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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
package Devel::Confess::_Util;
use 5.006;
use strict;
use warnings FATAL => 'all';
no warnings 'once';
use Exporter (); BEGIN { *import = \&Exporter::import }
our @EXPORT = qw(
blessed
refaddr
weaken
longmess
_str_val
_in_END
_can_stringify
_can
_isa
);
use Carp ();
use Carp::Heavy ();
use Scalar::Util qw(blessed refaddr reftype);
# fake weaken if it isn't available. will cause leaks, but this
# is a brute force debugging tool, so we can deal with it.
*weaken = defined &Scalar::Util::weaken
? \&Scalar::Util::weaken
: sub ($) { 0 };
*longmess = !Carp->VERSION ? eval q{
package
Carp;
our (%CarpInternal, %Internal, $CarpLevel);
$CarpInternal{Carp}++;
$CarpInternal{warnings}++;
$Internal{Exporter}++;
$Internal{'Exporter::Heavy'}++;
sub {
my $level = 0;
while (1) {
my $p = (caller($level))[0] || last;
last
unless $CarpInternal{$p} || $Internal{$p};
$level++;
}
local $CarpLevel = $CarpLevel + $level;
no strict 'refs';
local *{"threads::tid"} = \&threads::tid
if defined &threads::tid && !defined &{"threads::tid"};
&longmess;
};
} : eval q{
package
Carp;
sub {
local $INC{'Carp/Heavy.pm'} = $INC{'Carp/Heavy.pm'} || 1;
no strict 'refs';
local *{"threads::tid"} = \&threads::tid
if defined &threads::tid && !defined &{"threads::tid"};
&longmess;
};
} or die $@;
if (defined &Carp::format_arg && $Carp::VERSION < 1.32) {
my $format_arg = \&Carp::format_arg;
eval q{
package
Carp;
our $in_recurse;
$format_arg if 0; # capture
no warnings 'redefine';
sub format_arg {
if (! $in_recurse) {
local $SIG{__DIE__} = sub {};
local $in_recurse = 1;
local $@;
my $arg;
if (
Devel::Confess::_Util::blessed($_[0])
&& eval { $_[0]->can('CARP_TRACE') }
) {
return $_[0]->CARP_TRACE;
}
elsif (
ref $_[0]
and our $RefArgFormatter
and eval { $arg = $RefArgFormatter->(@_); 1 }
) {
return $arg;
}
}
$format_arg->(@_);
}
1;
} or die $@;
}
eval q{
sub _str_val {
no overloading;
"$_[0]";
}
1;
} or eval q{
sub _str_val {
my $class = &blessed;
return "$_[0]" unless defined $class;
return sprintf("%s=%s(0x%x)", $class, &reftype, &refaddr);
}
1;
} or die $@;
{
if (defined ${^GLOBAL_PHASE}) {
eval q{
sub _global_destruction () { ${^GLOBAL_PHASE} eq q[DESTRUCT] }
sub _in_END () { ${^GLOBAL_PHASE} eq "END" }
1;
} or die $@;
}
else {
eval q{
# this is slightly a lie, but accurate enough for our purposes
our $global_phase = 'RUN';
sub _global_destruction () {
if ($global_phase ne 'DESTRUCT') {
local $SIG{__WARN__} = sub {
$global_phase = 'DESTRUCT' if $_[0] =~ /global destruction\.\n\z/
};
warn 1;
}
$global_phase eq 'DESTRUCT';
}
sub _in_END () {
if ($global_phase eq 'RUN' && $^S) {
# END blocks are FILO so we can't install one to run first.
# only way to detect END reliably seems to be by using caller.
# I hate this but it seems to be the best available option.
# The top two frames will be an eval and the END block.
my $i;
1 while CORE::caller(++$i);
if ($i > 2) {
my @top = CORE::caller($i - 1);
my @next = CORE::caller($i - 2);
if (
$top[3] eq '(eval)'
&& $next[3] =~ /::END$/
&& $top[2] == $next[2]
&& $top[1] eq $next[1]
&& $top[0] eq 'main'
&& $next[0] eq 'main'
) {
$global_phase = 'END';
}
}
}
$global_phase eq 'END';
}
END {
$global_phase = 'END';
}
1;
} or die $@;
}
}
if ("$]" < 5.008) {
eval q{
sub _can_stringify () {
my $i = 0;
while (my @caller = caller($i++)) {
if ($caller[3] eq '(eval)') {
return 0;
}
elsif ($caller[7]) {
return 0;
}
}
return 1;
}
1;
} or die $@;
}
else {
eval q{
sub _can_stringify () {
defined $^S && !$^S;
}
1;
} or die $@;
}
sub _isa;
if ($INC{'UNIVERSAL/isa.pm'}) {
*__isa = \&UNIVERSAL::isa;
eval q{
sub _isa {
local $UNIVERSAL::isa::recursing = 1;
local $UNIVERSAL::isa::_recursing = 1;
__isa(@_);
}
1;
} or die $@;
}
else {
*_isa = \&UNIVERSAL::isa;
}
sub _can;
if ($INC{'UNIVERSAL/can.pm'}) {
*__can = \&UNIVERSAL::can;
eval q{
sub _can {
local $UNIVERSAL::can::recursing = 1;
__can(@_);
}
1;
} or die $@;
}
else {
*_can = \&UNIVERSAL::can;
}
1;
|
