line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
|
|
|
|
|
|
|
package Perl::Critic::Policy::TryTiny::RequireCatch; |
2
|
|
|
|
|
|
|
$Perl::Critic::Policy::TryTiny::RequireCatch::VERSION = '0.003'; |
3
|
1
|
|
|
1
|
|
711
|
use strict; |
|
1
|
|
|
|
|
9
|
|
|
1
|
|
|
|
|
26
|
|
4
|
1
|
|
|
1
|
|
4
|
use warnings; |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
24
|
|
5
|
1
|
|
|
1
|
|
4
|
use utf8; |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
6
|
|
6
|
|
|
|
|
|
|
|
7
|
|
|
|
|
|
|
# ABSTRACT: Always include a "catch" block when using "try" |
8
|
|
|
|
|
|
|
|
9
|
1
|
|
|
1
|
|
18
|
use Readonly; |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
47
|
|
10
|
1
|
|
|
1
|
|
5
|
use Perl::Critic::Utils qw( :severities :classification :ppi ); |
|
1
|
|
|
|
|
2
|
|
|
1
|
|
|
|
|
67
|
|
11
|
|
|
|
|
|
|
|
12
|
1
|
|
|
1
|
|
363
|
use base 'Perl::Critic::Policy'; |
|
1
|
|
|
|
|
3
|
|
|
1
|
|
|
|
|
315
|
|
13
|
|
|
|
|
|
|
|
14
|
|
|
|
|
|
|
Readonly::Scalar my $DESC => "Try::Tiny \"try\" invoked without a corresponding \"catch\" block"; |
15
|
|
|
|
|
|
|
Readonly::Scalar my $EXPL => "Try::Tiny's \"try\" without a \"catch\" block will swallow exceptions. Use an empty block if this is intended."; |
16
|
|
|
|
|
|
|
|
17
|
|
|
|
|
|
|
sub supported_parameters { |
18
|
6
|
|
|
6
|
0
|
31511
|
return (); |
19
|
|
|
|
|
|
|
} |
20
|
|
|
|
|
|
|
|
21
|
|
|
|
|
|
|
sub default_severity { |
22
|
3
|
|
|
3
|
1
|
59
|
return $SEVERITY_HIGH; |
23
|
|
|
|
|
|
|
} |
24
|
|
|
|
|
|
|
|
25
|
|
|
|
|
|
|
sub default_themes { |
26
|
0
|
|
|
0
|
1
|
0
|
return qw(bugs); |
27
|
|
|
|
|
|
|
} |
28
|
|
|
|
|
|
|
|
29
|
|
|
|
|
|
|
sub prepare_to_scan_document { |
30
|
6
|
|
|
6
|
1
|
70270
|
my $self = shift; |
31
|
6
|
|
|
|
|
16
|
my $document = shift; |
32
|
|
|
|
|
|
|
|
33
|
|
|
|
|
|
|
return $document->find_any(sub { |
34
|
36
|
|
|
36
|
|
505
|
my $element = $_[1]; |
35
|
36
|
100
|
|
|
|
146
|
return 0 if ! $element->isa('PPI::Statement::Include'); |
36
|
5
|
|
|
|
|
22
|
my @children = grep { $_->significant } $element->children; |
|
20
|
|
|
|
|
83
|
|
37
|
5
|
50
|
33
|
|
|
63
|
if ($children[1] && $children[1]->isa('PPI::Token::Word') && $children[1] eq 'Try::Tiny') { |
|
|
|
33
|
|
|
|
|
38
|
5
|
|
|
|
|
117
|
return 1; |
39
|
|
|
|
|
|
|
} |
40
|
0
|
|
|
|
|
0
|
return 0; |
41
|
6
|
|
|
|
|
58
|
}); |
42
|
|
|
|
|
|
|
} |
43
|
|
|
|
|
|
|
|
44
|
|
|
|
|
|
|
sub applies_to { |
45
|
5
|
|
|
5
|
1
|
201
|
return 'PPI::Token::Word'; |
46
|
|
|
|
|
|
|
} |
47
|
|
|
|
|
|
|
|
48
|
|
|
|
|
|
|
sub violates { |
49
|
25
|
|
|
25
|
1
|
689
|
my ($self, $elem, undef) = @_; |
50
|
|
|
|
|
|
|
|
51
|
25
|
100
|
|
|
|
65
|
return if $elem->content ne 'try'; |
52
|
5
|
50
|
|
|
|
40
|
return if ! is_function_call($elem); |
53
|
|
|
|
|
|
|
|
54
|
5
|
50
|
|
|
|
2011
|
my $try_block = $elem->snext_sibling() or return; |
55
|
5
|
|
|
|
|
153
|
my $sib = $try_block->snext_sibling(); |
56
|
5
|
100
|
100
|
|
|
204
|
if (!$sib || $sib->content ne 'catch') { |
57
|
3
|
|
|
|
|
26
|
return $self->violation($DESC, $EXPL, $elem); |
58
|
|
|
|
|
|
|
} |
59
|
2
|
|
|
|
|
21
|
return; |
60
|
|
|
|
|
|
|
} |
61
|
|
|
|
|
|
|
|
62
|
|
|
|
|
|
|
1; |
63
|
|
|
|
|
|
|
|
64
|
|
|
|
|
|
|
__END__ |
65
|
|
|
|
|
|
|
|
66
|
|
|
|
|
|
|
=pod |
67
|
|
|
|
|
|
|
|
68
|
|
|
|
|
|
|
=encoding UTF-8 |
69
|
|
|
|
|
|
|
|
70
|
|
|
|
|
|
|
=head1 NAME |
71
|
|
|
|
|
|
|
|
72
|
|
|
|
|
|
|
Perl::Critic::Policy::TryTiny::RequireCatch - Always include a "catch" block when using "try" |
73
|
|
|
|
|
|
|
|
74
|
|
|
|
|
|
|
=head1 VERSION |
75
|
|
|
|
|
|
|
|
76
|
|
|
|
|
|
|
version 0.003 |
77
|
|
|
|
|
|
|
|
78
|
|
|
|
|
|
|
=head1 DESCRIPTION |
79
|
|
|
|
|
|
|
|
80
|
|
|
|
|
|
|
Programmers from other programming languages may assume that the following code |
81
|
|
|
|
|
|
|
does not swallow exceptions: |
82
|
|
|
|
|
|
|
|
83
|
|
|
|
|
|
|
use Try::Tiny; |
84
|
|
|
|
|
|
|
try { |
85
|
|
|
|
|
|
|
# ... |
86
|
|
|
|
|
|
|
} |
87
|
|
|
|
|
|
|
finally { |
88
|
|
|
|
|
|
|
# ... |
89
|
|
|
|
|
|
|
}; |
90
|
|
|
|
|
|
|
|
91
|
|
|
|
|
|
|
However, Try::Tiny's implementation always swallows exceptions unless a catch |
92
|
|
|
|
|
|
|
block has been specified. |
93
|
|
|
|
|
|
|
|
94
|
|
|
|
|
|
|
The programmer should always include a catch block. The block may be empty, to |
95
|
|
|
|
|
|
|
indicate that exceptions are deliberately ignored. |
96
|
|
|
|
|
|
|
|
97
|
|
|
|
|
|
|
use Try::Tiny; |
98
|
|
|
|
|
|
|
try { |
99
|
|
|
|
|
|
|
# ... |
100
|
|
|
|
|
|
|
} |
101
|
|
|
|
|
|
|
catch { |
102
|
|
|
|
|
|
|
# ... |
103
|
|
|
|
|
|
|
} |
104
|
|
|
|
|
|
|
finally { |
105
|
|
|
|
|
|
|
# ... |
106
|
|
|
|
|
|
|
}; |
107
|
|
|
|
|
|
|
|
108
|
|
|
|
|
|
|
This policy assumes that L<Try::Tiny> is being used, and it doesn't run if it |
109
|
|
|
|
|
|
|
can't find it being imported. |
110
|
|
|
|
|
|
|
|
111
|
|
|
|
|
|
|
=head1 CONFIGURATION |
112
|
|
|
|
|
|
|
|
113
|
|
|
|
|
|
|
This Policy is not configurable except for the standard options. |
114
|
|
|
|
|
|
|
|
115
|
|
|
|
|
|
|
=head1 AUTHOR |
116
|
|
|
|
|
|
|
|
117
|
|
|
|
|
|
|
David D Lowe <flimm@cpan.org> |
118
|
|
|
|
|
|
|
|
119
|
|
|
|
|
|
|
=head1 COPYRIGHT AND LICENSE |
120
|
|
|
|
|
|
|
|
121
|
|
|
|
|
|
|
This software is copyright (c) 2017 by Lokku <cpan@lokku.com>. |
122
|
|
|
|
|
|
|
|
123
|
|
|
|
|
|
|
This is free software; you can redistribute it and/or modify it under |
124
|
|
|
|
|
|
|
the same terms as the Perl 5 programming language system itself. |
125
|
|
|
|
|
|
|
|
126
|
|
|
|
|
|
|
=cut |