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kotlinlang

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Depends how much you want to use this pattern, easiest way to reduce duplicated code is make this function work with input list of `Input`s

and of course extract `apply` block to a function:
```fun Input.setErrorOnEmpty(@StringRes errorRes: Int) {
   error = if (text.isNullOrEmpty()) {
      getString(errorRes)
   } else {
      null
   }
}```


```fun EditText.attachErrorMessage(message: Int) {
    error = if (this.text.isNullOrEmpty()) context.getString(message) else null
}```
I did smth similar ))

first part of function, before comapring new and old password just may be extracted to own function which doesn’t know about actual fields and you just pass list of them to validate

I like your naming of extension )) it tells more about the purpose of the ext