line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
|
|
|
|
|
|
|
package Perlude::Open; |
2
|
12
|
|
|
12
|
|
45
|
use strict; |
|
12
|
|
|
|
|
13
|
|
|
12
|
|
|
|
|
342
|
|
3
|
12
|
|
|
12
|
|
36
|
use warnings; |
|
12
|
|
|
|
|
14
|
|
|
12
|
|
|
|
|
240
|
|
4
|
12
|
|
|
12
|
|
97
|
use 5.10.0; |
|
12
|
|
|
|
|
24
|
|
|
12
|
|
|
|
|
407
|
|
5
|
12
|
|
|
12
|
|
38
|
use Exporter qw< import >; |
|
12
|
|
|
|
|
12
|
|
|
12
|
|
|
|
|
2462
|
|
6
|
|
|
|
|
|
|
our @EXPORT = qw< open_file >; |
7
|
|
|
|
|
|
|
|
8
|
|
|
|
|
|
|
sub _source_for_nargs (_) { |
9
|
4
|
50
|
|
4
|
|
7
|
my $nargs = shift or die; |
10
|
4
|
|
|
|
|
5
|
my $args = join ',', map {'$a'.$_} 1..$nargs; |
|
10
|
|
|
|
|
16
|
|
11
|
4
|
|
|
|
|
266
|
sprintf 'sub { |
12
|
|
|
|
|
|
|
my (%s) = @_; |
13
|
|
|
|
|
|
|
open my $fh, %s |
14
|
|
|
|
|
|
|
or die "$! while open_file %s"; |
15
|
|
|
|
|
|
|
$fh; }', ($args)x3; |
16
|
|
|
|
|
|
|
}; |
17
|
|
|
|
|
|
|
|
18
|
|
|
|
|
|
|
sub _prepare_special_forms { |
19
|
4
|
|
|
|
|
6
|
+{ map { |
20
|
1
|
|
|
1
|
|
2
|
my $cb = eval _source_for_nargs; |
21
|
4
|
50
|
|
|
|
8
|
$@ and die $@; |
22
|
4
|
|
|
|
|
9
|
$_ => $cb; } 1..4 }; |
23
|
|
|
|
|
|
|
} |
24
|
|
|
|
|
|
|
|
25
|
|
|
|
|
|
|
sub _callback_for_nargs(_) { |
26
|
|
|
|
|
|
|
# build callbacks for number of arguments from 1 to 4 |
27
|
2
|
|
|
2
|
|
3
|
state $open_with = _prepare_special_forms; |
28
|
|
|
|
|
|
|
# the 4 arguments form callback should work for 4 and more. |
29
|
|
|
|
|
|
|
# i copy this ref on demand whenever i see a new number of arguments |
30
|
2
|
|
33
|
|
|
40
|
$open_with->{ +@_ } ||= $open_with->{4}; |
31
|
|
|
|
|
|
|
} |
32
|
|
|
|
|
|
|
|
33
|
|
|
|
|
|
|
sub open_file { |
34
|
|
|
|
|
|
|
# if the file (can be $_) is open, just return |
35
|
4
|
100
|
33
|
4
|
0
|
426
|
return shift if ref ($_[0]||=$_); |
36
|
2
|
|
|
|
|
5
|
( _callback_for_nargs +@_ )->(@_) |
37
|
|
|
|
|
|
|
} |