Babel: v7.9.0 Release

v7.9.0 (2020-03-20)

Thanks to @andrewdotn, @clshortfuse, @lunaruan, @oliverdunk, @rickbutton, @Taym95 and @Wetinee for their first PRs!

Blog post: https://babeljs.io/blog/2020/03/16/7.9.0

:rocket: New Feature

• babel-generator, babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-plugin-transform-regenerator, babel-preset-react, babel-preset-typescript, babel-standalone
  • #11126 Mark transpiled JSX elements as pure (@nicolo-ribaudo)
• babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx, babel-preset-react, babel-standalone
  • #11154 Add experimental version of the babel-plugin-transform-react-jsx transform (@lunaruan)
• babel-compat-data, babel-preset-env
  • #11083 Include preset modules (@nicolo-ribaudo)
  • #10971 Add numeric separator to shippedProposals (@Wetinee)
• babel-core, babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-parameters, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
  • #8656 Allow extending untranspiled classes (@nicolo-ribaudo)
• babel-core, babel-helper-module-transforms, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd
  • #11194 Allow defining the moduleIds-related option in the transform plugins (@nicolo-ribaudo)
• babel-core, babel-generator, babel-parser, babel-plugin-syntax-record-and-tuple, babel-types
  • #10865 Added support for record and tuple syntax. (@rickbutton)
• babel-generator, babel-parser, babel-plugin-transform-flow-strip-types, babel-preset-flow
  • #11178 Implement support for declare on class fields with Flow (@nicolo-ribaudo)
• babel-types
  • #10680 Add cloneDeepWithoutLoc (@Taym95)
• babel-generator
  • #11028 Added jsescOptions to Numeric Literals (@sidntrivedi012)
• babel-generator, babel-parser, babel-types
  • #11077 Add support for flow's SymbolTypeAnnotation (@existentialism)
• babel-parser
  • #11117 Parse BigInts by default (@nicolo-ribaudo)
  • #11254 Add estree parsing support for export * as A (@existentialism)
  • #11246 feat: align ID_Start/ID_Continue regex to Unicode 13.0.0 (@JLHwung)
• babel-plugin-transform-react-jsx-source, babel-preset-react
  • #11139 feat(react-jsx-source): add columnNumber property (@motiz88)
• babel-generator, babel-parser, babel-plugin-transform-typescript, babel-preset-typescript, babel-types
  • #11171 Add import type and export type support to TypeScript (@nicolo-ribaudo)

:bug: Bug Fix

• babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-helper-validator-identifier, babel-highlight, babel-parser, babel-types
  • #11289 Add @babel/helper-validator-identifier (@JLHwung)
• babel-plugin-proposal-optional-chaining
  • #11261 Memoize call expressions in optional chains in loose mode (@oliverdunk)
• babel-plugin-transform-react-jsx-self, babel-preset-react
  • #11290 Pass the correct this to JSX's __self with the old plugin (@nicolo-ribaudo)
• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx
  • #11288 Use the correct this in __self for JSX elements in arrows (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #11280 Move object-rest-spread after transform-parameters (@JLHwung)
• babel-helpers, babel-plugin-transform-for-of, babel-preset-env
  • #11285 Allow for-of on polyfilled or builtin iterables without Symbol support (@nicolo-ribaudo)
  • #11263 Add for-of fallback for arrays in browsers without symbol support (@nicolo-ribaudo)
• babel-plugin-proposal-object-rest-spread
  • #11282 fix: object-rest-spread should not transform export array rest (@JLHwung)
• babel-register
  • #11249 Add path separator to @babel/register sourceRoot (@andrewdotn)
• babel-core, babel-helpers, babel-plugin-transform-runtime
  • #10575 Create File class for babel helpers (@JLHwung)
• babel-helpers, babel-plugin-transform-modules-commonjs, babel-preset-env, babel-runtime-corejs2, babel-runtime
  • #11268 Allow rest/spread on polyfilled or builtin iterables without Symbol support (@nicolo-ribaudo)
• babel-parser
  • #11148 Allow await when it is not in AsyncArrowHead (@arku)
• babel-helpers, babel-plugin-proposal-object-rest-spread, babel-runtime-corejs2, babel-runtime
  • #9794 fix(rest-spread): Do not require Symbol.iterator for strings (@clshortfuse)
• babel-generator
  • #11255 Fix printing edge cases in Nullish Coalescing and Optional Chaining (@jridgewell)

:nail_care: Polish

• babel-parser
  • #11208 Rephrase parser error message (@JLHwung)
• babel-helpers, babel-plugin-transform-destructuring, babel-plugin-transform-modules-commonjs, babel-plugin-transform-spread, babel-preset-env, babel-runtime-corejs2, babel-runtime
  • #11264 Throw better errors for non-iterables when Symbol doesn't exist. (@nicolo-ribaudo)

:house: Internal

• babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-helper-validator-identifier, babel-highlight, babel-parser, babel-types
  • #11289 Add @babel/helper-validator-identifier (@JLHwung)
• babel-compat-data, babel-preset-env
  • #11277 Update compat-data (@existentialism)
• babel-core
  • #11276 chore: bump json5 and minimist (@JLHwung)
• babel-types
  • #11250 Add stricter Optional Chain node validation (@jridgewell)
  • #11267 Update Purish aliases (@jridgewell)
• babel-helpers, babel-plugin-transform-block-scoping, babel-plugin-transform-for-of, babel-plugin-transform-parameters, babel-plugin-transform-runtime, babel-preset-env
  • #11262 Extract for-of iterator handling to a helper (@nicolo-ribaudo)
• babel-core, babel-plugin-proposal-decorators, babel-plugin-proposal-logical-assignment-operators, babel-plugin-proposal-object-rest-spread, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-parameters, babel-traverse
  • #11260 Support more node types in generateUidBasedOnNode (@jridgewell)
• Other
  • #11259 Remove unused gulp-rename (@existentialism)

Committers: 15

• Andrew Neitsch (@andrewdotn)
• Arun Kumar Mohan (@arku)
• Brian Ng (@existentialism)
• Carlos Lopez (@clshortfuse)
• Guy Bedford (@guybedford)
• Huáng Jùnliàng (@JLHwung)
• Justin Ridgewell (@jridgewell)
• Luna Ruan (@lunaruan)
• Moti Zilberman (@motiz88)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Oliver Dunk (@oliverdunk)
• Rick Button (@rickbutton)
• Siddhant N Trivedi (@sidntrivedi012)
• Taym Haddadi (@Taym95)
• Ye Wei (@Wetinee)