Re^2: Object method prototypes?

I like named parameters, but I don't like hashrefs. (update: for parameter passing, I mean)

When I need more than 2 or so parameters I tend to use this construct:

sub my_method {
 my ($self,%args) = @_;
 # now do stuff with $self and %args
}

# which is called as

$object->my_method( foo => $value, bar => $bee );
[download]

Saves typing and IMHO is nicer to look at at both sides.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

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Re^3: Object method prototypes? by Puny Human (Initiate) on Dec 14, 2007 at 01:39 UTC
That works, as long as you don't mind creating and destroying an argument hash every time your method is called. Passing a hashref would avoid that, but unless you're writing performance-sensitive code it doesn't matter much.	[reply]
Re^4: Object method prototypes? by mreece (Friar) on Dec 14, 2007 at 02:32 UTC
what's worse than copying the hash is having the called method (or another it calls) impolitely muck with your hashref by deleting or adding keys for its own purposes. next thing you know, you find yourself making a copy anyway so you can send an anon ref to that instead..	[reply]
Re^4: Object method prototypes? by ysth (Canon) on Dec 14, 2007 at 05:22 UTC
No, actually, passing a new anonymous hashref creates and destroys a hash with every call, while having a `my %args` in the method does not. (The space allocated for the lexical hash is retained across calls whenever possible.) -- CollegeGear.com - more than just college gear (though, yes, we have college-branded teddy bears)	[reply] [d/l]
Re^4: Object method prototypes? by blazar (Canon) on Dec 14, 2007 at 15:41 UTC
I personally believe that passing a hashref would also create and destroy a hash every time your method is called. Additionally, it would take a reference to it. So the performance-sensitive comment is completely moot. `--` If you can't understand the incipit, then please check the IPB Campaign.	[reply] [d/l]