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author | Gurusamy Sarathy <gsar@cpan.org> | 1998-05-18 09:40:58 +0000 |
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committer | Gurusamy Sarathy <gsar@cpan.org> | 1998-05-18 09:40:58 +0000 |
commit | 3666098248b43282bda1153dae2f4c1e4af38d09 (patch) | |
tree | 9c69a323f89cdd81b231dc630b0eaf134225da7a /lib/strict.pm | |
parent | 9e6b2b00f0190751b970ece3db7033405cb08ca5 (diff) | |
parent | d2719217c9b7910115cef7ea0c16d68e6b286cf7 (diff) | |
download | perl-3666098248b43282bda1153dae2f4c1e4af38d09.tar.gz |
[asperl] integrate mainline changes (untested)
p4raw-id: //depot/asperl@1010
Diffstat (limited to 'lib/strict.pm')
-rw-r--r-- | lib/strict.pm | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/lib/strict.pm b/lib/strict.pm index 8492e933fd..940e8bf7ff 100644 --- a/lib/strict.pm +++ b/lib/strict.pm @@ -38,6 +38,7 @@ use symbolic references (see L<perlref>). =item C<strict vars> This generates a compile-time error if you access a variable that wasn't +declared via C<use vars>, localized via C<my()> or wasn't fully qualified. Because this is to avoid variable suicide problems and subtle dynamic scoping issues, a merely local() variable isn't good enough. See L<perlfunc/my> and @@ -48,6 +49,10 @@ L<perlfunc/local>. my $foo = 10; # ok, my() var local $foo = 9; # blows up + package Cinna; + use vars qw/ $bar /; # Declares $bar in current package + $bar = 'HgS'; # ok, global declared via pragma + The local() generated a compile-time error because you just touched a global name without fully qualifying it. @@ -67,19 +72,22 @@ appears in curly braces or on the left hand side of the "=E<gt>" symbol. =back -See L<perlmod/Pragmatic Modules>. +See L<perlmodlib/Pragmatic Modules>. =cut +$strict::VERSION = "1.01"; + +my %bitmask = ( +refs => 0x00000002, +subs => 0x00000200, +vars => 0x00000400 +); + sub bits { my $bits = 0; - my $sememe; - foreach $sememe (@_) { - $bits |= 0x00000002, next if $sememe eq 'refs'; - $bits |= 0x00000200, next if $sememe eq 'subs'; - $bits |= 0x00000400, next if $sememe eq 'vars'; - } + foreach my $s (@_){ $bits |= $bitmask{$s} || 0; }; $bits; } |