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#!perl -w
use strict;
use warnings FATAL => 'all';
use Test::More;
use Data::Clone;
use Tie::Hash;
use Tie::Array;
use Data::Dumper;
$Data::Dumper::Indent = 0;
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Useqq = 1;
{
package MyNonclonableHash;
our @ISA = qw(Tie::StdHash);
package MyNonclonableArray;
our @ISA = qw(Tie::StdArray);
package MyClonableHash;
use Data::Clone qw(TIECLONE);
our @ISA = qw(Tie::StdHash);
package MyClonableArray;
use Data::Clone qw(TIECLONE);
our @ISA = qw(Tie::StdArray);
}
# HASH
foreach (1 .. 2){
note "for HASH ($_)";
tie my %h, 'MyNonclonableHash';
$h{foo} = 42;
$h{bar} = "xyzzy";
my $c;
eval{
local $Data::Clone::ObjectCallback = sub{ die 'Non-clonable object' };
clone(\%h);
};
like $@, qr/Non-clonable object/, 'clone() croaks';
eval{
$c = clone(\%h);
};
is $@, '';
is tied(%{$c}), tied(%h), 'sutface copy';
$c->{foo}++;
is Dumper($c), Dumper({ foo => 43, bar => "xyzzy" });
is Dumper(\%h), Dumper({ foo => 43, bar => "xyzzy" });
tie %h, 'MyClonableHash';
$h{foo} = 42;
$h{bar} = "xyzzy";
$c = clone(\%h);
isnt $c, \%h;
$c->{foo}++;
is Dumper($c), Dumper({ foo => 43, bar => "xyzzy" });
is Dumper(\%h), Dumper({ foo => 42, bar => "xyzzy" });
# ARRAY
note("for ARRAY ($_)");
tie my @a, 'MyNonclonableArray';
@a = (42, "xyzzy");
eval{
local $Data::Clone::ObjectCallback = sub{ die 'Non-clonable object' };
clone(\@a);
};
like $@, qr/Non-clonable object/, 'clone() croaks';
eval{
$c = clone(\@a);
};
is tied(@{$c}), tied(@a), 'sutface copy';
$c->[0]++;
is Dumper($c), Dumper([43, "xyzzy"]);
is Dumper(\@a), Dumper([43, "xyzzy"]);
tie @a, 'MyClonableArray';
@a = (42, "xyzzy");
$c = clone(\@a);
$c->[0]++;
is Dumper($c), Dumper([43, "xyzzy"]);
is Dumper(\@a), Dumper([42, "xyzzy"]);
}
done_testing;
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