[SR-8440] Using self inside a let initializer

[swift-ci]

Previous ID	SR-8440
Radar	None
Original Reporter	kanersan (JIRA User)
Type	Bug
Status	Resolved
Resolution	Duplicate

Environment

Xcode 9.4.1 - Swift 4.1

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug
Assignee	None
Priority	Medium

md5: e2dca743fabfb653f26fcddaaaf02779

duplicates:

• [SR-4559] Method called 'self' can be confused with regular 'self' #47136

Issue Description:

Using self inside an initializer causes compiler error, which makes sense.

However, trying to use self to hookup a touchUpInside action on a UIKit object (for example UIButton) which is a let computed property doesn't cause compiler errors.

Below code is what I mean:

let someButton: UIButton = {
    let button = UIButton()
    button.addTarget(self, action: #selector(buttonTappedFunction), for: .touchUpInside)
}()

And the action doesn't work but the code compiles and runs.