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1 | =head1 NAME |
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2 | |
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3 | AnyEvent::Strict - force strict mode on for the whole process |
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4 | |
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5 | =head1 SYNOPSIS |
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6 | |
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7 | use AnyEvent::Strict; |
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8 | # strict mode now switched on |
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9 | |
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10 | =head1 DESCRIPTION |
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11 | |
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12 | This module implements AnyEvent's strict mode. |
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13 | |
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14 | Loading it makes AnyEvent check all arguments to AnyEvent-methods, at the |
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15 | expense of being slower (often the argument checking takes longer than the |
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16 | actual function). |
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17 | |
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18 | Normally, you don't load this module yourself but instead use it |
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19 | indirectly via the C<PERL_ANYEVENT_STRICT> environment variable (see |
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20 | L<AnyEvent>). However, this module can be loaded at any time. |
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21 | |
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22 | =cut |
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23 | |
1 | package AnyEvent::Strict; |
24 | package AnyEvent::Strict; |
2 | |
25 | |
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26 | no warnings; # *sigh* |
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27 | |
3 | use Carp qw(croak); |
28 | use Carp qw(croak); |
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29 | |
4 | use AnyEvent (); |
30 | use AnyEvent (); |
5 | |
31 | |
6 | AnyEvent::post_detect { |
32 | AnyEvent::post_detect { |
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33 | # assume the first ISA member is the implementation |
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34 | # # and link us in before it in the chain. |
7 | my $MODEL = shift @AnyEvent::ISA; |
35 | my $MODEL = shift @AnyEvent::ISA; |
8 | unshift @ISA, $MODEL; |
36 | unshift @ISA, $MODEL; |
9 | unshift @AnyEvent::ISA, AnyEvent::Strict:: |
37 | unshift @AnyEvent::ISA, AnyEvent::Strict:: |
10 | }; |
38 | }; |
11 | |
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12 | # supply checks for argument validity for many functions |
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13 | |
39 | |
14 | sub io { |
40 | sub io { |
15 | my $class = shift; |
41 | my $class = shift; |
16 | my %arg = @_; |
42 | my %arg = @_; |
17 | |
43 | |
18 | ref $arg{cb} |
44 | ref $arg{cb} |
19 | or croak "AnyEvent->io called with illegal cb argument '$arg{cb}'"; |
45 | or croak "AnyEvent->io called with illegal cb argument '$arg{cb}'"; |
20 | delete $arg{cb}; |
46 | delete $arg{cb}; |
21 | |
47 | |
22 | fileno $arg{fh} |
48 | defined fileno $arg{fh} |
23 | or croak "AnyEvent->io called with illegal fh argument '$arg{fh}'"; |
49 | or croak "AnyEvent->io called with illegal fh argument '$arg{fh}'"; |
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50 | -f $arg{fh} |
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51 | and croak "AnyEvent->io called with fh argument pointing to a file"; |
24 | delete $arg{fh}; |
52 | delete $arg{fh}; |
25 | |
53 | |
26 | $arg{poll} =~ /^[rw]$/ |
54 | $arg{poll} =~ /^[rw]$/ |
27 | or croak "AnyEvent->io called with illegal poll argument '$arg{poll}'"; |
55 | or croak "AnyEvent->io called with illegal poll argument '$arg{poll}'"; |
28 | delete $arg{poll}; |
56 | delete $arg{poll}; |
… | |
… | |
61 | |
89 | |
62 | ref $arg{cb} |
90 | ref $arg{cb} |
63 | or croak "AnyEvent->signal called with illegal cb argument '$arg{cb}'"; |
91 | or croak "AnyEvent->signal called with illegal cb argument '$arg{cb}'"; |
64 | delete $arg{cb}; |
92 | delete $arg{cb}; |
65 | |
93 | |
66 | eval "require POSIX; defined &POSIX::SIG$arg{signal}" |
94 | eval "require POSIX; 0 < &POSIX::SIG$arg{signal}" |
67 | or croak "AnyEvent->signal called with illegal signal name '$arg{signal}'"; |
95 | or croak "AnyEvent->signal called with illegal signal name '$arg{signal}'"; |
68 | delete $arg{signal}; |
96 | delete $arg{signal}; |
69 | |
97 | |
70 | croak "AnyEvent->signal called with unsupported parameter(s) " . join ", ", keys %arg |
98 | croak "AnyEvent->signal called with unsupported parameter(s) " . join ", ", keys %arg |
71 | if keys %arg; |
99 | if keys %arg; |
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121 | and croak "AnyEvent->now wrongly called with paramaters"; |
149 | and croak "AnyEvent->now wrongly called with paramaters"; |
122 | |
150 | |
123 | $class->SUPER::now (@_) |
151 | $class->SUPER::now (@_) |
124 | } |
152 | } |
125 | |
153 | |
126 | 1 |
154 | 1; |
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155 | |
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156 | =head1 AUTHOR |
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157 | |
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158 | Marc Lehmann <schmorp@schmorp.de> |
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159 | http://home.schmorp.de/ |
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160 | |
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161 | =cut |
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162 | |