Accessing static data of functions

[Steven Schveighoffer]

On 10/14/21 10:21 AM, Ogi wrote:
> Is there any way to get/set static variables defined in functions from 
> the outside? Also, is there any way to access the types defined inside 
> in function to get/set their static members?
> 
> I’m writing a game engine that should support a dynamic plugin system 
> similar to what Manu Evans described in his [Using D Alongside a Game 
> Engine](https://youtu.be/FKceA691Wcg) talk. Basically, game objects are 
> defined in modules to be compiled as DLLs and loaded dynamically. This 
> allows making modifications without even restarting the game. Plugin 
> manager detects a modification in a plugin source file, serializes all 
> game objects into text, unloads a DLL, recompiles it, loads it again and 
> deserialize the game objects back.
> 
> So far so good, I’m now able to serialize/deserialize game objects 
> (including private fields), and any global variables defined in a 
> plugin, and any static members of the types defined in a plugin. But I 
> don’t know what to do with the stuff that could be defined inside of a 
> function, I can’t find any trait or a template that could access it.

As long as it has a mangle, you can access it.

https://run.dlang.io/is/uukAPa

Now, how to get at that mangle? I think it's impossible to do 
introspectively (or even detect that those things exist). But if you 
have control of the code, it's possible.

-Steve