use DX::Step::Backtrack;
use Types::Standard qw(ArrayRef);
-use DX::Utils qw(deparse);
use DX::Class;
with 'DX::Role::Step';
-has actions => (is => 'ro', isa => ArrayRef[Action], required => 1);
-
-#has depends_on => (is => 'ro', isa => DependencyGroupList, required => 1);
-
-has depends_on => (is => 'ro', required => 1, coerce => sub {
- my ($deps) = @_;
- my @exp;
- DEP: foreach my $dep (@$deps) {
- my ($type, @path) = @$dep;
- push @exp, [
- $type,
- map { ref() ? @{$_->value_path or next DEP} : $_ } @path
- ];
- }
- \@exp
+has resolves => (is => 'lazy', init_arg => undef, builder => sub {
+ my ($self) = @_;
+ $self->resolution_space->proposition;
});
-has resolves => (is => 'ro', isa => Proposition);
+has resolution_space => (is => 'ro', isa => ResolutionSpace);
-has alternative_step => (is => 'ro', isa => Step);
+has current_resolution => (is => 'lazy', init_arg => undef, builder => sub {
+ my ($self) = @_;
+ $self->resolution_space->next_resolution;
+});
+
+has actions => (is => 'lazy', init_arg => undef, builder => sub {
+ my ($self) = @_;
+ $self->current_resolution->actions;
+});
+
+has depends_on => (is => 'lazy', init_arg => undef, builder => sub {
+ my ($self) = @_;
+ my $_expand_dep = sub {
+ my ($type, @path) = @{$_[0]};
+ my @expanded = map {
+ ref() ? @{$_->value_path or return ()} : $_
+ } @path;
+ return [ $type, @expanded ];
+ };
+ [ map $_expand_dep->($_),
+ @{$self->current_resolution->veracity_depends_on} ];
+});
+
+has alternative_step => (is => 'lazy', init_arg => undef, builder => sub {
+ my ($self) = @_;
+ my $rspace = $self->resolution_space->remaining_resolution_space;
+ return undef unless @{$rspace->members};
+ return $rspace->next_step;
+});
sub but_first {
my ($self, @actions) = @_;
sub apply_to {
my ($self, $old_ss) = @_;
+ trace resolve => [ statement => [
+ [ symbol => 'resolve' ],
+ [ block => [
+ [ statement => [
+ [ symbol => 'proposition' ],
+ @{$self->resolves->for_deparse->[1]},
+ ] ],
+ (@{$self->actions}
+ ? [ statement => [
+ [ symbol => 'actions' ],
+ [ block => [ @{$self->actions} ] ],
+ ] ]
+ : ()),
+ [ statement => [
+ [ symbol => 'depends_on' ],
+ [ pairs => [
+ map [
+ (split '::', ${$_->[0]})[-1],
+ [ value_path => [ @{$_}[1..$#$_] ] ]
+ ], @{$self->depends_on}
+ ] ],
+ ] ],
+ ] ]
+ ] ];
my $ns = do {
if (my $prop = $old_ss->next_proposition) {
DX::Step::ConsiderProposition->new(
$old_ss->on_solution_step
}
};
- my $alt_step = $self->alternative_step;
my $ss = $old_ss->but(
next_step => $ns,
(@{$self->actions}