Commit | Line | Data |
5ef4d923 |
1 | package DX::Op::Observe; |
2 | |
3 | use DX::ObservationRequired; |
4 | use Moo; |
5 | |
6 | with 'DX::Role::Op'; |
7 | |
8 | has vars => (is => 'ro', required => 1); |
9 | has builder => (is => 'ro', required => 1); |
10 | |
11 | has _arg_map => (is => 'lazy', builder => sub { |
12 | my ($self) = @_; |
13 | my $name = 'arg0'; |
14 | +{ map +($name++, $_), @{$self->vars} }; |
15 | }); |
16 | |
17 | sub run { |
18 | my ($self, $state) = @_; |
19 | ($state, my %args) = $self->_expand_args($state, %{$self->_arg_map}); |
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20 | my @vars = map $state->resolve_value($_), @args{sort keys %args}; |
5ef4d923 |
21 | my $observer = $self->builder->(@vars); |
22 | $state->return_from_run( |
23 | DX::ObservationRequired->new( |
24 | observer => $observer, |
25 | resume => $state->then($self->next) |
26 | ) |
27 | ); |
28 | } |
29 | |
30 | 1; |