GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  DEVEL::ARGNAMES (3)

.ds Aq ’

NAME

Devel::ArgNames - Figure out the names of variables passed into subroutines.

CONTENTS

SYNOPSIS



        use Devel::ArgNames;

        sub foo {
                warn "foo() called with arguments: "
                        . join(", ", map { defined() ? $_ : "<unknown>" } arg_names(@_) );
        }

        foo($bar, $gorch, $blah[4]);



DESCRIPTION

When print-debugging code, you will often ind yourself going:



        print "\$foo is $foo, \$bar is $bar"



With this module, you can write a reusable subroutine easily:



        sub my_print_vars {
                my %vars;

                @vars{arg_names()} = @_;

                foreach my $var ( keys %vars ) {
                        warn "$var is $vars{$var}\n";
                }
        }

        my_print_vars($foo, $bar);



This module doesn’t provide dumping facilities because there are too many to choose from. This is a DIY kit ;-)

EXPORTS

arg_names [ $level ] This function will return the names associated with the variables found on @_, at the level $level. If $level is not provided arg_names’s caller’s caller will be used ($level == 2 in that case).

VERSION CONTROL

This module is maintained using Darcs. You can get the latest version from <http://nothingmuch.woobling.org/Devel-ArgNames/>, and use darcs send to commit changes.

SEE ALSO

Data::Dumper::Simple, DB, Devel::Caller, Devel::Caller::Perl, PadWalker.

AUTHORS

Ran Eilam

Yuval Kogman <nothingmuch@woobling.org>

COPYRIGHT



        Copyright (c) 2007 Yuval Kogman. All rights reserved
        This program is free software; you can redistribute
        it and/or modify it under the same terms as Perl itself.



Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 DEVEL::ARGNAMES (3) 2008-01-02

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.