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|
package Array::Unique::Hash;
use strict;
use warnings;
our $VERSION = '0.09';
sub new {
TIEARRAY(@_);
}
sub TIEARRAY {
my $class = shift;
my $self = {
array => [],
hash => {},
};
bless $self, $class;
}
sub CLEAR {
my $self = shift;
$self->{array} = [];
$self->{hash} = {};
}
sub EXTEND {
my $self = shift;
#?
}
sub STORE {
my ($self, $index, $value) = @_;
$self->SPLICE($index, 1, $value);
}
sub FETCHSIZE {
my $self = shift;
return scalar @{$self->{array}};
}
sub FETCH {
my ($self, $index) = @_;
${$self->{array}}[$index];
}
sub STORESIZE {
my $self = shift;
my $size = shift;
# We cannot enlarge the array as the values would be undef
# But we can make it smaller
# if ($self->FETCHSIZE > $size) {
# $self->{->Splice($size);
# }
$#{$self->{array}} = $size;
return $size;
}
#sub EXISTS { exists $_[0]->[$_[1]] }
#sub DELETE { delete $_[0]->[$_[1]] }
#sub DESTROY
sub SPLICE {
my $self = shift;
my $offset = shift;
my $length = shift;
# reset length value to positive (this is done by the normal splicetoo)
if ($length < 0) {
#$length = @{$self->{array}} + $length;
$length = $self->FETCHSIZE + $length;
}
# reset offset to positive (this is done by the normal splice too)
if ($offset < 0) {
$offset += $self->FETCHSIZE;
}
# if ($offset > $self->FETCHSIZE) {
# $offset = $self->FETCHSIZE;
# }
# my @s = @{$self->{array}}[$offset..$offset+$length]; # the old values to be returned
my @original = splice @{$self->{array}}, $offset, $length, @_;
return @original;
}
sub PUSH {
my $self = shift;
$self->SPLICE($self->FETCHSIZE, 0, @_);
# while (my $value = shift) {
# $self->STORE($self->FETCHSIZE+1, $value);
# }
return $self->FETCHSIZE;
}
sub POP {
my $self = shift;
$self->SPLICE(-1);
}
sub SHIFT {
my $self = shift;
#($self->{array})[0];
$self->SPLICE(0,1);
}
sub UNSHIFT {
my $self = shift;
$self->SPLICE(0,0,@_);
}
1;
__END__
=pod
See Array::Unique for documentation
=cut
|
