CODEWITHSUNDEEP
swiftclassswift3
Mauro Bolis
Mauro Bolis

Reputation: 31

Crash on swift class init when using inline initializers

I'm developing an application and I encountered a crash that I can't explain.

The library is fairly complex so I prepared a minimum example

struct Info {
  static let test = 1
}

class SuperCls<A> {}

class Cls<A>: SuperCls<A> {
  let v: Info.Type = Info.self
}

let v = Cls<Int>()

This code crashes when I alloc the class, in the very last line, with the following error

file:///play.playground/: error: Playground execution aborted: error: Execution was interrupted, reason: EXC_BAD_ACCESS (code=1, address=0x4403).

I also tried this in an xcode project and the error is pretty much the same

I found a way to make this code works

struct Info {
  static let test = 1
}

class SuperCls<A> {}

class Cls<A>: SuperCls<A> {
  var v: Info.Type?

  override init() {
    v = Info.self
    super.init()
  }
}

let v = Cls<Int>()

Can someone tell me why this crash occurs? Thanks!

UPDATE

I also discovered that this works
struct Info {
  let test = 1
}

class SuperCls<A> {}

class Cls<A>: SuperCls<A> {
  let v = Info()
}

let v = Cls<Int>()

The problem seems to be related to the fact that I'm using Info as a type and accessing static information

Upvotes: 2

Views: 607

Answers (1)

Mauro Bolis
Mauro Bolis

Reputation: 31

Alright, it seems that it is a bug in Xcode beta 5

Thanks for the help

Upvotes: 1

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