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Implement hashCode and equals methods in IdentityNextStateDescriptor #390

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Implement hashCode and equals methods in IdentityNextStateDescriptor #390

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15 changes: 15 additions & 0 deletions ...n/java/hu/bme/mit/theta/analysis/algorithm/mdd/ansd/impl/IdentityNextStateDescriptor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
import hu.bme.mit.delta.collections.UniqueTable;
import hu.bme.mit.theta.analysis.algorithm.mdd.ansd.AbstractNextStateDescriptor;
import hu.bme.mit.theta.analysis.algorithm.mdd.ansd.StateSpaceInfo;
import java.util.Objects;
import java.util.Optional;

public final class IdentityNextStateDescriptor implements AbstractNextStateDescriptor {
Expand Down Expand Up @@ -66,4 +67,18 @@ public Optional<Iterable<AbstractNextStateDescriptor>> split() {
public boolean evaluate() {
return true;
}

@Override
public int hashCode() {
return Objects.hash(getClass(), child);
}

@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj instanceof IdentityNextStateDescriptor that) {
return Objects.equals(this.child, that.child);
}
return false;
}
}
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