Source generators for StyledProperty/DirectProperty/AttachedProperty boilerplate

[lucdem]

I created a proof of concept repo, but the idea is that it would be nice to have a code generator that can take this:

public partial class MyControl : TemplatedControl
{
    [AvaStyledProperty]
    private string myStr = string.Empty;
}

And generate this:

public partial class MyControl
{
        public static readonly StyledProperty<string> MyStrProperty = AvaloniaProperty.Register<MyControl, string>("MyStr");
        
        public string MyStr
        { 
	        get => GetValue(MyStrProperty);
	        set => SetValue(MyStrProperty, value);
        }
}

[jack775544]

I have used this library in the past as well: https://github.com/HavenDV/DependencyPropertyGenerator

[maxkatz6]

We are waiting until it will be possible to make partial properties. Source generators on fields make little sense with styled properties, as these are not in fact backed by fields.

[maxkatz6]

But it's good to have options to explore anyway. Something like this would also make more sense with DirectProperties, which do use fields.

[lucdem]

It adds a small memory overhead of an extra field in the control, but I think that's a price worth paying for the added convenience. It's true partial properties would be a much better solution, but who knows when that's going to actually happen.

[timunie]

well for a 3rd party library as you have it, yes 100 %. for build in solution, probably not as it may be very confusing.