source: trunk/sources/HeuristicLab.Common/3.3/TypeExtensions.cs @ 9855

Last change on this file since 9855 was 9855, checked in by jkarder, 9 years ago

#2095

  • added FieldInfo cache
  • refactored GetAllFields to work iteratively
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 System.Reflection;
25using System.Text;
26
27namespace HeuristicLab.Common {
28  public static class TypeExtensions {
29    public static string GetPrettyName(this Type x) {
30      return x.GetPrettyName(false);
31    }
32    public static string GetPrettyName(this Type x, bool includeNamespace) {
33      StringBuilder sb = new StringBuilder();
34      if ((includeNamespace) && !string.IsNullOrEmpty(x.Namespace))
35        sb.Append(x.Namespace).Append(".");
36      sb.Append(x.Name);
37      if (x.IsGenericType) {
38        Type[] genericParams = x.GetGenericArguments();
39        sb.Remove(sb.ToString().LastIndexOf('`'), genericParams.Length.ToString().Length + 1);
40        sb.Append("<");
41        for (int i = 0; i < genericParams.Length; i++) {
42          if (i > 0) sb.Append(", ");
43          sb.Append(genericParams[i].GetPrettyName(includeNamespace));
44        }
45        sb.Append(">");
46      }
47      return sb.ToString();
48    }
49
50    public static IEnumerable<FieldInfo> GetAllFields(this Type type) {
51      while (type != null) {
52        foreach (var field in type.GetFields(BindingFlags.Static | BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic))
53          yield return field;
54        type = type.BaseType;
55      }
56    }
57
58    // http://stackoverflow.com/questions/457676/c-reflection-check-if-a-class-is-derived-from-a-generic-class
59    public static bool IsSubclassOfRawGeneric(this Type toCheck, Type generic) {
60      while (toCheck != typeof(object)) {
61        var cur = toCheck.IsGenericType ? toCheck.GetGenericTypeDefinition() : toCheck;
62        if (generic == cur) {
63          return true;
64        }
65        toCheck = toCheck.BaseType; // baseType is null when toCheck is an Interface
66        if (toCheck == null)
67          return false;
68      }
69      return false;
70    }
71  }
72}
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