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#line 1
package attributes;
our $VERSION = 0.06;
@EXPORT_OK = qw(get reftype);
@EXPORT = ();
%EXPORT_TAGS = (ALL => [@EXPORT, @EXPORT_OK]);
use strict;
sub croak {
require Carp;
goto &Carp::croak;
}
sub carp {
require Carp;
goto &Carp::carp;
}
## forward declaration(s) rather than wrapping the bootstrap call in BEGIN{}
#sub reftype ($) ;
#sub _fetch_attrs ($) ;
#sub _guess_stash ($) ;
#sub _modify_attrs ;
#sub _warn_reserved () ;
#
# The extra trips through newATTRSUB in the interpreter wipe out any savings
# from avoiding the BEGIN block. Just do the bootstrap now.
BEGIN { bootstrap attributes }
sub import {
@_ > 2 && ref $_[2] or do {
require Exporter;
goto &Exporter::import;
};
my (undef,$home_stash,$svref,@attrs) = @_;
my $svtype = uc reftype($svref);
my $pkgmeth;
$pkgmeth = UNIVERSAL::can($home_stash, "MODIFY_${svtype}_ATTRIBUTES")
if defined $home_stash && $home_stash ne '';
my @badattrs;
if ($pkgmeth) {
my @pkgattrs = _modify_attrs($svref, @attrs);
@badattrs = $pkgmeth->($home_stash, $svref, @attrs);
if (!@badattrs && @pkgattrs) {
return unless _warn_reserved;
@pkgattrs = grep { m/\A[[:lower:]]+(?:\z|\()/ } @pkgattrs;
if (@pkgattrs) {
for my $attr (@pkgattrs) {
$attr =~ s/\(.+\z//s;
}
my $s = ((@pkgattrs == 1) ? '' : 's');
carp "$svtype package attribute$s " .
"may clash with future reserved word$s: " .
join(' : ' , @pkgattrs);
}
}
}
else {
@badattrs = _modify_attrs($svref, @attrs);
}
if (@badattrs) {
croak "Invalid $svtype attribute" .
(( @badattrs == 1 ) ? '' : 's') .
": " .
join(' : ', @badattrs);
}
}
sub get ($) {
@_ == 1 && ref $_[0] or
croak 'Usage: '.__PACKAGE__.'::get $ref';
my $svref = shift;
my $svtype = uc reftype $svref;
my $stash = _guess_stash $svref;
$stash = caller unless defined $stash;
my $pkgmeth;
$pkgmeth = UNIVERSAL::can($stash, "FETCH_${svtype}_ATTRIBUTES")
if defined $stash && $stash ne '';
return $pkgmeth ?
(_fetch_attrs($svref), $pkgmeth->($stash, $svref)) :
(_fetch_attrs($svref))
;
}
sub require_version { goto &UNIVERSAL::VERSION }
1;
__END__
#The POD goes here
#line 417
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