File | /opt/wise/lib/perl5/5.10.0/strict.pm | Statements Executed | 470 | Total Time | 0.001404 seconds |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine | |
---|---|---|---|---|---|---|
80 | 80 | 75 | 0.00109 | 0.00111 | strict:: | import |
33 | 3 | 1 | 0.00057 | 0.00057 | strict:: | bits |
34 | 34 | 22 | 0.00050 | 0.00099 | strict:: | unimport |
Line | Stmts. | Exclusive Time | Avg. | Code |
---|---|---|---|---|
1 | package strict; | |||
2 | ||||
3 | 1 | 1.0e-6 | 1.0e-6 | $strict::VERSION = "1.04"; |
4 | ||||
5 | # Verify that we're called correctly so that strictures will work. | |||
6 | 1 | 5.9e-5 | 5.9e-5 | unless ( __FILE__ =~ /(^|[\/\\])\Q${\__PACKAGE__}\E\.pmc?$/ ) { |
7 | # Can't use Carp, since Carp uses us! | |||
8 | my (undef, $f, $l) = caller; | |||
9 | die("Incorrect use of pragma '${\__PACKAGE__}' at $f line $l.\n"); | |||
10 | } | |||
11 | ||||
12 | 1 | 5.0e-6 | 5.0e-6 | my %bitmask = ( |
13 | refs => 0x00000002, | |||
14 | subs => 0x00000200, | |||
15 | vars => 0x00000400 | |||
16 | ); | |||
17 | ||||
18 | sub bits { | |||
19 | 237 | 0.00042 | 1.8e-6 | my $bits = 0; |
20 | my @wrong; | |||
21 | foreach my $s (@_) { | |||
22 | push @wrong, $s unless exists $bitmask{$s}; | |||
23 | $bits |= $bitmask{$s} || 0; | |||
24 | } | |||
25 | if (@wrong) { | |||
26 | require Carp; | |||
27 | Carp::croak("Unknown 'strict' tag(s) '@wrong'"); | |||
28 | } | |||
29 | $bits; | |||
30 | } | |||
31 | ||||
32 | 1 | 4.9e-5 | 4.9e-5 | my $default_bits = bits(qw(refs subs vars)); # spent 54µs making 1 call to strict::bits |
33 | ||||
34 | # spent 1.11ms (1.09+27µs) within strict::import which was called 80 times, avg 14µs/call:
# once (53µs+0) at line 170 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Cwd.pm
# once (47µs+0) at line 16 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Compress/Zlib.pm
# once (46µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/Base/Common.pm
# once (37µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Spawn.pm
# once (32µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/File/Glob.pm
# once (30µs+0) at line 4 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/re.pm
# once (9µs+15µs) by vars::BEGIN at line 8 of /opt/wise/lib/perl5/5.10.0/vars.pm
# once (23µs+0) at line 2 of /wise/base/deliv/dev/lib/perl/WISE/IPACTbl.pm
# once (11µs+12µs) at line 3 of /opt/wise/lib/perl5/5.10.0/base.pm
# once (23µs+0) at line 2 of /wise/base/static/lib/perl5/site_perl/5.10.0/Astro/Coord.pm
# once (22µs+0) at line 4 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Uncompress/Base.pm
# once (21µs+0) at line 9 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Scalar/Util.pm
# once (21µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Ingest/NAIF.pm
# once (17µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Ingest/Decom.pm
# once (17µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Ingest/Seq.pm
# once (17µs+0) at line 5 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/threads/shared.pm
# once (16µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/UtilsLight.pm
# once (16µs+0) at line 4 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Uncompress/RawInflate.pm
# once (16µs+0) at line 5 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/Zlib/Extra.pm
# once (14µs+0) at line 3 of /wise/base/deliv/dev/bin/wdate
# once (14µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Wrap.pm
# once (14µs+0) by DBD::_::common::BEGIN at line 1314 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (13µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Ingest/SurveyPlan.pm
# once (13µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/x86_64-linux-thread-multi/WISE/IPACTblXS.pm
# once (13µs+0) at line 2 of /wise/base/deliv/dev/lib/perl/WISE/CoUtils.pm
# once (13µs+0) at line 12 of /wise/base/static/lib/perl5/site_perl/5.10.0/Time/Timezone.pm
# once (12µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/Adapter/Deflate.pm
# once (12µs+0) at line 58 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Fcntl.pm
# once (12µs+0) at line 2 of /wise/base/static/lib/perl5/site_perl/5.10.0/Astro/Time.pm
# once (12µs+0) at line 9 of /wise/base/deliv/dev/lib/perl/WISE/FITSIO.pm
# once (11µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Params.pm
# once (11µs+0) at line 4 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/Clone.pm
# once (11µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/IOUtils.pm
# once (11µs+0) at line 12 of /opt/wise/lib/perl5/5.10.0/Text/Tabs.pm
# once (11µs+0) at line 6 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/Gzip.pm
# once (11µs+0) at line 3 of /wise/base/static/lib/perl5/site_perl/5.10.0/File/Slurp.pm
# once (11µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Ingest/HK.pm
# once (11µs+0) at line 4 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/Astro/FITS/CFITSIO.pm
# once (11µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/x86_64-linux-thread-multi/WISE/Ingest/NAIFXS.pm
# once (11µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Ingest/GroundTrack.pm
# once (11µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Time/HiRes.pm
# once (11µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Uncompress/Adapter/Inflate.pm
# once (10µs+0) at line 11 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Compress/Raw/Zlib.pm
# once (10µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Pars.pm
# once (10µs+0) at line 34 of /opt/wise/lib/perl5/5.10.0/Math/Complex.pm
# once (10µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Utils.pm
# once (10µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/Gzip/Constants.pm
# once (10µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/BandUtils.pm
# once (10µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/x86_64-linux-thread-multi/WISE/CoUtilsXS.pm
# once (10µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/constant.pm
# once (10µs+0) at line 5 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Config.pm
# once (10µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/Exporter/Heavy.pm
# once (10µs+0) at line 9 of /wise/base/deliv/dev/lib/perl/FITSIO.pm
# once (9µs+0) at line 9 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/List/Util.pm
# once (9µs+0) at line 4 of /opt/wise/lib/perl5/5.10.0/File/Path.pm
# once (9µs+0) at line 6 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/Base.pm
# once (9µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/File/GlobMapper.pm
# once (9µs+0) at line 2 of /wise/base/deliv/dev/lib/perl/x86_64-linux-thread-multi/WISE/Ingest/Rice.pm
# once (9µs+0) at line 258 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Handle.pm
# once (9µs+0) at line 1 of /wise/base/deliv/dev/lib/perl/WISE/Time.pm
# once (9µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/File/Spec.pm
# once (9µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/AutoLoader.pm
# once (9µs+0) at line 3 of /wise/base/deliv/dev/lib/perl/WISE/Release.pm
# once (9µs+0) at line 271 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (9µs+0) by DBD::_::st::BEGIN at line 1766 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (9µs+0) by DBD::_::dr::BEGIN at line 1403 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (9µs+0) at line 128 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/File.pm
# once (9µs+0) at line 497 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/Base/Common.pm
# once (9µs+0) at line 4 of /opt/wise/lib/perl5/5.10.0/FileHandle.pm
# once (9µs+0) at line 5 of /wise/base/static/lib/perl5/site_perl/5.10.0/WISE/Env.pm
# once (8µs+0) at line 8 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Uncompress/Gunzip.pm
# once (8µs+0) at line 7 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO.pm
# once (8µs+0) at line 3 of /opt/wise/lib/perl5/5.10.0/File/Spec/Unix.pm
# once (8µs+0) at line 6 of /opt/wise/lib/perl5/5.10.0/Time/Local.pm
# once (8µs+0) at line 2 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/POSIX.pm
# once (8µs+0) by DBD::_::db::BEGIN at line 1465 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (8µs+0) at line 5 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Compress/RawDeflate.pm
# once (7µs+0) at line 99 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Seekable.pm
# once (7µs+0) at line 50 of /opt/wise/lib/perl5/5.10.0/File/Basename.pm
# once (7µs+0) by lib::BEGIN at line 8 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/lib.pm | |||
35 | 160 | 0.00048 | 3.0e-6 | shift; |
36 | $^H |= @_ ? bits(@_) : $default_bits; # spent 27µs making 2 calls to strict::bits, avg 14µs/call | |||
37 | } | |||
38 | ||||
39 | # spent 991µs (504+487) within strict::unimport which was called 34 times, avg 29µs/call:
# once (32µs+31µs) by Compress::Raw::Zlib::AUTOLOAD at line 73 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Compress/Raw/Zlib.pm
# once (16µs+39µs) by IO::Handle::BEGIN or IO::Handle::constant at line 611 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/IO/Handle.pm
# once (14µs+41µs) by Fcntl::BEGIN or Fcntl::AUTOLOAD at line 239 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Fcntl.pm
# once (37µs+15µs) by Compress::Zlib::AUTOLOAD at line 49 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Compress/Zlib.pm
# once (37µs+11µs) by DBI::BEGIN or DBI::installed_versions at line 1001 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (22µs+26µs) by File::Spec::Unix::BEGIN or File::Spec::Unix::_tmpdir at line 144 of /opt/wise/lib/perl5/5.10.0/File/Spec/Unix.pm
# once (24µs+14µs) by WISE::UtilsLight::OO::BEGIN or WISE::UtilsLight::OO::AUTOLOAD at line 1388 of /wise/base/deliv/dev/lib/perl/WISE/UtilsLight.pm
# once (10µs+23µs) by constant::import at line 38 of /opt/wise/lib/perl5/5.10.0/constant.pm
# once (16µs+17µs) by threads::shared::BEGIN or threads::shared::import at line 52 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/threads/shared.pm
# once (17µs+14µs) by WISE::Utils::BEGIN or WISE::Utils::lockit at line 1535 of /wise/base/deliv/dev/lib/perl/WISE/Utils.pm
# once (16µs+15µs) by Cwd::BEGIN at line 731 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Cwd.pm
# once (11µs+20µs) by WISE::Time::OO::BEGIN or WISE::Time::OO::AUTOLOAD at line 698 of /wise/base/deliv/dev/lib/perl/WISE/Time.pm
# once (16µs+14µs) by WISE::Wrap::OO::BEGIN or WISE::Wrap::OO::AUTOLOAD at line 2034 of /wise/base/deliv/dev/lib/perl/WISE/Wrap.pm
# once (15µs+15µs) at line 4 of /opt/wise/lib/perl5/5.10.0/Exporter/Heavy.pm
# once (9µs+19µs) by Config::BEGIN or Config::import at line 31 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Config.pm
# once (11µs+16µs) by DBI::CLONE at line 518 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (12µs+14µs) by Time::HiRes::BEGIN or Time::HiRes::AUTOLOAD at line 42 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/Time/HiRes.pm
# once (12µs+14µs) by WISE::Utils::OO::BEGIN or WISE::Utils::OO::AUTOLOAD at line 1993 of /wise/base/deliv/dev/lib/perl/WISE/Utils.pm
# once (17µs+9µs) by DBI::_set_isa at line 838 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (14µs+11µs) by AutoLoader::can at line 65 of /opt/wise/lib/perl5/5.10.0/AutoLoader.pm
# once (10µs+14µs) by DBI::_load_class at line 935 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (11µs+12µs) by FileHandle::BEGIN at line 46 of /opt/wise/lib/perl5/5.10.0/FileHandle.pm
# once (10µs+12µs) by DBI::connect or DBI::__ANON__[/wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm:703] at line 663 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (10µs+12µs) by AutoLoader::AUTOLOAD at line 30 of /opt/wise/lib/perl5/5.10.0/AutoLoader.pm
# once (11µs+10µs) by constant::BEGIN or constant::import at line 101 of /opt/wise/lib/perl5/5.10.0/constant.pm
# once (10µs+11µs) by File::Path::BEGIN or File::Path::_rmtree at line 265 of /opt/wise/lib/perl5/5.10.0/File/Path.pm
# once (11µs+9µs) by AutoLoader::BEGIN or AutoLoader::unimport at line 199 of /opt/wise/lib/perl5/5.10.0/AutoLoader.pm
# once (10µs+10µs) by DBI::install_driver at line 775 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (9µs+10µs) by DBI::setup_driver at line 809 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (10µs+9µs) by AutoLoader::import at line 153 of /opt/wise/lib/perl5/5.10.0/AutoLoader.pm
# once (13µs+0) at line 267 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/DBI.pm
# once (11µs+0) by Astro::FITS::CFITSIO::BEGIN or Astro::FITS::CFITSIO::AUTOLOAD at line 779 of /wise/base/static/lib/perl5/site_perl/5.10.0/x86_64-linux-thread-multi/Astro/FITS/CFITSIO.pm
# once (10µs+0) by WISE::Env::_export at line 267 of /wise/base/static/lib/perl5/site_perl/5.10.0/WISE/Env.pm
# once (10µs+0) by POSIX::AUTOLOAD at line 40 of /opt/wise/lib/perl5/5.10.0/x86_64-linux-thread-multi/POSIX.pm | |||
40 | 68 | 0.00038 | 5.6e-6 | shift; |
41 | $^H &= ~ (@_ ? bits(@_) : $default_bits); # spent 487µs making 30 calls to strict::bits, avg 16µs/call | |||
42 | } | |||
43 | ||||
44 | 1 | 1.4e-5 | 1.4e-5 | 1; |
45 | __END__ | |||
46 | ||||
47 | =head1 NAME | |||
48 | ||||
49 | strict - Perl pragma to restrict unsafe constructs | |||
50 | ||||
51 | =head1 SYNOPSIS | |||
52 | ||||
53 | use strict; | |||
54 | ||||
55 | use strict "vars"; | |||
56 | use strict "refs"; | |||
57 | use strict "subs"; | |||
58 | ||||
59 | use strict; | |||
60 | no strict "vars"; | |||
61 | ||||
62 | =head1 DESCRIPTION | |||
63 | ||||
64 | If no import list is supplied, all possible restrictions are assumed. | |||
65 | (This is the safest mode to operate in, but is sometimes too strict for | |||
66 | casual programming.) Currently, there are three possible things to be | |||
67 | strict about: "subs", "vars", and "refs". | |||
68 | ||||
69 | =over 6 | |||
70 | ||||
71 | =item C<strict refs> | |||
72 | ||||
73 | This generates a runtime error if you | |||
74 | use symbolic references (see L<perlref>). | |||
75 | ||||
76 | use strict 'refs'; | |||
77 | $ref = \$foo; | |||
78 | print $$ref; # ok | |||
79 | $ref = "foo"; | |||
80 | print $$ref; # runtime error; normally ok | |||
81 | $file = "STDOUT"; | |||
82 | print $file "Hi!"; # error; note: no comma after $file | |||
83 | ||||
84 | There is one exception to this rule: | |||
85 | ||||
86 | $bar = \&{'foo'}; | |||
87 | &$bar; | |||
88 | ||||
89 | is allowed so that C<goto &$AUTOLOAD> would not break under stricture. | |||
90 | ||||
91 | ||||
92 | =item C<strict vars> | |||
93 | ||||
94 | This generates a compile-time error if you access a variable that wasn't | |||
95 | declared via C<our> or C<use vars>, | |||
96 | localized via C<my()>, or wasn't fully qualified. Because this is to avoid | |||
97 | variable suicide problems and subtle dynamic scoping issues, a merely | |||
98 | local() variable isn't good enough. See L<perlfunc/my> and | |||
99 | L<perlfunc/local>. | |||
100 | ||||
101 | use strict 'vars'; | |||
102 | $X::foo = 1; # ok, fully qualified | |||
103 | my $foo = 10; # ok, my() var | |||
104 | local $foo = 9; # blows up | |||
105 | ||||
106 | package Cinna; | |||
107 | our $bar; # Declares $bar in current package | |||
108 | $bar = 'HgS'; # ok, global declared via pragma | |||
109 | ||||
110 | The local() generated a compile-time error because you just touched a global | |||
111 | name without fully qualifying it. | |||
112 | ||||
113 | Because of their special use by sort(), the variables $a and $b are | |||
114 | exempted from this check. | |||
115 | ||||
116 | =item C<strict subs> | |||
117 | ||||
118 | This disables the poetry optimization, generating a compile-time error if | |||
119 | you try to use a bareword identifier that's not a subroutine, unless it | |||
120 | is a simple identifier (no colons) and that it appears in curly braces or | |||
121 | on the left hand side of the C<< => >> symbol. | |||
122 | ||||
123 | use strict 'subs'; | |||
124 | $SIG{PIPE} = Plumber; # blows up | |||
125 | $SIG{PIPE} = "Plumber"; # just fine: quoted string is always ok | |||
126 | $SIG{PIPE} = \&Plumber; # preferred form | |||
127 | ||||
128 | =back | |||
129 | ||||
130 | See L<perlmodlib/Pragmatic Modules>. | |||
131 | ||||
132 | =head1 HISTORY | |||
133 | ||||
134 | C<strict 'subs'>, with Perl 5.6.1, erroneously permitted to use an unquoted | |||
135 | compound identifier (e.g. C<Foo::Bar>) as a hash key (before C<< => >> or | |||
136 | inside curlies), but without forcing it always to a literal string. | |||
137 | ||||
138 | Starting with Perl 5.8.1 strict is strict about its restrictions: | |||
139 | if unknown restrictions are used, the strict pragma will abort with | |||
140 | ||||
141 | Unknown 'strict' tag(s) '...' | |||
142 | ||||
143 | As of version 1.04 (Perl 5.10), strict verifies that it is used as | |||
144 | "strict" to avoid the dreaded Strict trap on case insensitive file | |||
145 | systems. | |||
146 | ||||
147 | =cut |