-tests/test/javascript.ts	983	648
packages/core/integration-tests/test/cache.ts	885	626
packages/core/integration-tests/test/scope-hoisting.ts	623	490
packages/utils/node-resolver-core/test/resolver.ts	476	177
packages/core/integration-tests/test/html.ts	468	294
packages/core/integration-tests/test/sourcemaps.ts	356	176
packages/core/test-utils/src/utils.ts	330	205
packages/core/integration-tests/test/incremental-bundling.ts	298	206
packages/core/core/src/dumpGraphToGraphViz.ts	251	108
packages/core/integration-tests/test/output-formats.ts	227	161
packages/transformers/webextension/src/WebExtensionTransformer.ts	210	80
packages/core/integration-tests/test/react-refresh.ts	197	71
packages/core/integration-tests/test/css-modules.ts	191	107
packages/core/core/src/requests/TargetRequest.ts	190	133
packages/core/integration-tests/test/babel.ts	187	115

---

This report was generated by the Type Coverage GitHub Action

[github-actions]

📊 Benchmark Results

✅ No significant performance changes detected.

📊 Benchmark Results

Overall Performance

Test	Duration	JS Memory Peak	Native Memory Peak	vs Baseline	Status
Three.js Real Repository (JS)	16.63s	1.78GB	1.85GB	-1.80% duration, -12.86% JS memory	🟡 Neutral
Three.js Real Repository (Native)	26.96s	3.22GB	3.44GB	+4.94% duration, -12.31% JS memory	🟡 Neutral

🔍 Detailed Phase Analysis

Three.js Real Repository (JS)

Phase	Duration (avg)	Duration (p95)	Memory Peak (avg)	Memory Peak (p95)
resolving	8.78s	9.22s	1.15GB	1.18GB
transforming	8.78s	9.21s	1.15GB	1.19GB
bundling	8.55s	8.97s	1.15GB	1.19GB
bundled	8.14s	8.57s	1.26GB	1.30GB
packaging	6.00s	6.34s	1.37GB	1.42GB
optimizing	5.82s	6.15s	1.78GB	1.86GB

Three.js Real Repository (Native)

Phase	Duration (avg)	Duration (p95)	Memory Peak (avg)	Memory Peak (p95)
bundling	17.08s	23.53s	2.38GB	2.64GB
bundled	16.70s	23.10s	2.57GB	2.81GB
packaging	7.56s	8.48s	2.81GB	3.03GB
optimizing	7.41s	8.37s	3.22GB	3.44GB

💾 Unified Memory Analysis

Three.js Real Repository (JS) Memory Statistics

Memory Type	Metric	Min	Mean	Median	P95	P99	Max	Std Dev
JavaScript	RSS	1.29GB	1.58GB	1.74GB	1.86GB	1.86GB	1.86GB	222.18MB
	Heap Used	79.43MB	85.41MB	80.74MB	98.26MB	98.26MB	98.26MB	7.56MB
	Heap Total	94.85MB	123.28MB	129.43MB	173.10MB	173.10MB	173.10MB	27.46MB
	External	38.94MB	106.05MB	173.09MB	173.15MB	173.15MB	173.15MB	67.06MB
Native (Rust)	Physical Memory	1.13GB	1.38GB	1.35GB	1.70GB	1.83GB	1.85GB	205.39MB
	Virtual Memory	29.12GB	29.91GB	29.81GB	31.02GB	31.16GB	31.27GB	470.47MB

Sample Counts: JS: 6, Native: 262

Three.js Real Repository (Native) Memory Statistics

Memory Type	Metric	Min	Mean	Median	P95	P99	Max	Std Dev
JavaScript	RSS	2.39GB	2.93GB	3.00GB	3.44GB	3.44GB	3.44GB	356.58MB
	Heap Used	76.56MB	77.13MB	77.20MB	77.62MB	77.62MB	77.62MB	0.32MB
	Heap Total	87.70MB	92.40MB	90.95MB	99.45MB	99.45MB	99.45MB	4.65MB
	External	179.53MB	182.44MB	185.32MB	185.34MB	185.34MB	185.34MB	2.89MB
Native (Rust)	Physical Memory	2.48GB	2.86GB	2.88GB	3.22GB	3.44GB	3.44GB	231.17MB
	Virtual Memory	30.69GB	33.36GB	33.47GB	33.81GB	34.02GB	34.02GB	487.32MB

Sample Counts: JS: 6, Native: 634

🖥️ Environment

• Node.js: v22.17.0
• Platform: linux (x64)
• CPU: AMD EPYC 7763 64-Core Processor
• Total Memory: 15.62GB
• Git SHA: b95a7d7
• Branch: compiled-plugin-hash-migration
• Timestamp: 2025-11-14T06:27:29.024Z