Babel: v7.8.4 Release

v7.8.4 (2020-01-30)

:warning: In Babel 7.8.0 we introduced the --copy-ignored option for @babel/cli, defaulting to false. However, previous versions behaved as if that option was present: for this reason, we changed its default value to true (when --copy-files is provided) and introduced a --no-copy-ignored option to disable it.

Thanks to @3cp, @BenoitZugmeyer, @pustovalov, @regiontog, and @vedantroy for their first PRs!

:eyeglasses: Spec Compliance

• babel-parser
  • #11031 fix: properly parse member expression after property initializer (@vedantroy)
  • #11017 Update coalesce precedence (@JLHwung)
  • #11009 fix: triple __proto__ in object patterns should be allowed (@JLHwung)
  • #10987 Duplicate __proto__ key should be allowed in object patterns (@JLHwung)

:bug: Bug Fix

• babel-cli
  • #11063 [@babel/cli] Copy ignored files by default (@nicolo-ribaudo)
• babel-compat-data
  • #11066 Fix core-js 2 builtin data for opera (@danez)
• babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-typeof-symbol, babel-preset-env
  • #11049 Avoid compiling the _typeof helper with itself (@nicolo-ribaudo)
• babel-traverse
  • #11011 Bug/missing references after crawl (@regiontog)
• babel-plugin-transform-parameters
  • #9714 Fix rest parameters indexing with TypeScript 'this parameter' (@BenoitZugmeyer)
• babel-plugin-transform-for-of
  • #11023 fix: for-of transform should skip for-await-of (@JLHwung)
• babel-generator
  • #11014 Fix parentheses removal in nullish-coalescing operation (@sidntrivedi012)
• babel-helper-compilation-targets
  • #11006 fix: supply '.' subpath for backward compatibility with node.js 13.0-13.1 (@JLHwung)

:nail_care: Polish

• babel-core
  • #10969 polish: throw human-friendly error when item-option pair is incorrectly unwrapped (@JLHwung)

:memo: Documentation

• babel-parser
  • #11015 add AST for the module attribute proposal (@xtuc)
• babel-preset-env
  • #11030 update compat-data related docs/config [skip ci] (@JLHwung)

:house: Internal

• babel-compat-data
  • #11039 Update compat table (@nicolo-ribaudo)
  • #11041 Delete duplicated file in @babel/compat-data (@nicolo-ribaudo)
  • #10814 chore: map mobile browser data to their desktop version (@JLHwung)
  • #11024 Check that generated compat-data is up to date on CI (@nicolo-ribaudo)
• babel-parser
  • #11032 refactor: simplify toAssignable routine (@JLHwung)
  • #11026 chore: use @babel/eslint-config-internal (@JLHwung)
• babel-compat-data, babel-preset-env
  • #11016 Re-generate preset-env fixtures (@nicolo-ribaudo)
• babel-compat-data, babel-node, babel-parser, babel-preset-env
  • #11025 Enable no-process-exit (@JLHwung)
• Other
  • #11021 chore: replace yarn-upgrade by bump-babel-dependencies in vuejs e2e tests (@JLHwung)
  • #11004 chore: test against @vue/babel-preset-app (@JLHwung)
• babel-core
  • #10995 Exclude import() tests from pubilsh build (@nicolo-ribaudo)

:running_woman: Performance

• babel-parser
  • #11029 fix(babel-parser): avoid state.clone() to clone the whole token store (@3cp)

Committers: 11

• Benoît Zugmeyer (@BenoitZugmeyer)
• Chunpeng Huo (@3cp)
• Daniel Tschinder (@danez)
• Erlend Tobiassen (@regiontog)
• Huáng Jùnliàng (@JLHwung)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Pavel Pustovalov (@pustovalov)
• Siddhant N Trivedi (@sidntrivedi012)
• Sven Sauleau (@xtuc)
• Tan Li Hau (@tanhauhau)
• Vedant Roy (@vedantroy)