Using SystemAPI in static class?

[west comet]

Hello, I have this method with a NativeArray return value which I will likely be using in many different systems.
Instead of having to copy-paste this method, am I able to put this method into a static class?

public NativeArray<TowerPartData> GetParts()
{
    BlobArray<E> Es = SystemAPI.GetSingleton<E>().Es.E.Value.Es;
    NativeArray<E> x = new(Es.Length, Allocator.TempJob);

    for (int i = 0; i < towerPartsManaged.Length; i++) 
        x[i] = Es[i];

    return x;
}```
A compromise I can think of is having to pass in my singleton query as an argument, however I'd like to know if I'm able to use the SystemAPI in a static class (perhaps it works because it is being called from a system?)

[proven meadow]

SystemApi depends on being able to write the state to system so you can't have static methods

Otherwise it couldn't read the cached state

Like system api get singleton is really just, create query in on create, store in system

Call query.getsingleton where you used system api

It couldn't access the query stored in the system instance if it was static

[west comet]

Ah kk, thanks. There should be a way to pass in a system state to use some sort of external api, would allow for things like these.