gitpan / carp-always-andrefs Goto Github PK
View Code? Open in Web Editor NEWRead-only release history for Carp-Always-AndRefs
Home Page: http://metacpan.org/release/Carp-Always-AndRefs
Read-only release history for Carp-Always-AndRefs
Home Page: http://metacpan.org/release/Carp-Always-AndRefs
NAME Carp::Always::AndRefs - Warns and dies noisily with stack backtraces SYNOPSIS use Carp::Always::AndRefs; makes every "warn()" and "die()" complains loudly in the calling package and elsewhere. More often used on the command line: perl -MCarp::Always::AndRefs script.pl Also includes Devel::Confess as an alias: perl -MDevel::Confess script.pl or perl -d:Confess script.pl DESCRIPTION This module is meant as a debugging aid. It can be used to make a script complain loudly with stack backtraces when warn()ing or die()ing. Here are how stack backtraces produced by this module looks: # it works for explicit die's and warn's $ perl -MCarp::Always::AndRefs -e 'sub f { die "arghh" }; sub g { f }; g' arghh at -e line 1. main::f() called at -e line 1 main::g() called at -e line 1 # it works for interpreter-thrown failures $ perl -MCarp::Always::AndRefs -w -e 'sub f { $a = shift; @a = @$a };' \ -e 'sub g { f(undef) }; g' Use of uninitialized value in array dereference at -e line 1. main::f('undef') called at -e line 2 main::g() called at -e line 2 In the implementation, the "Carp" module does the heavy work, through "longmess()". The actual implementation sets the signal hooks $SIG{__WARN__} and $SIG{__DIE__} to emit the stack backtraces. Oh, by the way, "carp" and "croak" when requiring/using the "Carp" module are also made verbose, behaving like "cluck" and "confess", respectively. Stack traces will also be included for exception objects and non-object references. METHODS import( @options ) Enables stack traces and sets options. Options can be prefixed with no_ to disable them. "objects" Enable attaching stack traces to exception objects. Defaults to on. "hacks" Load the Carp::Always::AndRefs::Hacks module to use built in stack traces on supported exception types. CONFIGURATION %Carp::Always::AndRefs::NoTrace Classes or roles added to this hash will not have stack traces attached to them. This is useful for exception classes that provide their own stack traces, or classes that don't cope well with being re-blessed. If Carp::Always::AndRefs::Hacks is loaded, it will automatically add its supported exception types to this hash. Default Entries: Throwable::Error Provides a stack trace Moose::Error::Default Provides a stack trace Ouch Conflicts with mechanism used to attach stack traces. ACKNOWLEDGMENTS The idea, part of the code, and most of the documentation are taken from Carp::Always. SEE ALSO * Carp::Always * Carp * Acme::JavaTrace and Devel::SimpleTrace * Carp::Always::Color * Carp::Source::Always Please report bugs via CPAN RT http://rt.cpan.org/NoAuth/Bugs.html?Dist=Carp-Always-AndRefs. BUGS This module uses several ugly tricks to do its work and surely has bugs. * This module does not play well with other modules which fusses around with "warn", "die", $SIG{'__WARN__'}, $SIG{'__DIE__'}. AUTHORS * Graham Knop, <[email protected]> * Adriano Ferreira, <[email protected]> CONTRIBUTORS None yet. COPYRIGHT Copyright (c) 2005-2013 the "AUTHORS" and "CONTRIBUTORS" as listed above. LICENSE This library is free software and may be distributed under the same terms as perl itself. See <http://dev.perl.org/licenses/>.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.