4 use warnings FATAL => 'all';
6 our $VERSION = '1.001001'; # 1.1.1
10 last unless defined && !ref && int != 1;
11 die "Major version specified as $_ - this is strictures version 1";
13 # disable this since Foo->VERSION(undef) correctly returns the version
14 # and that can happen either if our caller passes undef explicitly or
15 # because the for above autovivified $_[1] - I could make it stop but
16 # it's pointless since we don't want to blow up if the caller does
17 # something valid either.
18 no warnings 'uninitialized';
19 shift->SUPER::VERSION(@_);
24 warnings->import(FATAL => 'all');
25 my $do_indirect = do {
26 if (exists $ENV{PERL_STRICTURES_EXTRA}) {
27 $ENV{PERL_STRICTURES_EXTRA}
29 !!($0 =~ /^x?t\/.*(?:load|compile|coverage|use_ok).*\.t$/
30 and (-e '.git' or -e '.svn'))
34 if (eval { require indirect; 1 }) {
35 indirect->unimport(':fatal');
37 die "strictures.pm extra testing active but couldn't load indirect.pm
38 Extra testing is auto-enabled in checkouts only, so if you're the author
39 of a strictures using module you should 'cpan indirect' but the module
40 is not required by your users.
41 Error loading indirect.pm was: $@";
51 strictures - turn on strict and make all warnings fatal
60 use warnings FATAL => 'all';
62 except when called from a file where $0 matches:
64 /^x?t\/.*(?:load|compile|coverage|use_ok).*\.t$/
66 and when either '.git' or '.svn' is present in the current directory (with
67 the intention of only forcing extra tests on the author side) - or when the
68 PERL_STRICTURES_EXTRA environment variable is set, in which case
75 use warnings FATAL => 'all';
78 Note that _EXTRA may at some point add even more tests, with only a minor
79 version increase, but any changes to the effect of 'use strictures' in
80 normal mode will involve a major version bump.
82 Be aware: THIS MEANS INDIRECT IS REQUIRED FOR AUTHORS OF STRICTURES USING
83 CODE - but not by end users thereof.
87 I've been writing the equivalent of this module at the top of my code for
88 about a year now. I figured it was time to make it shorter.
90 Things like the importer in 'use Moose' don't help me because they turn
91 warnings on but don't make them fatal - which from my point of view is
92 useless because I want an exception to tell me my code isn't warnings clean.
94 Any time I see a warning from my code, that indicates a mistake.
96 Any time my code encounters a mistake, I want a crash - not spew to STDERR
97 and then unknown (and probably undesired) subsequent behaviour.
99 I also want to ensure that obvious coding mistakes, like indirect object
100 syntax (and not so obvious mistakes that cause things to accidentally compile
101 as such) get caught, but not at the cost of an XS dependency and not at the
102 cost of blowing things up on another machine.
104 Therefore, strictures turns on indirect checking only when it thinks it's
105 running in a compilation (or pod coverage) test - though if this causes
106 undesired behaviour this can be overriden by setting the
107 PERL_STRICTURES_EXTRA environment variable.
109 If additional useful author side checks come to mind, I'll add them to the
110 _EXTRA code path only - this will result in a minor version increase (i.e.
111 1.000000 to 1.001000 (1.1.0) or similar). Any fixes only to the mechanism of
112 this code will result in a subversion increas (i.e. 1.000000 to 1.000001
115 If the behaviour of 'use strictures' in normal mode changes in any way, that
116 will constitute a major version increase - and the code already checks
117 when its version is tested to ensure that
121 will continue to only introduce the current set of strictures even if 2.0 is
128 This method does the setup work described above in L</DESCRIPTION>
132 This method traps the strictures->VERSION(1) call produced by a use line
133 with a version number on it and does the version check.
135 =head1 COMMUNITY AND SUPPORT
139 irc.perl.org #toolchain
141 (or bug 'mst' in query on there or freenode)
143 =head2 Git repository
145 Gitweb is on http://git.shadowcat.co.uk/ and the clone URL is:
147 git clone git://git.shadowcat.co.uk/p5sagit/strictures.git
151 Matt S. Trout <mst@shadowcat.co.uk>
155 None required yet. Maybe this module is perfect (hahahahaha ...).
159 Copyright (c) 2010 the strictures L</AUTHOR> and L</CONTRIBUTORS>
164 This library is free software and may be distributed under the same terms