web-infra-dev/rspack v1.5.8

on GitHub

Highlights 💡

Enhanced Tree Shaking for Nested Exports in Destructuring

Rspack now supports more precise tree shaking for nested exports accessed through destructuring assignments.

// lib.js
export * as a from "./a";
export * as b from "./b";

// index.js
import * as lib from "./lib";
// Before: All exports under `lib.a` were retained, only `lib.b` was tree-shaken
// Now: Only the specific property `inner` from `lib.a` is kept; everything else is removed
const { a: { inner } } = lib;

What's Changed

Performance Improvements ⚡

• perf: rspack sources buffer function by @SyMind in #11749
• perf: avoid unnecessary source map creation by @CPunisher in #11773

New Features 🎉

• feat: should retain source error name by @SyMind in #11762
• feat(parser): add commonjs options by @fi3ework in #11744
• feat: transform url in new URL without runtime by @JSerFeng in #11765
• feat: add experimental EsmLibraryPlugin for better esm output by @JSerFeng in #10350
• feat: tree shaking nested exports for destructuring assignment by @ahabhgk in #11781

Bug Fixes 🐞

• fix: cjs export require tree shaking by @ahabhgk in #11758
• fix: should always walk import then arguments by @ahabhgk in #11760
• fix: should update alias resolution when a higher-priority file is created in watch mode by @SyMind in #11643
• fix: should analyze correct variable for dynamic import by @ahabhgk in #11768
• fix: URLPlugin in child compiler by @SyMind in #11785

Refactor 🔨

• refactor: remove unused parameters and clean up code by @chenjiahan in #11756
• refactor: file counter save the resource id which used the file by @jerrykingxyz in #11757

Document Updates 📖

• docs: add commonjsMagicComments docs by @stormslowly in #11752
• docs: document parser jsx option by @fi3ework in #11767
• docs: add Snap to who is using section by @chenjiahan in #11777
• docs(style): remove unexpected borders on code block focus by @ritoban23 in #11784

Other Changes

• test: remove simple tester by @LingyuCoder in #11751
• chore(deps): update dependency memfs to v4.46.0 by @renovate[bot] in #11721
• test: close compiler by @LingyuCoder in #11764
• chore(deps): lock file maintenance by @renovate[bot] in #11726
• test: add persistent cache symlink test case by @jerrykingxyz in #11769
• chore(deps): update swc by @renovate[bot] in #11747

New Contributors

• @ritoban23 made their first contribution in #11784

Full Changelog: v1.5.7...v1.5.8