Open Radar

 
Summary:
Dear Xcoderinos,

This description will be best understood if viewed in a monospaced font and with line wrapping.

import Cocoa

class MyView: NSView {

    required init?(coder: NSCoder) {
        super.init(coder: coder)
        /*                ↑
         I should be able to use Edit All in Scope on this variable without changing the argument label in the method signature. I'm talking about the identifier `coder` *after* the colon.

         Say I use Edit All In Scope on it and change it to `decoder`. Then Xcode changes the method signature to

             required init?(decoder: NSCoder)

         That no longer overrides the superclass's method (or, if you prefer, fulfills the superclass's init requirement).

         Xcode should recognize that `coder` is (before the rename) both the argument label and the parameter name. Edit All in Scope should therefore split the two apart, inserting the new name as a separate parameter name while preserving the original argument label, producing

             required init?(coder decoder: NSCoder)
         */
    }

}

Love,
Rob


Steps to Reproduce:
 

Expected Results:
 

Actual Results:
 

Version:
Version 9.0 beta (9M136h) / 10.13 Beta (17A264c)

Notes: