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Re^5: Perl "new" command

by nemesdani (Friar)
on Mar 01, 2012 at 12:42 UTC ( #957199=note: print w/ replies, xml ) Need Help??


in reply to Re^4: Perl "new" command
in thread Perl "new" command

Well, if I had to, I'd name it a multiple constructor. I would find it a "silly and confusing" way to do things ;). I read that definition in the Perl documentation by the way.


Comment on Re^5: Perl "new" command
Re^6: Perl "new" command
by JavaFan (Canon) on Mar 01, 2012 at 12:54 UTC
    So, a subroutine that creates a couple of objects, none of which survive the life time of said subroutine, and which returns an integer, is a "multiple constructor", but it's also "silly and confusing"?

    I find both your classifications of the subroutine not very useful.

      1. I just stated originally, that there is no built in new function in Perl.
      2. I totally agree with you, that Perl's approach is very dangerous, but it doesn't change the fact, that - by the documentation I read - a constructor is simply a sub, that returns a blessed reference.
      If not so, please point me towards the correct documentation, I am not a seasoned Perl veteran.
        a constructor is simply a sub, that returns a blessed reference.
        Note that's not what you said before. There you said:
        I thought a constructor is any routine that calls the bless operator.
        which I find a silly and confusing term.

        BTW, just because something is mentioned in the documentation doesn't mean 1) it's useful, 2) it's true, or 3) I agree with it.

        a constructor is simply a sub, that returns a blessed reference.
        Even if that's in the documentation, that's also a silly and confusing term:
        my foo {$_[0]} use CGI; my $obj = CGI::->new; foo($obj);
        foo returns a blessed reference. Is it useful to call it a constructor?

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