Does not work when currency object is implicitly returned from another module / file

[tennox]

When I define a class with a method that returns a currency object, this plugin doesn't know it's a currency object, as I don't explicitly create it in the same file.

I understand that this is hard to impossible to do in duck-typed Javascript, but it would be great to warn about this in the Readme!

[scurker]

I'm not sure I follow. Do you have an example of what you're trying to do?

[tennox]

product.js

export class Product {
  getPrice() {
    return currency(123.4)
  }
}

something.js

const totalPrice = product.getPrice() * productAmount

[scurker]

Ah yes, that makes sense. The transforms work with the expectation that the export is a currency object.

The easiest workaround here I could think of would be to include the quantity as part of the class:

export class Product {
  setQuantity(quantity) {
    this.quantity = quantity
  }
  getTotal() { 
    return currency(this.price) * this.total
  }
}

Right now, this babel transform looks just at variable assignment, but it's possible that method or function exports could be added as well.