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20 lines
1.1 KiB
Text
20 lines
1.1 KiB
Text
Carp::Clan - Report errors from perspective of caller of a "clan" of modules.
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This module is based on "Carp.pm" from Perl 5.005_03. It has been modified to
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skip all package names matching the pattern given in the "use" statement
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inside the "qw()" term (or argument list).
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Suppose you have a family of modules or classes named "Pack::A", "Pack::B" and
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so on, and each of them uses "Carp::Clan qw(^Pack::);" (or at least the one in
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which the error or warning gets raised).
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Thus when for example your script "tool.pl" calls module "Pack::A", and module
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"Pack::A" calls module "Pack::B", an exception raised in module "Pack::B" will
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appear to have originated in "tool.pl" where "Pack::A" was called, and not in
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"Pack::A" where "Pack::B" was called, as the unmodified "Carp.pm" would try to
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make you believe :-).
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This works similarly if "Pack::B" calls "Pack::C" where the exception is
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raised, etcetera.
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In other words, this blames all errors in the "Pack::*" modules on the user of
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these modules, i.e., on you. ;-)
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For more informations, see:
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http://search.cpan.org/dist/Carp-Clan/lib/Carp/Clan.pod
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