Lua Question

Guides UI and Macro
8

I don’t understand what you need stubs for. You can just table.insert new cases into a table when needed.

local cases = {}

table.insert(cases, function()
	-- validation logic in here
	return true -- or false
end)

-- or add a function for it that's accessible throughout your addons namespace
_, ns = ...

function ns.RegisterValidationCase(case)
	table.insert(cases, case)
end

-- and register a case
ns.RegisterValidationCase(function()
	-- validation logic in here
	return true -- or false
end)