fix: avoid panic on invalid values for output.exports, output.format, output.hash_characters#7542
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Pull request overview
This PR improves error handling in the binding layer by replacing panics with proper error returns for invalid configuration values. When users provide invalid values for output.exports, output.format, or output.hashCharacters, the code now returns helpful error messages instead of causing a panic.
Key Changes
- Replaced
panic!calls withnapi::Error::new(napi::Status::InvalidArg, ...)for three output configuration options - Used the
.map(...).transpose()?pattern to handle validation errors withinOptiontypes - Added clear, descriptive error messages that list all valid values for each option
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Benchmarks Rust
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hyf0
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Dec 17, 2025
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…at`, `output.hash_characters` (#7542) I noticed that there're panic calls here. I've fixed them to return an error instead.
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## [1.0.0-beta.55] - 2025-12-17 ### 🚀 Features - add validation errors for incompatible `inlineDynamicImports` options (#7539) by @Copilot - rolldown_plugin_vite_reporter: truncate long importer lists in ineffective dynamic import warnings (#7528) by @Copilot - export `memfs` from `rolldown/experimental` for browser builds (#7490) by @Copilot - implement `postBanner` and `postFooter` (#7487) by @sevenc-nanashi - port getLogFilter helper from Rollup for advanced log filtering (#6890) by @taearls - dev: initialize `rolldown_plugin_lazy_compilation` (#7488) by @hyf0 - enable `experimental.transform_hires_sourcemap: 'boundary'` by default (#7478) by @sapphi-red - apply merge CJS namespace optimizations more generally (#7475) by @sapphi-red ### 🐛 Bug Fixes - avoid panic on invalid values for `output.exports`, `output.format`, `output.hash_characters` (#7542) by @sapphi-red - handle `__proto__` export for module namespace correctly (#7534) by @sapphi-red - handle `__proto__` export correctly (#7533) by @sapphi-red - rolldown_plugin_vite_resolve: acquire resolver lock before package json resolution (#7524) by @sapphi-red - disable syntax transform optimization for `minify: 'dce-only'` (#7520) by @sapphi-red - arrow function expression keep names (#7519) by @IWANABETHATGUY - skip symbols that are imported from other module when deconflicting module symbols (#7510) by @IWANABETHATGUY - preserve class names in assignment expressions with keepNames option (#7491) by @IWANABETHATGUY - accessor with decorators should be kept (#7499) by @Copilot - rolldown_plugin_vite_reporter: support `Infinity` for chunk_limit (#7497) by @shulaoda - change filename template validation errors from UNHANDLEABLE_ERROR to INVALID_OPTION (#7472) by @Copilot - `no entry found for key` error when merging CJS namespace exports (#7474) by @sapphi-red - generate output with syntax error when wrapped esm module using tla syntax (#7468) by @IWANABETHATGUY ### 🚜 Refactor - dev: rename `experimental.hmr` to `experimental.devMode` (#7527) by @hyf0 - pass addon option to rust as it is (#7526) by @hyf0 - remove unused stmtinfo meta flag (#7518) by @IWANABETHATGUY ### 📚 Documentation - clarify `closeBundle` behavior (#7525) by @sapphi-red ### 🧪 Testing - add tests for static string postBanner and postFooter (#7516) by @Copilot - disable pluginTimings in Rust integration tests to avoid snapshot noise (#7485) by @shulaoda - port Rollup JSX tests to `crates/rolldown/tests/rollup` (#7480) by @sapphi-red - re-triage some esbuild JSX preserve tests (#7479) by @sapphi-red - disable pluginTimings by default to avoid snapshot noise (#7471) by @shulaoda ### ⚙️ Miscellaneous Tasks - mark feature that will not be supported as ignored in rollup test status (#7535) by @sapphi-red - support `banner`/`footer`/`intro`/`outro` for config variants (#7532) by @sapphi-red - `dce/dce_of_decorators` esbuild test is now passing (#7531) by @sapphi-red - deps: update github-actions (major) (#7495) by @renovate[bot] - deps: update npm packages (#7493) by @renovate[bot] - add a check to verify failedReasons are updated (#7521) by @sapphi-red - deps: update test262 submodule for tests (#7523) by @sapphi-red - deps: update taiki-e/install-action action to v2.63.2 (#7496) by @renovate[bot] - deps: update oxc apps (#7511) by @renovate[bot] - deps: update oxc to v0.103.0 (#7513) by @camc314 - fix format in `.github/instructions/bug-investigation.instructions.md` (#7506) by @sapphi-red - add instructions for REPL decoding (#7502) by @sapphi-red - deps: update github-actions (#7492) by @renovate[bot] - deps: cargo-shear v1.9.0 (#7483) by @Boshen - deps: update dependency oxlint-tsgolint to v0.9.0 (#7484) by @renovate[bot] - deps: update dependency oxlint-tsgolint to v0.8.6 (#7470) by @renovate[bot] - add syntax validation for test output chunks that are not executed (#7466) by @IWANABETHATGUY - deps: update dependency rust to v1.92.0 (#7467) by @renovate[bot] - deps: update test262 submodule for tests (#7457) by @sapphi-red ### ❤️ New Contributors * @sevenc-nanashi made their first contribution in [#7487](#7487) * @taearls made their first contribution in [#6890](#6890) Co-authored-by: shulaoda <[email protected]>
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I noticed that there're panic calls here. I've fixed them to return an error instead.