1Trace::Mask::Carp(3)  User Contributed Perl Documentation Trace::Mask::Carp(3)
2
3
4

NAME

6       Trace::Mask::Carp - Trace::Mask tools for masking Carp traces
7

DESCRIPTION

9       This module can be used to apply Trace::Mask behavior to traces from
10       the Carp module.
11

SYNOPSIS

13   LEXICAL
14       You can import "confess()", "cluck()", and "longmess()" from this
15       module, this will mask traces produced from these functions in your
16       module, but will not effect any other modules traces. This is the
17       safest way to use this module.
18
19           use Trace::Mask::Carp qw/confess cluck longmess mask/;
20
21           ...
22
23           confess "XXX"; # throws an exception with a masked trace
24
25           # Any traces produced inside the block below, regardless of what module
26           # calls confess/cluck/longmess, will be masked.
27           mask {
28               ...
29           };
30
31   HANDLERS
32       THIS HAS GLOBAL CONSEQUENCES!!!
33
34       This will put handlers into $SIG{__WARN__} and $SIG{__DIE__} that will
35       mask Carp traces no matter where they are generated.
36
37           use Trace::Mask::Carp '-global'
38
39       Note: This is useful in a test, script, app, psgi file, etc, but should
40       NEVER be used by a cpan module or library.
41
42   OVERRIDE
43       THIS HAS GLOBAL CONSEQUENCES!!!
44
45       This will redefine "confess()", "cluck()", and "longmess()" in Carp
46       itself. This will make it so that any modules that import these
47       functions from Carp will get the masked versions. This will not effect
48       already loaded modules!
49
50           use Trace::Mask::Carp '-wrap'
51
52       Note: This is useful in a test, script, app, psgi file, etc, but should
53       NEVER be used by a cpan module or library.
54

IMPORT OPTIONS

56   FLAGS
57       -global
58           Add global handlers to $SIG{__WARN__} and $SIG{__DIE__} that mask
59           traces coming from carp.
60
61       -wrap
62           Modify "longmess()", "confess()", and "cluck()" in Carp itself so
63           that any modules that load carp will get the mask versions. This
64           will nto effect any modules that have already loaded carp.
65
66   EXPORTS
67       Note: All exports are optional, you must request them if you want them.
68
69       $trace_string = longmess($message)
70       confess($error)
71       cluck($warning)
72           These are basically wrappers around the Carp functions of the same
73           name.  These will get the trace from Carp, then mask it.
74
75       mask { ... }
76           This will set $SIG{__WARN__} and $SIG{__DIE__} for the code in the
77           block.  This means that traces generated inside the mask block will
78           be masked, but traces outside the block will not be effected.
79
80       $hr = parse_carp_line($line)
81           Returns a hashref with information that can be gathered from the
82           line of carp output. This typically includes the file and line
83           number. It may also include an error message or a subroutine name,
84           and any arguments that were passed into the sub when it was called.
85
86       $masked_trace = mask_trace($trace)
87       $masked_trace = mask_trace($trace, $subname)
88           $subname should be 'confess', 'longmess', or 'cluck' typically, but
89           is also optional.
90
91           This takes a trace from Carp (string form) and returns the masked
92           form.
93

SOURCE

95       The source code repository for Trace-Mask can be found at
96       http://github.com/exodist/Trace-Mask.
97

MAINTAINERS

99       Chad Granum <exodist@cpan.org>
100

AUTHORS

102       Chad Granum <exodist@cpan.org>
103

105       Copyright 2015 Chad Granum <exodist7@gmail.com>.
106
107       This program is free software; you can redistribute it and/or modify it
108       under the same terms as Perl itself.
109
110       See http://www.perl.com/perl/misc/Artistic.html
111
112
113
114perl v5.30.0                      2019-07-26              Trace::Mask::Carp(3)
Impressum