|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.IO;
using System.ComponentModel;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Windows;
using System.Formats.Nrbf;
namespace PresentationCore.Tests.TestUtilities;
internal static class BinaryFormatTestExtensions
{
/// <summary>
/// Serializes the object using the <see cref="BinaryFormatter"/> and reads it into a <see cref="BinaryFormattedObject"/>.
/// </summary>
public static SerializationRecord SerializeAndParse(this object source) => NrbfDecoder.Decode(source.Serialize());
/// <summary>
/// Serializes the object using the <see cref="BinaryFormatter"/>.
/// </summary>
public static Stream Serialize(this object source)
{
MemoryStream stream = new();
using var formatterScope = new BinaryFormatterScope(enable: true);
#pragma warning disable SYSLIB0011 // Type or member is obsolete
BinaryFormatter formatter = new();
#pragma warning restore SYSLIB0011
formatter.Serialize(stream, source);
stream.Position = 0;
return stream;
}
/// <summary>
/// Returns `true` if the <see cref="Type"/> would use the <see cref="BinaryFormatter"/> for the purposes
/// of designer serialization (either through Resx or IPropertyBag for ActiveXImpl).
/// </summary>
public static bool IsBinaryFormatted(this Type type)
{
bool iSerializable = type.IsAssignableTo(typeof(ISerializable));
#pragma warning disable SYSLIB0050 // Type or member is obsolete
bool serializable = type.IsSerializable;
#pragma warning restore SYSLIB0050
if (!iSerializable && !serializable)
{
return false;
}
TypeConverter converter;
try
{
converter = TypeDescriptor.GetConverter(type);
}
catch (Exception)
{
// No valid type converter.
return true;
}
return !((converter.CanConvertFrom(typeof(string)) && converter.CanConvertTo(typeof(string)))
|| (converter.CanConvertFrom(typeof(byte[])) && converter.CanConvertTo(typeof(byte[]))));
}
}
|