How do I Object.Use (keepalive) a variant?

[nii236]

Minimum Reproducible Example

I have a NodePath that panics on "expired pointer" whenever I try to access it inside Input.

	if Input.IsActionPressed("ui_accept", false) {
		// This panics
		b.Super().AsNode().GetNode(b.NodePath.String())
	}

But if I fmt.Println on it first, it doesn't panic.

	fmt.Println("Process", b.NodePath.String())
	if Input.IsActionPressed("ui_accept", false) {
		// This doesn't panic
		b.Super().AsNode().GetNode(b.NodePath.String())
	}

I'm guessing I need to run Object.Use on Path.ToNode. But that type is not a node, it is an instance, so I can not use Object.Use on it.

How do I avoid the expired pointer error on variants?

[Splizard]

As you are doing, you can keep the value alive by calling a function on it ie. b.NodePath.IsEmpty() (you don't have to do anything with the result).

	b.NodePath.IsEmpty() // keepalive
	if Input.IsActionPressed("ui_accept", false) {
		// This doesn't panic
		b.Super().AsNode().GetNode(b.NodePath.String())
	}

I've been thinking about automatically keeping alive all Go properties inside Go defined classdb.Extension structs (but haven't worked on this yet). If I implement something like this, I'm hoping it would cover most use-cases of keeping Engine-references around in Go.