Open Radar

 
Summary:
When mixing @IBInspectable and @objc on a single property, order appears to matter in whether the inspectable UI will appear in IB.

Steps to Reproduce:
1. Create a Swift iOS single-view app from the Xcode template.
2. Add the following snippet (ugly wrapping for Radar purposes only):

extension UILabel {

    @IBInspectable
    @objc(myPropertyObjC)
    public var
    myProperty: String {
        get {
            return "foo"
        }
        set {
            
        }
    }
}

3. Open Main.storyboard in the storyboard editor, a.k.a. “IB”.
4. Drag out a UILabel to the storyboard.
5. Look for the myProperty inspectable interface at the top of the Attributes Inspector.

Expected Results:
An editor for “My Property” will appear at the top of the Attributes Inspector.

Actual Results:
No such editor appears.

Regression:
Unknown, but reproducible in Xcode 8.0 and 8.1b2.

Notes:
To make the editor UI appear in IB, swap the @IBInspectable line with the @objc line:

    @objc(myPropertyObjC)
    @IBInspectable
    public var
    myProperty: String {

Now the “My Property” editor will show up in IB.

Example project also uploaded here: https://cl.ly/hhmF