source: branches/PushGP/HeuristicLab.PushGP/HeuristicLab.Problems.ProgramSynthesis.Base/Extensions/TypeExtensions.cs @ 15334

using System;

namespace HeuristicLab.Problems.ProgramSynthesis.Base.Extensions {
  public static class TypeExtensions {
    public static bool IsSubclass(this Type type, Type baseType) {
      if (type == null || baseType == null || type == baseType)
        return false;

      if (baseType.IsGenericType == false) {
        if (type.IsGenericType == false)
          return type.IsSubclassOf(baseType);
      } else {
        baseType = baseType.GetGenericTypeDefinition();
      }

      type = type.BaseType;
      var objectType = typeof(object);
      while (type != objectType && type != null) {
        var curentType = type.IsGenericType ? type.GetGenericTypeDefinition() : type;
        if (curentType == baseType)
          return true;

        type = type.BaseType;
      }

      return false;
    }
  }
}