Re: Remove bless reference or class/package name from method arguments

by duelafn (Parson)

on May 20, 2009 at 10:29 UTC ( [id://765174]=note: print w/replies, xml )

Need Help??

For these particular examples, argument counting would be sufficient.

sub pow
{
  shift if @_ > 2;
  return $_[0] ** $_[1];
}
[download]

If the number of arguments is unknown (e.g., sum), I do not know how (and do not believe that it is possible) to determine how the sub was invoked.

Good Day,
Dean

Comment on Re: Remove bless reference or class/package name from method arguments Download Code

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Re^2: Remove bless reference or class/package name from method arguments by ikegami (Patriarch) on May 20, 2009 at 14:48 UTC
Or just `sub pow { return $_[-2] ** $_[-1]; }` [download] Approaches that rely on the number of arguments rather than the type of arguments are going to be more resilient.	[reply] [d/l]
Re^2: Remove bless reference or class/package name from method arguments by binf-jw (Monk) on May 20, 2009 at 10:38 UTC
Thank you Dean, For most of the implementations I can use argument counting, infact I commonly pass multiple arguments as a HASH reference which kind of solves the problem. Variable size lists can even pass as an ARRAY reference: `$obj->staticMethod( [ $arg1, $arg2, $arg3 ] );` [download] I was hoping there was some funky way of getting how it was invoked just for curiousity. John,	[reply] [d/l]

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