XamlC compiler null-refs when encountering a binding to an array access

[333fred]

Description

When I have a ViewModel binding to an array backing property, I'm seeing the XamlC compiler null ref.

Steps to Reproduce

1. Clone https://github.com/333fred/maui-layout-bugs.
2. Comment https://github.com/333fred/maui-layout-bugs/blob/main/Test/MainPage.xaml.cs#L21 and uncomment https://github.com/333fred/maui-layout-bugs/blob/main/Test/MainPage.xaml.cs#L23
3. Attempt to build the solution.

Link to public reproduction project repository

https://github.com/333fred/maui-layout-bugs

Version with bug

Unknown/Other (please specify)

Last version that worked well

Unknown/Other

Affected platforms

iOS, Android, Windows, macOS, Other (Tizen, Linux, etc. not supported by Microsoft directly)

Affected platform versions

.NET 7 RC 1

Did you find any workaround?

Use a List instead, as on line 21.

Relevant log output

No response

[rachelkang]

@StephaneDelcroix what do you think?

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.

[XamlTest]

Verified this on Visual Studio Enterprise 17.7.0 Preview 1.0. Repro on Windows 11 and Android with provided Project: Test.zip

[StephaneDelcroix]

we look for the indexer instead of doing ldelem for System.Array, this is why it fails