web-infra-dev/rspack v1.0.0-beta.1

on GitHub

Highlights 💡

Import Attributes

Rspack now supports Import Attributes by defaults:

import json from "./foo.json" with { type: "json" };

import("foo.json", { with: { type: "json" } });

PR: #7333

Layers

Rspack now supports module and chunk layers. This feature can be used by frameworks like Rsnext (The Rspack-based Next.js) to implement React Server Components.

• Example: build modern and legacy bundles at the same time:

export default {
  entry: {
    index: {
      import: './src/index.js',
      layer: 'modern',
    },
    'index-legacy': {
      import: './src/index.js',
      layer: 'legacy',
    },
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        issuerLayer: 'modern',
        use: [
          {
            loader: 'builtin:swc-loader',
            options: {
              env: {
                targets: 'Chrome >= 87',
              },
            },
          },
        ],
      },
      {
        test: /\.js$/,
        issuerLayer: 'legacy',
        use: [
          {
            loader: 'builtin:swc-loader',
            options: {
              env: {
                targets: 'ie >= 11',
              },
            },
          },
        ],
      },
    ],
  },
  experiments: {
    layers: true,
  },
};

• Example: Customize rules and resolve options for RSC modules

export default {
  module: {
    rules: [
      // set `layer` for some modules
      {
        test: /rsc-modules/,
        layer: 'rsc',
      },
      // set resolve options for specified layer
      {
        issuerLayer: 'rsc',
        resolve: {
          conditionNames: ['react-server', '...'],
        },
      },
      {
        // set loaders for specified layer
        oneOf: [
          {
            issuerLayer: 'rsc',
            test: /\.tsx?$/,
            use: ['some-rsc-loader'],
          },
          {
            test: /\.tsx?$/,
            use: ['some-normal-loader'],
          },
        ],
      },
    ],
  },
  experiments: {
    layers: true,
  },
};

PR: #7330

What's Changed

Performance Improvements ⚡

• perf: no need to require entire enhanced-resolve by @chenjiahan in #7343
• perf(allocator): use mimalloc v2 for all by @h-a-n-a in #7361

Exciting New Features 🎉

• feat: experiments layers by @ahabhgk in #7330
• feat(css-extract): avoid reloading all CSS when hot load by @shulaoda in #7314
• feat(modern-module): force concaten single module by @fi3ework in #7317
• feat: better diagnostic report for harmony dependency by @shulaoda in #7337
• feat: support parser.importMeta and output.importMetaName by @xc2 in #7231

Bug Fixes 🐞

• fix: lightningcss-loader targets array not work as expected by @chenjiahan in #7331
• fix(rspack_plugin_asset): repect user environment config when inlining svg by @SoonIter in #7347
• fix: rspack errors don't support the correct location by @shulaoda in #7328
• fix: add runtime condition for harmony reexport checked by @ahabhgk in #7353
• fix: remove nonsensical intersection types by @colinaaa in #7360
• fix: builtin:lightningcss-loader shuold keep loader query by @JSerFeng in #7363

Document Updates 📖

• docs(devServer): update webpack-dev-server v5 by @SoonIter in #7319
• docs(blog): correcting the description of decorator configuration in v0.4 by @Mumujianguang in #7320
• docs: add compilation object by @LingyuCoder in #7321
• docs: add serwist in community compatibility table by @JoseVSeb in #7345
• docs: include types from common mdx chunks by @LingyuCoder in #7323
• docs: enable prettier for types in website by @Timeless0911 in #7350
• docs: import antd on demand by @Timeless0911 in #7351
• docs: bad symbol in compilation-hooks.mdx by @h-a-n-a in #7352
• docs: improve CssExtractRspackPlugin by @chenjiahan in #7362
• docs: add Logger API by @LingyuCoder in #7365

Other Changes

• chore: add funding page by @hardfist in #7318
• chore(deps): crates update by @SoonIter in #7342
• refactor(typescript): packages/rspack/src/lib from js to ts and esm by @shulaoda in #7289
• chore(infra/biome): switch the biome.jsonc to "off" by @SoonIter in #7357
• refactor: remove module graph accessor by @ahabhgk in #7368
• chore(webpack-test): remove unnecessary snapshots by @shulaoda in #7329

New Contributors

• @Mumujianguang made their first contribution in #7320
• @JoseVSeb made their first contribution in #7345

Full Changelog: v1.0.0-beta.0...v1.0.0-beta.1