source: branches/Robocode.TrunkInt/HeuristicLab.Problems.Robocode/3.3/Symbols/Statements/IfStat.cs @ 10014

Last change on this file since 10014 was 10014, checked in by jkarder, 9 years ago

#2069:

  • refactored grammar and symbols
  • changed RobocodeProblem to use the ProbabilisticTreeCreator by default
File size: 2.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using HeuristicLab.Common;
25using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Problems.Robocode {
29  [StorableClass]
30  public class IfStat : CodeNode {
31    public override int MinimumArity { get { return 2; } }
32    public override int MaximumArity { get { return 3; } }
33
34    [Storable]
35    public override string Prefix { get; set; }
36
37    [Storable]
38    public override string Suffix { get; set; }
39
40    [StorableConstructor]
41    protected IfStat(bool deserializing) : base(deserializing) { }
42    protected IfStat(IfStat original, Cloner cloner) : base(original, cloner) { }
43
44    public IfStat()
45      : base("IfStat", "An if statement.") {
46      Prefix = "if (";
47      Suffix = ") {";
48    }
49
50    public override IDeepCloneable Clone(Cloner cloner) {
51      return new IfStat(this, cloner);
52    }
53
54    public override string Interpret(ISymbolicExpressionTreeNode node, IEnumerable<ISymbolicExpressionTreeNode> children) {
55      string condition = string.Empty, ifTrue = string.Empty, ifElse = string.Empty;
56      foreach (var c in children) {
57        if (c.Symbol is LogicalExpression)
58          condition = ((CodeNode)c.Symbol).Interpret(c, c.Subtrees);
59        else if (c.Symbol is Stat)
60          ifTrue = ((CodeNode)c.Symbol).Interpret(c, c.Subtrees);
61        else if (c.Symbol is ElseStat || c.Symbol is EmptyEvent || c.Symbol is DoNothing)
62          ifElse = ((CodeNode)c.Symbol).Interpret(c, c.Subtrees);
63        else throw new ArgumentException("Unexpected children.", "children");
64      }
65      string result = Prefix + condition + Suffix + Environment.NewLine + ifTrue + Environment.NewLine + "}";
66      result += string.IsNullOrEmpty(ifElse) ? Environment.NewLine : ifElse;
67      return result;
68    }
69  }
70}
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