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Error transpiling some Ember functions

Open josex2r opened this issue 7 years ago • 3 comments

Hi, I'm trying to use the new import syntax (@ember/package) but I think I found an issue when using some Ember functions (like Ember.warn).

For example, this piece of code...

import { warn } from '@ember/debug';

const a = () => warn('a');
const b = () => { warn('b') };
const c = () => { return warn('c') };
const d = function(){ warn('d') };
const e = function(){ return warn('e') };

Produces this after building the application:

var a = function a() {
  return warn('a');
};
var b = function b() {
  (true && Ember.warn('b'));
};
var c = function c() {
  return warn('c');
};
var d = function d() {
  (true && Ember.warn('d'));
};
var e = function e() {
  return warn('e');
};

In the example, the functions b and d are correct but the a, c and e are not ok because it will throw a ReferenceError. For some reason, only the functions that returns something have the wrong code.

Don't know if this is the correct repo to publish this issue but I think it could be related with babel transformations.

I've tested it in my companies application, and an empty projects using v2.16.2 and v2.18.0.

josex2r avatar Jan 12 '18 09:01 josex2r

Thank you for the awesome bug report! I believe from your description that you are struggling with the issue reported in https://github.com/chadhietala/babel-plugin-debug-macros/issues/46. Would definitely love help fixing that one if you have time...

rwjblue avatar Jan 12 '18 14:01 rwjblue

Yes, that's the issue. Then you can close this one, I wasn't sure the repo where the problem is located. I'll try to find the problem and if I find something I'll post it. Thanks!

josex2r avatar Jan 15 '18 07:01 josex2r

related: https://github.com/emberjs/ember.js/issues/16139

GottZ avatar Jan 22 '18 00:01 GottZ