[6803] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System.Collections.Generic;
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| 23 | using System.Linq;
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| 24 | using HeuristicLab.Collections;
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| 25 | using HeuristicLab.Common;
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| 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 27 |
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| 28 | namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding {
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| 29 | [StorableClass]
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| 30 | public sealed class GroupSymbol : Symbol {
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| 31 | private const int minimumArity = 0;
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| 32 | private const int maximumArity = 0;
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| 33 |
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| 34 | public override int MinimumArity {
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| 35 | get { return minimumArity; }
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| 36 | }
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| 37 | public override int MaximumArity {
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| 38 | get { return maximumArity; }
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| 39 | }
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| 40 |
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| 41 | private ObservableSet<ISymbol> symbols;
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| 42 | public IObservableSet<ISymbol> SymbolsCollection {
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| 43 | get { return symbols; }
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| 44 | }
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| 45 | [Storable]
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| 46 | public IEnumerable<ISymbol> Symbols {
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| 47 | get { return symbols; }
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| 48 | private set { symbols = new ObservableSet<ISymbol>(value); }
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| 49 | }
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| 50 |
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| 51 | [StorableConstructor]
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| 52 | private GroupSymbol(bool deserializing) : base(deserializing) { }
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| 53 | private GroupSymbol(GroupSymbol original, Cloner cloner)
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| 54 | : base(original, cloner) {
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| 55 | symbols = new ObservableSet<ISymbol>(original.Symbols.Select(s => cloner.Clone(s)));
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| 56 | }
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| 57 | public override IDeepCloneable Clone(Cloner cloner) {
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| 58 | return new GroupSymbol(this, cloner);
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| 59 | }
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| 60 |
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| 61 | public GroupSymbol() : this("Group Symbol", Enumerable.Empty<ISymbol>()) { }
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| 62 | public GroupSymbol(string name, IEnumerable<ISymbol> symbols)
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| 63 | : base(name, "A symbol which groups other symbols") {
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| 64 | this.symbols = new ObservableSet<ISymbol>(symbols);
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| 65 | InitialFrequency = 0.0;
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| 66 | }
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| 67 |
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| 68 | public override IEnumerable<ISymbol> Flatten() {
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| 69 | return base.Flatten().Union(symbols.SelectMany(s => s.Flatten()));
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| 70 | }
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| 71 | }
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| 72 | }
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