Build errors with "DataCloneError: #<Object> could not be cloned." using `rollup-plugin-webpack-stats`

[TheAlexLichter]

Describe the bug

Installing rollup-plugin-webpack-stats will crash the build command, due to the fact that the bundleEntry stats can't be cloned via structuredClone due to some parts (like code) being a getter. In plain vite, code (and others) are clonable types like strings.

// rolldown-vite
bundleEntryStats: {
    type: 'chunk',
    code: [Getter],
    fileName: 'assets/index-BHKjzJ0u.js',
    name: 'index',
    modules: [Getter],
    imports: [Getter],
    dynamicImports: [Getter],
    exports: [],
    isEntry: true,
    facadeModuleId: '/Users/alichter/Programming/rolldown-vite-reproductions/index.html',
    isDynamicEntry: false,
    moduleIds: [Getter],
    map: [Getter],
    sourcemapFileName: null,
    preliminaryFileName: 'assets/index-!~{000}~.js'
  }
}

// vite
  bundleEntryStats: {
    exports: [],
    facadeModuleId: '/Users/alichter/Programming/rolldown-vite-reproductions/index.html',
    isDynamicEntry: false,
    isEntry: true,
    isImplicitEntry: false,
    moduleIds: [
      '\x00vite/modulepreload-polyfill.js',
      '/Users/alichter/Programming/rolldown-vite-reproductions/src/main.ts',
      '/Users/alichter/Programming/rolldown-vite-reproductions/index.html'
    ],
    name: 'index',
    type: 'chunk',
    dynamicImports: [],
    fileName: 'assets/index-BYaVEE6b.js',
    implicitlyLoadedBefore: [],
    importedBindings: {},
    imports: [],
    modules: [Object: null prototype] {
      '\x00vite/modulepreload-polyfill.js': [Object],
      '/Users/alichter/Programming/rolldown-vite-reproductions/src/main.ts': [Object],
      '/Users/alichter/Programming/rolldown-vite-reproductions/index.html': [Object]
    },
    referencedFiles: [],
    viteMetadata: { importedAssets: Set(0) {}, importedCss: Set(0) {} },
    code: '(function(){const t=document.createElement("link").relList;if(t&&t.supports&&t.supports("modulepreload"))return;for(const e of document.querySelectorAll(\'link[rel="modulepreload"]\'))i(e);new MutationObserver(e=>{for(const r of e)if(r.type==="childList")for(const o of r.addedNodes)o.tagName==="LINK"&&o.rel==="modulepreload"&&i(o)}).observe(document,{childList:!0,subtree:!0});function n(e){const r={};return e.integrity&&(r.integrity=e.integrity),e.referrerPolicy&&(r.referrerPolicy=e.referrerPolicy),e.crossOrigin==="use-credentials"?r.credentials="include":e.crossOrigin==="anonymous"?r.credentials="omit":r.credentials="same-origin",r}function i(e){if(e.ep)return;e.ep=!0;const r=n(e);fetch(e.href,r)}})();document.querySelector("#app").innerHTML=`\n' +
      '  <div>\n' +
      '    \n' +
      '  </div>\n' +
      '`;\n',
    map: null,
    preliminaryFileName: 'assets/index-!~{001}~.js',
    sourcemapFileName: null
  }
}

Reproduction

https://github.com/TheAlexLichter/rolldown-vite-reproductions/tree/rolldown-vite-webpack-stats-plugin

Steps to reproduce

See README (pnpm i && pnpm build basically)

System Info

System:
    OS: macOS 15.3.2
    CPU: (12) arm64 Apple M2 Max
    Memory: 102.83 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - /usr/local/bin/node
    Yarn: 1.22.21 - /opt/homebrew/bin/yarn
    npm: 10.9.2 - /usr/local/bin/npm
    pnpm: 10.8.0 - ~/.npm/bin/pnpm
    bun: 1.0.30 - /opt/homebrew/bin/bun
  Browsers:
    Chrome: 135.0.7049.96
    Safari: 18.3.1
  npmPackages:
    rolldown-vite:  6.3.1

Used Package Manager

pnpm

Logs

Details

pnpm build

✗ Build failed in 23ms
error during build:
Build failed with 1 error:

TypeError: Cannot set property code of  which has only a getter
    at logPluginError (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown@1.0.0-beta.7-commit.a7cf9ac_@oxc-project+runtime@0.64.0_typescript@5.7.3/node_modules/rolldown/dist/shared/parse-ast-index-lybCSSSh.mjs:509:15)
    at plugin.<computed> (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown@1.0.0-beta.7-commit.a7cf9ac_@oxc-project+runtime@0.64.0_typescript@5.7.3/node_modules/rolldown/dist/shared/src-CY9fSPIv.mjs:2128:18)
    at normalizeErrors (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown@1.0.0-beta.7-commit.a7cf9ac_@oxc-project+runtime@0.64.0_typescript@5.7.3/node_modules/rolldown/dist/shared/src-CY9fSPIv.mjs:933:18)
    at handleOutputErrors (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown@1.0.0-beta.7-commit.a7cf9ac_@oxc-project+runtime@0.64.0_typescript@5.7.3/node_modules/rolldown/dist/shared/src-CY9fSPIv.mjs:1779:34)
    at transformToRollupOutput (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown@1.0.0-beta.7-commit.a7cf9ac_@oxc-project+runtime@0.64.0_typescript@5.7.3/node_modules/rolldown/dist/shared/src-CY9fSPIv.mjs:1773:2)
    at RolldownBuild.write (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown@1.0.0-beta.7-commit.a7cf9ac_@oxc-project+runtime@0.64.0_typescript@5.7.3/node_modules/rolldown/dist/shared/src-CY9fSPIv.mjs:4121:11)
    at async buildEnvironment (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown-vite@6.3.1_esbuild@0.25.2_typescript@5.7.3/node_modules/rolldown-vite/dist/node/chunks/dep-BTSkQaSA.js:44143:16)
    at async Object.defaultBuildApp [as buildApp] (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown-vite@6.3.1_esbuild@0.25.2_typescript@5.7.3/node_modules/rolldown-vite/dist/node/chunks/dep-BTSkQaSA.js:44647:5)
    at async CAC.<anonymous> (file:///Users/alichter/Programming/rolldown-vite-reproductions/node_modules/.pnpm/rolldown-vite@6.3.1_esbuild@0.25.2_typescript@5.7.3/node_modules/rolldown-vite/dist/node/cli.js:863:7)
 ELIFECYCLE  Command failed with exit code 1.

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs and the Rolldown-related guide.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sapphi-red]

This seems to be happening because of Proxy usage rather than the getter existence.

structuredClone(new Proxy({}, {})) // DataCloneError: #<Object> could not be cloned.

Because there's no way to control the behavior of structuredClone (like toJSON for JSON.stringify) and this Proxy is inevitable for better performance, I think this is a wont-fix on Rolldown / Vite side.

[sapphi-red]

I've added to "Intended behavior differences" in #84.

[TheAlexLichter]

Makes sense! I've linked a PR to resolve it in the plugin, as well as a Rolldown issue as it should log out a more descriptive error at least ☺️