Dependency on @babel/runtime in esm versions

[vitalymind]

Discussed in #214

^{Originally posted by vitalymind July 11, 2022}
hi, I am trying to use three-nebula as es module. I assume that after installing npm package "..\node_modules\three-nebula\build\esm" folder should contain pre-built and ready to use library.

However I found following imports that likely should not be there, namely:

7 times import _defineProperty from "@babel/runtime/helpers/defineProperty"; in files:
\three-nebula\build\esm\core\fromJSONAsync.js
\three-nebula\build\esm\initializer\BodySprite.js
\three-nebula\build\esm\initializer\constants.js
\three-nebula\build\esm\initializer\Texture.js
\three-nebula\build\esm\renderer\GPURenderer\Desktop\index.js
\three-nebula\build\esm\renderer\GPURenderer\Mobile\index.js
\three-nebula\build\esm\utils\index.js

1 time import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties"; in file
\three-nebula\build\esm\initializer\Position.js

From what I understand built three-nebula should not depend on babel, babel used only for building three-nebula it self.
Just to make it clear, minified built version "three-nebula.js" works as expected, no dependency on babel

Can it be fixed?

[vitalymind]

In most cases there is a following portion of code in the top of file.

import _defineProperty from "@babel/runtime/helpers/defineProperty";

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

It looks like building does not happen correctly

[rohan-deshpande]

Hmm, thanks for reporting, I will look into this.

[NicolasNewman]

@rohan-deshpande Was the reason for this error ever discovered? I'm encountering the same issue.

[Raishav]

Hi, Was this resolved - or do we have a workaround for this?