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Re^4: Predefining sub Parameters

by willyyam (Priest)
on Jun 23, 2005 at 13:22 UTC ( #469382=note: print w/replies, xml ) Need Help??


in reply to Re^3: Predefining sub Parameters
in thread Predefining sub Parameters

It's a good point. Damn Canadians and their logic ;-) I wasn't really trying to validate against type so much as by number, and having the first line of my sub definition be a hint as to its usage. I have the attention span of a hummingbird on crack, and I forget what my subs do and how to call them between uses in the same coding session. I also really like having sane variable names in my functions, and @_[1] is not, in my opinion, sane. Useful, but not sane.

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Re^5: Predefining sub Parameters
by diotalevi (Canon) on Jun 24, 2005 at 05:02 UTC

    Validate by number? That's even easier. Seriously, go use Params::Validate when you want to do this sort of thing. Its simple enough for casual use and has enough bells and whistles to do heavy duty things too.

    use Params::Validate 'validate_pos'; sub foo { # Three args are required. my ( $foo, $bar, $baz ) = validate_pos( @_, 1, 1, 1 ); ... }

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