Automatically expand variable scope tabs

[moon6969]

When stepping in debugger, variable scopes (Parameter, Local, etc.) do not automatically expand - even if they were previously expanded... "Local" starts closed... So I open "Local" and Continue (F5)... No locals defined yet... "Local" is closed again :disappointed:

My suggestion is something like this...

        {
            "type": "lua",
            "request": "launch",
            ...
            autoExpand.local: true,
            autoExpand.parameter: true,
            autoExpand.upvalue: true,
            autoExpand.global: false,
            autoExpand.standard: false,
        },

It would also be good if the scope stayed visible even if it is empty. Currently if there are no locals, the "Local" scope disappears - I think it should always be visible.

[actboy168]

Automatically expand is the behavior of VSCode, DA(lua-debug) only provides scope for whether it is expensive. This tag will affect whether VSCode will automatically expand, but it is not decisive.Currently only global and standard are expensive.

[moon6969]

Thank you for quick reply.

This issue was raised to vscode for similar issue with Python debugger... In debug mode, arguments are by default collapsed #32199 In particular this comment indicates it is in control of the debugger... https://github.com/Microsoft/vscode/issues/32199#issuecomment-321597173 Here is how it works with Python debugger now:

At first break-point, "Locals" is expanded automatically...

Upon stepping into the function, there are no local variables, but the "Locals" scope is still visible and expanded (v) even though it's empty.

Next step, the y: 'xo' line is automatically visible ✔️

I think the issue is that for Lua, the "Local" scope is removed when empty?

Thanks for your debugger - it's very useful 👍

[actboy168]

There are currently seven scopes. If it does not hide empty scopes, there will be a lot of useless information. I think this is not a good idea.