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#!./perl
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#
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# Copyright (c) 1995-2000, Raphael Manfredi
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#
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# You may redistribute only under the same terms as Perl 5, as specified
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# in the README file that comes with the distribution.
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#
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BEGIN {
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# Do this as the very first thing, in order to avoid problems with the
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# PADTMP flag on pre-5.19.3 threaded Perls. On those Perls, compiling
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# code that contains a constant-folded canonical truth value breaks
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# the ability to take a reference to that canonical truth value later.
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$::false = 0;
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%::immortals = (
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'u' => \undef,
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'y' => \!$::false,
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'n' => \!!$::false,
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);
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}
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sub BEGIN {
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if ($ENV{PERL_CORE}) {
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chdir 'dist/Storable' if -d 'dist/Storable';
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@INC = ('../../lib', 't');
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} else {
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unshift @INC, 't';
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unshift @INC, 't/compat' if $] < 5.006002;
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}
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require Config; import Config;
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if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) {
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print "1..0 # Skip: Storable was not built\n";
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exit 0;
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}
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}
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use Test::More;
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use Storable qw(freeze thaw store retrieve fd_retrieve);
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%::weird_refs =
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(REF => \(my $aref = []),
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VSTRING => \(my $vstring = v1.2.3),
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'long VSTRING' => \(my $lvstring = eval "v" . 0 x 300),
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LVALUE => \(my $substr = substr((my $str = "foo"), 0, 3)));
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my $test = 13;
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my $tests = $test + 41 + (2 * 6 * keys %::immortals) + (3 * keys %::weird_refs);
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plan(tests => $tests);
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package SHORT_NAME;
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sub make { bless [], shift }
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package SHORT_NAME_WITH_HOOK;
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sub make { bless [], shift }
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sub STORABLE_freeze {
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my $self = shift;
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return ("", $self);
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}
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sub STORABLE_thaw {
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my $self = shift;
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my $cloning = shift;
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my ($x, $obj) = @_;
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die "STORABLE_thaw" unless $obj eq $self;
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}
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package main;
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# Still less than 256 bytes, so long classname logic not fully exercised
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# Identifier too long - 5.004
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# parser.h: char tokenbuf[256]: cperl5.24 => 1024
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my $m = ($Config{usecperl} and $] >= 5.024) ? 56 : 14;
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my $longname = "LONG_NAME_" . ('xxxxxxxxxxxxx::' x $m) . "final";
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eval <
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package $longname;
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\@ISA = ("SHORT_NAME");
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EOC
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is($@, '');
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eval <
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package ${longname}_WITH_HOOK;
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\@ISA = ("SHORT_NAME_WITH_HOOK");
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EOC
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is($@, '');
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# Construct a pool of objects
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my @pool;
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for (my $i = 0; $i < 10; $i++) {
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push(@pool, SHORT_NAME->make);
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push(@pool, SHORT_NAME_WITH_HOOK->make);
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push(@pool, $longname->make);
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push(@pool, "${longname}_WITH_HOOK"->make);
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}
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my $x = freeze \@pool;
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pass("Freeze didn't crash");
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my $y = thaw $x;
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is(ref $y, 'ARRAY');
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is(scalar @{$y}, @pool);
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is(ref $y->[0], 'SHORT_NAME');
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is(ref $y->[1], 'SHORT_NAME_WITH_HOOK');
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is(ref $y->[2], $longname);
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is(ref $y->[3], "${longname}_WITH_HOOK");
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my $good = 1;
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for (my $i = 0; $i < 10; $i++) {
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do { $good = 0; last } unless ref $y->[4*$i] eq 'SHORT_NAME';
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do { $good = 0; last } unless ref $y->[4*$i+1] eq 'SHORT_NAME_WITH_HOOK';
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do { $good = 0; last } unless ref $y->[4*$i+2] eq $longname;
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do { $good = 0; last } unless ref $y->[4*$i+3] eq "${longname}_WITH_HOOK";
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}
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is($good, 1);
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{
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my $blessed_ref = bless \\[1,2,3], 'Foobar';
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my $x = freeze $blessed_ref;
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my $y = thaw $x;
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is(ref $y, 'Foobar');
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is($$$y->[0], 1);
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}
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package RETURNS_IMMORTALS;
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sub make { my $self = shift; bless [@_], $self }
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sub STORABLE_freeze {
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# Some reference some number of times.
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my $self = shift;
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my ($what, $times) = @$self;
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return ("$what$times", ($::immortals{$what}) x $times);
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}
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sub STORABLE_thaw {
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my $self = shift;
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my $cloning = shift;
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my ($x, @refs) = @_;
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my ($what, $times) = $x =~ /(.)(\d+)/;
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die "'$x' didn't match" unless defined $times;
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main::is(scalar @refs, $times);
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my $expect = $::immortals{$what};
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die "'$x' did not give a reference" unless ref $expect;
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my $fail;
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foreach (@refs) {
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$fail++ if $_ != $expect;
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}
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main::is($fail, undef);
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}
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package main;
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# XXX Failed tests: 15, 27, 39 with 5.12 and 5.10 threaded.
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# 15: 1 fail (y x 1), 27: 2 fail (y x 2), 39: 3 fail (y x 3)
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# $Storable::DEBUGME = 1;
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my $count;
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foreach $count (1..3) {
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my $immortal;
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foreach $immortal (keys %::immortals) {
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print "# $immortal x $count\n";
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my $i = RETURNS_IMMORTALS->make ($immortal, $count);
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my $f = freeze ($i);
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TODO: {
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# ref sv_true is not always sv_true, at least in older threaded perls.
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local $TODO = "Some 5.10/12 do not preserve ref identity with freeze \\(1 == 1)"
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if !defined($f) and $] < 5.013 and $] > 5.009 and $immortal eq 'y';
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isnt($f, undef);
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}
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my $t = thaw $f;
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pass("thaw didn't crash");
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}
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}
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# Test automatic require of packages to find thaw hook.
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package HAS_HOOK;
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$loaded_count = 0;
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$thawed_count = 0;
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sub make {
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bless [];
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}
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sub STORABLE_freeze {
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my $self = shift;
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return '';
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}
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package main;
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my $f = freeze (HAS_HOOK->make);
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is($HAS_HOOK::loaded_count, 0);
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is($HAS_HOOK::thawed_count, 0);
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my $t = thaw $f;
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is($HAS_HOOK::loaded_count, 1);
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is($HAS_HOOK::thawed_count, 1);
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isnt($t, undef);
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is(ref $t, 'HAS_HOOK');
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delete $INC{"HAS_HOOK.pm"};
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delete $HAS_HOOK::{STORABLE_thaw};
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$t = thaw $f;
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is($HAS_HOOK::loaded_count, 2);
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is($HAS_HOOK::thawed_count, 2);
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isnt($t, undef);
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is(ref $t, 'HAS_HOOK');
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{
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package STRESS_THE_STACK;
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my $stress;
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sub make {
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bless [];
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}
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sub no_op {
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0;
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}
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sub STORABLE_freeze {
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my $self = shift;
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++$freeze_count;
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return no_op(1..(++$stress * 2000)) ? die "can't happen" : '';
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}
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sub STORABLE_thaw {
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my $self = shift;
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++$thaw_count;
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no_op(1..(++$stress * 2000)) && die "can't happen";
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return;
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}
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}
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$STRESS_THE_STACK::freeze_count = 0;
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$STRESS_THE_STACK::thaw_count = 0;
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$f = freeze (STRESS_THE_STACK->make);
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is($STRESS_THE_STACK::freeze_count, 1);
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is($STRESS_THE_STACK::thaw_count, 0);
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$t = thaw $f;
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is($STRESS_THE_STACK::freeze_count, 1);
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is($STRESS_THE_STACK::thaw_count, 1);
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isnt($t, undef);
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is(ref $t, 'STRESS_THE_STACK');
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my $file = "storable-testfile.$$";
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die "Temporary file '$file' already exists" if -e $file;
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END { while (-f $file) {unlink $file or die "Can't unlink '$file': $!" }}
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$STRESS_THE_STACK::freeze_count = 0;
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$STRESS_THE_STACK::thaw_count = 0;
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store (STRESS_THE_STACK->make, $file);
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is($STRESS_THE_STACK::freeze_count, 1);
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is($STRESS_THE_STACK::thaw_count, 0);
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$t = retrieve ($file);
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is($STRESS_THE_STACK::freeze_count, 1);
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is($STRESS_THE_STACK::thaw_count, 1);
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isnt($t, undef);
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is(ref $t, 'STRESS_THE_STACK');
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{
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package ModifyARG112358;
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sub STORABLE_freeze { $_[0] = "foo"; }
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my $o= {str=>bless {}};
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my $f= ::freeze($o);
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::is ref $o->{str}, __PACKAGE__,
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'assignment to $_[0] in STORABLE_freeze does not corrupt things';
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}
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# [perl #113880]
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{
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{
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package WeirdRefHook;
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sub STORABLE_freeze { () }
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$INC{'WeirdRefHook.pm'} = __FILE__;
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}
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for my $weird (keys %weird_refs) {
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my $obj = $weird_refs{$weird};
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bless $obj, 'WeirdRefHook';
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my $frozen;
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my $success = eval { $frozen = freeze($obj); 1 };
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ok($success, "can freeze $weird objects")
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|| diag("freezing failed: $@");
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my $thawn = thaw($frozen);
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# is_deeply ignores blessings
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is ref $thawn, ref $obj, "get the right blessing back for $weird";
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if ($weird =~ 'VSTRING') {
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# It is not just Storable that did not support vstrings. :-)
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# See https://rt.cpan.org/Ticket/Display.html?id=78678
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my $newver = "version"->can("new")
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? sub { "version"->new(shift) }
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: sub { "" };
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if (!ok
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$$thawn eq $$obj && &$newver($$thawn) eq &$newver($$obj),
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"get the right value back"
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) {
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diag "$$thawn vs $$obj";
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diag &$newver($$thawn) eq &$newver($$obj) if &$newver(1);
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}
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}
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else {
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is_deeply($thawn, $obj, "get the right value back");
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}
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}
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}
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{
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# [perl #118551]
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{
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package RT118551;
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sub new {
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my $class = shift;
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my $string = shift;
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die 'Bad data' unless defined $string;
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my $self = { string => $string };
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return bless $self, $class;
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}
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14c646 |
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sub STORABLE_freeze {
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my $self = shift;
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my $cloning = shift;
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return if $cloning;
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return ($self->{string});
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}
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14c646 |
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sub STORABLE_attach {
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my $class = shift;
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my $cloning = shift;
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my $string = shift;
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return $class->new($string);
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}
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}
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my $x = [ RT118551->new('a'), RT118551->new('') ];
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$y = freeze($x);
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14c646 |
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ok(eval {thaw($y)}, "empty serialized") or diag $@; # <-- dies here with "Bad data"
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}
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{
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14c646 |
{
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package FreezeHookDies;
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sub STORABLE_freeze {
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die ${$_[0]}
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}
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14c646 |
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package ThawHookDies;
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sub STORABLE_freeze {
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my ($self, $cloning) = @_;
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my $tmp = $$self;
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return "a", \$tmp;
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}
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sub STORABLE_thaw {
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my ($self, $cloning, $str, $obj) = @_;
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die $$obj;
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14c646 |
}
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14c646 |
}
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my $x = bless \(my $tmpx = "Foo"), "FreezeHookDies";
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14c646 |
my $y = bless \(my $tmpy = []), "FreezeHookDies";
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14c646 |
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14c646 |
ok(!eval { store($x, "store$$"); 1 }, "store of hook which throws no NL died");
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14c646 |
ok(!eval { store($y, "store$$"); 1 }, "store of hook which throws ref died");
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14c646 |
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14c646 |
ok(!eval { freeze($x); 1 }, "freeze of hook which throws no NL died");
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14c646 |
ok(!eval { freeze($y); 1 }, "freeze of hook which throws ref died");
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14c646 |
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14c646 |
ok(!eval { dclone($x); 1 }, "dclone of hook which throws no NL died");
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14c646 |
ok(!eval { dclone($y); 1 }, "dclone of hook which throws ref died");
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Packit |
14c646 |
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my $ostr = bless \(my $tmpstr = "Foo"), "ThawHookDies";
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my $oref = bless \(my $tmpref = []), "ThawHookDies";
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14c646 |
ok(store($ostr, "store$$"), "save throw Foo on thaw");
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14c646 |
ok(!eval { retrieve("store$$"); 1 }, "retrieve of throw Foo on thaw died");
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14c646 |
open FH, "<", "store$$" or die;
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14c646 |
binmode FH;
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14c646 |
ok(!eval { fd_retrieve(*FH); 1 }, "fd_retrieve of throw Foo on thaw died");
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ok(!ref $@, "right thing thrown");
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close FH;
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14c646 |
ok(store($oref, "store$$"), "save throw ref on thaw");
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14c646 |
ok(!eval { retrieve("store$$"); 1 }, "retrieve of throw ref on thaw died");
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14c646 |
open FH, "<", "store$$" or die;
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Packit |
14c646 |
binmode FH;
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14c646 |
ok(!eval { fd_retrieve(*FH); 1 }, "fd_retrieve of throw [] on thaw died");
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14c646 |
ok(ref $@, "right thing thrown");
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14c646 |
close FH;
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Packit |
14c646 |
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Packit |
14c646 |
my $strdata = freeze($ostr);
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14c646 |
ok(!eval { thaw($strdata); 1 }, "thaw of throw Foo on thaw died");
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14c646 |
ok(!ref $@, "and a string thrown");
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14c646 |
my $refdata = freeze($oref);
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14c646 |
ok(!eval { thaw($refdata); 1 }, "thaw of throw [] on thaw died");
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Packit |
14c646 |
ok(ref $@, "and a ref thrown");
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Packit |
14c646 |
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Packit |
14c646 |
unlink("store$$");
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Packit |
14c646 |
}
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