X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fstrict.pm;h=f9d60af154e2208ed1f822fcaacb4a2b37514260;hb=c9abbd5d6e768b3d2c9536a3c39ca67438643c9d;hp=6f6028cad4ecb7593ee0e5eb60cd47541d895373;hpb=cb1a09d0194fed9b905df7b04a4bc031d354609d;p=p5sagit%2Fp5-mst-13.2.git diff --git a/lib/strict.pm b/lib/strict.pm index 6f6028c..f9d60af 100644 --- a/lib/strict.pm +++ b/lib/strict.pm @@ -38,7 +38,8 @@ use symbolic references (see L). =item C This generates a compile-time error if you access a variable that wasn't -localized via C or wasn't fully qualified. Because this is to avoid +declared via "our" or C, +localized via C, 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 and L. @@ -48,14 +49,21 @@ L. my $foo = 10; # ok, my() var local $foo = 9; # blows up + package Cinna; + our $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. +Because of their special use by sort(), the variables $a and $b are +exempted from this check. + =item C This disables the poetry optimization, generating a compile-time error if you try to use a bareword identifier that's not a subroutine, unless it -appears in curly braces or on the left hand side of the "=>" symbol. +appears in curly braces or on the left hand side of the "=E" symbol. use strict 'subs'; @@ -67,18 +75,22 @@ appears in curly braces or on the left hand side of the "=>" symbol. =back -See L. +See L. =cut +$strict::VERSION = "1.01"; + +my %bitmask = ( +refs => 0x00000002, +subs => 0x00000200, +vars => 0x00000400 +); + sub bits { my $bits = 0; - foreach $sememe (@_) { - $bits |= 0x00000002 if $sememe eq 'refs'; - $bits |= 0x00000200 if $sememe eq 'subs'; - $bits |= 0x00000400 if $sememe eq 'vars'; - } + foreach my $s (@_){ $bits |= $bitmask{$s} || 0; }; $bits; }