Why isn't this Generic Job using Burst?

[craggy karma]

From my understanding as long as you manually define the types when you create the Job it should work with Burst.

Here is the Job I am attempting to use, and it is marked as BurstCompiled:

[BurstCompile]
public struct ECTParallelJob<MyData> : IJobParallelFor where MyData : unmanaged, IParallelData<MyData>
{
    public NativeArray<MyData> DataArray;

    public void Execute(int index)
    {
        DataArray[index] = DataArray[index].Execute();
    }
}

Here's how I'm creating the job (Data is an unmanaged struct):

public override ECTParallelJob<Data> CreateJob(NativeArray<Data> data) => new ECTParallelJob<Data>(data);

As you can see in the following screenshot, it is showing in the Burst Inspector.

I'm getting the following warning still, even though the job is NOT defined in a generic class, and I AM instantiating the job with concrete types:

This may be because the [BurstCompile] method is defined in a generic class, and the generic class is not instantiated with concrete types anywhere in your code.

Help would be much appreciated, thank you!

Why isn't this Generic Job using Burst?

[ocean falcon]

You need to create specific type of job with concrete generic type or use assembly attribute to define it

[grim imp]

Docs around the topic can be found here: https://docs.unity3d.com/Packages/com.unity.burst@1.8/manual/compilation-generic-jobs.html

[craggy karma]

Am I not already doing this? I'm defining it with Data, which is not a generic.

Maybe I'm just dumb with this, still getting the hang of Jobs

[ocean falcon]

you do it in runtime

but it must be compile time

by the time your code with generic job runs

no constructor or type will be accessible

for that specific job

[craggy karma]

Ok, I got it working, but for some reason it only recompiles after restarting the editor

Which is really annoying

Once again, maybe I'm just doing something wrong, but it is still frustrating

If I make changes, it starts throwing the same error as before, but after restarting Unity it works again

Here's my Job

Here is how I define my job

And here is JobData

[ocean falcon]

either explicitly define job as new type

or use assembly attribute to register your generic

the way you define job will not be compiled by burst

[craggy karma]

I'm sorry, but I don't understand what you mean, can you give me an example?

[ocean falcon]

struct MyJob : GenericJob<SpecificType>

or

[RegisterGenericJob(typeof(smth))] on namespace

not sure how attribute correctly is written

look at manual Dani provided

[craggy karma]

I thought you could only derive structs from interfaces, not other structs?

[ocean falcon]

yeah, consider it as IGenericJob<T>

😅

such explicit declaration with BurstCompile attribute

is literally the only way

or assembly attribute

that's it

once again - take a look at manual

it has answers and examples on your question

[craggy karma]

Damn, that sucks because I was trying to override the override function for my generic job since it will be used the exact way for all of those inheriting it

[ocean falcon]

if bytecode is going to be the same

you might just reinterpret arrays

you pass into job

[craggy karma]

Are you sure you can't have generic Jobs that are structs?

I swear I saw people doing this online @ocean falcon

[old mist]

yes, you can. in your screenshots, you didn't define IParallelData<T>; what is that?