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Re: sub variables

by golux (Chaplain)
on Jul 23, 2017 at 01:36 UTC ( #1195800=note: print w/replies, xml ) Need Help??

in reply to sub variables

Hi Todd Chester,

I personally like the module Method::Signatures, but tbh it's the only one I've used. I'll have to check out Function::Parameters for comparison's sake, which, judging by its date(s) looks like it may be more recent.

say  substr+lc crypt(qw $i3 SI$),4,5

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Re^2: sub variables
by kevbot (Priest) on Jul 23, 2017 at 05:37 UTC
    I have a fairly large code-base that relies on Method::Signatures, and I have found that it works very well. However, it depends on Devel::Declare. The documentation for Devel::Declare states,
    WARNING Warning: Devel::Declare is a giant bag of crack originally implemented + by mst with the goal of upsetting the perl core developers so much b +y its very existence that they implemented proper keyword handling in + the core. As of perl5 version 14, this goal has been achieved, and modules such +as Devel::CallParser, Function::Parameters, and Keyword::Simple provi +de mechanisms to mangle perl syntax that don't require hallucinogenic + drugs to interpret the error messages they produce.
    So, for new code I would recommend Function::Parameters.

    Also, it looks like the author of Method::Signatures (schwern) would like for the two modules to work well together. See these github issues,

    However, these issues are a few years old and I don't know how much progress has been made in addressing them.
      Another module along this like is Toby Inkster's Kavorka, which seems very powerful.

      Thank you for that info. I have noticed that there is one glitch that occurs in Method::Signatures on occasion. I like to use a func fatal($msg) subroutine in conjunction with caller, to handle fatal errors in some of my programs, and Method::Signatures causes it to sometimes misreport the line from which the error occurred, which schwern alludes to in your link about making it into a wrapper, so it's nice to finally have confirmation of this!

      In lieu of this I will try Function::Parameters with the hopes of using it as a replacement. I already like the idea of typing one less char for functions! (fun instead of func)

      say  substr+lc crypt(qw $i3 SI$),4,5

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