82 lines
2.8 KiB
C#
82 lines
2.8 KiB
C#
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#region CPL License
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/*
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Nuclex Framework
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Copyright (C) 2002-2010 Nuclex Development Labs
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This library is free software; you can redistribute it and/or
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modify it under the terms of the IBM Common Public License as
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published by the IBM Corporation; either version 1.0 of the
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License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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IBM Common Public License for more details.
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You should have received a copy of the IBM Common Public
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License along with this library
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Reflection;
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namespace Nuclex.Support.Cloning {
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/// <summary>Contains helper methods for the cloners</summary>
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internal static class ClonerHelpers {
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/// <summary>
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/// Returns all the fields of a type, working around a weird reflection issue
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/// where explicitly declared fields in base classes are returned, but not
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/// automatic property backing fields.
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/// </summary>
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/// <param name="type">Type whose fields will be returned</param>
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/// <param name="bindingFlags">Binding flags to use when querying the fields</param>
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/// <returns>All of the type's fields, including its base types</returns>
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public static FieldInfo[] GetFieldInfosIncludingBaseClasses(
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Type type, BindingFlags bindingFlags
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) {
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FieldInfo[] fieldInfos = type.GetFields(bindingFlags);
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// If this class doesn't have a base, don't waste any time
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if(type.BaseType == typeof(object)) {
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return fieldInfos;
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} else { // Otherwise, collect all types up to the furthest base class
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var fieldInfoList = new List<FieldInfo>(fieldInfos);
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while(type.BaseType != typeof(object)) {
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type = type.BaseType;
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fieldInfos = type.GetFields(bindingFlags);
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// Look for fields we do not have listed yet and merge them into the main list
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for(int index = 0; index < fieldInfos.Length; ++index) {
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bool found = false;
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for(int searchIndex = 0; searchIndex < fieldInfoList.Count; ++searchIndex) {
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bool match =
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(fieldInfoList[searchIndex].DeclaringType == fieldInfos[index].DeclaringType) &&
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(fieldInfoList[searchIndex].Name == fieldInfos[index].Name);
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if(match) {
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found = true;
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break;
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}
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}
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if(!found) {
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fieldInfoList.Add(fieldInfos[index]);
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}
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}
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}
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return fieldInfoList.ToArray();
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}
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}
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}
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} // namespace Nuclex.Support.Cloning
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