@babel/runtime-corejs2 7.14.0

on Node.js NPM

v7.14.0 (2021-04-29)

👓 Spec Compliance

• babel-generator, babel-parser
  • #13209 [ts] Enforce order for the override modifier (@nicolo-ribaudo)

🚀 New Feature

• babel-plugin-proposal-async-do-expressions
  • #13117 Implement async-do-expressions transform (@JLHwung)
• babel-core, babel-generator, babel-parser, babel-plugin-proposal-do-expressions, babel-plugin-syntax-async-do-expressions, babel-types
  • #13043 Parse async do expressions (@JLHwung)
• babel-preset-env
  • #13091 Enable class fields & private methods by default (@nicolo-ribaudo)
• babel-compat-data, babel-preset-env
  • #13176 Add private brand checks to shippedProposals (@nicolo-ribaudo)
  • #13114 Add class static blocks to preset-env's shippedProposals (@nicolo-ribaudo)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-private-property-in-object, babel-plugin-syntax-private-property-in-object
  • #13172 Allow compiling #foo in obj without compiling private fields (@nicolo-ribaudo)
• babel-parser
  • #13113 babel-parser(ts): Add new plugin option dts: boolean (@sosukesuzuki)
  • #13175 Materialize the class features in @babel/parser. (@JLHwung)
  • #13033 Introduce parser error codes (@sosukesuzuki)
• babel-helper-module-transforms, babel-helpers, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd
  • #12838 Implement importInterop: "node" option for module transforms (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-traverse, babel-types
  • #13224 Support parsing Flow's Optional Indexed Access Types (@gkz)
  • #13053 Support parsing Flow's Indexed Access Types (@sosukesuzuki)
• babel-parser, babel-traverse
  • #13195 Parse string export names by default (moduleStringNames) (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-types
  • #13089 Support TypeScript 4.3 get/set type members (@sosukesuzuki)
  • #13097 support TS 4.3 override syntax in class (@g-plane)
  • #13096 support TS 4.3 static index signature in class (@g-plane)

🐛 Bug Fix

• babel-generator
  • #13208 Prevent ForOfStatement from printing the forbidden sequence "for ( async of" (@Zalathar)
  • #13169 fix: don't deduplicate comments with same start index (@gzzhanghao)
• babel-generator, babel-plugin-proposal-object-rest-spread, babel-preset-env
  • #13204 Simplify the special-case printing of single-param arrow functions (@Zalathar)
• babel-core
  • #13182 fix: Don't load browserslist in block-hoist-plugin (@MichaReiser)

💅 Polish

• babel-cli, babel-core, babel-parser, babel-plugin-transform-classes, babel-preset-env, babel-preset-typescript
  • #13130 babel-parser: Add new internal ESLint rule to consistent error messages (@sosukesuzuki)

🏠 Internal

• babel-parser
  • #13227 Add runFixtureTestsWithoutExactASTMatch in parser test runner (@JLHwung)
  • #13163 babel-parser: Use this.isThisParam (@sosukesuzuki)
  • #13200 refactor: avoid parsing logic on locations (@JLHwung)
• babel-helpers, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #13190 Allow putting helpers in individual files (@nicolo-ribaudo)
• Other
  • #13183 chore: run coverage-test against node 16 (@JLHwung)

🏃‍♀️ Performance

• babel-core
  • #13090 perf(core): check files before interacting with them (@FauxFaux)
  • #13223 perf: avoid loadFullConfig when creating block hoist plugin (@JLHwung)
• babel-helper-validator-identifier
  • #13211 Improve isIdentifierName performance (@JLHwung)

🔬 Output optimization

• babel-helper-create-class-features-plugin, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-class-static-block, babel-plugin-proposal-private-methods, babel-plugin-proposal-private-property-in-object, babel-preset-env
  • #13194 Mark WeakMaps of private fields as pure (@nicolo-ribaudo)
• babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #13201 Simplify the wrapRegExp helper for named groups (@nicolo-ribaudo)

Committers: 11

• Babel Bot (@babel-bot)
• Chris West (@FauxFaux)
• George Zahariev (@gkz)
• Huáng Jùnliàng (@JLHwung)
• Jason (@gzzhanghao)
• Micha Reiser (@MichaReiser)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Pig Fang (@g-plane)
• Simon Lydell (@lydell)
• Sosuke Suzuki (@sosukesuzuki)
• Stuart Cook (@Zalathar)