Suggestion: Only execute dapui.eval(), if an active session exists

[elagil]

Currently, executing dapui.eval() without an active session yields an empty box. That might not be the intended behavior.
I use a wrapper around dapui.eval(), which might be a useful default:

--- Only execute the provided function in an active DAP session.
local execute_if_dap_active = function(fn)
    if require("dap").session() == nil then
        --- dap.session() returns the active session, or `nil`, if there is no active session.
        return
    else
        fn()
    end
end

--- Then, I use this mapping.
vim.keymap.set("n", "<leader>de", function() execute_if_dap_active(dapui.eval) end, {silent})

[rcarriga]

Yeah makes sense 👍 Added a notification too

[elagil]

That's great! Thanks for implementing this.