[Bug]: @babel/plugin-proposal-decorators, auto-accessors affect other initializers

[rauschma]

💻

• Would you like to work on a fix?

How are you using Babel?

@babel/register or @babel/node

Input code

function init(_value, {name, addInitializer}) {
  addInitializer(function () {
    console.log(name, typeof this);
  });
}
class C {
  @init static accessor staticAcc;
  @init protoMethod() {}
}
console.log('=== Instantiation ===');
const inst = new C();

Configuration file name

babel.config.json

Configuration

{
  "plugins": [
    ["@babel/plugin-proposal-decorators", {"version": "2022-03"}]
  ]
}

Current and expected behavior

Actual output:

staticAcc function
protoMethod function
=== Instantiation ===

Expected output:

staticAcc function
=== Instantiation ===
protoMethod object

With the accessor commented out, the output is:

=== Instantiation ===
protoMethod object

Environment

  System:
    OS: macOS 12.6
  Binaries:
    Node: 18.10.0 - /usr/local/bin/node
    npm: 8.19.2 - /usr/local/bin/npm
  npmPackages:
    @babel/core: ^7.19.3 => 7.19.3 
    @babel/node: ^7.19.1 => 7.19.1 
    @babel/plugin-proposal-decorators: ^7.19.3 => 7.19.3 

Possible solution

No response

Additional context

• Repository with a reproduction: https://github.com/rauschma/babel-decorator-error
• Same problem: static class field (if I remove the keyword accessor).

[babel-bot]

Hey @rauschma! 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.

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[JLHwung]

@rauschma Thanks for the detailed report! It will be fixed in #15059.