perl-Carp-Clan-6.04-26.2.noarch.rpm


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Description

perl-Carp-Clan - Carp::Clan Perl module

Property Value
Distribution openSUSE Leap 42.2
Repository openSUSE Oss all
Package name perl-Carp-Clan
Package version 6.04
Package release 26.2
Package architecture noarch
Package type rpm
Installed size 46.34 KB
Download size 25.76 KB
Official Mirror ftp.gwdg.de
This module is based on "'Carp.pm'" from Perl 5.005_03. It has been
modified to skip all package names matching the pattern given in the "use"
statement inside the "'qw()'" term (or argument list).
Suppose you have a family of modules or classes named "Pack::A", "Pack::B"
and so on, and each of them uses "'Carp::Clan qw(^Pack::);'" (or at least
the one in which the error or warning gets raised).
Thus when for example your script "tool.pl" calls module "Pack::A", and
module "Pack::A" calls module "Pack::B", an exception raised in module
"Pack::B" will appear to have originated in "tool.pl" where "Pack::A" was
called, and not in "Pack::A" where "Pack::B" was called, as the unmodified
"'Carp.pm'" would try to make you believe ':-)'.
This works similarly if "Pack::B" calls "Pack::C" where the exception is
raised, etcetera.
In other words, this blames all errors in the "'Pack::*'" modules on the
user of these modules, i.e., on you. ';-)'
The skipping of a clan (or family) of packages according to a pattern
describing its members is necessary in cases where these modules are not
classes derived from each other (and thus when examining '@ISA' - as in the
original "'Carp.pm'" module - doesn't help).
The purpose and advantage of this is that a "clan" of modules can work
together (and call each other) and throw exceptions at various depths down
the calling hierarchy and still appear as a monolithic block (as though
they were a single module) from the perspective of the caller.
In case you just want to ward off all error messages from the module in
which you "'use Carp::Clan'", i.e., if you want to make all error messages
or warnings to appear to originate from where your module was called (this
is what you usually used to "'use Carp;'" for ';-)'), instead of in your
module itself (which is what you can do with a "die" or "warn" anyway), you
do not need to provide a pattern, the module will automatically provide the
correct one for you.
I.e., just "'use Carp::Clan;'" without any arguments and call "carp" or
"croak" as appropriate, and they will automatically defend your module
against all blames!
In other words, a pattern is only necessary if you want to make several
modules (more than one) work together and appear as though they were only
one.
Forcing a Stack Trace
As a debugging aid, you can force "'Carp::Clan'" to treat a "croak" as
a "confess" and a "carp" as a "cluck". In other words, force a detailed
stack trace to be given. This can be very helpful when trying to
understand why, or from where, a warning or error is being generated.
This feature is enabled either by "importing" the non-existent symbol
'verbose', or by setting the global variable "'$Carp::Clan::Verbose'"
to a true value.
You would typically enable it by saying
use Carp::Clan qw(verbose);
Note that you can both specify a "family pattern" and the string
"verbose" inside the "'qw()'" term (or argument list) of the "use"
statement, but consider that a pattern of packages to skip is pointless
when "verbose" causes a full stack trace anyway.

Alternatives

Package Version Architecture Repository
perl-Carp-Clan - - -

Requires

Name Value
perl(:MODULE_COMPAT_5.18.2) -
perl(Test::Exception) -
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsLzma) <= 4.4.6-1

Provides

Name Value
perl(Carp::Clan) = 6.04
perl(DB) -
perl-Carp-Clan = 6.04-26.2

Download

Type URL
Binary Package perl-Carp-Clan-6.04-26.2.noarch.rpm
Source Package perl-Carp-Clan-6.04-26.2.src.rpm

Install Howto

Install perl-Carp-Clan rpm package:

# zypper install perl-Carp-Clan

See Also

Package Description
perl-Carton-1.0.28-1.1.noarch.rpm Perl module dependency manager (aka Bundler for Perl)
perl-Catalyst-Manual-5.9009-4.1.noarch.rpm The Catalyst developer's manual
perl-Chart-2.4.10-4.1.noarch.rpm Series of Charting Modules
perl-Class-Accessor-0.34-26.1.x86_64.rpm Automated accessor generation
perl-Class-Accessor-Chained-0.01-16.1.x86_64.rpm Make chained accessors
perl-Class-Accessor-Grouped-0.10012-3.1.noarch.rpm Lets you build groups of accessors
perl-Class-Accessor-Lite-0.08-4.1.noarch.rpm Minimalistic Variant of Class::Accessor
perl-Class-Adapter-1.08-13.1.noarch.rpm Perl implementation of the "Adapter" Design Pattern
perl-Class-Autouse-2.01-11.1.x86_64.rpm Run-time class loading on first method call
perl-Class-Base-0.06-4.1.noarch.rpm useful base class for deriving other modules
perl-Class-C3-0.31-1.1.noarch.rpm Pragma to Use the C3 Method Resolution Order Algorithm
perl-Class-C3-Adopt-NEXT-0.14-2.1.noarch.rpm Make Next Suck Less
perl-Class-C3-Componentised-1.001000-10.1.noarch.rpm Class::C3::Componentised Perl module
perl-Class-C3-XS-0.13-22.2.x86_64.rpm XS speedups for Class::C3
perl-Class-Container-0.12-2.1.noarch.rpm Glues object frameworks together transparently
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