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| author | Perl 5 Porters <perl5-porters@africa.nicoh.com> | 1996-07-10 23:22:48 +0000 |
|---|---|---|
| committer | Charles Bailey <bailey@genetics.upenn.edu> | 1996-07-10 23:22:48 +0000 |
| commit | c6f23971087b60e76ee381271f91c188d85e1db7 (patch) | |
| tree | c89d139ccbd862aaf9bee4a15dc532f03069afcb /lib/vars.pm | |
| parent | 4a2eeee972073f14f452b0d672c9d9c9ad2d6463 (diff) | |
| download | perl-c6f23971087b60e76ee381271f91c188d85e1db7.tar.gz | |
Add explanation of common usage
Diffstat (limited to 'lib/vars.pm')
| -rw-r--r-- | lib/vars.pm | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/vars.pm b/lib/vars.pm index b9519291c4..0dd5758297 100644 --- a/lib/vars.pm +++ b/lib/vars.pm @@ -14,6 +14,13 @@ This will predeclare all the variables whose names are in the list, allowing you to use them under "use strict", and disabling any typo warnings. +Packages such as the B<AutoLoader> and B<SelfLoader> that delay loading +of subroutines within packages can create problems with package lexicals +defined using C<my()>. While the B<vars> pragma cannot duplicate the +effect of package lexicals (total transparency outside of the package), +it can act as an acceptable substitute by pre-declaring global symbols, +ensuring their availability to to the later-loaded routines. + See L<perlmod/Pragmatic Modules>. =cut |