line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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package JE::LValue; |
2
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3
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our $VERSION = '0.065'; |
4
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5
|
109
|
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|
109
|
|
32180
|
use strict; |
|
109
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|
|
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|
297
|
|
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109
|
|
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|
3301
|
|
6
|
109
|
|
|
109
|
|
545
|
use warnings; no warnings 'utf8'; |
|
109
|
|
|
109
|
|
646
|
|
|
109
|
|
|
|
|
2393
|
|
|
109
|
|
|
|
|
469
|
|
|
109
|
|
|
|
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272
|
|
|
109
|
|
|
|
|
2787
|
|
7
|
|
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|
8
|
109
|
|
|
109
|
|
531
|
use List::Util 'first'; |
|
109
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|
|
|
|
275
|
|
|
109
|
|
|
|
|
6390
|
|
9
|
109
|
|
|
109
|
|
644
|
use Scalar::Util 'blessed'; |
|
109
|
|
|
|
|
266
|
|
|
109
|
|
|
|
|
37877
|
|
10
|
|
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11
|
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|
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require JE::Code; |
12
|
|
|
|
|
|
|
require JE::Object::Error::TypeError; |
13
|
|
|
|
|
|
|
require JE::Object::Error::ReferenceError; |
14
|
|
|
|
|
|
|
|
15
|
|
|
|
|
|
|
import JE::Code 'add_line_number'; |
16
|
|
|
|
|
|
|
sub add_line_number; |
17
|
|
|
|
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18
|
|
|
|
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|
|
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19
|
|
|
|
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|
|
our $ovl_infix = join ' ', @overload::ops{qw[ |
20
|
|
|
|
|
|
|
with_assign assign num_comparison 3way_comparison str_comparison binary |
21
|
|
|
|
|
|
|
]}; |
22
|
|
|
|
|
|
|
our $ovl_prefix = join ' ', grep !/^(?:neg|atan2)\z/, |
23
|
|
|
|
|
|
|
map split(/ /), @overload::ops{qw[ unary mutators func ]}; |
24
|
|
|
|
|
|
|
|
25
|
|
|
|
|
|
|
use overload |
26
|
|
|
|
|
|
|
fallback => !1, |
27
|
|
|
|
|
|
|
nomethod => sub { |
28
|
13410
|
|
|
13411
|
|
16024
|
my $at = $@; |
29
|
13410
|
|
|
|
|
21129
|
my ($self, $other, $reversed, $symbol) = @_; |
30
|
13410
|
50
|
|
|
|
24694
|
return $self if $symbol eq '='; |
31
|
13410
|
|
|
|
|
20694
|
$self = $self->get; |
32
|
13407
|
|
|
|
|
70534
|
my $sym_regexp = qr/(?:^| )\Q$symbol\E(?:$| )/; |
33
|
13407
|
|
|
|
|
12767
|
my $val; |
34
|
13407
|
50
|
|
|
|
105415
|
if ($overload::ops{conversion} =~ $sym_regexp) { |
|
|
50
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
35
|
7
|
|
|
|
|
94
|
return $self; |
36
|
|
|
|
|
|
|
} |
37
|
|
|
|
|
|
|
elsif($ovl_infix =~ $sym_regexp) { |
38
|
13407
|
|
|
|
|
49066
|
my $bits = (caller 0)[9]; |
39
|
13407
|
100
|
|
24
|
|
935673
|
$val = eval 'BEGIN{${^WARNING_BITS} = $bits}' |
|
23
|
|
|
22
|
|
365
|
|
|
21
|
|
|
22
|
|
296
|
|
|
21
|
|
|
21
|
|
286
|
|
|
20
|
|
|
21
|
|
267
|
|
|
20
|
|
|
21
|
|
267
|
|
|
20
|
|
|
21
|
|
270
|
|
|
19
|
|
|
21
|
|
244
|
|
|
19
|
|
|
21
|
|
253
|
|
|
19
|
|
|
21
|
|
247
|
|
|
19
|
|
|
19
|
|
274
|
|
|
18
|
|
|
19
|
|
260
|
|
|
18
|
|
|
19
|
|
250
|
|
|
18
|
|
|
19
|
|
245
|
|
|
18
|
|
|
19
|
|
247
|
|
|
18
|
|
|
19
|
|
239
|
|
|
18
|
|
|
19
|
|
257
|
|
|
18
|
|
|
19
|
|
241
|
|
|
18
|
|
|
19
|
|
242
|
|
|
18
|
|
|
19
|
|
243
|
|
|
18
|
|
|
18
|
|
250
|
|
|
17
|
|
|
17
|
|
236
|
|
|
16
|
|
|
17
|
|
220
|
|
|
16
|
|
|
17
|
|
234
|
|
|
16
|
|
|
17
|
|
220
|
|
|
16
|
|
|
17
|
|
216
|
|
|
16
|
|
|
17
|
|
214
|
|
|
16
|
|
|
17
|
|
208
|
|
|
16
|
|
|
17
|
|
214
|
|
|
16
|
|
|
17
|
|
229
|
|
|
16
|
|
|
16
|
|
235
|
|
|
15
|
|
|
16
|
|
207
|
|
|
15
|
|
|
16
|
|
200
|
|
|
15
|
|
|
16
|
|
215
|
|
|
15
|
|
|
16
|
|
232
|
|
|
15
|
|
|
16
|
|
215
|
|
|
15
|
|
|
16
|
|
211
|
|
|
15
|
|
|
16
|
|
213
|
|
|
15
|
|
|
16
|
|
223
|
|
|
15
|
|
|
16
|
|
198
|
|
|
15
|
|
|
16
|
|
201
|
|
|
15
|
|
|
15
|
|
214
|
|
|
14
|
|
|
15
|
|
189
|
|
|
14
|
|
|
15
|
|
200
|
|
|
14
|
|
|
15
|
|
205
|
|
|
14
|
|
|
15
|
|
214
|
|
|
14
|
|
|
15
|
|
198
|
|
|
14
|
|
|
15
|
|
204
|
|
|
14
|
|
|
15
|
|
198
|
|
|
14
|
|
|
15
|
|
205
|
|
|
14
|
|
|
15
|
|
199
|
|
|
14
|
|
|
15
|
|
198
|
|
|
14
|
|
|
15
|
|
198
|
|
|
14
|
|
|
15
|
|
194
|
|
|
14
|
|
|
15
|
|
226
|
|
|
14
|
|
|
15
|
|
205
|
|
|
14
|
|
|
15
|
|
188
|
|
|
14
|
|
|
15
|
|
199
|
|
|
14
|
|
|
15
|
|
498
|
|
|
14
|
|
|
14
|
|
202
|
|
|
14
|
|
|
13
|
|
186
|
|
|
13
|
|
|
13
|
|
179
|
|
|
13
|
|
|
13
|
|
221
|
|
|
13
|
|
|
13
|
|
224
|
|
|
13
|
|
|
13
|
|
175
|
|
|
13
|
|
|
13
|
|
190
|
|
|
13
|
|
|
13
|
|
201
|
|
|
13
|
|
|
13
|
|
177
|
|
|
13
|
|
|
13
|
|
172
|
|
|
13
|
|
|
13
|
|
174
|
|
|
13
|
|
|
13
|
|
194
|
|
|
13
|
|
|
13
|
|
177
|
|
|
13
|
|
|
13
|
|
172
|
|
|
13
|
|
|
13
|
|
177
|
|
|
13
|
|
|
13
|
|
179
|
|
|
13
|
|
|
13
|
|
183
|
|
|
13
|
|
|
13
|
|
188
|
|
|
13
|
|
|
13
|
|
174
|
|
|
13
|
|
|
13
|
|
180
|
|
|
13
|
|
|
13
|
|
191
|
|
|
13
|
|
|
13
|
|
171
|
|
|
13
|
|
|
13
|
|
179
|
|
|
13
|
|
|
13
|
|
180
|
|
|
13
|
|
|
13
|
|
180
|
|
|
13
|
|
|
13
|
|
168
|
|
|
13
|
|
|
13
|
|
185
|
|
|
13
|
|
|
13
|
|
176
|
|
|
13
|
|
|
13
|
|
172
|
|
|
13
|
|
|
13
|
|
174
|
|
|
13
|
|
|
13
|
|
175
|
|
|
13
|
|
|
13
|
|
179
|
|
|
13
|
|
|
13
|
|
180
|
|
|
13
|
|
|
13
|
|
184
|
|
|
13
|
|
|
13
|
|
173
|
|
|
13
|
|
|
13
|
|
173
|
|
|
13
|
|
|
13
|
|
183
|
|
|
13
|
|
|
13
|
|
192
|
|
|
13
|
|
|
13
|
|
173
|
|
|
13
|
|
|
13
|
|
174
|
|
|
13
|
|
|
13
|
|
176
|
|
|
13
|
|
|
13
|
|
187
|
|
|
13
|
|
|
13
|
|
174
|
|
|
13
|
|
|
13
|
|
183
|
|
|
13
|
|
|
13
|
|
180
|
|
|
13
|
|
|
13
|
|
240
|
|
|
13
|
|
|
13
|
|
210
|
|
|
13
|
|
|
13
|
|
197
|
|
|
13
|
|
|
13
|
|
175
|
|
|
13
|
|
|
13
|
|
187
|
|
|
13
|
|
|
13
|
|
186
|
|
|
13
|
|
|
13
|
|
204
|
|
|
13
|
|
|
13
|
|
196
|
|
|
13
|
|
|
5
|
|
194
|
|
|
5
|
|
|
5
|
|
86
|
|
|
5
|
|
|
5
|
|
79
|
|
|
5
|
|
|
5
|
|
68
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
76
|
|
|
5
|
|
|
5
|
|
69
|
|
|
5
|
|
|
5
|
|
70
|
|
|
5
|
|
|
5
|
|
74
|
|
|
5
|
|
|
5
|
|
69
|
|
|
5
|
|
|
5
|
|
64
|
|
|
5
|
|
|
5
|
|
82
|
|
|
5
|
|
|
5
|
|
69
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
74
|
|
|
5
|
|
|
5
|
|
65
|
|
|
5
|
|
|
5
|
|
72
|
|
|
5
|
|
|
5
|
|
78
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
77
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
65
|
|
|
5
|
|
|
5
|
|
74
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
90
|
|
|
5
|
|
|
5
|
|
69
|
|
|
5
|
|
|
5
|
|
73
|
|
|
5
|
|
|
5
|
|
71
|
|
|
5
|
|
|
5
|
|
77
|
|
|
5
|
|
|
5
|
|
75
|
|
|
5
|
|
|
5
|
|
69
|
|
|
5
|
|
|
5
|
|
68
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
77
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
64
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
98
|
|
|
5
|
|
|
5
|
|
68
|
|
|
5
|
|
|
5
|
|
68
|
|
|
5
|
|
|
5
|
|
75
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
68
|
|
|
5
|
|
|
5
|
|
78
|
|
|
5
|
|
|
5
|
|
75
|
|
|
5
|
|
|
5
|
|
72
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
64
|
|
|
5
|
|
|
5
|
|
75
|
|
|
5
|
|
|
5
|
|
68
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
81
|
|
|
5
|
|
|
5
|
|
78
|
|
|
5
|
|
|
5
|
|
87
|
|
|
5
|
|
|
5
|
|
84
|
|
|
5
|
|
|
5
|
|
112
|
|
|
5
|
|
|
5
|
|
79
|
|
|
5
|
|
|
5
|
|
65
|
|
|
5
|
|
|
5
|
|
85
|
|
|
5
|
|
|
5
|
|
70
|
|
|
5
|
|
|
5
|
|
75
|
|
|
5
|
|
|
5
|
|
65
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
73
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
70
|
|
|
5
|
|
|
5
|
|
73
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
66
|
|
|
5
|
|
|
5
|
|
72
|
|
|
5
|
|
|
5
|
|
68
|
|
|
5
|
|
|
5
|
|
70
|
|
|
5
|
|
|
5
|
|
67
|
|
|
5
|
|
|
5
|
|
75
|
|
|
5
|
|
|
5
|
|
65
|
|
|
5
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64
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64
|
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66
|
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78
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|
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69
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75
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|
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67
|
|
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55
|
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|
|
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|
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105
|
|
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|
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|
|
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|
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79
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|
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|
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54
|
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64
|
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|
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|
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|
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4
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4
|
|
54
|
|
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1
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13
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1
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1
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13
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1
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1
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13
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1
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1
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12
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1
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1
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14
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1
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1
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14
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1
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1
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13
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1
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1
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14
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1
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1
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1
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1
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14
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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1
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21
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1
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13
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1
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33
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1
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18
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17
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1
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1
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12
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1
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12
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14
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1
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14
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1
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14
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1
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1
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13
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1
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1
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14
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1
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1
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14
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1
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1
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14
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1
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1
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13
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1
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1
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13
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1
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13
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1
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1
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13
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1
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1
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13
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1
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1
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17
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1
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12
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13
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13
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1
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13
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1
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1
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18
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1
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1
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13
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1
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1
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14
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1
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1
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21
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1
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1
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19
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1
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1
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19
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1
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1
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19
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1
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1
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14
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1
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1
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24
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1
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1
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22
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1
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1
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21
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1
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1
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13
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13
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14
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1
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1
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21
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1
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1
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14
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1
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1
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14
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1
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1
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14
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1
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1
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14
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1
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1
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|
23
|
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1
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1
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13
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1
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1
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14
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1
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1
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13
|
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1
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1
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14
|
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1
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1
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14
|
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1
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1
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|
13
|
|
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1
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|
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1
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|
16
|
|
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1
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1
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|
13
|
|
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1
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1
|
|
14
|
|
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1
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1
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|
13
|
|
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1
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1
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|
17
|
|
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1
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|
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1
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|
16
|
|
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1
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|
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1
|
|
13
|
|
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1
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1
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|
13
|
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1
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1
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|
14
|
|
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1
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1
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|
13
|
|
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1
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1
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|
14
|
|
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1
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1
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|
14
|
|
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1
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1
|
|
13
|
|
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1
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1
|
|
14
|
|
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1
|
|
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1
|
|
13
|
|
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1
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|
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1
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|
14
|
|
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1
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|
|
1
|
|
15
|
|
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1
|
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1
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|
12
|
|
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1
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1
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|
14
|
|
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1
|
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|
1
|
|
14
|
|
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1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
12
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
12
|
|
|
1
|
|
|
1
|
|
12
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
14
|
|
|
1
|
|
|
1
|
|
13
|
|
|
1
|
|
|
1
|
|
14
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
1
|
|
|
|
40
|
|
|
|
|
|
|
. ( $reversed ? "\$other $symbol \$self" |
41
|
|
|
|
|
|
|
: "\$self $symbol \$other" ); |
42
|
|
|
|
|
|
|
} |
43
|
|
|
|
|
|
|
elsif($ovl_prefix =~ $sym_regexp) { |
44
|
6
|
|
|
|
|
81
|
my $bits = (caller 0)[9]; |
45
|
6
|
|
|
|
|
92
|
$val |
46
|
|
|
|
|
|
|
= eval "BEGIN{\${^WARNING_BITS} = \$bits}$symbol \$self"; |
47
|
|
|
|
|
|
|
} |
48
|
|
|
|
|
|
|
elsif($symbol eq 'neg') { |
49
|
6
|
|
|
|
|
81
|
return -$self; |
50
|
|
|
|
|
|
|
} |
51
|
|
|
|
|
|
|
elsif($symbol eq 'atan2') { |
52
|
6
|
|
|
|
|
85
|
return atan2 $self, $other; |
53
|
|
|
|
|
|
|
} |
54
|
|
|
|
|
|
|
elsif($symbol eq '<>') { |
55
|
6
|
|
|
|
|
79
|
return <$self>; |
56
|
|
|
|
|
|
|
} |
57
|
|
|
|
|
|
|
else { |
58
|
6
|
|
|
|
|
94
|
die "Oh no! Something is terribly wrong with " . |
59
|
|
|
|
|
|
|
"JE::LValue's overloading mechanism. It can't deal " . |
60
|
|
|
|
|
|
|
"with < $symbol >. Please send a bug report."; |
61
|
|
|
|
|
|
|
} |
62
|
13406
|
50
|
|
|
|
29635
|
$@ and die $@; |
63
|
13406
|
|
|
|
|
14517
|
$@ = $at; |
64
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13406
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|
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|
66103
|
return $val; |
65
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|
}, |
66
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|
'@{}' => sub { |
67
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338838
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50
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|
338840
|
|
1004040
|
caller eq __PACKAGE__ and return shift; |
68
|
6
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81
|
$_[0]->get; |
69
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}, |
70
|
109
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109
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|
2707
|
'%{}' => 'get', '&{}' => 'get', '*{}' => 'get', '${}' => 'get'; |
|
109
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1772
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109
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1631
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71
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72
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|
sub new { |
73
|
152396
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|
|
152398
|
1
|
189323
|
my ($class, $obj, $prop) = @_; # prop is a string |
74
|
152396
|
100
|
100
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|
|
890174
|
if(defined blessed $obj && can $obj 'id'){ |
75
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144943
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|
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|
269437
|
my $id = $obj->id; |
76
|
144943
|
100
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100
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|
|
546584
|
$id eq 'null' || $id eq 'undef' and die |
77
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|
new JE::Object::Error::TypeError $obj->global, |
78
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|
add_line_number |
79
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|
|
$obj->to_string->value . " has no properties" |
80
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|
.", not even one named $prop"; |
81
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|
} |
82
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152394
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|
792930
|
bless [$obj, $prop], $class; |
83
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|
} |
84
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|
85
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|
|
sub get { |
86
|
142138
|
|
|
142140
|
1
|
553308
|
my $base = (my $self = shift)->[0]; |
87
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142138
|
100
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|
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|
369254
|
defined blessed $base or die new |
88
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|
|
JE::Object::Error::ReferenceError $$base, add_line_number |
89
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|
"The variable $$self[1] has not been declared"; |
90
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91
|
142121
|
|
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|
181148
|
my $val = $base->prop($self->[1]); |
92
|
142121
|
100
|
|
|
|
385971
|
defined $val ? $val : $base->global->undefined; |
93
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|
|
# If we have a Perl undef, then the property does not |
94
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|
# not exist, and we have to return a JS undefined val. |
95
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|
} |
96
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|
97
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|
sub set { |
98
|
15655
|
|
|
15657
|
1
|
30324
|
my $obj = (my $self = shift)->[0]; |
99
|
15655
|
100
|
|
|
|
40922
|
defined blessed $obj or $obj = $$self[0] = $$obj; |
100
|
15655
|
|
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|
20306
|
$obj->prop($self->[1], shift); |
101
|
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|
} |
102
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103
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|
sub call { |
104
|
22137
|
|
|
22139
|
1
|
39888
|
my $base_obj = (my $self = shift)->[0]; |
105
|
22137
|
|
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|
37653
|
my $prop = $self->get; # dies here if $base_obj is not blessed |
106
|
22137
|
50
|
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|
37283
|
defined $prop or |
107
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|
die new JE::Object::Error::TypeError $base_obj->global, |
108
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|
add_line_number "The object's '" . $self->[1] . |
109
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|
"' property (undefined) is not a function"; |
110
|
22137
|
100
|
|
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|
68708
|
$prop->can('apply') or |
111
|
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|
|
die new JE::Object::Error::TypeError $base_obj->global, |
112
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|
add_line_number "The object's '" . $self->[1] . |
113
|
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|
|
"' property ($prop) is not a function"; |
114
|
22135
|
|
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|
54918
|
$prop->apply($base_obj, @_); |
115
|
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|
} |
116
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|
117
|
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|
|
sub base { |
118
|
375
|
|
|
377
|
1
|
3342
|
my $base = $_[0][0]; |
119
|
375
|
100
|
|
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|
1870
|
defined blessed $base ? $base : () |
120
|
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|
|
} |
121
|
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|
122
|
221
|
|
|
223
|
1
|
463
|
sub property { shift->[1] } |
123
|
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|
124
|
|
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|
|
|
our $AUTOLOAD; |
125
|
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|
126
|
|
|
|
|
|
|
sub AUTOLOAD { |
127
|
29247
|
|
|
29249
|
|
159275
|
my($method) = $AUTOLOAD =~ /([^:]+)\z/; |
128
|
|
|
|
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|
129
|
29247
|
50
|
|
|
|
59246
|
return if $method eq 'DESTROY'; |
130
|
|
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|
131
|
|
|
|
|
|
|
#my $l = $_[0]; my $ret, my @ret;; |
132
|
107
|
|
|
109
|
|
48836
|
no warnings 'uninitialized'; |
|
107
|
|
|
|
|
266
|
|
|
107
|
|
|
|
|
15556
|
|
133
|
|
|
|
|
|
|
#eval { |
134
|
|
|
|
|
|
|
# $ret = |
135
|
29247
|
|
|
|
|
50401
|
return shift->get->$method(@_); # ~~~ Maybe I should use goto |
136
|
|
|
|
|
|
|
# to remove AUTOLOAD from |
137
|
|
|
|
|
|
|
# the call stack. |
138
|
|
|
|
|
|
|
#1} or die add_line_number $l->base . ' ' . $l->property . ' ' . $l->get . #' ' . ref $_->get . qq': $@'; |
139
|
|
|
|
|
|
|
#return $ret; |
140
|
|
|
|
|
|
|
} |
141
|
|
|
|
|
|
|
|
142
|
|
|
|
|
|
|
sub can { # I think this returns a *canned* lvalue, as opposed to a fresh |
143
|
|
|
|
|
|
|
# one. :-) |
144
|
|
|
|
|
|
|
|
145
|
6
|
0
|
0
|
8
|
0
|
91
|
!ref $_[0] || $_[1] eq 'DESTROY' and goto &UNIVERSAL::can; |
146
|
|
|
|
|
|
|
|
147
|
6
|
0
|
|
|
|
80
|
&UNIVERSAL::can || do { |
148
|
6
|
0
|
|
|
|
87
|
my $sub = (my $obj = shift->get)->can(@_) |
149
|
|
|
|
|
|
|
or return undef; |
150
|
6
|
|
|
8
|
|
162
|
sub { splice @'_, 0, 1, $obj; goto &$sub } |
|
6
|
|
|
|
|
104
|
|
151
|
6
|
|
|
|
|
91
|
}; |
152
|
|
|
|
|
|
|
} |
153
|
|
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|
|
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|
|
154
|
|
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|
|
155
|
|
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|
|
|
156
|
|
|
|
|
|
|
=head1 NAME |
157
|
|
|
|
|
|
|
|
158
|
|
|
|
|
|
|
JE::LValue - JavaScript lvalue class |
159
|
|
|
|
|
|
|
|
160
|
|
|
|
|
|
|
=head1 SYNOPSIS |
161
|
|
|
|
|
|
|
|
162
|
|
|
|
|
|
|
use JE::LValue; |
163
|
|
|
|
|
|
|
|
164
|
|
|
|
|
|
|
$lv = new JE::LValue $some_obj, 'property_name'; |
165
|
|
|
|
|
|
|
|
166
|
|
|
|
|
|
|
$lv->get; # get property |
167
|
|
|
|
|
|
|
$lv->set($value) # set property |
168
|
|
|
|
|
|
|
|
169
|
|
|
|
|
|
|
$lv->some_other_method # same as $lv->get->some_other_method |
170
|
|
|
|
|
|
|
|
171
|
|
|
|
|
|
|
=head1 DESCRIPTION |
172
|
|
|
|
|
|
|
|
173
|
|
|
|
|
|
|
This class implements JavaScript lvalues (called "Reference Types" by the |
174
|
|
|
|
|
|
|
ECMAScript specification). |
175
|
|
|
|
|
|
|
|
176
|
|
|
|
|
|
|
=head1 METHODS AND OVERLOADING |
177
|
|
|
|
|
|
|
|
178
|
|
|
|
|
|
|
If a method is called that is not listed here, it will be passed to the |
179
|
|
|
|
|
|
|
property referenced by the lvalue. (See the last item in the L, |
180
|
|
|
|
|
|
|
above.) For this reason, you should never call C on a |
181
|
|
|
|
|
|
|
JE::LValue, but, rather, call it as a method (C<< $lv->can(...) >>), unless |
182
|
|
|
|
|
|
|
you really know what you are doing. |
183
|
|
|
|
|
|
|
|
184
|
|
|
|
|
|
|
Similarly, if you try to use an overloaded operator, it will be passed on |
185
|
|
|
|
|
|
|
to |
186
|
|
|
|
|
|
|
the object that the lvalue references, such that C is the same |
187
|
|
|
|
|
|
|
as calling C<< !$lvalue->get >>. |
188
|
|
|
|
|
|
|
|
189
|
|
|
|
|
|
|
=over 4 |
190
|
|
|
|
|
|
|
|
191
|
|
|
|
|
|
|
=item $lv = new JE::LValue $obj, $property |
192
|
|
|
|
|
|
|
|
193
|
|
|
|
|
|
|
Creates an lvalue/reference with $obj as the base object and $property |
194
|
|
|
|
|
|
|
as the property name. If $obj is undefined or null, a TypeError is thrown. |
195
|
|
|
|
|
|
|
To create a lvalue that has no base object, and which will throw a |
196
|
|
|
|
|
|
|
ReferenceError when |
197
|
|
|
|
|
|
|
C<< ->get >> is |
198
|
|
|
|
|
|
|
called and create a global property upon invocation of C<< ->set >>, pass |
199
|
|
|
|
|
|
|
an unblessed reference to a global object as the first argument. (This is |
200
|
|
|
|
|
|
|
used by bare identifiers in JS expressions.) |
201
|
|
|
|
|
|
|
|
202
|
|
|
|
|
|
|
=item $lv->get |
203
|
|
|
|
|
|
|
|
204
|
|
|
|
|
|
|
Gets the value of the property. |
205
|
|
|
|
|
|
|
|
206
|
|
|
|
|
|
|
=item $lv->set($value) |
207
|
|
|
|
|
|
|
|
208
|
|
|
|
|
|
|
Sets the property to $value and returns $value. If the lvalue has no base |
209
|
|
|
|
|
|
|
object, the global object will become its base object automatically. |
210
|
|
|
|
|
|
|
Whether the lvalue object itself is modified in the latter case is |
211
|
|
|
|
|
|
|
not set in stone yet. (Currently it is modified, but that may change.) |
212
|
|
|
|
|
|
|
|
213
|
|
|
|
|
|
|
=item $lv->call(@args) |
214
|
|
|
|
|
|
|
|
215
|
|
|
|
|
|
|
If the property is a function, this calls the function with the |
216
|
|
|
|
|
|
|
base object as the 'this' value. |
217
|
|
|
|
|
|
|
|
218
|
|
|
|
|
|
|
=item $lv->base |
219
|
|
|
|
|
|
|
|
220
|
|
|
|
|
|
|
Returns the base object. If there isn't any, it returns undef or an empty |
221
|
|
|
|
|
|
|
list, depending on context. |
222
|
|
|
|
|
|
|
|
223
|
|
|
|
|
|
|
=item $lv->property |
224
|
|
|
|
|
|
|
|
225
|
|
|
|
|
|
|
Returns the property name. |
226
|
|
|
|
|
|
|
|
227
|
|
|
|
|
|
|
=back |
228
|
|
|
|
|
|
|
|
229
|
|
|
|
|
|
|
=cut |
230
|
|
|
|
|
|
|
|
231
|
|
|
|
|
|
|
|
232
|
|
|
|
|
|
|
|
233
|
|
|
|
|
|
|
|
234
|
|
|
|
|
|
|
1; |