v7.19.6

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👓 Spec Compliance

• babel-plugin-proposal-decorators
  • #​15059 Ensure non-static decorators are applied when a class is instantiated. (@​JLHwung)

🐛 Bug Fix

• babel-parser
  • #​15062 Fix parsing of block comments nested in flow comments (@​nicolo-ribaudo)
  • #​15052 fix: improve module block program location tracking (@​JLHwung)
• babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime-corejs3
  • #​15060 Ensure @babel/runtime-corejs3/core-js/*.js can be imported on Node.js 17+ (@​JLHwung)
• babel-preset-env, babel-traverse
  • #​15043 fix: preserve this for super.* template tags (@​liuxingbaoyu)

💅 Polish

• babel-generator, babel-plugin-transform-flow-comments
  • #​15037 Improve generation of comments without location (@​liuxingbaoyu)

📝 Documentation

• babel-standalone
  • #​15055 Fix missing transformSync function name (@​lomirus)

🏠 Internal

• babel-parser
  • #​15056 Use startLoc.index instead of carrying around start (@​nicolo-ribaudo)
• Other
  • #​15035 chore: Update yarn 3.2.4 (@​liuxingbaoyu)

🏃‍♀️ Performance

• babel-core, babel-standalone
  • #​15023 Don't bundle unnecessary plugins in @babel/standalone (@​nicolo-ribaudo)

v0.15.12

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• Fix minifier correctness bug with single-use substitutions (#​2619)

  When minification is enabled, esbuild will attempt to eliminate variables that are only used once in certain cases. For example, esbuild minifies this code:

  function getEmailForUser(name) {
    let users = db.table('users');
    let user = users.find({ name });
    let email = user?.get('email');
    return email;
  }

  into this code:

  function getEmailForUser(e){return db.table("users").find({name:e})?.get("email")}

  However, this transformation had a bug where esbuild did not correctly consider the "read" part of binary read-modify-write assignment operators. For example, it's incorrect to minify the following code into bar += fn() because the call to fn() might modify bar:

  const foo = fn();
  bar += foo;

  In addition to fixing this correctness bug, this release also improves esbuild's output in the case where all values being skipped over are primitives:

  function toneMapLuminance(r, g, b) {
    let hdr = luminance(r, g, b)
    let decay = 1 / (1 + hdr)
    return 1 - decay
  }

  Previous releases of esbuild didn't substitute these single-use variables here, but esbuild will now minify this to the following code starting with this release:

  function toneMapLuminance(e,n,a){return 1-1/(1+luminance(e,n,a))}

v7.13.6

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Patch Changes

• Downgrade @pnpm/npm-conf to remove annoying builtin warning #​5518.
• pnpm link --global <pkg> should not change the type of the dependency #​5478.
• When the pnpm outdated command fails, print in which directory it failed.

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