lib/AnyEvent/Strict.pm

=head1 NAME

AnyEvent::Strict - force strict mode on for the whole process

=head1 SYNOPSIS

   use AnyEvent::Strict;
   # strict mode now switched on

=head1 DESCRIPTION

This module implements AnyEvent's strict mode.

Loading it makes AnyEvent check all arguments to AnyEvent-methods, at the
expense of being slower (often the argument checking takes longer than the
actual function).

Normally, you don't load this module yourself but instead use it
indirectly via the C<PERL_ANYEVENT_STRICT> environment variable (see
L<AnyEvent>). However, this module can be loaded at any time.

=cut

package AnyEvent::Strict;

use Carp qw(croak);
use Fcntl ();

use AnyEvent (); BEGIN { AnyEvent::common_sense }

our @ISA;

AnyEvent::post_detect {
   # assume the first ISA member is the implementation
   # # and link us in before it in the chain.
   my $MODEL = shift @AnyEvent::ISA;
   unshift @ISA, $MODEL;
   unshift @AnyEvent::ISA, AnyEvent::Strict::
};

sub io {
   my $class = shift;
   my %arg = @_;

   ref $arg{cb}
      or croak "AnyEvent->io called with illegal cb argument '$arg{cb}'";
   delete $arg{cb};
 
   $arg{poll} =~ /^[rw]$/
      or croak "AnyEvent->io called with illegal poll argument '$arg{poll}'";

   if (defined fileno $arg{fh} or ref $arg{fh} or $arg{fh} !~ /^\s*\d+\s*$/) {
      defined fileno $arg{fh}
         or croak "AnyEvent->io called with illegal fh argument '$arg{fh}'";
   } else {
      $arg{fh} = AnyEvent::_dupfh $arg{poll}, $arg{fh};
   }

   -f $arg{fh}
      and croak "AnyEvent->io called with fh argument pointing to a file";

   delete $arg{poll};
   delete $arg{fh};
 
   croak "AnyEvent->io called with unsupported parameter(s) " . join ", ", keys %arg
      if keys %arg;

   $class->SUPER::io (@_)
}

sub timer {
   my $class = shift;
   my %arg = @_;

   ref $arg{cb}
      or croak "AnyEvent->timer called with illegal cb argument '$arg{cb}'";
   delete $arg{cb};
 
   exists $arg{after}
      or croak "AnyEvent->timer called without mandatory 'after' parameter";
   delete $arg{after};
 
   !$arg{interval} or $arg{interval} > 0
      or croak "AnyEvent->timer called with illegal interval argument '$arg{interval}'";
   delete $arg{interval};
 
   croak "AnyEvent->timer called with unsupported parameter(s) " . join ", ", keys %arg
      if keys %arg;

   $class->SUPER::timer (@_)
}

sub signal {
   my $class = shift;
   my %arg = @_;

   ref $arg{cb}
      or croak "AnyEvent->signal called with illegal cb argument '$arg{cb}'";
   delete $arg{cb};
 
   defined AnyEvent::Base::sig2num $arg{signal} and $arg{signal} == 0
      or croak "AnyEvent->signal called with illegal signal name '$arg{signal}'";
   delete $arg{signal};
 
   croak "AnyEvent->signal called with unsupported parameter(s) " . join ", ", keys %arg
      if keys %arg;

   $class->SUPER::signal (@_)
}

sub child {
   my $class = shift;
   my %arg = @_;

   ref $arg{cb}
      or croak "AnyEvent->child called with illegal cb argument '$arg{cb}'";
   delete $arg{cb};
 
   $arg{pid} =~ /^-?\d+$/
      or croak "AnyEvent->child called with malformed pid value '$arg{pid}'";
   delete $arg{pid};
 
   croak "AnyEvent->child called with unsupported parameter(s) " . join ", ", keys %arg
      if keys %arg;

   $class->SUPER::child (@_)
}

sub idle {
   my $class = shift;
   my %arg = @_;

   ref $arg{cb}
      or croak "AnyEvent->idle called with illegal cb argument '$arg{cb}'";
   delete $arg{cb};
 
   croak "AnyEvent->idle called with unsupported parameter(s) " . join ", ", keys %arg
      if keys %arg;

   $class->SUPER::idle (@_)
}

sub condvar {
   my $class = shift;
   my %arg = @_;

   !exists $arg{cb} or ref $arg{cb}
      or croak "AnyEvent->condvar called with illegal cb argument '$arg{cb}'";
   delete $arg{cb};
 
   croak "AnyEvent->condvar called with unsupported parameter(s) " . join ", ", keys %arg
      if keys %arg;

   $class->SUPER::condvar (@_)
}

sub time {
   my $class = shift;

   @_
      and croak "AnyEvent->time wrongly called with paramaters";

   $class->SUPER::time (@_)
}

sub now {
   my $class = shift;

   @_
      and croak "AnyEvent->now wrongly called with paramaters";

   $class->SUPER::now (@_)
}

1;

=head1 AUTHOR

 Marc Lehmann <schmorp@schmorp.de>
 http://home.schmorp.de/

=cut

Revision:	1.19
Committed:	Wed Jul 29 13:15:55 2009 UTC (14 years, 10 months ago) by root
Branch:	MAIN
CVS Tags:	rel-5_21, rel-5_24, rel-5_12, rel-5_1, rel-5_0, rel-5_2, rel-5_22, rel-5_201, rel-5_202, rel-5_11, rel-5_23, rel-5_01, rel-5_111, rel-5_112, rel-4_91, rel-4_9
Changes since 1.18:	+1 -1 lines
Log Message:	* empty log message *
#	Content
1	=head1 NAME
2
3	AnyEvent::Strict - force strict mode on for the whole process
4
5	=head1 SYNOPSIS
6
7	use AnyEvent::Strict;
8	# strict mode now switched on
9
10	=head1 DESCRIPTION
11
12	This module implements AnyEvent's strict mode.
13
14	Loading it makes AnyEvent check all arguments to AnyEvent-methods, at the
15	expense of being slower (often the argument checking takes longer than the
16	actual function).
17
18	Normally, you don't load this module yourself but instead use it
19	indirectly via the C<PERL_ANYEVENT_STRICT> environment variable (see
20	L<AnyEvent>). However, this module can be loaded at any time.
21
22	=cut
23
24	package AnyEvent::Strict;
25
26	use Carp qw(croak);
27	use Fcntl ();
28
29	use AnyEvent (); BEGIN { AnyEvent::common_sense }
30
31	our @ISA;
32
33	AnyEvent::post_detect {
34	# assume the first ISA member is the implementation
35	# # and link us in before it in the chain.
36	my $MODEL = shift @AnyEvent::ISA;
37	unshift @ISA, $MODEL;
38	unshift @AnyEvent::ISA, AnyEvent::Strict::
39	};
40
41	sub io {
42	my $class = shift;
43	my %arg = @_;
44
45	ref $arg{cb}
46	or croak "AnyEvent->io called with illegal cb argument '$arg{cb}'";
47	delete $arg{cb};
48
49	$arg{poll} =~ /^[rw]$/
50	or croak "AnyEvent->io called with illegal poll argument '$arg{poll}'";
51
52	if (defined fileno $arg{fh} or ref $arg{fh} or $arg{fh} !~ /^\s\d+\s$/) {
53	defined fileno $arg{fh}
54	or croak "AnyEvent->io called with illegal fh argument '$arg{fh}'";
55	} else {
56	$arg{fh} = AnyEvent::_dupfh $arg{poll}, $arg{fh};
57	}
58
59	-f $arg{fh}
60	and croak "AnyEvent->io called with fh argument pointing to a file";
61
62	delete $arg{poll};
63	delete $arg{fh};
64
65	croak "AnyEvent->io called with unsupported parameter(s) " . join ", ", keys %arg
66	if keys %arg;
67
68	$class->SUPER::io (@_)
69	}
70
71	sub timer {
72	my $class = shift;
73	my %arg = @_;
74
75	ref $arg{cb}
76	or croak "AnyEvent->timer called with illegal cb argument '$arg{cb}'";
77	delete $arg{cb};
78
79	exists $arg{after}
80	or croak "AnyEvent->timer called without mandatory 'after' parameter";
81	delete $arg{after};
82
83	!$arg{interval} or $arg{interval} > 0
84	or croak "AnyEvent->timer called with illegal interval argument '$arg{interval}'";
85	delete $arg{interval};
86
87	croak "AnyEvent->timer called with unsupported parameter(s) " . join ", ", keys %arg
88	if keys %arg;
89
90	$class->SUPER::timer (@_)
91	}
92
93	sub signal {
94	my $class = shift;
95	my %arg = @_;
96
97	ref $arg{cb}
98	or croak "AnyEvent->signal called with illegal cb argument '$arg{cb}'";
99	delete $arg{cb};
100
101	defined AnyEvent::Base::sig2num $arg{signal} and $arg{signal} == 0
102	or croak "AnyEvent->signal called with illegal signal name '$arg{signal}'";
103	delete $arg{signal};
104
105	croak "AnyEvent->signal called with unsupported parameter(s) " . join ", ", keys %arg
106	if keys %arg;
107
108	$class->SUPER::signal (@_)
109	}
110
111	sub child {
112	my $class = shift;
113	my %arg = @_;
114
115	ref $arg{cb}
116	or croak "AnyEvent->child called with illegal cb argument '$arg{cb}'";
117	delete $arg{cb};
118
119	$arg{pid} =~ /^-?\d+$/
120	or croak "AnyEvent->child called with malformed pid value '$arg{pid}'";
121	delete $arg{pid};
122
123	croak "AnyEvent->child called with unsupported parameter(s) " . join ", ", keys %arg
124	if keys %arg;
125
126	$class->SUPER::child (@_)
127	}
128
129	sub idle {
130	my $class = shift;
131	my %arg = @_;
132
133	ref $arg{cb}
134	or croak "AnyEvent->idle called with illegal cb argument '$arg{cb}'";
135	delete $arg{cb};
136
137	croak "AnyEvent->idle called with unsupported parameter(s) " . join ", ", keys %arg
138	if keys %arg;
139
140	$class->SUPER::idle (@_)
141	}
142
143	sub condvar {
144	my $class = shift;
145	my %arg = @_;
146
147	!exists $arg{cb} or ref $arg{cb}
148	or croak "AnyEvent->condvar called with illegal cb argument '$arg{cb}'";
149	delete $arg{cb};
150
151	croak "AnyEvent->condvar called with unsupported parameter(s) " . join ", ", keys %arg
152	if keys %arg;
153
154	$class->SUPER::condvar (@_)
155	}
156
157	sub time {
158	my $class = shift;
159
160	@_
161	and croak "AnyEvent->time wrongly called with paramaters";
162
163	$class->SUPER::time (@_)
164	}
165
166	sub now {
167	my $class = shift;
168
169	@_
170	and croak "AnyEvent->now wrongly called with paramaters";
171
172	$class->SUPER::now (@_)
173	}
174
175	1;
176
177	=head1 AUTHOR
178
179	Marc Lehmann <schmorp@schmorp.de>
180	http://home.schmorp.de/
181
182	=cut
183