Re: Using getSymbolsByUDA in a static foreach loop

[Jack Stouffer via Digitalmars-d-learn]

On Thursday, 20 January 2022 at 01:14:51 UTC, Adam Ruppe wrote:
On Thursday, 20 January 2022 at 00:55:33 UTC, Jack Stouffer 
wrote:
            static foreach(member; __traits(allMembers, 
Manager))

member here is a string, not the member. I prefer to call it 
memberName.

Then you __traits(getMember, Manager, memberName) to actually 
get the alias you can pass to getAttributes.

Thanks, that fixed it. Final working version for anyone who finds 
this thread:

```d
import std.traits;
import std.stdio;

enum Runnable;

struct SubSystem
{
    void run()
    {
        writeln("SubSystem ran");
    }
}

struct Manager
{
    @Runnable SubSystem subsystem;

    void run()
    {
        static foreach(memberName; __traits(allMembers, Manager))
        {
            static foreach (attribute; __traits(getAttributes, 
__traits(getMember, Manager, memberName)))
            {
                static if (is(attribute == Runnable))
                {
                    __traits(getMember, Manager, 
memberName).run();
                }
            }
        }
    }
}


void main()
{
    Manager m;
    m.run();
}
```