Last change
on this file since 14320 was
14320,
checked in by pkimmesw, 8 years ago
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#2665 Added Interpreter, Parser, 16 Examples, Expressions needed for the examples
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File size:
873 bytes
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1 | using HeuristicLab.Algorithms.PushGP.Stack;
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2 |
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3 | namespace HeuristicLab.Algorithms.PushGP.Expressions
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4 | {
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5 | public class CodeIfExpression : Expression
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6 | {
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7 | public CodeIfExpression() : base(OpCode.CodeIf)
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8 | { }
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9 |
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10 | public override void Eval(IInterpreterService interpreterService)
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11 | {
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12 | // not enough arguments on stack
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13 | if (interpreterService.BooleanStack.Count == 0 ||
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14 | interpreterService.CodeStack.Count < 2)
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15 | return;
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16 |
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17 | var condition = interpreterService.BooleanStack.Pop();
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18 | var expressionFalse = interpreterService.CodeStack.Pop();
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19 | var expressionTrue = interpreterService.CodeStack.Pop();
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20 |
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21 | interpreterService.ExecStack.Push(condition
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22 | ? expressionTrue
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23 | : expressionFalse);
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24 | }
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25 | }
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26 | }
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