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Add annexb: false
parser option to disable Annex B
#15320
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Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/53738/ |
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The changes LGTM. If we would like annexB: false
to be the Babel 8 default, we can actually start phasing it out from the next minor: we can recover from the annexB and emit warnings such as
you are using legacy annexB language features. It will be disabled by default in Babel 8, before you migrate your codebase, you can specify
parserOpts: { annexB: true }
in your Babel config to suppress this warning.
For most users who, assumingly, don't use annexB features, they don't have to worry about the annexB parser breaking changes at all if they upgrade from the latest Babel 7 version.
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It's good enough for me as a parser option, though I wouldn't block changes to a plugin in babel8.
The only problem is that error recovery is not enabled by default, so that would be an hard error for most users. |
<h3>Snyk has created this PR to upgrade @babel/core from 7.20.12 to 7.21.0.</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 **1 version** ahead of your current version. - The recommended version was released **24 days ago**, on 2023-02-20. <details> <summary><b>Release notes</b></summary> <br/> <details> <summary>Package name: <b>@babel/core</b></summary> <ul> <li> <b>7.21.0</b> - <a href="https://snyk.io/redirect/github/babel/babel/releases/tag/v7.21.0">2023-02-20</a></br><h2>v7.21.0 (2023-02-20)</h2> <p>Thanks <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/azizghuloum/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://snyk.io/redirect/github/azizghuloum">@ azizghuloum</a>, <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/ehoogeveen-medweb/hovercard" data-octo-click="hovercard-link-click" 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<code>babel-plugin-proposal-private-methods</code>, <code>babel-plugin-proposal-private-property-in-object</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15435" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15435/hovercard">#15435</a> feat: Implement <code>privateFieldsAsSymbols</code> assumption for classes (<a href="https://snyk.io/redirect/github/fwienber">@ fwienber</a>)</li> </ul> </li> <li><code>babel-helper-create-regexp-features-plugin</code>, <code>babel-plugin-proposal-regexp-modifiers</code>, <code>babel-standalone</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15226" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15226/hovercard">#15226</a> feat: Support regexp modifiers proposal (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-cli</code>, <code>babel-core</code>, <code>babel-generator</code>, 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<code>babel-plugin-proposal-decorators</code>, <code>babel-plugin-syntax-decorators</code>, <code>babel-runtime-corejs2</code>, <code>babel-runtime-corejs3</code>, <code>babel-runtime</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15405" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15405/hovercard">#15405</a> Implement decorators as presented at <code>2023-01</code> TC39 meeting (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> <li><code>babel-parser</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15114" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15114/hovercard">#15114</a> Parser option to allow <code>new.target</code> outside functions (<a href="https://snyk.io/redirect/github/overlookmotel">@ overlookmotel</a>)</li> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15320" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15320/hovercard">#15320</a> Add <code>annexb: false</code> parser option to disable Annex B (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> <li><code>babel-core</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15283" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15283/hovercard">#15283</a> feat: Support <code>.cts</code> as configuration file (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-generator</code>, <code>babel-parser</code>, <code>babel-plugin-transform-typescript</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15381" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15381/hovercard">#15381</a> [ts] Support <code>export type * from</code> (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="bug" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f41b.png">🐛</g-emoji> Bug Fix</h4> <ul> <li><code>babel-plugin-transform-typescript</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15379" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15379/hovercard">#15379</a> [ts5.0] Better inlining of constants in enums (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-core</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15366" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15366/hovercard">#15366</a> handling circular/shared structures in deep-clone (<a href="https://snyk.io/redirect/github/azizghuloum">@ azizghuloum</a>)</li> </ul> </li> <li><code>babel-helper-create-class-features-plugin</code>, <code>babel-plugin-proposal-class-properties</code>, 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<h4><g-emoji class="g-emoji" alias="nail_care" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f485.png">💅</g-emoji> Polish</h4> <ul> <li><code>babel-parser</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15400" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15400/hovercard">#15400</a> polish: improve "<code>await</code> as identifier" error in modules (<a href="https://snyk.io/redirect/github/JLHwung">@ JLHwung</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="house" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f3e0.png">🏠</g-emoji> Internal</h4> <ul> <li><code>babel-core</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15137" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15137/hovercard">#15137</a> Improve CJS compat with ESM-based <code>@ babel/core</code> (<a 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<li>Frank Wienberg (<a href="https://snyk.io/redirect/github/fwienber">@ fwienber</a>)</li> <li>Huáng Jùnliàng (<a href="https://snyk.io/redirect/github/JLHwung">@ JLHwung</a>)</li> <li>Mateusz Burzyński (<a href="https://snyk.io/redirect/github/Andarist">@ Andarist</a>)</li> <li>Nicolò Ribaudo (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> <li><a href="https://snyk.io/redirect/github/Lioness100">@ Lioness100</a></li> <li><a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a></li> <li><a href="https://snyk.io/redirect/github/overlookmotel">@ overlookmotel</a></li> <li>fisker Cheung (<a href="https://snyk.io/redirect/github/fisker">@ fisker</a>)</li> </ul> </li> <li> <b>7.20.12</b> - <a href="https://snyk.io/redirect/github/babel/babel/releases/tag/v7.20.12">2023-01-04</a></br><h2>v7.20.12 (2023-01-04)</h2> <p>Thanks <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/cross19xx/hovercard" 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<p>This PR was automatically created by Snyk using the credentials of a real user.</p><br /><h3>Snyk has created this PR to upgrade @babel/core from 7.21.0 to 7.21.3.</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 **1 version** ahead of your current version. - The recommended version was released **22 days ago**, on 2023-03-14. <details> <summary><b>Release notes</b></summary> <br/> <details> <summary>Package name: <b>@babel/core</b></summary> <ul> <li> <b>7.21.3</b> - <a href="https://snyk.io/redirect/github/babel/babel/releases/tag/v7.21.3">2023-03-14</a></br><h2>v7.21.3 (2023-03-14)</h2> <p>Thanks <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/amoeller/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://snyk.io/redirect/github/amoeller">@ amoeller</a>, <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/Harpica/hovercard" data-octo-click="hovercard-link-click" 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fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f41b.png">🐛</g-emoji> Bug Fix</h4> <ul> <li><code>babel-parser</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15423" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15423/hovercard">#15423</a> [ts] Allow keywords in tuple labels (<a href="https://snyk.io/redirect/github/Harpica">@ Harpica</a>)</li> </ul> </li> <li><code>babel-plugin-transform-typescript</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15489" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15489/hovercard">#15489</a> Register <code>var</code> decls generated by <code>import ... =</code> TS transform (<a href="https://snyk.io/redirect/github/amoeller">@ amoeller</a>)</li> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15494" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15494/hovercard">#15494</a> fix: Consider <code>export { type foo }</code> as type-only usage (<a href="https://snyk.io/redirect/github/magic-akari">@ magic-akari</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="nail_care" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f485.png">💅</g-emoji> Polish</h4> <ul> <li><code>babel-traverse</code>, <code>babel-types</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15484" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15484/hovercard">#15484</a> Skip node deprecation warnings when used by an old <code>@ babel</code> package (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> <li><code>babel-generator</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15480" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15480/hovercard">#15480</a> chore: Improve <code>jsonCompatibleStrings</code> deprecation (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="house" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f3e0.png">🏠</g-emoji> Internal</h4> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15465" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15465/hovercard">#15465</a> Add ESLint-readable package name (<a href="https://snyk.io/redirect/github/nzakas">@ nzakas</a>)</li> </ul> <h4><g-emoji class="g-emoji" alias="microscope" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f52c.png">🔬</g-emoji> Output optimization</h4> <ul> <li><code>babel-plugin-transform-typescript</code>, <code>babel-preset-typescript</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15467" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15467/hovercard">#15467</a> Optimize TS enums output (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> </ul> <h4>Committers: 8</h4> <ul> <li>Alexandra Kadykova (<a href="https://snyk.io/redirect/github/Harpica">@ Harpica</a>)</li> <li>Anders Møller (<a href="https://snyk.io/redirect/github/amoeller">@ amoeller</a>)</li> <li>Babel Bot (<a href="https://snyk.io/redirect/github/babel-bot">@ babel-bot</a>)</li> <li>Huáng Jùnliàng (<a href="https://snyk.io/redirect/github/JLHwung">@ JLHwung</a>)</li> <li>Nicholas C. Zakas (<a href="https://snyk.io/redirect/github/nzakas">@ nzakas</a>)</li> <li>Nicolò Ribaudo (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> <li><a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a></li> <li>magic-akari (<a href="https://snyk.io/redirect/github/magic-akari">@ magic-akari</a>)</li> </ul> </li> <li> <b>7.21.0</b> - <a href="https://snyk.io/redirect/github/babel/babel/releases/tag/v7.21.0">2023-02-20</a></br><h2>v7.21.0 (2023-02-20)</h2> <p>Thanks <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/azizghuloum/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://snyk.io/redirect/github/azizghuloum">@ azizghuloum</a>, <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/ehoogeveen-medweb/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://snyk.io/redirect/github/ehoogeveen-medweb">@ ehoogeveen-medweb</a>, <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/fwienber/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://snyk.io/redirect/github/fwienber">@ fwienber</a>, and <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/Lioness100/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://snyk.io/redirect/github/Lioness100">@ Lioness100</a> for your first PRs!</p> <h4><g-emoji class="g-emoji" alias="rocket" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f680.png">🚀</g-emoji> New Feature</h4> <ul> <li><code>babel-core</code>, <code>babel-helper-create-class-features-plugin</code>, <code>babel-plugin-proposal-class-properties</code>, <code>babel-plugin-proposal-private-methods</code>, <code>babel-plugin-proposal-private-property-in-object</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15435" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15435/hovercard">#15435</a> feat: Implement <code>privateFieldsAsSymbols</code> assumption for classes (<a href="https://snyk.io/redirect/github/fwienber">@ fwienber</a>)</li> </ul> </li> <li><code>babel-helper-create-regexp-features-plugin</code>, <code>babel-plugin-proposal-regexp-modifiers</code>, <code>babel-standalone</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15226" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15226/hovercard">#15226</a> feat: Support regexp modifiers proposal (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-cli</code>, <code>babel-core</code>, <code>babel-generator</code>, <code>babel-plugin-transform-destructuring</code>, <code>babel-plugin-transform-modules-commonjs</code>, <code>babel-plugin-transform-react-jsx</code>, <code>babel-traverse</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15022" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15022/hovercard">#15022</a> feat: Generate sourcemaps of friendly call frames (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-parser</code>, <code>babel-types</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15384" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15384/hovercard">#15384</a> [ts] Support <code>const</code> modifier in type parameters (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> <li><code>babel-generator</code>, <code>babel-helpers</code>, <code>babel-parser</code>, <code>babel-plugin-proposal-decorators</code>, <code>babel-plugin-syntax-decorators</code>, <code>babel-runtime-corejs2</code>, <code>babel-runtime-corejs3</code>, <code>babel-runtime</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15405" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15405/hovercard">#15405</a> Implement decorators as presented at <code>2023-01</code> TC39 meeting (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> <li><code>babel-parser</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15114" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15114/hovercard">#15114</a> Parser option to allow <code>new.target</code> outside functions (<a href="https://snyk.io/redirect/github/overlookmotel">@ overlookmotel</a>)</li> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15320" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15320/hovercard">#15320</a> Add <code>annexb: false</code> parser option to disable Annex B (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> <li><code>babel-core</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15283" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15283/hovercard">#15283</a> feat: Support <code>.cts</code> as configuration file (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-generator</code>, <code>babel-parser</code>, <code>babel-plugin-transform-typescript</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15381" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15381/hovercard">#15381</a> [ts] Support <code>export type * from</code> (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="bug" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f41b.png">🐛</g-emoji> Bug Fix</h4> <ul> <li><code>babel-plugin-transform-typescript</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15379" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15379/hovercard">#15379</a> [ts5.0] Better inlining of constants in enums (<a href="https://snyk.io/redirect/github/liuxingbaoyu">@ liuxingbaoyu</a>)</li> </ul> </li> <li><code>babel-core</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15366" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15366/hovercard">#15366</a> handling circular/shared structures in deep-clone (<a href="https://snyk.io/redirect/github/azizghuloum">@ azizghuloum</a>)</li> </ul> </li> <li><code>babel-helper-create-class-features-plugin</code>, <code>babel-plugin-proposal-class-properties</code>, <code>babel-plugin-proposal-class-static-block</code>, <code>babel-plugin-proposal-private-methods</code>, <code>babel-plugin-transform-classes</code>, <code>babel-plugin-transform-new-target</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15406" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15406/hovercard">#15406</a> Preserve class elements comments in class transform (<a href="https://snyk.io/redirect/github/JLHwung">@ JLHwung</a>)</li> </ul> </li> <li><code>babel-parser</code>, <code>babel-plugin-transform-flow-comments</code>, <code>babel-plugin-transform-flow-strip-types</code>, <code>babel-types</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15414" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15414/hovercard">#15414</a> [ts] Fix restrictions for optional parameters (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="nail_care" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f485.png">💅</g-emoji> Polish</h4> <ul> <li><code>babel-parser</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15400" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15400/hovercard">#15400</a> polish: improve "<code>await</code> as identifier" error in modules (<a href="https://snyk.io/redirect/github/JLHwung">@ JLHwung</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="house" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f3e0.png">🏠</g-emoji> Internal</h4> <ul> <li><code>babel-core</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15137" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15137/hovercard">#15137</a> Improve CJS compat with ESM-based <code>@ babel/core</code> (<a href="https://snyk.io/redirect/github/nicolo-ribaudo">@ nicolo-ribaudo</a>)</li> </ul> </li> </ul> <h4><g-emoji class="g-emoji" alias="microscope" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f52c.png">🔬</g-emoji> Output optimization</h4> <ul> <li><code>babel-plugin-transform-typescript</code> <ul> <li><a href="https://snyk.io/redirect/github/babel/babel/pull/15418" data-hovercard-type="pull_request" data-hovercard-url="/babel/babel/pull/15418/hovercard">#15418</a> [ts] Handle exponentiation operator in constant folding (<a href="https://snyk.io/redirect/github/ehoogeveen-medweb">@ ehoogeveen-medweb</a>)</li> </ul> </li> </ul> <h4>Committers: 11</h4> <ul> <li>Abdulaziz Ghuloum (<a href="https://snyk.io/redirect/github/azizghuloum">@ azizghuloum</a>)</li> <li>Babel Bot (<a href="https://snyk.io/redirect/github/babel-bot">@ babel-bot</a>)</li> <li>Emanuel Hoogeveen (<a href="https://snyk.io/redirect/github/ehoogeveen-medweb">@ ehoogeveen-medweb</a>)</li> 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(snyk:metadata:{"prId":"8d5d5016-3df4-4a7d-8a0d-f0f2d52188a8","prPublicId":"8d5d5016-3df4-4a7d-8a0d-f0f2d52188a8","dependencies":[{"name":"@babel/core","from":"7.21.0","to":"7.21.3"}],"packageManager":"npm","type":"auto","projectUrl":"https://app.snyk.io/org/scudette/project/76f4d127-566b-42ef-86f4-bdcbc92b90b4?utm_source=github&utm_medium=referral&page=upgrade-pr","projectPublicId":"76f4d127-566b-42ef-86f4-bdcbc92b90b4","env":"prod","prType":"upgrade","vulns":[],"issuesToFix":[],"upgrade":[],"upgradeInfo":{"versionsDiff":1,"publishedDate":"2023-03-14T14:59:44.759Z"},"templateVariants":[],"hasFixes":false,"isMajorUpgrade":false,"isBreakingChange":false,"priorityScoreList":[]}) ---> Co-authored-by: snyk-bot <[email protected]>
This PR adds a parser option to disable parsing of Annex B features. Annex B syntax is not portable and developers are discouraged from using it. Additionally, some valid JS code becomes invalid when Annex B is enabled (
if(a<!--b) {}
).It's a parser option and not a plugin because plugins are opt-in, while we currently parse Annex B by default so this can only be opt-out. I would like to make it a plugin in Babel 8.
Note that
@babel/parser
doesn't validate regex syntax, so this PR does not affect the various Annex B regex extensions.