#line 1 package attributes; our $VERSION = 0.08; @EXPORT_OK = qw(get reftype); @EXPORT = (); %EXPORT_TAGS = (ALL => [@EXPORT, @EXPORT_OK]); use strict; sub croak { require Carp; goto &Carp::croak; } sub carp { require Carp; goto &Carp::carp; } ## forward declaration(s) rather than wrapping the bootstrap call in BEGIN{} #sub reftype ($) ; #sub _fetch_attrs ($) ; #sub _guess_stash ($) ; #sub _modify_attrs ; # # 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, @pkgattrs); if (!@badattrs && @pkgattrs) { require warnings; return unless warnings::enabled('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