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source: trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/TreeMatching/SymbolicExpressionTreeEqualityComparer.cs @ 17847

Last change on this file since 17847 was 16571, checked in by gkronber, 6 years ago

#2520: several fixes based on failing unit tests

  • adapted unit tests that check StorableConstructors
  • missing translations of StorableClass -> StorableType
  • missing StorableConstructors
  • missing or unecessary PluginDependencies / ProjectReferences
File size: 1.1 KB
RevLine 
[10562]1using System;
2using System.Collections.Generic;
3using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
[16565]4using HEAL.Attic;
[10562]5
6namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
[16565]7  [StorableType("535830d4-551e-4b53-97e3-9605bd7e785f")]
[10562]8  public class SymbolicExpressionTreeEqualityComparer : IEqualityComparer<ISymbolicExpressionTree> {
[16565]9    [Storable]
[11910]10    public SymbolicExpressionTreeNodeEqualityComparer SimilarityComparer { get; set; }
[10562]11
[16571]12
13    [StorableConstructor]
14    protected SymbolicExpressionTreeEqualityComparer(StorableConstructorFlag _) { }
15    public SymbolicExpressionTreeEqualityComparer() { }
16
[10562]17    public bool Equals(ISymbolicExpressionTree a, ISymbolicExpressionTree b) {
18      if (SimilarityComparer == null) throw new Exception("SimilarityComparer needs to be initialized first.");
[11910]19      return a.Length == b.Length && SymbolicExpressionTreeMatching.Match(a.Root, b.Root, SimilarityComparer) == Math.Min(a.Length, b.Length);
[10562]20    }
21
22    public int GetHashCode(ISymbolicExpressionTree tree) {
23      return (tree.Length << 8) % 12345;
24    }
[16571]25
[10562]26  }
27}
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