Implement source maps during native packaging

[marcins]

Motivation

Implement source map support when packaging the dev bundle.

Changes

• produce source maps during asset manipulation
• assemble and write a final source map when packaging the bundle

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: 0751673

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

This PR includes changesets to release 112 packages

Name	Type
@atlaspack/rust	Minor
@atlaspack/bundler-default	Patch
atlaspack	Patch
@atlaspack/cache	Patch
@atlaspack/core	Patch
@atlaspack/e2e-tests	Patch
@atlaspack/fs	Patch
@atlaspack/logger	Patch
@atlaspack/source-map	Patch
@atlaspack/utils	Patch
@atlaspack/link	Patch
@atlaspack/packaging-test-harness	Patch
@atlaspack/optimizer-image	Patch
@atlaspack/optimizer-inline-requires	Patch
@atlaspack/packager-js	Patch
@atlaspack/transformer-compiled-css-in-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/profiler	Patch
@atlaspack/workers	Patch
@atlaspack/watcher-watchman-js	Patch
@atlaspack/types-internal	Patch
@atlaspack/optimizer-css	Patch
@atlaspack/optimizer-cssnano	Patch
@atlaspack/optimizer-swc	Patch
@atlaspack/optimizer-terser	Patch
@atlaspack/packager-css	Patch
@atlaspack/transformer-babel	Patch
@atlaspack/transformer-compiled-external	Patch
@atlaspack/transformer-compiled	Patch
@atlaspack/transformer-css	Patch
@atlaspack/transformer-less	Patch
@atlaspack/transformer-sass	Patch
@atlaspack/transformer-typescript-tsc	Patch
@atlaspack/transformer-typescript-types	Patch
@atlaspack/optimizer-blob-url	Patch
@atlaspack/optimizer-data-url	Patch
@atlaspack/optimizer-svgo	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	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-posthtml	Patch
@atlaspack/transformer-react-refresh-wrap	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/codeframe	Patch
@atlaspack/graph	Patch
@atlaspack/plugin	Patch
@atlaspack/reporter-bundle-buddy	Patch
@atlaspack/transformer-xml	Patch
@atlaspack/ts-utils	Patch
@atlaspack/packager-ts	Patch
@atlaspack/transformer-jsonld	Patch
@atlaspack/bundler-library	Patch
@atlaspack/compressor-brotli	Patch
@atlaspack/compressor-gzip	Patch
@atlaspack/compressor-raw	Patch
@atlaspack/namer-default	Patch
@atlaspack/optimizer-htmlnano	Patch
@atlaspack/packager-raw	Patch
@atlaspack/packager-wasm	Patch
@atlaspack/reporter-compiled-css-in-js-migration-map	Patch
@atlaspack/reporter-conditional-manifest	Patch
@atlaspack/transformer-glsl	Patch
@atlaspack/transformer-graphql	Patch
@atlaspack/transformer-inline-string	Patch
@atlaspack/transformer-inline	Patch
@atlaspack/transformer-json	Patch
@atlaspack/transformer-mdx	Patch
@atlaspack/transformer-pug	Patch
@atlaspack/transformer-raw	Patch
@atlaspack/transformer-svg-react	Patch
@atlaspack/transformer-toml	Patch
@atlaspack/transformer-worklet	Patch
@atlaspack/transformer-yaml	Patch

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[github-actions]

Rust Package Changeset Check

✅ The @atlaspack/rust package has been included in your changeset. Your Rust changes will be published.

[github-actions]

📊 Type Coverage Report

Coverage Comparison

Metric	Baseline	Current	Change
Coverage Percentage	92.24%	92.24%	➡️ 0.00%
Correctly Typed	219,987	219,988	+1
Total Expressions	238,483	238,484	+1
Untyped Expressions	18,496	18,496	+0

Files with Most Type Issues (Top 15)

File	Issues	Affected Lines
packages/core/integration-tests/test/javascript.ts	1152	745
packages/core/integration-tests/test/cache.ts	885	626
packages/core/integration-tests/test/scope-hoisting.ts	622	489
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	364	182
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/transpilation.ts	230	139
packages/core/integration-tests/test/output-formats.ts	227	161
packages/transformers/webextension/src/WebExtensionTransformer.ts	210	80
packages/core/core/src/requests/BundleGraphRequestRust.ts	194	67
packages/core/integration-tests/test/css-modules.ts	191	107
packages/core/core/src/requests/TargetRequest.ts	190	133

---

This report was generated by the Type Coverage GitHub Action

[github-actions]

📊 Benchmark Results

⚠️ Performance regressions detected!

📊 Benchmark Results

Overall Performance

Test	Duration	JS Memory Peak	Native Memory Peak	vs Baseline	Status
Three.js Real Repository (JS)	15.06s	1.92GB	2.17GB	-1.86% duration, -6.42% JS memory	🟡 Neutral
Three.js Real Repository (V3)	19.01s	3.23GB	3.74GB	+5.57% duration, +0.34% JS memory	🔴 Regression

🔍 Detailed Phase Analysis

Three.js Real Repository (JS)

Phase	Duration (avg)	Duration (p95)	Memory Peak (avg)	Memory Peak (p95)
resolving	7.02s	7.39s	1.36GB	1.73GB
transforming	7.01s	7.38s	1.37GB	1.73GB
bundling	6.82s	7.21s	1.37GB	1.73GB
bundled	6.47s	6.87s	1.46GB	1.82GB
packaging	4.40s	4.61s	1.56GB	1.91GB
optimizing	4.25s	4.47s	1.92GB	2.16GB

Three.js Real Repository (V3)

Phase	Duration (avg)	Duration (p95)	Memory Peak (avg)	Memory Peak (p95)
bundling	11.74s	17.28s	2.56GB	2.99GB
bundled	11.42s	16.96s	2.71GB	3.16GB
packaging	5.69s	6.49s	2.88GB	3.35GB
optimizing	5.50s	6.32s	3.23GB	3.74GB

💾 Unified Memory Analysis

Three.js Real Repository (JS) Memory Statistics

Memory Type	Metric	Min	Mean	Median	P95	P99	Max	Std Dev
JavaScript	RSS	1.27GB	1.75GB	1.76GB	2.16GB	2.16GB	2.16GB	274.43MB
	Heap Used	80.23MB	87.83MB	87.17MB	98.56MB	98.56MB	98.56MB	6.43MB
	Heap Total	96.60MB	130.98MB	129.52MB	177.89MB	177.89MB	177.89MB	22.36MB
	External	38.88MB	105.96MB	173.02MB	173.02MB	173.02MB	173.02MB	67.06MB
Native (Rust)	Physical Memory	1.66GB	1.83GB	1.83GB	2.01GB	2.10GB	2.17GB	118.01MB
	Virtual Memory	29.91GB	30.56GB	30.57GB	30.77GB	30.88GB	30.95GB	164.76MB

Sample Counts: JS: 14, Native: 240

Three.js Real Repository (V3) Memory Statistics

Memory Type	Metric	Min	Mean	Median	P95	P99	Max	Std Dev
JavaScript	RSS	2.37GB	2.99GB	3.06GB	3.74GB	3.74GB	3.74GB	408.89MB
	Heap Used	77.42MB	78.66MB	77.86MB	88.27MB	88.27MB	88.27MB	2.71MB
	Heap Total	86.45MB	95.42MB	89.20MB	130.70MB	130.70MB	130.70MB	13.49MB
	External	46.07MB	172.64MB	179.70MB	185.49MB	185.49MB	185.49MB	35.21MB
Native (Rust)	Physical Memory	2.92GB	3.27GB	3.27GB	3.61GB	3.74GB	3.74GB	185.42MB
	Virtual Memory	30.85GB	33.54GB	33.69GB	34.02GB	34.16GB	34.16GB	678.10MB

Sample Counts: JS: 14, Native: 366

🖥️ Environment

• Node.js: v22.17.0
• Platform: linux (x64)
• CPU: AMD EPYC 7763 64-Core Processor
• Total Memory: 15.62GB
• Git SHA: b71e096
• Branch: mszczepanski/native-pkg-source-maps
• Timestamp: 2026-02-18T22:30:41.495Z