1 | namespace HeuristicLab.Problems.ProgramSynthesis.Push.Expressions {
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2 | using System.Collections.Generic;
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3 |
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4 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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5 | using HeuristicLab.Problems.ProgramSynthesis.Push.Attributes;
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6 | using HeuristicLab.Problems.ProgramSynthesis.Push.Interpreter;
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7 | using HeuristicLab.Problems.ProgramSynthesis.Push.Stack;
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8 |
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9 | /// <summary>
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10 | /// Takes the rest of the top item on the type stack.
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11 | /// </summary>
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12 | /// <typeparam name="T"></typeparam>
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13 | [StorableClass]
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14 | public abstract class VectorRestExpression<T> : StatelessExpression {
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15 | protected VectorRestExpression() { }
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16 | [StorableConstructor]
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17 | protected VectorRestExpression(bool deserializing) : base(deserializing) { }
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18 |
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19 | protected bool IsNoop(IPushStack<List<T>> vectorStack) {
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20 | return vectorStack.IsEmpty || vectorStack.Top.Count < 2;
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21 | }
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22 |
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23 | protected void Eval(IPushStack<List<T>> vectorStack) {
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24 | var result = vectorStack.Top.GetRange(1, vectorStack.Top.Count - 1);
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25 | vectorStack.SetTop(result);
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26 | }
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27 | }
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28 |
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29 | [StorableClass]
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30 | [PushExpression(StackTypes.IntegerVector, "INTEGER[].REST")]
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31 | public class IntegerVectorRestExpression : VectorRestExpression<long> {
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32 | public IntegerVectorRestExpression() { }
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33 | [StorableConstructor]
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34 | protected IntegerVectorRestExpression(bool deserializing) : base(deserializing) { }
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35 |
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36 | public override bool IsNoop(IInternalPushInterpreter interpreter) {
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37 | return IsNoop(interpreter.IntegerVectorStack);
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38 | }
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39 |
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40 | public override void Eval(IInternalPushInterpreter interpreter) {
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41 | Eval(interpreter.IntegerVectorStack);
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42 | }
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43 | }
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44 |
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45 | [StorableClass]
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46 | [PushExpression(StackTypes.FloatVector, "FLOAT[].REST")]
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47 | public class FloatVectorRestExpression : VectorRestExpression<double> {
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48 | public FloatVectorRestExpression() { }
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49 | [StorableConstructor]
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50 | protected FloatVectorRestExpression(bool deserializing) : base(deserializing) { }
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51 |
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52 | public override bool IsNoop(IInternalPushInterpreter interpreter) {
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53 | return IsNoop(interpreter.FloatVectorStack);
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54 | }
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55 |
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56 | public override void Eval(IInternalPushInterpreter interpreter) {
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57 | Eval(interpreter.FloatVectorStack);
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58 | }
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59 | }
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60 |
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61 | [StorableClass]
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62 | [PushExpression(StackTypes.BooleanVector, "BOOLEAN[].REST")]
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63 | public class BooleanVectorRestExpression : VectorRestExpression<bool> {
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64 | public BooleanVectorRestExpression() { }
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65 | [StorableConstructor]
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66 | protected BooleanVectorRestExpression(bool deserializing) : base(deserializing) { }
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67 |
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68 | public override bool IsNoop(IInternalPushInterpreter interpreter) {
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69 | return IsNoop(interpreter.BooleanVectorStack);
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70 | }
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71 |
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72 | public override void Eval(IInternalPushInterpreter interpreter) {
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73 | Eval(interpreter.BooleanVectorStack);
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74 | }
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75 | }
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76 |
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77 | [StorableClass]
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78 | [PushExpression(StackTypes.StringVector, "STRING[].REST")]
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79 | public class StringVectorRestExpression : VectorRestExpression<string> {
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80 | public StringVectorRestExpression() { }
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81 | [StorableConstructor]
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82 | protected StringVectorRestExpression(bool deserializing) : base(deserializing) { }
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83 |
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84 | public override bool IsNoop(IInternalPushInterpreter interpreter) {
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85 | return IsNoop(interpreter.StringVectorStack);
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86 | }
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87 |
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88 | public override void Eval(IInternalPushInterpreter interpreter) {
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89 | Eval(interpreter.StringVectorStack);
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90 | }
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91 | }
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92 | }
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