/usr/share/perl5/StackTrace/Auto.pm is in libthrowable-perl 0.200013-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 | package StackTrace::Auto;
# ABSTRACT: a role for generating stack traces during instantiation
$StackTrace::Auto::VERSION = '0.200013';
use Moo::Role;
use Sub::Quote ();
use Module::Runtime 0.002 ();
use Scalar::Util ();
#pod =head1 SYNOPSIS
#pod
#pod First, include StackTrace::Auto in a Moose or Mooclass...
#pod
#pod package Some::Class;
#pod # NOTE: Moo can also be used here instead of Moose
#pod use Moose;
#pod with 'StackTrace::Auto';
#pod
#pod ...then create an object of that class...
#pod
#pod my $obj = Some::Class->new;
#pod
#pod ...and now you have a stack trace for the object's creation.
#pod
#pod print $obj->stack_trace->as_string;
#pod
#pod =attr stack_trace
#pod
#pod This attribute will contain an object representing the stack at the point when
#pod the error was generated and thrown. It must be an object performing the
#pod C<as_string> method.
#pod
#pod =attr stack_trace_class
#pod
#pod This attribute may be provided to use an alternate class for stack traces. The
#pod default is L<Devel::StackTrace|Devel::StackTrace>.
#pod
#pod In general, you will not need to think about this attribute.
#pod
#pod =cut
has stack_trace => (
is => 'ro',
isa => Sub::Quote::quote_sub(q{
require Scalar::Util;
die "stack_trace must be have an 'as_string' method!" unless
Scalar::Util::blessed($_[0]) && $_[0]->can('as_string')
}),
default => Sub::Quote::quote_sub(q{
$_[0]->stack_trace_class->new(
@{ $_[0]->stack_trace_args },
);
}),
lazy => 1,
init_arg => undef,
);
sub BUILD {};
before BUILD => sub { $_[0]->stack_trace };
has stack_trace_class => (
is => 'ro',
isa => Sub::Quote::quote_sub(q{
die "stack_trace_class must be a class that responds to ->new"
unless defined($_[0]) && !ref($_[0]) && $_[0]->can("new");
}),
coerce => Sub::Quote::quote_sub(q{
Module::Runtime::use_package_optimistically($_[0]);
}),
lazy => 1,
builder => '_build_stack_trace_class',
);
#pod =attr stack_trace_args
#pod
#pod This attribute is an arrayref of arguments to pass when building the stack
#pod trace. In general, you will not need to think about it.
#pod
#pod =cut
has stack_trace_args => (
is => 'ro',
isa => Sub::Quote::quote_sub(q{
die "stack_trace_args must be an arrayref"
unless ref($_[0]) && ref($_[0]) eq "ARRAY";
}),
lazy => 1,
builder => '_build_stack_trace_args',
);
sub _build_stack_trace_class {
return 'Devel::StackTrace';
}
sub _build_stack_trace_args {
my ($self) = @_;
Scalar::Util::weaken($self); # Prevent memory leak
my $found_mark = 0;
return [
filter_frames_early => 1,
frame_filter => sub {
my ($raw) = @_;
my $sub = $raw->{caller}->[3];
(my $package = $sub) =~ s/::\w+\z//;
if ($found_mark == 2) {
return 1;
}
elsif ($found_mark == 1) {
return 0 if $sub =~ /::new$/ && $self->isa($package);
$found_mark++;
return 1;
} else {
$found_mark++ if $sub =~ /::new$/ && $self->isa($package);
return 0;
}
},
];
}
no Moo::Role;
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
StackTrace::Auto - a role for generating stack traces during instantiation
=head1 VERSION
version 0.200013
=head1 SYNOPSIS
First, include StackTrace::Auto in a Moose or Mooclass...
package Some::Class;
# NOTE: Moo can also be used here instead of Moose
use Moose;
with 'StackTrace::Auto';
...then create an object of that class...
my $obj = Some::Class->new;
...and now you have a stack trace for the object's creation.
print $obj->stack_trace->as_string;
=head1 ATTRIBUTES
=head2 stack_trace
This attribute will contain an object representing the stack at the point when
the error was generated and thrown. It must be an object performing the
C<as_string> method.
=head2 stack_trace_class
This attribute may be provided to use an alternate class for stack traces. The
default is L<Devel::StackTrace|Devel::StackTrace>.
In general, you will not need to think about this attribute.
=head2 stack_trace_args
This attribute is an arrayref of arguments to pass when building the stack
trace. In general, you will not need to think about it.
=head1 AUTHORS
=over 4
=item *
Ricardo SIGNES <rjbs@cpan.org>
=item *
Florian Ragwitz <rafl@debian.org>
=back
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2015 by Ricardo SIGNES.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|