#region License Information
/* HeuristicLab
* Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
namespace HeuristicLab.MainForm {
internal static class TypeExtension {
internal static bool IsAssignableTo(this Type type, Type other) {
if (other.IsAssignableFrom(type))
return true;
if (RecursiveCheckGenericTypes(type, other))
return true;
IEnumerable implementedInterfaces = type.GetInterfaces().Where(t => t.IsGenericType);
foreach (Type implementedInterface in implementedInterfaces) {
if (implementedInterface.CheckGenericTypes(other))
return true;
}
return false;
}
private static bool RecursiveCheckGenericTypes(Type type, Type other) {
if (type.CheckGenericTypes(other))
return true;
if (type.BaseType == null)
return false;
return RecursiveCheckGenericTypes(type.BaseType, other);
}
internal static bool CheckGenericTypes(this Type type, Type other) {
if (!type.IsGenericType || !other.IsGenericType)
return false;
if (type.GetGenericTypeDefinition() == other.GetGenericTypeDefinition())
return type.CheckGenericArguments(other);
return false;
}
private static bool CheckGenericArguments(this Type type, Type other) {
Type[] typeGenericArguments = type.GetGenericArguments();
Type[] otherGenericArguments = other.GetGenericArguments();
if (typeGenericArguments.Length != otherGenericArguments.Length)
return false;
for (int i = 0; i < typeGenericArguments.Length; i++) {
if (typeGenericArguments[i] != otherGenericArguments[i]
&& !otherGenericArguments[i].IsGenericParameter)
return false;
}
return true;
}
}
}