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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*============================================================
**
**
**
** Purpose: Provides some static methods to aid with the implementation
** of a Formatter for Serialization.
**
**
============================================================*/
namespace System.Runtime.Serialization {
using System;
using System.Reflection;
using System.Collections;
using System.Collections.Generic;
using System.Security;
using System.Runtime.Remoting;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Threading;
using System.IO;
using System.Text;
using System.Globalization;
using System.Diagnostics;
using System.Diagnostics.Contracts;
public static class FormatterServices {
// Gets a new instance of the object. The entire object is initalized to 0 and no
// constructors have been run. **THIS MEANS THAT THE OBJECT MAY NOT BE IN A STATE
// CONSISTENT WITH ITS INTERNAL REQUIREMENTS** This method should only be used for
// deserialization when the user intends to immediately populate all fields. This method
// will not create an unitialized string because it is non-sensical to create an empty
// instance of an immutable type.
//
public static Object GetUninitializedObject(Type type) {
if ((object)type == null) {
throw new ArgumentNullException(nameof(type));
}
Contract.EndContractBlock();
if (!(type is RuntimeType)) {
throw new SerializationException(Environment.GetResourceString("Serialization_InvalidType", type.ToString()));
}
return nativeGetUninitializedObject((RuntimeType)type);
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern Object nativeGetUninitializedObject(RuntimeType type);
private static Binder s_binder = Type.DefaultBinder;
/*============================LoadAssemblyFromString============================
**Action: Loads an assembly from a given string. The current assembly loading story
** is quite confusing. If the assembly is in the fusion cache, we can load it
** using the stringized-name which we transmitted over the wire. If that fails,
** we try for a lookup of the assembly using the simple name which is the first
** part of the assembly name. If we can't find it that way, we'll return null
** as our failure result.
**Returns: The loaded assembly or null if it can't be found.
**Arguments: assemblyName -- The stringized assembly name.
**Exceptions: None
==============================================================================*/
internal static Assembly LoadAssemblyFromString(String assemblyName) {
//
// Try using the stringized assembly name to load from the fusion cache.
//
BCLDebug.Trace("SER", "[LoadAssemblyFromString]Looking for assembly: ", assemblyName);
Assembly found = Assembly.Load(assemblyName);
return found;
}
}
}
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