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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
// <OWNER>Microsoft</OWNER>
//
using System;
using System.Runtime.Remoting;
using System.Runtime.Serialization;
using System.Globalization;
using System.Diagnostics.Contracts;
namespace System.Reflection
{
[Serializable]
internal class MemberInfoSerializationHolder : ISerializable, IObjectReference
{
#region Staitc Public Members
public static void GetSerializationInfo(SerializationInfo info, String name, RuntimeType reflectedClass, String signature, MemberTypes type)
{
GetSerializationInfo(info, name, reflectedClass, signature, null, type, null);
}
public static void GetSerializationInfo(
SerializationInfo info,
String name,
RuntimeType reflectedClass,
String signature,
String signature2,
MemberTypes type,
Type[] genericArguments)
{
if (info == null)
throw new ArgumentNullException("info");
Contract.EndContractBlock();
String assemblyName = reflectedClass.Module.Assembly.FullName;
String typeName = reflectedClass.FullName;
info.SetType(typeof(MemberInfoSerializationHolder));
info.AddValue("Name", name, typeof(String));
info.AddValue("AssemblyName", assemblyName, typeof(String));
info.AddValue("ClassName", typeName, typeof(String));
info.AddValue("Signature", signature, typeof(String));
info.AddValue("Signature2", signature2, typeof(String));
info.AddValue("MemberType", (int)type);
info.AddValue("GenericArguments", genericArguments, typeof(Type[]));
}
#endregion
#region Private Data Members
private String m_memberName;
private RuntimeType m_reflectedType;
// m_signature stores the ToString() representation of the member which is sometimes ambiguous.
// Mulitple overloads of the same methods or properties can identical ToString().
// m_signature2 stores the SerializationToString() representation which should be unique for each member.
// It is only written and used by post 4.0 CLR versions.
private String m_signature;
private String m_signature2;
private MemberTypes m_memberType;
private SerializationInfo m_info;
#endregion
#region Constructor
internal MemberInfoSerializationHolder(SerializationInfo info, StreamingContext context)
{
if (info == null)
throw new ArgumentNullException("info");
Contract.EndContractBlock();
String assemblyName = info.GetString("AssemblyName");
String typeName = info.GetString("ClassName");
if (assemblyName == null || typeName == null)
throw new SerializationException(Environment.GetResourceString("Serialization_InsufficientState"));
Assembly assem = FormatterServices.LoadAssemblyFromString(assemblyName);
m_reflectedType = assem.GetType(typeName, true, false) as RuntimeType;
m_memberName = info.GetString("Name");
m_signature = info.GetString("Signature");
// Only v4.0 and later generates and consumes Signature2
m_signature2 = (string)info.GetValueNoThrow("Signature2", typeof(string));
m_memberType = (MemberTypes)info.GetInt32("MemberType");
m_info = info;
}
#endregion
#region ISerializable
[System.Security.SecurityCritical] // auto-generated
public virtual void GetObjectData(SerializationInfo info, StreamingContext context)
{
throw new NotSupportedException(Environment.GetResourceString(ResId.NotSupported_Method));
}
#endregion
#region IObjectReference
[System.Security.SecurityCritical] // auto-generated
public virtual Object GetRealObject(StreamingContext context)
{
if (m_memberName == null || m_reflectedType == null || m_memberType == 0)
throw new SerializationException(Environment.GetResourceString(ResId.Serialization_InsufficientState));
BindingFlags bindingFlags =
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Static | BindingFlags.OptionalParamBinding;
switch (m_memberType)
{
#region case MemberTypes.Field:
case MemberTypes.Field:
{
FieldInfo[] fields = m_reflectedType.GetMember(m_memberName, MemberTypes.Field, bindingFlags) as FieldInfo[];
if (fields.Length == 0)
throw new SerializationException(Environment.GetResourceString("Serialization_UnknownMember", m_memberName));
return fields[0];
}
#endregion
#region case MemberTypes.Event:
case MemberTypes.Event:
{
EventInfo[] events = m_reflectedType.GetMember(m_memberName, MemberTypes.Event, bindingFlags) as EventInfo[];
if (events.Length == 0)
throw new SerializationException(Environment.GetResourceString("Serialization_UnknownMember", m_memberName));
return events[0];
}
#endregion
#region case MemberTypes.Property:
case MemberTypes.Property:
{
PropertyInfo[] properties = m_reflectedType.GetMember(m_memberName, MemberTypes.Property, bindingFlags) as PropertyInfo[];
if (properties.Length == 0)
throw new SerializationException(Environment.GetResourceString("Serialization_UnknownMember", m_memberName));
if (properties.Length == 1)
return properties[0];
if (properties.Length > 1)
{
for (int i = 0; i < properties.Length; i++)
{
if (m_signature2 != null)
{
if (((RuntimePropertyInfo)properties[i]).SerializationToString().Equals(m_signature2))
return properties[i];
}
else
{
if ((properties[i]).ToString().Equals(m_signature))
return properties[i];
}
}
}
throw new SerializationException(Environment.GetResourceString(ResId.Serialization_UnknownMember, m_memberName));
}
#endregion
#region case MemberTypes.Constructor:
case MemberTypes.Constructor:
{
if (m_signature == null)
throw new SerializationException(Environment.GetResourceString(ResId.Serialization_NullSignature));
ConstructorInfo[] constructors = m_reflectedType.GetMember(m_memberName, MemberTypes.Constructor, bindingFlags) as ConstructorInfo[];
if (constructors.Length == 1)
return constructors[0];
if (constructors.Length > 1)
{
for (int i = 0; i < constructors.Length; i++)
{
if (m_signature2 != null)
{
if (((RuntimeConstructorInfo)constructors[i]).SerializationToString().Equals(m_signature2))
return constructors[i];
}
else
{
if (constructors[i].ToString().Equals(m_signature))
return constructors[i];
}
}
}
throw new SerializationException(Environment.GetResourceString(ResId.Serialization_UnknownMember, m_memberName));
}
#endregion
#region case MemberTypes.Method:
case MemberTypes.Method:
{
MethodInfo methodInfo = null;
if (m_signature == null)
throw new SerializationException(Environment.GetResourceString(ResId.Serialization_NullSignature));
Type[] genericArguments = m_info.GetValueNoThrow("GenericArguments", typeof(Type[])) as Type[];
MethodInfo[] methods = m_reflectedType.GetMember(m_memberName, MemberTypes.Method, bindingFlags) as MethodInfo[];
if (methods.Length == 1)
methodInfo = methods[0];
else if (methods.Length > 1)
{
for (int i = 0; i < methods.Length; i++)
{
if (m_signature2 != null)
{
if (((RuntimeMethodInfo)methods[i]).SerializationToString().Equals(m_signature2))
{
methodInfo = methods[i];
break;
}
}
else
{
if (methods[i].ToString().Equals(m_signature))
{
methodInfo = methods[i];
break;
}
}
// Handle generic methods specially since the signature match above probably won't work (the candidate
// method info hasn't been instantiated). If our target method is generic as well we can skip this.
if (genericArguments != null && methods[i].IsGenericMethod)
{
if (methods[i].GetGenericArguments().Length == genericArguments.Length)
{
MethodInfo candidateMethod = methods[i].MakeGenericMethod(genericArguments);
if (m_signature2 != null)
{
if (((RuntimeMethodInfo)candidateMethod).SerializationToString().Equals(m_signature2))
{
methodInfo = candidateMethod;
break;
}
}
else
{
if (candidateMethod.ToString().Equals(m_signature))
{
methodInfo = candidateMethod;
break;
}
}
}
}
}
}
if (methodInfo == null)
throw new SerializationException(Environment.GetResourceString(ResId.Serialization_UnknownMember, m_memberName));
if (!methodInfo.IsGenericMethodDefinition)
return methodInfo;
if (genericArguments == null)
return methodInfo;
if (genericArguments[0] == null)
return null;
return methodInfo.MakeGenericMethod(genericArguments);
}
#endregion
default:
throw new ArgumentException(Environment.GetResourceString("Serialization_MemberTypeNotRecognized"));
}
}
#endregion
}
}
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