ÿØÿàJFIFÿþ ÿÛC       ÿÛC ÿÀÿÄÿÄ"#QrÿÄÿÄ&1!A"2qQaáÿÚ ?Øy,æ/3JæݹÈ߲؋5êXw²±ÉyˆR”¾I0ó2—PI¾IÌÚiMö¯–þrìN&"KgX:Šíµ•nTJnLK„…@!‰-ý ùúmë;ºgµŒ&ó±hw’¯Õ@”Ü— 9ñ-ë.²1<yà‚¹ïQÐU„ہ?.’¦èûbß±©Ö«Âw*VŒ) `$‰bØԟ’ëXÖ-ËTÜíGÚ3ð«g Ÿ§¯—Jx„–’U/ÂÅv_s(Hÿ@TñJÑãõçn­‚!ÈgfbÓc­:él[ðQe 9ÀPLbÃãCµm[5¿ç'ªjglå‡Ûí_§Úõl-;"PkÞÞÁQâ¼_Ñ^¢SŸx?"¸¦ùY騐ÒOÈ q’`~~ÚtËU¹CڒêV  I1Áß_ÿÙpackage Memoize::SDBM_File; =head1 NAME Memoize::SDBM_File - glue to provide EXISTS for SDBM_File for Storable use =head1 DESCRIPTION See L. =cut use SDBM_File; @ISA = qw(SDBM_File); $VERSION = '1.03'; $Verbose = 0; sub AUTOLOAD { warn "Nonexistent function $AUTOLOAD invoked in Memoize::SDBM_File\n"; } sub import { warn "Importing Memoize::SDBM_File\n" if $Verbose; } my %keylist; # This is so ridiculous... sub _backhash { my $self = shift; my %fakehash; my $k; for ($k = $self->FIRSTKEY(); defined $k; $k = $self->NEXTKEY($k)) { $fakehash{$k} = undef; } $keylist{$self} = \%fakehash; } sub EXISTS { warn "Memoize::SDBM_File EXISTS (@_)\n" if $Verbose; my $self = shift; _backhash($self) unless exists $keylist{$self}; my $r = exists $keylist{$self}{$_[0]}; warn "Memoize::SDBM_File EXISTS (@_) ==> $r\n" if $Verbose; $r; } sub DEFINED { warn "Memoize::SDBM_File DEFINED (@_)\n" if $Verbose; my $self = shift; _backhash($self) unless exists $keylist{$self}; defined $keylist{$self}{$_[0]}; } sub DESTROY { warn "Memoize::SDBM_File DESTROY (@_)\n" if $Verbose; my $self = shift; delete $keylist{$self}; # So much for reference counting... $self->SUPER::DESTROY(@_); } # Maybe establish the keylist at TIEHASH time instead? sub STORE { warn "Memoize::SDBM_File STORE (@_)\n" if $VERBOSE; my $self = shift; $keylist{$self}{$_[0]} = undef; $self->SUPER::STORE(@_); } # Inherit FETCH and TIEHASH 1;