Error trying to use XmlSerializer with PS5-styled classes #5337
Description
Steps to reproduce
Consider that I want to serialize this simple PS5-styled class to XML:
class TelegramSettings {
[bool] $EnableTelegramNotification
}
function Serialize-TelegramSettings($settings) {
$type = [TelegramSettings]
$serializer = New-Object Xml.Serialization.XmlSerializer $type
$writer = New-Object IO.StringWriter
try {
$serializer.Serialize($writer, $settings)
$writer.ToString()
} finally {
$writer.Dispose()
}
}
$settings = [TelegramSettings]::new()
Serialize-TelegramSettings $settingsExpected behavior
<?xml version="1.0" encoding="utf-16"?>
<TelegramSettings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<EnableTelegramNotification>false</EnableTelegramNotification>
</TelegramSettings>
That could be achieved with Add-Type and C# snippet:
$source = @"
namespace Telegram
{
public class TelegramSettings
{
public bool EnableTelegramNotification { get; set; }
}
}
"@
$TelegramSettings = Add-Type -TypeDefinition $source -PassThru
function Serialize-TelegramSettings($settings) {
$type = $TelegramSettings
$serializer = New-Object Xml.Serialization.XmlSerializer $type
$writer = New-Object IO.StringWriter
try {
$serializer.Serialize($writer, $settings)
$writer.ToString()
} finally {
$writer.Dispose()
}
}
$settings = New-Object $TelegramSettings
Serialize-TelegramSettings $settingsAs you can see, my Serialize-TelegramSettings is likely right.
Actual behavior
New-Object : Exception calling ".ctor" with "1" argument(s): "A non-collectible assembly may not reference a collectible assembly."
At Test1.ps1:7 char:19
+ $serializer = New-Object Xml.Serialization.XmlSerializer $type
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [New-Object], MethodInvocationException
+ FullyQualifiedErrorId : ConstructorInvokedThrowException,Microsoft.PowerShell.Commands.NewObjectCommand```
It looks like there's a difference between dynamically-generated assembly created by Add-Type and the one created by a class definition, and I couldn't found any settings to change the class behavior to create a non-collectible assembly or fix the issue somehow else.
Environment data
Verified on both v6.0.0-beta.7 and v5.1:
> $PSVersionTable
Name Value
---- -----
PSVersion 6.0.0-beta
PSEdition Core
GitCommitId v6.0.0-beta.7
OS Microsoft Windows 10.0.15063
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0> $PSVersionTable
Name Value
---- -----
PSVersion 5.1.15063.674
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.15063.674
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1