1Catalyst::Plugin::StackUTsrearceC(o3n)tributed Perl DocuCmaetnatlaytsito:n:Plugin::StackTrace(3)
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6 Catalyst::Plugin::StackTrace - Display a stack trace on the debug
7 screen
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10 use Catalyst qw/-Debug StackTrace/;
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13 This plugin will enhance the standard Catalyst debug screen by
14 including a stack trace of your appliation up to the point where the
15 error occurred. Each stack frame is displayed along with the package
16 name, line number, file name, and code context surrounding the line
17 number.
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19 This plugin is only active in -Debug mode by default, but can be
20 enabled by setting the "enable" config option.
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23 Configuration is optional and is specified in
24 MyApp->config->{stacktrace}.
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26 enable
27 Allows you forcibly enable or disalbe this plugin, ignoring the current
28 debug setting. If this option is defined, its value will be used.
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30 context
31 The number of context lines of code to display on either side of the
32 stack frame line. Defaults to 3.
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34 reverse
35 By default, the stack frames are shown in from "top" to "bottom"
36 (newest to oldest). Enabling this option reverses the stack frames so
37 they will be displayed "bottom" to "top", or from the callers
38 perspective.
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40 verbose
41 This option sets the amount of stack frames you want to see in the
42 stack trace. It defaults to 0, meaning only frames from your
43 application's namespace are shown. You can use levels 1 and 2 for
44 deeper debugging.
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46 If set to 1, the stack trace will include frames from packages outside
47 of your application's namespace, but not from most of the Catalyst
48 internals. Packages ignored at this level include:
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50 Catalyst
51 Catalyst::Action
52 Catalyst::Base
53 Catalyst::Dispatcher
54 Catalyst::Engine::*
55 Catalyst::Plugin::StackTrace
56 Catalyst::Plugin::Static::Simple
57 NEXT
58 main
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60 If set to 2, the stack trace will include frames from everything except
61 this module.
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64 The following methods are extended by this plugin.
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66 execute
67 In execute, we create a local die handler to generate the stack
68 trace.
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70 finalize_error
71 In finalize_error, we inject the stack trace HTML into the debug
72 screen below the error message.
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74 setup
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77 Catalyst
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80 Andy Grundman, <andy@hybridized.org>
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82 Matt S. Trout, <mst@shadowcatsystems.co.uk>
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85 The authors of CGI::Application::Plugin::DebugScreen, from which a lot
86 of code was used.
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89 Copyright (c) 2005 - 2009 the Catalyst::Plugin::StackTrace "AUTHORS" as
90 listed above.
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93 This program is free software, you can redistribute it and/or modify it
94 under the same terms as Perl itself.
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98perl v5.30.0 2019-07-26 Catalyst::Plugin::StackTrace(3)