# On one line so MakeMaker will see it.
require Exporter; our $VERSION = $Exporter::VERSION;
-$Carp::Internal{"Exporter::Heavy"} = 1;
-our $Verbose;
=head1 NAME
# because Carp requires Exporter, and something has to give.
#
+sub _rebuild_cache {
+ my ($pkg, $exports, $cache) = @_;
+ s/^&// foreach @$exports;
+ @{$cache}{@$exports} = (1) x @$exports;
+ my $ok = \@{"${pkg}::EXPORT_OK"};
+ if (@$ok) {
+ s/^&// foreach @$ok;
+ @{$cache}{@$ok} = (1) x @$ok;
+ }
+}
+
sub heavy_export {
# First make import warnings look like they're coming from the "use".
};
my($pkg, $callpkg, @imports) = @_;
- my($type, $sym, $oops);
+ my($type, $sym, $cache_is_current, $oops);
my($exports, $export_cache) = (\@{"${pkg}::EXPORT"},
$Exporter::Cache{$pkg} ||= {});
if (@imports) {
if (!%$export_cache) {
- s/^&// foreach @$exports;
- @{$export_cache}{@$exports} = (1) x @$exports;
- my $ok = \@{"${pkg}::EXPORT_OK"};
- if (@$ok) {
- s/^&// foreach @$ok;
- @{$export_cache}{@$ok} = (1) x @$ok;
- }
+ _rebuild_cache ($pkg, $exports, $export_cache);
+ $cache_is_current = 1;
}
- if ($imports[0] =~ m#^[/!:]#){
+ if (grep m{^[/!:]}, @imports) {
my $tagsref = \%{"${pkg}::EXPORT_TAGS"};
my $tagdata;
my %imports;
}
warn "Import ".($remove ? "del":"add").": @names "
- if $Verbose;
+ if $Exporter::Verbose;
if ($remove) {
foreach $sym (@names) { delete $imports{$sym} }
last;
}
} elsif ($sym !~ s/^&// || !$export_cache->{$sym}) {
- # accumulate the non-exports
- push @carp,
- qq["$sym" is not exported by the $pkg module\n];
- $oops++;
+ # Last chance - see if they've updated EXPORT_OK since we
+ # cached it.
+
+ unless ($cache_is_current) {
+ %$export_cache = ();
+ _rebuild_cache ($pkg, $exports, $export_cache);
+ $cache_is_current = 1;
+ }
+
+ if (!$export_cache->{$sym}) {
+ # accumulate the non-exports
+ push @carp,
+ qq["$sym" is not exported by the $pkg module\n];
+ $oops++;
+ }
}
}
}
# barewords twice... both with and without a leading &.
# (Technique could be applied to $export_cache at cost of memory)
my @expanded = map { /^\w/ ? ($_, '&'.$_) : $_ } @$fail;
- warn "${pkg}::EXPORT_FAIL cached: @expanded" if $Verbose;
+ warn "${pkg}::EXPORT_FAIL cached: @expanded" if $Exporter::Verbose;
@{$fail_cache}{@expanded} = (1) x @expanded;
}
my @failed;
}
warn "Importing into $callpkg from $pkg: ",
- join(", ",sort @imports) if $Verbose;
+ join(", ",sort @imports) if $Exporter::Verbose;
foreach $sym (@imports) {
# shortcut for the common case of no type character
(*{"${callpkg}::$sym"} = \&{"${pkg}::$sym"}, next)
unless $sym =~ s/^(\W)//;
$type = $1;
+ no warnings 'once';
*{"${callpkg}::$sym"} =
$type eq '&' ? \&{"${pkg}::$sym"} :
$type eq '$' ? \${"${pkg}::$sym"} :