Support `sourceType: "commonjs"` #17390

JLHwung · 2025-06-16T21:02:06Z

Q	A
Fixed Issues?	Fixes #17377
Patch: Bug Fix?
Major: Breaking Change?
Minor: New Feature?
Tests Added + Pass?	Yes
Documentation PR Link	babel/website#3106
Any Dependency Changes?
License	MIT

This pull request introduces support for a new commonjs sourceType in the @babel/parser and the @babel/core. When sourceType is commonjs, the program will parsed as if they are wrapped within a function body, thus allowing global return, top level new.target as well as top level using declarations. In this mode, the parser will try to mirror the parsing behaviour of the Node.js cjs environment.

I think this PR should resolve #17377. I plan to add another sourceType for the @babel/template usage: sourceType: "babel-template", ultimately it will be the default source type when people is constructing a Babel template. In this mode, any context-related AST restriction will be relaxed, for example: superOutsideMethod, yieldOutsideGenerator, or even breakRandomLabel, etc. Hopefully we can remove all allow* parser options in Babel 8.

See also:

sourceType: "commonjs" option in ESLint feat: Add sourceType:commonjs support eslint/js#520
sourceType: "commonjs" option in Acorn feat: add sourceType: commonjs option acornjs/acorn#1377

babel-bot · 2025-06-16T21:04:21Z

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/59664

nicolo-ribaudo · 2025-06-23T14:53:08Z

eslint/babel-eslint-parser/src/configuration.cts

-    // https://eslint.org/docs/latest/use/configure/language-options#specifying-javascript-options
-    // ESLint supports "commonjs" but Babel parser does not.
-    sourceType: sourceType === "commonjs" ? "script" : sourceType,
+    sourceType,


@babel/core is a peer dependency, we should probably check if we are on a version that supports commonjs.

OK, though it was the previous behavior before #17349.

Docs not updated https://github.com/babel/babel/tree/main/eslint/babel-eslint-parser#additional-parser-configuration

nicolo-ribaudo · 2025-06-23T14:54:09Z

packages/babel-parser/src/options.ts

   * "unambiguous" will make @babel/parser attempt to guess, based on the presence
   * of ES6 import or export statements.
   * Files with ES6 imports and exports are considered "module" and are otherwise "script".


If there is a top-level return, I guess we could make unambiguous mean commonjs? I don't know if it's useful.

The current behaviour is to throw illegal top level return. Since no one ever complaints about it and we may have a babel-tempalte sourceType in the future, I lean toward keeping the scope of unambiguous as-is.

liuxingbaoyu · 2025-06-23T15:06:25Z

I plan to add another sourceType for the @babel/template usage: sourceType: "babel-template", ultimately it will be the default source type when people is constructing a Babel template. In this mode, any context-related AST restriction will be relaxed, for example: superOutsideMethod, yieldOutsideGenerator, or even breakRandomLabel, etc. Hopefully we can remove all allow* parser options in Babel 8.

This seems to be the same as #17149 (comment) ?

JLHwung · 2025-06-23T15:53:13Z

I plan to add another sourceType for the @babel/template usage: sourceType: "babel-template", ultimately it will be the default source type when people is constructing a Babel template. In this mode, any context-related AST restriction will be relaxed, for example: superOutsideMethod, yieldOutsideGenerator, or even breakRandomLabel, etc. Hopefully we can remove all allow* parser options in Babel 8.

This seems to be the same as #17149 (comment) ?

Yes. While on one hand sourceType: "babel-template" seems to achieve the same effect of the then-proposed template: true option, on the other hand there are a few key differences:

The sourceType option conveys that this is a custom source type and is meant for Babel template only: For example we can decide that in Babel 8 sourceType: "babel-template" will be parsed as if they are wrapped within an async generator in a module source type. If one insists on usage for yield-as-identifier, await-as-identifier, they can use sourceType: "script" instead.
The sourceType option excludes interaction between the template option and other source types, which would be annoying since they would both affect certain parser flags

liuxingbaoyu · 2025-06-24T20:12:23Z

The sourceType option excludes interaction between the template option and other source types, which would be annoying since they would both affect certain parser flags

Ah, actually I thought so at first. :)

The new feature sounds good to me, except I'm not sure about removing the allow* options.

nicolo-ribaudo

I'd love to remove the allow* options in the feature -- we should look through issues/PRs where they have been added to make sure we are still covering all the use cases though.

I'd be fine with deferring it to Babel 9.

fisker · 2025-06-28T13:34:30Z

eslint/babel-eslint-parser/README.md

-      // your babel options
-      presets: ["@babel/preset-env"],
+  ```js
+  module.exports = {


Should this update to eslint.config.js format?

Yeah probably, I would also like to move them to the website as well. Of course that will be better addressed in another PR.

![snyk-io[bot]](https://badgen.net/badge/icon/snyk-io%5Bbot%5D/green?label=) ![Contributor](https://badgen.net/badge/icon/Contributor/000000?label=) [<img width="16" alt="Powered by Pull Request Badge" src="https://user-images.githubusercontent.com/1393946/111216524-d2bb8e00-85d4-11eb-821b-ed4c00989c02.png">](https://pullrequestbadge.com/?utm_medium=github&utm_source=reisene&utm_campaign=badge_info) ![snyk-top-banner](https://res.cloudinary.com/snyk/image/upload/r-d/scm-platform/snyk-pull-requests/pr-banner-default.svg) <h3>Snyk has created this PR to upgrade @babel/core from 7.27.4 to 7.28.0.</h3> :information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project. <hr/> - The recommended version is **2 versions** ahead of your current version. - The recommended version was released **a month ago**. #### Issues fixed by the recommended upgrade: | | Issue | Score | Exploit Maturity | :-------------------------:|:-------------------------|:-------------------------|:------------------------- ![low severity](https://res.cloudinary.com/snyk/image/upload/r-d/scm-platform/snyk-pull-requests//severity-low.svg 'low severity') | Regular Expression Denial of Service (ReDoS)<br/>[SNYK-JS-BRACEEXPANSION-9789073](https://snyk.io/vuln/SNYK-JS-BRACEEXPANSION-9789073) | **57** | Proof of Concept ![low severity](https://res.cloudinary.com/snyk/image/upload/r-d/scm-platform/snyk-pull-requests//severity-low.svg 'low severity') | Regular Expression Denial of Service (ReDoS)<br/>[SNYK-JS-BRACEEXPANSION-9789073](https://snyk.io/vuln/SNYK-JS-BRACEEXPANSION-9789073) | **57** | Proof of Concept <details> <summary><b>Release notes</b></summary> <br/> <details> <summary>Package name: <b>@babel/core</b></summary> <ul> <li> <b>7.28.0</b> - <a href="https://redirect.github.com/babel/babel/releases/tag/v7.28.0">2025-07-02</a></br><h2>v7.28.0 (2025-07-02)</h2> <h4>🚀 New Feature</h4> <ul> <li><code>babel-node</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17147" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17147/hovercard">#17147</a> Support top level await in node repl (<a href="https://redirect.github.com/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-types</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17258" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17258/hovercard">#17258</a> feat(matchesPattern): support super/private/meta (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-compat-data</code>, <code>babel-preset-env</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17355" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17355/hovercard">#17355</a> Add explicit resource management to preset-env (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-core</code>, <code>babel-parser</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17390" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17390/hovercard">#17390</a> Support <code>sourceType: "commonjs"</code> (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-generator</code>, <code>babel-parser</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17346" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17346/hovercard">#17346</a> Materialize <code>explicitResourceManagement</code> parser plugin (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-plugin-proposal-destructuring-private</code>, <code>babel-plugin-proposal-do-expressions</code>, <code>babel-plugin-transform-object-rest-spread</code>, <code>babel-traverse</code>, <code>babel-types</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17391" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17391/hovercard">#17391</a> LVal coverage updates (Part 2) (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-parser</code>, <code>babel-traverse</code>, <code>babel-types</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17378" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17378/hovercard">#17378</a> Accept bigints in <code>t.bigIntLiteral</code> factory (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-generator</code>, <code>babel-plugin-proposal-destructuring-private</code>, <code>babel-plugin-proposal-discard-binding</code>, <code>babel-plugin-transform-destructuring</code>, <code>babel-plugin-transform-explicit-resource-management</code>, <code>babel-plugin-transform-react-display-name</code>, <code>babel-types</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17277" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17277/hovercard">#17277</a> Transform discard binding (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-generator</code>, <code>babel-parser</code>, <code>babel-plugin-proposal-destructuring-private</code>, <code>babel-plugin-transform-block-scoping</code>, <code>babel-plugin-transform-object-rest-spread</code>, <code>babel-plugin-transform-typescript</code>, <code>babel-traverse</code>, <code>babel-types</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17163" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17163/hovercard">#17163</a> Parse discard binding (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> </ul> <h4>🐛 Bug Fix</h4> <ul> <li><code>babel-helper-globals</code>, <code>babel-plugin-transform-classes</code>, <code>babel-traverse</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17297" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17297/hovercard">#17297</a> Create babel-helper-globals (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-types</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17009" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17009/hovercard">#17009</a> feature: TSTypeOperator: keyof (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="2502652054" data-permission-text="Title is private" data-url="babel/babel#16799" data-hovercard-type="issue" data-hovercard-url="/babel/babel/issues/16799/hovercard" href="https://redirect.github.com/babel/babel/issues/16799">#16799</a>) (<a href="https://redirect.github.com/coderaiser">@ coderaiser</a>)</li> </ul> </li> </ul> <h4>🏠 Internal</h4> <ul> <li><code>babel-compat-data</code>, <code>babel-plugin-proposal-decorators</code>, <code>babel-plugin-transform-async-generator-functions</code>, <code>babel-plugin-transform-json-modules</code>, <code>babel-plugin-transform-regenerator</code>, <code>babel-plugin-transform-runtime</code>, <code>babel-preset-env</code>, <code>babel-runtime-corejs3</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17403" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17403/hovercard">#17403</a> Update <code>babel-polyfill</code> packages (<a href="https://redirect.github.com/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> </ul> <h4>Committers: 5</h4> <ul> <li>Babel Bot (<a href="https://redirect.github.com/babel-bot">@ babel-bot</a>)</li> <li>Huáng Jùnliàng (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> <li>Nicolò Ribaudo (<a href="https://redirect.github.com/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> <li><a href="https://redirect.github.com/liuxingbaoyu">@ liuxingbaoyu</a></li> <li>coderaiser (<a href="https://redirect.github.com/coderaiser">@ coderaiser</a>)</li> </ul> </li> <li> <b>7.27.7</b> - <a href="https://redirect.github.com/babel/babel/releases/tag/v7.27.7">2025-06-26</a></br><h2>v7.27.7 (2025-06-26)</h2> <p>Thanks <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/arthur-mountain/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/arthur-mountain">@ arthur-mountain</a> and <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/evankanderson/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/evankanderson">@ evankanderson</a> for your first PRs!</p> <h4>👓 Spec Compliance</h4> <ul> <li><code>babel-parser</code>, <code>babel-plugin-transform-classes</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17203" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17203/hovercard">#17203</a> Interepret parser <code>allow*</code> options as top level only (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-parser</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17371" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17371/hovercard">#17371</a> fix: disable using in ambient context (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> </ul> <h4>🐛 Bug Fix</h4> <ul> <li><code>babel-core</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17392" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17392/hovercard">#17392</a> Improve TS babel config loading (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-types</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17376" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17376/hovercard">#17376</a> fix: support negative bigint in valueToNode (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-plugin-transform-parameters</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17352" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17352/hovercard">#17352</a> fix: Params of <code>async function*</code> should throw synchronously (<a href="https://redirect.github.com/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> </ul> <h4>🏠 Internal</h4> <ul> <li><code>babel-plugin-transform-destructuring</code>, <code>babel-plugin-transform-object-rest-spread</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17389" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17389/hovercard">#17389</a> Use <code>NodePath#splitExportDeclaration</code> in destructuring transforms (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> </ul> <h4>Committers: 6</h4> <ul> <li>Arthur (<a href="https://redirect.github.com/arthur-mountain">@ arthur-mountain</a>)</li> <li>Babel Bot (<a href="https://redirect.github.com/babel-bot">@ babel-bot</a>)</li> <li>Evan Anderson (<a href="https://redirect.github.com/evankanderson">@ evankanderson</a>)</li> <li>Huáng Jùnliàng (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> <li>Nicolò Ribaudo (<a href="https://redirect.github.com/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> <li><a href="https://redirect.github.com/liuxingbaoyu">@ liuxingbaoyu</a></li> </ul> </li> <li> <b>7.27.4</b> - <a href="https://redirect.github.com/babel/babel/releases/tag/v7.27.4">2025-05-30</a></br><h2>v7.27.4 (2025-05-30)</h2> <h4>👓 Spec Compliance</h4> <ul> <li><code>babel-parser</code>, <code>babel-plugin-proposal-explicit-resource-management</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17323" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17323/hovercard">#17323</a> Disallow using in bare case statement (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> </ul> <h4>💅 Polish</h4> <ul> <li><code>babel-parser</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17311" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17311/hovercard">#17311</a> Improve parseExpression error messages (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> </ul> </li> </ul> <h4>🔬 Output optimization</h4> <ul> <li><code>babel-helpers</code>, <code>babel-plugin-transform-async-generator-functions</code>, <code>babel-plugin-transform-async-to-generator</code>, <code>babel-plugin-transform-block-scoping</code>, <code>babel-plugin-transform-classes</code>, <code>babel-plugin-transform-destructuring</code>, <code>babel-plugin-transform-regenerator</code>, <code>babel-plugin-transform-runtime</code>, <code>babel-preset-env</code>, <code>babel-runtime-corejs2</code>, <code>babel-runtime-corejs3</code>, <code>babel-runtime</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17287" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17287/hovercard">#17287</a> Reduce <code>regenerator</code> size more (<a href="https://redirect.github.com/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-helpers</code>, <code>babel-plugin-transform-async-generator-functions</code>, <code>babel-plugin-transform-async-to-generator</code>, <code>babel-plugin-transform-block-scoping</code>, <code>babel-plugin-transform-classes</code>, <code>babel-plugin-transform-destructuring</code>, <code>babel-plugin-transform-regenerator</code>, <code>babel-plugin-transform-runtime</code>, <code>babel-preset-env</code>, <code>babel-runtime-corejs3</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17334" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17334/hovercard">#17334</a> Use shorter method names for regenerator context (<a href="https://redirect.github.com/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> <li><a href="https://redirect.github.com/babel/babel/pull/17268" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17268/hovercard">#17268</a> Reduce <code>regenerator</code> helper size (<a href="https://redirect.github.com/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-core</code>, <code>babel-helpers</code>, <code>babel-plugin-transform-async-generator-functions</code>, <code>babel-plugin-transform-async-to-generator</code>, <code>babel-plugin-transform-block-scoping</code>, <code>babel-plugin-transform-classes</code>, <code>babel-plugin-transform-destructuring</code>, <code>babel-plugin-transform-regenerator</code>, <code>babel-plugin-transform-runtime</code>, <code>babel-preset-env</code>, <code>babel-runtime-corejs2</code>, <code>babel-runtime-corejs3</code>, <code>babel-runtime</code>, <code>babel-standalone</code> <ul> <li><a href="https://redirect.github.com/babel/babel/pull/17238" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/17238/hovercard">#17238</a> Split <code>regeneratorRuntime</code> into multiple helpers (<a href="https://redirect.github.com/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> </ul> <h4>Committers: 4</h4> <ul> <li>Babel Bot (<a href="https://redirect.github.com/babel-bot">@ babel-bot</a>)</li> <li>Huáng Jùnliàng (<a href="https://redirect.github.com/JLHwung">@ JLHwung</a>)</li> <li>Nicolò Ribaudo (<a href="https://redirect.github.com/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> <li><a href="https://redirect.github.com/liuxingbaoyu">@ liuxingbaoyu</a></li> </ul> </li> </ul> from <a href="https://redirect.github.com/babel/babel/releases">@babel/core GitHub release notes</a> </details> </details> --- > [!IMPORTANT] > > - Check the changes in this PR to ensure they won't cause issues with your project. > - This PR was automatically created by Snyk using the credentials of a real user. > - Max score is 1000. Note that the real score may have changed since the PR was raised. --- **Note:** _You are seeing this because you or someone else with access to this repository has authorized Snyk to open upgrade PRs._ **For more information:** <img src="https://api.segment.io/v1/pixel/track?data=eyJ3cml0ZUtleSI6InJyWmxZcEdHY2RyTHZsb0lYd0dUcVg4WkFRTnNCOUEwIiwiYW5vbnltb3VzSWQiOiJkY2E1YzY4OS02Njg0LTQ4YzctODkwMy1lOWFlMTA2M2E1YTkiLCJldmVudCI6IlBSIHZpZXdlZCIsInByb3BlcnRpZXMiOnsicHJJZCI6ImRjYTVjNjg5LTY2ODQtNDhjNy04OTAzLWU5YWUxMDYzYTVhOSJ9fQ==" width="0" height="0"/> > - 🧐 [View latest project report](https://app.snyk.io/org/reisene/project/55e114f8-489e-4f14-b900-20574b041e59?utm_source=github-cloud-app&utm_medium=referral&page=upgrade-pr) > - 📜 [Customise PR templates](https://docs.snyk.io/scan-using-snyk/pull-requests/snyk-fix-pull-or-merge-requests/customize-pr-templates?utm_source=&utm_content=fix-pr-template) > - 🛠 [Adjust upgrade PR settings](https://app.snyk.io/org/reisene/project/55e114f8-489e-4f14-b900-20574b041e59/settings/integration?utm_source=github-cloud-app&utm_medium=referral&page=upgrade-pr) > - 🔕 [Ignore this dependency or unsubscribe from future upgrade PRs](https://app.snyk.io/org/reisene/project/55e114f8-489e-4f14-b900-20574b041e59/settings/integration?pkg=@babel/core&utm_source=github-cloud-app&utm_medium=referral&page=upgrade-pr#auto-dep-upgrades) [//]: # 'snyk:metadata:{"customTemplate":{"variablesUsed":[],"fieldsUsed":[]},"dependencies":[{"name":"@babel/core","from":"7.27.4","to":"7.28.0"}],"env":"prod","hasFixes":true,"isBreakingChange":false,"isMajorUpgrade":false,"issuesToFix":["SNYK-JS-BRACEEXPANSION-9789073","SNYK-JS-BRACEEXPANSION-9789073"],"prId":"dca5c689-6684-48c7-8903-e9ae1063a5a9","prPublicId":"dca5c689-6684-48c7-8903-e9ae1063a5a9","packageManager":"npm","priorityScoreList":[57],"projectPublicId":"55e114f8-489e-4f14-b900-20574b041e59","projectUrl":"https://app.snyk.io/org/reisene/project/55e114f8-489e-4f14-b900-20574b041e59?utm_source=github-cloud-app&utm_medium=referral&page=upgrade-pr","prType":"upgrade","templateFieldSources":{"branchName":"default","commitMessage":"default","description":"default","title":"default"},"templateVariants":["priorityScore"],"type":"auto","upgrade":["SNYK-JS-BRACEEXPANSION-9789073","SNYK-JS-BRACEEXPANSION-9789073"],"upgradeInfo":{"versionsDiff":2,"publishedDate":"2025-07-02T08:38:28.293Z"},"vulns":["SNYK-JS-BRACEEXPANSION-9789073","SNYK-JS-BRACEEXPANSION-9789073"]}'

JLHwung added PR: New Feature 🚀 A type of pull request used for our changelog categories pkg: parser labels Jun 16, 2025

JLHwung marked this pull request as draft June 16, 2025 21:05

JLHwung force-pushed the source-type-commonjs branch from c769278 to 2478fe6 Compare June 23, 2025 13:54

JLHwung added the PR: Needs Docs label Jun 23, 2025

JLHwung marked this pull request as ready for review June 23, 2025 14:08

JLHwung requested review from liuxingbaoyu and nicolo-ribaudo June 23, 2025 14:08

nicolo-ribaudo reviewed Jun 23, 2025

View reviewed changes

JLHwung mentioned this pull request Jun 24, 2025

Docs and REPL support for sourceType: "commonjs" babel/website#3106

Merged

JLHwung removed the PR: Needs Docs label Jun 24, 2025

liuxingbaoyu approved these changes Jun 24, 2025

View reviewed changes

nicolo-ribaudo approved these changes Jun 27, 2025

View reviewed changes

nicolo-ribaudo added the PR: Ready to be Merged A pull request with already two approvals, but waiting for the next minor release label Jun 27, 2025

nicolo-ribaudo added this to the v7.28.0 milestone Jun 27, 2025

JLHwung added 10 commits June 28, 2025 08:01

feat: support sourceType: commonjs

759b6b1

fix: improve eslint-parser souceType: commonjs handling

8c2fc43

allow sourceType: commonjs in babel/core

2b0f4ea

set program.sourceType to script for commonjs

a4622d3

feat: disallow some allow* parser flags in commonjs mode

5592895

do not set allowReturnOutsideFunction for commonjs source type

6f5183f

update error messages

8f0aa22

normalize Windows path

829e632

fix option typo

37489fe

add souceType: "commonjs" compatibility layer

cdc02c7

JLHwung added 2 commits June 28, 2025 08:01

update default ecmaVersion to latest

1da181d

update eslint-parser docs

8b6fcff

JLHwung force-pushed the source-type-commonjs branch from 709bf48 to 8b6fcff Compare June 28, 2025 12:02

fisker reviewed Jun 28, 2025

View reviewed changes

Merge branch 'main' into source-type-commonjs

7f546d3

nicolo-ribaudo merged commit 7896ed7 into babel:main Jun 29, 2025
96 of 97 checks passed

nicolo-ribaudo deleted the source-type-commonjs branch June 29, 2025 20:34

github-actions bot added the outdated A closed issue/PR that is archived due to age. Recommended to make a new issue label Sep 29, 2025

github-actions bot locked as resolved and limited conversation to collaborators Sep 29, 2025

Uh oh!

Support sourceType: "commonjs" #17390

Support sourceType: "commonjs" #17390

Uh oh!

Conversation

JLHwung commented Jun 16, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

babel-bot commented Jun 16, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

nicolo-ribaudo Jun 23, 2025

Choose a reason for hiding this comment

Uh oh!

JLHwung Jun 23, 2025

Choose a reason for hiding this comment

Uh oh!

fisker Jun 28, 2025

Choose a reason for hiding this comment

Uh oh!

nicolo-ribaudo Jun 23, 2025

Choose a reason for hiding this comment

Uh oh!

JLHwung Jun 23, 2025

Choose a reason for hiding this comment

Uh oh!

liuxingbaoyu commented Jun 23, 2025

Uh oh!

JLHwung commented Jun 23, 2025

Uh oh!

liuxingbaoyu commented Jun 24, 2025

Uh oh!

nicolo-ribaudo left a comment

Choose a reason for hiding this comment

Uh oh!

fisker Jun 28, 2025

Choose a reason for hiding this comment

Uh oh!

JLHwung Jun 28, 2025

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

5 participants

Support `sourceType: "commonjs"` #17390

Support `sourceType: "commonjs"` #17390

JLHwung commented Jun 16, 2025 •

edited

Loading

babel-bot commented Jun 16, 2025 •

edited

Loading