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source: stable/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Symbols/ProgramRootSymbol.cs @ 17106

Last change on this file since 17106 was 17097, checked in by mkommend, 5 years ago

#2520: Merged 16565 - 16579 into stable.

File size: 2.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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 HeuristicLab.Common;
23using HeuristicLab.Core;
24using HEAL.Attic;
25namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding {
26  [StorableType("04226CD8-A4BE-4D85-BB75-442A271C0E4E")]
27  [Item(ProgramRootSymbol.ProgramRootSymbolName, ProgramRootSymbol.ProgramRootSymbolDescription)]
28  public sealed class ProgramRootSymbol : Symbol, IReadOnlySymbol {
29    public const string ProgramRootSymbolName = "ProgramRootSymbol";
30    public const string ProgramRootSymbolDescription = "Special symbol that represents the program root node of a symbolic expression tree.";
31    private const int minimumArity = 1;
32    private const int maximumArity = byte.MaxValue;
33
34    public override int MinimumArity {
35      get { return minimumArity; }
36    }
37    public override int MaximumArity {
38      get { return maximumArity; }
39    }
40
41    [StorableConstructor]
42    private ProgramRootSymbol(StorableConstructorFlag _) : base(_) { }
43    private ProgramRootSymbol(ProgramRootSymbol original, Cloner cloner) : base(original, cloner) { }
44    public ProgramRootSymbol() : base(ProgramRootSymbol.ProgramRootSymbolName, ProgramRootSymbol.ProgramRootSymbolDescription) { }
45
46    public override IDeepCloneable Clone(Cloner cloner) {
47      return new ProgramRootSymbol(this, cloner);
48    }
49    public override ISymbolicExpressionTreeNode CreateTreeNode() {
50      return new SymbolicExpressionTreeTopLevelNode(this);
51    }
52  }
53}
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