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#region License
/*
Microsoft Public License (Ms-PL)
MonoGame - Copyright © 2009 The MonoGame Team
All rights reserved.
This license governs use of the accompanying software. If you use the software, you accept this license. If you do not
accept the license, do not use the software.
1. Definitions
The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning here as under
U.S. copyright law.
A "contribution" is the original software, or any additions or changes to the software.
A "contributor" is any person that distributes its contribution under this license.
"Licensed patents" are a contributor's patent claims that read directly on its contribution.
2. Grant of Rights
(A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations in section 3,
each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution or any derivative works that you create.
(B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in section 3,
each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution in the software or derivative works of the contribution in the software.
3. Conditions and Limitations
(A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
(B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software,
your patent license from such contributor to the software ends automatically.
(C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution
notices that are present in the software.
(D) If you distribute any portion of the software in source code form, you may do so only under this license by including
a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or object
code form, you may only do so under a license that complies with this license.
(E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees
or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the extent
permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a particular
purpose and non-infringement.
*/
#endregion License
// Original source from SilverSprite project at http://silversprite.codeplex.com
using System;
using System.Reflection;
using Microsoft.Xna.Framework.Content;
namespace Microsoft.Xna.Framework.Content
{
internal class ReflectiveReader<T> : ContentTypeReader
{
ConstructorInfo constructor;
PropertyInfo[] properties;
FieldInfo[] fields;
ContentTypeReaderManager manager;
Type targetType;
Type baseType;
ContentTypeReader baseTypeReader;
internal ReflectiveReader() : base(typeof(T))
{
targetType = typeof(T);
}
protected internal override void Initialize(ContentTypeReaderManager manager)
{
base.Initialize(manager);
this.manager = manager;
if(targetType.BaseType != null && targetType.BaseType != typeof(object))
{
baseType = targetType.BaseType;
baseTypeReader = manager.GetTypeReader(baseType);
}
BindingFlags attrs = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly;
constructor = targetType.GetConstructor(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance, null, new Type[0], null);
properties = targetType.GetProperties(attrs);
fields = targetType.GetFields(attrs);
}
object CreateChildObject(PropertyInfo property, FieldInfo field)
{
object obj = null;
Type t;
if (property != null)
{
t = property.PropertyType;
}
else
{
t = field.FieldType;
}
if (t.IsClass && !t.IsAbstract)
{
ConstructorInfo constructor = t.GetConstructor(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance, null, new Type[0], null);
if (constructor != null)
{
obj = constructor.Invoke(null);
}
}
return obj;
}
private void Read(object parent, ContentReader input, MemberInfo member)
{
PropertyInfo property = member as PropertyInfo;
FieldInfo field = member as FieldInfo;
if (property != null && property.CanWrite == false) return;
Attribute attr = Attribute.GetCustomAttribute(member, typeof(ContentSerializerIgnoreAttribute));
if (attr != null) return;
Attribute attr2 = Attribute.GetCustomAttribute(member, typeof(ContentSerializerAttribute));
bool isSharedResource = false;
if (attr2 != null)
{
var cs = attr2 as ContentSerializerAttribute;
isSharedResource = cs.SharedResource;
}
else
{
if (property != null)
{
foreach (MethodInfo info in property.GetAccessors(true))
{
if (info.IsPublic == false)
return;
}
}
else
{
if (!field.IsPublic)
return;
}
}
ContentTypeReader reader = null;
if (property != null)
{
reader = manager.GetTypeReader(property.PropertyType);
}
else
{
reader = manager.GetTypeReader(field.FieldType);
}
if (!isSharedResource)
{
object existingChildObject = CreateChildObject(property, field);
object obj2 = null;
obj2 = input.ReadObject<object>(reader, existingChildObject);
if (property != null)
{
property.SetValue(parent, obj2, null);
}
else
{
// Private fields can be serialized if they have ContentSerializerAttribute added to them
if (field.IsPrivate == false || attr2 != null)
field.SetValue(parent, obj2);
}
}
else
{
Action<object> action = delegate(object value)
{
if (property != null)
{
property.SetValue(parent, value, null);
}
else
{
field.SetValue(parent, value);
}
};
input.ReadSharedResource<object>(action);
}
}
protected internal override object Read(ContentReader input, object existingInstance)
{
T obj;
if (existingInstance != null)
{
obj = (T)existingInstance;
}
else
{
obj = (constructor == null ? (T)Activator.CreateInstance(typeof(T), false) : (T)constructor.Invoke(null));
}
if(baseTypeReader != null)
baseTypeReader.Read(input, obj);
foreach (PropertyInfo property in properties)
{
Read(obj, input, property);
}
foreach (FieldInfo field in fields)
{
Read(obj, input, field);
}
return obj;
}
}
}
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