provide 'magic comments' to preserve classnames/function names

[devdoomari3]

Feature request: magic-comments to keep classnames/function names.
eg).

// UGLIFYJS:KEEP_FUNCTION_NAME
class User extends Typegoose {
  ...
}

Why: I had problems with Webpack's uglifyjs mangling class names, when some libraries depended on constructor.name property to work.

specifically, when using Typegoose:

class User extends Typegoose { // 'User' becomes aqw, so it's stored as 'aqw' on mongodb
   // ..

related: webpack/webpack#1659 (comment)

[kzc]

• keep_classnames (default: undefined) - pass true to prevent discarding or mangling
  of class names.

• keep_fnames (default: false) - pass true to prevent discarding or mangling
  of function names. Useful for code relying on Function.prototype.name. If the
  top level minify option keep_classnames is undefined it will be overridden with
  the value of the top level minify option keep_fnames.

[devdoomari3]

@kzc but that means I have to edit the webpack build config, which is impossible for Create-React-App

Moreover, I don't want ALL the class names to be kept - only a few.

[kzc]

https://www.youtube.com/watch?v=oqMl5CRoFdk

[devdoomari3]

@kzc I like how you searched for such an apt song 👍

but...

please...?

[llehn]

Having such an option would be absolutely awesome.