Deinit method is never called

In the next code I'm trying to call the deinit method releasing all the references to the Person Class instance Mark but the deinit is never called. Why?

class Person{



    let name:String



    init(name:String){

        self.name = name

        println("Person created")

    }



    deinit {



        println("Person (name) deinit")

    }

}



var Mark:Person? = Person(name:"Mark")

Mark = nil // Shouldn't the person deinit method be called here? It doesn't.

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

deinit is Calling for the same code .

– Yatheesha B L
Jun 23 '14 at 10:30

Probably that's a playgrounds issue, I left playgrounds tests for more stable Xcode release. You can check the code good-old-way, deinit is properly called.

– A-Live
Jun 23 '14 at 10:31

Can not test ARC with playground !

– Forrest
Aug 4 '14 at 8:22

In XCode 10 deinit is called !

– touti
Jan 2 at 15:48

add a comment |

In the next code I'm trying to call the deinit method releasing all the references to the Person Class instance Mark but the deinit is never called. Why?

class Person{



    let name:String



    init(name:String){

        self.name = name

        println("Person created")

    }



    deinit {



        println("Person (name) deinit")

    }

}



var Mark:Person? = Person(name:"Mark")

Mark = nil // Shouldn't the person deinit method be called here? It doesn't.

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

deinit is Calling for the same code .

– Yatheesha B L
Jun 23 '14 at 10:30

Probably that's a playgrounds issue, I left playgrounds tests for more stable Xcode release. You can check the code good-old-way, deinit is properly called.

– A-Live
Jun 23 '14 at 10:31

Can not test ARC with playground !

– Forrest
Aug 4 '14 at 8:22

In XCode 10 deinit is called !

– touti
Jan 2 at 15:48

add a comment |

In the next code I'm trying to call the deinit method releasing all the references to the Person Class instance Mark but the deinit is never called. Why?

class Person{



    let name:String



    init(name:String){

        self.name = name

        println("Person created")

    }



    deinit {



        println("Person (name) deinit")

    }

}



var Mark:Person? = Person(name:"Mark")

Mark = nil // Shouldn't the person deinit method be called here? It doesn't.

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

In the next code I'm trying to call the deinit method releasing all the references to the Person Class instance Mark but the deinit is never called. Why?

class Person{



    let name:String



    init(name:String){

        self.name = name

        println("Person created")

    }



    deinit {



        println("Person (name) deinit")

    }

}



var Mark:Person? = Person(name:"Mark")

Mark = nil // Shouldn't the person deinit method be called here? It doesn't.

swift

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

asked Jun 23 '14 at 10:13

MatterGoal

6,2311680157

deinit is Calling for the same code .

– Yatheesha B L
Jun 23 '14 at 10:30

Probably that's a playgrounds issue, I left playgrounds tests for more stable Xcode release. You can check the code good-old-way, deinit is properly called.

– A-Live
Jun 23 '14 at 10:31

Can not test ARC with playground !

– Forrest
Aug 4 '14 at 8:22

In XCode 10 deinit is called !

– touti
Jan 2 at 15:48

add a comment |

deinit is Calling for the same code .

– Yatheesha B L
Jun 23 '14 at 10:30

Probably that's a playgrounds issue, I left playgrounds tests for more stable Xcode release. You can check the code good-old-way, deinit is properly called.

– A-Live
Jun 23 '14 at 10:31

Can not test ARC with playground !

– Forrest
Aug 4 '14 at 8:22

In XCode 10 deinit is called !

– touti
Jan 2 at 15:48

deinit is Calling for the same code .

– Yatheesha B L
Jun 23 '14 at 10:30

Probably that's a playgrounds issue, I left playgrounds tests for more stable Xcode release. You can check the code good-old-way, deinit is properly called.

– A-Live
Jun 23 '14 at 10:31

Can not test ARC with playground !

– Forrest
Aug 4 '14 at 8:22

In XCode 10 deinit is called !

– touti
Jan 2 at 15:48

add a comment |

2 Answers
2

active

oldest

votes

Xcode's Playgrounds for Swift don't work like regular apps; they aren't being run just once. The objects created stay in memory and can be inspected until you change the code, at which point the whole playground is reevaluated. When this happens, all previous results are discarded and while all object will be deallocated, you won't see any output from that.

Your code is correct, but Playgrounds is not suited to test things related to memory management.

Here's a related SO question: Memory leaks in the swift playground / deinit{} not called consistently

edited May 23 '17 at 12:02

Community♦

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

add a comment |

Deinit will called if create object like this

_ = Person(name:"Mark")

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

Your code is correct, but Playgrounds is not suited to test things related to memory management.

Here's a related SO question: Memory leaks in the swift playground / deinit{} not called consistently

edited May 23 '17 at 12:02

Community♦

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

add a comment |

Your code is correct, but Playgrounds is not suited to test things related to memory management.

Here's a related SO question: Memory leaks in the swift playground / deinit{} not called consistently

edited May 23 '17 at 12:02

Community♦

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

add a comment |

Your code is correct, but Playgrounds is not suited to test things related to memory management.

Here's a related SO question: Memory leaks in the swift playground / deinit{} not called consistently

edited May 23 '17 at 12:02

Community♦

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

Your code is correct, but Playgrounds is not suited to test things related to memory management.

Here's a related SO question: Memory leaks in the swift playground / deinit{} not called consistently

edited May 23 '17 at 12:02

Community♦

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

edited May 23 '17 at 12:02

Community♦

edited May 23 '17 at 12:02

Community♦

edited May 23 '17 at 12:02

Community♦

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

answered Jun 23 '14 at 10:32

Andreas Ley

8,08813453

add a comment |

Deinit will called if create object like this

_ = Person(name:"Mark")

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

add a comment |

Deinit will called if create object like this

_ = Person(name:"Mark")

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

add a comment |

Deinit will called if create object like this

_ = Person(name:"Mark")

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

Deinit will called if create object like this

_ = Person(name:"Mark")

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

answered Jan 30 '18 at 4:52

Pardeep Bishnoi

1217

add a comment |

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