NAME
    Devel::Confess - Warns and dies noisily with stack backtraces

SYNOPSIS
      use Devel::Confess;

    makes every "warn()" and "die()" complains loudly in the calling package
    and elsewhere. Works even when exception objects are thrown. More often
    used on the command line:

      perl -MDevel::Confess script.pl

    or as shorthand:

      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. Unlike
    other similar modules (e.g. Carp::Always), it includes stack traces even
    when exception objects are thrown.

    Here are how stack backtraces produced by this module looks:

      # it works for explicit die's and warn's
      $ perl -MDevel::Confess -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 -MDevel::Confess -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 are also included if raw non-object references are thrown.

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. Enabled by
        default.

    "builtin"
        Load the Devel::Confess::Builtin module to use built in stack traces
        on supported exception types. Disabled by default.

    "dump"
        Dumps the contents of references in arguments in stack trace,
        instead of only showing their stringified version. Disabled by
        default.

    "color"
        Colorizes error messages in red and warnings in yellow. Disabled by
        default.

CONFIGURATION
  %Devel::Confess::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
    Devel::Confess::Buildin 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

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

    *   Carp::Always::Dump

    Please report bugs via CPAN RT
    http://rt.cpan.org/NoAuth/Bugs.html?Dist=Devel-Confess.

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, <haarg@haarg.org>

    *   Adriano Ferreira, <ferreira@cpan.org>

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/>.

