Catalyst::Plugin::StacUsercContributed Perl DocCatalyst::Plugin::StackTrace(3)NAMECatalyst::Plugin::StackTrace - Display a stack trace on the debug
screen
SYNOPSIS
use Catalyst qw/-Debug StackTrace/;
DESCRIPTION
This plugin will enhance the standard Catalyst debug screen by
including a stack trace of your appliation up to the point where the
error occurred. Each stack frame is displayed along with the package
name, line number, file name, and code context surrounding the line
number.
This plugin is only active in -Debug mode by default, but can be
enabled by setting the "enable" config option.
CONFIGURATION
Configuration is optional and is specified in
MyApp->config->{stacktrace}.
enable
Allows you forcibly enable or disalbe this plugin, ignoring the current
debug setting. If this option is defined, its value will be used.
context
The number of context lines of code to display on either side of the
stack frame line. Defaults to 3.
reverse
By default, the stack frames are shown in from "top" to "bottom"
(newest to oldest). Enabling this option reverses the stack frames so
they will be displayed "bottom" to "top", or from the callers
perspective.
verbose
This option sets the amount of stack frames you want to see in the
stack trace. It defaults to 0, meaning only frames from your
application's namespace are shown. You can use levels 1 and 2 for
deeper debugging.
If set to 1, the stack trace will include frames from packages outside
of your application's namespace, but not from most of the Catalyst
internals. Packages ignored at this level include:
Catalyst
Catalyst::Action
Catalyst::Base
Catalyst::Dispatcher
Catalyst::Engine::*
Catalyst::Plugin::StackTrace
Catalyst::Plugin::Static::Simple
NEXT
main
If set to 2, the stack trace will include frames from everything except
this module.
INTERNAL METHODS
The following methods are extended by this plugin.
execute
In execute, we create a local die handler to generate the stack
trace.
finalize_error
In finalize_error, we inject the stack trace HTML into the debug
screen below the error message.
setup
SEE ALSO
Catalyst
AUTHORS
Andy Grundman, <andy@hybridized.org>
Matt S. Trout, <mst@shadowcatsystems.co.uk>
THANKS
The authors of CGI::Application::Plugin::DebugScreen, from which a lot
of code was used.
COPYRIGHT
This program is free software, you can redistribute it and/or modify it
under the same terms as Perl itself.
perl v5.14.1 2009-04-20 Catalyst::Plugin::StackTrace(3)
