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Static class fields break with legacy decorators #9835

pzuraq opened this Issue Apr 8, 2019 · 1 comment


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commented Apr 8, 2019

Bug Report

Current Behavior
Transpiled code ends up referencing the class definition directly before the class binding has been fully assigned/defined.

Input Code

  • REPL or Repo link if applicable: here
export default class I18n {
  @service router;
  static US_ENGLISH_LANGUAGE = 'en';

Expected behavior/code

  • Class should be initialized without an error
  • I18n.US_ENGLISH_LANGUAGE === 'en';
  • I18n.US_ENGLISH_LOCALE === 'en-US';

Babel Configuration (.babelrc, package.json, cli command)

See the REPL example


  • Babel version(s): v7.0.0
  • Node/npm version: Node 8/npm 5
  • OS: OSX 10.13.4
  • Monorepo: no
  • How you are using Babel: ember-cli

Possible Solution
Initialize the class, then decorate?

Additional context/Screenshots


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commented Apr 8, 2019

Hey @pzuraq! We really appreciate you taking the time to report an issue. The collaborators
on this project attempt to help as many people as possible, but we're a limited number of volunteers,
so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack
that typically always has someone willing to help. You can sign-up here
for an invite.

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