@babel/generator

Thanks @jordan-choi and @mmmsssttt404 for your first PRs!

This release includes a fix for github.com/babel/babel/security/advisories/GHSA…, a security vulnerability which affects the .replace method of transpiled regular expressions that use named capturing groups.

:eyeglasses: Spec Compliance

• babel-parser

  • Disallow decorator in array pattern (@JLHwung)

:bug: Bug Fix

• babel-parser, babel-template

  • Fix: always initialize ExportDeclaration attributes (@JLHwung)

• babel-core

  • fix: "Map maximum size exceeded" in deepClone (@liuxingbaoyu)

• babel-parser, babel-plugin-transform-typescript

  • Update typescript parser tests (@JLHwung)

• babel-traverse

  • fix: Should not evaluate vars in child scope (@liuxingbaoyu)

• babel-generator

  • fix: Correctly generate abstract override (@liuxingbaoyu)

• babel-parser

  • Fix source type detection when parsing TypeScript (@JLHwung)

• babel-helpers, babel-runtime, babel-runtime-corejs2, babel-runtime-corejs3

  • Fix processing of replacement pattern with named capture groups (@mmmsssttt404)

:nail_care: Polish

• babel-standalone

  • Avoid warnings when re-bundling @babel/standalone with webpack (@liuxingbaoyu)

:house: Internal

• babel-parser

  • Left-value parsing cleanup (@JLHwung)