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;

no warnings; # *sigh*

use Carp qw(croak);

use AnyEvent ();

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};
 
   defined fileno $arg{fh}
      or croak "AnyEvent->io called with illegal fh argument '$arg{fh}'";
   -f $arg{fh}
      and croak "AnyEvent->io called with fh argument pointing to a file";
   delete $arg{fh};
 
   $arg{poll} =~ /^[rw]$/
      or croak "AnyEvent->io called with illegal poll argument '$arg{poll}'";
   delete $arg{poll};
 
   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};
 
   eval "require POSIX; 0 < &POSIX::SIG$arg{signal}"
      or croak "AnyEvent->signal called with illegal signal name '$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 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:	1.11
Committed:	Tue Apr 14 04:27:32 2009 UTC (15 years, 2 months ago) by root
Branch:	MAIN
CVS Tags:	rel-4_352
Changes since 1.10:	+3 -3 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	no warnings; # sigh
27
28	use Carp qw(croak);
29
30	use AnyEvent ();
31
32	AnyEvent::post_detect {
33	# assume the first ISA member is the implementation
34	# # and link us in before it in the chain.
35	my $MODEL = shift @AnyEvent::ISA;
36	unshift @ISA, $MODEL;
37	unshift @AnyEvent::ISA, AnyEvent::Strict::
38	};
39
40	sub io {
41	my $class = shift;
42	my %arg = @_;
43
44	ref $arg{cb}
45	or croak "AnyEvent->io called with illegal cb argument '$arg{cb}'";
46	delete $arg{cb};
47
48	defined fileno $arg{fh}
49	or croak "AnyEvent->io called with illegal fh argument '$arg{fh}'";
50	-f $arg{fh}
51	and croak "AnyEvent->io called with fh argument pointing to a file";
52	delete $arg{fh};
53
54	$arg{poll} =~ /^[rw]$/
55	or croak "AnyEvent->io called with illegal poll argument '$arg{poll}'";
56	delete $arg{poll};
57
58	croak "AnyEvent->io called with unsupported parameter(s) " . join ", ", keys %arg
59	if keys %arg;
60
61	$class->SUPER::io (@_)
62	}
63
64	sub timer {
65	my $class = shift;
66	my %arg = @_;
67
68	ref $arg{cb}
69	or croak "AnyEvent->timer called with illegal cb argument '$arg{cb}'";
70	delete $arg{cb};
71
72	exists $arg{after}
73	or croak "AnyEvent->timer called without mandatory 'after' parameter";
74	delete $arg{after};
75
76	!$arg{interval} or $arg{interval} > 0
77	or croak "AnyEvent->timer called with illegal interval argument '$arg{interval}'";
78	delete $arg{interval};
79
80	croak "AnyEvent->timer called with unsupported parameter(s) " . join ", ", keys %arg
81	if keys %arg;
82
83	$class->SUPER::timer (@_)
84	}
85
86	sub signal {
87	my $class = shift;
88	my %arg = @_;
89
90	ref $arg{cb}
91	or croak "AnyEvent->signal called with illegal cb argument '$arg{cb}'";
92	delete $arg{cb};
93
94	eval "require POSIX; 0 < &POSIX::SIG$arg{signal}"
95	or croak "AnyEvent->signal called with illegal signal name '$arg{signal}'";
96	delete $arg{signal};
97
98	croak "AnyEvent->signal called with unsupported parameter(s) " . join ", ", keys %arg
99	if keys %arg;
100
101	$class->SUPER::signal (@_)
102	}
103
104	sub child {
105	my $class = shift;
106	my %arg = @_;
107
108	ref $arg{cb}
109	or croak "AnyEvent->child called with illegal cb argument '$arg{cb}'";
110	delete $arg{cb};
111
112	$arg{pid} =~ /^-?\d+$/
113	or croak "AnyEvent->child called with malformed pid value '$arg{pid}'";
114	delete $arg{pid};
115
116	croak "AnyEvent->child called with unsupported parameter(s) " . join ", ", keys %arg
117	if keys %arg;
118
119	$class->SUPER::child (@_)
120	}
121
122	sub condvar {
123	my $class = shift;
124	my %arg = @_;
125
126	!exists $arg{cb} or ref $arg{cb}
127	or croak "AnyEvent->condvar called with illegal cb argument '$arg{cb}'";
128	delete $arg{cb};
129
130	croak "AnyEvent->condvar called with unsupported parameter(s) " . join ", ", keys %arg
131	if keys %arg;
132
133	$class->SUPER::condvar (@_)
134	}
135
136	sub time {
137	my $class = shift;
138
139	@_
140	and croak "AnyEvent->time wrongly called with paramaters";
141
142	$class->SUPER::time (@_)
143	}
144
145	sub now {
146	my $class = shift;
147
148	@_
149	and croak "AnyEvent->now wrongly called with paramaters";
150
151	$class->SUPER::now (@_)
152	}
153
154	1;
155
156	=head1 AUTHOR
157
158	Marc Lehmann <schmorp@schmorp.de>
159	http://home.schmorp.de/
160
161	=cut
162