What kind of sick, twisted mind calls FreeAndNil on an interface?

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What kind of sick, twisted mind calls FreeAndNil on an interface?

Comments

  1. Dorin DuminicaFebruary 7, 2013 at 11:21 AM

    (-_^) whaaa?!

    ReplyDelete
  2. Stefan MeisnerFebruary 7, 2013 at 11:35 AM

    Probably the programmer has refactored from using objects to using interfaces recently and - as the parameter of FreeAndNil is typeless and no compiler hint is given - forgot to remove this. However... I've seen much worse... interface methods like "FreeOnNextReleaseCall". Guess, what it is doing? I had much fun debugging AVs due to such ingenious ideas... :-/

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  3. Thomas Mueller (dummzeuch)February 7, 2013 at 11:36 AM

    Somebody who changed an object reference to an interface without realizing this consequence. (Yes, I am guilty of this. It took me forever to figure out the reason for the weird AVs that were caused by this.)

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  4. Stefan MeisnerFebruary 7, 2013 at 11:38 AM

    @Thomas: you can rest assured as this is easy to forget doing such a refactoring (see my comment above why).

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  5. Nick HodgesFebruary 7, 2013 at 12:04 PM

    Stefan Meisner   LOL -- argh!  It was my sick twisted mind!  I changed the class to an interface.  Oh the shame!  ;-)

    Okay, this is yet another reason to never use FreeAndNil -- if Free were uses, the compiler would have let me know!  ;-)

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  6. Dorin DuminicaFebruary 7, 2013 at 12:06 PM

    Nick Hodges interface strikes back, part 1! ((:

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  7. Thomas Lodewick (JBScoutBerlin)February 7, 2013 at 12:20 PM

    Nick Hodges I was wondering when someone would say to "never us FreeAndNil" but its funny that yourself are the one ;-D

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  8. gaetan maertenFebruary 7, 2013 at 12:47 PM

    A freeandhihilist , of course.

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  9. Lars FosdalFebruary 7, 2013 at 10:19 PM

    How did he live with the exception?
    Try
    FreeAndNil(intf);
    Finally
    Inherited Destroy;
    End;
    ?

    ReplyDelete
  10. Olivier SCHWABFebruary 8, 2013 at 1:16 AM

    Sorry guys, but for Delphi N00bs like I am , EMB doesn't show the example ...  look at the procedure procedure TMyThread.OnTerminate in the  delphi code :

    http://docwiki.embarcadero.com/CodeExamples/XE2/en/TThreadYield_(Delphi)


    Honestly, coming from the bargage collector world, all this debate about FreeAndNil let me totally...  puzzled

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  11. Lars FosdalFebruary 9, 2013 at 4:55 AM

    That is some seriously retarded thread code!

    ReplyDelete
  12. Ilya SFebruary 11, 2013 at 9:45 AM

    Simon Stuart have you laughed at "synchronize everything and everywhere in the thread" thing?

    ReplyDelete

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