1 | namespace HeuristicLab.Problems.ProgramSynthesis.Push.Expressions {
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2 | using HeuristicLab.Problems.ProgramSynthesis.Push.Interpreter;
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3 | using HeuristicLab.Problems.ProgramSynthesis.Push.Stack;
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4 |
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5 | public abstract class PushExpression<T> : StatefulExpression<T> {
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6 |
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7 | protected PushExpression(T state) : base(state) { }
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8 |
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9 | protected bool Eval(IStack<T> stack) {
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10 | stack.Push(this.State);
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11 | return true;
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12 | }
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13 |
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14 | public override string StringRepresentation { get { return this.State.ToString(); } }
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15 | }
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16 |
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17 | public class IntegerPushExpression : PushExpression<long> {
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18 | public IntegerPushExpression(long state)
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19 | : base(state) {
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20 | }
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21 |
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22 | public override bool Eval(IPushInterpreter interpreter) {
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23 | return Eval(interpreter.IntegerStack);
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24 | }
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25 | }
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26 |
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27 | public class FloatPushExpression : PushExpression<double> {
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28 | public FloatPushExpression(double state)
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29 | : base(state) {
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30 | }
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31 |
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32 | public override bool Eval(IPushInterpreter interpreter) {
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33 | return Eval(interpreter.FloatStack);
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34 | }
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35 | }
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36 |
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37 | public class BooleanPushExpression : PushExpression<bool> {
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38 | public BooleanPushExpression(bool state)
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39 | : base(state) {
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40 | }
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41 |
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42 | public override bool Eval(IPushInterpreter interpreter) {
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43 | return Eval(interpreter.BooleanStack);
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44 | }
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45 | }
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46 |
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47 | public class NamePushExpression : PushExpression<string> {
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48 | public NamePushExpression(string state)
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49 | : base(state) {
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50 | }
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51 |
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52 | public override bool Eval(IPushInterpreter interpreter) {
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53 | return Eval(interpreter.NameStack);
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54 | }
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55 | }
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56 |
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57 | public class ExecPushExpression : PushExpression<Expression> {
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58 | public ExecPushExpression(Expression state)
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59 | : base(state) {
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60 | }
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61 |
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62 | public override bool Eval(IPushInterpreter interpreter) {
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63 | return Eval(interpreter.ExecStack);
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64 | }
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65 | }
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66 | } |
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