Detecting static vars

ID:2293909
 
Sep 14 2017, 3:35 pm
Is there any method to natively detect a var that has the static modifier at runtime?

We are working on improvements to our garbage collection queue where we automatically null all vars when sending the object to be finally Del'd (reduces deletion time), because developers keep forgetting to null them in the Destroy proc of the object as part of the soft delete functionality in ss13

This presents a problem as we never want to null static/shared class vars on an instance.

The current plan is to use a macro to prefix the var with some obvious key __static__ etc that can be checked. But just before I go ahead with that, I thought I'd check if anyone has any byond magic to test if a var is of the type static at runtime.
Sep 14 2017, 4:21 pm
Nope. As a level 20 DMancer, I do not believe there is currently a method to detect static variables on a prototype.
Sep 15 2017, 11:27 am
 
// crude but works, somewhat
proc/get_static_vars(type)
    . = list()

    var/datum/instance_1 = new type
    var/datum/instance_2 = new type

    // wont work for anything that cant be instantiated (clients etc)
    for(var/v in instance_1.vars)
        try
            var/original = instance_1.vars[v]
            instance_1.vars[v] = 0
            instance_2.vars[v] = 1

            if(instance_1.vars[v] == instance_2.vars[v])
                . += v

            instance_1.vars[v] = original
        catch

random_datum
    var/static
        static_var_1
        static_var_2

    var
        non_static = 0

client/verb/test()
    src << jointext(get_static_vars(/random_datum), " ,")

// output: static_var_1 ,static_var_2 ,tag