# OnCreateForCompiler(ref SystemState)

> Generated by compilation pipeline and used internally.

## Definition

* **Type:** Method
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

## OnCreateForCompiler(SystemState)

```csharp
void OnCreateForCompiler(ref SystemState state)
```

### Parameters

**** (\[SystemState]\(/engine/7000.0/script-reference/unity/entities/systemstate)): The [SystemState](/engine/7000.0/script-reference/unity/entities/systemstate.md) backing this system instance