test(rust): fix flakiness of rust tests#8150
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shulaoda
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Pull request overview
This PR fixes flakiness in the rust test introduced by PR #8093, which tests that the runtime module (\0rolldown/runtime.js) can be transformed via plugin hooks. The flakiness stemmed from plugin state being stored in the plugin instance itself, which could cause race conditions when plugins are reused across multiple concurrent builds.
Changes:
- Introduced per-build state storage using
PluginContextMetato isolate state between concurrent builds - Refactored
RuntimeTransformPluginto be stateless, moving thetransform_calledflag toRuntimeTransformState - Updated hook implementations to initialize, access, and validate state through the plugin context's meta storage
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#8093 create a flaky rust test
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| let state = ctx | ||
| .meta() | ||
| .get::<RuntimeTransformState>() | ||
| .expect("RuntimeTransformState should be initialized in build_start"); |
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Inconsistent error handling: the transform hook uses .expect() which will panic if the state is not found, while the build_end hook (lines 61-63) uses .ok_or_else() to return a proper error. Consider using consistent error handling by replacing .expect() with .ok_or_else() to match the pattern in build_end.
Suggested change
| .expect("RuntimeTransformState should be initialized in build_start"); | |
| .ok_or_else(|| { | |
| anyhow::anyhow!("RuntimeTransformState not found - build_start may not have been called") | |
| })?; |
shulaoda
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## [1.0.0-rc.3] - 2026-02-04
⚡ Remove Unnecessary Default Export Assignment
- Eliminates redundant variable assignments when exporting default values
- Reduces output bundle size and improves code clarity
```js
// index.js
var x = 42;
export default x;
// Before
var x = 42;
var entry_default = x;
export { entry_default as default };
// After
var x = 42;
export { x as default };
```
🐛 Avoid Unnecessary Facade Chunks
- Keep user-defined entry modules in their own chunks
- Reduces HTTP round trips and improves startup performance
```js
// main.js (entry module)
import { a } from './lib.js'
console.log(a)
// lib.js
export * from './counter.js'
// counter.js (entry module)
export const a = 100
// Before
dist/
├── main.js → import { a } from './counter-chunk.js'; console.log(a)
├── counter.js → export { a } from './counter-chunk.js' // ❌ facade chunk
└── counter-chunk.js → export const a = 100
// After
dist/
├── main.js → import { a } from './counter.js'; console.log(a)
└── counter.js → export const a = 100
```
### 🚀 Features
- expose `RUNTIME_MODULE_ID` constant for plugin authors (#8199) by @shulaoda
- warn unsupported combination of `preserveValueImports` and `importsNotUsedAsValues` in tsconfig.json (#8169) by @sapphi-red
- sophisticated watch tracking for load dependencies (#8092) by @sapphi-red
- add `inputMap` option to `minify` / `minifySync` functions (#8138) by @sapphi-red
- consolidate same tsconfig errors (#8119) by @sapphi-red
- include tsconfig file path in error messages (#8107) by @Copilot
- lazy-barrel: support incremental build mode (#8114) by @shulaoda
### 🐛 Bug Fixes
- rust: preserve dependencies added by `this.addWatchFile` (#8198) by @hyf0
- spawn `RuntimeModuleTask` after `build_start` to avoid race condition (#8182) by @shulaoda
- rust/dev: only close after the ongoing task finished (#8147) by @hyf0
- ensure `\0rolldown/runtime.js` will go through transform hook and add test (#8093) by @hyf0
- `[name]` in `assetFileNames` does not include the directory part (#8098) by @IWANABETHATGUY
- handle external module properties in namespace imports (#8124) by @IWANABETHATGUY
- keep user-defined entry modules in their own chunks (#8047) by @IWANABETHATGUY
- avoid `Unknown resolve error` error message (#8111) by @sapphi-red
### 💼 Other
- remove warnings for building rolldown with `not(feature = "experimental")` (#8110) by @coolreader18
### 🚜 Refactor
- move `VERSION` to `constants` directory (#8200) by @shulaoda
- simplify import symbol check using `SymbolFlags` (#8193) by @shulaoda
- extract tsconfig option and transform options merging logic (#8168) by @sapphi-red
- filter empty module_groups before sorting (#8149) by @ShroXd
- lazy-barrel: use single `remove` instead of `contains_key` + `remove` (#8123) by @shulaoda
- lazy-barrel: avoid redundant call and inline `get_barrel_normal_module` (#8122) by @shulaoda
- use logger instead of console.log for warnings (#8117) by @IWANABETHATGUY
- module-loader: remove intermediate ModuleTaskOwnerRef type (#8113) by @shulaoda
- rename ReExportExternalModule to ReExportDynamicExports (#8104) by @IWANABETHATGUY
### 📚 Documentation
- add dynamic OG image generation (#8192) by @sapphi-red
- add dynamic OG image generation (#8191) by @sapphi-red
- add dynamic OG image generation (#8179) by @Copilot
- apis: add links to option descriptions in JSDoc comments (#8167) by @sapphi-red
- apis: clarify parameters of `resolveDynamicImport` hook (#8137) by @sapphi-red
- lazy-barrel: clarify default export behavior (#8128) by @shulaoda
### ⚡ Performance
- remove unnecessary assignment for default export (#8127) by @shulaoda
### 🧪 Testing
- dev: `this.addWatchFile` dependency should be preserved after reload (#8165) by @sapphi-red
- mark flaky `transform_runtime_module` test as ignored (#8178) by @Copilot
- rolldown_sourcemap: add test for coarse segments (#8166) by @sapphi-red
- dev: correctly assert file change (#8164) by @sapphi-red
- rust: `transform_runtime_module` test shouldn't panic inside (#8151) by @hyf0
- rust: fix flakiness of rust tests (#8150) by @hyf0
- mark `output.dynamicImportInCjs` tests as passed (#8125) by @shulaoda
- lazy-barrel: add test cases for default export (#8129) by @shulaoda
- rolldown_plugin_vite_manifest: use relative path for outPath (#8101) by @shulaoda
### ⚙️ Miscellaneous Tasks
- deps: update crate-ci/typos action to v1.43.1 (#8188) by @renovate[bot]
- deps: update rust crate ts-rs to v12 (#8160) by @renovate[bot]
- deps: update crate-ci/typos action to v1.43.0 (#8175) by @renovate[bot]
- deps: update rust crates (#8157) by @renovate[bot]
- deps: update oxc to v0.112.0 (#8171) by @renovate[bot]
- deps: update rollup submodule for tests to v4.57.1 (#8176) by @sapphi-red
- deps: update test262 submodule for tests (#8177) by @sapphi-red
- deps: update dependency oxlint to v1.43.0 (#8173) by @renovate[bot]
- deps: update dependency oxfmt to ^0.28.0 (#8170) by @renovate[bot]
- deps: update dependency rolldown-plugin-dts to v0.21.8 (#8163) by @renovate[bot]
- deps: update dependency vue-router to v5 (#8159) by @renovate[bot]
- deps: update github-actions (#8158) by @renovate[bot]
- deps: update npm packages (#8156) by @renovate[bot]
- deps: update dependency oxlint-tsgolint to v0.11.4 (#8140) by @renovate[bot]
- fix clippy replacement typo (#8136) by @IWANABETHATGUY
- disallow `HashMap::new` and `HashSet::new` by clippy (#8135) by @sapphi-red
- deps: update dependency rolldown-plugin-dts to v0.21.7 (#8126) by @renovate[bot]
- deps: update oxc resolver to v11.17.0 (#8121) by @renovate[bot]
- deps: update dependency oxlint-tsgolint to v0.11.3 (#8109) by @renovate[bot]
### ❤️ New Contributors
* @coolreader18 made their first contribution in [#8110](#8110)
Co-authored-by: shulaoda <165626830+shulaoda@users.noreply.github.com>
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#8093 create a flaky rust test