/usr/share/perl5/StackTrace/Auto.pm is in libthrowable-perl 0.102080-1.
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 | package StackTrace::Auto;
BEGIN {
$StackTrace::Auto::VERSION = '0.102080';
}
use Moose::Role 0.87;
# ABSTRACT: a role for generating stack traces during instantiation
{
use Moose::Util::TypeConstraints;
has stack_trace => (
is => 'ro',
isa => duck_type([ qw(as_string) ]),
builder => '_build_stack_trace',
init_arg => undef,
);
my $tc = subtype as 'ClassName';
coerce $tc, from 'Str', via { Class::MOP::load_class($_); $_ };
has stack_trace_class => (
is => 'ro',
isa => $tc,
coerce => 1,
lazy => 1,
builder => '_build_stack_trace_class',
);
no Moose::Util::TypeConstraints;
}
has stack_trace_args => (
is => 'ro',
isa => 'ArrayRef',
lazy => 1,
builder => '_build_stack_trace_args',
);
sub _build_stack_trace_class {
return 'Devel::StackTrace';
}
sub _build_stack_trace_args {
my ($self) = @_;
my $found_mark = 0;
my $uplevel = 3; # number of *raw* frames to go up after we found the marker
return [
frame_filter => sub {
my ($raw) = @_;
if ($found_mark) {
return 1 unless $uplevel;
return !$uplevel--;
}
else {
$found_mark = scalar $raw->{caller}->[3] =~ /__stack_marker$/;
return 0;
}
},
];
}
sub _build_stack_trace {
my ($self) = @_;
return $self->stack_trace_class->new(
@{ $self->stack_trace_args },
);
}
around new => sub {
my $next = shift;
my $self = shift;
return $self->__stack_marker($next, @_);
};
sub __stack_marker {
my $self = shift;
my $next = shift;
return $self->$next(@_);
}
no Moose::Role;
1;
__END__
=pod
=head1 NAME
StackTrace::Auto - a role for generating stack traces during instantiation
=head1 VERSION
version 0.102080
=head1 SYNOPSIS
First, include StackTrace::Auto in a Moose class...
package Some::Class;
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) 2010 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
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