Hi,
I'm writing this global Config class, with an AA member:
```d
module my.config;
class Config
{
Command[string] commands;
}
__gshared Config CONFIG;
```
and initialize it in another module:
```d
module my.app;
import my.config;
void main()
{
CONFIG = new Config();
CONFIG.commands["bye"] = new Command(...); // add commands
}
```
This is OK. But when I use a local variable to hold the commands
AA:
```
auto cmds = CONFIG.commands;
cmds["list"] = new Command(...);
```
The command "list" is not added.
I guess what happened here was that `cmds` is a threadlocal
variable, so the compiler somehow copied the CONFIG.commands.
My questions are:
1. Are AAs reference type? if so, why does the compiler copy it?
2. How do I reference a member of __gshared global objects?
