1#!./perl 2# 3# Copyright (c) 1995-2000, Raphael Manfredi 4# 5# You may redistribute only under the same terms as Perl 5, as specified 6# in the README file that comes with the distribution. 7# 8 9sub BEGIN { 10 unshift @INC, 't'; 11 require Config; import Config; 12 if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) { 13 print "1..0 # Skip: Storable was not built\n"; 14 exit 0; 15 } 16 require 'st-dump.pl'; 17} 18 19sub ok; 20 21use Storable qw(freeze thaw); 22 23print "1..23\n"; 24 25($scalar_fetch, $array_fetch, $hash_fetch) = (0, 0, 0); 26 27package TIED_HASH; 28 29sub TIEHASH { 30 my $self = bless {}, shift; 31 return $self; 32} 33 34sub FETCH { 35 my $self = shift; 36 my ($key) = @_; 37 $main::hash_fetch++; 38 return $self->{$key}; 39} 40 41sub STORE { 42 my $self = shift; 43 my ($key, $value) = @_; 44 $self->{$key} = $value; 45} 46 47sub FIRSTKEY { 48 my $self = shift; 49 scalar keys %{$self}; 50 return each %{$self}; 51} 52 53sub NEXTKEY { 54 my $self = shift; 55 return each %{$self}; 56} 57 58package TIED_ARRAY; 59 60sub TIEARRAY { 61 my $self = bless [], shift; 62 return $self; 63} 64 65sub FETCH { 66 my $self = shift; 67 my ($idx) = @_; 68 $main::array_fetch++; 69 return $self->[$idx]; 70} 71 72sub STORE { 73 my $self = shift; 74 my ($idx, $value) = @_; 75 $self->[$idx] = $value; 76} 77 78sub FETCHSIZE { 79 my $self = shift; 80 return @{$self}; 81} 82 83package TIED_SCALAR; 84 85sub TIESCALAR { 86 my $scalar; 87 my $self = bless \$scalar, shift; 88 return $self; 89} 90 91sub FETCH { 92 my $self = shift; 93 $main::scalar_fetch++; 94 return $$self; 95} 96 97sub STORE { 98 my $self = shift; 99 my ($value) = @_; 100 $$self = $value; 101} 102 103package FAULT; 104 105$fault = 0; 106 107sub TIESCALAR { 108 my $pkg = shift; 109 return bless [@_], $pkg; 110} 111 112sub FETCH { 113 my $self = shift; 114 my ($href, $key) = @$self; 115 $fault++; 116 untie $href->{$key}; 117 return $href->{$key} = 1; 118} 119 120package main; 121 122$a = 'toto'; 123$b = \$a; 124 125$c = tie %hash, TIED_HASH; 126$d = tie @array, TIED_ARRAY; 127tie $scalar, TIED_SCALAR; 128 129#$scalar = 'foo'; 130#$hash{'attribute'} = \$d; 131#$array[0] = $c; 132#$array[1] = \$scalar; 133 134### If I say 135### $hash{'attribute'} = $d; 136### below, then dump() incorectly dumps the hash value as a string the second 137### time it is reached. I have not investigated enough to tell whether it's 138### a bug in my dump() routine or in the Perl tieing mechanism. 139$scalar = 'foo'; 140$hash{'attribute'} = 'plain value'; 141$array[0] = \$scalar; 142$array[1] = $c; 143$array[2] = \@array; 144 145@tied = (\$scalar, \@array, \%hash); 146%a = ('key', 'value', 1, 0, $a, $b, 'cvar', \$a, 'scalarref', \$scalar); 147@a = ('first', 3, -4, -3.14159, 456, 4.5, $d, \$d, 148 $b, \$a, $a, $c, \$c, \%a, \@array, \%hash, \@tied); 149 150ok 1, defined($f = freeze(\@a)); 151 152$dumped = &dump(\@a); 153ok 2, 1; 154 155$root = thaw($f); 156ok 3, defined $root; 157 158$got = &dump($root); 159ok 4, 1; 160 161### Used to see the manifestation of the bug documented above. 162### print "original: $dumped"; 163### print "--------\n"; 164### print "got: $got"; 165### print "--------\n"; 166 167ok 5, $got eq $dumped; 168 169$g = freeze($root); 170ok 6, length($f) == length($g); 171 172# Ensure the tied items in the retrieved image work 173@old = ($scalar_fetch, $array_fetch, $hash_fetch); 174@tied = ($tscalar, $tarray, $thash) = @{$root->[$#{$root}]}; 175@type = qw(SCALAR ARRAY HASH); 176 177ok 7, tied $$tscalar; 178ok 8, tied @{$tarray}; 179ok 9, tied %{$thash}; 180 181@new = ($$tscalar, $tarray->[0], $thash->{'attribute'}); 182@new = ($scalar_fetch, $array_fetch, $hash_fetch); 183 184# Tests 10..15 185for ($i = 0; $i < @new; $i++) { 186 print "not " unless $new[$i] == $old[$i] + 1; 187 printf "ok %d\n", 10 + 2*$i; # Tests 10,12,14 188 print "not " unless ref $tied[$i] eq $type[$i]; 189 printf "ok %d\n", 11 + 2*$i; # Tests 11,13,15 190} 191 192# Check undef ties 193my $h = {}; 194tie $h->{'x'}, 'FAULT', $h, 'x'; 195my $hf = freeze($h); 196ok 16, defined $hf; 197ok 17, $FAULT::fault == 0; 198ok 18, $h->{'x'} == 1; 199ok 19, $FAULT::fault == 1; 200 201my $ht = thaw($hf); 202ok 20, defined $ht; 203ok 21, $ht->{'x'} == 1; 204ok 22, $FAULT::fault == 2; 205 206{ 207 package P; 208 use Storable qw(freeze thaw); 209 use vars qw($a $b); 210 $b = "not ok "; 211 sub TIESCALAR { bless \$a } sub FETCH { "ok " } 212 tie $a, P; my $r = thaw freeze \$a; $b = $$r; 213 print $b , 23, "\n"; 214} 215 216