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1 | package DX::Op::MemberOf; |
2 | |
3 | use DX::ArrayStream; |
4 | use Moo; |
5 | |
6 | with 'DX::Role::Op'; |
7 | |
8 | has member_var => (is => 'ro', required => 1); |
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9 | has coll_var => (is => 'ro', required => 1); |
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10 | |
11 | sub run { |
12 | my ($self, $state) = @_; |
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13 | ($state, my %args) = $self->_expand_args($state, |
14 | member => $self->member_var, |
15 | of => $self->coll_var |
16 | ); |
17 | my ($member, $of) = @args{qw(member of)}; |
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18 | die "member bound" if $member->is_bound; |
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19 | my $set = $state->facts->{$of->bound_value}; |
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20 | my $stream = $set->to_stream; |
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21 | return $state->bind_stream_then($member, $stream, $self->next); |
22 | } |
23 | |
24 | 1; |