NAME

FP::MutableArray

SYNOPSIS

    use FP::MutableArray;
    use FP::Div 'inc';

    my $a= mutablearray(1,4,5)->map(*inc);
    is $a->sum, 13;
    $a->[0]++;
    is $a->sum, 14;

    # They can be turned into immutable ones:
    my $b= $a->pure;
    like( (eval { $b->[0]++; 1 } || $@),
          qr/^Modification of a read-only value attempted/);

    # Although this really consumes the original array, which is now
    # immutable, too:
    like( (eval { $a->[0]++; 1 } || $@),
          qr/^Modification of a read-only value attempted/);

    is $a->sum, 14;

    is( FP::_::MutableArray->null == FP::_::MutableArray->null, '' );

DESCRIPTION

Native Perl arrays but blessed so that they can follow the sequences protocol.

SEE ALSO

Implements: FP::Abstract::Sequence.

FP::PureArray, FP::Array

NOTE

This is alpha software! Read the status section in the package README or on the website.