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Re: Calling multi functions in a single statement

by Eliya (Vicar)
on Apr 19, 2012 at 12:54 UTC ( #965943=note: print w/replies, xml ) Need Help??

in reply to Calling multi functions in a single statement

So will $logviewer->get_log_records()->XML_file(); just call both the functions

The first method is being called on an object instance of type CCI::LogViewer, and once it has returned, the second method will be called on whatever object has been returned by the first method (could be an object of a different type (i.e. I haven't checked what it returns)).

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Re^2: Calling multi functions in a single statement
by akagrawal3 (Beadle) on Apr 20, 2012 at 05:06 UTC
    That sounds good. But from what you said I believe that there should be more than one XML_file subroutine so that once an object is returned by get_log_records() it could decide on which Package it should call XML_file(). Now if that is true, I found that the subroutine XML_file is only in one package and not in any other. So does that make any sense in executing  $logviewer->get_log_records()->XML_file(); . It could have rather just been written as
    $logviewer->get_log_records(); $logviewer->XML_file();
      Just because XML_file is in the same class as get_log_records doesn't mean the two statements are equivalent. Perhaps they are. But that depends on what get_log_records returns. And it only depends on what get_log_records returns.

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