Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Use function rather than var to compile private methods #12990

Merged
merged 3 commits into from Mar 11, 2021

Conversation

nicolo-ribaudo
Copy link
Member

Q                       A
Fixed Issues? /
Patch: Bug Fix?
Major: Breaking Change?
Minor: New Feature?
Tests Added + Pass? Yes
Documentation PR Link
Any Dependency Changes?
License MIT

I was working on a prototype for #12849 (comment), and I noticed this small output optimization that lets us save a few bytes for each private method.

@nicolo-ribaudo nicolo-ribaudo added Spec: Private Methods PR: Output optimization 🔬 A type of pull request used for our changelog categories labels Mar 10, 2021

}));

function _foo2() {}
Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

The output on main is

var _foo, _temp, _foo2;

console.log((_temp = (_foo = new WeakSet(), class A {
  constructor() {
    _foo.add(this);
  }

  method() {
    babelHelpers.classPrivateMethodGet(this, _foo, _foo2).call(this);
  }

}), _foo2 = function _foo2() {}, _temp));

@babel-bot
Copy link
Collaborator

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/44199/

@codesandbox-ci
Copy link

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 3a244cf:

Sandbox Source
babel-repl-custom-plugin Configuration
babel-plugin-multi-config Configuration

@nicolo-ribaudo nicolo-ribaudo merged commit 8ad6b75 into babel:main Mar 11, 2021
@nicolo-ribaudo nicolo-ribaudo deleted the private-methods-fn-decl branch March 11, 2021 01:08
This was referenced Mar 15, 2021
This was referenced Mar 16, 2021
@github-actions github-actions bot added the outdated A closed issue/PR that is archived due to age. Recommended to make a new issue label Jun 10, 2021
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Jun 10, 2021
Sign up for free to subscribe to this conversation on GitHub. Already have an account? Sign in.
Labels
outdated A closed issue/PR that is archived due to age. Recommended to make a new issue PR: Output optimization 🔬 A type of pull request used for our changelog categories Spec: Private Methods
Projects
None yet
Development

Successfully merging this pull request may close these issues.

None yet

4 participants