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test(rolldown): regression fixture for #9401#9418

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05-16-fix_9401
May 25, 2026
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test(rolldown): regression fixture for #9401#9418
IWANABETHATGUY merged 1 commit into
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05-16-fix_9401

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@IWANABETHATGUY IWANABETHATGUY commented May 16, 2026

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The bug is fixed by #9514, so this PR only adds the regression test.

close #9401

The fixture exercises the dynamic-import + CJS-require shape from the issue: a static assertNoStaticImportCycle check against the dist graph plus a runtime await import('./dist/entry-0.js') smoke to catch the original TypeError: __exportAll is not a function.

Why a regression test still matters. Any optimization that moves or merges the runtime host has to anticipate the static imports that follow. There is no type or invariant enforcing this — it lives entirely in the head of whoever wrote each optimization pass. Forgetting it silently introduces a circular import, which is exactly the bug in #9401.

Planned follow-up. A subsequent PR will restructure this: split the runtime module into a standalone chunk during optimization, then merge it into an existing chunk as a final step after helper usages are attached. Optimization will then see a complete graph, and the kind of ad-hoc guarding #9514 added can be removed.

IWANABETHATGUY commented May 16, 2026

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@IWANABETHATGUY IWANABETHATGUY changed the title fix: 9401 fix(generate): guard runtime-host reduction in dynamic-already-loaded May 18, 2026
@IWANABETHATGUY IWANABETHATGUY force-pushed the 05-16-fix_9401 branch 4 times, most recently from 31ecd99 to b90323a Compare May 22, 2026 08:12
@IWANABETHATGUY IWANABETHATGUY marked this pull request as ready for review May 25, 2026 06:46
@IWANABETHATGUY IWANABETHATGUY marked this pull request as draft May 25, 2026 06:54
@IWANABETHATGUY IWANABETHATGUY changed the title fix(generate): guard runtime-host reduction in dynamic-already-loaded test(rolldown): regression fixture for #9401 May 25, 2026
@IWANABETHATGUY IWANABETHATGUY marked this pull request as ready for review May 25, 2026 07:23
@IWANABETHATGUY IWANABETHATGUY merged commit e7c2b11 into main May 25, 2026
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@IWANABETHATGUY IWANABETHATGUY deleted the 05-16-fix_9401 branch May 25, 2026 07:25
V1OL3TF0X pushed a commit to V1OL3TF0X/rolldown that referenced this pull request May 25, 2026
The bug is fixed by rolldown#9514, so this PR only adds the regression test.

close rolldown#9401

The fixture exercises the dynamic-import + CJS-require shape from the
issue: a static `assertNoStaticImportCycle` check against the dist graph
plus a runtime `await import('./dist/entry-0.js')` smoke to catch the
original `TypeError: __exportAll is not a function`.

**Why a regression test still matters.** Any optimization that moves or
merges the runtime host has to anticipate the static imports that
follow. There is no type or invariant enforcing this — it lives entirely
in the head of whoever wrote each optimization pass. Forgetting it
silently introduces a circular import, which is exactly the bug in
rolldown#9401.

**Planned follow-up.** A subsequent PR will restructure this: split the
runtime module into a standalone chunk during optimization, then merge
it into an existing chunk as a final step *after* helper usages are
attached. Optimization will then see a complete graph, and the kind of
ad-hoc guarding rolldown#9514 added can be removed.
@shulaoda shulaoda mentioned this pull request May 27, 2026
shulaoda added a commit that referenced this pull request May 27, 2026
## [1.0.3] - 2026-05-27

### 🚀 Features

- transform: respect decorator strictNullChecks option (#9580) by @kylecannon
- drop `defer` keyword (#9503) by @TheAlexLichter

### 🐛 Bug Fixes

- ci: create target dir before cargo release-oxc update (#9584) by @shulaoda
- ci: reorder prepare-release steps to avoid dirty git check failure (#9583) by @shulaoda
- testing: canonicalize temp dir early and use platform-specific separator in test262 (#9582) by @shulaoda
- testing: resolve symlinked temp dir in test262 snapshot normalization (#9581) by @shulaoda
- testing: canonicalize temp dir path in test262 snapshot normalization (#9579) by @shulaoda
- dev: `onOutput` called twice when initial build fails (#9552) by @hyf0
- dev: make `ensureCurrentBuildFinish` not returning error when engine closes (#9564) by @h-a-n-a
- oxc-runtime: route require() to CJS helper variant (#9263) (#9526) by @IWANABETHATGUY
- generator: use exporter chunk's export mode for CJS default re-exports (#9299) (#9529) by @IWANABETHATGUY
- rolldown: always run reduced-atom static cycle check (#9441) (#9514) by @IWANABETHATGUY
- apply transform.dropLabels before scanning (#9521) (#9522) by @IWANABETHATGUY
- rolldown_watcher: take `rolldown` dep through the workspace (#9510) by @Boshen
- cache: keep the scan-stage cache consistent when a build fails (#9495) by @h-a-n-a
- skip JSON default-import namespace optimization for write targets (#9484) (#9489) by @IWANABETHATGUY
- deps: skip pnpm frozen-lockfile on Netlify to dodge catalog mismatch bug (#9471) by @Boshen

### 🚜 Refactor

- oxc-runtime: use Cow for helper path construction (#9538) by @IWANABETHATGUY
- fold import defer phase drop into PreProcessor (#9524) by @IWANABETHATGUY
- distinguish `map: null` vs `map: undefined` in transform hook output (#9497) by @sapphi-red

### 📚 Documentation

- explain the policy for Rust crates (#9547) by @sapphi-red
- cache: add design doc for cache (#9544) by @h-a-n-a
- guide/troubleshooting: add TDZ error section (#9537) by @sapphi-red
- dev-engine: add design doc for dev-engine (#9479) by @h-a-n-a
- lazy-barrel: tweak some words (#9483) by @shulaoda
- lazy-barrel: expand reasoning behind LARGE_BARREL_MODULES advice (#9477) by @shulaoda

### ⚡ Performance

- generate: thread ast_table by value into codegen consumer (#9555) by @Boshen
- finalizers: replace `_reExport` construction with a direct call to avoid calling `clone_in` (#9501) by @Dunqing
- reorder hot-path boolean checks to short-circuit on cheap predicates first (#9523) by @Boshen

### 🧪 Testing

- rolldown: regression fixture for #9401 (#9418) by @IWANABETHATGUY
- failing test for #9441 (#9504) by @TheAlexLichter

### ⚙️ Miscellaneous Tasks

- deps: upgrade oxc to 0.133.0 (#9563) by @Dunqing
- deps: update crate-ci/typos action to v1.46.3 (#9576) by @renovate[bot]
- deps: update mimalloc-safe to 0.1.62 (#9577) by @shulaoda
- mimalloc-safe: update to a bug-fix branch for verification (#9569) by @shulaoda
- deps: update test262 submodule for tests (#9551) by @rolldown-guard[bot]
- point published crates' readme to root README.md (#9553) by @Boshen
- replace actions-cool/issues-helper with gh CLI (#9543) by @Boshen
- deps: update cargo-shear to 1.12.4 (#9541) by @Boshen
- deps: update taiki-e/install-action action to v2.79.4 (#9535) by @renovate[bot]
- deps: update github actions (#9532) by @renovate[bot]
- deps: update rust crates (#9534) by @renovate[bot]
- deps: update npm packages (#9533) by @renovate[bot]
- gate experimental/testing-only items to silence dead_code in publish builds (#9517) by @Boshen
- docs: deploy to Void (#9509) by @Boshen
- release: set up cargo-release-oxc for publishing crates (#9476) by @Boshen
- rolldown_plugin_lazy_compilation: add missing description (#9507) by @Boshen
- mimalloc-safe: update to a bug-fix branch for verification (#9506) by @shulaoda
- deps: update crate-ci/typos action to v1.46.2 (#9468) by @renovate[bot]

### ❤️ New Contributors

* @kylecannon made their first contribution in [#9580](#9580)
shulaoda pushed a commit that referenced this pull request May 27, 2026
## [1.0.3] - 2026-05-27

### 🚀 Features

- transform: respect decorator strictNullChecks option (#9580) by @kylecannon
- drop `defer` keyword (#9503) by @TheAlexLichter

### 🐛 Bug Fixes

- ci: create target dir before cargo release-oxc update (#9584) by @shulaoda
- ci: reorder prepare-release steps to avoid dirty git check failure (#9583) by @shulaoda
- testing: canonicalize temp dir early and use platform-specific separator in test262 (#9582) by @shulaoda
- testing: resolve symlinked temp dir in test262 snapshot normalization (#9581) by @shulaoda
- testing: canonicalize temp dir path in test262 snapshot normalization (#9579) by @shulaoda
- dev: `onOutput` called twice when initial build fails (#9552) by @hyf0
- dev: make `ensureCurrentBuildFinish` not returning error when engine closes (#9564) by @h-a-n-a
- oxc-runtime: route require() to CJS helper variant (#9263) (#9526) by @IWANABETHATGUY
- generator: use exporter chunk's export mode for CJS default re-exports (#9299) (#9529) by @IWANABETHATGUY
- rolldown: always run reduced-atom static cycle check (#9441) (#9514) by @IWANABETHATGUY
- apply transform.dropLabels before scanning (#9521) (#9522) by @IWANABETHATGUY
- rolldown_watcher: take `rolldown` dep through the workspace (#9510) by @Boshen
- cache: keep the scan-stage cache consistent when a build fails (#9495) by @h-a-n-a
- skip JSON default-import namespace optimization for write targets (#9484) (#9489) by @IWANABETHATGUY
- deps: skip pnpm frozen-lockfile on Netlify to dodge catalog mismatch bug (#9471) by @Boshen

### 🚜 Refactor

- oxc-runtime: use Cow for helper path construction (#9538) by @IWANABETHATGUY
- fold import defer phase drop into PreProcessor (#9524) by @IWANABETHATGUY
- distinguish `map: null` vs `map: undefined` in transform hook output (#9497) by @sapphi-red

### 📚 Documentation

- explain the policy for Rust crates (#9547) by @sapphi-red
- cache: add design doc for cache (#9544) by @h-a-n-a
- guide/troubleshooting: add TDZ error section (#9537) by @sapphi-red
- dev-engine: add design doc for dev-engine (#9479) by @h-a-n-a
- lazy-barrel: tweak some words (#9483) by @shulaoda
- lazy-barrel: expand reasoning behind LARGE_BARREL_MODULES advice (#9477) by @shulaoda

### ⚡ Performance

- generate: thread ast_table by value into codegen consumer (#9555) by @Boshen
- finalizers: replace `_reExport` construction with a direct call to avoid calling `clone_in` (#9501) by @Dunqing
- reorder hot-path boolean checks to short-circuit on cheap predicates first (#9523) by @Boshen

### 🧪 Testing

- rolldown: regression fixture for #9401 (#9418) by @IWANABETHATGUY
- failing test for #9441 (#9504) by @TheAlexLichter

### ⚙️ Miscellaneous Tasks

- deps: upgrade oxc to 0.133.0 (#9563) by @Dunqing
- deps: update crate-ci/typos action to v1.46.3 (#9576) by @renovate[bot]
- deps: update mimalloc-safe to 0.1.62 (#9577) by @shulaoda
- mimalloc-safe: update to a bug-fix branch for verification (#9569) by @shulaoda
- deps: update test262 submodule for tests (#9551) by @rolldown-guard[bot]
- point published crates' readme to root README.md (#9553) by @Boshen
- replace actions-cool/issues-helper with gh CLI (#9543) by @Boshen
- deps: update cargo-shear to 1.12.4 (#9541) by @Boshen
- deps: update taiki-e/install-action action to v2.79.4 (#9535) by @renovate[bot]
- deps: update github actions (#9532) by @renovate[bot]
- deps: update rust crates (#9534) by @renovate[bot]
- deps: update npm packages (#9533) by @renovate[bot]
- gate experimental/testing-only items to silence dead_code in publish builds (#9517) by @Boshen
- docs: deploy to Void (#9509) by @Boshen
- release: set up cargo-release-oxc for publishing crates (#9476) by @Boshen
- rolldown_plugin_lazy_compilation: add missing description (#9507) by @Boshen
- mimalloc-safe: update to a bug-fix branch for verification (#9506) by @shulaoda
- deps: update crate-ci/typos action to v1.46.2 (#9468) by @renovate[bot]

### ❤️ New Contributors

* @kylecannon made their first contribution in [#9580](#9580)
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[Bug]: circular import generated when using dynamic import and require

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