[5686] | 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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[6233] | 22 | using System;
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[5686] | 23 | using HeuristicLab.Common;
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[6233] | 24 | using HeuristicLab.Core;
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[5686] | 25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 26 |
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| 27 | namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding {
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| 28 | [StorableClass]
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| 29 | public abstract class SymbolicExpressionGrammar : SymbolicExpressionGrammarBase, ISymbolicExpressionGrammar {
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| 30 | #region fields & properties
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[6233] | 31 | [Storable(DefaultValue = false)]
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| 32 | private bool readOnly;
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| 33 | public bool ReadOnly {
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| 34 | get { return readOnly; }
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| 35 | set {
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| 36 | if (readOnly != value) {
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| 37 | readOnly = value;
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| 38 | OnReadOnlyChanged();
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| 39 | }
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| 40 | }
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| 41 | }
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| 42 |
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[5686] | 43 | [Storable]
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| 44 | private int minimumFunctionDefinitions;
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| 45 | public int MinimumFunctionDefinitions {
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| 46 | get { return minimumFunctionDefinitions; }
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| 47 | set {
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| 48 | minimumFunctionDefinitions = value;
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| 49 | UpdateAdfConstraints();
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| 50 | }
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| 51 | }
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| 52 | [Storable]
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| 53 | private int maximumFunctionDefinitions;
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| 54 | public int MaximumFunctionDefinitions {
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| 55 | get { return maximumFunctionDefinitions; }
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| 56 | set {
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| 57 | maximumFunctionDefinitions = value;
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| 58 | UpdateAdfConstraints();
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| 59 | }
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| 60 | }
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| 61 | [Storable]
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| 62 | private int minimumFunctionArguments;
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| 63 | public int MinimumFunctionArguments {
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| 64 | get { return minimumFunctionArguments; }
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[5695] | 65 | set { minimumFunctionArguments = value; }
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[5686] | 66 | }
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| 67 | [Storable]
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| 68 | private int maximumFunctionArguments;
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| 69 | public int MaximumFunctionArguments {
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| 70 | get { return maximumFunctionArguments; }
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[5695] | 71 | set { maximumFunctionArguments = value; }
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[5686] | 72 | }
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| 73 |
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| 74 | [Storable]
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| 75 | private ProgramRootSymbol programRootSymbol;
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| 76 | public ProgramRootSymbol ProgramRootSymbol {
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| 77 | get { return programRootSymbol; }
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| 78 | }
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| 79 | ISymbol ISymbolicExpressionGrammar.ProgramRootSymbol {
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| 80 | get { return ProgramRootSymbol; }
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| 81 | }
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[5695] | 82 | [Storable(Name = "ProgramRootSymbol")]
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| 83 | private ISymbol StorableProgramRootSymbol {
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| 84 | get { return programRootSymbol; }
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| 85 | set { programRootSymbol = (ProgramRootSymbol)value; }
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| 86 | }
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[5686] | 87 |
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| 88 | private StartSymbol startSymbol;
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| 89 | public StartSymbol StartSymbol {
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| 90 | get { return startSymbol; }
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| 91 | }
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| 92 | ISymbol ISymbolicExpressionGrammar.StartSymbol {
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| 93 | get { return StartSymbol; }
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| 94 | }
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[5695] | 95 | [Storable(Name = "StartSymbol")]
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| 96 | private ISymbol StorableStartSymbol {
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| 97 | get { return startSymbol; }
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| 98 | set { startSymbol = (StartSymbol)value; }
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| 99 | }
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[5686] | 100 |
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| 101 | [Storable]
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| 102 | private Defun defunSymbol;
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| 103 | protected Defun DefunSymbol {
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| 104 | get { return defunSymbol; }
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| 105 | }
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[5695] | 106 | [Storable(Name = "DefunSymbol")]
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| 107 | private ISymbol StorableDefunSymbol {
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| 108 | get { return defunSymbol; }
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| 109 | set { defunSymbol = (Defun)value; }
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| 110 | }
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[5686] | 111 | #endregion
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| 112 |
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| 113 | [StorableConstructor]
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| 114 | protected SymbolicExpressionGrammar(bool deserializing) : base(deserializing) { }
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| 115 | protected SymbolicExpressionGrammar(SymbolicExpressionGrammar original, Cloner cloner)
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| 116 | : base(original, cloner) {
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[6233] | 117 | programRootSymbol = cloner.Clone(original.programRootSymbol);
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| 118 | startSymbol = cloner.Clone(original.StartSymbol);
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| 119 | defunSymbol = cloner.Clone(original.defunSymbol);
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| 120 |
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[5686] | 121 | maximumFunctionArguments = original.maximumFunctionArguments;
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| 122 | minimumFunctionArguments = original.minimumFunctionArguments;
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| 123 | maximumFunctionDefinitions = original.maximumFunctionDefinitions;
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| 124 | minimumFunctionDefinitions = original.minimumFunctionDefinitions;
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| 125 | }
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| 126 |
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[5688] | 127 | public SymbolicExpressionGrammar(string name, string description)
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| 128 | : base(name, description) {
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[5686] | 129 | programRootSymbol = new ProgramRootSymbol();
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| 130 | AddSymbol(programRootSymbol);
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[5691] | 131 | SetSubtreeCount(programRootSymbol, 1, 1);
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| 132 |
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[5686] | 133 | startSymbol = new StartSymbol();
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| 134 | AddSymbol(startSymbol);
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[5691] | 135 | SetSubtreeCount(startSymbol, 1, 1);
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| 136 |
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[5686] | 137 | defunSymbol = new Defun();
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| 138 | AddSymbol(defunSymbol);
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[5691] | 139 | SetSubtreeCount(defunSymbol, 1, 1);
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[5686] | 140 |
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| 141 | AddAllowedChildSymbol(programRootSymbol, startSymbol, 0);
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| 142 | UpdateAdfConstraints();
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| 143 | }
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| 144 |
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| 145 | private void UpdateAdfConstraints() {
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| 146 | SetSubtreeCount(programRootSymbol, minimumFunctionDefinitions + 1, maximumFunctionDefinitions + 1);
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| 147 |
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| 148 | // ADF branches maxFunctionDefinitions
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| 149 | for (int argumentIndex = 1; argumentIndex < maximumFunctionDefinitions + 1; argumentIndex++) {
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[5792] | 150 | RemoveAllowedChildSymbol(programRootSymbol, defunSymbol, argumentIndex);
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[5686] | 151 | AddAllowedChildSymbol(programRootSymbol, defunSymbol, argumentIndex);
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| 152 | }
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| 153 | }
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[6233] | 154 |
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| 155 | public event EventHandler ReadOnlyChanged;
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| 156 | protected virtual void OnReadOnlyChanged() {
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| 157 | var handler = ReadOnlyChanged;
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| 158 | if (handler != null)
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| 159 | handler(this, EventArgs.Empty);
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| 160 | }
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| 161 |
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| 162 | #region IStatefulItem
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| 163 | void IStatefulItem.InitializeState() { }
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| 164 | void IStatefulItem.ClearState() {
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| 165 | ReadOnly = false;
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| 166 | }
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| 167 | #endregion
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[5686] | 168 | }
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| 169 | }
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