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fix(optimize): support concatenateModules with cacheUnaffected - #22746
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🦋 Changeset detectedLatest commit: 787929b The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
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Priority: ➖ Normal Change: Bug fix Merge Risk: 🔵 Low · up to
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- 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Review comments at @.changeset/130-concatenation-cache-unaffected.md:
- Line 5: Shorten the changeset summary in the diff to no more than 80
characters, including Markdown delimiters; retain its meaning while removing
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.changeset/130-concatenation-cache-unaffected-guard.md.changeset/130-concatenation-cache-unaffected.mdlib/Compilation.jslib/optimize/ModuleConcatenationPlugin.jstest/unitCases/Compiler.unittest.jstest/watchCases/cache/asset-concat/2/index.jstest/watchCases/cache/asset-concat/test.filter.jstest/watchCases/plugins/dll-reference-plugin/test.filter.jstest/watchCases/scope-hoisting/caching-inner-source/test.filter.js
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- test/unitCases/Compiler.unittest.js
- .changeset/130-concatenation-cache-unaffected-guard.md
- test/watchCases/cache/asset-concat/test.filter.js
- lib/optimize/ModuleConcatenationPlugin.js
- test/watchCases/scope-hoisting/caching-inner-source/test.filter.js
- test/watchCases/plugins/dll-reference-plugin/test.filter.js
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #22746 +/- ##
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Coverage 96.45% 96.46%
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Files 778 778
Lines 136321 136328 +7
Branches 46013 46016 +3
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+ Hits 131494 131502 +8
+ Misses 4827 4826 -1
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🟡 Minor · Use an unambiguous source-type cache key. · Compilation.js:3201-3205
lib/Compilation.js:3201-3205
🎯 Functional Correctness | 🟡 Minor | ⚡ Quick winUse an unambiguous source-type cache key.
SourceTypepermits arbitrary strings, including commas. Therefore,[...sourceTypes].join()mapsSet(["x,y"])andSet(["x", "y"])to the same key.compareReferencescan then keep the old cache. The unchanged module hash can select the old code-generation result.Suggested fix
- : [...sourceTypes].join(); + : JSON.stringify([...sourceTypes].sort());🤖 Prompt for AI Agents
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Review comments at @lib/Compilation.js:
- Around line 3201-3205: Update the chunkSourceTypesKey function to produce an
unambiguous key for arbitrary source-type strings, such as by sorting the source
types and serializing the array rather than joining values with commas.
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test/configCases/errors/optimize-chunk-modules-error/errors.jstest/configCases/errors/optimize-chunk-modules-error/index.jstest/configCases/errors/optimize-chunk-modules-error/webpack.config.js
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…acheUnaffected Two feature combinations webpack recently allowed had never been fuzzed together: concatenateModules + cacheUnaffected (webpack#22746) and splitChunks + cacheUnaffected. Both pass 1000+ fresh seeds clean on current main; kept as permanent variants.
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This PR contains the following updates: | Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) | |---|---|---|---| | [webpack](https://github.com/webpack/webpack) | [`5.112.0` → `5.112.2`](https://renovatebot.com/diffs/npm/webpack/5.112.0/5.112.2) |  |  | --- >⚠️ **Warning** > > Some dependencies could not be looked up. Check the [Dependency Dashboard](issues/99) for more information. --- ### Release Notes <details> <summary>webpack/webpack (webpack)</summary> ### [`v5.112.2`](https://github.com/webpack/webpack/blob/HEAD/CHANGELOG.md#51122) [Compare Source](webpack/webpack@v5.112.1...v5.112.2) ##### Patch Changes - Reduce repeated scans when concatenating imported modules. (by [@​xiaoxiaojx](https://github.com/xiaoxiaojx) in [#​22865](webpack/webpack#22865)) - Avoid allocating CSS module sets for single-group chunks. (by [@​xiaoxiaojx](https://github.com/xiaoxiaojx) in [#​22866](webpack/webpack#22866)) - Return the value of every module type loaded with `importModule()`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22869](webpack/webpack#22869)) ### [`v5.112.1`](https://github.com/webpack/webpack/blob/HEAD/CHANGELOG.md#51121) [Compare Source](webpack/webpack@v5.112.0...v5.112.1) ##### Patch Changes - Rebuild a lazy barrel in watch when what it defers changes, and keep the imports and re-exports it still runs. (by [@​aryanraj45](https://github.com/aryanraj45) in [#​22699](webpack/webpack#22699)) - Rebuild under `cacheUnaffected` a module whose re-export target goes or returns. (by [@​aryanraj45](https://github.com/aryanraj45) in [#​22749](webpack/webpack#22749)) - Fix "Self-reference dependency has unused export name" for CommonJS namespace re-exports. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22791](webpack/webpack#22791)) - Fix `exportType: "style"` CSS modules throwing outside the runtime chunk. (by [@​lazerg](https://github.com/lazerg) in [#​22833](webpack/webpack#22833)) - Fix crash when a CSS module with `exportType: "style"` imports an ignored stylesheet. (by [@​codeXsidd](https://github.com/codeXsidd) in [#​22846](webpack/webpack#22846)) - Keep empty process environment variables that `.env` files don't define in `DotenvPlugin`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22794](webpack/webpack#22794)) - Rehash an ESM entry chunk when a chunk it imports by file name changes. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22804](webpack/webpack#22804)) - Handle a NUL inside an HTML CDATA section the way the parsing spec does. (by [@​dependabot](https://github.com/apps/dependabot) in [#​22811](webpack/webpack#22811)) - Keep module exports live across chunks, runtimes, HMR and eval, sparing globals. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22733](webpack/webpack#22733)) - Await asynchronous modules that `ProvidePlugin` injects into ES modules. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22728](webpack/webpack#22728)) - Keep a resolve that ends after the compiler closed from throwing. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22795](webpack/webpack#22795)) - Preserve string names passed to SharedWorker constructors. (by [@​bjohansebas](https://github.com/bjohansebas) in [#​22770](webpack/webpack#22770)) - Preserve string contents when extracting source map comments. (by [@​bjohansebas](https://github.com/bjohansebas) in [#​22768](webpack/webpack#22768)) - Scope strict-mode, async and generator block function declarations to their block. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22800](webpack/webpack#22800)) - Preserve raw dotenv values when reusing cached environment files. (by [@​Eshiv-Pandey](https://github.com/Eshiv-Pandey) in [#​22787](webpack/webpack#22787)) - Preserve assigned or patched built-ins, conversions and pattern targets. (by [@​aryanraj45](https://github.com/aryanraj45) in [#​22761](webpack/webpack#22761)) - Keep globals a `globalThis` write replaces, and `slice` on a patched array. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22862](webpack/webpack#22862)) - Skip HTML script tags for shared chunks that emit no JavaScript. (by [@​bjohansebas](https://github.com/bjohansebas) in [#​22779](webpack/webpack#22779)) - Keep the digits Firefox lays out a minified CSS percentage with. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22718](webpack/webpack#22718)) - Reject a second `srcset` descriptor after a `0x` density descriptor. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22741](webpack/webpack#22741)) - Minify JavaScript faster, folding string methods on constants and `x -= 1`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22823](webpack/webpack#22823)) - Shorten minified JavaScript, and keep it running like its source. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22717](webpack/webpack#22717)) - Drop more unused functions, arguments, calls, global reads and variable copies when minifying JavaScript. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22789](webpack/webpack#22789)) - Minify JavaScript smaller where swc does, and fold a function's `length` right. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22826](webpack/webpack#22826)) - Reduce JavaScript output size where oxc or swc produce smaller output. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22829](webpack/webpack#22829)) - Update watchpack to 2.6.3 and rebuild on a `node_modules` created mid-build. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22743](webpack/webpack#22743)) - Support `concatenateModules` with `cacheUnaffected`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22746](webpack/webpack#22746)) - Update schema-utils to 4.8.1. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22774](webpack/webpack#22774)) - Keep CSS fallbacks, vendor overrides, `oklch()` hues and HTML elements. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22753](webpack/webpack#22753)) - Validate `CleanPlugin` and `DotenvPlugin` options with a precompiled check, so valid options no longer compile their schema at startup. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22758](webpack/webpack#22758)) - Speed up startup and CSS minification, sharing the compile cache with workers. (by [@​xiaoxiaojx](https://github.com/xiaoxiaojx) in [#​22706](webpack/webpack#22706)) - Use precise, generic types for modules, parsers, generators, stats and loaders. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22731](webpack/webpack#22731)) </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - "before 9am on tuesday" - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. 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markharding
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Oct 29, 2026
This PR contains the following updates: | Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) | |---|---|---|---| | [webpack](https://github.com/webpack/webpack) | [`5.112.0` → `5.112.2`](https://renovatebot.com/diffs/npm/webpack/5.112.0/5.112.2) |  |  | --- >⚠️ **Warning** > > Some dependencies could not be looked up. Check the [Dependency Dashboard](issues/99) for more information. --- ### Release Notes <details> <summary>webpack/webpack (webpack)</summary> ### [`v5.112.2`](https://github.com/webpack/webpack/blob/HEAD/CHANGELOG.md#51122) [Compare Source](webpack/webpack@v5.112.1...v5.112.2) ##### Patch Changes - Reduce repeated scans when concatenating imported modules. (by [@​xiaoxiaojx](https://github.com/xiaoxiaojx) in [#​22865](webpack/webpack#22865)) - Avoid allocating CSS module sets for single-group chunks. (by [@​xiaoxiaojx](https://github.com/xiaoxiaojx) in [#​22866](webpack/webpack#22866)) - Return the value of every module type loaded with `importModule()`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22869](webpack/webpack#22869)) ### [`v5.112.1`](https://github.com/webpack/webpack/blob/HEAD/CHANGELOG.md#51121) [Compare Source](webpack/webpack@v5.112.0...v5.112.1) ##### Patch Changes - Rebuild a lazy barrel in watch when what it defers changes, and keep the imports and re-exports it still runs. (by [@​aryanraj45](https://github.com/aryanraj45) in [#​22699](webpack/webpack#22699)) - Rebuild under `cacheUnaffected` a module whose re-export target goes or returns. (by [@​aryanraj45](https://github.com/aryanraj45) in [#​22749](webpack/webpack#22749)) - Fix "Self-reference dependency has unused export name" for CommonJS namespace re-exports. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22791](webpack/webpack#22791)) - Fix `exportType: "style"` CSS modules throwing outside the runtime chunk. (by [@​lazerg](https://github.com/lazerg) in [#​22833](webpack/webpack#22833)) - Fix crash when a CSS module with `exportType: "style"` imports an ignored stylesheet. (by [@​codeXsidd](https://github.com/codeXsidd) in [#​22846](webpack/webpack#22846)) - Keep empty process environment variables that `.env` files don't define in `DotenvPlugin`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22794](webpack/webpack#22794)) - Rehash an ESM entry chunk when a chunk it imports by file name changes. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22804](webpack/webpack#22804)) - Handle a NUL inside an HTML CDATA section the way the parsing spec does. (by [@​dependabot](https://github.com/apps/dependabot) in [#​22811](webpack/webpack#22811)) - Keep module exports live across chunks, runtimes, HMR and eval, sparing globals. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22733](webpack/webpack#22733)) - Await asynchronous modules that `ProvidePlugin` injects into ES modules. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22728](webpack/webpack#22728)) - Keep a resolve that ends after the compiler closed from throwing. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22795](webpack/webpack#22795)) - Preserve string names passed to SharedWorker constructors. (by [@​bjohansebas](https://github.com/bjohansebas) in [#​22770](webpack/webpack#22770)) - Preserve string contents when extracting source map comments. (by [@​bjohansebas](https://github.com/bjohansebas) in [#​22768](webpack/webpack#22768)) - Scope strict-mode, async and generator block function declarations to their block. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22800](webpack/webpack#22800)) - Preserve raw dotenv values when reusing cached environment files. (by [@​Eshiv-Pandey](https://github.com/Eshiv-Pandey) in [#​22787](webpack/webpack#22787)) - Preserve assigned or patched built-ins, conversions and pattern targets. (by [@​aryanraj45](https://github.com/aryanraj45) in [#​22761](webpack/webpack#22761)) - Keep globals a `globalThis` write replaces, and `slice` on a patched array. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22862](webpack/webpack#22862)) - Skip HTML script tags for shared chunks that emit no JavaScript. (by [@​bjohansebas](https://github.com/bjohansebas) in [#​22779](webpack/webpack#22779)) - Keep the digits Firefox lays out a minified CSS percentage with. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22718](webpack/webpack#22718)) - Reject a second `srcset` descriptor after a `0x` density descriptor. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22741](webpack/webpack#22741)) - Minify JavaScript faster, folding string methods on constants and `x -= 1`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22823](webpack/webpack#22823)) - Shorten minified JavaScript, and keep it running like its source. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22717](webpack/webpack#22717)) - Drop more unused functions, arguments, calls, global reads and variable copies when minifying JavaScript. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22789](webpack/webpack#22789)) - Minify JavaScript smaller where swc does, and fold a function's `length` right. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22826](webpack/webpack#22826)) - Reduce JavaScript output size where oxc or swc produce smaller output. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22829](webpack/webpack#22829)) - Update watchpack to 2.6.3 and rebuild on a `node_modules` created mid-build. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22743](webpack/webpack#22743)) - Support `concatenateModules` with `cacheUnaffected`. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22746](webpack/webpack#22746)) - Update schema-utils to 4.8.1. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22774](webpack/webpack#22774)) - Keep CSS fallbacks, vendor overrides, `oklch()` hues and HTML elements. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22753](webpack/webpack#22753)) - Validate `CleanPlugin` and `DotenvPlugin` options with a precompiled check, so valid options no longer compile their schema at startup. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22758](webpack/webpack#22758)) - Speed up startup and CSS minification, sharing the compile cache with workers. (by [@​xiaoxiaojx](https://github.com/xiaoxiaojx) in [#​22706](webpack/webpack#22706)) - Use precise, generic types for modules, parsers, generators, stats and loaders. (by [@​alexander-akait](https://github.com/alexander-akait) in [#​22731](webpack/webpack#22731)) </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - "before 9am on tuesday" - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate CLI](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4xNzUuMSIsInVwZGF0ZWRJblZlciI6IjQ0LjE3NS4xIiwidGFyZ2V0QnJhbmNoIjoiZGV2ZWxvcCIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiLCJyZW5vdmF0ZSJdfQ==--> Reviewed-on: https://code.futo.org/harbor/harbor/pulls/2035
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…acheUnaffected Two feature combinations webpack recently allowed had never been fuzzed together: concatenateModules + cacheUnaffected (webpack#22746) and splitChunks + cacheUnaffected. Both pass 1000+ fresh seeds clean on current main; kept as permanent variants.
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Summary
#22744 made
concatenateModules+cacheUnaffectedan error. This PR fixes the real bug instead, so the two options work together.Concatenation narrows the source types of an inner module that also has other types (an
asset/resourcekeeps onlyasset; its JS goes into the concatenated module). The normal module hash includes those overridden types, but thecacheUnaffectedhash cache in_computeAffectedModulesWithChunkGraphdid not. So when the module stopped being concatenated, it reused the old hash and the old code generation result, which had no JS:The cache now also compares the overridden source types. The guard from #22744 and its test are removed.
To check nothing else breaks, I ran every watch case with
concatenateModules: trueforced on: withcacheUnaffected, onlycache/asset-concatfailed before this fix; all pass after (2578 passed, the same as withoutcacheUnaffected).What kind of change does this PR introduce?
fix
Did you add tests for your changes?
Yes.
watchCases/cache/asset-concatnow runs undercacheUnaffected(filter removed) and gained a step 2 that switches back toimport. Thescope-hoisting/caching-inner-sourceandplugins/dll-reference-pluginfilters from #22744 are removed too.Does this PR introduce a breaking change?
No. The error added in #22744 is unreleased.
If relevant, what needs to be documented once your changes are merged or what have you already documented?
n/a
Use of AI
Claude Code found the root cause, wrote the fix and tests, and ran lint and the watch suites locally; the change was reviewed before it was opened.
Generated by Claude Code
Summary by CodeRabbit