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HEAD
switch next predicate to mutating searchstate instead of using alt_step
[scpubgit/DX.git]
/
lib
/
DX
/
Step
/
InvokeNextPredicate.pm
1
package DX::Step::InvokeNextPredicate;
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use DX::Class;
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with 'DX::Role::Step';
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has proposition => (is => 'ro', required => 1);
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sub apply_to {
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my ($self, $ss) = @_;
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my $hyp = $ss->current_hypothesis;
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if (my $step = $self->proposition->resolve_for($hyp->scope)) {
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return $ss->but(next_step => $step);
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}
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return undef;
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}
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1;