1 package DX::Step::ResolveProposition;
3 use Types::Standard qw(ArrayRef);
4 use DX::Utils qw(deparse);
9 has actions => (is => 'ro', isa => ArrayRef[Action], required => 1);
11 has depends_on => (is => 'ro', isa => DependencyGroupList, required => 1);
13 has resolves => (is => 'ro', isa => Proposition);
15 has alternative_step => (is => 'ro', isa => Step);
18 my ($self, @actions) = @_;
19 $self->but(actions => [ @actions, @{$self->actions} ]);
22 sub but_with_dependencies_on {
23 my ($self, @deps) = @_;
24 $self->but(depends_on => [ @{$self->depends_on}, @deps ]);
29 my $old_hyp = $ss->current_hypothesis;
30 trace 'step.apply.old_hyp '.$self => $old_hyp;
31 trace 'step.apply.actions '.$self => $self->actions;
32 my $new_hyp = $self->_apply_to_hyp($old_hyp);
33 return $ss->but(next_step => DX::Step::Backtrack->new) unless $new_hyp;
34 trace 'step.apply.new_hyp '.$self => $new_hyp;
36 if (my $prop = $ss->next_proposition($new_hyp)) {
37 DX::Step::ConsiderProposition->new(
44 my $alt_step = $self->alternative_step;
47 current_hypothesis => $new_hyp,
50 ? (alternatives => [ [ $old_hyp, $alt_step ], @{$ss->alternatives} ])
58 my ($self, $old_hyp) = @_;
59 (my $hyp, my @recheck) = $old_hyp->with_resolution(
60 $self->resolves, $self->depends_on, $self->actions
62 return $self->_recheck_hyp_for($hyp, @recheck);
65 sub _recheck_hyp_for {
66 my ($self, $old_hyp, @recheck) = @_;
67 return undef unless $old_hyp;
68 return $old_hyp unless @recheck;
70 foreach my $prop (@recheck) {
71 return undef unless $hyp = $self->_recheck_one($hyp, $prop);
77 my ($self, $old_hyp, $prop) = @_;
79 my $ap = DX::ActionPolicy::LockScope->new(
80 lock_to_depth => $old_hyp->scope->depth,
81 next_policy => $old_hyp->action_policy,
84 # we should probably be doing something about pruning the scope
85 # but that's completely pointless until we have rules
87 my $hyp = ref($old_hyp)->new(
88 scope => $old_hyp->scope,
89 resolved_propositions => DX::ResolvedPropositionSet->new_empty,
91 action_applications => [],
95 my $pseq = DX::PropositionSequence->new(
101 trace 'step.recheck.hyp' => $hyp;
103 my $ss = DX::SearchState->new(
104 current_hypothesis => $hyp,
106 propositions => $pseq,
107 next_step => DX::Step::ConsiderProposition->new(
108 proposition => $prop,
110 is_solution_state => 0,
111 on_exhaustion_step => undef,
112 on_solution_step => DX::Step::MarkAsSolution->new,
115 my $sp = DX::SearchProcess->new(
116 current_search_state => $ss,
119 my $sol_sp = $sp->find_solution;
122 trace 'step.recheck.fail' => 'argh';
126 my $sol_rps = $sol_sp->current_hypothesis->resolved_propositions;
128 my $rps = $old_hyp->resolved_propositions;
130 $rps = $rps->with_updated_dependencies_for(
131 $prop, $sol_rps->dependencies_for($prop)
134 trace 'step.recheck.done' => 'yay';
136 return $old_hyp->but(resolved_propositions => $rps);