`[INotifyPropertyChanged]` is not supported on records

[nxtn-staged]

Describe the bug

When applied to record (class) types, the [INotifyPropertyChanged] attribute has no effect.

Regression

No response

Steps to reproduce

[INotifyPropertyChanged]
partial record Record()
{
    [ObservableProperty]
    private int x;
}

Expected behavior

The PropertyChanged event and the OnPropertyChanged method are generated.

Screenshots

No response

IDE and version

VS 2022 Preview

IDE version

No response

Nuget packages

• [ ] CommunityToolkit.Common
• [ ] CommunityToolkit.Diagnostics
• [ ] CommunityToolkit.HighPerformance
• [X] CommunityToolkit.Mvvm (aka MVVM Toolkit)

Nuget package version(s)

8.1.0

Additional context

No response

Help us help you

Yes, I'd like to be assigned to work on this item

[CodingOctocat]

Does record represent immutability?

[BYJRK]

Does record represent immutability?

Record type is not necessarily asking all members to be immutable. It can still provide useful functions such as a nice ToString format and equal checking

[ememadegbola]

I've run into this issue too when trying to work with record types. The workaround we've used is to create a new ObservableRecord type using the source from ObservableObject with one or two tweaks. Would be nice to have "official" support for records though