presto-main/src/main/java/io/prestosql/sql/relational/DeterminismEvaluator.java/DeterminismEvaluator/DeterminismEvaluator
class DeterminismEvaluator:    public DeterminismEvaluator(Metadata metadata)
    {
        this.metadata = requireNonNull(metadata, "metadata is null");
    }